[ Victoria/GLOBE - 1 - 16:33:47 ]
Hello Everyone and Welcome to Canada's GLOBE Web Chat on Clouds! We have lots of great experts, most of them scattered all over Canada. Today's topic is wonderful.Clouds are fun to watch, because they grow and change and each cloud has a life. The clouds over our heads today may have been hundreds of kilometers away yesterday and probably will be somewhere else tomorrow, in a different shape. They can foretell the weather and can tell us much, much more because every cloud has its own story!

[ jimbob/shawniganlakeschool/CA - 2 - 16:34:08 ]
hello

[ TheBuffalo/ShawniganLakeSchool/CA - 3 - 16:34:15 ]
hello

[ Danielle/ShawniganLakeSchool/CA - 4 - 16:34:20 ]
hey waz Up!

[ gabby/shawniganlake/CA - 5 - 16:34:27 ]
hi

[ maRiNa/shawshank/CA - 6 - 16:34:46 ]
hey y'all eh, what is happenin' eh. um, how is a cloud formed and what is it made of eh

[ JuLiE/ShawniganLakeSchool/CA - 7 - 16:34:46 ]
hey sup??

[ jimbob/shawniganlakeschool/CA - 8 - 16:34:49 ]
haruki

[ KEN/ShawniganLakeSchool/CA - 9 - 16:34:53 ]
sup guyz

[ Rob_ot3SLS - 10 - 16:34:58 ]
Hello

[ CarlosFrench/BostonSouthEndPublicLibrary/US - 11 - 16:34:58 ]
Hey from Boston

[ TheBuffalo/ShawniganLakeSchool/SriLanka - 12 - 16:34:59 ]
hello

[ Paul_Ruscher/FSU - 13 - 16:35:01 ]
Hello from Tallahassee! There are still many Canadians in Florida still I imagine, so it is not too far-fetched that I am among you. I'm the GLOBE Cloud Science PI and welcome your questions on clouds!

[ JohnJacoby/CentralMiddleSchool/US - 14 - 16:35:02 ]
wazzup everybody

[ adriana/shawniganlakeschool/CA - 15 - 16:35:10 ]
hello everyone!!

[ Danielle/ShawniganLakeSchool/CA - 16 - 16:35:13 ]
hey a!

[ jazmin/shawniganlakeschool/CA - 17 - 16:35:16 ]
this sux

[ gabby/shawniganlake/CA - 18 - 16:35:17 ]
is any one not from shaw

[ JuLiE/ShawniganLakeSchool/CA - 19 - 16:35:24 ]
hey sup??

[ Rob_ot3SLS - 20 - 16:35:28 ]
Hi Ken.

[ bartholomue/shawniganlake/CA - 21 - 16:35:32 ]
if you fell through a rain cloud would you get wet?

[ JohnJacoby/CentralMiddleSchool/US - 22 - 16:35:35 ]
holla

[ Sean/SHAWNIGANLAKESCHOOL/CA - 23 - 16:35:44 ]
MMKAY....

[ CarlosFrench/BostonSouthEndPublicLibrary/US - 24 - 16:35:45 ]
My students and I hav

[ MitchellZuck/CentralMiddleSchool/US - 25 - 16:35:45 ]
WASSSUP

[ DavidHacker/CentralMiddleSchool/US - 26 - 16:35:59 ]
Hi my name is David Hacker. I am from Waterloo, Iowa in the U.S.A. at Central Middle School.

[ maRiNa/shawshank/CA - 27 - 16:36:00 ]
hey julie

[ maRiNa/shawshank/CA - 28 - 16:36:00 ]
hey julie

[ JacobAnderson/CentralMiddleSchool/US - 29 - 16:36:01 ]
hello everybody

[ Paul_Ruscher/FSU - 30 - 16:36:04 ]
RE: [maRiNa/shawshank/CA] hey y'all eh, what is happenin' eh. um, how is a cloud formed and what is it made of eh
Can anyone help out marina with her question about how clouds are formed and what they are made of?

[ jimbob/bostonpublic - 31 - 16:36:05 ]
danielle

[ JoeandBrennan/FersonCreek/US - 34 - 16:36:12 ]
hello

[ JohnJacoby/CentralMiddleSchool/US - 35 - 16:36:14 ]
why are cumulus clouds dark

[ JuLiE/ShawniganLakeSchool/CA - 36 - 16:36:15 ]
YES U WILL GET WET!!!...actually..i'm not sure

[ TARIATALBERT/CENTRALMIDDLESCHOOL/US - 37 - 16:36:15 ]
HI HOW ARE YOU!

[ ElvisAlicic/CentralMiddleSchool/US - 38 - 16:36:18 ]
Hi my name is Elvis Alicic. I'm from Waterloo Iowa ans I go to Central Middle school

[ TommyElder/CentralMiddleSchool/US - 39 - 16:36:24 ]
Hello my name is Tommy Elder and I am from Waterloo Iowa in the United States. I go to Central Middle School.

[ Devin/ShawniganLakeSchool/CA - 40 - 16:36:26 ]
Mr. Huffam, My name is Devin Chen, here is my question: Can a cloud from Nirth Amarica "FLY" ti Asia or Europe ?

[ 3RDGRADEMRSADAMS/HOLYREDEEMERCATHOLICSCHOOL/US - 41 - 16:36:26 ]
Do you like watching and seeing clouds and why?

[ Andrew/EnvironmentCanada - 42 - 16:36:31 ]
Hello from Edmonton, Alberta

[ KenanSarkic/CentralMiddleSchool/US - 43 - 16:36:36 ]
Hi my name is Kenan Sarkic. I'm from Waterloo, Iowa. I go to Central Middle School

[ DENNISDEVORE/CENTRALMIDDLESCHOOL/US - 44 - 16:36:43 ]
HI MY NAME IS DENNIS DEVORE AND I HAVE A GUESTION FOR YOU WHAT MAKES NIMBOS CLOUDS BLACK.

[ KenanSarkic/CentralMiddleSchool/US - 46 - 16:36:47 ]
Hi my name is Kenan Sarkic. I'm from Waterloo, Iowa. I go to Central Middle School

[ MattWakefield/CentralMiddleSchool/US - 47 - 16:36:49 ]
Hey all we're from Waterloo Iowa

[ ALEX/SHAWNIGANLAKESCHOOL/CA - 48 - 16:36:54 ]
HELLO THERE

[ KyleCorson/Centralmiddleschool/US - 49 - 16:36:56 ]
hi my name is Kyle corson and I am from waterloo Iowa from the u.s.

[ Sean/SHAWNIGANLAKESCHOOL/CA - 50 - 16:36:56 ]
Who here is a metorologist?

[ DianeDuncan/FersonCreekElementarySchool/US - 52 - 16:37:12 ]
Hello, I'm Diane Duncan from Ferson Creek School in St. Charles, Il. My class of 4th grade students study the weather all 365 day of the year! They will be sending you questions that interest them. Thanks for all the time you spend on this project.

[ Paul_Ruscher/FSU - 53 - 16:37:13 ]
RE: [bartholomue/shawniganlake/CA] if you fell through a rain cloud would you get wet?
I think it is safe to say that you would get soaked! It would be similar to riding a bike in fog or driving a car through fog - water would accumulate on any object that passes through it.

[ Sung/ShawmiganLakeschool/CA - 54 - 16:37:19 ]
Hello, i am sung and I want to talk about lots of stuff, i hop you can teach me lots of things...

[ adriana/shawniganlakeschool/CA - 55 - 16:37:20 ]
Mr. Ruscher i have a question for you how much water do you think a cloud hold before it starts raining??

[ Mia/ShawniganLakeSchool/CA - 56 - 16:37:22 ]
We see all types of clouds. are there places on earth where certain cloud types are rare

[ JasonMills/CentralMiddleSchool/US - 57 - 16:37:23 ]
Hi my name is Jason Mills and I want to ask you a quastion.What is the biggest cloud you have seen

[ ALEX/SHAWNIGANLAKESCHOOL/CA - 58 - 16:37:33 ]
I have many questions to ask you for one why are clouds call clouds

[ JacobAnderson/CentralMiddleSchool/US - 59 - 16:37:43 ]
Hey I'm Jacob William Anderson from Central middle school in Waterloo Iowa

[ maRiNa/shawshank/CA - 60 - 16:37:45 ]
hi mr, ruscher, how is a cloud formed and what is it made of, i love adrianna

[ KyleCorson/Centralmiddleschool/US - 61 - 16:37:47 ]
how is everyone today?

[ KEN/ShawniganLakeSchool/CA - 62 - 16:37:47 ]
Can u make man made clouds?

[ Bart/shawniganlakeschool/CA - 63 - 16:37:52 ]
Mr. Ruscher I have a question for you!! My question is; Besides the providing rain, are clouds good for the Earth in ather ways???

[ James/SHAWNIGANLAKESCHOOL/CA - 64 - 16:37:52 ]
HI

[ MattWakefield/CentralMiddleSchool/US - 65 - 16:38:03 ]
What determines what kind of cloud it is?

[ JohnJacoby/CentralMiddleSchool/US - 66 - 16:38:09 ]
it depends on what kind of cloud

[ Paul_Ruscher/FSU - 67 - 16:38:17 ]
RE: [3RDGRADEMRSADAMS/HOLYREDEEMERCATHOLICSCHOOL/US] Do you like watching and seeing clouds and why?
We can learn so much by watching the clouds form...we see how the atmosphere is changing by watching the clouds - we see where the air becomes humid enough, and they also tell us where air is rising, very important for early signs as to when or where it might rain or snow.

[ Wayne/TomUSANOAA/NCDC - 68 - 16:38:19 ]
Hi everone from the sunny city Asheville in the mountains of the state of North Carolina in USA.

[ DENNISDEVORE/CENTRALMIDDLESCHOOL/US - 69 - 16:38:19 ]
HEY MITCH THIS IS COOL

[ FIONA/ShawniganLakeSchool/CA - 70 - 16:38:24 ]
On a scale of one to ten where does climate change fit into our Global Enviormental Concerns?

[ ALEX/SHAWNIGANLAKESCHOOL/CA - 73 - 16:38:32 ]
Is it possible to create man made clouds without natural resources

[ CarlosFrench/BostonSouthEndPublicLibrary/US - 74 - 16:38:40 ]
Hello everyone, we have a few questions from Boston...How do we classify clouds in areas that are around or above 2000 meters? My students asked me while I was in Santa Fe NM, which is just about 2000 m, how I could see all the cloud types?

[ Devin/ShawniganLakeSchool/CA - 75 - 16:38:46 ]
Mr.Huffam, What is clouds?

[ Paul_Ruscher/FSU - 76 - 16:38:49 ]
RE: [Sean/SHAWNIGANLAKESCHOOL/CA] Who here is a metorologist?
I am a meteorologist, I teach meteorology at Florida State University.

[ Sung/ShawmiganLakeschool/CA - 78 - 16:38:50 ]
My question is if a great amount of kool-laid or other sweet water is evaporated, can clouds have taste?

[ KyleCorson/Centralmiddleschool/US - 79 - 16:38:51 ]
hey gabby

[ TommyElder/CentralMiddleSchool/US - 80 - 16:38:54 ]
How are you all today?

[ JuLiE/ShawniganLakeSchool/CA - 82 - 16:38:59 ]
Ms Lang, I'm Julie i was wondering if there's different amount of oxygen in differnt kinds of clouds ?????

[ TARIATALBERT/CENTRALMIDDLESCHOOL/US - 83 - 16:39:05 ]
IS THERE REALLY ANY REASON WHY CLOUDS ARE THERE.(IN THE SKY)

[ wendycampbell/calgaryboardofeducation/CA - 84 - 16:39:07 ]
GOOD MORNING FROM SUNNY CALGARY

[ TerriLang/MountainWeatherCentre - 85 - 16:39:20 ]
Logging in from sunny and warm Kelowna, BC, Canada

[ GeoffStrong/CloudThunderstormexpert - 86 - 16:39:25 ]
Hello, sorry to be a bit late signing on here. My expertise is in 'clouds', especially summer comnvective clouds and atmospheric processes.

[ DavidHacker/CentralMiddleSchool/US - 88 - 16:39:35 ]
What makes clouds puffy Andrew.

[ KEN/ShawniganLakeSchool/CA - 89 - 16:39:41 ]
can u make man made clouds?

[ TommyElder/CentralMiddleSchool/US - 90 - 16:39:42 ]
Whats up Paul Ruscher

[ jazmin/shawniganlakeschool/CA - 91 - 16:39:46 ]
I have a question... can clouds be used to predict the weather?

[ gabby/shawniganlake/CA - 92 - 16:39:51 ]
hi kiel

[ maRiNa/shawshank/CA - 93 - 16:39:56 ]
mr. strong what is atmospheric pressure

[ JohnJacoby/CentralMiddleSchool/US - 94 - 16:40:02 ]
Hey kyle everyone is good today

[ bartholomue/shawniganlake/CA - 95 - 16:40:06 ]

[ JuLiE/ShawniganLakeSchool/CA - 96 - 16:40:12 ]
Ms Lang, I'm Julie i was wondering if there's different amount of oxygen in differnt kinds of clouds?

[ Sung/ShawmiganLakeschool/CA - 97 - 16:40:17 ]
My question is if a great amount of kool-laid or other sweet water is evaporated, can clouds have taste? And I am asking to Mr. Spencel

[ Danielle/ShawniganLakeSchool/CA - 98 - 16:40:18 ]
hey can you tell when or what time of day will the weather change by observating cloud types or cloud cover a!

[ ALEX/SHAWNIGANLAKESCHOOL/CA - 99 - 16:40:21 ]
why are clouds have diffrent apearence

[ LeahAshleySarah/FersonCreek/Unknown - 100 - 16:40:24 ]
Peter Huffman Hello I'm leah Klacko from Illinois. What type of equipment do you use?

[ Sean/SHAWNIGANLAKESCHOOL/CA - 101 - 16:40:25 ]
so if clouds contain tons of water and ice... why do they stay in the air?

[ Wayne/TomUSANOAA/NCDC - 102 - 16:40:27 ]
RE: [Paul_Ruscher/FSU] I am a meteorologist, I teach meteorology at Florida State University.
Two meteorologists/climatologists from USA's National Oceanic and Atmopsheric Administration

[ Yosung/ShawniganLakeSchool/KR - 105 - 16:40:38 ]
Hey, I'm Jason and Arman

[ Andrew/EnvironmentCanada - 106 - 16:40:48 ]
I am a meteorologist, working in Edmonton at the Arctic Weather Centre - we forecast for all of the Northwest Territories and Nunavut in northern Canada.

[ Paul_Ruscher/FSU - 107 - 16:40:49 ]
RE: [adriana/shawniganlakeschool/CA] Mr. Ruscher i have a question for you how much water do you think a cloud hold before it starts raining??
A cloud can form as water vapor condenses, and the maximum amount is determined mostly by the temperature of the cloud; for "warmer" clouds, we get more vapor to condense. Precipitation will only occur after a time when drops grow large enough, or we can get ice crystals to form; when ice crystals form it sometimes starts what we might call a chain reaction, and even summer thunderstorms have raging blizzards in them several kilometers above the surface!

[ JoeandBrennan/FersonCreek/US - 108 - 16:40:49 ]
Dear ED and Jerrine If there is a rainbow in one place and a tornado in another what one would you go after .

[ Bob/ShawniganLakeShcool/CA - 109 - 16:40:52 ]
Hi

[ gabby/shawniganlake/CA - 111 - 16:41:02 ]
are cloads made of rain

[ JuLiE/ShawniganLakeSchool/CA - 112 - 16:41:05 ]
Ms Lang, I'm Julie i was wondering if there's different amount of oxygen in differnt kinds of clouds?

[ TommyElder/CentralMiddleSchool/US - 113 - 16:41:07 ]
How are

[ KyleCorson/Centralmiddleschool/US - 114 - 16:41:09 ]
how far can you get a good estimate of the weather

[ MattWakefield/CentralMiddleSchool/US - 115 - 16:41:11 ]
Are we enjoying the current weather?

[ KenanSarkic/CentralMiddleSchool/US - 116 - 16:41:21 ]
Dr.Paul Ruscher how many different clouds did you see at the the most in the sky.

[ JacobAnderson/CentralMiddleSchool/US - 117 - 16:41:24 ]
How do you determine how high the clouds are in the sky?

[ jazmin/shawniganlakeschool/CA - 118 - 16:41:26 ]
Hey TerryLang

[ Patrick/ShawniganLakeschool/CA - 119 - 16:41:30 ]
HI

[ JohnJacoby/CentralMiddleSchool/US - 120 - 16:41:35 ]
I was answering Marias question about what clouds are made of Matt

[ Brianna/sls/GR - 121 - 16:41:37 ]
Is Mr. Spence here???

[ Sean/SHAWNIGANLAKESCHOOL/CA - 122 - 16:41:43 ]
that question goes out to Mr. Giles

[ BiBi/Shawnigan/CA - 123 - 16:41:43 ]
CAN U MAKE MAN MADE CLOUDS?

[ Taylor/ShawniganLakeShcool/CA - 124 - 16:41:46 ]

[ JOE/Carisbrooke/CA - 125 - 16:41:53 ]
do clouds weigh anything?

[ TheBuffalo/ShawniganLakeSchool/SriLanka - 127 - 16:42:09 ]
what are clowds made of

[ Wayne/TomUSANOAA/NCDC - 128 - 16:42:09 ]
RE: [bartholomue/shawniganlake/CA] if you fell through a rain cloud would you get wet?
Depends on where you were in the cloud. All rain starts out as ice where the temperature is below 0 and as it falls into warmer air, turns into rain.

[ Caleb/ShawniganLakeSchool/CA - 129 - 16:42:12 ]
Dear Dr. Strong how is it that clouds become either high or low lying determines this factor?

[ DENNISDEVORE/CENTRALMIDDLESCHOOL/US - 131 - 16:42:15 ]
HEY MITCH WHEN ARE WE GOING BACK TO CLASS

[ BiBi/Shawnigan/CA - 132 - 16:42:18 ]
CAN U MAKE MAN MADE CLOUDS?

[ MattNoraAmelia/FersonCreek/US - 133 - 16:42:22 ]
Ms. Lang, how much affect do mountains have on clouds?

[ TARIATALBERT/CENTRALMIDDLESCHOOL/US - 134 - 16:42:22 ]
Why are clouds white and can there be microscopic clou that we can't see?

[ BiBi/Shawnigan/CA - 135 - 16:42:28 ]
CAN U MAKE MAN MADE CLOUDS?

[ DrJesus/shawniganlake/CA - 136 - 16:42:29 ]
are there different colour clouds.

[ Yosung/ShawniganLakeSchool/KR - 137 - 16:42:30 ]
Hello Mr. Huffam

[ jazmin/shawniganlakeschool/CA - 140 - 16:42:33 ]
I'm looking for Mr.Giles

[ JuLiE/ShawniganLakeSchool/CA - 141 - 16:42:35 ]
Ms Lang, I'm Julie i was wondering if there's different amount of oxygen in differnt kinds of clouds ?

[ 3RDGRADEMRSADAMS/HOLYREDEEMERCATHOLICSCHOOL/US - 142 - 16:42:37 ]
Joseph asks: How much and what do YOU know about clouds? Sara asks: why do people see shapes and animals in the clouds?

[ JacobAnderson/CentralMiddleSchool/US - 143 - 16:42:38 ]
why do some storm clouds turn black and some don't?

[ BiBi/Shawnigan/CA - 144 - 16:42:40 ]
CAN U MAKE MAN MADE CLOUDS?

[ Kat/ShawniganLakeSchool/CA - 145 - 16:42:43 ]
How long does it take to become a meteorologist?

[ JohnZSamPSamR/FersonCreek/US - 146 - 16:42:43 ]
Whane Faas Hello I am John, Dear Mr. Faas, I was wondering what is the highest and lowest temperature ever recorded.

[ wendycampbell/calgaryboardofeducation/CA - 147 - 16:42:43 ]
Andrew, how is it possible that dust and sand from Mongoli has ade half way around the world to calgary as oflate?

[ Paul_Ruscher/FSU - 148 - 16:42:46 ]
RE: [Mia/ShawniganLakeSchool/CA] We see all types of clouds. are there places on earth where certain cloud types are rare
That is a good question...when you get down to real specialized clouds, like altocumulus lenticularis (lens-shaped altocumulus clouds, they almost look like flying saucers), then you could say they might be rare, for example here in Florida, where we have no mountains (these require mountains). But really, I can imagine that even cumulonimbus (thunderstorms OR snow showers, etc.) can form just about anywhere on earth.

[ ALEX/SHAWNIGANLAKESCHOOL/CA - 149 - 16:42:47 ]
Mr gills i have a question for you it is possible to create man made clouds withour natural resources

[ GeoffStrong/CloudThunderstormexpert - 150 - 16:42:49 ]
RE: [TARIATALBERT/CENTRALMIDDLESCHOOL/US] IS THERE REALLY ANY REASON WHY CLOUDS ARE THERE.(IN THE SKY)
To answer TARIATALBERT's question above, YES, there certainly are reasons why clouds are there. It is part of nature's way to redistribute water on the earth. Otherwise, you would have the oceans, and you would have dry land (no water), because all water eventually seeks the lowest level (sea level) on earth, and discharges either abiove or below ground towards the ocean.

[ KATHRYNHUSARJENNYMOORE//Unknown - 151 - 16:42:49 ]
HI, MY NAME IS KATHRYN AND I HAVE A QUESTION FOR DR.RUSCHER. DO ALTOCUMULUS, ALTOSTRATUS CLOUDS BRING ANY SPECIAL KIND OF WEATHER?

[ cosmo_girl/ShawniganLakeSchool/CA - 152 - 16:42:52 ]
hi everyone. i'm megan i was wondering for instance, if there was a cloud in B.C and it moved across B.C to Alverta, would one of the clouds that we saw in B.C be seen across the world? or would it just evaporate or change into another cloud

[ JohnJacoby/CentralMiddleSchool/US - 153 - 16:42:52 ]
yes matt i am very much enjoying the weather today

[ BoRi/shawniganLakeSchool/KR - 154 - 16:42:55 ]
WaZuP?

[ jack/centralmiddleschool/us - 155 - 16:43:01 ]
yes jazmin they can

[ Patrick/ShawniganLakeschool/CA - 156 - 16:43:01 ]
HI What is the tighest altitude that A cloud has ever been.

[ EmilyKatherineJordanJamie/FersonCreek/US - 157 - 16:43:03 ]
Dear Ed and Jerrine, Hello I'm Emily from Ferson Creek, I was wondering if it is scary to follow tornados.

[ maRiNa/shawshank/CA - 158 - 16:43:03 ]
could you stand on a cloud and is fog clouds

[ Sung/ShawmiganLakeschool/CA - 159 - 16:43:04 ]
Mr. Spence!!!! If a great amount of sugar water or kool-laid evaporates can clouds have taste?

[ TerriLang/MountainWeatherCentre - 160 - 16:43:08 ]
RE: [JuLiE/ShawniganLakeSchool/CA] Ms Lang, I'm Julie i was wondering if there's different amount of oxygen in differnt kinds of clouds ?????
Julie... as far as I know, there is the same amount of oxygen in each cloud. Clouds are made up of water vapour or very small water droplets. And water is made up of H2O, 2 hydrogen and 1 oxygen molecule. But the bigger the cloud, the more water droplets it contains and thus the more oxygen on the whole!

[ Devin/ShawniganLakeSchool/CA - 161 - 16:43:10 ]
Mr.Huffam, What are clouds make from ?

[ TommyElder/CentralMiddleSchool/US - 162 - 16:43:11 ]
Andrew, how do clouds turn dark colors?

[ gabby/shawniganlake/CA - 163 - 16:43:11 ]
what is the temp of cloads

[ MitchellZuck/CentralMiddleSchool/US - 165 - 16:43:19 ]
Dennis i dont no

[ DENNISDEVORE/CENTRALMIDDLESCHOOL/US - 168 - 16:43:24 ]
MRS.LANG

[ TreyDawg/ShawniganLakeSchool/CA - 169 - 16:43:25 ]
Do clouds move because of the earth's rotation or because of wind? If it is because of wind, what causes wind?

[ Taylor/ShawniganLakeShcool/CA - 170 - 16:43:26 ]
Can clouds affect humidity or the Barometric pressure?

[ ArjenEdandJerrineGLOBEexp - 171 - 16:43:27 ]
RE: [JohnJacoby/CentralMiddleSchool/US] why are cumulus clouds dark
The bases of cumulus clouds are dark because the sunshine coming from above is blocked by all the tiny droplets in the cloud. When clouds are young (fairly new) they are composed of many, many tiny droplets. As they become older there are fewer droplets to block the light so older clouds are not as dark. So young, growing cumulus clouds have dark bases even though the clouds are small.

[ Brianna/sls/GR - 172 - 16:43:30 ]
Mr. Spence, how do the clouds differ in the arctic rather in the southern pole??

[ JuLiE/ShawniganLakeSchool/CA - 173 - 16:43:30 ]
Ms Lang!! I'm Julie i was wondering if there's different amount of oxygen in differnt kinds of clouds ?

[ Chris_Spence/EnvironmentCanada - 174 - 16:43:31 ]
Hello from Yellowknife way up in the Northwest Territories. Its a nice spring day here (-5°C or 22°F) and mostly overcast.

[ JuLiE/ShawniganLakeSchool/CA - 175 - 16:43:31 ]
Ms Lang!! I'm Julie i was wondering if there's different amount of oxygen in differnt kinds of clouds ?

[ JuLiE/ShawniganLakeSchool/CA - 176 - 16:43:33 ]
Ms Lang!! I'm Julie i was wondering if there's different amount of oxygen in differnt kinds of clouds ?

[ BiBi/Shawnigan/CA - 177 - 16:43:34 ]
CAN U MAKE MAN MADE CLOUDS?

[ JoeandBrennan/FersonCreek/US - 178 - 16:43:49 ]
Hey Wayne what is the most dangerous cloud u have ever seen.

[ Patrick/ShawniganLakeschool/CA - 179 - 16:44:04 ]
HI What is the highest altitude that a cloud has everbeen

[ TommyElder/CentralMiddleSchool/US - 180 - 16:44:05 ]
Whats up Kyle

[ DavidHacker/CentralMiddleSchool/US - 181 - 16:44:10 ]
Can Cirrus clouds be overcast Paul_Rausher

[ DavidHacker/CentralMiddleSchool/US - 182 - 16:44:10 ]
Can Cirrus clouds be overcast Paul_Rausher

[ DavidHacker/CentralMiddleSchool/US - 183 - 16:44:10 ]
Can Cirrus clouds be overcast Paul_Rausher

[ Sean/SHAWNIGANLAKESCHOOL/CA - 184 - 16:44:10 ]
Clouds are huge and contain lots of water

[ Danielle/ShawniganLakeSchool/CA - 185 - 16:44:11 ]
hey mitch what do u know about clouds a!

[ YOKOZUNA/SHAWNIGANLAKESCHOOL/CA - 186 - 16:44:12 ]
HEY

[ ALEX/SHAWNIGANLAKESCHOOL/CA - 187 - 16:44:15 ]
mr giles is it possible to create man made clouds with out natural resources

[ BiBi/Shawnigan/CA - 188 - 16:44:16 ]
CAN U MAKE MAN MADE CLOUDS?

[ Andrew/EnvironmentCanada - 189 - 16:44:27 ]
RE: [Sean/SHAWNIGANLAKESCHOOL/CA] that question goes out to Mr. Giles
A cloud is made up of very small ice crystals and water droplets, which are always falling due to gravity - but at slow speeds. Luckily for us, all of the mass is not concentrated into one droplet or crystal.

[ Sung/ShawmiganLakeschool/CA - 190 - 16:44:29 ]
Mr. Spence!!!! If a great amount of sugar water or kool-laid evaporates can clouds have taste?

[ adriana/shawniganlakeschool/CA - 191 - 16:44:35 ]
thank you Mr. ruscher coul you answer another question for me? can clouds damage our planet in any way?

[ Mia/ShawniganLakeSchool/CA - 192 - 16:44:39 ]
why are clouds white

[ DENNISDEVORE/CENTRALMIDDLESCHOOL/US - 193 - 16:44:39 ]
HEY JASON HOW ARE YOU

[ TheBuffalo/ShawniganLakeSchool/SriLanka - 194 - 16:44:40 ]
mr spence, why does moisture gather into coulds

[ TerriLang/MountainWeatherCentre - 195 - 16:44:50 ]
RE: [JacobAnderson/CentralMiddleSchool/US] why do some storm clouds turn black and some don't?
Jacob.. the thicker a cloud is, the blacker it appears underneath.

[ MichaelJaclynAshley/FersonCreek/US - 197 - 16:44:58 ]
Hello, my name is Jaclyn. I have a question for Chris Spense. When you look at the tree rings how can you tell what was the past climate?

[ Bart/shawniganlakeschool/CA - 198 - 16:45:00 ]
Mr. Ruscher: Besides that clouds provide rain, are clouds good for the Earth in other ways??

[ Jacqueline/Shawniganlakeschool/CA - 201 - 16:45:14 ]
Hi Mr.Apence I know that clouds can move very fast, but how? and how fast do they go?

[ Paul_Ruscher/FSU - 202 - 16:45:23 ]
RE: [maRiNa/shawshank/CA] could you stand on a cloud and is fog clouds
No clouds are very light, you might think that they float but they really don't; since air is rising, clouds appear to be held up; but water vapor is constantly condensing and cloud drops (water in liquid form) is constantly evaporating.

[ BiBi/Shawnigan/CA - 203 - 16:45:27 ]
How does acid rain form

[ EricTedandLoren/FersonCreekElementry/US - 204 - 16:45:27 ]
Hello this is Eric & Ted Dr. Geoff Strong How does wether balloons send information?

[ ruek/ShawniganLakeSchool/SriLanka - 205 - 16:45:28 ]
are there male or female clouds

[ Brianna/sls/GR - 206 - 16:45:32 ]
HI Mr. spence, where do you work in yellowknife??? what is your job there???

[ Caleb/ShawniganLakeSchool/CA - 207 - 16:45:32 ]
How high Can clouds get

[ JohnJacoby/CentralMiddleSchool/US - 208 - 16:45:35 ]
Why are nimbocumulus clouds dark

[ jazmin/shawniganlakeschool/CA - 209 - 16:45:41 ]
can you use clouds to predict the weather?

[ Francis/shawniganlake/CA - 210 - 16:45:47 ]
if clouds are full of water why are they all fluffy and light.

[ maRiNa/shawshank/CA - 211 - 16:45:59 ]
what is a cloud

[ Andrew/EnvironmentCanada - 212 - 16:46:04 ]
Are there any students from the NWT or Nunavut online?

[ BoRi/shawniganLakeSchool/KR - 213 - 16:46:08 ]
Mr. Hoffan does clouds do anything other than give us rain?

[ BiBi/Shawnigan/CA - 214 - 16:46:09 ]
How does acid rain form?

[ gabby/shawniganlake/CA - 216 - 16:46:12 ]
can osme one plaese answer my question

[ TommyElder/CentralMiddleSchool/US - 218 - 16:46:28 ]
When you drive through a cloud or fog why do icycles form on the front of your car?

[ JuLiE/ShawniganLakeSchool/CA - 219 - 16:46:31 ]
Ms Lang Thankyou for answering my Question Wouldnt there be less ozygen in some because there's more H2o though??

[ BiBi/Shawnigan/CA - 220 - 16:46:40 ]
Vancouver Island

[ MitchellZuck/CentralMiddleSchool/US - 221 - 16:46:40 ]
Danielle,there in the sky

[ MitchellZuck/CentralMiddleSchool/US - 222 - 16:46:40 ]
Danielle,there in the sky

[ LeahAshleySarah/FersonCreek/Unknown - 223 - 16:46:41 ]
Ed,and Jerrine. I'm Ashley Fosse How close did you get to a tornado?

[ Caleb/ShawniganLakeSchool/CA - 224 - 16:46:41 ]
can clouds ever change colour?from sam

[ Cirrus/ShawniganLake/CA - 226 - 16:46:43 ]
What causes an anvil to develop at the top of a thunferhead?

[ ALEX/SHAWNIGANLAKESCHOOL/CA - 227 - 16:46:47 ]
Mr giles how solid can a cloud be.

[ KyleCorson/Centralmiddleschool/US - 228 - 16:46:49 ]
wayne tom how far in advance can you predict weather

[ Wayne/TomUSANOAA/NCDC - 229 - 16:46:51 ]
RE: [BiBi/Shawnigan/CA] CAN U MAKE MAN MADE CLOUDS?
There has been some success in making clouds. This is done by putting hygroscopic particles (water attracking) in the air. The water vapor then condenses on the particles eventually making clouds and in some cases precipitation. There are many legal questions about making clouds/rain...if you make it rain over site A, have you in some way made it NOT rain over site B. End result...a law suit.

[ Paul_Ruscher/FSU - 230 - 16:46:56 ]
RE: [KATHRYNHUSARJENNYMOORE//Unknown] HI, MY NAME IS KATHRYN AND I HAVE A QUESTION FOR DR.RUSCHER. DO ALTOCUMULUS, ALTOSTRATUS CLOUDS BRING ANY SPECIAL KIND OF WEATHER?
Altocumulus clouds often tell us that the atmosphere is becoming more unstable at altitudes of 2-6 kilometers, which is very important. This might be an indicator that, if it is a warm day, showers or thunderstorms may come later. Altostratus clouds often precede nimbostratus, which may form from them, if conditions are right. They may indicate a forecast of steady rain or snow coming soon.

[ Yosung/ShawniganLakeSchool/KR - 231 - 16:47:06 ]
If you fall through clouds will you decrease in speed or will you fall as if you fell through air?

[ JoeandBrennan/FersonCreek/US - 232 - 16:47:06 ]
Dear Jerrine have you ever been shocked by lighting or would you die?

[ MichaelJaclynAshley/FersonCreek/US - 234 - 16:47:12 ]
Hello, my name is Jaclyn. I have a question for Chris Spense. When you look at the tree rings how can you tell what was the past climate?

[ ITSMEIMBACK/CENTRALMIDDLESCHOOL/US - 236 - 16:47:18 ]
WHAT MAKES RAIN

[ JasonMills/CentralMiddleSchool/US - 237 - 16:47:19 ]
Hey guys I have a question for Wayne.What is the tallest cloud you ever seen

[ TerriLang/MountainWeatherCentre - 238 - 16:47:20 ]
RE: [Mia/ShawniganLakeSchool/CA] why are clouds white
Mia ... clouds appear white because they reflect the sun's light which appears white when it comes through the atmosphere. The sky is blue because the particles in the atmosphere absorb the blue colour coming from the sun's light.

[ Brianna/sls/GR - 239 - 16:47:21 ]
HI ANDREW FROM ENVIRONMENT CANADA, I AM ANSWERING YOUR QUESTION-YES I LIVE IN YELLOWKNIFE!!!

[ Sara/ShawniganLakeSchool/CA - 241 - 16:47:26 ]
Mr.Huffam When birds are flying can heavy clouds affect the air pressure on them and make it harder or harm them,or make it easier?

[ Sean/SHAWNIGANLAKESCHOOL/CA - 242 - 16:47:30 ]
why don't huge clouds dump their water after the vapor liquifies again? (For Mr.Giles)

[ JohnJacoby/CentralMiddleSchool/US - 243 - 16:47:36 ]
wassup elvis

[ MattWakefield/CentralMiddleSchool/US - 244 - 16:47:37 ]
Hello everyone from Waterloo, IA!!!!

[ Sung/ShawmiganLakeschool/CA - 245 - 16:47:45 ]
Mr. Spence, does clouds have taste in them ig a great amount of sugar water is evaporated?

[ ALEX/SHAWNIGANLAKESCHOOL/CA - 246 - 16:47:46 ]
Why do clouds float

[ TARIATALBERT/CENTRALMIDDLESCHOOL/US - 248 - 16:48:08 ]
Are there any other clouds that are in the sky that you guys can't determine what the weather is?

[ KATHRYNHUSARJENNYMOORE//Unknown - 249 - 16:48:15 ]
HI, MY NAME IS KATHRYN AND I am from Ferson Creek Elemenrty School and IHAVE A QUESTION FOR DR.RUSCHER. DO ALTOCUMULUS, ALTOSTRATUS CLOUDS BRING ANY SPECIAL KIND OF WEATHER

[ BiBi/Shawnigan/CA - 250 - 16:48:18 ]
Can clouds be solid

[ Paul_Ruscher/FSU - 251 - 16:48:19 ]
RE: [Bart/shawniganlakeschool/CA] Mr. Ruscher: Besides that clouds provide rain, are clouds good for the Earth in other ways??
Clouds help to moderate the climate by shielding the earth from too much solar radiation during the daytime, and they prevent the earth from cooling too much at night. Here in Tallahassee today, we are just getting some clouds to form, otherwise it has been a beautiful sunny day, but cooler than the previous few days because we had a cold front pass yesterday.

[ jadimer/switzerland - 252 - 16:48:19 ]
danielle, Have you ever seen a cloud?

[ Andrew/EnvironmentCanada - 253 - 16:48:27 ]
RE: [gabby/shawniganlake/CA] what is the temp of cloads
Temperature of clouds - it all depends on the temperature of the air that the cloud is in. There is no "one" temperature of a cloud.

[ Cirrus/ShawniganLake/CA - 254 - 16:48:27 ]
Is there a difference between low clouds and fog?

[ GeoffStrong/CloudThunderstormexpert - 255 - 16:48:36 ]
RE: [3RDGRADEMRSADAMS/HOLYREDEEMERCATHOLICSCHOOL/US] Joseph asks: How much and what do YOU know about clouds? Sara asks: why do people see shapes and animals in the clouds?
Joseph, we know an awful lot about clouds, wht they form, how they form, how much water may be in them. We are still struggling a little with trying to predict them correctly (such as why we get a severe thunderstorm rather than just a simple rainshower), but forecasters are doing a good job at that too (abolut 80% correct), and getting better through research. Sara, I really like your question about 'shapes and animals in the clouds'. I see them often too, and it's fun picking out shapes like that. I guess its just letting your imagination go, and nature does the rest. The shapes, however, are purely random - or maybe nature likes to place tricks on us?

[ BiBi/Shawnigan/CA - 256 - 16:48:47 ]
Can clouds be solid

[ JasonMills/CentralMiddleSchool/US - 257 - 16:49:05 ]
How do you see how long a cloud is

[ TerriLang/MountainWeatherCentre - 258 - 16:49:15 ]
RE: [JuLiE/ShawniganLakeSchool/CA] Ms Lang Thankyou for answering my Question Wouldnt there be less ozygen in some because there's more H2o though??
Julie.. there are 2 hydrogen and 1 oxygen molecules in a cloud particle. Thus twice as much hydrogen then oxygen!

[ YOKOZUNA/SHAWNIGANLAKESCHOOL/CA - 261 - 16:49:33 ]
how large can a cloud get in area?

[ JohnJacoby/CentralMiddleSchool/US - 262 - 16:49:39 ]
How is the weather in canada different from the weather in the US at specific points in time?

[ Caleb/ShawniganLakeSchool/CA - 263 - 16:49:43 ]
if you poured juice on a cloud would it change to the colour of the juice

[ Mia/ShawniganLakeSchool/CA - 264 - 16:49:46 ]
Is there a direction that clouds move

[ TommyElder/CentralMiddleSchool/US - 265 - 16:49:46 ]
WHY DO CLOUDS TURN DIFFERENT COLORS?

[ Mia/ShawniganLakeSchool/CA - 268 - 16:49:50 ]
Is there a direction that clouds move

[ BiBi/Shawnigan/CA - 269 - 16:49:53 ]
Can Clouds be solid?

[ Chris_Spence/EnvironmentCanada - 270 - 16:49:54 ]
RE: [Brianna/sls/GR] Mr. Spence, how do the clouds differ in the arctic rather in the southern pole??
Brianna, To my knowledge, they don't differ that much. Yellowknife is in the sub arctic so I imagine we get more cumulus clouds than at extremely high latitudes. We can get some nasty thunderstorms here, which are pretty rare farther north or near the south pole.

[ JoeandBrennan/FersonCreek/US - 272 - 16:50:00 ]
Hi Paul what is the most humid place you have ever been in and how humid was it?

[ ALEX/SHAWNIGANLAKESCHOOL/CA - 273 - 16:50:15 ]
Mr giles are you there please answer my questions please

[ Pat/GLOBEHelpDesk - 274 - 16:50:15 ]
Some GLOBE students in Italy sent some questions they'd like to have answered. They can't join the chat because of the time difference. They would like to know: Who proposed the cloud classification system we use? Why do we classify them? Can they also be classified according to their weight?

[ Andrew/EnvironmentCanada - 275 - 16:50:18 ]
RE: [ALEX/SHAWNIGANLAKESCHOOL/CA] Mr giles how solid can a cloud be.
Living on Vancouver Island, you see lots of fog - fog is a cloud that is on the ground - and you can walk through it. So a cloud is not solid, but is composed of millions of water droplets.

[ Paul_Ruscher/FSU - 276 - 16:50:28 ]
RE: [Cirrus/ShawniganLake/CA] What causes an anvil to develop at the top of a thunferhead?
When the updraft in a thunderstorm (cumulonimbus) reaches the top of the troposphere, at altitudes of about 10-15 kilometers above the surface, air reaches what we call the tropopause, which is very difficult to "punch through" - the stratosphere is very stable and air can't rise into it very easily. So the air rising in a thunderstorm spreads out into an anvil.

[ JohnJacoby/CentralMiddleSchool/US - 277 - 16:50:33 ]
Any of the doctors that know the answer can answer my question

[ MattNoraAmelia/FersonCreek/US - 279 - 16:50:44 ]
Dr.Geoff Strong, do thunder and lighting do anything to help the Earth? What makes thunder and lightning?

[ jazmin/shawniganlakeschool/CA - 280 - 16:50:57 ]
whose TG?

[ MitchellZuck/CentralMiddleSchool/US - 281 - 16:50:59 ]
How is acid rain made<

[ Danielle/ShawniganLakeSchool/CA - 282 - 16:50:59 ]
i know that they are in the sky but is ther differnt amounts of oxygen in different clouds a MITCH!!!!

[ paul/ShawnigawnLake/CA - 283 - 16:51:00 ]
Ms. Lang I'm Paul, does phisical land features afect clouds

[ KenanSarkic/CentralMiddleSchool/US - 284 - 16:51:01 ]
Arjen and Jerrine Verkaik can you tell me what snowqualls are?

[ Paul_Ruscher/FSU - 285 - 16:51:03 ]
RE: [BiBi/Shawnigan/CA] Can clouds be solid
Clouds can be solid, they can be made of ice, too! But probably not solid in the sense you mean it; you could still fly through them!

[ TARIATALBERT/CENTRALMIDDLESCHOOL/US - 286 - 16:51:18 ]
When the season changes does that change what happens to clouds?In the winter time I look up and I see no clouds,why is that?

[ EmilyKatherineJordanJamie/FersonCreek/US - 287 - 16:51:22 ]
Dear Dr. Paul Rusher, Hello Dr. Rusher, what is it like doing globe! I'm am Jordan D. from Ferson Creek.

[ TerriLang/MountainWeatherCentre - 288 - 16:51:31 ]
RE: [Sara/ShawniganLakeSchool/CA] Mr.Huffam When birds are flying can heavy clouds affect the air pressure on them and make it harder or harm them,or make it easier?
Sara... there is a piece of weather folklore that say birds fly low before a storm. It is assumed that the insects they eat are flying lower because of the increased humidity before a storm. The falling air pressure should not affect them too much. However, my brother the ornithologist tells me that some birds migrate along cold fronts to take advantage of the strong winds.

[ haruki/shawnigan/CA - 289 - 16:51:31 ]
whats the difference between different kinds of clouds?

[ BaronOfTheBeef/ShawniganLakeSchool/PIGFATLAND - 290 - 16:51:31 ]
what is a cloud made of

[ LeahAshleySarah/FersonCreek/Unknown - 291 - 16:51:34 ]
Ed, and Jerrine Hello, I'm Sarah Dittmer From St . Charles. How can you follow rainbows?

[ JohnJacoby/CentralMiddleSchool/US - 292 - 16:51:38 ]
wassup Mitch and everyone else in waterloo that's on here

[ Paul_Ruscher/FSU - 293 - 16:51:48 ]
RE: [TARIATALBERT/CENTRALMIDDLESCHOOL/US] Are there any other clouds that are in the sky that you guys can't determine what the weather is?
Cloud types always tell us something about the weather, and cloud cover does too. Stratocumulus is sometimes kind of boring...

[ Wayne/TomUSANOAA/NCDC - 294 - 16:51:59 ]
RE: [KyleCorson/Centralmiddleschool/US] wayne tom how far in advance can you predict weather
We are more accurate with shorter range forecasts and less accurate with longer ones. With computer models and improved observations (satellite, radar), we are making progress in longer range forecasts (out to 10 days). Some Global Circulation Models are giving some favorable results with seasonal forecasts. We have surface observations every couple of hundred miles, and balloon launches for upper atmopshere measurements(every 500 miles or so) so there is alot of space in between those measurements for the nature/atmospheric changes. Satellite and radar are the biggest advances we have seen over the last 25 years.

[ PeterHardyfromPanghere - 295 - 16:52:02 ]
I have an inuit expert on traditional knowledge on line from the arctic.

[ JohnZSamPSamR/FersonCreek/US - 296 - 16:52:02 ]
Petter Hardy, Hello my name is Sam.R, How does the climate turn from hot to cold?

[ CarlosFrench/BostonSouthEndPublicLibrary/US - 297 - 16:52:03 ]
Question for Andrew on entering our GLOBE data in the new Atmosphere protocol: Why don’t we enter stratus when it’s foggy out? Also at what visibility do we use obscured when entering our data?

[ Yosung/ShawniganLakeSchool/KR - 298 - 16:52:03 ]
Can Mr.Huffam reply me back if you get this!

[ ArjenEdandJerrineGLOBEexp - 299 - 16:52:04 ]
RE: [jazmin/shawniganlakeschool/CA] I have a question... can clouds be used to predict the weather?
Clouds are great weather predictors. They show us which way the wind is blowing at different heights in the atmosphere. Because the wind is usually stronger high up, high clouds blow out far ahead of an approaching weather system, so they are the early warning signs for a change in the weather. On a summer day altocumulus clouds will bubble and gradually become larger, indicating that a storm may develop later in the day. If you spend enough time watching clouds, learning how they behave and move, you can become your own weather forcaster.

[ JasonMills/CentralMiddleSchool/US - 300 - 16:52:08 ]
What made you name the clouds what you named

[ jadimer/switzerland - 301 - 16:52:12 ]
danielle, are you in canada, in an igloo

[ ALEX/SHAWNIGANLAKESCHOOL/CA - 302 - 16:52:13 ]
Andrew can you tell me if it is possible to make a man made clouds withour natural resources.

[ carter/njmacpherson/CA - 303 - 16:52:15 ]
hello everybody this is carter from nj in yellowknife

[ GeoffStrong/CloudThunderstormexpert - 304 - 16:52:18 ]
RE: [Cirrus/ShawniganLake/CA] Is there a difference between low clouds and fog?
The ONLY difference between low clouds (stratus) and fog, is that fog is startus based on the ground. Just to expand this a little, I have been 'inside' a thunderstorm cloud on a mountain, and the cloud topped the mountain and looked just like fog. I was inside a vehicle, so there was little danger, but I would not reccomend you doing this otherwise. The lightning was like being inside a camera flash going off.

[ Andrew/EnvironmentCanada - 305 - 16:52:20 ]
RE: [Sean/SHAWNIGANLAKESCHOOL/CA] why don't huge clouds dump their water after the vapor liquifies again? (For Mr.Giles)
In some ways they do - look at big thunderstorm clouds. When the amount of moisture in them gets above a certain level, it starts to rain, and depending on the actual amount, it either rains softly or very hard.

[ JohnJacoby/CentralMiddleSchool/US - 306 - 16:52:25 ]
Taria that's a good question

[ SAMCALEB/ShawniganLakeSchool/CA - 307 - 16:52:29 ]
can you ever stand on a cloud??

[ jazmin/shawniganlakeschool/CA - 308 - 16:52:35 ]
whats up Tom?

[ Matthew/NJMacpherson/CA - 309 - 16:52:35 ]
Hello

[ Victoria/GLOBE - 311 - 16:52:41 ]
Students, please have some patience. The scientists are answering questions as fast as they can. Please remeber your manners!

[ James/SHAWNIGANLAKESCHOOL/CA - 312 - 16:52:49 ]
WHERE HAS BEEN THE BIGGEST CLOUD EVER SEEN

[ TommyElder/CentralMiddleSchool/US - 313 - 16:52:50 ]
JEFF, HOW DO THUNDERSTORMS FORM?

[ BiBi/Shawnigan/CA - 314 - 16:52:51 ]
If you fall through a cloud, will u get wet?

[ BaronOfTheBeef - 315 - 16:52:51 ]
mr spence, what are clouds mad of

[ maRiNa/shawshank/CA - 316 - 16:52:51 ]
gabby, i am sooo sorry

[ MichaelJaclynAshley/FersonCreek/US - 317 - 16:53:02 ]
Hello, I'm Ashley, I have a question for Chris Spense. How long does it take for water to evaporate?

[ Matthew/NJMacpherson/CA - 318 - 16:53:05 ]
hi carter its me matt

[ jadimer/switzerland - 319 - 16:53:05 ]
HARUKI

[ ElvisAlicic/CentralMiddleSchool/US - 320 - 16:53:09 ]
Dr. Geoff Strong When there is a thunderstorm what is the safest place to be other than the house and what is the most dangerous

[ JoeandBrennan/FersonCreek/US - 321 - 16:53:12 ]
hi Dr. Spencer HAVE THE RIVER CHANGES BEEN DUE TO CLIMATE LIKE THE RIO GRANDE?

[ MerryFROMFERSONCREEK - 322 - 16:53:25 ]
IS THE EARTH CONTINUALLY COVERED WITH A CERTAIN PERCENTAGE OF CLOUD COVERAGE?- IF SO, DOES THAT MEAN THAT WHEN WE EXPERIENCE DROUGHTS OTHER AREAS ARE EXPERIENCING FLOODING? IN OTHER WORDS- IS OUR WEATHER IN A CONSISTANT STATE OF BALANCE?

[ TerriLang/MountainWeatherCentre - 323 - 16:53:26 ]
RE: [TommyElder/CentralMiddleSchool/US] WHY DO CLOUDS TURN DIFFERENT COLORS?
Tommy... clouds turn different colours depending on the angle of the sun and the thickness of the cloud. Black clouds are usually very thick clouds and not much sunshine can get through. The red and orange you see at sunset are the colours from the sun's light being reflected through the thick atmosphere and bouncing off the clouds.

[ Bob/ShawniganLakeShcool/CA - 324 - 16:53:30 ]
Why Are clouds white?

[ jazmin/shawniganlakeschool/CA - 325 - 16:53:36 ]
Mr.Giles here yet?

[ haruki/shawnigan/CA - 326 - 16:53:38 ]
what?

[ 3RDGRADEMRSADAMS/HOLYREDEEMERCATHOLICSCHOOL/US - 327 - 16:53:39 ]
Zack asks: Do smoke clouds from forest fires take away oxygen?

[ Paul_Ruscher/FSU - 328 - 16:53:40 ]
RE: [YOKOZUNA/SHAWNIGANLAKESCHOOL/CA] how large can a cloud get in area?
Clouds may extend over thousands of kilometers in area along a cold front, in particular. It then becomes difficult to pick out individual clouds so we say that the entire area is covered with clouds (if you are under them it might be OVERCAST, for example) and then we try to identify the cloud types we see.

[ Brianna/sls/GR - 329 - 16:53:44 ]
HI DIRKI!! WEETZIE BAT IS HERE.

[ Bob/ShawniganLakeShcool/CA - 330 - 16:53:48 ]
Why are clouds white?

[ Sean/SHAWNIGANLAKESCHOOL/CA - 331 - 16:53:56 ]
so what's the deal with clouds lowering to become fog?

[ cosmo_girl/ShawniganLakeSchool/CA - 332 - 16:54:04 ]
why are clouds sometimes pink or purple?

[ Matthew/NJMacpherson/CA - 333 - 16:54:04 ]
hello i live in Yellowknife N.W.T canada

[ carter/njmacpherson/CA - 334 - 16:54:10 ]
is there different ph levels between acid rain clouds or is there a certain ph level or range

[ BiBi/Shawnigan/CA - 335 - 16:54:10 ]
why do u want MR,Giles so much

[ Andrew/EnvironmentCanada - 336 - 16:54:25 ]
RE: [PeterHardyfromPanghere] I have an inuit expert on traditional knowledge on line from the arctic.
Peter, can you ask your traditional knowledge expert how the clouds have changed in the recent past? Do they notice different clouds now than they used to?

[ Chris_Spence/EnvironmentCanada - 338 - 16:54:28 ]
RE: [MichaelJaclynAshley/FersonCreek/US] Hello, my name is Jaclyn. I have a question for Chris Spense. When you look at the tree rings how can you tell what was the past climate?
Michael, the wetter and warmer the weather, the better trees grow and the wider the rings are. Evergreen trees go dormant each winter here and stop growing, so there is one ring for each year. By relating the width of a tree ring we can figure out if the climate was warmer and wetter that year. We use statistics to find a relationship for the weather record we have (which is ~40 years here) and extend it back for the life of the tree. We have extended annual weather records back to the 1600's.

[ maRiNa/shawshank/CA - 339 - 16:54:28 ]
i have a question, how can clouds be different colours, for example, some vary from dark to white

[ BiBi/Shawnigan/CA - 340 - 16:54:29 ]
If you fall through a cloud, will u get wet?

[ SAMCALEB/ShawniganLakeSchool/CA - 342 - 16:54:52 ]
if you poured juice on a cloud would it turn the colour of the juice??

[ JohnJacoby/CentralMiddleSchool/US - 343 - 16:54:54 ]
hello how is everybody

[ Wayne/TomUSANOAA/NCDC - 344 - 16:54:56 ]
RE: [KenanSarkic/CentralMiddleSchool/US] Arjen and Jerrine Verkaik can you tell me what snowqualls are?
A snowquall is just a heavy snowshower....like a summertime thunderstorm...rain/snow amounts can vary.

[ jadimer/switzerland - 345 - 16:54:57 ]
HARUKI, DO U NO WAT A CLOUD IS

[ LeahAshleySarah/FersonCreek/Unknown - 346 - 16:54:57 ]
Ed and Jerrine hello. Is there really gold at the end of the rainbow?

[ Patrick/ShawniganLakeschool/CA - 347 - 16:55:02 ]
Hi what is the highest altitude that a cloud has ever been

[ BiBi/Shawnigan/CA - 348 - 16:55:06 ]
If you fall through a cloud, will u get wet?

[ Victoria/GLOBE - 349 - 16:55:07 ]
Hi Peter Hardy Welcome. Thank you for coming up with this great chat. Could you Inuit friend please tell us how indigenous people regard clouds?

[ GeoffStrong/CloudThunderstormexpert - 350 - 16:55:08 ]
RE: [PeterHardyfromPanghere] I have an inuit expert on traditional knowledge on line from the arctic.
Peter, I would be interested, and the others too I'm sure, in knowing whether inuit study the clouds in detail, in terms of hunting practices, and just every-day living.

[ Paul_Ruscher/FSU - 352 - 16:55:27 ]
RE: [haruki/shawnigan/CA] whats the difference between different kinds of clouds?
Clouds are classified by their altitude (low, middle and high) and their shape (either flat or layered, or puffy or with some shape like waves, rolly-polly, etc.). Also if clouds produce precipitation (rain or snow) they are given a special name using a form of the word nimbus. alto=middle cirro=high strato=layered cumulo=heaped or lumpy

[ Sara/ShawniganLakeSchool/CA - 353 - 16:55:33 ]
Mr.Huffam

[ Sara/ShawniganLakeSchool/CA - 355 - 16:55:34 ]
Mr.Huffam

[ Brianna/sls/GR - 356 - 16:55:36 ]
HI MATHEW, WHAT GRADE ARE YOU IN AT N.J?

[ JasonMills/CentralMiddleSchool/US - 357 - 16:55:37 ]
Hey was up,I got a question for ArjenEdandJerrine

[ Matthew/NJMacpherson/CA - 358 - 16:55:39 ]
We just did some cloud whachs and it is mostly cirrus and cirrostratus clouds here roght now!

[ TARIATALBERT/CENTRALMIDDLESCHOOL/US - 359 - 16:55:41 ]
When you guys determine waht the weather is are you always right?

[ BiBi/Shawnigan/CA - 360 - 16:55:43 ]
If you fall through a cloud, will u get wet?

[ Bonnie/GLOBE/US - 361 - 16:55:51 ]
The GLOBE students from Italy would also like to know: Why does altitude influence the shape and type of clouds?

[ haruki/shawnigan/CA - 362 - 16:56:05 ]
no

[ AttagoyukSchoolStudents/AttagoyukIlisavik/CA - 363 - 16:56:08 ]
Hello, everyone we are in Pangnirtung Nunavut. We have an elder with us who can give traditional information relating to weather.

[ PeterHardyfromPanghere - 364 - 16:56:09 ]
I have an inuit elder here. His name is Inoosik Nashalik and is very experienced living on the land, one skill he has is to predict the weather.

[ BiBi/Shawnigan/CA - 365 - 16:56:12 ]
If you fall through a cloud, will u get wet?

[ JohnJacoby/CentralMiddleSchool/US - 366 - 16:56:12 ]
whose entered under denis devore?

[ KyleCorson/Centralmiddleschool/US - 367 - 16:56:17 ]
paul how high is a normal cloud in the sky?

[ Bart/shawniganlakeschool/CA - 368 - 16:56:19 ]
Mr. Ruscher: Besides that clouds provide rain, are clouds good for the Earth in other ways??

[ Mia/ShawniganLakeSchool/CA - 369 - 16:56:25 ]
Is there a direction that clouds move?

[ BiBi/Shawnigan/CA - 370 - 16:56:26 ]
If you fall through a cloud, will u get wet?

[ YOKOZUNA/SHAWNIGANLAKESCHOOL/CA - 371 - 16:56:27 ]
Is it possible to change the colour of a cloud

[ Sara/ShawniganLakeSchool/CA - 372 - 16:56:29 ]
Mr.Huffam Why are the clouds at night differrent colours like red,purple, pink and orange?

[ BiBi/Shawnigan/CA - 373 - 16:56:33 ]
If you fall through a cloud, will u get wet?

[ Wayne/TomUSANOAA/NCDC - 374 - 16:56:33 ]
RE: [JasonMills/CentralMiddleSchool/US] What made you name the clouds what you named
Cloud names all have Latin roots or origins...this was done way back in the 1600s....and refer basically to low/middle/high...

[ MitchellZuck/CentralMiddleSchool/US - 375 - 16:56:34 ]
Geoff Strong,How do dark clouds turn dark?

[ Bart/shawniganlakeschool/CA - 376 - 16:56:35 ]
Mr. Ruscher: Besides that clouds provide rain, are clouds good for the Earth in other ways??

[ MitchellZuck/CentralMiddleSchool/US - 377 - 16:56:35 ]
Geoff Strong,How do dark clouds turn dark?

[ Sara/ShawniganLakeSchool/CA - 378 - 16:56:36 ]
Mr.Huffam Why are the clouds at night differrent colours like red,purple, pink and orange?

[ Andrew/EnvironmentCanada - 379 - 16:56:46 ]
RE: [jazmin/shawniganlakeschool/CA] Mr.Giles here yet?
I'm here - ask your question again, as there are lots of people online, and the messages are scrolling past very quickly.

[ Matthew/NJMacpherson/CA - 380 - 16:56:46 ]
Emily and isobel are you in?

[ KATHRYNHUSARJENNYMOORE//Unknown - 381 - 16:56:47 ]
HI, MY NAME IS Jenny from Ferson Creek Elementry School and I have a question for Dr. Ruscher. Do you have any ways of telling changes of the weather?

[ BiBi/Shawnigan/CA - 382 - 16:56:51 ]
If you fall through a cloud, will u get wet?

[ carter/njmacpherson/CA - 383 - 16:56:55 ]
???

[ Brianna/sls/GR - 384 - 16:57:07 ]
HI MATHEW!!!

[ ALEX/SHAWNIGANLAKESCHOOL/CA - 385 - 16:57:12 ]
m

[ BiBi/Shawnigan/CA - 386 - 16:57:15 ]
If you fall through a cloud, will u get wet?

[ TerriLang/MountainWeatherCentre - 387 - 16:57:15 ]
RE: [haruki/shawnigan/CA] whats the difference between different kinds of clouds?
Haruki... the type of cloud you see depends on the height of the cloud above the ground and what the cloud is made of, either water particles or ice particles. The higher clouds are made up of ice because of the cold temperatures higher in the atmosphere. The lower clouds usually are made up of water particles.

[ Paul_Ruscher/FSU - 388 - 16:57:16 ]
RE: [CarlosFrench/BostonSouthEndPublicLibrary/US] Question for Andrew on entering our GLOBE data in the new Atmosphere protocol: Why don’t we enter stratus when it’s foggy out? Also at what visibility do we use obscured when entering our data?
I'd like to answer this one, too - if it is foggy you may enter that the sky is OBSCURED, enter fog as the obscuring phenomenon, and they please do enter stratus as the cloud in the comments, or metadata. Scientists understand that when you are completely covered with fog, you really do have a stratus cloud on the ground. But what we are interested in is the difference between a stratus cloud above the ground, and fog on the ground, that is why we made some changes in the cloud protocols.

[ JuLiE/ShawniganLakeSchool/CA - 389 - 16:57:17 ]
Ms Lang, So is that why it rains sometimes?

[ DENNISDEVORE/CENTRALMIDDLESCHOOL/US - 390 - 16:57:24 ]
HEY WHAT MAKES RAIN

[ JohnJacoby/CentralMiddleSchool/US - 391 - 16:57:32 ]
how high are alto cumulus clouds

[ CarlosFrench/BostonSouthEndPublicLibrary/US - 392 - 16:57:37 ]
How can knowing the wind direction help in forcasting the weather?

[ ArjenEdandJerrineGLOBEexp - 393 - 16:57:40 ]
RE: [SAMCALEB/ShawniganLakeSchool/CA] can you ever stand on a cloud??
Only in your imagination! Clouds are really just foggy air, so every object will fall through them. You can't stand on a cloud, but in some very intense thunderstorms, you might be able to be suspended inside the cloud. That's because the air inside the storm is moving up so rapidly that it can hold objects (like large hailstones) against gravity for short periods of time

[ cosmo_girl/ShawniganLakeSchool/CA - 394 - 16:57:44 ]
Ms.Lang Why are clouds sometimes purple or pink?

[ BiBi/Shawnigan/CA - 395 - 16:57:45 ]
If you fall through a cloud, will u get wet?

[ Devin/ShawniganLakeSchool/CA - 396 - 16:57:46 ]
Can a cloud from North Amarica "FLYS" to Asia or Europe ? Thank you for answering my question !

[ TARIATALBERT/CENTRALMIDDLESCHOOL/US - 397 - 16:57:48 ]
Depending on what the color of the horizon is can that effect the color of the clouds?

[ James/SHAWNIGANLAKESCHOOL/CA - 398 - 16:57:49 ]
MR GILES CAN CLOUDS change colour

[ Danielle/ShawniganLakeSchool/CA - 399 - 16:57:57 ]
no i am not in an igloo, it is usually sunny but the cloud cover today is over cast......hey can you tell wat time of the day will the weather change by observating cloud type or cloud cover!!! wat grade r u in!!

[ Stratus/ShawniganLake/CA - 400 - 16:58:00 ]
Why do we sometimes see a halo around the sun or moon? Is this caused by clouds and what does it mean?

[ jadimer/switzerland - 401 - 16:58:02 ]
HARUKI ARE U A SCIENTIST

[ Wayne/TomUSANOAA/NCDC - 402 - 16:58:03 ]
RE: [YOKOZUNA/SHAWNIGANLAKESCHOOL/CA] Is it possible to change the colour of a cloud
We don't change colors of clouds...color is depended upon thickness, possible dust accumulation, view with respect to the sun (viewing angle), etc.

[ Yosung/ShawniganLakeSchool/KR - 403 - 16:58:08 ]
Mr. Huffam, If you fell through clouds will you decrease in speed or will you fall as you fell through air?

[ Andrew/EnvironmentCanada - 404 - 16:58:09 ]
RE: [Mia/ShawniganLakeSchool/CA] Is there a direction that clouds move?
Because clouds are made up of tiny water droplets or ice crystals, they will move with the winds at the level they are found at. So if the winds at cloud level are blowing from west to east, so will the clouds.

[ Paul_Ruscher/FSU - 405 - 16:58:13 ]
RE: [Bob/ShawniganLakeShcool/CA] Why are clouds white?
Clouds are white because cloud droplets and ice crystals reflect all the sunlight on them equally. When you spin a color wheel fast, you see white, correct? That is the same idea.

[ Chris_Spence/EnvironmentCanada - 406 - 16:58:18 ]
Ashley, Evaporation can take place instanteously. It depends on many things like wind speed and the amount of energy applied to a pond, or the dryness of the air. I'm sorry that I addressed Jaclyn as Micheal before.

[ jazmin/shawniganlakeschool/CA - 407 - 16:58:22 ]
can you use clouds to predict the weather?

[ MattNoraAmelia/FersonCreek/US - 408 - 16:58:25 ]
I have a question for Ed and Jerrine, how can you chase a rainbow?

[ Matthew/NJMacpherson/CA - 409 - 16:58:30 ]
How are the clouds around hurricans formed

[ paul/ShawnigawnLake/CA - 410 - 16:58:32 ]
Mr. Verkaik, how do you go about photographing clouds

[ Brianna/sls/GR - 411 - 16:58:33 ]
HI CARTER,YOU KNOW AISLINN RIGHT???

[ TerriLang/MountainWeatherCentre - 412 - 16:58:34 ]
RE: [Bob/ShawniganLakeShcool/CA] Why are clouds white?
Bob... clouds are white because they reflect the white light from the sun. I had answered this question a little earlier.

[ BiBi/Shawnigan/CA - 413 - 16:58:39 ]
If you fall through a cloud, will u get wet?

[ Patrick/ShawniganLakeschool/CA - 414 - 16:58:39 ]
Dr.Ruscher. What is the highest altitude a cloud has ever been at?

[ JohnJacoby/CentralMiddleSchool/US - 415 - 16:58:43 ]
Briana where are you from

[ GeoffStrong/CloudThunderstormexpert - 416 - 16:58:53 ]
RE: [BiBi/Shawnigan/CA] If you fall through a cloud, will u get wet?
Bibi, if you fell through a cloud, yes, you would 'likely' get wet. It depends on how far (how long) you were falling. Fog is another form of cloud (ground-based), and our easterners who get lots of fog on the northeast coast (Boston to Nova Scotia, for example), can tell us that you do indeed get wet in fog. Having grown up in foggy Newfoundland, I can assure you of this.

[ JasonMills/CentralMiddleSchool/US - 417 - 16:58:53 ]
Hey was up,I have a qustion for Anderw/EnvironmentCanada.What is

[ Paul_Ruscher/FSU - 418 - 16:58:56 ]
RE: [PeterHardyfromPanghere] I have an inuit elder here. His name is Inoosik Nashalik and is very experienced living on the land, one skill he has is to predict the weather.
Peter - hello! I'm very interested in hearing how the Inuit regard clouds in their reading of weather signs, too!

[ AlidjennatouALIOUEMMANUEL/GLOBEBENINCoordinator/BJ - 419 - 16:58:57 ]
Hello to each of you,dear GLOBE partners on line this afternoon! Thanks to Dr Suzan Postawko and Dr David Brooks for leading two weeks ago at Cotonou, the 1rst GLOBE Atmosphere Symposiumhosted by GLOBE BeNIN

[ maRiNa/shawniganlakeschool/CA - 421 - 16:59:14 ]
could some please answer my question

[ DENNISDEVORE/CENTRALMIDDLESCHOOL/US - 422 - 16:59:25 ]
PAUL WHEN ARE CLOUDS DEADLY

[ BoRi/ShawniganLakeSchool/CA - 423 - 16:59:25 ]
Mr Huffam what does the clouds provide us other than rain?

[ JohnZSamPSamR/FersonCreek/US - 424 - 16:59:27 ]
Peter Hardy Hello my name is Sam P., Dear Mr. Hardy, When do you know when a blizzard is coming?

[ Andrew/EnvironmentCanada - 425 - 16:59:30 ]
RE: [Stratus/ShawniganLake/CA] Why do we sometimes see a halo around the sun or moon? Is this caused by clouds and what does it mean?
A halo is usually formed by sunlight being refracted by ice crystals, and is a sign of high level moisture - which can then be a sign of worsening weather.

[ MattWakefield/CentralMiddleSchool/US - 426 - 16:59:31 ]
Hi, Brianna

[ JohnJacoby/CentralMiddleSchool/US - 427 - 16:59:36 ]
how is everyone today

[ Paul_Ruscher/FSU - 429 - 16:59:42 ]
RE: [Bonnie/GLOBE/US] The GLOBE students from Italy would also like to know: Why does altitude influence the shape and type of clouds?
Altitude is an influence because the high altitude clouds are made of ice crystals, because air is so cold up high. This tends to make the clouds more delicate in appearance, especially for cirrus.

[ EmilyKatherineJordanJamie/FersonCreek/US - 430 - 16:59:43 ]
Dear Dr. Geoff Strong, When lighting hits how many seconds does it take for thunder to hit . I'm Katherine from Ferson Creek.

[ PeterHardyfromPanghere - 432 - 16:59:45 ]
RE: [JohnZSamPSamR/FersonCreek/US] Petter Hardy, Hello my name is Sam.R, How does the climate turn from hot to cold?
Hi Sam, As the eartm orbits the sun a couple of things happen. The earth moves a little further away so the sun is weaker, also the earth spins on a tilted axis and in summer the northern hemisp[here is pointed toward the sun so it is hotter, in winter it is pointed away and it is cooler. In the arctic the sunlight doesnt even shine so the earth gets colder and the oceans and rivers freeze

[ JoeandBrennan/FersonCreek/US - 434 - 16:59:51 ]
HEY DR. SPENCER IF THE CLIMATE IS HOT AND STICKY DOES THAT MEAN THERE IS A GOOD CHANCE FOR A TORNADO OR A FUNNEL CLOUD

[ BiBi/Shawnigan/CA - 435 - 16:59:52 ]
how does acid rain form?

[ JacobAnderson/CentralMiddleSchool/US - 436 - 16:59:57 ]
how do inuit people predict the weather?

[ Bob/ShawniganLakeShcool/CA - 437 - 16:59:57 ]
Mr. Ruscher can clouds affect humdity or the berometric pressure?

[ TerriLang/MountainWeatherCentre - 438 - 17:00:02 ]
RE: [cosmo_girl/ShawniganLakeSchool/CA] Ms.Lang Why are clouds sometimes purple or pink?
Cosmo girl... the clouds are purple and pink sometimes, usually at sunrise or sunset, because the light from the sun is bent through the thick atmosphere and the colours are reflected off the clouds.

[ BiBi/Shawnigan/CA - 440 - 17:00:20 ]
how does acid rain form?

[ cosmo_girl/ShawniganLakeSchool/CA - 445 - 17:00:50 ]
does it have anything to do with rain ms.Lang?

[ ben/sls - 446 - 17:00:51 ]
can u drink a condensed cloud?

[ TARIATALBERT/CENTRALMIDDLESCHOOL/US - 447 - 17:01:00 ]
Jasmine what grade are you in and when did you guys start to learn about clouds?

[ DENNISDEVORE/CENTRALMIDDLESCHOOL/US - 448 - 17:01:03 ]
HEY PAUL WHAT DO CLOUDS FEEL LIKE

[ JohnJacoby/CentralMiddleSchool/US - 449 - 17:01:04 ]
I had agood question earlier and nobody answered it

[ KenanSarkic/CentralMiddleSchool/US - 450 - 17:01:04 ]
Dr.Strong what are the instrumented weather balloons called that you use when specializing thunderstorms and atmospheris moisture?

[ TommyElder/CentralMiddleSchool/US - 451 - 17:01:07 ]
DR.STRONG,WHEN A TORNADO IS AROUND DOES THE SKY TURN GREEN OR DO THE CLOUDS TURN GREEN, AND WHY?

[ MattWakefield/CentralMiddleSchool/US - 452 - 17:01:11 ]
What kind of clouds are in Hurricanes?

[ BiBi/Shawnigan/CA - 453 - 17:01:29 ]
how does acid rain form?

[ MitchellZuck/CentralMiddleSchool/US - 454 - 17:01:35 ]
can a person predict wheather by the clouds?

[ Paul_Ruscher/FSU - 456 - 17:01:37 ]
RE: [KATHRYNHUSARJENNYMOORE//Unknown] HI, MY NAME IS Jenny from Ferson Creek Elementry School and I have a question for Dr. Ruscher. Do you have any ways of telling changes of the weather?
Hi, I like to watch the sky change to determine whether we are going to get thunderstorms during summer days in Florida. You can watch the sky go from completely clear to overcast in a few hours, and you can see small cumulus clouds grow into cumulonimbus. We get a "sea breeze" here in Florida; in Tallahassee we are about 30 kilometers inland from the coast, and we can watch the clouds grow to the south of us, and approach on some days (if the winds are right), then we can get a good prediction about rain that day.

[ AttagoyukSchoolStudents/AttagoyukIlisavik/CA - 457 - 17:01:40 ]
It has been very warm here in Pangnirtung. We have noticed it is getting warmer. Elders tell us that the sky is not as blue as it was 20 yrs ago. This is from pollution in our atmosphere. Today is -5 with clear blue sky and slight haze. No wind

[ TerriLang/MountainWeatherCentre - 458 - 17:01:42 ]
RE: [BiBi/Shawnigan/CA] If you fall through a cloud, will u get wet?
Bibi... it depends on what kind of cloud it is. If you fell through a thin cloud made of ice, you would not get wet. If you stood in a fog bank (stratus), you probably wouldn't get wet but it would be damp. If you fell through a cumulonimbus cloud, you would like get wet, maybe even hailed on and thrown about by very strong winds!!

[ Bud/ShawniganLakeSchool - 459 - 17:01:46 ]
Mr. Ruscher What is the difference in color between clouds in a hurricane and in a sunshower

[ Andrew/EnvironmentCanada - 461 - 17:02:04 ]
RE: [jazmin/shawniganlakeschool/CA] can you use clouds to predict the weather?
We use clouds and their motion to predict the weather - of course we have satellite pictures to show motion, and weather reports to show what kind of cloud is where, and the combination will help us to predict what kind of clouds will go where.

[ JasonMills/CentralMiddleSchool/US - 462 - 17:02:06 ]
Wayne what is the tallest cloud you ever seen

[ Danielle/ShawniganLakeSchool/CA - 463 - 17:02:07 ]
Mitch can u tell the temperature if you r looking at clouds inside a???

[ YOKOZUNA/SHAWNIGANLAKESCHOOL/CA - 464 - 17:02:10 ]
what kind of clouds produce acid rain?

[ BiBi/Shawnigan/CA - 465 - 17:02:11 ]
how does acid rain form?

[ Devin/ShawniganLakeSchool/CA - 466 - 17:02:19 ]
When the airplane go throw the clouds, does it make a hole in the clouds ?

[ JohnJacoby/CentralMiddleSchool/US - 467 - 17:02:21 ]
why nobody writye back

[ PeterHardyfromPanghere - 468 - 17:02:27 ]
RE: [BiBi/Shawnigan/CA] how does acid rain form?
Hi Bibi as clouds sweep across the sky the water droplets in them can absorb gases. A chemical reaction between water and some gases leads to the water becoming acid and when it rains you have acid rain.

[ Boser/ShawnigawnLake/CA - 469 - 17:02:29 ]
Mr.Lang. Hi I'm Justin. I was wandering If I was sky diving and I went through a cloud, would I be slowed down.

[ Paul_Ruscher/FSU - 471 - 17:02:39 ]
RE: [Stratus/ShawniganLake/CA] Why do we sometimes see a halo around the sun or moon? Is this caused by clouds and what does it mean?
A halo is caused by the bending of light across ice crystals in the CIRROSTRATUS cloud

[ BiBi/Shawnigan/CA - 472 - 17:02:40 ]
how does acid rain form?

[ ALEX/SHAWNIGANLAKESCHOOL/CA - 473 - 17:02:40 ]
andrew can you tell me if it is possible to make mand made clouds

[ jAzmin/shawnigan/CA - 474 - 17:02:53 ]
hey Taria, I'm in gr.8 and we started learning clouds at the beginning of the year... how bout you?

[ Matthew/NJMacpherson/CA - 475 - 17:02:56 ]
acid rain is just the are pollution is mixed in with the wateer

[ JoeandBrennan/FersonCreek/US - 476 - 17:02:56 ]
DR SPENSE HOW DOES THE WATER CYCLE WORK?

[ JacobAnderson/CentralMiddleSchool/US - 478 - 17:03:00 ]
how does the eyes of a tornado or hurricane form?

[ gabby/shawniganlake/CA - 480 - 17:03:05 ]
andrew do you now any info about cloads taht you would loke to pass to another person

[ Chris_Spence/EnvironmentCanada - 481 - 17:03:15 ]
There was a question about rivers and climate change. Hydrologists are still trying to find out what the effects of climate change on rivers will be. Because many rivers are different, the Rio Grande is a much different river than the Canadian Shield or muskeg rivers we have in Canada's north, each reacts to rain and snow differently. The effect on rivers will depend on if it it to get wetter and/or warmer where you are and how that may affect evaporation or uptake of moisture into the ground, which will prevent water from reaching the rivers.

[ JohnJacoby/CentralMiddleSchool/US - 483 - 17:03:27 ]
are clouds different through the different seasons

[ BiBi/Shawnigan/CA - 485 - 17:03:42 ]
how does acid rain form?

[ LeahAshleySarah/FersonCreek/Unknown - 486 - 17:03:43 ]
Ed, and Jerrine this is Ashley. do you ever get scared following tornadoes?

[ Patrick/ShawniganLakeschool/CA - 487 - 17:03:44 ]
Mr.Ruscher.Hi What kind of clouds are on Mars?

[ Paul_Ruscher/FSU - 488 - 17:03:47 ]
RE: [Patrick/ShawniganLakeschool/CA] Dr.Ruscher. What is the highest altitude a cloud has ever been at?
Hi, the highest altitude clouds are noctilucent and mother-of-pearl clouds, and nacreous clouds, which appear outside the troposphere, but these are very unusual (and not in the GLOBE protocols!). However, cumulonimbus cloud anvils (tops of thunderstorms) sometimes reach over 18 kilometers for very strong storms.

[ PeterHardyfromPanghere - 489 - 17:03:51 ]
RE: [YOKOZUNA/SHAWNIGANLAKESCHOOL/CA] what kind of clouds produce acid rain?
Any cloud that has the potentila to produce rain can lead to acid rain.

[ TARIATALBERT/CENTRALMIDDLESCHOOL/US - 490 - 17:03:54 ]
If we were taught could we predict the weather just by looking and studying clouds?

[ Logie/SHAWNIGANLAKESCHOOL/CA - 492 - 17:03:59 ]
Dr.Verkaik why is it that it can rain even after some of the storm clouds have passed?

[ JohnJacoby/CentralMiddleSchool/US - 493 - 17:04:02 ]
cosmogirl my school is in waterloo Iowa, not that great of a place

[ ALEX/SHAWNIGANLAKESCHOOL/CA - 494 - 17:04:09 ]
Mr. hardy can you tell me why clouds is lighter than air

[ Logie/SHAWNIGANLAKESCHOOL/CA - 495 - 17:04:10 ]
Dr.Verkaik why is it that it can rain even after some of the storm clouds have passed?

[ JasonMills/CentralMiddleSchool/US - 496 - 17:04:11 ]
I haue a question for Wayne,What is the temp.of the tallest cloud

[ Rob_ot3SLS - 498 - 17:04:20 ]
Bibi Stop SPAMing the chat

[ MattNoraAmelia/FersonCreek/US - 499 - 17:04:27 ]
I have a question for Ed and Jerrine, have you ever been afraid to chase anything just for a picture? Why?

[ wendycampbell/calgaryboardofeducation/CA - 501 - 17:04:33 ]
Yesterday one of the schools I was working with on entering data for clouds pointed out that the pictures do not match the the cloud types. Could this please be checked out by someone at GLOBE. The Grade twos were very confused. Thanks.

[ MitchellZuck/CentralMiddleSchool/US - 502 - 17:04:35 ]
i dont know im not thet smart

[ ArjenEdandJerrineGLOBEexp - 503 - 17:04:37 ]
RE: [Wayne/TomUSANOAA/NCDC] A snowquall is just a heavy snowshower....like a summertime thunderstorm...rain/snow amounts can vary.
In the fall during cold spells the cold air travelling over the warm water of the Great Lakes creates large towering cumulus clouds. As these move inland they cool down to produce very heavy bursts of snow that can fall up to five centimters an hour for many hours in one area. What's unusual is that some towns are hit with heavy snowsqualls while only onle a few miles away it can be sunny all day.

[ YOKOZUNA/SHAWNIGANLAKESCHOOL/CA - 506 - 17:04:49 ]
what kind of cloud is on jupiter?

[ GeoffStrong/CloudThunderstormexpert - 507 - 17:04:55 ]
RE: [jazmin/shawniganlakeschool/CA] can you use clouds to predict the weather?
Jazmin - you ask a question dear to my heart (and to that of the Verkaiks, also on here as experts). You most certainly CAN predict weather from clouds, at least in the short term. For example, someone above mention 'altocumulus Castellanus' clouds. If you see these (small 'turrets' poking up through a broken altocumulus cloud layer) during the morning, especially on the Canadian prairies orv the U.S. High Plains, then there is a good chance of a thunderstorm that day. This is because they are an indicator of existing unstable air at those levels. That is but one example; we can think on many others where clouds help you predict the weather. UNFORTUNATELY, the new automatic weather stations, which have replaced hman observers at most weather sites, DO NOT give you any description of clouds - one area where technology has not improved on humans.

[ Matthew/NJMacpherson/CA - 508 - 17:04:56 ]
Dr geoff Strong how do the clouds around hurricans form?

[ TerriLang/MountainWeatherCentre - 509 - 17:04:57 ]
RE: [cosmo_girl/ShawniganLakeSchool/CA] does it have anything to do with rain ms.Lang?
Cosmo girl... purple and pink clouds generally don't have anything to do with rain. There is a piece of weather folklore that states "red in the morning, sailors take warning, red at night, sailors delight" (the bible also has a similar saying for shepards). This has to do with where the sun is with respect to the direction of the clouds. IN the northern hemisphere, the sun rises in the east and sets in the west. The clouds in the northern hemisphere GENERALLY move from west to east. Thus if you see a red sky in the morning (meaning the sun is reflecting off clouds in the west) it may mean the clouds are moving towards you. The reverse is true in the evening.

[ PeterHardyfromPanghere - 510 - 17:04:57 ]
Inoosik says that the major things he uses to predict weather are the clouds he sees in the sky, the sun and the moon.

[ Paul_Ruscher/FSU - 511 - 17:05:13 ]
RE: [Bob/ShawniganLakeShcool/CA] Mr. Ruscher can clouds affect humdity or the berometric pressure?
Hi, Bob - clouds are generally created by humidity differences, rather than the other way. Clouds during daytime often will decrease the temperature, which can increase (slightly) the relative humidity. Also there may be very small pressure changes, not observable with a typical aneroid barometer.

[ jAzmin/shawnigan/CA - 513 - 17:05:21 ]
No, if you could tell if It would be sunny or cloudy or rainy the next day by looking at clouds that day before

[ JohnZSamPSamR/FersonCreek/US - 514 - 17:05:34 ]
Peter Huffmen Are you a piolit your self?If yes have you flown over a lenticulus cloud and looked down? John.

[ JoeandBrennan/FersonCreek/US - 515 - 17:05:41 ]
DR SPENSE HOW DO YOU LIKE BEING A HYDROLOGIST?

[ Patrick/ShawniganLakeschool/CA - 517 - 17:05:57 ]
Dr. Verkaik. In thunderstorms how fast do cloudsmove

[ ben/sls - 518 - 17:05:59 ]
can clouds be thicker or thinner

[ TARIATALBERT/CENTRALMIDDLESCHOOL/US - 520 - 17:06:10 ]
Jasmine,we started learning about clouds like three weeks ago?

[ TedEricLoren/FersonCreekElementry/US - 521 - 17:06:10 ]
Hi i'm Ted Cris Spust of what you've seen what was the biggest river change that you know of ?

[ Paul_Ruscher/FSU - 522 - 17:06:15 ]
RE: [MattWakefield/CentralMiddleSchool/US] What kind of clouds are in Hurricanes?
Hurricanes are covered with cumulonimbus clouds (where it is raining), cirrus (at the top in what we call the outflow region), and cumulus, altocumulus, and stratocumulus in the area around the hurricane, typically.

[ JasonMills/CentralMiddleSchool/US - 523 - 17:06:17 ]
Wayne what makes a cloud so big

[ JoeandBrennan/FersonCreek/US - 524 - 17:06:19 ]
HELLLLLLLLLLLLLLLLLLO

[ TerriLang/MountainWeatherCentre - 525 - 17:06:23 ]
RE: [Boser/ShawnigawnLake/CA] Mr.Lang. Hi I'm Justin. I was wandering If I was sky diving and I went through a cloud, would I be slowed down.
Boser.. no, if you fell through a cloud sky diving, you would not be slowed down. HOwever, if you feel through a cumulonimbus cloud, the strong winds in the cloud, might throw you around quite a bit!!

[ CarlosFrench/BostonSouthEndPublicLibrary/US - 526 - 17:06:24 ]
Paul thanks for your last answer, here's a another question you might have missed earlier: How do we classify clouds in areas that are around or above 2000 meters? My students asked me while I was in Santa Fe NM, which is just about 2000 m, how I could see all the cloud types?

[ MichaelJaclynAshley/FersonCreek/US - 527 - 17:06:32 ]
Hello, my name is Michael. I have a question for DR. Geoff Strong. Have you ever got hit by lightning in your balloon?

[ jAzmin/shawnigan/CA - 528 - 17:06:34 ]
thx mr.strong

[ jAzmin/shawnigan/CA - 529 - 17:07:20 ]
Taria does your school do the globe program?

[ Andrew/EnvironmentCanada - 530 - 17:07:20 ]
RE: [PeterHardyfromPanghere] Inoosik says that the major things he uses to predict weather are the clouds he sees in the sky, the sun and the moon.
Is his forecast a general type forecast - like worsening weather or improving weather. How would he teach someone - or is it a matter of spending lots of time looking at the skies, and remembering what happens?

[ Paul_Ruscher/FSU - 531 - 17:07:25 ]
RE: [YOKOZUNA/SHAWNIGANLAKESCHOOL/CA] what kind of clouds produce acid rain?
Only nimbostratus and cumulonimbus clouds can produce acid rain, because these are the only clouds that produce rain. Any time that rain falls through polluted air (for pollution with sulfur and forms of nitrogen compounds in particular) will that pollutant mix with the rain to make acid rain.

[ James/SHAWNIGANLAKESCHOOL/CA - 532 - 17:07:31 ]
what kind of clouds are on saturn

[ Devin/ShawniganLakeSchool/CA - 533 - 17:07:34 ]
Mr.Huffam, I am Devin from Shawnigan, when a plane go throw a cloud, does it make a hole ?

[ TommyElder/CentralMiddleSchool/US - 534 - 17:07:36 ]
DR.STRONG, WHEN A TORNADO IS AROUND DOES THE SKY TURN GREEN OR DO THE CLOUDS TURN GREEN?

[ adriana/shawniganlakeschool/CA - 535 - 17:07:37 ]
mr. strong what is the main thing that clouds are helpful for?

[ carternjmacpherson - 536 - 17:07:48 ]
hi my name is carter stirling i live in yellowknife nwt canada I got to nj macpherson. I have a question for mr chris spence. do acid rain clouds have a certain ph level or a certain ph level range

[ GeoffStrong/CloudThunderstormexpert - 537 - 17:07:50 ]
RE: [maRiNa/shawniganlakeschool/CA] could some please answer my question
maRiNa, would you please repeat your questyion, and I will look for it. The questions are coming fast and furious, and we miss some as we go.

[ PeterHardyfromPanghere - 538 - 17:07:59 ]
RE: [TARIATALBERT/CENTRALMIDDLESCHOOL/US] If we were taught could we predict the weather just by looking and studying clouds?
Our inuit elder knows how the weather will change by looking at what clouds he sees, how they change during the day, Inoosik can tell from clouds that the winds are changing. The north woind has different clouds to the sourth wind. When he sees the clouds he knows the wind and the weather that will follow

[ ALEX/SHAWNIGANLAKESCHOOL/CA - 540 - 17:08:02 ]
Why do clouds form at diffrent time

[ Sean/SHAWNIGANLAKESCHOOL/CA - 541 - 17:08:04 ]
Take a guess how much cloud cover is at Shawnigan right now anyone?

[ ArjenEdandJerrineGLOBEexp - 542 - 17:08:05 ]
RE: [MattNoraAmelia/FersonCreek/US] I have a question for Ed and Jerrine, how can you chase a rainbow?
A rainbow happens when sun shines on falling rain and you are in the right place to see it (in the afternoon this would be to the west of the shower). So, if you wanted to chase the rainbow what you are really doing is chasing that shower cloud that is moving away (usually to the east)so that you are always in the right place to see the rainbow. It's a tricky business because other clouds can fill in the clear sky or the shower may stop raining, but it's a lot of fun to try.

[ Kat/ShawniganLakeSchool/CA - 543 - 17:08:15 ]
Are clouds affected by the tides?

[ cosmo_girl/ShawniganLakeSchool/CA - 544 - 17:08:23 ]
canada rox! have you even been here? it's so gorgeous!

[ Paul_Ruscher/FSU - 545 - 17:08:28 ]
RE: [Patrick/ShawniganLakeschool/CA] Mr.Ruscher.Hi What kind of clouds are on Mars?
Hi, on Mars there is precious little (if any) water vapor, so the only clouds are made of dust. You can sometimes see dust storms on Mars using high powered telescopes.

[ SAMCALEB/ShawniganLakeSchool/CA - 546 - 17:08:31 ]
why are clouds so poofy?

[ AttagoyukStudent/AtagoyukIlisavik/Unknown - 548 - 17:08:47 ]
Its hot out today in Pangnirtung. Its a blue sky no clouds just the sun is showing right now. The tempeture today in Pangnirtung is -5. The little bit of wind we have today its not cold.

[ gabby/shawniganlake/CA - 549 - 17:08:49 ]
what info is importent to now about cloads

[ Boser/ShawnigawnLake/CA - 550 - 17:08:52 ]
Ms.Lang. I was wandering, to phisical land features affect clouds

[ Boser/ShawnigawnLake/CA - 551 - 17:08:52 ]
Ms.Lang. I was wandering, to phisical land features affect clouds

[ Boser/ShawnigawnLake/CA - 552 - 17:08:52 ]
Ms.Lang. I was wandering, to phisical land features affect clouds

[ Boser/ShawnigawnLake/CA - 554 - 17:08:57 ]
Ms.Lang. I was wandering, to phisical land features affect clouds

[ JohnJacoby/CentralMiddleSchool/US - 555 - 17:08:58 ]
its too cold up there

[ DavidHacker/CentralMiddleSchool/US - 556 - 17:09:03 ]
DR. RUSCHER WHAT MAKES CLOUDS PUFFY OR FLAT AND WHISPY?

[ Paul_Ruscher/FSU - 557 - 17:09:12 ]
RE: [TARIATALBERT/CENTRALMIDDLESCHOOL/US] If we were taught could we predict the weather just by looking and studying clouds?
Great question - that would take a lot of experience; but using clouds you can tell a lot. When used with other observations, you could become a better weather forecaster!

[ Andrew/EnvironmentCanada - 558 - 17:09:13 ]
RE: [PeterHardyfromPanghere] Our inuit elder knows how the weather will change by looking at what clouds he sees, how they change during the day, Inoosik can tell from clouds that the winds are changing. The north woind has different clouds to the sourth wind. When he sees the clouds he knows the wind and the weather that will follow
From clouds come winds and then weather. I go the other way around, from winds come clouds and weather!

[ CarlosFrench/BostonSouthEndPublicLibrary/US - 559 - 17:09:15 ]
Is there any truth to the saying: "Pink clouds at night saliors delight, pink clouds in the morning sailors take warning."?

[ TerriLang/MountainWeatherCentre - 560 - 17:09:21 ]
I don't know who asked the question, but I wanted to answer the person who asked about the same cloud over BC coming to Alberta and if it was the same cloud. It would likely not be the same cloud. The air moves through the atmosphere, forming clouds in some areas, and dissipating the clouds in other areas. The same weather system might move over BC into Alberta, carrying lots of clouds, but the clouds would be different clouds!

[ KATHRYNHUSARJENNYMOORE//Unknown - 561 - 17:09:33 ]
HI, MY NAME IS Jenny from Ferson Creek Elementry School and I have a question for Peter Hardy. Are there any Pang traditions that help you understand the climate?

[ SAMCALEB/ShawniganLakeSchool/CA - 562 - 17:09:40 ]
what is the average size of a cloud

[ Sean/SHAWNIGANLAKESCHOOL/CA - 563 - 17:09:41 ]
Has anyone heard of somebody taking a pH test of cloud vapour?

[ jadimer/switzerland - 564 - 17:09:57 ]
SEAN, R U IN CANADA

[ Boser/ShawnigawnLake/CA - 565 - 17:10:02 ]
ms. Lang sorry about sending that 4 times

[ cosmo_girl/ShawniganLakeSchool/CA - 566 - 17:10:04 ]
tariatalbert i dunno what mah favourite cloud is! what about you? i think i like it when it's clear and hot outside :P

[ Paul_Ruscher/FSU - 567 - 17:10:06 ]
RE: [YOKOZUNA/SHAWNIGANLAKESCHOOL/CA] what kind of cloud is on jupiter?
On Jupiter I think most of the clouds are made of hydrogen and other very light gases.

[ JoeandBrennan/FersonCreek/US - 568 - 17:10:18 ]
HEY MR HARDY WHAT IS THE COLDEST TEMATURE EVER RECORDED IN CANADA

[ Kat/ShawniganLakeSchool/CA - 569 - 17:10:19 ]
taria talbert where in the states are you?

[ JacobAnderson/CentralMiddleSchool/US - 570 - 17:10:20 ]
How do the eyes of tornados and hurricanes form?

[ JasonMills/CentralMiddleSchool/US - 571 - 17:10:21 ]
Dr.Strong,Why do Tornadoes form by open land

[ EmilyKatherineJordan/FersonCreek/US - 572 - 17:10:22 ]
Dear Dr. Geff Strong, Hi, I'm Emily from Ferson Creek. I was wondering what a weather balloon is.

[ Matthew/NJMacpherson/CA - 574 - 17:10:31 ]
Dr Strong I have a question about clouds. Is there clouds on any other planets then Eath.

[ Matthew/NJMacpherson/CA - 575 - 17:10:31 ]
Dr Strong I have a question about clouds. Is there clouds on any other planets then Eath.

[ SAMCALEB/ShawniganLakeSchool/CA - 576 - 17:10:38 ]
why are clouds so POOFY WOOFY?

[ Patrick/ShawniganLakeschool/CA - 577 - 17:10:39 ]
Mr.ruscher. are there clouds on venus and what type?

[ KyleCorson/Centralmiddleschool/US - 578 - 17:10:41 ]
hows the weather today in canada gabby

[ cosmo_girl/ShawniganLakeSchool/CA - 579 - 17:10:45 ]
johnjacoby! only in ontario and newfoundland it's too cold right now!

[ JoeandBrennan/FersonCreek/US - 580 - 17:10:59 ]
MR HARDY ARE YOU THERE

[ TedEricLoren/FersonCreekElementry/US - 581 - 17:11:00 ]
Hi i'm Ted Cris Spust of what you've seen what was the biggest river change that you know of ?

[ AlidjennatouALIOUEMMANUEL/GLOBEBENINCoordinator/BJ - 582 - 17:11:04 ]
Dr Ruscher,it seems that all of clouds patterns does not appear in our region.Please,could you indicate me those patterns and why we do not observe them.

[ Andrew/EnvironmentCanada - 583 - 17:11:10 ]
RE: [AttagoyukStudent/AtagoyukIlisavik/Unknown] Its hot out today in Pangnirtung. Its a blue sky no clouds just the sun is showing right now. The tempeture today in Pangnirtung is -5. The little bit of wind we have today its not cold.
Looks like more clouds and snow on the way for Pang tomorrow.

[ ArjenEdandJerrineGLOBEexp - 584 - 17:11:14 ]
RE: [Patrick/ShawniganLakeschool/CA] Dr. Verkaik. In thunderstorms how fast do cloudsmove
Storms in the spring and fall move from 30-50 miles per hour, but storms in the middle of summer often move more slowly, around 10-20 miles per hour. Once in awhile during a warm, humid, stagnant weather pattern, some thunderclouds will form and then die without moving any distance at all. A typical average for the motion of a storm cloud would be 25 miles per hour.

[ TARIATALBERT/CENTRALMIDDLESCHOOL/US - 585 - 17:11:18 ]
Jasmine,yes our classdoes the globe program.We started long time ago,how about you?

[ Paul_Ruscher/FSU - 586 - 17:11:22 ]
RE: [CarlosFrench/BostonSouthEndPublicLibrary/US] Paul thanks for your last answer, here's a another question you might have missed earlier: How do we classify clouds in areas that are around or above 2000 meters? My students asked me while I was in Santa Fe NM, which is just about 2000 m, how I could see all the cloud types?
Great question, thanks for asking it again, I did miss it. Generally speaking, clouds are classified by their elevation above ground level, not sea level. Perhaps the NOAA guys can answer this too.

[ Sean/SHAWNIGANLAKESCHOOL/CA - 587 - 17:11:25 ]
yes Jadimer, I am in canada

[ cosmo_girl/ShawniganLakeSchool/CA - 588 - 17:11:27 ]
bori don't go too crazy!~!

[ JohnJacoby/CentralMiddleSchool/US - 589 - 17:11:28 ]
hey cali has the same abbreviation as canada and i didn't realize that they were going by country not state

[ Bud/ShawniganLakeSchool - 590 - 17:11:32 ]
Any of the many scientists, What is the difference in color between clouds in a hurricane and clouds is a light sprinkle?

[ ElvisAlicic/CentralMiddleSchool/US - 591 - 17:11:36 ]
Dr. Strong when there is a thunderstorm what is the safest place to be other than the house and what is the most dangerous

[ adriana/shawniganlakeschool/CA - 593 - 17:11:38 ]
Mr. strong please answerrrrrrr!!!!!!!!!!!!!!!!!!!!

[ Kenny/Shaw/CA - 594 - 17:11:39 ]
How do thunder and lightning occur

[ JuLiE/ShawniganLakeSchool/CA - 595 - 17:11:46 ]
Ms Lang Rain comes from clouds, and clouds are made of h2o, is that why it rains?

[ Chris_Spence/EnvironmentCanada - 596 - 17:11:50 ]
RE: [JoeandBrennan/FersonCreek/US] DR SPENSE HOW DO YOU LIKE BEING A HYDROLOGIST?
Joe and Brennan, I like it a lot. The best part of working in Yellowknife and being a hydrologist is that I get to travel and work in remote places and spend most of my summers outside. I have seen some amazing things like huge rivers in flood, massive herds of caribou and a few to many close encounters with bears. Science has such a limited understanding of how the water cycle works in northern latitudes that I learn something new every day at work. I like that.

[ ALEX/SHAWNIGANLAKESCHOOL/CA - 597 - 17:12:03 ]
how many ways can a cloud be form

[ DianeDuncan/FersonCreekElementarySchool/US - 599 - 17:12:07 ]
Greeting Dr. Paul Ruscher, How would you classify a hurricane as a cloud type?

[ Danielle/ShawniganLakeSchool/CA - 600 - 17:12:09 ]
Dr.Strong my name is Danielle i have a question can u tll when or what time of the day will the weather cange by cloud type or cloud cover a????

[ jadimer/switzerland - 601 - 17:12:20 ]
ARE U IN SHAWNIGAN LAKE

[ PeterHardyfromPanghere - 602 - 17:12:23 ]
RE: [Andrew/EnvironmentCanada] Is his forecast a general type forecast - like worsening weather or improving weather. How would he teach someone - or is it a matter of spending lots of time looking at the skies, and remembering what happens?
Innosik says that you need to also look at where the clouds are in the sky, if they are close to mountains or touching mountains it means a north wind, which will of course bring colder weather. When you se clouds with very sharp edges the wind is not far behind.

[ Patrick/ShawniganLakeschool/CA - 603 - 17:12:47 ]
Mr.Hardy what type of clouds are on uranus?

[ DENNISDEVORE/CENTRALMIDDLESCHOOL/US - 604 - 17:12:54 ]
PAUL-RUSHER WHAT ARE THE MOST DANGEROUS CLOUDS

[ jAzmin/shawnigan/CA - 605 - 17:13:07 ]
Which way do clouds rotate.. with or against the earth??

[ TerriLang/MountainWeatherCentre - 606 - 17:13:11 ]
RE: [Boser/ShawnigawnLake/CA] Ms.Lang. I was wandering, to phisical land features affect clouds
Boser... yes! Physical features such as mountains and lakes are very important when it comes to the formation of clouds. As air gets forced up mountains, the water vapour in the air condenses and clouds form and often rain which is why Vancouver is so rainy! When the air is forced DOWN the mountain, it warms and dries and usually evaporates which is why Calgary gets chinooks. When water is around (like oceans and lakes), the moisture from the water evaporates into the air and helps to form clouds. The temperature of the water is also very important.

[ JohnZSamPSamR/FersonCreek/US - 607 - 17:13:12 ]
Dear Dr.Geoff Strong, I would like to ask you a question, How does a thunderstorm start and end? Sam.R

[ Paul_Ruscher/FSU - 609 - 17:13:17 ]
RE: [DavidHacker/CentralMiddleSchool/US] DR. RUSCHER WHAT MAKES CLOUDS PUFFY OR FLAT AND WHISPY?
Hi, David - clouds are flat if the upward motion in the atmosphere is slow and gradual. They are puffy in upward motion is rapid and not uniform. They are wispy at very high altitudes (cirrus).

[ YOKOZUNA/SHAWNIGANLAKESCHOOL/CA - 611 - 17:13:22 ]
what substances are clouds made of?

[ GeoffStrong/CloudThunderstormexpert - 612 - 17:13:36 ]
RE: [Matthew/NJMacpherson/CA] Dr geoff Strong how do the clouds around hurricans form?
Matthew, clouds form around hurricanes very much like around low pressure systems. In either case, the clouds form because the (relatively) lower pressure causes the air to 'converge' there (winds generally move from higher towards lower pressure). When the 'moist' air converges around a 'low' or a 'hurricane', it has to go upward. The upward motion causes the moist air to cool, then condense, first forming cloud, then precipitation particles as they get bigger. Hurricanes are smaller and more concentrated than 'ordinary' low pressure systems, so are more intense. The air converges more rapidly, the upward motuion is more rapid, and by forming over relatively warm oceans, the air is also 'unstable'. Hence you get inbtense thunderstorms embedded in hurricane clouds. When the hurricanes strike land, the additional turbulence with the land often sets off tornadoes as well. In the limited time we have here, I hope this answer helps. Check your web sites for more detailed information on hurricanes.

[ JacobAnderson/CentralMiddleSchool/US - 613 - 17:13:36 ]
How do the eyes of tornados and hurricanes form?

[ JasonMills/CentralMiddleSchool/US - 614 - 17:13:47 ]
Andrew How far can Hurricanes go on land.

[ TommyElder/CentralMiddleSchool/US - 615 - 17:13:47 ]
WHEN DO THE CLOUDS MOVE THE FASTEST, DR.RUSCHER?

[ TerriLang/MountainWeatherCentre - 616 - 17:13:47 ]
RE: [CarlosFrench/BostonSouthEndPublicLibrary/US] Is there any truth to the saying: "Pink clouds at night saliors delight, pink clouds in the morning sailors take warning."?
Carlos... I just answered that question so look back through the answers!

[ TommyElder/CentralMiddleSchool/US - 617 - 17:13:53 ]
WHEN DO THE CLOUDS MOVE THE FASTEST, DR.RUSCHER?

[ JuLiE/ShawniganLakeSchool/CA - 618 - 17:13:56 ]
Ms Lang Rain comes from clouds, and clouds are made of h2o, is that why it rains?

[ Matthew/NJMacpherson/NWT/CA - 619 - 17:14:03 ]
Dr. Spence are youin yellowknife right now?

[ KenanSarkic/CentralMiddleSchool/US - 620 - 17:14:03 ]
Arjen verkaik aproximatelly how many photography shots do you take a year of clouds,rainbows,fog and tornadoes?

[ JohnJacoby/CentralMiddleSchool/US - 621 - 17:14:05 ]
how is the weather in canada different from the weather in the us

[ gabby/shawniganlake/CA - 622 - 17:14:05 ]
who discovered that clouds where made of water and how do we now that they are

[ Paul_Ruscher/FSU - 623 - 17:14:10 ]
RE: [CarlosFrench/BostonSouthEndPublicLibrary/US] Is there any truth to the saying: "Pink clouds at night saliors delight, pink clouds in the morning sailors take warning."?
I've heard red sky at night, sailors delight, etc., not pink before. It is folklore that has been around for probably centuries, but it does not work in Florida!

[ jAzmin/shawnigan/CA - 624 - 17:14:19 ]
yes we started globe a long time ago too. But you said you just started studying clouds 3 weeks ago?

[ TARIATALBERT/CENTRALMIDDLESCHOOL/US - 625 - 17:14:24 ]
Cosmo girl,my favorite cloud is CUMULUS,because I think they're pleasant.

[ James/SHAWNIGANLAKESCHOOL/CA - 626 - 17:14:27 ]
what types of clouds are on pluto

[ MichaelJaclynAshley/FersonCreek/US - 627 - 17:14:31 ]
Hello, my name is Jaclyn.I have a question for Ed and Jerrine. How do clouds change into different kinds?

[ JoeandBrennan/FersonCreek/US - 628 - 17:14:35 ]
HEY CHRIS HAVE YOU BEEN AT ANY OTHER COUNTRY FOR RESEARCH?

[ Boser/ShawnigawnLake/CA - 629 - 17:14:43 ]
thank you Ms. Lang

[ Andrew/EnvironmentCanada - 630 - 17:14:52 ]
Has he lived in Pang all his life, and if not, how would he learn in a new location? Is his knowledge something that could be written down for someone else? Pang is an interesting place to forecast for as it is located in a fiord, and does not get strong winds very often, but when it does - look out!

[ GeoffStrong/CloudThunderstormexpert - 632 - 17:14:58 ]
RE: [adriana/shawniganlakeschool/CA] mr. strong what is the main thing that clouds are helpful for?
Adriana - good question. I suppose the main thing that clouds are helpful for is p;roviding the means for 'precipitation', both rain and snow. otherwise most things could not grow on land.

[ Paul_Ruscher/FSU - 633 - 17:15:12 ]
RE: [JacobAnderson/CentralMiddleSchool/US] How do the eyes of tornados and hurricanes form?
Jacob - the eyes form as air sinks in the center of the storm, or does not rise there. Clouds only form where rising motion occurs, and in tornadoes and hurricanes, the rising motion is very quick just outside the "eye" where the clouds will be tallest.

[ JasonMills/CentralMiddleSchool/US - 635 - 17:15:25 ]
When the clouds form what makes the sky turn colors

[ JohnJacoby/CentralMiddleSchool/US - 636 - 17:15:27 ]
is there anyone from anyother countries than canada or the us

[ DENNISDEVORE/CENTRALMIDDLESCHOOL/US - 637 - 17:15:38 ]
PAUL-RUSHER MY NAME IS DENNIS DEVORE AND IWAS WONDERING WHAT CLOUDS FEEL LIKE.

[ jAzmin/shawnigan/CA - 639 - 17:16:19 ]
Which way do clouds rotate? Against or with the earth?

[ paul/ShawnigawnLake/CA - 640 - 17:16:41 ]
Ms. Lang.I was wandering how do clouds finally rain

[ Pat/GLOBEHelpDesk - 641 - 17:16:43 ]
We have a couple more questions from the GLOBE students in Italy: Is there a method for measuring the precipitation intensity? How is that done? Why doesn't GLOBE use an instrument called Elianografo (in Italian) to measure cloud cover?

[ Paul_Ruscher/FSU - 642 - 17:16:44 ]
RE: [Patrick/ShawniganLakeschool/CA] Mr.ruscher. are there clouds on venus and what type?
Clouds on Venus are made of carbon dioxide, primarily. A very heavy atmosphere there! Now that I've answered about Mars and Jupiter too I'll have to not answer any other questions about planetary clouds, because that is about all I know about the other planets' atmospheres, I'm afraid! Most of the outer planets and some of the moons of Jupiter and Saturn at least are known to have atmospheres of various light gases.

[ Chris_Spence/EnvironmentCanada - 643 - 17:16:45 ]
RE: [carternjmacpherson] hi my name is carter stirling i live in yellowknife nwt canada I got to nj macpherson. I have a question for mr chris spence. do acid rain clouds have a certain ph level or a certain ph level range
Carter, I'm not sure; perhaps one of the other experts could help out. Rain is formed by water vapour binding to a dust particle. Acid rain is created when that dust particle is something like sulpher or something else that may turn acidic when in contact with water. Remember that acid rain and their clouds are only slightly acidic, maybe with a pH of 6, but in some areas that subtle change in acidity of the rain makes a big difference for the plants.

[ 3RDGRADEMRSADAMS/HOLYREDEEMERCATHOLICSCHOOL/US - 644 - 17:16:50 ]
Ralphie asks:How do clouds change from one shape to another?

[ cosmo_girl/ShawniganLakeSchool/CA - 645 - 17:16:51 ]
ms.lang thanx for the answers

[ PeterHardyfromPanghere - 646 - 17:16:53 ]
Inoosik says also: When you notice the ring around the sun it means there will be wind and snow together. when you see a ring around the moon it means there will be just snow. Also when the stars are twinkling in a clear sky it means the wind has already begun but is still high up and it be windy in about two days

[ JasonMills/CentralMiddleSchool/US - 647 - 17:16:54 ]
Wayne,what does clouds fell like

[ Adriana/ShawniganLakeSchool/CA - 648 - 17:16:56 ]
Thankyou Mr Strong

[ TerriLang/MountainWeatherCentre - 649 - 17:17:05 ]
RE: [JuLiE/ShawniganLakeSchool/CA] Ms Lang Rain comes from clouds, and clouds are made of h2o, is that why it rains?
Julie.. yes. Cloud particles are just very tiny water droplets. When there is enough water vapour absorbed by the cloud, the drops get bigger. And when the drops get big enough, it rains! Remember that ice is frozen water so when it snows, you are also getting more H2O just in the frozen form!

[ JohnJacoby/CentralMiddleSchool/US - 650 - 17:17:44 ]
sun from canada who were you writing too

[ Paul_Ruscher/FSU - 651 - 17:17:46 ]
RE: [Bud/ShawniganLakeSchool] Any of the many scientists, What is the difference in color between clouds in a hurricane and clouds is a light sprinkle?
Usually the main difference in rainfall intensity is the intensity of the rising motion in the cloud, but the amount of water vapor (humidity) available in the atmosphere in the vicinity of the cloud also matters a lot!

[ Stratus/ShawniganLake/CA - 653 - 17:17:48 ]
How does hail form in clouds?

[ TARIATALBERT/CENTRALMIDDLESCHOOL/US - 654 - 17:17:52 ]
Yes we did learn about clouds three weeks ago,but we were recording the weather temperature and the clouds on the computer.

[ Mia/ShawniganLakeSchool/CA - 655 - 17:17:56 ]
Thank you for everyone who answerd my questions!:)

[ TerriLang/MountainWeatherCentre - 656 - 17:17:57 ]
RE: [paul/ShawnigawnLake/CA] Ms. Lang.I was wandering how do clouds finally rain
Paul.. I just answered that question for Julie. Thanks for asking!

[ JuLiE/ShawniganLakeSchool/CA - 657 - 17:18:07 ]
Thankyou Ms Lang

[ ben/shawniganlakeschool - 658 - 17:18:11 ]
SEAN, do AIRPLANES kill CLOUD

[ TeacherAttagoyukSchool/AttagoyukIlisavik/CA - 659 - 17:18:22 ]
Carlos, I have heard the same thing but Red sky at night is a shepherds delight Red sky in morning is a shepherds warning . It is true particularly in countrys like the UK where most weather moves across the country quickly with most fronts sweeping from the west. It is also true in the Arctic.

[ ArjenEdandJerrineGLOBEexp - 661 - 17:18:43 ]
RE: [KenanSarkic/CentralMiddleSchool/US] Arjen verkaik aproximatelly how many photography shots do you take a year of clouds,rainbows,fog and tornadoes?
About 5000, including lightning. We travel all over the place to get the best pictures and we have more than 60,000 photos.

[ Paul_Ruscher/FSU - 662 - 17:18:44 ]
RE: [Kenny/Shaw/CA] How do thunder and lightning occur
Lightning occurs in tall clouds because there are areas of positive and negative charges, and electricity can flow between them. Thunder will occur after a lightning strike due to the intense heating and compression that follows.

[ TedEricLoren/FersonCreekElementry/US - 663 - 17:18:48 ]
Dear Ed and Jerrine , where is the most beautiful place you have been to, and what is the most beautiful type of cloud you have seen?

[ JasonMills/CentralMiddleSchool/US - 664 - 17:18:59 ]
Wayne how many clouds are there

[ GeoffStrong/CloudThunderstormexpert - 665 - 17:19:04 ]
RE: [ElvisAlicic/CentralMiddleSchool/US] Dr. Strong when there is a thunderstorm what is the safest place to be other than the house and what is the most dangerous
ElvisAlicic, the safest place is probably in a vehicle (not convertible), or well inside a steel structure building. The steel casing transfers the electric charge to ground well. The most dangerous place would be under a tree or tower on a relatively high location (say a hill on a gold course) - stay away from there!

[ Chris_Spence/EnvironmentCanada - 666 - 17:19:23 ]
RE: [Matthew/NJMacpherson/NWT/CA] Dr. Spence are youin yellowknife right now?
Matthew, Yup. I've lived here for six and a half years.

[ Paul_Ruscher/FSU - 668 - 17:19:36 ]
RE: [DENNISDEVORE/CENTRALMIDDLESCHOOL/US] PAUL-RUSHER WHAT ARE THE MOST DANGEROUS CLOUDS
Denise - without a doubt, cumulonimbus are the most dangerous because they are associated with heavy rain, lightning, and even severe weather like hail, tornadoes, and strong, damaging winds.

[ PeterHardyfromPanghere - 669 - 17:19:39 ]
RE: [Andrew/EnvironmentCanada] Has he lived in Pang all his life, and if not, how would he learn in a new location? Is his knowledge something that could be written down for someone else? Pang is an interesting place to forecast for as it is located in a fiord, and does not get strong winds very often, but when it does - look out!
Inoosk says that his knowledge works all over the arctic. He knows the weather up here.

[ KATHRYNHUSARJENNYMOORE//Unknown - 670 - 17:19:43 ]
This is Kathryn from Ferson Creek Elementary School and I have a question for Chris Spense. How do you use tree rings to tell of past climates?

[ LUCY/QAQQALIK/CA - 672 - 17:19:50 ]
Hi! I'm from Nunavut,Canada, anyone care to teach me something about clouds?

[ GeoffStrong/CloudThunderstormexpert - 673 - 17:19:53 ]
RE: [Adriana/ShawniganLakeSchool/CA] Thankyou Mr Strong
You are most welcome. Sorry if we are slow or miss questions. Just try again if we don't catch your question the first time.

[ Paul_Ruscher/FSU - 674 - 17:19:59 ]
RE: [YOKOZUNA/SHAWNIGANLAKESCHOOL/CA] what substances are clouds made of?
Yokozuna - clouds are made of ice crystals or water drops.

[ TerriLang/MountainWeatherCentre - 675 - 17:20:03 ]
RE: [3RDGRADEMRSADAMS/HOLYREDEEMERCATHOLICSCHOOL/US] Ralphie asks:How do clouds change from one shape to another?
Ralphie... clouds change shape as the air moves through them. Some air is rising, some is sinking. When air rises, more clouds form. When air is sinking, the clouds disappear. When the air is forced over hills and mountains, or over water, this can change the form quite a bit.

[ DENNISDEVORE/CENTRALMIDDLESCHOOL/US - 676 - 17:20:12 ]
ARJEN WHAT MAKES THE EARTH TURN

[ JasonMills/CentralMiddleSchool/US - 677 - 17:20:20 ]
Thankyou Wayne for anwsing my question

[ Chris_Spence/EnvironmentCanada - 678 - 17:20:30 ]
Joe and Brennan, No I haven't, but would love to do research work in Scotland, Australia or even the United States (I love Wyoming).

[ Paul_Ruscher/FSU - 679 - 17:20:36 ]
RE: [TommyElder/CentralMiddleSchool/US] WHEN DO THE CLOUDS MOVE THE FASTEST, DR.RUSCHER?
Clouds move the fastest, Tommy, when the jet stream is blowing them around (downstream). This can be 100 meters per second or stronger for very strong jet streams.

[ JacobAnderson/CentralMiddleSchool/US - 680 - 17:20:38 ]
how hot is lighning?

[ JoeandBrennan/FersonCreek/US - 681 - 17:20:52 ]
MR. FAAS, WHAT DO YOU DO WITH ALL THE DATA YOU COLLECT

[ Andrew/EnvironmentCanada - 682 - 17:20:57 ]
RE: [PeterHardyfromPanghere] Inoosk says that his knowledge works all over the arctic. He knows the weather up here.
I'd enjoy hearing some of his other hints - we can always learn more from an expert.

[ AttagoyukSchoolStudents/AttagoyukIlisavik/CA - 683 - 17:21:03 ]
Hi my name is Patricia Veevee and my question is how is your weather there and what is it like?

[ carternjmacpherson - 684 - 17:21:11 ]
I have a question for terri lang and my name is carter stirling from yellowknife nwt Canada . Iam wondering since sometimes on mountains the snow is hard packed, would that effecct evaporation in the water cycle?

[ AttagoyukStudent/AtagoyukIlisavik/Unknown - 685 - 17:21:20 ]
How is your weather today? Is it sunny there? Does it have any clouds there today? Is it windy there today? Do you have any thunder lightning there?

[ NoraAmeliaMattFromFersonCrek - 686 - 17:21:48 ]
How do thunderstorms affect the atmosphere? Dr. Geoff Strong.

[ MattWakefield/CentralMiddleSchool/US - 687 - 17:21:50 ]
Y do different places in the world have different weather?

[ Matthew/NJMacpherson/NWT/CA - 688 - 17:21:54 ]
Dr Spence i am at N.J. Macpherson schhol in the library. So do you like Whatchin g clouds?"

[ JasonMills/CentralMiddleSchool/US - 689 - 17:22:05 ]
Wayne what is the puffyest cloud is there

[ Paul_Ruscher/FSU - 690 - 17:22:14 ]
RE: [gabby/shawniganlake/CA] who discovered that clouds where made of water and how do we now that they are
Hi, Gabby - Luke Howard was one of the first meteorologists to classify clouds around 1803 or so. Benjamin Franklin studied them, too, in the 1700's, as did other scientists around the world. But native peoples all over the world, including Mayan, Korean, Egyptian, Mori, and Inuit peoples all have stories dating back hundreds of more years.

[ PeterHardyfromPanghere - 691 - 17:22:25 ]
Some more ways of telling the weather in the arctic, when the sky near the mountains turns dark it will be south wind weather, bad blizzard and snow and strong wind. The north wind is cold but clear weather. Inoosik says also that the hardest weather to know is foggy conditions.

[ TerriLang/MountainWeatherCentre - 692 - 17:22:26 ]
RE: [JacobAnderson/CentralMiddleSchool/US] how hot is lighning?
Jacob... lightning can be up to 30,000 degrees celcius which is 5 times the temperature of the sun!! It happens in just a flash, heating the air around it very quickly which causes the air to expand very rapidly then you get thunder!!

[ DENNISDEVORE/CENTRALMIDDLESCHOOL/US - 693 - 17:22:34 ]
PAUL-RUSCHER WHAT DO CLOUDS FEEL LIKE

[ JohnJacoby/CentralMiddleSchool/US - 694 - 17:22:34 ]
Arjen what makes cumulonimbus clouds

[ Paul_Ruscher/FSU - 696 - 17:22:42 ]
RE: [DENNISDEVORE/CENTRALMIDDLESCHOOL/US] PAUL-RUSHER MY NAME IS DENNIS DEVORE AND IWAS WONDERING WHAT CLOUDS FEEL LIKE.
Hi, Denise - clouds may look like cotton sometimes, but they just feel wet!

[ Andrew/EnvironmentCanada - 697 - 17:22:46 ]
RE: [LUCY/QAQQALIK/CA] Hi! I'm from Nunavut,Canada, anyone care to teach me something about clouds?
My advice is to look at the clouds and enjoy their beauty - every day is different. After a while you'll become familiar with some patterns that repeat and learn to forecast what will happen next when you see that pattern again.

[ JasonMills/CentralMiddleSchool/US - 698 - 17:23:10 ]
Andrew,whats makes the clouds move so fast

[ JohnZSamPSamR/FersonCreek/US - 699 - 17:23:42 ]
Mr. Giles Dear Mr. Giles,Hello I am John I would like to know have you ever seen all the clouds at once?Exept Cumulonimbus.

[ JohnJacoby/CentralMiddleSchool/US - 700 - 17:23:44 ]
any of the scientists can you capture pieces of clouds?

[ LeahAshleySarah/FersonCreek/Unknown - 701 - 17:24:01 ]
Dr. Paul Ruscher. How is a cloud born

[ TommyElder/CentralMiddleSchool/US - 702 - 17:24:04 ]
THANK YOU FOR ANSWERING MY QUESTION DR.ROSCHER.

[ JacobAnderson/CentralMiddleSchool/US - 703 - 17:24:15 ]
how fast is lighting?

[ Paul_Ruscher/FSU - 704 - 17:24:31 ]
RE: [Pat/GLOBEHelpDesk] We have a couple more questions from the GLOBE students in Italy: Is there a method for measuring the precipitation intensity? How is that done? Why doesn't GLOBE use an instrument called Elianografo (in Italian) to measure cloud cover?
Hi, Pat and the students in Italy. Precipitation intensity can be measured with any rain gauge, it is the amount divided by the time. A recording rain gauge (like a tipping bucket rain gauge, or hyetograph) can be used to get intensity directly. Radar also measures precipitation intensity. An instrument called a ceilometer can measure cloud cover. I don't know if that is the same as is used in Italy.

[ KyleCorson/Centralmiddleschool/US - 705 - 17:24:36 ]
how tall is the talllest cloud?

[ Chris_Spence/EnvironmentCanada - 706 - 17:24:56 ]
RE: [KATHRYNHUSARJENNYMOORE//Unknown] This is Kathryn from Ferson Creek Elementary School and I have a question for Chris Spense. How do you use tree rings to tell of past climates?
Kathryn, Evergreen trees go dormant every winter up north and so have one tree ring for each year. The wetter and warmer the year is, the happier the tree is, the more the tree grows and the the tree ring for that year gets wider. We measure the widths of all the tree rings from many many trees and relate these to temperature and precipitation from our weather records. Because our weather records here in Canada's north are maybe 40 years old but the trees are a few hundred years old, we can estimate past weather back through the life of the trees, which can be into the 1600's.

[ TedEricLoren/FersonCreekElementry/US - 707 - 17:24:59 ]
Dear Dr. Paul Rusher, What are clouds made of?

[ DENNISDEVORE/CENTRALMIDDLESCHOOL/US - 708 - 17:25:06 ]
PAUL-RUSCHER HOW CAN YOU TELL IF CLOUDS ARE BOY OR GIRL.

[ Paul_Ruscher/FSU - 709 - 17:25:18 ]
RE: [Stratus/ShawniganLake/CA] How does hail form in clouds?
Hi, stratus - hail can form in cumulonimbus clouds with very strong updrafts, as it falls through different parts of the clouds, ice can accumulate then melt on the outside, then accumulate again.

[ JohnJacoby/CentralMiddleSchool/US - 710 - 17:25:20 ]
how many instruments are there to predict the weather

[ TARIATALBERT/CENTRALMIDDLESCHOOL/US - 711 - 17:25:33 ]
Ms.Terri Lang what made you want to take up this profession?

[ TerriLang/MountainWeatherCentre - 712 - 17:25:40 ]
RE: [carternjmacpherson] I have a question for terri lang and my name is carter stirling from yellowknife nwt Canada . Iam wondering since sometimes on mountains the snow is hard packed, would that effecct evaporation in the water cycle?
Carter.. good question. The snow in the mountains can be very hard packed plus it is high up there and is slow to melt. This snow is very important to the water cycle. In the valleys, the snow melts pretty quickly once spring arrives, but the snow in the mountains is much slower to melt. It will melt slowly during the summer, slowly adding water to the lakes and rivers which is needed by animals and humans! Sometimes, this snow never melts which is how glacier are formed which are also important to the water cycle as glaciers store a tremendous amount of water.

[ Paul_Ruscher/FSU - 713 - 17:25:46 ]
RE: [TerriLang/MountainWeatherCentre] Paul.. I just answered that question for Julie. Thanks for asking!
Thanks, Terri - very tough to keep up!

[ KenanSarkic/CentralMiddle/US - 714 - 17:26:07 ]
Dr. Strong what are the instrumented weather balloons called that you use when specializing thunderstorm and atmospheric moisture?

[ JohnJacoby/CentralMiddleSchool/US - 715 - 17:26:07 ]
how can hail only form in the summer or during hot weather when they are ice?

[ GeoffStrong/CloudThunderstormexpert - 716 - 17:26:23 ]
RE: [Stratus/ShawniganLake/CA] How does hail form in clouds?
Hail forms in 'thunderstorm clouds', usually because of an ice crystal (or frozen rain droplet), which is carried upward in a strong updraft, collects smaller rain/cloud droplets as it goes up, and gets larger. Each large water droplet makes a full layer on the hailstone when it freezes. If you cut a large hailstone in half, you will see the layers of growth, telling you something about its short history, much lik tree rings. Some hailstones are thought to make several traverses up and down in the cloud, getting 'very large'. Eventually, the hailstone gets large enough that gravity overcomes the cloud updraft, and it must fall through. When enough of the hailstones (and large raindrops) start falling, they destroy the updraft, creating a downdraft, and this usually starts the thunderstorm decay process. In between, you sometimes get interactions between the updraft and downdraft (near the heaviest precipitation), and 'tornadoes' are often the result of this interaction.

[ Andrew/EnvironmentCanada - 717 - 17:26:24 ]
RE: [JohnZSamPSamR/FersonCreek/US] Mr. Giles Dear Mr. Giles,Hello I am John I would like to know have you ever seen all the clouds at once?Exept Cumulonimbus.
No - you usually see a certain group of clouds together as the pattern to form one group of clouds is different from another. For example to get stratus you need cool air and lots of moisture close to the ground whereas to get cumulonimbus, you need lots of heat and moisture. Cirrus is formed by high level moisture.

[ LornaAttagoyukStudent/AtagoyukIlisavik/Unknown - 718 - 17:26:26 ]


[ Paul_Ruscher/FSU - 719 - 17:26:39 ]
RE: [TeacherAttagoyukSchool/AttagoyukIlisavik/CA] Carlos, I have heard the same thing but Red sky at night is a shepherds delight Red sky in morning is a shepherds warning . It is true particularly in countrys like the UK where most weather moves across the country quickly with most fronts sweeping from the west. It is also true in the Arctic.
In Florida, we are in the tropics, so much of our weather comes at us from the east in the summer, and the west in the winter...that might explain why it does not work everywhere!

[ TARIATALBERT/CENTRALMIDDLESCHOOL/US - 720 - 17:26:39 ]
Mr. Paul Ruscher can a cloud dissolve?

[ PeterHardyfromPanghere - 721 - 17:26:44 ]
Inoosik also told us that the presence of long dark low stratus clouds with puffy white clouds above them means that there is open water in the sea ice or an open lead in the ice. This is good for hunting walrus or seal but it is hard for travel because you cannot get across.

[ JohnJacoby/CentralMiddleSchool/US - 722 - 17:27:18 ]
how come noone answers my questions?

[ Paul_Ruscher/FSU - 723 - 17:27:20 ]
RE: [LUCY/QAQQALIK/CA] Hi! I'm from Nunavut,Canada, anyone care to teach me something about clouds?
Hi, Lucy - please ask a question and I'm sure one of the experts will be happy to answer!

[ TommyElder/CentralMiddleSchool/US - 724 - 17:27:29 ]
WHATS UP DAVID AND HACKER

[ EmilyKatherineJordan/FersonCreek/US - 725 - 17:27:38 ]
Dear Andrew Giles, Hi, I'm Emily from Ferson Creek. Do you like the data that we send?

[ TerriLang/MountainWeatherCentre - 726 - 17:27:41 ]
RE: [TARIATALBERT/CENTRALMIDDLESCHOOL/US] Ms.Terri Lang what made you want to take up this profession?
Taria... thanks for asking. As a youngster, I was always interested in science stuff.. stars, volcanoes, hurricanes. So when it came down to what I wnated to study, it was weather. And I love the weather. It is always different, always changing and always a challenge to forecast.

[ Chris_Spence/EnvironmentCanada - 727 - 17:27:57 ]
RE: [Matthew/NJMacpherson/NWT/CA] Dr Spence i am at N.J. Macpherson schhol in the library. So do you like Whatchin g clouds?"
Matthew, Yes, I do like watching clouds, especially when there are lots of the big puffy ones in the sky. I also love the big thunderheads.

[ ArjenEdandJerrineGLOBEexp - 728 - 17:28:01 ]
RE: [3RDGRADEMRSADAMS/HOLYREDEEMERCATHOLICSCHOOL/US] Ralphie asks:How do clouds change from one shape to another?
Clouds either change shape because they are getting larger or because they are shrinking, but low clouds are also shaped by the ground they move over. Clouds can be stretched out by the wind so they are long strands. Sometimes a sheet of clouds can break up into crumbly elements. This is caused by very slow evaporation. In general, the shapes of cloud is like a tug of war between the wind that is carrying them along and any up and down motion inside the cloud. Since the cloud parts are like patches of fog high up in the sky, their edges are always changing because they are surrounded by drier air.

[ ElvisAlicic/CentralMiddleSchool/US - 730 - 17:28:13 ]
Thank You Dr. Strong for answering my question.

[ Matthew/NJMacpherson/NWT/CA - 731 - 17:28:15 ]
Mr. Hardy are there clouds on other planets?

[ TerriLang/MountainWeatherCentre - 733 - 17:28:34 ]
RE: [JohnJacoby/CentralMiddleSchool/US] how come noone answers my questions?
John... please ask your question again. There are so many questions!

[ JasonMills/CentralMiddleSchool/US - 734 - 17:28:45 ]
Andrew was up I got a question Do all clouds have Latin roots

[ TommyElder/CentralMiddleSchool/US - 735 - 17:29:03 ]
HOW ARE YOU ALL DOING TODAY?????????

[ MichaelJaclynAshley/FersonCreek/US - 736 - 17:29:09 ]
Hello I'm Ashley, I have a question for Ed and Jerrine Verkaik. About how long does it take before a tornado stops?

[ Victoria/GLOBE - 737 - 17:29:17 ]
RE: [JohnJacoby/CentralMiddleSchool/US] how come noone answers my questions?
Please have some patience. Lots and lots of questions are flying at us. Please repeat your question.

[ JacobAnderson/CentralMiddleSchool/US - 738 - 17:29:20 ]
what is the speed of lighting?(miles per hour)

[ wayne/TomNCDC - 739 - 17:29:32 ]
RE: [JasonMills/CentralMiddleSchool/US] Wayne what is the tallest cloud you ever seen
The highest clouds are called Noctilucent clouds at about 80 km, they are not visible by day and can only be seen for short times at various latitudes.

[ Paul_Ruscher/FSU - 740 - 17:29:50 ]
RE: [LeahAshleySarah/FersonCreek/Unknown] Dr. Paul Ruscher. How is a cloud born
Hi, Leah - clouds are born when humid air rises.

[ 5thGRADEMRSADAMS/HOLYREDEEMERCATHOLICSCHOOL/US - 741 - 17:29:53 ]
Grade 5-Kelly asks: What makes black clouds look black?

[ JoeandBrennan/FersonCreek/US - 742 - 17:30:09 ]
HEY DR SPENCE HOW DID YOU BE COME A HYDROLAGIST AND WHY

[ PeterHardyfromPanghere - 743 - 17:30:33 ]
RE: [KyleCorson/Centralmiddleschool/US] how tall is the talllest cloud?
Hi Kyle it depends where you are on the earths surface. Clouds near the equator can be up to around 17km tall while clouds in the arctic are rarely higher than 8-10 km! This is because clouds are limited to the troposphere which is a thicker layer at the equator

[ NoraAmeliaMattFromFersonCrek - 744 - 17:31:02 ]
Mr.Spense, Does surface runoff make a difference on river level?

[ Chris_Spence/EnvironmentCanada - 745 - 17:31:05 ]
RE: [TerriLang/MountainWeatherCentre] Taria... thanks for asking. As a youngster, I was always interested in science stuff.. stars, volcanoes, hurricanes. So when it came down to what I wnated to study, it was weather. And I love the weather. It is always different, always changing and always a challenge to forecast.
Terri, Are you the same Terri Lang who took Geography at the University of Regina?

[ TARIATALBERT/CENTRALMIDDLESCHOOL/US - 746 - 17:31:08 ]
Ms.Terri Lang how long have you been working as Mountain Weather Centre?

[ Paul_Ruscher/FSU - 747 - 17:31:09 ]
RE: [DENNISDEVORE/CENTRALMIDDLESCHOOL/US] PAUL-RUSCHER HOW CAN YOU TELL IF CLOUDS ARE BOY OR GIRL.
Hi, Denise, clouds are not given boy or girl names...but hurricanes are.

[ JohnJacoby/CentralMiddleSchool/US - 748 - 17:31:18 ]
How come hail can form when its hot outside

[ Jimmy/Qaqqalik/CA - 749 - 17:31:33 ]
Dr.Paul Rusher, I have a question for you.How does cumulonibus

[ LUCY/QAQQALIK/CA - 750 - 17:31:35 ]
Why is it snow in the winter instead of rain? Do the clouds form the snow because it freezes?

[ TerriLang/MountainWeatherCentre - 751 - 17:31:36 ]
RE: [JacobAnderson/CentralMiddleSchool/US] what is the speed of lighting?(miles per hour)
Jacob.. the speed of lightning is the speed of light which is about 3 x 10-8 m/s which is very very fast! The light from the sun travels at the speed of light and it takes light from the sun about 8 minutes to reach Earth. The Earth is 93 million miles from the sun. Pretty incredible!

[ MitchellZuck/CentralMiddleSchool/US - 752 - 17:31:45 ]
what is the difference between fog and smog?

[ wayne/TomNCDC - 753 - 17:31:55 ]
RE: [JasonMills/CentralMiddleSchool/US] Wayne what is the tallest cloud you ever seen
The highest clouds are called Noctilucent clouds at about 80 km, they are not visible by day and can only be seen for short times at various latitudes.

[ carternjmacpherson - 754 - 17:31:56 ]
I have a question for M rChris Spence. In some storms do the rain molecules get more loose or packed? (like in thunder or rain storms)

[ GeoffStrong/CloudThunderstormexpert - 755 - 17:32:00 ]
RE: [KenanSarkic/CentralMiddle/US] Dr. Strong what are the instrumented weather balloons called that you use when specializing thunderstorm and atmospheric moisture?
KenanSarkic, you just hit upon my very favorite metgeorological instrument. That is the 'radiosonde', or sometimes called 'rawinsonde' (both essentially the same thing). These 'sondes' contain sensors for temperature, humidity, and pressure, and they also contain a small radio transmitter to send data back to your ground station where you released your balloon. The balloon and sonde are 'tracked' using either a radio theodolite, radar, optical theodolite, or more recently, satellite GPS systems. The tracking tells you where the sonde is at all times, and from this you can compute wind direction and speed. Today's sondes sned back these data every second or so. They go upward at a rate of about 5 meters per second, which means you collect data aspproximately every 5 meters.

[ LeahAshleySarah/FersonCreek/Unknown - 756 - 17:32:01 ]
peter Hardy hello. This is Sarah. Do you do soil temperatures with the Pang students or do you have any soil?

[ ArjenEdandJerrineGLOBEexp - 757 - 17:32:12 ]
RE: [TedEricLoren/FersonCreekElementry/US] Dear Ed and Jerrine , where is the most beautiful place you have been to, and what is the most beautiful type of cloud you have seen?
We are on love with clouds in all their shapes and forms, nut I (Jerrine) particularly like clouds that look sculpted. That can happen in a severe thunderstorm or when wave clouds are formed in the lee of high land like the Rocky Mountains. Generally we enjoy the western skies because the air is so clear, thereb is great visibility and, in particular, we have really enjoyed Wyoming and Saskatchewan. But for those of you blessed to be way up north, we really love the northern lights, too!

[ ElvisAlicic/CentralMiddleSchool/US - 758 - 17:32:14 ]
Terri Lang how much pricipitation can one cloud produce when it is condesed.

[ IsobelEmily/NJMacpherson/CA - 759 - 17:32:21 ]
Mr. Andrew Giles- Can you identify the weather by finding out the temperature of the clouds?

[ TerriLang/MountainWeatherCentre - 760 - 17:32:25 ]
RE: [Chris_Spence/EnvironmentCanada] Terri, Are you the same Terri Lang who took Geography at the University of Regina?
Chris... yes, I am. I read your biography and thought, do I know this person??

[ JohnJacoby/CentralMiddleSchool/US - 761 - 17:32:27 ]
How can hurricanes have boy or girl names

[ TommyElder/CentralMiddleSchool/US - 762 - 17:32:41 ]
HOW LONG DO CLOUDS LAST?????????????????????????????????????????????

[ TARIATALBERT/CENTRALMIDDLESCHOOL/US - 763 - 17:32:56 ]
Can the weather effect a volcano erruption?

[ JohnZSamPSamR/FersonCreek/US - 764 - 17:33:05 ]
Dear Dr. Chris Spence, I would like to ask you a question, What year was the water cycle heard in? Sam.R

[ DavidHacker/CentralMiddleSchool/US - 765 - 17:33:09 ]
ARE HURICANES STARTED BY CLOUDS DR. RUSCHER?

[ DavidHacker/CentralMiddleSchool/US - 766 - 17:33:09 ]
ARE HURICANES STARTED BY CLOUDS DR. RUSCHER?

[ TerriLang/MountainWeatherCentre - 767 - 17:33:30 ]
RE: [TARIATALBERT/CENTRALMIDDLESCHOOL/US] Ms.Terri Lang how long have you been working as Mountain Weather Centre?
Taria... I have been at the Mountain Weather Centre for just over 5 years now. I also spend 3 years in Saskatoon, Saskatchewan as a forecaster and 3 years in Winnipeg, Manitoba forecasting there. I love Kelowna very much for its excellent weather and beautiful scenary.

[ JasonMills/CentralMiddleSchool/US - 768 - 17:33:31 ]
Wayne what is the

[ Jimmy/Qaqqalik/CA - 769 - 17:33:37 ]
How does cumulonimbus form?

[ TedEricLoren/FersonCreekElementry/US - 770 - 17:33:40 ]
wayne faas what is it like being the chief of Noaa

[ KenanSarkic/CentralMiddle/US - 771 - 17:33:57 ]
Dr. Ruscher how many different cluds

[ Andrew/EnvironmentCanada - 772 - 17:34:02 ]
RE: [IsobelEmily/NJMacpherson/CA] Mr. Andrew Giles- Can you identify the weather by finding out the temperature of the clouds?
That's one thing we use - to tell us whether it will rain or snow. We also use satellite pictures to show us where the clouds are moving.

[ SimoneMazzurelli/IstitutoTecnicoIndustrialeFermiMantova/Unknown - 773 - 17:34:15 ]
Why does the altitude influences the shape (the types) of clouds?

[ Chris_Spence/EnvironmentCanada - 774 - 17:34:17 ]
RE: [JoeandBrennan/FersonCreek/US] HEY DR SPENCE HOW DID YOU BE COME A HYDROLAGIST AND WHY
Joe and Brennan, I've always liked the outdoors and when I went to university I enjoyed learning about how the natural environment works. I enjoyed biology, geomorphology (the study of landforms) and hydrology. Once I got a good university education, opportunities presented themselves in the water resources field and I was able to get a job as a hydrolgist.

[ Paul_Ruscher/FSU - 775 - 17:34:20 ]
RE: [TedEricLoren/FersonCreekElementry/US] Dear Dr. Paul Rusher, What are clouds made of?
Hi, Ted - clouds are made of water droplets and ice crystals...I may have answered this already, sorry if it is repetitive.

[ PeterHardyfromPanghere - 776 - 17:34:58 ]
RE: [Matthew/NJMacpherson/NWT/CA] Mr. Hardy are there clouds on other planets?
Yes Mathew, If a planet has an atmosphere it may have clouds. The moon has no atmosphere so no clouds. On some planets the clouds are formed from gases other than water.

[ Matthew/NJMacpherson/NWT/CA - 777 - 17:35:25 ]
Mr. Giles is there clouds on other planets?

[ JasonMills/CentralMiddleSchool/US - 778 - 17:35:29 ]
Wayne what is the longest time cloud lasted

[ wayne/TomNCDC - 779 - 17:35:33 ]
RE: [LUCY/QAQQALIK/CA] Why is it snow in the winter instead of rain? Do the clouds form the snow because it freezes?
That depends on the actual air temperature in the clouds and on the ground. If the temperatures is generally below 32F or 0C in the cloud layer where it is precipitating and on the ground it will usuallysnow, but sometine there are different layers of air with different temperatures to deal with.

[ JohnJacoby/CentralMiddleSchool/US - 780 - 17:35:34 ]
How come hail can form when its' hot outside when they're made of ice?

[ Paul_Ruscher/FSU - 781 - 17:35:45 ]
RE: [TARIATALBERT/CENTRALMIDDLESCHOOL/US] Mr. Paul Ruscher can a cloud dissolve?
Hi, Taria - great question! Clouds can dissolve in fact! If air sinks in a cloud, it will warm up and the humidity will decrease, so water drops will evaporate, making it look like the cloud dissolves. That is how most fog dissipates. We use the word dissipate rather than dissolve, but the idea is similar.

[ GeoffStrong/CloudThunderstormexpert - 782 - 17:36:09 ]
RE: [JohnJacoby/CentralMiddleSchool/US] how can hail only form in the summer or during hot weather when they are ice?
JohnJacoby, good question! And the answer is, because on even a hot summer day, the freezing level is still between 3 and 5 kilometres (10,000 - 15,000 feet) above sea level. Precipitation particles in thunderstorms are carried to 6-10 kilometers into the cloud where it is freezing. The improtant part of your question, however, is that SMALL HAILSTONES (say, less than 1/2 inch diameter), will often melt before it hits the ground. So, you know that a large hailstone on the ground was larger within the cloud, and partly melts on the way down below cloud base.

[ Paul_Ruscher/FSU - 783 - 17:36:10 ]
RE: [JohnJacoby/CentralMiddleSchool/US] how come noone answers my questions?
Sorry, John - please ask again - I must have missed your question about clouds.

[ JoeandBrennan/FersonCreek/US - 784 - 17:36:18 ]
DR SPENCE HOW DOES THE WATER CYCLE WORK?

[ TerriLang/MountainWeatherCentre - 785 - 17:36:25 ]
RE: [ElvisAlicic/CentralMiddleSchool/US] Terri Lang how much pricipitation can one cloud produce when it is condesed.
Elvis... clouds can produce an tremendous amount of precipitation when it is condensed. Some clouds produce very little (which is why not all clouds have rain or snow coming from them). Cumulonimbus clouds are the best precipitation producers. During one storm that hit Saskatchewan a number of years ago, over 250 mm of rain fell in just over an hour! That is a lot rain!

[ ArjenEdandJerrineGLOBEexp - 786 - 17:36:28 ]
RE: [JohnJacoby/CentralMiddleSchool/US] How come hail can form when its hot outside
Storm clouds are very tall, reaching up many miles into the sky. Although it's warm down here, the temperature gets colder and colder as you go higher and higher. Once you rise above about 12,000 feet the temperature bdrops below zero, so air that is rising above this level will carry droplets up that freeze and gradually grow larger as they bump into other raindrops, forming a hail stone. As the stone falls, it is cold enough to onle partly melt before it hits the ground. So while you are sweltering on a summer day, the tops of those brilliant thunderheads are in a very cold windy part of the atmosphere.

[ Matthew/NJMacpherson/NWT/CA - 787 - 17:36:42 ]
Mr. Giles To support life do you need clouds?

[ MitchellZuck/CentralMiddleSchool/US - 788 - 17:36:55 ]
what is the longest a cloud can last?

[ Paul_Ruscher/FSU - 789 - 17:37:02 ]
RE: [5thGRADEMRSADAMS/HOLYREDEEMERCATHOLICSCHOOL/US] Grade 5-Kelly asks: What makes black clouds look black?
Very thick clouds may not let enough light through them to appear white, and so they appear very dark, even black.

[ TARIATALBERT/CENTRALMIDDLESCHOOL/US - 790 - 17:37:33 ]
Ms.Terri Lang thank you for answering my question!Do you ever plan on changing careers?

[ Chris_Spence/EnvironmentCanada - 791 - 17:37:35 ]
RE: [NoraAmeliaMattFromFersonCrek] Mr.Spense, Does surface runoff make a difference on river level?
If what you mean by surface runoff is water you seeing flowing down a hillslope, yes. It will eventually reach a river adding to the flow, increasing the water level.

[ wayne/TomNCDC - 792 - 17:37:43 ]
RE: [JohnJacoby/CentralMiddleSchool/US] How can hurricanes have boy or girl names
Every 10 years meteorologists get together to comeup with yearly lists of names for storms. They now have male/female names and there are different global ocean basins...

[ agoyukIlisavik/Unknown - 793 - 17:37:55 ]
Hi my name is Lorna Keyuakjuk, Were in the Arctic in Pangnirtung and we have claer sky. Were do you live and whats your weather like?

[ SimoneReggiani/IstitutoTecnicoIndustrialeFermiMantova/IT - 794 - 17:37:57 ]
Can clouds be classified also according to weight criteria?

[ JasonMills/CentralMiddleSchool/US - 795 - 17:38:10 ]
Wayne Do toranados have boy or girl names

[ Jimmy/Qaqqalik/CA - 796 - 17:38:21 ]
Dr. Rusher, where on Earth would you find the most cumulonibus clouds?

[ Paul_Ruscher/FSU - 797 - 17:38:23 ]
RE: [JasonMills/CentralMiddleSchool/US] Andrew was up I got a question Do all clouds have Latin roots
Hi, Jason - yes, all clouds have Latin roots, essentially. Even the sub-types we use like lenticularis (lens-shaped), castellanus (castle-like turrets), congestus (thick), humilis (I forget the exact meaning but applied to cumulus means small, non-threatening cloud).

[ JacobAnderson/CentralMiddleSchool/US - 798 - 17:38:26 ]
how big can hailstones get?

[ Victoria/GLOBE - 799 - 17:38:34 ]
Much as I hate to do this ...we've run over time a little bit already. I'll keep the chat open another five minutes. But first I want to thank all the experts --your answers were wonderful and, a special thanks to all the GLOBE students who asked such great questions!

[ SimoneReggiani/IstitutoTecnicoIndustrialeFermiMantova/IT - 800 - 17:38:37 ]
How can some white clouds completely darken the solar beams?

[ PeterHardyfromPanghere - 801 - 17:38:47 ]
I asked Inoosik if he thinks the weather is changing in the arctic: He has seen a lot of changes, the sea ice is breaking up earlier and he feels it is a lot warmer now. There are also clouds that he used to see a lot really high in the sky and they look like they are splitting up. These were called aqqaliq and were good weather clouds. Inoosik says that it is so long since he saw these that it is years ago.

[ Chris_Spence/EnvironmentCanada - 802 - 17:38:54 ]
Matt, I'm going to defer to Geoff Strong on this question about tightly packed rain. I know he's got an answer for this one.

[ JohnJacoby/CentralMiddleSchool/US - 803 - 17:38:55 ]
can hurricanes form anywhere in the world or just near the middle?

[ EmilyKatherineJordan/FersonCreek/US - 804 - 17:39:12 ]
Dear Ed and Jerrine I'm katherine from Ferson Creek Have you ever been in a tornado while you were taking a pitcher ?

[ TommyElder/CentralMiddleSchool/US - 805 - 17:39:17 ]
HOW LONG CAN CLOUDS LAST????

[ SimoneReggiani/IstitutoTecnicoIndustrialeFermiMantova/IT - 806 - 17:39:31 ]
From what did the idea come to study and classify clouds?

[ KenanSarkic/CentralMiddle/US - 807 - 17:39:48 ]
Dr. Ruscher how many different clouds did you see at the most in the sky?

[ JacobAnderson/CentralMiddleSchool/US - 808 - 17:39:54 ]
how big can hailstones get?

[ GeoffStrong/CloudThunderstormexpert - 809 - 17:39:56 ]
RE: [TommyElder/CentralMiddleSchool/US] HOW LONG DO CLOUDS LAST?????????????????????????????????????????????
I like this question! Clouds generally last as long as there is 'upward motion' within the cloud. The upward motion causes the moist air to 'cool', then condense (cools because it is going to lower pressures). Once the cloud gets downward motion (we call subsidence), then the opposite process is occurring and the cloud dissippates. The result is that when you see clouds and/or clear air, you know where there is upward and/or downward motion AT, and just BELOW the cloud. Sailplane pilots and parachutists use this information to stay up in the air longer.

[ LeahAshleySarah/FersonCreek/Unknown - 810 - 17:39:57 ]
terri lang , do you ever see rainshadows?

[ KyleCorson/Centralmiddleschool/US - 811 - 17:40:00 ]
thank you for answering our questions

[ TerriLang/MountainWeatherCentre - 812 - 17:40:06 ]
RE: [TARIATALBERT/CENTRALMIDDLESCHOOL/US] Ms.Terri Lang thank you for answering my question!Do you ever plan on changing careers?
Taria.. no, no plans to change careers, I love it too much. But there are lots of things to do within my job that keeps it interesting.

[ Paul_Ruscher/FSU - 813 - 17:40:15 ]
RE: [Jimmy/Qaqqalik/CA] How does cumulonimbus form?
Hi, Jimmy - cumulonimbus clouds form when air rises very rapidly due to very strong surface heating, air flowing up over mountains or fronts, or other strong low pressure areas. If there is very cold air aloft (high above the surface), the air may rise all the way to the top of the troposphere; in the upper parts of the clouds, ice crystals form and they are very effective at making precipitation-size drops (or ice/snow) which fall out of the cloud in showers.

[ Chris_Spence/EnvironmentCanada - 814 - 17:40:23 ]
Sam, The water cycle was first conceptualized in ancient times by the Greeks and Chinese. The perspective of how each component fits together has changed over time, but the concept has remained the same for thousands of years.

[ PeterHardyfromPanghere - 815 - 17:40:41 ]
Also Inoosik says that now he sees low clouds on the mountains far more than before. They are there most of the time and in the past they were infrequent.

[ JohnZSamPSamR/FersonCreek/US - 816 - 17:40:44 ]
Ms. Lang High Ms. Lang do lenticulert clouds wear down mountains?If yes how many years would it take to lose a foot?

[ JohnJacoby/CentralMiddleSchool/US - 817 - 17:40:48 ]
how do fronts form

[ TeacherAttagoyukSchool/AttagoyukIlisavik/CA - 818 - 17:40:51 ]
Leah Ashley. We do have soil here but it is quite thin on the ground. We cannot do soil tests just now because the ground is frozen. Much of the soil is quite sandy. Sandy soil looses its heat quicker than soil with more vegitable matter because of the moisture content. (Water has a great ability to store warmth) We also have permafrost

[ JacobAnderson/CentralMiddleSchool/US - 819 - 17:41:00 ]
how big can hailstones get?

[ NoraAmeliaMattFromFersonCrek - 820 - 17:41:03 ]
I have a question for Ed and Jerrine, How long have you bin chasing tornadoes? From:Amelia

[ DavidHacker/CentralMiddleSchool/US - 821 - 17:41:07 ]
CAN A HURICANE TRAVVEL UP RIVERS AND LAKES FOR CONTINUS SPEED PETER HARDY?

[ DavidHacker/CentralMiddleSchool/US - 822 - 17:41:08 ]
CAN A HURICANE TRAVVEL UP RIVERS AND LAKES FOR CONTINUS SPEED PETER HARDY?

[ JohnJacoby/CentralMiddleSchool/US - 823 - 17:41:48 ]
what has been the fastest hurricane ever recorded

[ Victoria/GLOBE - 824 - 17:41:49 ]
Oops -- the chat is on until 18:00 UT. My apologies!

[ Paul_Ruscher/FSU - 825 - 17:41:57 ]
RE: [TommyElder/CentralMiddleSchool/US] HOW LONG DO CLOUDS LAST?????????????????????????????????????????????
Stratus clouds usually last for many many hours or days; cumulus type clouds usually have a shorter life cycle, a few hours or less. This is because stratus clouds form where there is a large area of slowly rising air that persists for long periods of time. Cumulus type clouds often occur where air is rising more rapidly over shorter periods of time, and smaller areas.

[ TerriLang/MountainWeatherCentre - 826 - 17:42:27 ]
RE: [LeahAshleySarah/FersonCreek/Unknown] terri lang , do you ever see rainshadows?
Leah... by rainshadows, I assume you mean the dry areas just to the lee (or west in the Northern Hemisphere) of high mountains. Here in Kelowna, we live in a rain shadow. The coast mountains of BC stand over 14,000 feet in some places, so they squeeze out much of the rain and snow from the clouds before that same air moves over us. It is very dry in the summer here and there are some places in southern BC that are considered deserts!

[ JacobAnderson/CentralMiddleSchool/US - 827 - 17:42:38 ]
how big can hailstones get?

[ GeoffStrong/CloudThunderstormexpert - 828 - 17:42:39 ]
RE: [JacobAnderson/CentralMiddleSchool/US] how big can hailstones get?
Hailstones up to about 9 cm (I don';t recall the exact record size) have been recorded. In Alberta where I live, for example, we frequently (several times a summer) get reports of hailstones as large as a BASEBALL. The hailstone sized is a very good indicator of the thunderstorm intensity which produced it. A baseball-size hailstone is caused by a very intense thunderstorm.

[ ArjenEdandJerrineGLOBEexp - 829 - 17:42:42 ]
RE: [MitchellZuck/CentralMiddleSchool/US] what is the longest a cloud can last?
Water clouds don't last very long - maybe up to an hour. The prioblem with thinking about a cloud as a discrete object is that it is constantly changing and renewing itself. If it didn't renew itself (forming new cloud material) then it would simply evaporate and disappear. So what you see is not exactly the same cloud you saw a short while ago. Ice crystal clouds (like cirrus) can last a lot longer - up to 12 hours - because ice evaporates much more slowly than water. Try watching the clouds move from one side of the sky to the other, looking for familiar shapes or details, to see if you can recognize the renewal going on.

[ Lorella1TLT/IstitutoTecnicoIndustrialeFermiMantova/IT - 830 - 17:42:53 ]
Why doesn't GLOBE atmosphere protocols use a particular instrument, called Elianografo in Italian, to measure the could cover?

[ TARIATALBERT/CENTRALMIDDLESCHOOL/US - 831 - 17:43:03 ]
Terri Lang: like what ?

[ JohnJacoby/CentralMiddleSchool/US - 832 - 17:43:17 ]
So when a hailstone is softball size that means inthe clouds it was even bigger

[ 5thGRADEMRSADAMS/HOLYREDEEMERCATHOLICSCHOOL/US - 833 - 17:43:28 ]
Brendon asks: Why are some clouds thin and some clouds thick? Brooke asks: Why are some clouds still white at night? Michelle has observed that clouds are still around after it stops rainning and she wonders at what time does it go away?

[ PeterHardyfromPanghere - 834 - 17:43:33 ]
RE: [SimoneReggiani/IstitutoTecnicoIndustrialeFermiMantova/IT] From what did the idea come to study and classify clouds?
Simone, the inuit or eskimo of the arctic study clouds as aprt of life and always have. By knowing clouds they can know when it is best to travel, where to hunt. The inuit know what the weather will do just by looking up.

[ Pat/GLOBEHelpDesk - 835 - 17:43:33 ]
Here are some more questions from the GLOBE students in Italy: Can acid gases influence cloud formation & the types of clouds? What clouds produce the most precipitation? What is the town having the most liquid precipitation in the world?

[ ElvisAlicic/CentralMiddleSchool/US - 836 - 17:43:36 ]
Terri Long How early would you be able to predict a storm before it happenes

[ Chris_Spence/EnvironmentCanada - 837 - 17:44:16 ]
Joe and Brennan, Depends on where you start. Precipitation falls from the sky, and if its snow, stays on the ground until it melts. Some of the snowmelt and rain can infiltrate into the ground, and from there it slowly travels to streams. Some of the snow and rain evaporates back to the atmosphere. Some water even travels directly over the ground into rivers, but this is rare except in cities (where the cement prevents water from getting into the ground) and some soils that are too hard to allow the water in. Some of the river water will evaporate back before it reaches the oceans.

[ Jimmy/Qaqqalik/CA - 838 - 17:44:23 ]
GOTTA GO!

[ JohnJacoby/CentralMiddleSchool/US - 839 - 17:44:23 ]
do you have alot of work to do as a scientist?

[ agoyukIlisavik/Unknown - 840 - 17:44:26 ]
Dear Cimiona, How is your weather like there?

[ GeoffStrong/CloudThunderstormexpert - 841 - 17:44:29 ]
RE: [SimoneReggiani/IstitutoTecnicoIndustrialeFermiMantova/IT] How can some white clouds completely darken the solar beams?
Basically, if the cloud is VERY THICK, it reduces the amount of light (through refraction, reflection) coming through it, and the cloud may appear to be dark then. However, the actual cloud is the same 'white' that you see on shallow clouds. The colour is completely determined by the amount of light coming through, and the angle that you view it from.

[ JasonMills/CentralMiddleSchool/US - 842 - 17:44:32 ]
Paul why do clouds have Latin roots

[ DianeDuncan/FersonCreekElementarySchool/US - 843 - 17:44:43 ]
II wish I had a video camera going in my classroom! I have 9 computer/laptops and teams of three at work! I've never seen such excitement- expecially when a question is answered. My class voluntarily gave up their lunch and recess to take part in this chat. I'd like to than all of you- this is "so cool"- and authenic! Thanks also go to the orgainzer- It was great being able to know the background of each of the scientist. It made it very easy for students to prepare and direct their questions ahead of time. The GLOBE team for today just came in to report a current temp of 20 degrees and no clouds or cloud cover!

[ TerriLang/MountainWeatherCentre - 844 - 17:44:44 ]
RE: [JohnZSamPSamR/FersonCreek/US] Ms. Lang High Ms. Lang do lenticulert clouds wear down mountains?If yes how many years would it take to lose a foot?
John.. no, lenticular clouds do not wear down mountains, but mountains form lenticular clouds. As air ascends up the mountain, the water vapour in the air condenses and forms a cloud. Then as the air descends down the mountain, it dries out. So, if the atmosphere is "stable" (meaning rain is not likely), you can get a series of these pancake shaped clouds that stay stationary over a mountain. They are beautiful and interesting clouds that do not precipitate.

[ Francesco1TLT/IstitutoTecnicoIndustrialeFermiMantova/IT - 845 - 17:44:53 ]
What can the thickness of a common cirrus be, in meter?

[ DENNISDEVORE/CENTRALMIDDLESCHOOL/US - 846 - 17:45:24 ]
I HAVE A

[ ArjenEdandJerrineGLOBEexp - 847 - 17:45:36 ]
RE: [JasonMills/CentralMiddleSchool/US] Wayne Do toranados have boy or girl names
No. Only hurricanes are named, but according to media portayals of tornadoes they must think they are boys on the rampage :-) !

[ TeacherAttagoyukSchool/AttagoyukIlisavik/CA - 848 - 17:45:57 ]
John Jacoby. Front are where warm air meets cold air. Ballots Law states if you stand with your back to the wind the low pressure is always on your left.

[ JohnJacoby/CentralMiddleSchool/US - 849 - 17:46:09 ]
why does hail usually form with tornadoes

[ TedEricLoren/FersonCreekElementry/US - 850 - 17:46:27 ]
Peter Hardy What is it like in the canadian artic teritory?

[ PeterHardyfromPanghere - 851 - 17:46:35 ]
For all students, it may be of interest to know that Inoosik Nashalik an Inuit Elder of Pangnirtung in the Canadian arctic learnt all about weather from his father, he can read the weather by looking at the clouds. He is passing this skill down to his children and to students by showing them how to read the sky.

[ Paul_Ruscher/FSU - 852 - 17:46:36 ]
RE: [DavidHacker/CentralMiddleSchool/US] ARE HURICANES STARTED BY CLOUDS DR. RUSCHER?
Yes, David...cumulus clouds initiate hurricanes by helping to generate energy through latent heat of condensation...when that latent heat is released over warm ocean waters, it may create a hurricane.

[ DavideF/IstitutotecnicoIndustrialeFermiMantova/IT - 853 - 17:46:45 ]
What is the town having the biggest liquid precipitation in the world?

[ wayne/TomNCDC - 854 - 17:46:55 ]
RE: [JasonMills/CentralMiddleSchool/US] Wayne what is the longest time cloud lasted
A large mass of clouds known as a low pressure system can last for days and even weeks. The largest of these organized systems are known as hurricanes/tropical storms. Hurricane/Typhoon John lasted 31 days as it traveled both the Northeast and Northwest Pacific basins during August and September 1994. (It formed in the Northeast Pacific, reached hurricane force there, moved across the dateline and was renamed Typhoon John, and then finally recurved back across the dateline and renamed Hurricane John again.)

[ ArjenEdandJerrineGLOBEexp - 855 - 17:47:31 ]
RE: [JohnJacoby/CentralMiddleSchool/US] So when a hailstone is softball size that means inthe clouds it was even bigger
Yes. but probab;ly not more than a gew millimetres (up to an eighth of an inch).A Stone that large would be quite cold and would not melt very much on the way down.

[ TerriLang/MountainWeatherCentre - 856 - 17:47:35 ]
RE: [ElvisAlicic/CentralMiddleSchool/US] Terri Long How early would you be able to predict a storm before it happenes
Elvis... sometimes, we can predict a BIG storm (like one that covers an entire state or province) days in advance. But predicting the smaller thunderstorms that hit a city are much harder to forecast. We can figure out that the weather conditions are likely to produce thunderstorms in a general area (like the western part of a state or province) but narrowing it down is harder. Once a storm forms, we can follow it along and give cities an hour or two warning about it.

[ Paul_Ruscher/FSU - 857 - 17:47:38 ]
RE: [Jimmy/Qaqqalik/CA] Dr. Rusher, where on Earth would you find the most cumulonibus clouds?
Hi, Jimmy - the most cumulonimbus clouds are probably found in the tropics, in the area known as the Doldrums or the Intertropical Convergence Zone, a belt of clouds that encircles the earth in the tropical latitudes.

[ MitchZuck/CentralMiddleSchool/US - 858 - 17:48:12 ]
tARIA WHAT IS THE BIGGEST COLUD

[ KyleCorson/Centralmiddleschool/US - 859 - 17:48:36 ]
thank you very much we neeed to go now

[ TommyElder/CentralMiddleSchool/US - 860 - 17:48:41 ]
THANK YOU FOR LETTING ME PARTICIPATE IN THIS WONDERFUL PROGRAM.

[ Paul_Ruscher/FSU - 861 - 17:48:49 ]
RE: [JohnJacoby/CentralMiddleSchool/US] can hurricanes form anywhere in the world or just near the middle?
John - hurricanes require warm water to form, which pretty much limits them to the tropics, or "middle" of the earth, over the oceans.

[ DavidHacker/CentralMiddleSchool/US - 864 - 17:48:50 ]
THANK YOU FOR LETING US PARTICIPATE ARE MEAN TEACHER IS MAKING US GO.

[ EmilyKatherineJordan/FersonCreek/US - 866 - 17:49:01 ]
Dear Dr. Geff Strong, Is it scary looking for tornados? I think it's is!

[ Andrew/EnvironmentCanada - 867 - 17:49:06 ]
RE: [DavideF/IstitutotecnicoIndustrialeFermiMantova/IT] What is the town having the biggest liquid precipitation in the world?
Cherrapunji in India has the record, I think. On year they received 25m (yes, metres) of rain - I do a weather talk to the grade 2 class at my children's school and so far no class with all kids standing on each others shoulders is taller than that! It's a great statistic.

[ NoraAmeliaMattFromFersonCrek - 868 - 17:49:07 ]
Dr. Geoff Strong,do thunder and lighting do anything to help the Earth?What makes thuner and lightning?

[ TerriLang/MountainWeatherCentre - 869 - 17:49:22 ]
RE: [DavideF/IstitutotecnicoIndustrialeFermiMantova/IT] What is the town having the biggest liquid precipitation in the world?
Davide... I believe the rainiest place is somewhere in India if I am not mistaken. Here in Canada, our rainiest place is Vancouver Island where we grow some mighty big trees!

[ GeoffStrong/CloudThunderstormexpert - 870 - 17:49:25 ]
RE: [JohnJacoby/CentralMiddleSchool/US] So when a hailstone is softball size that means inthe clouds it was even bigger
To a point, that is true. However, very large hailstones (generally any larger than 4 or 5 cm) actually melt very little in fall. That's because the ratio of exposed surface area to the volume of hailstone is small, whereas, for a small (say 1/2-inch diameter hailstone - sorry for mixing up units here), the surface area to the hailstone volume is large, and therefore melts much more easily. You may need to check your geometry for surface area and volume of 'spheres' to understand this better (you see, mathematics comes into this everywhere - to be a scientist, you must first study mathematics; that's why it is called the 'queen of science').

[ DENNISDEVORE/CENTRALMIDDLESCHOOL/US - 871 - 17:49:27 ]
BYE EVERY ONE IN THIS CHATROOM

[ Paul_Ruscher/FSU - 872 - 17:49:29 ]
RE: [TommyElder/CentralMiddleSchool/US] THANK YOU FOR LETTING ME PARTICIPATE IN THIS WONDERFUL PROGRAM.
Tommy - thanks for your data!

[ MichaelJaclynAshley/FersonCreek/US - 873 - 17:49:29 ]
Hello, my name is Michael,I have a question for Ed and Jerrine. How does the camara focus in a tornado?

[ Paul_Ruscher/FSU - 874 - 17:50:04 ]
RE: [JacobAnderson/CentralMiddleSchool/US] how big can hailstones get?
Jacob - hail stones have been known to be as big as approximately 16 centimeters.

[ DavideS/IstitutoTecnicoIndustrialeFermiMantova/IT - 875 - 17:50:10 ]
What clouds give biggest liquid precipitations? (Davide S.)

[ KenanSarkic/CentralMiddle/US - 876 - 17:50:19 ]
can someone please answer question #807?

[ KATHRYNHUSARJENNYMOORE//Unknown - 877 - 17:50:23 ]
Hi, this is Jenny from Ferson Creek Elementary School and I have a question for Arjen and Jerrine. Do you like getting close to dangerous storms?

[ TedEricLoren/FersonCreekElementry/US - 878 - 17:50:24 ]
Terri Lang What is it like being a meteorologist?

[ JohnZSamPSamR/FersonCreek/US - 879 - 17:50:25 ]
Dr. Paul Ruscher Hello my name is Sam P., What kind of stormclouds are there?

[ JasonMills/CentralMiddleSchool/US - 880 - 17:50:27 ]
THANK YOU FOR ANWSERRING OUR QUESTIONS EVERYBODY

[ JoeandBrennan/FersonCreek/US - 881 - 17:50:28 ]
DR SPENCE HOW LONG HAVE YOU BEEN A HYDROLOGIST BEACAUSE ME AND BRENNAN MIGHT WANT TO BE A HYDROLOGIST!

[ NoraAmeliaMattFromFersonCrek - 882 - 17:50:40 ]
Dr. Geoff Strong,do thunder and lighting do anything to help the Earth?What makes thuner and lightning? From:Nora

[ CarlosFrench/BostonSouthEndPublicLibrary/US - 883 - 17:50:48 ]
Dr. Ruscher One last questions: Can we report our cloud observations since about 30% of the sky is blocked by buildings?

[ PeterHardyfromPanghere - 884 - 17:50:48 ]
RE: [TedEricLoren/FersonCreekElementry/US] Peter Hardy What is it like in the canadian artic teritory?
Right now it is about -5C a beautiful clear sky. The fjiord is still frozen, it is nice outside, not chilly at all. Out on the seaice it is a little windy but it also very very bright with the sunlight reflecting off the snow. We have almost 24 hours of light now although the sun is still setting! Soon it will stay up all 24 hours.

[ wayne/TomNCDC - 885 - 17:50:50 ]
RE: [DavideF/IstitutotecnicoIndustrialeFermiMantova/IT] What is the town having the biggest liquid precipitation in the world?
The greatest 24 hour official rainfall was at Foc Foc on La R'eunion Island with 72 inches or 182.5 cm in Jan 1966, In the U.S. the 24 hour record is 43 inches or 109 cm at Alvin Texas in July 1979.

[ ArjenEdandJerrineGLOBEexp - 886 - 17:50:52 ]
RE: [JohnJacoby/CentralMiddleSchool/US] why does hail usually form with tornadoes
The connection between large hail and tornadoes is simply that it takes a very tall, intense storm to produce a tornado, and those kinds of storms and those storms, going high up into the cold atmosphere, can also produce lots of hail. The common feature which matters in tall storms is the intense updraft (air entering the storm) which is necessarty for both hail formation and tornado formation.

[ Andrew/EnvironmentCanada - 887 - 17:50:56 ]
Thanks to all the GLOBE teachers and students who take observations and enter the data for others to use. Use comments as much as you like, as all the data is valuable.

[ MattWakefield/CentralMiddleSchool/US - 888 - 17:51:02 ]
Bye all!

[ jaZmiN/shawnigan/CA - 889 - 17:51:14 ]
I'm back

[ GeoffStrong/CloudThunderstormexpert - 890 - 17:51:30 ]
RE: [Francesco1TLT/IstitutoTecnicoIndustrialeFermiMantova/IT] What can the thickness of a common cirrus be, in meter?
Cirrus can be several thousand meters thick within a majot weather system, and may be indistinguishable from the other lower cloud layesr in that case. Or, the cirrus on a sunny day may only be a few meters thick, and very thin at that. That's when you see that wispy-looking high cloud with light coming through it.

[ JacobAnderson/CentralMiddleSchool/US - 891 - 17:51:34 ]
BYE BYE YALL

[ 5thGRADEMRSADAMS/HOLYREDEEMERCATHOLICSCHOOL/US - 892 - 17:51:35 ]
Carlos asks: How fast can a cloud go when a tornado is forming? Nicole asks: Why are there so many names of clouds on the cloud charts when we only use three main groups for GLOBE observations?

[ Paul_Ruscher/FSU - 893 - 17:51:39 ]
RE: [Lorella1TLT/IstitutoTecnicoIndustrialeFermiMantova/IT] Why doesn't GLOBE atmosphere protocols use a particular instrument, called Elianografo in Italian, to measure the could cover?
I am not familiar with that instrument, can you send me some information about it? You can find information about our GLOBE involvement at Florida State University at the WWW address below, including my email address. When the chat is over I'll try to find out more about it, too!

[ cosmo_girl/ShawniganLakeSchool/CA - 894 - 17:51:43 ]
hey everyone!!

[ ElvisAlicic/CentralMiddleSchool/US - 895 - 17:52:13 ]
Thank You Terri and Everyone else for answering my questoins.

[ BobbieHanson/acadiaelementary/CA - 896 - 17:52:22 ]
Hi I'm a grade two teacher in Calgary I have my entire class watchining the web chat on the LCD panel. We have been studying clouds and piloting the CLOUD books from FSU with David Lahart. We have Many questions? ALEX: Do people watch clouds everyday? HOUSTON; Do you know all the different clouds? Lucas: How do clouds move/ DAVID; Has anyone arund the world to watch clouds? LYNDSEY; Why don't the clouds flooat into spaace? CHASE; How come clouds take on shapes like castles or ice cream cones? KEVIN; How come clouds are white? DANIEL; How do you know water is evaporating to make clouds?

[ Victoria/GLOBE - 897 - 17:52:22 ]
RE: [KenanSarkic/CentralMiddle/US] can someone please answer question #807?
Please repeat your question.

[ JohnJacoby/CentralMiddleSchool/US - 898 - 17:52:28 ]
TTYL cosmo girl taria says goodbye

[ TerriLang/MountainWeatherCentre - 899 - 17:52:36 ]
RE: [TedEricLoren/FersonCreekElementry/US] Terri Lang What is it like being a meteorologist?
Ted... it is great to be a meteorologist because my job is exciting and challenging and the weather is never the same! We work shift work which can be hard (like working night shifts and working on holidays) and some days are very stressful when the weather is bad. But I love it and couldn't imagine doing anything else.

[ KenanSarkic/CentralMiddle/US - 900 - 17:52:40 ]
Thank You everyone for answering my questions it is time for me to sign off. bye

[ cosmo_girl/ShawniganLakeSchool/CA - 901 - 17:52:41 ]

[ Paul_Ruscher/FSU - 902 - 17:52:49 ]
RE: [JasonMills/CentralMiddleSchool/US] Paul why do clouds have Latin roots
Jason - I think that Mr. Howard based his system of naming clouds on the plant classification system (taxonomy), which was done first, and the scientists involved in that used Latin as the universal language at that time.

[ ElvisAlicic/CentralMiddleSchool/US - 903 - 17:52:51 ]
We have to sign off now bye.

[ wayne/TomNCDC - 904 - 17:52:58 ]
RE: [DavideF/IstitutotecnicoIndustrialeFermiMantova/IT] What is the town having the biggest liquid precipitation in the world?
The greatest 24 hour official rainfall was at Foc Foc on La R'eunion Island with 72 inches or 182.5 cm in Jan 1966, In the U.S. the 24 hour record is 43 inches or 109 cm at Alvin Texas in July 1979.

[ JohnJacoby/CentralMiddleSchool/US - 905 - 17:53:01 ]
jasmin taria says bye

[ jaZmiNjaCqueliNe/shawnigan/CA - 906 - 17:53:04 ]
We have a ? for the pros..... do land features effect the shape of a cloud?

[ cosmo_girl/ShawniganLakeSchool/CA - 907 - 17:53:12 ]
ok

[ JoeandBrennan/FersonCreek/US - 908 - 17:53:18 ]
DR SPENCE IS IT FUN TO BE A HYDROLOGIST

[ Paul_Ruscher/FSU - 909 - 17:53:20 ]
RE: [Francesco1TLT/IstitutoTecnicoIndustrialeFermiMantova/IT] What can the thickness of a common cirrus be, in meter?
Typical cirrus clouds are probably anywhere from 100 to more than 1000 meters thick, I believe.

[ Boser/ShawniganLakeSchool/CA - 910 - 17:53:25 ]
Mr.Strong how are thunder storms created

[ Paul/ShawnigawnLake/CA - 911 - 17:53:29 ]
Ms. Lang I was wandering how thunder develops in clouds

[ Victoria/GLOBE - 912 - 17:53:33 ]
RE: [CarlosFrench/BostonSouthEndPublicLibrary/US] Dr. Ruscher One last questions: Can we report our cloud observations since about 30% of the sky is blocked by buildings?
Enter in metadata that the sky is 30% blocked by buildings.

[ LeahAshleySarah/FersonCreek/Unknown - 913 - 17:53:34 ]
Chris Spense. Iam Ashley. Have you ever had a climate change and go from burning hot to freezing?

[ DavideS/IstitutotecnicoIndustrialeFermiMantova/IT - 914 - 17:53:46 ]
What does cloud colors depend from?

[ katherine/shawniganlakeschool/CA - 915 - 17:53:46 ]
Hey, were back. I have a question: How long does it take to become a meteorologist?

[ jaZmiNjaCqueliNe/shawnigan/CA - 917 - 17:53:46 ]
k, tell her later for me JohnJacob

[ Chris_Spence/EnvironmentCanada - 918 - 17:54:07 ]
RE: [JoeandBrennan/FersonCreek/US] DR SPENCE HOW LONG HAVE YOU BEEN A HYDROLOGIST BEACAUSE ME AND BRENNAN MIGHT WANT TO BE A HYDROLOGIST!
Joe and Brennan, Fantastic. I have been a hydrologist for about 7 years now. Its a great profession. There will always be a need to understand our water resources, especially over the next 50 years.

[ ArjenEdandJerrineGLOBEexp - 919 - 17:54:31 ]
RE: [KATHRYNHUSARJENNYMOORE//Unknown] Hi, this is Jenny from Ferson Creek Elementary School and I have a question for Arjen and Jerrine. Do you like getting close to dangerous storms?
Yes. I (Jerrine) do. Bur Ed has the sense to keep me from gouing any closer than is necessary to get good pictures. You can't really see what is happening in a tornado if you are too close - all you see is a lot a stuff blowing wround!. It is better to stay a couple of miles away so you can see the structure of the storm and how the tornado is behaving.

[ TerriLang/MountainWeatherCentre - 921 - 17:54:43 ]
RE: [jaZmiNjaCqueliNe/shawnigan/CA] We have a ? for the pros..... do land features effect the shape of a cloud?
Jasmine.. this question was answered earlier in the chat.

[ NoraAmeliaMattFromFersonCrek - 922 - 17:54:50 ]
Mr. Hardy, is the reason why you work in the arctic because you are interested in the cold?

[ wayne/TomNCDC - 923 - 17:54:59 ]
RE: [DavideF/IstitutotecnicoIndustrialeFermiMantova/IT] What is the town having the biggest liquid precipitation in the world?
The greatest 24 hour official rainfall was at Foc Foc on La R'eunion Island with 72 inches or 182.5 cm in Jan 1966, In the U.S. the 24 hour record is 43 inches or 109 cm at Alvin Texas in July 1979.

[ bibi/Korea/Unknown - 924 - 17:54:59 ]
hihi

[ JohnZSamPSamR/FersonCreek/US - 925 - 17:55:02 ]
Mr.Faas Hello my name is John.What is the highset and lowest temperature ever recorded?

[ MichaelJaclynAshley/FersonCreek/US - 926 - 17:55:30 ]
Hello, my name is Ashley,I have a question for DR. Paul Ruscher. How long does it take for clouds to move 1000 miles?

[ jaZmiNjaCqueliNe/shawnigan/CA - 927 - 17:55:31 ]
I'm sorry I was not here to observe it

[ TerriLang/MountainWeatherCentre - 928 - 17:55:35 ]
RE: [Paul/ShawnigawnLake/CA] Ms. Lang I was wandering how thunder develops in clouds
Paul... this question was answered earlier in the chat when someone asked a question about how hot lightning was. Thanks for asking!

[ Paul_Ruscher/FSU - 929 - 17:55:42 ]
RE: [KenanSarkic/CentralMiddle/US] Dr. Ruscher how many different clouds did you see at the most in the sky?
Hi, Kenan (#807)! I have actually at one time seen all ten cloud types in the sky, although usually when it is very cloudy anywhere from 3 to 5 different types may be visible. Often only one is present, however. The sky is always different. Even doing the cloudwatch this week, we at Florida State University are taking cloud observations nearly every hour with our students, and the observations are all different!

[ CarlosFrench/BostonSouthEndPublicLibrary/US - 930 - 17:55:49 ]
Hey GLOBE Scientists and Educators, THANK YOU from Boston!

[ jaZmiNjaCqueliNe/shawnigan/CA - 931 - 17:55:56 ]
yes cosmo

[ LeahAshleySarah/FersonCreek/Unknown - 932 - 17:56:04 ]
Chris Spence. Hello, I am Sarah. How can you look at water cycles?

[ Paul_Ruscher/FSU - 933 - 17:56:13 ]
RE: [JohnJacoby/CentralMiddleSchool/US] How come hail can form when its' hot outside when they're made of ice?
Because hail forms in the upper parts of the clouds, where temperatures are colder than -20 C

[ TerriLang/MountainWeatherCentre - 934 - 17:56:19 ]
RE: [katherine/shawniganlakeschool/CA] Hey, were back. I have a question: How long does it take to become a meteorologist?
katherine... it takes about 5 years to become a meteorologist once you graduate from high school.

[ Eugenio1TLT/IstitutoTecnicoIndustrialeFermiMantova/IT - 935 - 17:56:41 ]
Who did propose the cloud classification?

[ Paul_Ruscher/FSU - 936 - 17:56:44 ]
RE: [DavideS/IstitutoTecnicoIndustrialeFermiMantova/IT] What clouds give biggest liquid precipitations? (Davide S.)
David - usually cumulonimbus will produce the heaviest precipitation amounts and intensities.

[ Paul_Ruscher/FSU - 937 - 17:57:04 ]
RE: [JohnZSamPSamR/FersonCreek/US] Dr. Paul Ruscher Hello my name is Sam P., What kind of stormclouds are there?
Hi, John - storm clouds are usually cumulonimbus.

[ JohnZSamPSamR/FersonCreek/US - 938 - 17:57:20 ]
Thanks for answering our questions.

[ wayne/TomNCDC - 939 - 17:57:36 ]
RE: [katherine/shawniganlakeschool/CA] Hey, were back. I have a question: How long does it take to become a meteorologist?
You need at least a Bachlors degree at a 4 year university in Meteorology to become a Meteorologist and you can go on from there for a masters or doctors degree. There are also alot of people who study meteorology or take a few basic meteorology courses in school to become "weatherwise" as well, its a lot of fun...

[ BobbieHanson/acadiaelementary/CA - 940 - 17:57:41 ]
KARLIE; How fast do clouds move? SARAH; Why does water make clouds? DYLAN; How can you tell that clouds are moving or not? SAM; How do clouds come down to make fog. KIRSTYN; Why do clouds turn gray?

[ cosmo_girl/ShawniganLakeSchool/CA - 941 - 17:57:42 ]
does anybody know the meaning of the word "alto" stratus

[ Paul_Ruscher/FSU - 942 - 17:57:44 ]
RE: [CarlosFrench/BostonSouthEndPublicLibrary/US] Dr. Ruscher One last questions: Can we report our cloud observations since about 30% of the sky is blocked by buildings?
Yes, please do continue to report, Carlos - make sure that your site definition includes specifications as to which part of your sky is blocked by buildings. We can still use the observations!

[ katherine/shawniganlakeschool/CA - 943 - 17:57:45 ]
Thanks Terri Lang

[ Chris_Spence/EnvironmentCanada - 944 - 17:57:51 ]
RE: [LeahAshleySarah/FersonCreek/Unknown] Chris Spense. Iam Ashley. Have you ever had a climate change and go from burning hot to freezing?
Ashley, The best example I have of that was at a football game when I was in university. At the beginning of the game it was in the high 90's and we thought it would stay that way. In the third quarter the wind changed direction 180° and the temperature dropped 20° in about five minutes and one of the most intense thunderstorms I have ever seen soaked all of us in the stands and stopped the game for about an hour.

[ GeoffStrong/CloudThunderstormexpert - 945 - 17:58:08 ]
RE: [NoraAmeliaMattFromFersonCrek] Dr. Geoff Strong,do thunder and lighting do anything to help the Earth?What makes thuner and lightning?
Great question! Yes, lightning is very beneficial to the earth, as well as being dangerous. Lightning helps to restore nutrients in the soil, for example, and when they cause forest fires, the fire often burns an otherwise old, decaying forest, allowing new growth after the fire (not all fires are bad, you see). You notice I said lightning is beneficial, and nothing aout thunder. Thunder is just the noise caused by lightning as it heats the air very rapidly, causing expansion, and hence the noise. Thunder does no damage (except to your eardrums perhaps), and I can't think of much beneficial, other than strange people like myself (and the Verkaiks) find thunder very soothing. You probably already know why you hear the thunder 'after' the lightning. Lightning flashes reach your eys at the speed of light, while the thnuder has to travel at the 'much slower'/ speed of sound. By timing the thunder, you can actually determine approximately how far away the thunderstorm (lightning) is. Storm chasers sometimes use this informnation to 'home in' on a storm that hey are chasing.

[ JoeandBrennan/FersonCreek/US - 946 - 17:58:08 ]
DR SPENCE IF HYDROLOGY DIDNT EXIST WHAT WOULD YOU BE

[ CneckkizzerS/WILLIAMMCDONALD/GR - 947 - 17:58:09 ]
OCTO EN GRECO A LA QUINTOA DI CINMIO, A LA EN LINE SLOKOMA, DITA DECE CRE EN LA PAPANECIMENTO??!!

[ PeterHardyfromPanghere - 948 - 17:58:17 ]
RE: [jaZmiNjaCqueliNe/shawnigan/CA] We have a ? for the pros..... do land features effect the shape of a cloud?
Hi Jaz, in the arctic the shape of the land has an effect on clouds. As the sea ice breaks up an open water forms you get long low stratus clouds over the open leads.

[ Victoria/GLOBE - 949 - 17:58:33 ]
RE: [jaZmiNjaCqueliNe/shawnigan/CA] I'm sorry I was not here to observe it
Everyone can read the entire chat--all GLOBE chats actually-- at the GLOBE web site under news and events on the nav bar, under chat archive.

[ EmilyKatherineJordan/FersonCreek/US - 950 - 17:58:36 ]
Dear Chis, Hello, this is Emily from Ferson Creek. Do you enjoy water cycles?

[ Paul_Ruscher/FSU - 951 - 17:58:45 ]
RE: [BobbieHanson/acadiaelementary/CA] Hi I'm a grade two teacher in Calgary I have my entire class watchining the web chat on the LCD panel. We have been studying clouds and piloting the CLOUD books from FSU with David Lahart. We have Many questions? ALEX: Do people watch clouds everyday? HOUSTON; Do you know all the different clouds? Lucas: How do clouds move/ DAVID; Has anyone arund the world to watch clouds? LYNDSEY; Why don't the clouds flooat into spaace? CHASE; How come clouds take on shapes like castles or ice cream cones? KEVIN; How come clouds are white? DANIEL; How do you know water is evaporating to make clouds?
Hi! Clouds will grow according to how the wind blows and where the air is most humid!

[ katherine/shawniganlakeschool/CA - 952 - 17:58:59 ]
Thanks wayne/Tom

[ MichaelJaclynAshley/FersonCreek/US - 953 - 17:59:10 ]
Thank you for your help! From Ashley Jaclyn Michael

[ KATHRYNHUSARJENNYMOORE//Unknown - 954 - 17:59:17 ]
Hi, this is Kathryn, thanks for answering our questions!

[ jaZmiNjaCqueliNe/shawnigan/CA - 955 - 17:59:18 ]
cool, thanx alot Pete :)

[ TerriLang/MountainWeatherCentre - 956 - 17:59:25 ]
RE: [cosmo_girl/ShawniganLakeSchool/CA] does anybody know the meaning of the word "alto" stratus
cosmo girl ... alto means middle. Stratus is the type of cloud that is uniform in consistency. Thus altostratus is a layer of uniform grey cloud that occurs in the middle atmosphere. You can usually see the sun through it.

[ Letizia1C/IstitutotecnicoIndustrialeFermiMantova/IT - 957 - 17:59:40 ]
What are the physical parameters influencing the color of the clouds?

[ JoeandBrennan/FersonCreek/US - 958 - 17:59:45 ]
DEAR DR SPENCE THANK YOU FOR ANSWERING ARE QUESTIONS WE HOPE TO TALK TO YOU LATER OK WE HAVE TO GO BY

[ Paul_Ruscher/FSU - 959 - 17:59:53 ]
RE: [jaZmiNjaCqueliNe/shawnigan/CA] We have a ? for the pros..... do land features effect the shape of a cloud?
Hi, ja... Yes, land features can affect where clouds form because the atmosphere can be more heated during daytime over land, allowing air to rise, then it cools, increasing the relative humidity to the point that the air gets saturated; then the cloud forms over land but maybe not over water.

[ cosmo_girl/ShawniganLakeSchool/CA - 960 - 18:00:05 ]
thanx terri!!!

[ EmilyKatherineJordan/FersonCreek/US - 961 - 18:00:09 ]
THANK YOU ALL!!!!!!!!!!!!!!!!!!!!!

[ Letizia1C/IstitutotecnicoIndustrialeFermiMantova/IT - 962 - 18:00:10 ]
How is it possible that clouds remain suspended in presence of great air flow?

[ alice/ShawniganLakeSchool/CA - 963 - 18:00:17 ]
hi there!!i hope i can learn a lot form u...

[ katherine/shawniganlakeschool/CA - 964 - 18:00:21 ]
Does La Nina and El Nino affect clouds?

[ Paul_Ruscher/FSU - 965 - 18:00:27 ]
RE: [katherine/shawniganlakeschool/CA] Hey, were back. I have a question: How long does it take to become a meteorologist?
Hi, katherine - you can become a meteorologist after 4 years of college by earning your bachelor's degree.

[ CneckkizzerS/WMSJUNIORHIGH/GR - 966 - 18:00:30 ]
HELLLOO EVERYONE

[ CneckkizzerS/WMSJUNIORHIGH/GR - 967 - 18:00:31 ]
HELLLOO EVERYONE

[ CneckkizzerS/WMSJUNIORHIGH/GR - 968 - 18:00:31 ]
HELLLOO EVERYONE

[ wayne/TomNCDC - 969 - 18:00:34 ]
RE: [JohnZSamPSamR/FersonCreek/US] Mr.Faas Hello my name is John.What is the highset and lowest temperature ever recorded?
The worlds highest was 136F or 57.8 C at El Azizia, Libya on 13 September 1922, and lowest is -129 F of (-89.4) at Vostock, Antartica on a plateau at 11,220 ft of 3,420 meters...

[ Victoria/GLOBE - 970 - 18:00:41 ]
Today is "Take Your Child to Work Day" in the US. 7-year-old Rachael Hudson wants to know: If clouds are made out of water how could they stay up?"

[ Chris_Spence/EnvironmentCanada - 971 - 18:00:47 ]
RE: [LeahAshleySarah/FersonCreek/Unknown] Chris Spence. Hello, I am Sarah. How can you look at water cycles?
Sarah, We use climate towers to measure precipitation and evaporation. We use wells and soil moisture sensors to look at water storage in the ground. To measure river flow we measure the size of the river and the velocity of the water. We put them all together to figure out how much water is moving in each component. Please let Joe and Brennan that being a hydrologist is fun. It rocks.

[ ArjenEdandJerrineGLOBEexp - 972 - 18:00:58 ]
RE: [cosmo_girl/ShawniganLakeSchool/CA] does anybody know the meaning of the word "alto" stratus
Alto means high in Latin. But altostratus is a middle cloud layer- a "high" looking example of a layer cloud ... stratus means layer.

[ LeahAshleySarah/FersonCreek/Unknown - 973 - 18:00:59 ]
THANKS FOR ANSWERING OUR QUESTIONS! WE REALLY APPRECIATE IT!

[ Paul_Ruscher/FSU - 974 - 18:01:03 ]
RE: [DavideS/IstitutotecnicoIndustrialeFermiMantova/IT] What does cloud colors depend from?
David - cloud colors depend on how much pollutant there is in the atmosphere, usually, or dust or volcanic ash, too, can affect them.

[ JohnZSamPSamR/FersonCreek/US - 975 - 18:01:23 ]
Dear Dr. Verkack What year were rainbows herd in, and how do rainbow form? Samantha .R

[ cosmo_girl/ShawniganLakeSchool/CA - 976 - 18:01:32 ]
are any of you scientis from Vancouver Island or from Mexico?

[ TerriLang/MountainWeatherCentre - 977 - 18:01:35 ]
RE: [Letizia1C/IstitutotecnicoIndustrialeFermiMantova/IT] What are the physical parameters influencing the color of the clouds?
Letizial... The colour of the clouds depends on the thickness of the cloud and the sun angle.

[ Chris_Spence/EnvironmentCanada - 978 - 18:01:41 ]
RE: [JoeandBrennan/FersonCreek/US] DR SPENCE IF HYDROLOGY DIDNT EXIST WHAT WOULD YOU BE
Joe and Brennan, A ski bum.

[ PeterHardyfromPanghere - 979 - 18:01:48 ]
RE: [BobbieHanson/acadiaelementary/CA] KARLIE; How fast do clouds move? SARAH; Why does water make clouds? DYLAN; How can you tell that clouds are moving or not? SAM; How do clouds come down to make fog. KIRSTYN; Why do clouds turn gray?
Our Inuit elder, Inoosik says that you can know what the weather is going to be like from the colour of clouds and the movement of the wind. Clouds blow in the wind so you can see how hard the wind is blowing from the speed and shape of clouds.

[ TedEricLoren/FersonCreekElementry/US - 980 - 18:01:48 ]
DEAR EVERYONE THANKYOU

[ KATHRYNHUSARJENNYMOORE//Unknown - 981 - 18:02:03 ]
Helloo everyone

[ Paul_Ruscher/FSU - 982 - 18:02:26 ]
RE: [Letizia1C/IstitutotecnicoIndustrialeFermiMantova/IT] How is it possible that clouds remain suspended in presence of great air flow?
Hi, Letizia, as long as the air rises and it is humid enough, clouds will continually reform in an area, making it appear that they are continuously there.

[ NoraAmeliaMattFromFersonCrek - 983 - 18:02:49 ]
THANK YOU FOR ANSWERING ALL OF ARE QUESTIONS!!!!!!!!!!!! FROM:Nora,Amelia,and Matt

[ GeoffStrong/CloudThunderstormexpert - 985 - 18:03:08 ]
RE: [Boser/ShawniganLakeSchool/CA] Mr.Strong how are thunder storms created
That's a very shgort question with a very long answer, but a very excellent question nonetheless. In short, thunderstorms are created when the air is made unstable by a combination of heating from below (the sun heating the earth and in turn heating the air immediately above the earth), and cooling at higher levels. The cooling occurs when a weather system is approaching from the west, so during summer, we often associate thunderstorm outbreaks with the approach of such a system, and say that it 'triggers' the thunderstorm, since the surface heating usually occurs every day during summer anyway. The third essential ingredient that you need for a thunderstorm is 'moisture' near the ground. Whe it is humid, hot, and a weather system is approaching in July on the pariries, you can also be assured that a thunderstorm will occur somewhere in the area.

[ katherine/shawniganlakeschool/CA - 987 - 18:03:24 ]
Is anyone from BC or Washington State?

[ Paul_Ruscher/FSU - 988 - 18:03:24 ]
Good bye everyone, I have to go, please continue to take your cloud and other GLOBE measurements! We'll see you for the next web chat!

[ Chris_Spence/EnvironmentCanada - 989 - 18:03:35 ]
It was great talking with everyone. Thanks so much for the questions.

[ TerriLang/MountainWeatherCentre - 990 - 18:04:06 ]
RE: [Letizia1C/IstitutotecnicoIndustrialeFermiMantova/IT] How is it possible that clouds remain suspended in presence of great air flow?
Letizial.. clouds can remain suspended over a mountain when the atmosphere is very stable (meaning rain is not likely). The air moves up the mountain condenses then moves down the mountain and drier out. The cloud appears not to be moving, but the air is constantly moving throught it. These are called lenticular clouds.

[ ArjenEdandJerrineGLOBEexp - 991 - 18:04:24 ]
RE: [Paul_Ruscher/FSU] Hi! Clouds will grow according to how the wind blows and where the air is most humid!
Cloudwatching is one of those hobbies that seem to be universal. People in all parts of the world do it, and there are many observers who report what they see to weather service.The sky is a great part of nature. It is always changing and very entertaining.

[ JoeandBrennan/FersonCreek/US - 992 - 18:04:38 ]
BYE DR. SPENCE

[ TerriLang/MountainWeatherCentre - 993 - 18:04:44 ]
RE: [katherine/shawniganlakeschool/CA] Is anyone from BC or Washington State?
Katherine.. I am from Kelowna British Columbia.

[ katherine/shawniganlakeschool/CA - 994 - 18:04:57 ]
Bye you guys!

[ cosmo_girl/ShawniganLakeSchool/CA - 995 - 18:05:09 ]
Kelowna is so gorgeous! do you know a place named Naramata TerriLang?

[ GeoffStrong/CloudThunderstormexpert - 996 - 18:05:10 ]
RE: [Victoria/GLOBE] Today is "Take Your Child to Work Day" in the US. 7-year-old Rachael Hudson wants to know: If clouds are made out of water how could they stay up?"
Rachel, What a great question, and you say you are only 7 years old! The best way I can answre this is to watch mommy boil water in the kettle. You see the steam (like cloud droplets) boiling out and going 'up' in the air. Clouds do this too. When the clouds get 'heavy', the rain then falls down.

[ wayne/TomNCDC - 997 - 18:05:29 ]
RE: [cosmo_girl/ShawniganLakeSchool/CA] does anybody know the meaning of the word "alto" stratus
some other roots with clouds are: stratus=layer, cirrus=fibre; nimbus=umbrella; cumulus=heap; altus=high fractus=broken... the latin ending alto atlus in this case would mean the same...

[ LeahAshleySarah/FersonCreek/Unknown - 998 - 18:05:44 ]
GOODBYE! THANKS!

[ katherine/shawniganlakeschool/CA - 999 - 18:05:46 ]
Cool, Terri Lang. Have you ever been to Vancouver Island?

[ Letizia1C/IstitutotecnicoIndustrialeFermiMantova/IT - 1000 - 18:06:06 ]
What are the physical parameters influencing the color of the clouds?

[ PeterHardyfromPanghere - 1001 - 18:06:35 ]
I asked our Inuit elder about the northern lights. Beautiful white green and red dancing lights in the arctic sky. Inoosik says that when you see the northern lights going north south it means north wind coming and good weather. If the northern lights are all wavy and covering the east west sky it means clouds are coming. They will cover the sky by the end of the next day.

[ Victoria/GLOBE - 1002 - 18:06:36 ]
We are going to have to shut down the chat in just a couple of minutes. Thank you all so very much for fabulous questions and wonderful answers!

[ cosmo_girl/ShawniganLakeSchool/CA - 1003 - 18:07:07 ]
I STILL don't understand how the Northern Lights work?!

[ Andrew/EnvironmentCanada - 1004 - 18:07:14 ]
Bye from Edmonton - keep GLOBE observing.

[ wayne/TomNCDC - 1005 - 18:07:26 ]
RE: [cosmo_girl/ShawniganLakeSchool/CA] does anybody know the meaning of the word "alto" stratus
some other roots with clouds are: stratus=layer, cirrus=fibre; nimbus=umbrella; cumulus=heap; altus=high fractus=broken... the latin ending alto atlus in this case would mean the same...

[ wayne/TomNCDC - 1006 - 18:08:08 ]
Wayne/Tom fro NCDC signing off... Tom Ross NCDC....

[ alice/ShawniganLakeSchool/CA - 1007 - 18:08:10 ]
is the jet stream any good for the human health or the plants??^.^

[ GeoffStrong/CloudThunderstormexpert - 1008 - 18:08:36 ]
Bye to everyone. Thanks for the really great questions! We learned as much from the questiions as you did from any answers!

[ Victoria/GLOBE - 1009 - 18:08:36 ]
RE: [GeoffStrong/CloudThunderstormexpert] Rachel, What a great question, and you say you are only 7 years old! The best way I can answre this is to watch mommy boil water in the kettle. You see the steam (like cloud droplets) boiling out and going 'up' in the air. Clouds do this too. When the clouds get 'heavy', the rain then falls down.
Thanks Geoff--Rachael is thrilled!

[ Remy/Yukon - 1010 - 18:08:53 ]
Good work Peter et al on the chat!

[ TerriLang/MountainWeatherCentre - 1011 - 18:09:34 ]
RE: [katherine/shawniganlakeschool/CA] Cool, Terri Lang. Have you ever been to Vancouver Island?
Katherine and cosmo girl - yes, Naramata is not far from here (about 45 minute drive south) and yes, I have been to Vancouver Island - it is a beautiful place.

[ TerriLang/MountainWeatherCentre - 1012 - 18:09:57 ]
Bye to everyone. Thanks for all the excellent questions!

[ PeterHardyfromPanghere - 1013 - 18:11:06 ]
RE: [cosmo_girl/ShawniganLakeSchool/CA] I STILL don't understand how the Northern Lights work?!
The northern lights are a result of special waves of radiation from the sun hitting the outer atmosphere of the earth where they bang into atoms causing them to let go of a flash of light. all these flashes join together and we see shimmering and dancing noerthern lights, mostly when the sun has a lot of sunspot activity. Ed and Jerrine can probably answer this better.

[ Victoria/GLOBE - 1014 - 18:11:46 ]
Thanks again to everyone--great work from everyone. A special thanks to Peter Hardy. Please join GLOBE's next web chat on May 4th about severe storms!

[ ArjenEdandJerrineGLOBEexp - 1015 - 18:12:07 ]
It was fun chatting with you all. We hope we have reached a few weather nuts like ourselves, or maybe even inspired a few others to start watching the sky. It's a great place to rest your eyes, and you will never see exactly the same thing twice! As Ralph Waldo Emerson said, "The sky is the daily bread of the eyes." bye! Ed and Jerrine Verkaik

[ Victoria/GLOBE - 1016 - 18:13:21 ]
Lovely quote to close on. Bye!

[ PeterHardyfromPanghere - 1017 - 18:13:45 ]
Tabaosie from Inoosik and Noah and Pete in Pangnirtung

The questions below were submitted by LBA Yaounde, a school in Cameroon that was unable to participate in the chat. The answers were provided by the experts:

From Paul Ruscher: I would encourage you to go through the chat archive, as this type of question came up many times. In particular, I mentioned cirrostratus, altocumulus, altostratus, nimbostratus, and cumulonimbus and their ability to help meteorologists predict weather from them.

(2) Why is the study of clouds of primary importance in Aviation?

From Louis Churchville (professional pilot): Clouds are visible clues to the condition of the air in which they are forming. Is the air stable? Are the clouds building or dissipating? How much of the sky is covered by clouds? How thick are the clouds? Are the clouds precursors of worsening weather or sunny skies? Will the clouds turn into thunderstorms? Will they bring rain, snow, sleet? Is there ice forming in the clouds? How windy is it? How windy will it get? Will the wind be steady in speed and direction or gusty-- changing direction without warning? . Pilots need to know what the weather is in order to fly safely. Understanding the many types of cloud formations and what types of other weather phenomenon those formations are associated with is of primary importance. All of the questions above are related to safe flying, and cloud formations provide direct visual evidence to answer those questions at least in a general sense. Airports need to know the weather in order to manage the pace of landing and take off operations safely--primarily visibility values, wind direction and speed, and turbulence are important. In short, clouds are symptoms of the weather--indirect indicators of general (and sometimes specific) trends in weather phenomena that have a direct impact on aviation safety.

(3) Why do we carry out weather forecasting? How is it important to our children at school?

From Terri Lang: Simple weather forecasting is easy to do for school children. Getting them to watch the clouds and record what kind of clouds and how the clouds are changing is important. The types of clouds will tell you something about what the weather will do (nimbostratus = rain, etc). The direction the clouds come from is also important if you have an understanding of where different types of weather systems come from in your end of the world. Recording pressure will also shed light on weather systems. Falling pressure usually means the approach of a low pressure system which could bring rain and rising pressure usually means better weather is coming. Simple temperature forecasting is also neat to do, if one understands where the weather is coming from and how much cloud there will be. Wind directions can also tell you from which direction weather systems are coming from. I believe it is important to teach children the basics about weather because it is something that is around all the time and can have a great impact on our lives. Children can learn to appreciate the weather but can also learn to prepare for significant events.

(4) How can weather forecasting be used to predict the trend in rampant floods that often hit the world from mid February to April each year?

From Terri Lang: Weather forecasters can usually catch most of these significant events before they happen and help people prepare for them. Satellite pictures can detect the storm systems as they form and computer weather predictions help determine whether the event will be significant or not.

(5) In reporting cloud cover, one of the descriptions is NO CLOUD. When can one really decide that there is no cloud in the sky? Are there any visual aids that could be used as a guide in doing this activity? What correlation is there between NO CLOUD and CLEAR SKY ?

From Paul Ruscher: A perfectly clear sky with no clouds in it at all should always be reported as NO CLOUDS. If there is a single tiny little puff of cumulus cloud in it, then CLEAR should be reported, and the cloud type should be reported as CUMULUS. Of course if the cloud cover is anywhere from 0-10% you should report CLEAR. I guess even 1% is too high an estimate for that single tiny puffy cumulus cloud, which is why I started the range above at 0%!

(6) Can data from atmosphere study be used to predict the possible occurrence of Earthquarkes? If so, how?

From Paul Ruscher: There is no relationship that I am aware of that relates clouds to earthquakes.

From Terri Lang: To the best of my knowledge, the study of the atmosphere does not help to predict earthquakes as earthquakes are generated deep inside the earth and are powered by movements of the huge pieces of earth known as tectonic plates, some of which cover huge portions of the earth!