|
| 01. Minimum/Maximum Temperatures every twelve (12) hours |
| 02. Temperatures every three (3) hours |
| 03. Dewpoints every three (3) hours |
| 04. Relative Humidity every three
(3) hours |
| Note: This is
calculated using temperature and dewpoint data. The closer the
temperature and dewpoint are to each other, the higher the
relative humidity. To see how this works,
calculate relative humidity using the
meteorological calculator by clicking
here. |
|
| 05. Wind Direction every three (3) hours |
| Note: The wind is FROM the direction
indicated. For example, "SW" means the wind is FROM the southwest. |
|
| 06. Wind Speed every three (3) hours |
| Note: Speed is in
mph. If the speed is "00", the wind is calm. |
|
| 07. Sky Conditions every three (3) hours |
| Note: "CL"
means the sky is clear, "FW" means the sky is mostly clear with only a few
clouds, "SC" means scattered clouds or partly cloudy, "BK" means
broken clouds or mostly cloudy and "OV" means overcast or cloudy. |
|
|
08. Probability of Precipitation every twelve (12) hours (in %) |
| 09. Amount of Precipitation every twelve (12) hours (in
%) |
| 10. Amount of Snow every twelve (12) hours |
| Note:
This is expressed in a range (such as "2-4") or as a single
number (such as "3"), with the amounts in inches. "T" would
represent a trace of snow. "00-00" means that no snow is
expected. |
|
| 11/12. Type/Likelihood of Precipitation
every three (3) hours |
| Note:
Various precipitation types may be expressed such as RAIN
(Rain), RAIN SHWRS (Rain Showers), TSTMS (Thunderstorms),
DRIZZLE (Drizzle), SNOW (Snow), SNOW SHWRS (Snow Showers),
SLEET (Ice Pellets), FRZNG RAIN (Freezing Rain), and FRZNG
DRZL (Freezing Drizzle). Likelihood of these types occurring
is represented by "S" or "IS" for "slight chance"
or "isolated" (10-20%), "C"
or "SC" for "chance" or "scattered" (30-50%), "L"
or "NM" for "likely" or "numerous" (60-70%), and "O" or "D"
for "occasional" and
"definite" respectively (80-100%). |
|
| 13. Heat Index every three (3)
hours |
| Note:
This is calculated using temperature and relative humidity
data and expressed in degrees Fahrenheit. Values below 80
degrees will not be shown. In Winter, this parameter will be
replaced by Wind Chill, which is calculated using temperature
and wind speed data (also expressed in degrees Fahrenheit).
To calculate Heat Index and Wind Chill,
try the meteorological calculator by clicking
here. |
|
| 14. Obstruction to Visibility |
| Note: "F" is fog,
"PF" is patchy fog, "F+" is dense fog, "PF+" is patchy dense
fog, "H" is haze, "BS" is blowing snow, "K" is smoke, and "BD"
is blowing dust. |
|
| 15. Minimum/Maximum Temperatures every twelve (12) hours |
| 16. Temperatures every six (6) hours |
| 17. Dewpoints every six (6) hours |
| 18. Wind Direction every twelve (12) hours |
| 19. Wind Character every twelve (12) hours |
| Note:
May be expressed as LT (light or less than 8 mph), GN (gentle
or 8 to 14 mph), BZ (breezy or 15-22 mph), WY (windy or 23-30
mph), VW (very windy or 31-39 mph) or SD (strong/damaging or
40 mph). |
|
| 20. Sky Conditions every six (6) hours
(see notes from number 07) |
|
21. Probability of Precipitation every twelve (12) hours (in %) |
| 22/23. Type/Likelihood of Precipitation
every six (6) hours (see notes from numbers 11/12) |
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