CENTRAL
STATES EXPECT SNOW, RAIN AND SEVERE WEATHER AS FLOOD CONCERNS GROW
March
30, 2007 � As a slow-moving low pressure system and associated cold
front continue to move across the Central Plains, NOAA
weather forecasters expect rains to continue and flooding to worsen
from the Canadian border on the Red River of the North to the Rio Grande
River in southern Texas. The low pressure was centered in northern Nebraska
early Friday morning and is expected to strengthen Friday night before
moving slowly eastward over the weekend. (Click NOAA image for
larger view of weather watches and warnings issued by the NOAA Storm
Prediction Center as of 2:09 p.m. EDT on March 30, 2007. Click
here for latest watches and warnings. Please credit “NOAA.”)
Impacting
the weather to some extent in 17 central states, the storm has left
more than four feet of snow in areas of Wyoming, with isolated areas
of heavy snow possible Friday. The chance of tornadoes is greatly reduced
Friday after the system produced up to 65 tornadoes Wednesday and four
on Thursday, according to local and national forecasts. Saturated soils
and the high likelihood of more rain have prompted concerns for flooding
and flash flooding in 13 states from North Dakota to Texas.
“We
are far from being out of the woods with this storm system, although
the possibility of severe storms and tornadoes looks to be limited more
to Oklahoma and Texas,” said NOAA
National Weather Service Central Region Director Lynn Maximuk, “We
again encourage people to pay attention to the weather and to be especially
cautious of flooding and flash flooding as rain continues over a large
area through the weekend.”
Quick Reaction
Teams from local
NOAA National Weather Service forecast offices Thursday provided
preliminary intensity ratings for tornadoes in Colorado, Kansas and
Nebraska.
A tornado
that caused a fatality and several injuries in Holly, Colo., was rated
as a high EF2 on the Enhanced
Fujita intensity scale with winds of 130-135 mph. The twister was
rated as possibly greater than EF3 about 15 miles north of the community.
Tornadoes that hit Bird City, Kan., and Benkelman, Neb., were rated
high EF2 or low EF3. The Grant, Neb., tornado was rated EF2, and the
tornado that hit Ogallala, Neb., was rated EF1. Tornadoes that hit rural
areas of west-central Kansas were rated EF1-EF2. The tornado that tore
through Hodgeman and Ness counties in Kansas was rated EF3.
The damage
survey team from NOAA’s Pueblo forecast office will return to
Holly, Friday, for additional damage assessment and meetings with emergency
management officials and residents.
For the third consecutive day, winter storm watches and warnings, blizzard
warnings and heavy snow warnings were in effect Friday morning for portions
of Montana, North Dakota, South Dakota and Wyoming. Impacted areas can,
again, expect occasional white out conditions caused by high winds and
blowing snow. Low snowfall amounts of 2-4 inches are expected Friday
on top of snow that fell earlier in the week.
The Riverton, Wyo., weather forecast office staff recorded numerous
amounts in the 12-inch to 30-inch range, with several much-more imposing
amounts as well. With snow still falling, the office received reports
from Fremont County of 70 inches at Hobbs Park, 53 inches at Homestead
Park and 44 inches at Townsend Creek. Dome Lake in Sheridan County reported
58 inches; Cloud Peak Reservoir in Johnson County recorded 41 inches
and Reno Hill in Natrona County reported 36 inches.
Even with the risk of severe weather being reduced, forecasters emphasized
that the High Plains and Tornado Alley would experience rain, heavy
at times, throughout the weekend. Early Friday morning, 158 flood warnings,
watches or statements were in effect for weather forecast offices in
11 central plains states: Illinois, Iowa, Kansas, Minnesota, Missouri,
Nebraska, North Dakota, Oklahoma, South Dakota, Texas and Wisconsin.
Flood statements unrelated to this storm were in effect in Louisiana,
New York and Puerto Rico.
Continued rains will worsen flooding and flash flooding problems in
a north-south line stretching between the Canadian and Mexican borders,
including the Red River of the North in North Dakota and Minnesota;
the Mississippi River in Minnesota and the Missouri River along the
Nebraska-Iowa state line into northeast Kansas and northwest Missouri.
The NOAA Paducah, Ky., weather forecast office received notice of a
lightning fatality during a thunderstorm Thursday afternoon. According
to the report, an 18-year-old male student died after being hit by lightning
at a high school track and field complex in Carbondale, Ill.
A graphical depiction of the expected threats of severe weather, heavy
snows, flooding, etc., can be found on the NOAA
Hydrometeorological Prediction Center national forecast map.
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Relevant Web Sites
NOAA National Weather Service Central
Region
NOAA
Storm Prediction Center
NOAA Hydrometeorological
Prediction Center
NOAA
Weather Portal
Media
Contact:
Patrick Slattery, NOAA
National Weather Service Central Region, (816) 268-3135
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