Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
400 PM EDT Fri Mar 31 2023
Valid 00Z Sat Apr 01 2023 - 00Z Mon Apr 03 2023
...A major severe weather outbreak is forecast to continue into tonight
across portions of the Mississippi Valley...
...Winter Storm with Blizzard conditions from Northern Plains to Upper
Midwest/Great Lakes tonight...
...Heavy snow across northwestern mountains...
...Critical Fire Weather persists over parts of the Central/Southern
Plains for the next several days...
A deep upper-level trough will continue to trigger severe weather and
excessive rainfall across the Mississippi/Tennessee Valleys from Iowa to
eastern Texas tonight. The Storm Prediction Center recently issued a High
Risk of Severe Thunderstorms over portions of southeast Iowa, west-central
Illinois, far northeastern Missouri, and in parts of eastern Arkansas,
northern Mississippi and southwestern Tennessee. A few long-track strong
to potentially violent tornadoes are probable, particularly over portions
of the Mid-Mississippi Valley to Mid-South. Damaging wind gusts and very
large hail are expected as well. People in these areas should remain
vigilant and prepared to take emergency precautions if necessary.
Conditions should improve later tonight when the line of convection moves
into the Tennessee/Ohio Valley and Southeast. Some thunderstorms produce
heavy rainfall leading to flash flooding as depicted by a Slight Risk
area. Showers and thunderstorms will move into the Eastern third of the
country on Saturday. A Slight Risk of Severe Thunderstorms is in effect
for parts of the Northeast, Delaware and the Southeast where damaging
winds will be the main physical weather concern. There's a Marginal risk
of flash flooding in the Southeast on Saturday.
Simultaneously, a winter storm will dump heavy snow, strong winds and
blizzard conditions from southern Minnesota, northern Wisconsin and the
Upper Peninsula of Michigan tonight. Between 6-12 inches of snow is
expected with a quarter to half inch of sleet and some freezing rain
possible in the transition zones.
Kebede
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php