SPC Mar 19, 2025 Day 4-8 Severe Weather Outlook

Day 4-8 Convective Outlook  
NWS Storm Prediction Center Norman OK
0350 AM CDT Wed Mar 19 2025

Valid 221200Z - 271200Z

...DISCUSSION...
...Saturday/Day 4 to Sunday/Day 5...
A mid-level trough will move through the central U.S. on Saturday
and Sunday, as moisture advection takes place across the southern
Plains, lower Mississippi Valley and Ark-La-Tex. Thunderstorm
development will likely take place ahead of the trough on Sunday
afternoon and evening, along the northern edge of the moist airmass
from the Red River Valley eastward into the lower Mississippi
Valley. A threat for large hail and severe wind gusts will be
possible within the more organized components of a developing MCS.
The MCS is forecast to move southeastward through the lower
Mississippi valley during the overnight period.

...Monday/Day 6 to Wednesday/Day 8...
On Monday, the trough is forecast to become amplified across the
Ohio and Tennessee Valleys, as a cold front moves southward through
the Gulf Coast states. Isolated severe storms could occur near the
central Gulf Coast early in the day, but the majority of the storms
are expected to move offshore into the Gulf. On Tuesday and
Wednesday, surface high pressure is forecast to settle over the
eastern half of the nation. This dry and cool airmass will make
conditions unfavorable for thunderstorms over most of the
continental U.S.

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