Subj : DAY1SVR: Day 1 Convective Outlook
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Sat Mar 22 2025 00:38:54

ACUS01 KWNS 220038
SWODY1
SPC AC 220036

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0736 PM CDT Fri Mar 21 2025

Valid 220100Z - 221200Z

....NO SEVERE THUNDERSTORM AREAS FORECAST...

....SUMMARY...
Severe thunderstorms are not forecast through tonight.

....Synopsis...
A shortwave trough now over IA will continue southeastward across
the OH Valley tonight, with decreasing availability of instability.
Steep lapse rates owing to daytime heating beneath the upper trough
have resulted in scattered weak thunderstorms over IA and northern
MO this evening, and some of this activity may persist into IL this
evening. Very weak instability will preclude any severe threat.

Elsewhere, similarly weak instability exists over parts of the
Pacific Northwest this evening, in association with an upper jet
diving into WA/OR. Isolated convection may yield a few lightning
flashes as far east as western MT.

...Jewell.. 03/22/2025

$$

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