Subj : DAY1SVR: Day 1 Convective Outlook
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Mon Feb 26 2024 00:38:25

ACUS01 KWNS 260038
SWODY1
SPC AC 260036

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0636 PM CST Sun Feb 25 2024

Valid 260100Z - 261200Z

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

....SUMMARY...
Isolated thunderstorms may occur tonight across parts of
coastal/northwest Washington.

....01z Update...

Very cold midlevel temperatures (-30C to -38C at 500mb) will spread
across northwest WA later tonight as a strong polar jet sags south
into this region. NAM forecast sounding for UIL at 06z exhibits
SBCAPE on the order of 100 J/kg with an EL temperature around -23C,
near 600mb. Lapse rates will continue to steepen, and EL heights
should increase through 12z. While boundary-layer conditions will
remain cool, marine influences should contribute to instability
necessary for a few flashes of lightning within the deepest
convection.

No changes are warranted to previous outlook.

...Darrow.. 02/26/2024

$$

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