Subj : DAY1SVR: Day 1 Convective Outlook
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Fri Jan 03 2025 05:24:28

ACUS01 KWNS 030524
SWODY1
SPC AC 030522

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1122 PM CST Thu Jan 02 2025

Valid 031200Z - 041200Z

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

....SUMMARY...
Sporadic lightning flashes may occur this afternoon and evening over
the coastal Pacific Northwest into interior northern California.
Severe weather is not expected.

....Pacific Northwest...

Upper ridge will shift east into the Rockies later this afternoon as
a strong trough advances inland along the Pacific northwest. Latest
guidance suggests 120-150m, 12hr height falls will overspread this
region, coincident with highly diffluent flow aloft. Very cold
mid-level temperatures, and cooling/steepening lapse rates favor an
increasingly buoyant profile by afternoon within the post-frontal
environment. Scattered convection should develop within this
environment, and the strongest updrafts may penetrate levels
necessary for lightning discharge, hence the continuation of thunder
probabilities.

...Darrow/Wendt.. 01/03/2025

$$

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