Subj : DAY2SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Wed Dec 20 2023 17:02:37

ACUS02 KWNS 201702
SWODY2
SPC AC 201700

Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1100 AM CST Wed Dec 20 2023

Valid 211200Z - 221200Z

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

....SUMMARY...
Isolated thunderstorms should occur Thursday across parts of
central/southern California and southern Arizona. Severe
thunderstorms are not expected.

....Synopsis and Discussion...
An upper low should be centered well off the coast of southern CA
early Thursday morning. This low is expected to drift gradually
southward through the day, before moving more eastward towards the
coast overnight and into Friday morning. Large-scale ascent, ample
mid-level moisture, and cold mid-level temperatures associated with
this upper low should encourage isolated thunderstorms along and
near the central/southern CA coast through the period. As the low
moves gradually eastward, showers and occasional thunderstorms are
forecast to expand eastward across southern Arizona through early
Friday morning. Weak instability should preclude a meaningful threat
for severe thunderstorms across these areas.

...Gleason.. 12/20/2023

$$

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