Subj : DAY1SVR: Day 1 Convective
To   : All
From : Mike Powell
Date : Tue Dec 19 2023 10:09:00

ACUS01 KWNS 191256
SWODY1
SPC AC 191255

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0655 AM CST Tue Dec 19 2023

Valid 191300Z - 201200Z

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

....SUMMARY...
A few thunderstorms are possible today across parts of central and
northern California.

....DISCUSSION...
An upper-level trough will move off the Atlantic Coast today, as an
upper-level ridge moves through the Rockies. At the surface, dry and
cool air associated with a large surface high in the eastern U.S.
will make conditions unfavorable for thunderstorms across most of
the continental United States. The only exception will be in central
and northern California, where a few thunderstorms will be possible
due to an increase of large-scale ascent and mid-level moisture
ahead of an eastern Pacific upper-level low. No severe thunderstorms
are expected today or tonight.

...Broyles/Thompson.. 12/19/2023

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