Subj : DAY1SVR: Day 1 Convective Outlook
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Tue Dec 19 2023 19:58:13

ACUS01 KWNS 191956
SWODY1
SPC AC 191955

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0155 PM CST Tue Dec 19 2023

Valid 192000Z - 201200Z

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

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

....20Z Update...
No changes have been made to the prior forecast.

...Gleason.. 12/19/2023

..PREV DISCUSSION... /ISSUED 1023 AM CST Tue Dec 19 2023/

....Discussion...
Broad/low-amplitude ridging aloft will prevail across most of the
U.S. today, in the wake of a trough shifting eastward across the
Mid-Atlantic Region and New England.

In the West, an eastern Pacific low will continue shifting
southeastward, with only a glancing influence across the West Coast
states.

However, this glancing influence will be enough to keep mid-levels
relatively cool, and thus maintain very weak instability across this
region.  As such, sporadic lightning strikes will remain possible --
mainly across portions of northern and central California through
tonight.

Elsewhere, with the eastern U.S. surface cold front already
offshore, and cool/stable high pressure prevailing east of the
Rockies, thunderstorms are not expected.

$$

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