Subj : DAY1SVR: Day 1 Convective Outlook
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Mon Dec 26 2022 05:04:11

ACUS01 KWNS 260504
SWODY1
SPC AC 260502

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1102 PM CST Sun Dec 25 2022

Valid 261200Z - 271200Z

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

....SUMMARY...
Isolated thunderstorms may occur across parts of northern California
and southwest Oregon tonight. No severe weather is expected across
the continental United States today or tonight.

....DISCUSSION...
An upper-level trough will move across the Intermountain West today
as a trough digs southeastward into the lower to mid Mississippi
Valley. Behind the trough, mid-level flow will be from the
north-northwest. As a result, surface high pressure will move
southward across the Great Plains. This cold and dry airmass will
reinforce northerly flow across parts of the Gulf Coast states,
suppressing moisture return. Due to this, thunderstorms are not
expected across most of the continental United States. One exception
will be across northern California and southwest Oregon, as an
upper-level trough moves inland tonight. A few lightning strikes
could occur ahead of the trough, where large-scale ascent could be
enough for isolated thunderstorms.

...Broyles/Wendt.. 12/26/2022

$$

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