Subj : DAY1SVR: Day 1 Convective Outlook
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Mon Dec 23 2024 12:45:36

ACUS01 KWNS 231244
SWODY1
SPC AC 231242

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0642 AM CST Mon Dec 23 2024

Valid 231300Z - 241200Z

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

....SUMMARY...
Severe thunderstorms are not forecast through tonight across the
contiguous United States.

....Synopsis...
Water-vapor imagery this morning shows a mid-level trough over AZ
moving east and a northern stream trough over the Pacific Northwest.
The northern mid-level trough will latitudinally expand southward
into the central Rockies/south-central High Plains as a ridge
amplifies over the Interior West in its wake.  As this occurs, a
partial phasing of mid-level trough over the Desert Southwest will
occur as it moves into the southern High Plains.  Farther west, a
powerful upper trough will reach the WA/OR/northern CA coasts late
tonight.  In the low levels, surface high pressure will influence
conditions over much of the Lower 48 states.  Weak/ill-defined lower
pressure over central TX will facilitate southerly flow from the TX
coastal plain northward into the Red River Valley.

Weak 850-mb warm-air advection will likely persist through the
period across north TX into OK while a modest increase in moisture
eventually results in weak elevated instability.  Isolated to widely
scattered showers and a few thunderstorms are possible tonight over
eastern OK and perhaps as far south as north TX.

...Smith/Goss.. 12/23/2024

$$

= = =
To unsubscribe from WX-STORM and you already have a login, go to
https://lists.illinois.edu and use the "Unsubscribe" link.  Otherwise email
Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM.

--- SBBSecho 3.20-Linux
 * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105)

.