Subj : DAY3SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Sun Dec 04 2022 07:57:41

ACUS03 KWNS 040757
SWODY3
SPC AC 040756

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0156 AM CST Sun Dec 04 2022

Valid 061200Z - 071200Z

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

....SUMMARY...
Appreciable severe risk is not evident across the U.S. on Tuesday.

....Discussion...
Gradual amplification of the upper flow field across the U.S. will
continue Tuesday, as a western U.S. trough advances southeastward
across California and the Great Basin, and into the Southwest.  As
this occurs, downstream ridging over the Gulf of Mexico will
likewise strengthen, expanding northeastward along the Eastern
Seaboard.

At the surface, little overall change in frontal positioning is
expected, with the boundary to extend from the southern Plains to
the Ohio Valley through the period.  The front will likely focus
convective activity -- including a few thunderstorms, with greatest
coverage expected overnight.  However, while shear -- within the
warm-advection regime near and north of the boundary -- would
support organized updrafts, meager instability and a
likely-to-remain-stable boundary layer (even ahead of the front)
should preclude any appreciable severe-weather potential.

...Goss.. 12/04/2022

$$

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