Subj : DAY2SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Tue Nov 29 2022 06:59:35

ACUS02 KWNS 290659
SWODY2
SPC AC 290658

Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1258 AM CST Tue Nov 29 2022

Valid 301200Z - 011200Z

....THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
THE SOUTHEAST...

....SUMMARY...
Thunderstorms associated with isolated severe winds, and perhaps a
marginal tornado threat will be possible on Wednesday in parts of
the southeastern U.S.

....Southeast...
A progressive upper-level trough will move through the Ohio and
Tennessee Valleys on Wednesday, as an associated cold front advances
into the eastern U.S. At the start of the period, the front is
forecast to be located from the lower Mississippi Valley
northeastward into the southern Appalachians. Ahead of the front in
parts of the Southeast, surface dewpoints in the 60s F will
contribute to weak instability. At 12Z on Wednesday the strongest
instability should be across the central Gulf Coast, where MLCAPE is
forecast to be in the 500 to 1000 J/kg range. Thunderstorms ongoing
ahead of the front at the start of the period, could have a marginal
wind-damage/tornado threat. The marginal severe threat could extend
as far north as southwestern South Carolina, where instability is
forecast to be very weak, but deep-layer shear and large-scale
ascent will be stronger associated with the upper-level system.
Although the severe threat should become more isolated during late
morning and early afternoon, a lingering threat could persist in the
Florida Panhandle Wednesday afternoon, where marginally severe wind
gusts and a brief tornado will be possible.

...Broyles.. 11/29/2022

$$

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