Subj : DAY3SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Sat Aug 26 2023 07:30:09

ACUS03 KWNS 260730
SWODY3
SPC AC 260728

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0228 AM CDT Sat Aug 26 2023

Valid 281200Z - 291200Z

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

....SUMMARY...
Isolated damaging winds may occur with thunderstorms that develop
across parts of the Southeast on Monday.

....Southeast...
Upper troughing should persist Monday over much of eastern Canada
and the U.S., while upper ridging remains centered from the
Southwest to the northern Rockies. At the surface, a weak front
should be nearly stationary while extending from parts of the
southern Mid-Atlantic across the Carolinas and into the Southeast. A
very moist low-level airmass will likely be present to the south of
this front, with at least low to mid 70s surface dewpoints common.
Even with multiple days of prior convection, it still appears
probable that moderate to locally strong instability will once again
develop south of the front as robust diurnal heating occurs.

Most of the Southeast will remain displaced to the south of
appreciable mid-level flow associated with the upper trough,
although some modest southwesterlies may exist across parts of GA
into the Carolinas. While deep-layer shear is forecast to generally
be negligible across much of the warm sector, a favorable
environment for gusty downdrafts should exist owing to the degree of
instability forecast and a fairly well-mixed boundary layer.
Scattered to numerous thunderstorms should develop by Monday
afternoon along the length of the front from LA to SC. Some of this
convection should be capable of producing isolated strong/gusty
winds and occasional tree damage. Have therefore included a Marginal
Risk where thunderstorm coverage should be highest.

...Gleason.. 08/26/2023

$$

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