Subj : DAY48SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Tue Oct 28 2025 08:22:28

ACUS48 KWNS 280822
SWOD48
SPC AC 280820

Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0320 AM CDT Tue Oct 28 2025

Valid 311200Z - 051200Z

....DISCUSSION...
In the wake of a substantial cold frontal passage across the East,
generally dry and stable conditions are expected to prevail through
much of the extended range, as a large-scale mid/upper-level trough
and extensive surface ridge persist across the central/eastern CONUS
and limit potential for substantial moisture return.

On D5/Saturday, modest low-level moisture return will be possible
across parts of Deep South TX and the TX Gulf Coast, in response to
a midlevel shortwave trough digging southward across the Great
Plains. Most deterministic and ensemble guidance (aside from the
more aggressive 28/00Z GFS) suggests destabilization will be too
weak to support an organized severe threat, though at least some
thunderstorm activity could accompany this system.

Some thunderstorm potential could linger near the Gulf Coast into
D6/Sunday and D7/Monday, but most guidance suggests only low
potential for substantial inland moisture return and destabilization
into early next week.

...Dean.. 10/28/2025

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