Subj : DAY3SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Tue Aug 26 2025 19:15:13

ACUS03 KWNS 261915
SWODY3
SPC AC 261914

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0214 PM CDT Tue Aug 26 2025

Valid 281200Z - 291200Z

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

....SUMMARY...
A few strong thunderstorms are possible across parts of the southern
Plains Thursday afternoon and evening.

....Southern Plains...

An MCS is likely to be ongoing Thursday morning across portions of
KS/OK/AR. This activity will likely diminish as it develops
southeast toward the ArkLaTex during the afternoon. A composite
outflow/surface cold front will then spread south/southwest across
OK/the Panhandles/eastern NM by mid-afternoon, though forecast
guidance varies on the exact location of the surface boundary. Near
the boundary, a corridor of 60s F dewpoints will be in place. While
midlevel lapse rates are expected to be relatively weak, rich
boundary layer moisture should support a corridor of 1000-2000 J/kg
MLCAPE in the vicinity of the Red River. Low-level winds are
expected to remain light, but vertically veering profiles will
support around 20-30 kt effective shear magnitude. Where strong
heating can occur ahead of the boundary, isolated strong storms
could develop during the afternoon/evening. Locally strong gusts are
possible with this activity.

At this time, uncertainty in the evolution of the surface boundary
and coverage of thunderstorms precludes severe probabilities.

...Leitman.. 08/26/2025

$$

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