Subj : DAY3SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Sun Oct 19 2025 19:12:11

ACUS03 KWNS 191912
SWODY3
SPC AC 191910

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0210 PM CDT Sun Oct 19 2025

Valid 211200Z - 221200Z

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

....SUMMARY...
Isolated thunderstorms are possible over the Great Lakes, South
Florida, and the northwest Gulf Coast regions Tuesday. Severe
thunderstorms are not expected.

....Synopsis...

A broad upper trough will envelop much of the eastern half of the
CONUS on Tuesday. A surface low will migrate across the Great Lakes,
with a trailing cold front developing southeast across TX and the
much of the Southeast and Eastern Seaboard. Rich boundary layer
moisture across coastal TX into LA will be in place ahead of the
front, aiding in weak to moderate destabilization through peak
heating. Stronger large-scale ascent will be focused well to the
northeast, but ascent along the front may support isolated
thunderstorms. Vertical shear will generally be weak, but a couple
of stronger storms could produce gusty winds. More robust updrafts
will likely be limited by poor midlevel lapse rates/warm midlevel
temps.

Additional isolated thunderstorms will be possible across parts of
the Great Lakes and upper Ohio Valley beneath the cold core of the
upper low/trough, and across south FL within a moist and unstable
environment. Severe storms are not expected.

...Leitman.. 10/19/2025

$$

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