473
ACUS03 KWNS 291910
SWODY3
SPC AC 291910

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0210 PM CDT Mon Sep 29 2025

Valid 011200Z - 021200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe storms are not forecast for Wednesday.

...Synopsis...
A relatively inactive day in terms of thunderstorm potential will
exist on Wednesday, with a large area of high pressure dropping
south out of Quebec and toward the Mid Atlantic. This surface high
will extend westward across the MS Valley and into the northern
Gulf, where little instability or lift will be present to support
thunderstorms.

A weak surface trough will develop over the eastern Dakotas, in
association with a midlevel disturbance. Ascent with this feature as
well as cool temperatures aloft may combine with daytime heating to
yield isolated afternoon thunderstorms, but severe weather is not
expected due to weak instability.

To the west, an upper trough will move slowly east across the
Pacific Northwest, with a belt of strong midlevel southwesterlies
moving toward the northern Rockies by Thursday morning. Minimal
instability across coastal WA and OR may support low-topped
convection, primarily near the coast and offshore.

..Jewell.. 09/29/2025

$$