376
ACUS03 KWNS 211855
SWODY3
SPC AC 211854

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0154 PM CDT Mon Sep 21 2026

Valid 231200Z - 241200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe thunderstorms are not expected on Wednesday.

...Synopsis...

Surface high pressure will become established across much of the
CONUS east of the Mississippi River. A surface cold front will move
across the Gulf Coast and Southeast states. Isolated thunderstorms
may develop with the moist airmass ahead of the front across part of
the Southeast. Further west, surface lee troughing across western
portions of the Plains will aid modest northward moisture transport
and isolated thunderstorms could occur across this area as well.
Overall, severe potential will be limited by a lack of stronger
forcing for ascent, modest instability, and weak vertical shear.

..Leitman.. 09/21/2026

$$