267
ACUS03 KWNS 141917
SWODY3
SPC AC 141916

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0216 PM CDT Mon Sep 14 2026

Valid 161200Z - 171200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
The risk for severe thunderstorms appears negligible across the U.S.
on Wednesday.

...Discussion...
Stronger winds aloft will extend from the Northern Plains into the
Upper Great Lakes on Wednesday as a large upper ridge expands across
much of the central to southeastern states. A surface high will also
exist over the Upper MS Valley and Great Lakes which will keep the
more favorable instability well south of the stronger flow/shear.
While a secondary shortwave trough will swing across central Canada
and into the northern Plains late, instability should be minimal
that far north.

The greatest chance of thunderstorms will be near a weak/stalled
front from the Central Plains eastward across the Midwest and OH
Valley, where dewpoints of 65-70 F will be common. Early day
thunderstorms across this same zone will likely dissipate during the
day, with scattered redevelopment near peak heating. Given the
generally poor lapse rates aloft and weak shear, the severe storm
threat appears low.

..Jewell.. 09/14/2026

$$