646
ACUS01 KWNS 300043
SWODY1
SPC AC 300042

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0742 PM CDT Tue Jul 29 2025

Valid 300100Z - 301200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM THE NORTHERN
HIGH PLAINS INTO PARTS OF THE CORN BELT...

...SUMMARY...
Severe thunderstorms remain possible this evening from southeast
Montana ad eastern Wyoming across parts of South Dakota, Nebraska,
and Iowa.

...Northern High Plains...
Widely scattered cells producing severe hail persist this evening in
the post frontal/upslope regime from southeast MT into eastern WY. A
narrow instability plume ahead of these storms may support a
continued hail risk approaching the Black Hills later this evening.
For more information see mesoscale discussion 1838.

...NE into western IA...
Clusters of storms continue to evolve within a weak shear
environment from northwest KS across central NE and into southeast
SD where more substantial outflow is present. The primary deep-layer
theta-e axis remains across the NE into IA zone, and this strongly
unstable and moist air mass will continue to support swaths of
damaging winds and marginal hail. The weak wind fields below 500 mb
will continue to be a limiting factor to overall severity.

..Jewell.. 07/30/2025

$$