084 

ACUS01 KWNS 240103

SWODY1

SPC AC 240102



Day 1 Convective Outlook  

NWS Storm Prediction Center Norman OK

0802 PM CDT Sun Aug 23 2026



Valid 240100Z - 241200Z



...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE

NORTHERN HIGH PLAINS AND GREAT BASIN...



...SUMMARY...

Thunderstorms capable of large hail and severe-caliber wind gusts

will continue this evening across eastern Montana and the western

Dakotas, with other severe storms capable of wind gusts across the

Great Basin.



...01z Update...

Primary severe-weather corridor this evening will persist across

east/northeast Montana to portions of the western Dakotas, but

likely on a more marginal/isolated basis by the overnight.



Other wind-producing storms will remain a possibility over the next

couple of hours in areas such as northern Utah/far southeast Idaho,

as well as southern Arizona.



A couple of severe storms will remain a possibility this evening

across northeast Ohio into northwest Pennsylvania. See Mesoscale

Discussion 2108 for additional details.



Later tonight, a modest increase in isentropic ascent associated

with a south-southwesterly low-level jet may aid thunderstorm

development late tonight and early Monday morning across parts of

northeast Oklahoma and southeast Kansas to the Ozarks. Overall

instability is expected to remain fairly weak (MUCAPE generally less

than 1000 J/kg), but some clustering may occur with a low chance for

localized severe wind gusts.



..Guyer.. 08/24/2026



$$