Montana Severe Thunderstorm Warning | Effective 05/13/2026 13:46

Headline: 
Severe Thunderstorm Warning issued May 13 at 2:46PM MDT until May 13 at 3:30PM MDT by NWS Great Falls MT
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
May 13, 2026 - 1:46pm
Expires: 
May 13, 2026 - 2:30pm
Description: 
SVRTFX The National Weather Service in Great Falls has issued a * Severe Thunderstorm Warning for... Judith Basin County in central Montana... West central Fergus County in central Montana... South central Chouteau County in north central Montana... Southeastern Cascade County in central Montana... * Until 330 PM MDT. * At 246 PM MDT, severe thunderstorms were located along a line extending from 14 miles southwest of Geyser to 18 miles southwest of Stanford to 27 miles northeast of White Sulphur Springs, moving northeast at 55 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Stanford, Geraldine, Denton, Hobson, Geyser, Neihart, Raynesford, Windham, Moccasin, Monarch, Ackley Lake State Park, Sapphire Village, Utica, Danvers, Coffee Creek, Square Butte, and Benchland.
Instruction: 
For your protection move to an interior room on the lowest floor of a building.
Area Description: 
Cascade, MT; Chouteau, MT; Fergus, MT; Judith Basin, MT
Forcast Office: 
NWS Great Falls MT
Sender: 
w-nws.webmaster@noaa.gov