Montana Moderate Special Weather Statement | Effective 08/17/2026 15:58

Headline: 
Special Weather Statement issued August 17 at 4:58PM MDT by NWS Great Falls MT
Event: 
Special Weather Statement
Urgency: 
Expected
Effective: 
August 17, 2026 - 3:58pm
Expires: 
August 17, 2026 - 4:45pm
Description: 
At 457 PM MDT, Doppler radar was tracking a strong thunderstorm near West Yellowstone, moving northeast at 20 mph. HAZARD...Wind gusts up to 50 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... West Yellowstone.
Instruction: 
If outdoors, consider seeking shelter inside a building. This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service.
Area Description: 
Gallatin and Madison County Mountains and Centennial Mountains
Forcast Office: 
NWS Great Falls MT
Sender: 
w-nws.webmaster@noaa.gov