Montana Severe Thunderstorm Warning | Effective 05/13/2026 13:59

Headline: 
Severe Thunderstorm Warning issued May 13 at 2:59PM MDT until May 13 at 3:45PM MDT by NWS Great Falls MT
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
May 13, 2026 - 1:59pm
Expires: 
May 13, 2026 - 2:45pm
Description: 
SVRTFX The National Weather Service in Great Falls has issued a * Severe Thunderstorm Warning for... Broadwater County in southwestern Montana... Jefferson County in southwestern Montana... * Until 345 PM MDT. * At 258 PM MDT, a severe thunderstorm was located 17 miles northeast of Whitehall, or 19 miles southeast of Boulder, moving northeast at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Townsend, Boulder, Whitehall, Montana City, Toston, Basin, Wickes, Alhambra, Corbin, Elkhorn State Park, Cardwell, Winston, Radersburg, Elk Park, Clancy, Silos, and Jefferson City.
Instruction: 
For your protection move to an interior room on the lowest floor of a building.
Area Description: 
Broadwater, MT; Jefferson, MT
Forcast Office: 
NWS Great Falls MT