Montana Severe Thunderstorm Warning | Effective 05/13/2026 17:43

Headline: 
Severe Thunderstorm Warning issued May 13 at 6:43PM MDT until May 13 at 7:15PM MDT by NWS Billings MT
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
May 13, 2026 - 5:43pm
Expires: 
May 13, 2026 - 6:15pm
Description: 
At 643 PM MDT, severe thunderstorms were located along a line from 25 miles south of Big Timber to 7 miles southwest of Red Lodge, moving northeast at 20 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Red Lodge, Columbus, Bridger, Joliet, Fromberg, Absarokee, Bearcreek, Cooney Reservoir State Park, Fox, Roberts, Luther, Roscoe, Washoe, Fishtail, Boyd, Belfry, Alpine, Dean, Edgar and Rockvale.
Instruction: 
Seek shelter inside a well-built structure and stay away from windows. These storms are capable of producing damaging winds. Wind damage with these storms will occur before any rain or lightning. Do not wait for the sound of thunder before taking cover. Seek shelter immediately inside a sturdy structure and stay away from windows.
Area Description: 
Carbon, MT; Stillwater, MT
Forcast Office: 
NWS Billings MT