Montana Severe Thunderstorm Warning | Effective 05/13/2026 17:20

Headline: 
Severe Thunderstorm Warning issued May 13 at 6:20PM MDT until May 13 at 6:30PM MDT by NWS Billings MT
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
May 13, 2026 - 5:20pm
Expires: 
May 13, 2026 - 5:30pm
Description: 
At 620 PM MDT, severe thunderstorms were located along a line from 16 miles northeast of Livingston to 26 miles south of Big Timber, moving northeast at 35 mph. HAZARD...70 mph wind gusts. SOURCE...Weather Station reported. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. Locations impacted include... Livingston, Big Timber, Mc Leod, Springdale and Greycliff. Localized higher gusts are possible.
Instruction: 
Anyone outdoors should move to shelter inside a well-built structure and stay away from windows. These storms have produced widespread 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: 
Park, MT; Sweet Grass, MT
Forcast Office: 
NWS Billings MT