Montana Winter Weather Advisory | Effective 05/15/2026 10:38

Headline: 
Winter Weather Advisory issued May 15 at 11:38AM MDT until May 18 at 12:00AM MDT by NWS Missoula MT
Event: 
Winter Weather Advisory
Urgency: 
Expected
Effective: 
May 15, 2026 - 10:38am
Expires: 
May 17, 2026 - 11:00pm
Description: 
* WHAT...Snow expected. Total snow accumulations of 2 to 6 inches in the mountain terrain above 5000 feet. Slushy accumulations possible on Marias Pass. * WHERE...The higher terrain of Glacier National Park. * WHEN...From midnight Saturday Night to midnight MDT Sunday Night. * IMPACTS...Plan on slippery backcountry road conditions. Cold, wet and breezy conditions may create hypothermia risk for those recreating in the backcountry.
Instruction: 
Slow down and use caution while traveling on high mountain roads. Pack full waterproof layers and thermal gear to ensure you stay warm and dry if recreating in the backcountry.
Area Description: 
West Glacier Region; Potomac/Seeley Lake Region
Forcast Office: 
NWS Missoula MT