Montana Winter Weather Advisory | Effective 05/17/2026 10:51

Headline: 
Winter Weather Advisory issued May 17 at 11:51AM MDT until May 18 at 12:00AM MDT by NWS Great Falls MT
Event: 
Winter Weather Advisory
Urgency: 
Expected
Effective: 
May 17, 2026 - 10:51am
Expires: 
May 17, 2026 - 11:00pm
Description: 
* WHAT...Snow. Additional snow accumulations up to two inches. Winds gusting as high as 40 mph. * WHERE...The Continental Divide along the Rocky Mountain Front, Upper Blackfoot and MacDonald Pass, and Elkhorn and Boulder Mountains. * WHEN...Until midnight MDT tonight. * IMPACTS...Plan on slippery backcountry road conditions. Wet and raw conditions may create hypothermia risk for those recreating in the backcountry.
Instruction: 
Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1 or visiting the MDT Road Report website.
Area Description: 
East Glacier Park Region; Southern Rocky Mountain Front; Upper Blackfoot and MacDonald Pass; Elkhorn and Boulder Mountains
Forcast Office: 
NWS Great Falls MT