< Winter Storm Warning Montana | Effective 03/13/2026 04:37

Winter Storm Warning Montana | Effective 03/13/2026 04:37

Headline: 
Winter Storm Warning issued March 13 at 5:37AM MDT until March 14 at 12:00PM MDT by NWS Missoula MT
Event: 
Winter Storm Warning
Urgency: 
Expected
Effective: 
March 13, 2026 - 4:37am
Expires: 
March 14, 2026 - 4:45am
Description: 
* WHAT...Heavy snow and blowing snow expected. There is a likelihood of major winter weather impacts. Total snow accumulations of 10 to 20 inches for Highway 12 over MacDonald Pass and Georgetown Lake and the higher terrain. Total snow accumulations of 1 to 6 inches at lower elevations. Winds gusts to 40 mph. * WHERE...Highway 12 Garrison to Elliston, Homestake Pass, Butte, MacDonald Pass, and Georgetown Lake. * WHEN...Until noon MDT Saturday. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. For MAJOR winter weather impacts, expect considerable disruptions to normal activities. Dangerous or impossible traveling conditions. Avoid travel in the impacted areas if possible. Widespread closures and disruptions to infrastructure may occur. The hazardous conditions could impact the Friday morning and evening commutes, especially over higher passes. Gusty winds could bring down tree branches.
Instruction: 
Persons should delay all travel if possible. If travel is absolutely necessary, drive with extreme caution and be prepared for sudden changes in visibility. Leave plenty of room between you and the motorist ahead of you, and allow extra time to reach your destination. Avoid sudden braking or acceleration, and be especially cautious on hills or when making turns. Make sure your car is winterized and in good working order.
Area Description: 
Butte/Blackfoot Region
Forcast Office: 
NWS Missoula MT