< Winter Storm Warning Montana | Effective 03/11/2026 23:46

Winter Storm Warning Montana | Effective 03/11/2026 23:46

Headline: 
Winter Storm Warning issued March 12 at 12:46AM MDT until March 13 at 12:00PM MDT by NWS Great Falls MT
Event: 
Winter Storm Warning
Urgency: 
Expected
Effective: 
March 11, 2026 - 11:46pm
Expires: 
March 12, 2026 - 5:00pm
Description: 
* WHAT...Heavy snow. Additional snow accumulations between 8 and 16 inches, with the highest peaks seeing up to 24 inches. Winds gusting as high as 65 to 85 mph on Thursday. * WHERE...Upper Blackfoot and MacDonald Pass and Northwest Beaverhead County. * WHEN...Until noon MDT Friday. * IMPACTS...Travel could be very difficult and tire chains may be required for some vehicles. Those in the backcountry should ensure they are prepared for dangerous conditions. Strong winds could cause tree damage. * ADDITIONAL DETAILS...This will be a mult-day snowfall, with lulls in the snow at times.
Instruction: 
If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1 or visiting the MDT Road Report website. To see a graphical representation of the degree of stress on young livestock please visit our webpage and select Local Programs then Cold Air Advisory for Newborn Livestock.
Area Description: 
Upper Blackfoot and MacDonald Pass; Northwest Beaverhead County
Forcast Office: 
NWS Great Falls MT