Montana Winter Storm Warning | Effective 04/15/2026 13:20

Headline: 
Winter Storm Warning issued April 15 at 2:20PM MDT until April 17 at 12:00AM MDT by NWS Great Falls MT
Event: 
Winter Storm Warning
Urgency: 
Expected
Effective: 
April 15, 2026 - 1:20pm
Expires: 
April 16, 2026 - 5:15am
Description: 
* WHAT...Heavy snow expected. Total snow accumulations between 5 and 10 inches at lower elevations and mountain passes, with 10 to 15 inches in the mountains. Winds gusting as high as 50 mph. * WHERE...Gallatin and Madison County Mountains and Centennial Mountains. * WHEN...From 6 PM this evening to midnight MDT Thursday Night. * IMPACTS...Travel could be very difficult and tire chains may be required for some vehicles. Falling and or blowing snow may significantly reduce visibility. Those in the backcountry should ensure they are prepared for dangerous conditions.
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: 
Gallatin and Madison County Mountains and Centennial Mountains
Forcast Office: 
NWS Great Falls MT