Winter Weather Advisory in East Glacier Park Region

Winter Weather Advisory issued December 11 at 3:03AM MST until December 11 at 3:00PM MST by NWS Great Falls MT

• Event Start: 2025-12-11T03:03:00-07:00
• Event End: 2025-12-11T15:00:00-07:00
• Event Certainty: Likely
• Event Severity: Moderate

Event Description

• WHAT: For the Winter Weather Advisory, snow. Additional snow accumulations up to one inch. Winds gusting as high as 70 mph. For the Winter Storm Watch, heavy snow possible. Total snow accumulations between 5 and 10 inches possible. Winds could gust as high as 35 mph.
• WHERE: East Glacier Park Region Zone.
• WHEN: For the Winter Weather Advisory, until 3 PM MST this afternoon. For the Winter Storm Watch, from late tonight through late Friday night.
• IMPACTS: Roads, and especially bridges and overpasses, will likely become slick and hazardous. Tire chains may be required for some vehicles if traveling through mountain passes. Very strong winds could cause extensive tree damage.

Event Instructions

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.

Winter Storm Watch in East Glacier Park Region

Winter Storm Watch issued December 11 at 3:03AM MST until December 13 at 5:00AM MST by NWS Great Falls MT

• Event Start: 2025-12-12T00:00:00-07:00
• Event End: 2025-12-13T05:00:00-07:00
• Event Certainty: Possible
• Event Severity: Severe

Event Description

• WHAT: For the Winter Weather Advisory, snow. Additional snow accumulations up to one inch. Winds gusting as high as 70 mph. For the Winter Storm Watch, heavy snow possible. Total snow accumulations between 5 and 10 inches possible. Winds could gust as high as 35 mph.
• WHERE: East Glacier Park Region Zone.
• WHEN: For the Winter Weather Advisory, until 3 PM MST this afternoon. For the Winter Storm Watch, from late tonight through late Friday night.
• IMPACTS: Roads, and especially bridges and overpasses, will likely become slick and hazardous. Tire chains may be required for some vehicles if traveling through mountain passes. Very strong winds could cause extensive tree damage.

Event Instructions

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.