Winter Weather Advisory in Southern Rocky Mountain Front

Winter Weather Advisory issued December 5 at 5:18PM MST until December 6 at 9:00PM MST by NWS Great Falls MT

• Event Start: 2025-12-05T17:18:00-07:00
• Event End: 2025-12-06T21:00:00-07:00
• Event Certainty: Likely
• Event Severity: Moderate

Event Description

• WHAT: Snow expected. Total snow accumulations of 4 to 9 inches. Isolated higher amounts. Winds gusting as high as 55 mph.
• WHERE: The Continental Divide along the Rocky Mountain Front.
• WHEN: Until 9 PM MST Saturday.
• 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. Blowing snow could significantly reduce visibility. Strong winds could cause 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. Remember, a Winter Weather Advisory means that there is at least an 80% chance of minor impacts due to winter weather conditions during the advisory period.