Winter Weather Advisory in Big Belt, Bridger and Castle Mountains

Winter Weather Advisory issued October 23 at 8:41PM MDT until October 24 at 12:00AM MDT by NWS Great Falls MT

• Event Start: 2026-10-23T20:41:00-06:00
• Event End: 2026-10-24T00:00:00-06:00
• Event Certainty: Likely
• Event Severity: Moderate

Event Description

• WHAT: Snow. Additional snow accumulations up to one inch. Winds gusting as high as 35 mph.
• WHERE: Big Belt, Bridger and Castle Mountains, Gallatin and Madison County Mountains and Centennial Mountains, and Ruby Mountains and Southern Beaverhead Mountains.
• WHEN: Until midnight MDT tonight.
• IMPACTS: Plan on slippery road conditions.

Event Instructions

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.