Dense Fog Advisory in Judith Basin County and Judith Gap

Dense Fog Advisory issued December 24 at 10:35PM MST until December 25 at 3:00AM MST by NWS Great Falls MT

• Event Start: 2025-12-24T22:35:00-07:00
• Event End: 2025-12-25T03:00:00-07:00
• Event Certainty: Likely
• Event Severity: Moderate

Event Description

• WHAT: Variable visibility down to a quarter mile or less in dense freezing fog.
• WHERE: A portion of north central Montana.
• WHEN: Until 3 AM MST Thursday.
• IMPACTS: Low visibility and frost deposition and or freezing rain and drizzle could make driving conditions hazardous.
• ADDITIONAL DETAILS: The fog should begin to lift in a west to east fashion through 3 AM MST.

Event Instructions

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.