Winter Storm Watch in Northern High Plains

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: Snow possible. Total snow accumulations between 1 and 3 inches possible.
• WHERE: The Interstate 15 Corridor north of Power, and Northern High Plains.
• WHEN: From late tonight through late Friday night.
• IMPACTS: Plan on slippery road conditions.

Event Instructions

Remember, a Winter Storm Watch means that there is at least a 50% chance of impactful winter weather conditions during the watch period.