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🟡 Moderate
Winter Weather Advisory
Bear River Range; Caribou Range; Big Hole Mountains; Centennial Mountains/Island Park
Winter Weather Advisory issued December 17 at 7:37PM MST until December 20 at 5:00AM MST by NWS Pocatello ID
Alert Description
* WHAT...Snow expected. Total snow accumulations between 5 and 9 inches below 7000 feet with around 10 to 14 inches above 7000 feet. Winds gusting as high as around 40 mph. * WHERE...Big Hole Mountains, Centennial Mountains - Island Park, Bear River Range, and Caribou Range. * WHEN...From 11 AM Thursday to 5 AM MST Saturday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Thursday evening and Friday morning commutes. Gusty winds could bring down tree branches.
Safety Instructions
Slow down and use caution while traveling. Call 5 1 1 or visit 511.idaho.gov for the latest road conditions.
Time Information
Effective
Dec 18, 2025, 6:00 PM
Expires
Dec 18, 2025, 10:00 PM
Issued
Dec 18, 2025, 2:37 AM
Alert Details
Severity
Moderate
Urgency
Expected
Certainty
Likely
Category
Met
Issued By
NWS Pocatello ID
National Weather Service