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Snow and Sub-Freezing Temperatures Impact Centennial Mountains/Island Park

A Special Weather Statement has been issued for Centennial Mountains/Island Park due to unexpected snowfall and sub-freezing temperatures, with an additional 1-3 inches of snow possible tonight.

Staff Writer
10/11/2026 · Clark & Jefferson Region edition

Drivers in the Centennial Mountains and Island Park area are advised to use caution tonight due to unexpected snowfall and sub-freezing temperatures. The National Weather Service (NWS) in Pocatello, ID, issued a Special Weather Statement at 7:38 PM MDT today, October 11, indicating that temperatures have dropped more rapidly than anticipated.

Raynolds Pass, Henrys Lake, and Targhee Pass have already reported 1 to 2 inches of snow, accompanied by sub-freezing conditions. The NWS forecasts an additional 1 to 3 inches of snow possible in these areas through tomorrow morning. Light precipitation is currently reaching Henrys Lake.

This Special Weather Statement is effective immediately and expires tonight, October 11, at 10:30 PM UTC (4:30 PM MDT). Please exercise extreme caution if traveling through the affected areas.

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