winterstormwarning.com

Winter Storm Watch, Idaho

Severe

Gusts up to 45 mph. Travel could be very difficult to impossible.

Ended Wednesday, December 17, 2025.

Replaced by the Winter Storm Warning on Wednesday, December 17, 1:37 in the afternoon.

Issued
Expires

Places in this watch

How much

Wind gusts
Up to 45 mph

Map

Map of Idaho with this watch The Winter Storm Watch covers Ketchum, Sun Valley, Stanley. I-15I-84KetchumStanleyClaytonIDAHOMONTANA20 mi I-15I-84KetchumStanleyIDAHOMONTANA25 mi KetchumStanleyIDAHOMONTANA50 mi KetchumStanleyIDAHOMONTANA50 mi
  • This watch
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  • US highways
Alert area: National Weather Service. Borders and highways: U.S. Census Bureau. Lakes, rivers and other countries: Natural Earth. Open this area in OpenStreetMap

Details from the National Weather Service

What
Light to moderate valley snow and heavy mountain snow. Several inches of accumulation below 7,000 feet, including 4 to 6 inches in Stanley and Ketchum. One to two feet accumulation above 7,000 feet, including two feet on Galena Summit. Wind gusts as high as 45 mph.
Where
Big Lost Highlands/Copper Basin, Frank Church Wilderness, Sawtooth/Stanley Basin, and Sun Valley Region.
When
From Thursday morning through Saturday morning.
Impacts
Travel could be very difficult to impossible. The hazardous conditions could impact the morning and evening commutes. Gusty winds could lead to blowing and drifting snow and reduced visibility.

Updates

  1. Winter Storm Watch issued for Thursday morning through Saturday morning. December 16, 2025