winterstormwarning.com

Winter Storm Warning, Idaho

Severe

Another 1 to 5 inches of snow, gusts up to 35 mph. Plan on slippery road conditions.

Ended Monday, December 22, 2025.

Issued
Expires
Updated

Places in this warning

How much

Snow across the area
Another 1 to 5 inches
Wind gusts
Up to 35 mph

Map

Map of Idaho with this warning The Winter Storm Warning covers Ketchum, Sun Valley, Stanley. I-15I-84KetchumStanleyClaytonIDAHOMONTANA20 mi I-15I-84KetchumStanleyIDAHOMONTANA25 mi KetchumStanleyIDAHOMONTANA50 mi KetchumStanleyIDAHOMONTANA50 mi
  • This warning
  • Interstates
  • 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
Moderate snow. Additional snow accumulations of 1 to 5 inches. Winds gusting as high as 35 MPH.
Where
Big Lost Highlands/Copper Basin, Frank Church Wilderness, Sawtooth/Stanley Basin, and Sun Valley Region.
When
Until 11 in the morning this morning.
Impacts
Plan on slippery road conditions. The hazardous conditions could impact the morning commute.

Updates

  1. Allowed to end on time. December 22, 2025
  2. Snow totals lowered from 2 to 6 inches to 1 to 5 inches. December 22, 2025
  3. Reissued with no change to the times or amounts. December 21, 2025
  4. Reissued with no change to the times or amounts. December 21, 2025
  5. Winter Storm Warning issued for Sunday overnight through Monday morning. December 20, 2025