Winter Storm Warning, Wyoming

Severe

Another 1 to 3 inches of snow, gusts up to 35 mph. Travel could be very difficult over Granite and Powder River Passes.

Ended Saturday, December 6, 2025.

Issued: Thursday, December 4, 2:22 in the morning
Expires: Saturday, December 6, 5 in the evening
Updated: December 6, 2025

Places in this warning

How much

Snow across the area: Another 1 to 3 inches
Wind gusts: Up to 35 mph Blowing snow on open roads

Map

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: Additional snow accumulation of 1 to 3 inches. Winds gusting as high as 35 mph may lead to areas of blowing snow.
Where: Bighorn Mountains West.
When: Until 5 in the evening this afternoon.
Impacts: Travel could be very difficult over Granite and Powder River Passes.

Updates

Saturday 4:55 in the afternoon
Allowed to end on time. December 6, 2025
Saturday 2:08 in the afternoon
Snow totals lowered from 8 to 15 inches to 1 to 3 inches. Ended for part of the area. December 6, 2025
Saturday 12:51 at night
Snow totals lowered from 10 to 18 inches to 8 to 15 inches. December 6, 2025
Friday 12:53 in the afternoon
Snow totals lowered from 10 to 20 inches to 10 to 18 inches. Extended to Saturday, 5 in the evening. Area expanded. Now also replaces the Winter Weather Advisory. December 5, 2025
Friday 12:44 at night
Reissued with no change to the times or amounts. December 5, 2025
Thursday 12:29 in the afternoon
Reissued with no change to the times or amounts. December 4, 2025
Thursday 5:17 in the morning
Reissued with no change to the times or amounts. December 4, 2025
Thursday 2:37 in the morning
Reissued with no change to the times or amounts. December 4, 2025
Thursday 2:22 in the morning
Replaces the Winter Storm Watch. December 4, 2025