< Winter Weather Advisory 03/04/2026 12:16 Idaho, Wyoming, Montana

Winter Weather Advisory 03/04/2026 12:16 Idaho, Wyoming, Montana

Headline: 
Winter Weather Advisory issued March 4 at 1:16PM MST until March 5 at 5:00PM MST by NWS Riverton WY
Event: 
Winter Weather Advisory
Urgency: 
Expected
Effective: 
March 4, 2026 - 12:16pm
Expires: 
March 5, 2026 - 6:30am
Description: 
* WHAT...Snow expected. Total snow accumulations 6 to 12 inches over the Pitchstone Plateau of southwest YNP. 3 to 6 inches in central portions of Yellowstone, and between 1 and 4 inches in Lamar Valley and Mammoth. * WHERE...Yellowstone National Park. * WHEN...From 11 PM this evening to 5 PM MST Thursday. * IMPACTS...Backcountry travel could be difficult.
Instruction: 
Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter. For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info.
Area Description: 
Yellowstone National Park
Forcast Office: 
NWS Riverton WY