< Winter Weather Advisory Idaho, Wyoming, Montana | Effective 03/12/2026 00:37

Winter Weather Advisory Idaho, Wyoming, Montana | Effective 03/12/2026 00:37

Headline: 
Winter Weather Advisory issued March 12 at 1:37AM MDT until March 13 at 12:00AM MDT by NWS Riverton WY
Event: 
Winter Weather Advisory
Urgency: 
Expected
Effective: 
March 12, 2026 - 12:37am
Expires: 
March 12, 2026 - 5:00pm
Description: 
* WHAT...Snow expected. Total snow accumulations 1 to 4 inches across most higher elevations, and accumulations 6 to 11 inches over the Pitchstone Plateau. Up to 1 inch near Mammoth. Winds gusting as high as 60 mph. * WHERE...Yellowstone National Park. * WHEN...Until midnight MDT tonight. * IMPACTS...A combination of falling snow and strong winds will make travel difficult, especially in the backcountry.
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