Idaho, Wyoming, Montana Winter Storm Warning | Effective 04/16/2026 12:18

Headline: 
Winter Storm Warning issued April 16 at 1:18PM MDT until April 17 at 6:00AM MDT by NWS Riverton WY
Event: 
Winter Storm Warning
Urgency: 
Expected
Effective: 
April 16, 2026 - 12:18pm
Expires: 
April 17, 2026 - 5:00am
Description: 
* WHAT...Heavy snow. Additional snow accumulations up to 3 inches with amounts nearing 6 inches along the highest peaks. Winds gusting as high as 35 mph. * WHERE...Absaroka Mountains, Teton and Gros Ventre Mountains, and Yellowstone National Park. * WHEN...Until 6 AM MDT Friday. * IMPACTS...Travel could be very difficult, especially across Teton Pass and Togwotee Pass. Strong winds will cause limited visibility.
Instruction: 
If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. 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; Absaroka Mountains; Teton and Gros Ventre Mountains
Forcast Office: 
NWS Riverton WY
Sender: 
w-nws.webmaster@noaa.gov