Active Weather Alerts
Winter Storm Warning
Issued: 7:15 PM Oct. 26, 2025 – National Weather Service
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT MONDAY... * WHAT...Heavy snow expected. Additional snow accumulations between 6 and 12 inches across the southern half of the Park with less farther north. Winds gusting as high as 45 mph. * WHERE...Yellowstone National Park. * WHEN...Until 6 PM MDT Monday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult. * ADDITIONAL DETAILS...Only 1 to 3 inches of snow is expected at Mammoth. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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 . &&
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