Active Weather Alerts
Winter Weather Advisory
Issued: 8:10 PM Jan. 4, 2026 – National Weather Service
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST MONDAY... * WHAT...Snow. Total snow accumulations 2 to 4 inches with amounts around a trace nearby Mammoth. Locally higher amounts up to 10 inches near the South Entrance and up to 14 inches in southwestern portions of the park. * WHERE...Yellowstone National Park. * WHEN...Until 11 AM MST Monday. * IMPACTS...Travel could be difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. &&
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