Active Weather Alerts
Winter Weather Advisory
Issued: 7:23 PM Mar. 13, 2026 – National Weather Service
...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM TO 11 PM MDT SATURDAY... * WHAT...Snow expected. Total snow accumulations of an inch or two at Mammoth and the Lamar Valley, 4 to 8 inches throughout the Park, and 10 to 15 inches over the Pitchstone Plateau and high peaks. Winds gusting 35 to 50 mph. * WHERE...Yellowstone National Park. * WHEN...From 6 AM to 11 PM MDT Saturday. * IMPACTS...Expect wintry travel and backcountry conditions. 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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