Winter Weather Advisory

Locations Affected

Ishawooa Mesa, WY ∙ Crystal Peak, WY ∙ Alta, WY ∙ Overlook Mountain, WY ∙ Francs Peak, WY ∙ Mount Leidy, WY ∙ The Ramshorn, WY ∙ Pinnacle Peak, WY ∙ Pilot Peak, WY ∙ Pat O'Hara Peak, WY

Full Alert Message

URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 120 PM MDT Sun Oct 19 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT MONDAY... * WHAT...Snow and blowing snow as a result of strong winds are expected. Total snow accumulations 6 to 10 inches, mainly above 8000 feet. Winds gusting as high as 60 mph. Locally stronger winds around Chief Joseph Hwy 60 to 70 mph are expected through Sunday evening. * WHERE...Absaroka Mountains and Teton and Gros Ventre Mountains. * WHEN...Until Noon MDT Monday. Greatest impacts will occur overnight. * IMPACTS...Plan on slippery road conditions, especially over mountain passes. Travel across Togwotee Pass could be particularly difficult due to strong winds and falling snow. Occasional near white-out conditions are possible. * ADDITIONAL DETAILS...Strongest winds will occur during the day Sunday through Sunday evening. Snow will begin later Sunday afternoon, generally after 6 PM. The combination of wind and snow will be the primary threat with this event. 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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