Winter Weather Advisory

Locations Affected

Hazelton Peak, WY ∙ Bighorn National Forest, WY ∙ Ten Sleep, WY ∙ Hunt Mountain, WY ∙ Cloud Peak, WY ∙ Black Tooth Mountain, WY ∙ Meadow Lark Lake, WY

Full Alert Message

URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 101 PM MDT Sun May 18 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT MONDAY NIGHT... * WHAT...Snow expected. Total snow accumulations of 5 to 9 inches. Local amounts over a foot possible above 9500 feet. Winds gusting as high as 40 mph. * WHERE...Bighorn Mountains Southeast and Bighorn Mountains West. * WHEN...From midnight tonight to midnight MDT Monday Night. * IMPACTS...Travel could be difficult, including over Powder River and Granite Passes. * ADDITIONAL DETAILS...The greatest impacts will be from late Sunday night through Monday morning. 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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