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Winter Weather Warnings / Watches / Advisories
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
588 WWUS45 KRIW 120842 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 142 AM MST Wed Feb 12 2025 WYZ001-130000- /O.NEW.KRIW.WS.A.0002.250213T1800Z-250215T1800Z/ Yellowstone National Park- Including the cities of Mammoth, Old Faithful, and Lake 142 AM MST Wed Feb 12 2025 ...WINTER STORM WATCH IN EFFECT FROM THURSDAY MORNING THROUGH SATURDAY MORNING... * WHAT...Heavy snow possible. Total snow accumulations between 3 and 6 inches across the north half of the Park, with higher amounts of 8 to 16 inches for southern portions of the Park. Southwestern YNP including Pitchstone Plateau may see amounts of 1 to 2 feet. Accumulations around Mammoth and the Lamar Valley will range from 1 to 4 inches. * WHERE...Yellowstone National Park. * WHEN...From Thursday morning through Saturday morning. * IMPACTS...Backcountry travel could be very difficult with limited visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. 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. && $$ WYZ012-024-130000- /O.NEW.KRIW.WS.A.0002.250213T1800Z-250215T2100Z/ Teton and Gros Ventre Mountains-Salt River and Wyoming Ranges- 142 AM MST Wed Feb 12 2025 ...WINTER STORM WATCH IN EFFECT FROM THURSDAY MORNING THROUGH SATURDAY AFTERNOON... * WHAT...Heavy snow possible. Total snow accumulations of 1 to 2 feet. Winds could gust as high as 40 mph at times. * WHERE...Teton and Gros Ventre Mountains along with the Salt River and Wyoming Ranges. * WHEN...From Thursday morning through Saturday afternoon. * IMPACTS...Travel could be very difficult, especially across Teton and Togwotee Passes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter. For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info. && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Dziewaltowski