####018005740#### WWUS45 KRIW 051003 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 403 AM MDT Sun May 5 2024 WYZ012-060115- /O.UPG.KRIW.WS.A.0012.240506T0000Z-240508T1200Z/ /O.NEW.KRIW.WS.W.0014.240506T0000Z-240508T0500Z/ Teton and Gros Ventre Mountains- 403 AM MDT Sun May 5 2024 ...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 11 PM MDT TUESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 1 to 2 feet. Winds could gust as high as 45 mph. * WHERE...Teton and Gros Ventre Mountains. * WHEN...From 6 PM this evening to 11 PM MDT Tuesday. * IMPACTS...Travel could be very difficult, especially in the backcountry. * ADDITIONAL DETAILS...The highest winds occur Monday and Tuesday afternoon. Heaviest snow occurs Monday morning into Monday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit weather.gov/riw/winter. For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info. && $$ WYZ001-060115- /O.UPG.KRIW.WS.A.0012.240506T0000Z-240508T1200Z/ /O.NEW.KRIW.WW.Y.0025.240506T0500Z-240508T0000Z/ Yellowstone National Park- Including the cities of Lake, Mammoth, and Old Faithful 403 AM MDT Sun May 5 2024 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 6 PM MDT TUESDAY... * WHAT...Snow expected. Total snow accumulations of 10 to 18 inches in southwest portions of the Park. Snowfall 1 to 5 inches elsewhere. Winds could gust as high as 45 mph. * WHERE...Yellowstone National Park. * WHEN...From 11 PM this evening to 6 PM MDT Tuesday. * IMPACTS...Travel could be very difficult, especially in the backcountry. * ADDITIONAL DETAILS...The highest winds occur Monday and Tuesday afternoons. Heaviest snow occurs Monday morning into Monday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit weather.gov/riw/winter. For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info. && $$ WYZ014-015-060115- /O.NEW.KRIW.WW.Y.0025.240506T0000Z-240507T0000Z/ Wind River Mountains West-Wind River Mountains East- 403 AM MDT Sun May 5 2024 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 PM MDT MONDAY... * WHAT...Snow expected. Total snow accumulations of 8 to 16 inches with lower amounts expected in the southern portions of the range. Winds could gust as high as 65 mph. * WHERE...Wind River Mountains West and Wind River Mountains East. * WHEN...From 6 PM this evening to 6 PM MDT Monday. * IMPACTS...Travel could be very difficult, especially on WY Hwy 28 over South Pass. * ADDITIONAL DETAILS...The highest winds occur Sunday and Monday afternoons. 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 weather.gov/riw/winter. For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info. && $$ WYZ024-060115- /O.NEW.KRIW.WW.Y.0025.240506T0500Z-240507T0000Z/ Salt River and Wyoming Ranges- 403 AM MDT Sun May 5 2024 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 6 PM MDT MONDAY... * WHAT...Snow expected. Total snow accumulations of 6 to 12 inches. Winds could gust as high as 55 mph. * WHERE...Salt River and Wyoming Ranges. * WHEN...From 11 PM this evening to 6 PM MDT Monday. * IMPACTS...Travel could be very difficult, especially over Salt River Pass * ADDITIONAL DETAILS...The highest winds occur Monday and Tuesday afternoons. Heaviest snow occurs Monday morning into Monday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit weather.gov/riw/winter. For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info. && $$ WYZ008-009-060115- /O.CON.KRIW.WS.A.0012.240506T1200Z-240507T1800Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 403 AM MDT Sun May 5 2024 ...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH TUESDAY MORNING... * WHAT...Heavy snow possible. Total snow accumulations of 6 to 12 inches possible. Winds could gust as high as 45 mph. * WHERE...Bighorn Mountains West and Bighorn Mountains Southeast. * WHEN...From Monday morning through Tuesday morning. * IMPACTS...Travel could be very difficult, such as over Powder River and Granite Passes. * ADDITIONAL DETAILS...There is a fair bit of uncertainty with storm track into Tuesday and beyond, which could effect snow totals. Snow could continue through Tuesday and beyond. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ For more information from the National Weather Service visit https://weather.gov/riw