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Home Return to list Winter Weather Advisory 0020 Issued by the Riverton Forecast Office
Action: New Issued At: 2025-03-31 01:52:12 627 WWUS45 KRIW 310652 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 1252 AM MDT Mon Mar 31 2025 WYZ001-012-014-024-312200- /O.NEW.KRIW.WW.Y.0020.250331T1200Z-250402T0000Z/ Yellowstone National Park-Teton and Gros Ventre Mountains-Wind River Mountains West-Salt River and Wyoming Ranges- Including the cities of Mammoth, Lake, and Old Faithful 1252 AM MDT Mon Mar 31 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM THIS MORNING TO 6 PM MDT TUESDAY... * WHAT...Snow expected. Total snow accumulations between 4 and 8 inches in mountain valleys, and 8 to 12 inches for mountains and passes, with localized higher totals on the highest peaks. Winds gusting as high as 30 to 40 mph. * WHERE...Wind River Mountains West, Teton and Gros Ventre Mountains, Yellowstone National Park, and Salt River and Wyoming Ranges. * WHEN...From 6 AM this morning to 6 PM MDT Tuesday. * IMPACTS...Expect winter travel conditions over mountain passes. 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 . && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Lowe Action: Continued Issued At: 2025-03-31 14:05:06 399 WWUS45 KRIW 311904 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 104 PM MDT Mon Mar 31 2025 WYZ001-012-014-024-011300- /O.CON.KRIW.WW.Y.0020.000000T0000Z-250402T0000Z/ Yellowstone National Park-Teton and Gros Ventre Mountains-Wind River Mountains West-Salt River and Wyoming Ranges- Including the cities of Old Faithful, Mammoth, and Lake 104 PM MDT Mon Mar 31 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT TUESDAY... * WHAT...Snow expected. Additional snow accumulations between 1 and 8 inches. Total snow accumulations through Tuesday evening expected to be between 4 and 8 inches in mountain valleys, and 8 to 12 inches for mountains and passes, with localized higher totals on the highest peaks. Winds gusting as high as 30 to 40 mph. * WHERE...Wind River Mountains West, Teton and Gros Ventre Mountains, Yellowstone National Park, and Salt River and Wyoming Ranges. * WHEN...Until 6 PM MDT Tuesday. * IMPACTS...Travel could be difficult and could impact the Monday evening and Tuesday morning commutes, especially across Togwotee Pass, Teton Pass, and Salt River Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Gerhardt Action: Time and Area Extended Issued At: 2025-04-01 01:41:53 160 WWUS45 KRIW 010641 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 1241 AM MDT Tue Apr 1 2025 WYZ008-009-020000- /O.EXB.KRIW.WW.Y.0020.250401T1800Z-250403T0000Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 1241 AM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO 6 PM MDT WEDNESDAY... * WHAT...Snow expected. Total snow accumulations between 6 and 12 inches across the mountain passes. Winds gusting as high as 40 mph. * WHERE...Bighorn Mountains Southeast and Bighorn Mountains West. * WHEN...From noon today to 6 PM MDT Wednesday. * IMPACTS...Travel could be difficult and could impact the Tuesday evening and Wednesday morning commutes, especially across Powder River and Granite Passes. 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 . && $$ WYZ001-012-014-024-020000- /O.CON.KRIW.WW.Y.0020.000000T0000Z-250402T0000Z/ Yellowstone National Park-Teton and Gros Ventre Mountains-Wind River Mountains West-Salt River and Wyoming Ranges- Including the cities of Mammoth, Lake, and Old Faithful 1241 AM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Snow. Additional snow accumulations up to 4 to 6 inches across the mountain passes, locally higher for upper terrain. Winds gusting as high as 35 mph. * WHERE...Wind River Mountains West, Teton and Gros Ventre Mountains, Yellowstone National Park, and Salt River and Wyoming Ranges. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel could be difficult and could impact the Tuesday morning and evening commutes, especially across Togwotee Pass, Teton Pass, and Salt River Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Lowe Action: Continued Issued At: 2025-04-01 01:41:53 160 WWUS45 KRIW 010641 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 1241 AM MDT Tue Apr 1 2025 WYZ008-009-020000- /O.EXB.KRIW.WW.Y.0020.250401T1800Z-250403T0000Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 1241 AM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO 6 PM MDT WEDNESDAY... * WHAT...Snow expected. Total snow accumulations between 6 and 12 inches across the mountain passes. Winds gusting as high as 40 mph. * WHERE...Bighorn Mountains Southeast and Bighorn Mountains West. * WHEN...From noon today to 6 PM MDT Wednesday. * IMPACTS...Travel could be difficult and could impact the Tuesday evening and Wednesday morning commutes, especially across Powder River and Granite Passes. 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 . && $$ WYZ001-012-014-024-020000- /O.CON.KRIW.WW.Y.0020.000000T0000Z-250402T0000Z/ Yellowstone National Park-Teton and Gros Ventre Mountains-Wind River Mountains West-Salt River and Wyoming Ranges- Including the cities of Mammoth, Lake, and Old Faithful 1241 AM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Snow. Additional snow accumulations up to 4 to 6 inches across the mountain passes, locally higher for upper terrain. Winds gusting as high as 35 mph. * WHERE...Wind River Mountains West, Teton and Gros Ventre Mountains, Yellowstone National Park, and Salt River and Wyoming Ranges. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel could be difficult and could impact the Tuesday morning and evening commutes, especially across Togwotee Pass, Teton Pass, and Salt River Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Lowe Action: Continued Issued At: 2025-04-01 14:01:21 214 WWUS45 KRIW 011900 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 100 PM MDT Tue Apr 1 2025 WYZ010-020000- /O.EXB.KRIW.WW.Y.0020.250402T0500Z-250403T0000Z/ Northeast Johnson County- Including the cities of Buffalo 100 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 6 PM MDT WEDNESDAY... * WHAT...Snow expected with gusty winds between 25-35 mph. 2-3 inches are forecast along the I-90 corridor from Buffalo to the Sheridan County line. Elsewhere can expect 1-2 inches. * WHERE...Northeast Johnson County. * WHEN...From 11 PM this evening to 6 PM MDT Wednesday. * IMPACTS...Travel could be difficult with gusty winds and periods of heavy snow. This could impact the Wednesday morning and evening commutes along I-90. 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 . && $$ WYZ001-012-014-024-020000- /O.CON.KRIW.WW.Y.0020.000000T0000Z-250402T0000Z/ Yellowstone National Park-Teton and Gros Ventre Mountains-Wind River Mountains West-Salt River and Wyoming Ranges- Including the cities of Mammoth, Old Faithful, and Lake 100 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Additional snow accumulations up to two inches remain possible. * WHERE...Wind River Mountains West, Teton and Gros Ventre Mountains, Yellowstone National Park, and Salt River and Wyoming Ranges. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel could be difficult and could impact the evening commute, especially across Togwotee Pass, Teton Pass, and Salt River Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ WYZ008-009-020000- /O.CON.KRIW.WW.Y.0020.000000T0000Z-250403T0000Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 100 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT WEDNESDAY... * WHAT...Snow expected with total snow accumulations between 6 and 12 inches across the mountain passes. Winds gusting as high as 40 mph. * WHERE...Bighorn Mountains Southeast and Bighorn Mountains West. * WHEN...Until 6 PM MDT Wednesday. * IMPACTS...Travel could be difficult and could impact the Tuesday evening and Wednesday morning commutes, especially across Powder River and Granite Passes. 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 . && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Gerhardt Action: Time and Area Extended Issued At: 2025-04-01 14:01:21 214 WWUS45 KRIW 011900 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 100 PM MDT Tue Apr 1 2025 WYZ010-020000- /O.EXB.KRIW.WW.Y.0020.250402T0500Z-250403T0000Z/ Northeast Johnson County- Including the cities of Buffalo 100 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 6 PM MDT WEDNESDAY... * WHAT...Snow expected with gusty winds between 25-35 mph. 2-3 inches are forecast along the I-90 corridor from Buffalo to the Sheridan County line. Elsewhere can expect 1-2 inches. * WHERE...Northeast Johnson County. * WHEN...From 11 PM this evening to 6 PM MDT Wednesday. * IMPACTS...Travel could be difficult with gusty winds and periods of heavy snow. This could impact the Wednesday morning and evening commutes along I-90. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ WYZ001-012-014-024-020000- /O.CON.KRIW.WW.Y.0020.000000T0000Z-250402T0000Z/ Yellowstone National Park-Teton and Gros Ventre Mountains-Wind River Mountains West-Salt River and Wyoming Ranges- Including the cities of Mammoth, Old Faithful, and Lake 100 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Additional snow accumulations up to two inches remain possible. * WHERE...Wind River Mountains West, Teton and Gros Ventre Mountains, Yellowstone National Park, and Salt River and Wyoming Ranges. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel could be difficult and could impact the evening commute, especially across Togwotee Pass, Teton Pass, and Salt River Pass. 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 . && $$ WYZ008-009-020000- /O.CON.KRIW.WW.Y.0020.000000T0000Z-250403T0000Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 100 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT WEDNESDAY... * WHAT...Snow expected with total snow accumulations between 6 and 12 inches across the mountain passes. Winds gusting as high as 40 mph. * WHERE...Bighorn Mountains Southeast and Bighorn Mountains West. * WHEN...Until 6 PM MDT Wednesday. * IMPACTS...Travel could be difficult and could impact the Tuesday evening and Wednesday morning commutes, especially across Powder River and Granite Passes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Gerhardt Action: Continued Issued At: 2025-04-01 14:01:21 214 WWUS45 KRIW 011900 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 100 PM MDT Tue Apr 1 2025 WYZ010-020000- /O.EXB.KRIW.WW.Y.0020.250402T0500Z-250403T0000Z/ Northeast Johnson County- Including the cities of Buffalo 100 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 6 PM MDT WEDNESDAY... * WHAT...Snow expected with gusty winds between 25-35 mph. 2-3 inches are forecast along the I-90 corridor from Buffalo to the Sheridan County line. Elsewhere can expect 1-2 inches. * WHERE...Northeast Johnson County. * WHEN...From 11 PM this evening to 6 PM MDT Wednesday. * IMPACTS...Travel could be difficult with gusty winds and periods of heavy snow. This could impact the Wednesday morning and evening commutes along I-90. 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 . && $$ WYZ001-012-014-024-020000- /O.CON.KRIW.WW.Y.0020.000000T0000Z-250402T0000Z/ Yellowstone National Park-Teton and Gros Ventre Mountains-Wind River Mountains West-Salt River and Wyoming Ranges- Including the cities of Mammoth, Old Faithful, and Lake 100 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Additional snow accumulations up to two inches remain possible. * WHERE...Wind River Mountains West, Teton and Gros Ventre Mountains, Yellowstone National Park, and Salt River and Wyoming Ranges. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel could be difficult and could impact the evening commute, especially across Togwotee Pass, Teton Pass, and Salt River Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ WYZ008-009-020000- /O.CON.KRIW.WW.Y.0020.000000T0000Z-250403T0000Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 100 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT WEDNESDAY... * WHAT...Snow expected with total snow accumulations between 6 and 12 inches across the mountain passes. Winds gusting as high as 40 mph. * WHERE...Bighorn Mountains Southeast and Bighorn Mountains West. * WHEN...Until 6 PM MDT Wednesday. * IMPACTS...Travel could be difficult and could impact the Tuesday evening and Wednesday morning commutes, especially across Powder River and Granite Passes. 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 . && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Gerhardt Action: Continued Issued At: 2025-04-01 18:38:00 201 WWUS45 KRIW 012337 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 537 PM MDT Tue Apr 1 2025 WYZ001-012-014-024-020045- /O.EXP.KRIW.WW.Y.0020.000000T0000Z-250402T0000Z/ Yellowstone National Park-Teton and Gros Ventre Mountains-Wind River Mountains West-Salt River and Wyoming Ranges- Including the cities of Lake, Mammoth, and Old Faithful 537 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MDT THIS EVENING... The heaviest snowfall is coming to an end across the western mountains and greater Yellowstone National Park. Thus, the Winter Weather Advisory will be allowed to expire as scheduled. Light snow is expected to continue overnight tonight, but further accumulations will remain light. $$ WYZ008-009-021500- /O.CON.KRIW.WW.Y.0020.000000T0000Z-250403T0000Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 537 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT WEDNESDAY... * WHAT...Snow expected with total snow accumulations between 6 and 12 inches across the mountain passes. Winds gusting as high as 40 mph. * WHERE...Bighorn Mountains Southeast and Bighorn Mountains West. * WHEN...Until 6 PM MDT Wednesday. * IMPACTS...Travel could be difficult and could impact the Tuesday evening and Wednesday morning commutes, especially across Powder River and Granite Passes. 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 . && $$ WYZ010-021500- /O.CON.KRIW.WW.Y.0020.250402T0500Z-250403T0000Z/ Northeast Johnson County- Including the cities of Buffalo 537 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 6 PM MDT WEDNESDAY... * WHAT...Snow expected with gusty winds between 25 and 35 mph. 2 to 3 inches are forecast along the Interstate 90 corridor from Buffalo to the Sheridan County line. Elsewhere can expect 1 to 2 inches. * WHERE...Northeast Johnson County. * WHEN...From 11 PM this evening to 6 PM MDT Wednesday. * IMPACTS...Travel could be difficult with gusty winds and periods of heavy snow. This could impact the Wednesday morning and evening commutes along Interstate 90. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Straub Action: Continued Issued At: 2025-04-01 18:38:00 201 WWUS45 KRIW 012337 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 537 PM MDT Tue Apr 1 2025 WYZ001-012-014-024-020045- /O.EXP.KRIW.WW.Y.0020.000000T0000Z-250402T0000Z/ Yellowstone National Park-Teton and Gros Ventre Mountains-Wind River Mountains West-Salt River and Wyoming Ranges- Including the cities of Lake, Mammoth, and Old Faithful 537 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MDT THIS EVENING... The heaviest snowfall is coming to an end across the western mountains and greater Yellowstone National Park. Thus, the Winter Weather Advisory will be allowed to expire as scheduled. Light snow is expected to continue overnight tonight, but further accumulations will remain light. $$ WYZ008-009-021500- /O.CON.KRIW.WW.Y.0020.000000T0000Z-250403T0000Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 537 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT WEDNESDAY... * WHAT...Snow expected with total snow accumulations between 6 and 12 inches across the mountain passes. Winds gusting as high as 40 mph. * WHERE...Bighorn Mountains Southeast and Bighorn Mountains West. * WHEN...Until 6 PM MDT Wednesday. * IMPACTS...Travel could be difficult and could impact the Tuesday evening and Wednesday morning commutes, especially across Powder River and Granite Passes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ WYZ010-021500- /O.CON.KRIW.WW.Y.0020.250402T0500Z-250403T0000Z/ Northeast Johnson County- Including the cities of Buffalo 537 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 6 PM MDT WEDNESDAY... * WHAT...Snow expected with gusty winds between 25 and 35 mph. 2 to 3 inches are forecast along the Interstate 90 corridor from Buffalo to the Sheridan County line. Elsewhere can expect 1 to 2 inches. * WHERE...Northeast Johnson County. * WHEN...From 11 PM this evening to 6 PM MDT Wednesday. * IMPACTS...Travel could be difficult with gusty winds and periods of heavy snow. This could impact the Wednesday morning and evening commutes along Interstate 90. 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 . && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Straub Action: Expired Issued At: 2025-04-01 18:38:00 201 WWUS45 KRIW 012337 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 537 PM MDT Tue Apr 1 2025 WYZ001-012-014-024-020045- /O.EXP.KRIW.WW.Y.0020.000000T0000Z-250402T0000Z/ Yellowstone National Park-Teton and Gros Ventre Mountains-Wind River Mountains West-Salt River and Wyoming Ranges- Including the cities of Lake, Mammoth, and Old Faithful 537 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MDT THIS EVENING... The heaviest snowfall is coming to an end across the western mountains and greater Yellowstone National Park. Thus, the Winter Weather Advisory will be allowed to expire as scheduled. Light snow is expected to continue overnight tonight, but further accumulations will remain light. $$ WYZ008-009-021500- /O.CON.KRIW.WW.Y.0020.000000T0000Z-250403T0000Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 537 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT WEDNESDAY... * WHAT...Snow expected with total snow accumulations between 6 and 12 inches across the mountain passes. Winds gusting as high as 40 mph. * WHERE...Bighorn Mountains Southeast and Bighorn Mountains West. * WHEN...Until 6 PM MDT Wednesday. * IMPACTS...Travel could be difficult and could impact the Tuesday evening and Wednesday morning commutes, especially across Powder River and Granite Passes. 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 . && $$ WYZ010-021500- /O.CON.KRIW.WW.Y.0020.250402T0500Z-250403T0000Z/ Northeast Johnson County- Including the cities of Buffalo 537 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 6 PM MDT WEDNESDAY... * WHAT...Snow expected with gusty winds between 25 and 35 mph. 2 to 3 inches are forecast along the Interstate 90 corridor from Buffalo to the Sheridan County line. Elsewhere can expect 1 to 2 inches. * WHERE...Northeast Johnson County. * WHEN...From 11 PM this evening to 6 PM MDT Wednesday. * IMPACTS...Travel could be difficult with gusty winds and periods of heavy snow. This could impact the Wednesday morning and evening commutes along Interstate 90. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Straub Action: Continued Issued At: 2025-04-01 23:54:11 150 WWUS45 KRIW 020453 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 1053 PM MDT Tue Apr 1 2025 WYZ008-009-021500- /O.CON.KRIW.WW.Y.0020.000000T0000Z-250403T0000Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 1053 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT WEDNESDAY... * WHAT...Snow expected with total snow accumulations between 6 and 12 inches across the mountain passes. Winds gusting as high as 40 mph. * WHERE...Bighorn Mountains. * WHEN...Until 6 PM MDT Wednesday. * IMPACTS...Travel could be difficult and could impact the Tuesday evening and Wednesday morning commutes, especially across Powder River and Granite Passes. 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 . && $$ WYZ010-021500- /O.CON.KRIW.WW.Y.0020.250402T0500Z-250403T0000Z/ Northeast Johnson County- Including the cities of Buffalo 1053 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT WEDNESDAY... * WHAT...Snow expected with gusty winds between 25 and 35 mph. 2 to 3 inches are forecast along the Interstate 90 corridor from Buffalo to the Sheridan County line. Elsewhere can expect 1 to 2 inches. * WHERE...Northeast Johnson County. * WHEN...Until 6 PM MDT Wednesday. * IMPACTS...Travel could be difficult with gusty winds and periods of heavy snow. This could impact the Wednesday morning and evening commutes along Interstate 90. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Straub Action: Continued Issued At: 2025-04-01 23:54:11 150 WWUS45 KRIW 020453 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 1053 PM MDT Tue Apr 1 2025 WYZ008-009-021500- /O.CON.KRIW.WW.Y.0020.000000T0000Z-250403T0000Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 1053 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT WEDNESDAY... * WHAT...Snow expected with total snow accumulations between 6 and 12 inches across the mountain passes. Winds gusting as high as 40 mph. * WHERE...Bighorn Mountains. * WHEN...Until 6 PM MDT Wednesday. * IMPACTS...Travel could be difficult and could impact the Tuesday evening and Wednesday morning commutes, especially across Powder River and Granite Passes. 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 . && $$ WYZ010-021500- /O.CON.KRIW.WW.Y.0020.250402T0500Z-250403T0000Z/ Northeast Johnson County- Including the cities of Buffalo 1053 PM MDT Tue Apr 1 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT WEDNESDAY... * WHAT...Snow expected with gusty winds between 25 and 35 mph. 2 to 3 inches are forecast along the Interstate 90 corridor from Buffalo to the Sheridan County line. Elsewhere can expect 1 to 2 inches. * WHERE...Northeast Johnson County. * WHEN...Until 6 PM MDT Wednesday. * IMPACTS...Travel could be difficult with gusty winds and periods of heavy snow. This could impact the Wednesday morning and evening commutes along Interstate 90. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Straub Action: Continued Issued At: 2025-04-02 01:49:15 515 WWUS45 KRIW 020648 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 1248 AM MDT Wed Apr 2 2025 WYZ022-030000- /O.EXB.KRIW.WW.Y.0020.250402T1200Z-250403T0000Z/ Casper Mountain- 1248 AM MDT Wed Apr 2 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM THIS MORNING TO 6 PM MDT THIS EVENING... * WHAT...Snow expected. Additional snow accumulations up to 3 to 5 inches. * WHERE...Casper Mountain. * WHEN...From 6 AM this morning to 6 PM MDT this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Wednesday morning and evening commutes. 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 . && $$ WYZ008-009-030000- /O.CON.KRIW.WW.Y.0020.000000T0000Z-250403T0000Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 1248 AM MDT Wed Apr 2 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Snow. Additional snow accumulations up to 4 to 8 inches. Winds gusting as high as 40 mph. * WHERE...Bighorn Mountains. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel could be difficult and could impact the Wednesday morning and evening commutes, especially across Powder River and Granite Passes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ WYZ010-030000- /O.CON.KRIW.WW.Y.0020.000000T0000Z-250403T0000Z/ Northeast Johnson County- Including the cities of Buffalo 1248 AM MDT Wed Apr 2 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Snow expected with gusty winds between 25 and 35 mph. 2 to 3 inches are forecast along the Interstate 90 corridor from Buffalo to the Sheridan County line. Elsewhere can expect 1 to 2 inches. * WHERE...Northeast Johnson County. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel could be difficult with gusty winds and periods of heavy snow. This could impact the Wednesday morning and evening commutes along Interstate 90. 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 . && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Lowe Action: Time and Area Extended Issued At: 2025-04-02 01:49:15 515 WWUS45 KRIW 020648 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 1248 AM MDT Wed Apr 2 2025 WYZ022-030000- /O.EXB.KRIW.WW.Y.0020.250402T1200Z-250403T0000Z/ Casper Mountain- 1248 AM MDT Wed Apr 2 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM THIS MORNING TO 6 PM MDT THIS EVENING... * WHAT...Snow expected. Additional snow accumulations up to 3 to 5 inches. * WHERE...Casper Mountain. * WHEN...From 6 AM this morning to 6 PM MDT this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Wednesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ WYZ008-009-030000- /O.CON.KRIW.WW.Y.0020.000000T0000Z-250403T0000Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 1248 AM MDT Wed Apr 2 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Snow. Additional snow accumulations up to 4 to 8 inches. Winds gusting as high as 40 mph. * WHERE...Bighorn Mountains. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel could be difficult and could impact the Wednesday morning and evening commutes, especially across Powder River and Granite Passes. 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 . && $$ WYZ010-030000- /O.CON.KRIW.WW.Y.0020.000000T0000Z-250403T0000Z/ Northeast Johnson County- Including the cities of Buffalo 1248 AM MDT Wed Apr 2 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Snow expected with gusty winds between 25 and 35 mph. 2 to 3 inches are forecast along the Interstate 90 corridor from Buffalo to the Sheridan County line. Elsewhere can expect 1 to 2 inches. * WHERE...Northeast Johnson County. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel could be difficult with gusty winds and periods of heavy snow. This could impact the Wednesday morning and evening commutes along Interstate 90. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Lowe Action: Continued Issued At: 2025-04-02 01:49:15 515 WWUS45 KRIW 020648 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 1248 AM MDT Wed Apr 2 2025 WYZ022-030000- /O.EXB.KRIW.WW.Y.0020.250402T1200Z-250403T0000Z/ Casper Mountain- 1248 AM MDT Wed Apr 2 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM THIS MORNING TO 6 PM MDT THIS EVENING... * WHAT...Snow expected. Additional snow accumulations up to 3 to 5 inches. * WHERE...Casper Mountain. * WHEN...From 6 AM this morning to 6 PM MDT this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Wednesday morning and evening commutes. 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 . && $$ WYZ008-009-030000- /O.CON.KRIW.WW.Y.0020.000000T0000Z-250403T0000Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 1248 AM MDT Wed Apr 2 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Snow. Additional snow accumulations up to 4 to 8 inches. Winds gusting as high as 40 mph. * WHERE...Bighorn Mountains. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel could be difficult and could impact the Wednesday morning and evening commutes, especially across Powder River and Granite Passes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ WYZ010-030000- /O.CON.KRIW.WW.Y.0020.000000T0000Z-250403T0000Z/ Northeast Johnson County- Including the cities of Buffalo 1248 AM MDT Wed Apr 2 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Snow expected with gusty winds between 25 and 35 mph. 2 to 3 inches are forecast along the Interstate 90 corridor from Buffalo to the Sheridan County line. Elsewhere can expect 1 to 2 inches. * WHERE...Northeast Johnson County. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel could be difficult with gusty winds and periods of heavy snow. This could impact the Wednesday morning and evening commutes along Interstate 90. 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 . && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Lowe Action: Expired Issued At: 2025-04-02 18:53:38 775 WWUS45 KRIW 022353 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 553 PM MDT Wed Apr 2 2025 WYZ008>010-022-030100- /O.EXP.KRIW.WW.Y.0020.000000T0000Z-250403T0000Z/ Bighorn Mountains West-Bighorn Mountains Southeast-Northeast Johnson County-Casper Mountain- Including the cities of Buffalo 553 PM MDT Wed Apr 2 2025 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MDT THIS EVENING... While some convective snow showers will continue for a few hours this evening, snowfall accumulations will be less than an inch. Thus, the Advisories will be allowed to expire at 6 PM MDT. $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Rowe | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||