WWUS45 KRIW 161836 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 1236 PM MDT Wed Apr 16 2025 WYZ003-005-171300- /O.UPG.KRIW.WW.Y.0021.250417T0900Z-250418T0900Z/ /O.EXB.KRIW.WS.W.0010.250417T0900Z-250418T0900Z/ Cody Foothills-Southwest Bighorn Basin- Including the cities of Meeteetse, Clark, Cody, and Thermopolis 1236 PM MDT Wed Apr 16 2025 ...WINTER STORM WARNING IN EFFECT FROM 3 AM THURSDAY TO 3 AM MDT FRIDAY... * WHAT...Snow expected. Total snow accumulations between 4 and 8 inches. Winds gusting as high as 55 mph. * WHERE...Southwest Bighorn Basin and Cody Foothills. * WHEN...From 3 AM Thursday to 3 AM MDT Friday. * IMPACTS...Travel could be difficult, especially along Wyoming Highway 120 between Cody and Thermopolis. * ADDITIONAL DETAILS...Snow accumulations may be hindered during the daytime hours Thursday due to temperatures ranging from 30 to 35 and recent warm temperatures. 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 https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ WYZ015-171300- /O.CON.KRIW.WS.W.0010.250417T0900Z-250418T1800Z/ Wind River Mountains East- 1236 PM MDT Wed Apr 16 2025 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 AM THURSDAY TO NOON MDT FRIDAY... * WHAT...Heavy snow expected. Total snow accumulations between 12 and 18 inches. Winds gusting as high as 50 mph. * WHERE...Wind River Mountains East. * WHEN...From 3 AM Thursday to noon MDT Friday. * IMPACTS...Travel could be very difficult, especially across South Pass. Widespread blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ WYZ010-011-171300- /O.CON.KRIW.WS.W.0010.250417T1200Z-250418T1800Z/ Northeast Johnson County-Southeast Johnson County- Including the cities of Kaycee and Buffalo 1236 PM MDT Wed Apr 16 2025 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM THURSDAY TO NOON MDT FRIDAY... * WHAT...Heavy snow expected. Total snow accumulations between 3 and 6 inches. Winds gusting as high as 40 mph. * WHERE...Johnson County. * WHEN...From 6 AM Thursday to noon MDT Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Thursday morning and evening commutes. * ADDITIONAL DETAILS...Snow accumulations may be hindered during the daytime hours Thursday due to temperatures ranging from 30 to 35 and recent warm temperatures. 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 https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ WYZ016>019-171300- /O.CON.KRIW.WS.W.0010.250417T1200Z-250418T1800Z/ Upper Wind River Basin-Wind River Basin-Lander Foothills-Green Mountains and Rattlesnake Range- Including the cities of Dubois, Riverton, Shoshoni, Jeffrey City, and Lander 1236 PM MDT Wed Apr 16 2025 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM THURSDAY TO NOON MDT FRIDAY... * WHAT...Heavy snow possible. Total snow accumulations between 4 and 8 inches possible, with 8 to 12 inches possible in the Lander Foothills. Northerly wind frequently gusting 20 to 30 mph. * WHERE...Green Mountains and Rattlesnake Range, Lander Foothills, Upper Wind River Basin, and Wind River Basin. * WHEN...From 6 AM Thursday to noon MDT Friday. * IMPACTS...Travel could be difficult. The hazardous conditions could impact the Thursday morning and evening commutes. * ADDITIONAL DETAILS...Snow accumulations may be hindered during the daytime hours Thursday, especially at elevations below 5500 feet, due to temperatures ranging from 30 to 35 and recent warm temperatures. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ WYZ020-171300- /O.CON.KRIW.WS.W.0010.250417T1200Z-250418T1800Z/ Natrona County Lower Elevations- Including the cities of Casper 1236 PM MDT Wed Apr 16 2025 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM THURSDAY TO NOON MDT FRIDAY... * WHAT...Heavy snow expected. Total snow accumulations between 4 and 8 inches. Winds gusting as high as 45 mph. * WHERE...Natrona County Lower Elevations. * WHEN...From 6 AM Thursday to noon MDT Friday. * IMPACTS...Travel could be difficult. The hazardous conditions could impact the Thursday morning and evening commutes. * ADDITIONAL DETAILS...Snow accumulations may be hindered during the daytime hours Thursday due to temperatures ranging from 30 to 35 and recent warm temperatures. 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 https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ WYZ022-171300- /O.CON.KRIW.WS.W.0010.250417T1200Z-250418T1800Z/ Casper Mountain- 1236 PM MDT Wed Apr 16 2025 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM THURSDAY TO NOON MDT FRIDAY... * WHAT...Heavy snow expected. Total snow accumulations between 8 and 12 inches. Winds gusting as high as 40 mph. * WHERE...Casper Mountain. * WHEN...From 6 AM Thursday to noon MDT Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Thursday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ WYZ002-171300- /O.CON.KRIW.WW.Y.0021.250417T0700Z-250418T1800Z/ Absaroka Mountains- 1236 PM MDT Wed Apr 16 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 AM THURSDAY TO NOON MDT FRIDAY... * WHAT...Snow expected. Total snow accumulations between 6 and 10 inches. Winds gusting as high as 60 mph. * WHERE...Absaroka Mountains. * WHEN...From 1 AM Thursday to noon MDT Friday. * IMPACTS...Travel could be difficult, especially over Chief Joseph 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 . && $$ WYZ007>009-171300- /O.CON.KRIW.WW.Y.0021.250417T0700Z-250418T1800Z/ Owl Creek and Bridger Mountains-Bighorn Mountains West-Bighorn Mountains Southeast- 1236 PM MDT Wed Apr 16 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 AM THURSDAY TO NOON MDT FRIDAY... * WHAT...Snow expected. Total snow accumulations between 6 and 10 inches. Winds gusting as high as 50 mph. * WHERE...Owl Creek and Bridger Mountains, Bighorn Mountains Southeast, and Bighorn Mountains West. * WHEN...From 1 AM Thursday to noon MDT Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Thursday morning and evening commutes. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Accumulations through Wind River Canyon will be 4 to 6 inches, and Thursday daytime accumulations may be hindered due to recent warm weather and temperatures ranging from 30 to 35. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Lowe