WWUS45 KCYS 182041 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 241 PM MDT Mon May 18 2026 WYZ110-190000- /O.EXP.KCYS.BZ.W.0001.000000T0000Z-260518T2100Z/ /O.EXA.KCYS.WW.Y.0017.000000T0000Z-260519T0000Z/ North Snowy Range Foothills- Including the cities of Elk Mountain and Arlington 241 PM MDT Mon May 18 2026 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM MDT THIS EVENING... ...BLIZZARD WARNING WILL EXPIRE AT 3 PM MDT THIS AFTERNOON... * WHAT...Snow. Additional snow accumulations up to three inches. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Heavy wet snow. Roads, and especially bridges, will likely become slick and hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ103-114-190000- /O.CON.KCYS.WS.W.0007.000000T0000Z-260519T0000Z/ North Laramie Range-Snowy Range- Including the cities of Centennial, Albany, and Garrett 241 PM MDT Mon May 18 2026 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Snow. Additional snow accumulations up to three inches. * WHERE...Snowy Range and North Laramie Range. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Heavy wet snow. Roads, and especially bridges, will likely become slick and hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ104-190000- /O.CON.KCYS.WS.W.0007.000000T0000Z-260519T0000Z/ Ferris/Seminoe/Shirley Mountains- Including the cities of Seminoe Dam 241 PM MDT Mon May 18 2026 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Snow. Additional snow accumulations up to three inches. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80, and Ferris/Seminoe/Shirley Mountains. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Heavy wet snow. Roads, and especially bridges, will likely become slick and hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. Persons should delay all travel if possible. If travel is absolutely necessary, drive with extreme caution and be prepared for sudden changes in visibility. Leave plenty of room between you and the motorist ahead of you, and allow extra time to reach your destination. Avoid sudden braking or acceleration, and be especially cautious on hills or when making turns. Make sure your car is winterized and in good working order. && $$ WYZ109-190000- /O.CON.KCYS.WS.W.0007.000000T0000Z-260519T0000Z/ Central Carbon County- Including the cities of Rawlins 241 PM MDT Mon May 18 2026 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Snow. Additional snow accumulations up to three inches. Winds gusting as high as 45 mph. * WHERE...Central Carbon County. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Persons should delay all travel if possible. If travel is absolutely necessary, drive with extreme caution and be prepared for sudden changes in visibility. Leave plenty of room between you and the motorist ahead of you,and allow extra time to reach your destination. Avoid sudden braking or acceleration, and be especially cautious on hills or when making turns. Make sure your car is winterized and in good working order. && $$ WYZ112-190000- /O.CON.KCYS.WS.W.0007.000000T0000Z-260519T0000Z/ Sierra Madre Range- 241 PM MDT Mon May 18 2026 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Snow. Additional snow accumulations up to 4 inches. Winds gusting as high as 40 mph. * WHERE...Sierra Madre Range. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning and evening commutes. Strong winds could cause tree damage. * ADDITIONAL DETAILS...North to northeast facing slopes and ridges will see the highest accumulations, with accumulations much lower on the western side of the range near Dixon and Baggs. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ116-190000- /O.CON.KCYS.WS.W.0007.000000T0000Z-260519T0000Z/ South Laramie Range- Including the cities of Vedauwoo, Pumpkin Vine, and Buford 241 PM MDT Mon May 18 2026 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Snow. Additional snow accumulations up to two inches. * WHERE...South Laramie Range including the Interstate 80 Summit between Cheyenne and Laramie. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Persons should delay all travel if possible. If travel is absolutely necessary, drive with extreme caution and be prepared for sudden changes in visibility. Leave plenty of room between you and the motorist ahead of you, and allow extra time to reach your destination. Avoid sudden braking or acceleration, and be especially cautious on hills or when making turns. Make sure your car is winterized and in good working order. && $$ WYZ101-105-106-117-190000- /O.CON.KCYS.WW.Y.0017.000000T0000Z-260519T0000Z/ Converse County Lower Elevations-Shirley Basin-Central Laramie Range and Southwest Platte County-South Laramie Range Foothills- Including the cities of Medicine Bow, Whitaker, Bordeaux, Glenrock, Federal, Deer Creek, Douglas, Bill, Shirley Basin, and Horse Creek 241 PM MDT Mon May 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Snow. Additional snow accumulations up to two inches. * WHERE...Converse County Lower Elevations, Shirley Basin, Central Laramie Range and Southwest Platte County, and South Laramie Range Foothills. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury. && $$ WYZ111-190000- /O.CON.KCYS.WW.Y.0017.000000T0000Z-260519T0000Z/ Southwest Carbon County- Including the cities of Baggs 241 PM MDT Mon May 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Snow. Additional snow accumulations up to two inches. Winds gusting as high as 45 mph. * WHERE...Southwest Carbon County. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Plan on slippery road conditions. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ115-190000- /O.CON.KCYS.WW.Y.0017.000000T0000Z-260519T0000Z/ Laramie Valley- Including the cities of Laramie and Bosler 241 PM MDT Mon May 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Snow. Additional snow accumulations up to one inch. * WHERE...Laramie Valley. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Monday evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ CG