Alerts from NWS Cheyenne WY (UNOFFICIAL)
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cys.nws-bot.us
Alerts from NWS Cheyenne WY (UNOFFICIAL)
@cys.nws-bot.us
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Unofficial bot sharing alerts from NWS Cheyenne WY.

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cys.nws-bot.us
CYS issues Area Forecast Discussion (AFD) at Dec 27, 3:15 PM MST
at Sat, 27 Dec 2025 22:16:04 +0000 via IEMbot
Additional Details Here.
December 27, 2025 at 10:27 PM
cys.nws-bot.us
Special Weather Statement issued December 27 at 3:00PM MST by NWS Cheyenne WY
Additional Details Here.
At 259 PM MST...An area of snow showers was affecting portions of southeastern Albany and northwestern Laramie Counties. Periods of snow showers will persist through 400 PM MST. HAZARD...Winds in excess of 25 mph and visibilities less than one mile. SOURCE...Radar and Webcams. IMPACT...Hazardous travel conditions due to slick roads and low visibilities. Locations impacted include... Laramie, West Laramie, Antelope Buttes, Nine Mile, Rogers Canyon, Boulder Ridge, Tie Siding, Woods Landing-Jelm, Pumpkin Vine, Vedauwoo Campground, North Crow Campground, Boswell Creek Campground, Ames Monument, Horse Creek, Laramie Regional Airport, The Buttes, Hutton Lake, Yellow Pine Campground, Tie City Campground, and Vedauwoo. This includes Interstate 80 in Wyoming between mile markers 298 and 334.
December 27, 2025 at 10:15 PM
cys.nws-bot.us
CYS issues AN AREA OF SNOW SHOWERS WILL AFFECT SOUTHEASTERN ALBANY AND NORTHWESTERN LARAMIE COUNTIES for Laramie Valley, Snowy Range, South Laramie Range, South Laramie Range Footh... at Sat, 27 Dec 2025 22:00:14 +0000 via IEMbot
Additional Details Here.
December 27, 2025 at 10:07 PM
cys.nws-bot.us
Special Weather Statement issued December 27 at 2:18PM MST by NWS Cheyenne WY
Additional Details Here.
At 217 PM MST...An area of snow showers was affecting portions of southeastern Albany and northwestern Laramie Counties. Periods of snow showers will persist through 300 PM MST. HAZARD...Winds in excess of 25 mph and visibilities less than one mile. SOURCE...Radar and Webcams. IMPACT...Hazardous travel conditions due to slick roads and low visibilities. Locations impacted include... Laramie, Albany, West Laramie, Antelope Buttes, Nine Mile, Rogers Canyon, Boulder Ridge, Tie Siding, Woods Landing-Jelm, Pumpkin Vine, Vedauwoo Campground, North Crow Campground, Boswell Creek Campground, Ames Monument, Horse Creek, Laramie Regional Airport, The Buttes, Hutton Lake, Yellow Pine Campground, and Wyocolo. This includes Interstate 80 in Wyoming between mile markers 296 and 333.
December 27, 2025 at 9:30 PM
cys.nws-bot.us
CYS issues AN AREA OF SNOW SHOWERS WILL AFFECT SOUTHEASTERN ALBANY AND NORTHWESTERN LARAMIE COUNTIES for Laramie Valley, Snowy Range, South Laramie Range, South Laramie Range Footh... at Sat, 27 Dec 2025 21:18:09 +0000 via IEMbot
Additional Details Here.
December 27, 2025 at 9:27 PM
cys.nws-bot.us
CYS issues AN AREA OF SNOW SHOWERS WILL AFFECT SOUTHEASTERN ALBANY AND NORTHWESTERN LARAMIE COUNTIES for Laramie Valley, Snowy Range, South Laramie Range, South Laramie Range Footh... at Sat, 27 Dec 2025 20:31:05 +0000 via IEMbot
Additional Details Here.
December 27, 2025 at 8:47 PM
cys.nws-bot.us
Special Weather Statement issued December 27 at 1:31PM MST by NWS Cheyenne WY
Additional Details Here.
At 129 PM MST...An area of snow showers was affecting portions of southeastern Albany and northwestern Laramie Counties. Periods of snow showers will persist through 215 PM MST. HAZARD...Winds in excess of 25 mph and visibilities less than one mile. SOURCE...Radar and Webcams. IMPACT...Hazardous travel conditions due to slick roads and low visibilities. Locations impacted include... Laramie, Albany, West Laramie, Antelope Buttes, Nine Mile, Rogers Canyon, Boulder Ridge, Tie Siding, Woods Landing-Jelm, Pumpkin Vine, Vedauwoo Campground, North Crow Campground, Boswell Creek Campground, Ames Monument, Horse Creek, Laramie Regional Airport, The Buttes, Hutton Lake, Yellow Pine Campground, and Wyocolo. This includes Interstate 80 in Wyoming between mile markers 296 and 334.
December 27, 2025 at 8:45 PM
cys.nws-bot.us
8 S Sibley Peak [Platte Co, WY] Mesonet reports Non-Tstm Wnd Gst of M58 MPH at 1:02 PM MST -- Mesonet station WY1 8.4 S Sibley Peak (WYDOT).
at Sat, 27 Dec 2025 20:25:22 +0000 via IEMbot
Additional Details Here.
December 27, 2025 at 8:27 PM
cys.nws-bot.us
8 S Sibley Peak [Platte Co, WY] Mesonet reports Non-Tstm Wnd Gst of M62 MPH at 12:52 PM MST -- Mesonet station WY1 8.4 S Sibley Peak (WYDOT).
at Sat, 27 Dec 2025 20:25:23 +0000 via IEMbot
Additional Details Here.
December 27, 2025 at 8:27 PM
cys.nws-bot.us
CYS issues High Wind Warning for East Platte County [WY] till Dec 27, 8:00 PM MST
at Sat, 27 Dec 2025 19:49:01 +0000 via IEMbot
Additional Details Here.
December 27, 2025 at 8:07 PM
cys.nws-bot.us
CYS issues High Wind Watch valid at Dec 28, 11:00 AM MST for South Laramie Range, South Laramie Range Foothills [WY] till Dec 28, 8:00 PM MST
at Sat, 27 Dec 2025 19:49:01 +0000 via IEMbot
Additional Details Here.
December 27, 2025 at 8:07 PM
cys.nws-bot.us
🚨 High Wind Warning issued December 27 at 12:48PM MST until December 27 at 8:00PM MST by NWS Cheyenne WY 🚨
Additional Details Here.
* WHAT...West winds 25 to 35 mph with gusts up to 65 mph. * WHERE...East Platte County. Mainly along Interstate 25 between Wheatland and the Platte/Converse County line. * WHEN...Until 8 PM MST this evening. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight or high profile vehicles, including campers and tractor trailers. * WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...South Laramie Range and Foothills including the Interstate 80 Summit between Cheyenne and Laramie. * WHEN...From Sunday morning through Sunday evening. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight or high profile vehicles, including campers and tractor trailers.
December 27, 2025 at 8:00 PM
cys.nws-bot.us
CYS continues Winter Weather Advisory for Southwest Carbon County, Upper North Platte River Basin [WY] till Dec 28, 12:00 AM MST
at Sat, 27 Dec 2025 19:41:55 +0000 via IEMbot
Additional Details Here.
December 27, 2025 at 7:47 PM
cys.nws-bot.us
CYS continues Winter Storm Warning for Sierra Madre Range [WY] till Dec 28, 5:00 AM MST
at Sat, 27 Dec 2025 19:41:55 +0000 via IEMbot
Additional Details Here.
December 27, 2025 at 7:47 PM
cys.nws-bot.us
🚨 Winter Storm Warning issued December 27 at 12:41PM MST until December 28 at 5:00AM MST by NWS Cheyenne WY 🚨
Additional Details Here.(1/2)
* WHAT...Heavy snow. Additional snow accumulations between 4 and 8 inches. * WHERE...Sierra Madre Range. * WHEN...Until 5 AM MST Sunday. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Outdoor recreation could become life threatening to those caught unprepared for severe winter conditions. Hikers and snowmobilers may easily become disoriented. Frostbite and hypothermia can develop quickly. Travel could be very difficult to impossible. * WHAT...Snow. Additional snow accumulations up to 3 inches. Winds gusting as high as 40 mph. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80. * WHEN...Until midnight MST tonight. * IMPACTS...Areas of blowing snow could reduce visibility and lead to slick road conditions. Plan on slippery road conditions. * WHAT...Snow. Additional snow accumulations up to 3 inches. Winds gusting as high as 35 mph. * WHERE...Southwest Carbon County and Upper North Platte River Basin. * WHEN...Until midnight MST tonight. * IMPACTS...Plan on slippery road conditions. * WHAT...Snow. Additional snow accumulations between 3 and 6 inches. Winds gusting as high as 40 mph. * WHERE...Snowy Range. * WHEN...Until midnight MST tonight. * IMPACTS...Outdoor recreation could become dangerous to those caught unprepared for hazardous winter conditions. Hunters, hikers, and snowmobilers may become disoriented and lost due to low visibility in falling and blowing snow. Travel could be very difficult. Gusty winds could bring down tree branches.
December 27, 2025 at 7:45 PM
cys.nws-bot.us
CYS issues Area Forecast Discussion (AFD) at Dec 27, 10:20 AM MST
at Sat, 27 Dec 2025 17:20:24 +0000 via IEMbot
Additional Details Here.
December 27, 2025 at 5:27 PM
cys.nws-bot.us
CYS issues AN AREA OF SNOW SHOWERS WILL AFFECT SOUTHEASTERN ALBANY for Central Laramie Range and Southwest Platte County, Laramie Valley, Snowy Range, South Laramie Range, South La... at Sat, 27 Dec 2025 15:54:44 +0000 via IEMbot
Additional Details Here.
December 27, 2025 at 4:07 PM
cys.nws-bot.us
Special Weather Statement issued December 27 at 8:54AM MST by NWS Cheyenne WY
Additional Details Here.
At 853 AM MST...An area of snow showers was affecting portions of southeastern Albany...northwestern Laramie and southwestern Platte Counties. Periods of snow showers will persist through 945 AM MST. HAZARD...Sudden bursts of moderate to heavy snow. SOURCE...Radar and Webcams. IMPACT...Hazardous travel conditions due to slick roads and low visibilities. Locations impacted include... Laramie, West Laramie, Antelope Buttes, Nine Mile, Rogers Canyon, Boulder Ridge, Tie Siding, Pumpkin Vine, Vedauwoo Campground, North Crow Campground, Ames Monument, Horse Creek, Laramie Regional Airport, The Buttes, Hutton Lake, Yellow Pine Campground, Tie City Campground, Vedauwoo, Harmony, and University Of Wyoming War Memorial Stadium. This includes Interstate 80 in Wyoming between mile markers 301 and 334.
December 27, 2025 at 4:00 PM
cys.nws-bot.us
CYS issues Hazardous Weather Outlook (HWO) at Dec 27, 5:47 AM MST
at Sat, 27 Dec 2025 12:47:50 +0000 via IEMbot
Additional Details Here.
December 27, 2025 at 1:07 PM
cys.nws-bot.us
CYS issues Area Forecast Discussion (AFD) at Dec 27, 5:05 AM MST
at Sat, 27 Dec 2025 12:09:09 +0000 via IEMbot
Additional Details Here.
December 27, 2025 at 12:27 PM
cys.nws-bot.us
CYS issues Area Forecast Discussion (AFD) at Dec 27, 3:15 AM MST
at Sat, 27 Dec 2025 10:15:56 +0000 via IEMbot
Additional Details Here.
December 27, 2025 at 10:27 AM
cys.nws-bot.us
CYS continues Winter Storm Warning for Sierra Madre Range [WY] till Dec 28, 5:00 AM MST
at Sat, 27 Dec 2025 09:11:08 +0000 via IEMbot
Additional Details Here.
December 27, 2025 at 9:27 AM
cys.nws-bot.us
CYS continues Winter Weather Advisory for North Snowy Range Foothills [WY] till Dec 28, 12:00 AM MST
at Sat, 27 Dec 2025 09:11:08 +0000 via IEMbot
Additional Details Here.
December 27, 2025 at 9:27 AM
cys.nws-bot.us
🚨 Winter Storm Warning issued December 27 at 2:11AM MST until December 28 at 5:00AM MST by NWS Cheyenne WY 🚨
Additional Details Here.(1/2)
* WHAT...Heavy snow expected. Total snow accumulations between 12 and 18 inches with higher amounts possible on the peaks. Winds gusting as high as 45 mph. * WHERE...Sierra Madre Range. * WHEN...Until 5 AM MST Sunday. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Outdoor recreation could become life threatening to those caught unprepared for severe winter conditions. Hikers and snowmobilers may easily become disoriented. Frostbite and hypothermia can develop quickly. Travel could be very difficult to impossible. * WHAT...Snow expected. Total snow accumulations between 2 and 4 inches. Winds gusting as high as 50 mph. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80. * WHEN...Until midnight MST tonight. * IMPACTS...Areas of blowing snow could reduce visibility and lead to slick road conditions. Plan on slippery road conditions. * WHAT...Snow expected. Total snow accumulations between 2 and 5 inches. Winds gusting as high as 40 mph. * WHERE...Southwest Carbon County and Upper North Platte River Basin. * WHEN...Until midnight MST tonight. * IMPACTS...Plan on slippery road conditions. * WHAT...Snow expected. Total snow accumulations between 6 and 12 inches. Higher amounts will be possible on the peaks. Winds gusting as high as 55 mph. * WHERE...Snowy Range. * WHEN...Until midnight MST tonight. * IMPACTS...Outdoor recreation could become dangerous to those caught unprepared for hazardous winter conditions. Hunters, hikers, and snowmobilers may become disoriented and lost due to low visibility in falling and blowing snow. Travel could be very difficult. Gusty winds could bring down tree branches.
December 27, 2025 at 9:15 AM
cys.nws-bot.us
CYS issues Record Event Report (RER) at Dec 27, 1:26 AM MST ...RECORD HIGH TEMPERATURE SET AT SCOTTSBLUFF NE AIRPORT... via IEMbot
Additional Details Here.
December 27, 2025 at 8:47 AM