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
🚨 Winter Storm Warning issued December 5 at 12:20AM MST until December 7 at 5:00AM MST by NWS Cheyenne WY 🚨
Additional Details Here.
* WHAT...Heavy snow expected. Total snow accumulations between 1 and 2 feet. Higher amounts possible above 10000 feet. Winds gusting as high as 65 mph will lead to blowing snow and reduced visibility. * WHERE...Sierra Madre Range and Snowy Range. * WHEN...Until 5 AM MST Sunday. * IMPACTS...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. Widespread blowing snow could significantly reduce visibility and lead to dangerous travel conditions. Travel could be very difficult to impossible. Very strong winds could cause tree damage. * WHAT...Snow expected. Total snow accumulations between 4 and 8 inches. Highest accumulations are expected near the Snowy Range. Winds gusting as high as 70 mph. Strong winds will lead to blowing snow and reduced visibility. Visibility may be reduced below one mile at times. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80. * WHEN...From 5 AM early this morning to 5 PM MST Saturday. * IMPACTS...Areas of blowing snow could reduce visibility and lead to slick road conditions. Travel will be difficult.
December 5, 2025 at 7:30 AM
cys.nws-bot.us
CYS continues Winter Storm Warning for Sierra Madre Range, Snowy Range [WY] till Dec 7, 5:00 AM MST
at Fri, 05 Dec 2025 07:20:19 +0000 via IEMbot
Additional Details Here.
December 5, 2025 at 7:27 AM
cys.nws-bot.us
CYS issues Area Forecast Discussion (AFD) at Dec 4, 10:45 PM MST
at Fri, 05 Dec 2025 05:45:23 +0000 via IEMbot
Additional Details Here.
December 5, 2025 at 5:47 AM
cys.nws-bot.us
2 E Arlington [Carbon Co, WY] Mesonet reports Non-Tstm Wnd Gst of M63 MPH at 4 Dec, 9:32 PM MST -- Mesonet station WY23 1.6 E Arlington (WYDOT).
at Fri, 05 Dec 2025 04:44:05 +0000 via IEMbot
Additional Details Here.
December 5, 2025 at 4:47 AM
cys.nws-bot.us
11 SE Arlington [Albany Co, WY] Mesonet reports Non-Tstm Wnd Gst of M69 MPH at 4 Dec, 8:22 PM MST -- WYDOT Sensor at Strouss Hill. Sustained winds of 40 to 45 MPH.
at Fri, 05 Dec 2025 03:33:19 +0000 via IEMbot
Additional Details Here.
December 5, 2025 at 3:47 AM
cys.nws-bot.us
CYS issues BANDS OF MODERATE TO HEAVY SNOW AND STRONG GUSTY WINDS WILL CONTINUE THIS EVENING for North Snowy Range Foothills [WY] till 11:15 PM MST
at Fri, 05 Dec 2025 02:49:59 +0000 via IEMbot
Additional Details Here.
December 5, 2025 at 3:07 AM
cys.nws-bot.us
Special Weather Statement issued December 4 at 7:49PM MST by NWS Cheyenne WY
Additional Details Here.
Current radar loop shows a band of moderate to locally heavy snowfall impacting the Interstate 80 corridor between Laramie and Rawlins this evening. In addition, westerly winds continue to gust up to 65 MPH, producing periods of near zero visibility. Motorists are urged to use caution while traveling along Interstate 80 west of Laramie this evening and overnight. Although significant snow accumulations are not expected at this time, periods of blizzard conditions are possible near Arlington and Elk Mountain tonight.
December 5, 2025 at 3:00 AM
cys.nws-bot.us
11 SE Arlington [Albany Co, WY] Mesonet reports Non-Tstm Wnd Gst of M66 MPH at 4 Dec, 7:16 PM MST -- WYDOT Sensor at Strouss Hill.
at Fri, 05 Dec 2025 02:31:19 +0000 via IEMbot
Additional Details Here.
December 5, 2025 at 2:47 AM
cys.nws-bot.us
TORRINGTON WY AIRPORT Dec 4
Climate Report:
High: 43
Low: 7
Precip: 0.0"
Snow: Missing
at Fri, 05 Dec 2025 01:34:02 +0000 via IEMbot
Additional Details Here.
December 5, 2025 at 1:47 AM
cys.nws-bot.us
CHADRON NEBRASKA AIRPORT Dec 4
Climate Report:
High: 40
Low: 9
Precip: 0.0"
Snow: Missing
at Fri, 05 Dec 2025 01:34:02 +0000 via IEMbot
Additional Details Here.
December 5, 2025 at 1:47 AM
cys.nws-bot.us
CHEYENNE WYOMING AIRPORT Dec 4
Climate Report:
High: 33
Low: 6
Precip: 0.0"
Snow: 0.0" Snow Depth: 2"
at Fri, 05 Dec 2025 01:34:02 +0000 via IEMbot
Additional Details Here.
December 5, 2025 at 1:47 AM
cys.nws-bot.us
7 SW Federal [Laramie Co, WY] Mesonet reports Non-Tstm Wnd Gst of M59 MPH at 4 Dec, 5:12 PM MST -- Mesonet station WY48 7.4 SW Federal (WYDOT).
at Fri, 05 Dec 2025 00:54:44 +0000 via IEMbot
Additional Details Here.
December 5, 2025 at 1:07 AM
cys.nws-bot.us
1 SSE Bordeaux [Platte Co, WY] Mesonet reports Non-Tstm Wnd Gst of M61 MPH at 4 Dec, 4:52 PM MST -- Mesonet station KBRX 1.4 S Bordeaux (WYDOT).
at Fri, 05 Dec 2025 00:09:19 +0000 via IEMbot
Additional Details Here.
December 5, 2025 at 12:27 AM
cys.nws-bot.us
CYS issues Area Forecast Discussion (AFD) at Dec 4, 4:39 PM MST
at Thu, 04 Dec 2025 23:40:11 +0000 via IEMbot
Additional Details Here.
December 4, 2025 at 11:47 PM
cys.nws-bot.us
CYS issues Summary Local Storm Report
at Thu, 04 Dec 2025 23:46:49 +0000 via IEMbot
Additional Details Here.
December 4, 2025 at 11:47 PM
cys.nws-bot.us
7 NW Elk Mountain [Carbon Co, WY] Mesonet reports Non-Tstm Wnd Gst of M60 MPH at 2:02 PM MST -- Mesonet station WY18 Halleck Ridge (WYDOT).
at Thu, 04 Dec 2025 21:59:26 +0000 via IEMbot
Additional Details Here.
December 4, 2025 at 10:07 PM
cys.nws-bot.us
2 E Arlington [Carbon Co, WY] Mesonet reports Non-Tstm Wnd Gst of M62 MPH at 2:46 PM MST -- Mesonet station WY23 1.6 E Arlington (WYDOT).
at Thu, 04 Dec 2025 22:00:02 +0000 via IEMbot
Additional Details Here.
December 4, 2025 at 10:07 PM
cys.nws-bot.us
7 NW Elk Mountain [Carbon Co, WY] Mesonet reports Non-Tstm Wnd Gst of M60 MPH at 8:16 AM MST -- Mesonet station WY18 Halleck Ridge (WYDOT).
at Thu, 04 Dec 2025 21:36:02 +0000 via IEMbot
Additional Details Here.
December 4, 2025 at 9:47 PM
cys.nws-bot.us
CYS issues Area Forecast Discussion (AFD) at Dec 4, 1:36 PM MST
at Thu, 04 Dec 2025 20:37:11 +0000 via IEMbot
Additional Details Here.
December 4, 2025 at 8:47 PM
cys.nws-bot.us
CYS continues High Wind Warning (Central Laramie Range and Southwest Platte County, North Snowy Range Foothills, South Laramie Range [WY]) .
at Thu, 04 Dec 2025 19:56:24 +0000 via IEMbot
Additional Details Here.
December 4, 2025 at 8:07 PM
cys.nws-bot.us
🚨 High Wind Warning issued December 4 at 12:56PM MST until December 5 at 6:00AM MST by NWS Cheyenne WY 🚨
Additional Details Here.
* WHAT...West winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Bordeaux area along Interstate 25 between Chugwater and Wheatland. * WHEN...Until 6 AM MST Friday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight or high profile vehicles, including campers and tractor trailers. * ADDITIONAL DETAILS...A brief lull in the strong winds is possible Thursday afternoon before winds pick up again Thursday evening. * WHAT...West winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...South Laramie Range including the Interstate 80 Summit between Cheyenne and Laramie, and North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80. * WHEN...Until noon MST Friday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight or high profile vehicles, including campers and tractor trailers. In addition, areas of blowing snow could lead to reduced visibility and slick roads. * ADDITIONAL DETAILS...A brief lull in the strong winds is possible Thursday afternoon before winds pick up again Thursday evening.
December 4, 2025 at 8:00 PM
cys.nws-bot.us
🚨 Winter Storm Warning issued December 4 at 12:56PM MST until December 7 at 5:00AM MST by NWS Cheyenne WY 🚨
Additional Details Here.
* WHAT...Heavy snow expected. Total snow accumulations between 1 and 2 feet. Higher amounts possible above 10000 feet. Winds gusting as high as 65 mph will lead to blowing snow and reduced visibility. * WHERE...Sierra Madre Range and Snowy Range. * WHEN...From 11 PM this evening to 5 AM MST Sunday. * IMPACTS...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. Widespread blowing snow could significantly reduce visibility and lead to dangerous travel conditions. Travel could be very difficult to impossible. Very strong winds could cause tree damage.
December 4, 2025 at 8:00 PM
cys.nws-bot.us
CYS issues Area Forecast Discussion (AFD) at Dec 4, 10:30 AM MST
at Thu, 04 Dec 2025 17:30:52 +0000 via IEMbot
Additional Details Here.
December 4, 2025 at 5:47 PM
cys.nws-bot.us
CYS issues Area Forecast Discussion (AFD) at Dec 4, 4:36 AM MST
at Thu, 04 Dec 2025 11:36:35 +0000 via IEMbot
Additional Details Here.
December 4, 2025 at 11:47 AM
cys.nws-bot.us
CYS issues Area Forecast Discussion (AFD) at Dec 4, 3:01 AM MST
at Thu, 04 Dec 2025 10:01:51 +0000 via IEMbot
Additional Details Here.
December 4, 2025 at 10:07 AM