Alert archive / Wyoming / Winter Storm Warnings in 2021
Winter Storm Warning 21, NWS Cheyenne, WY
NWS Cheyenne, WY issued this winter storm warning at Dec 29, 2021, 2:17 AM MST for Albany County, Carbon County, Wyoming. It took effect at Dec 29, 2021, 11:00 PM MST. It was in force for 51 hr. 14 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 29, 2021, 2:17 AM MST (09:17 UTC)
- In effect from
- Dec 29, 2021, 11:00 PM MST
- Expired
- Jan 1, 2022, 2:13 AM MST
- In force
- 51 hr
- Issued by
- NWS Cheyenne, WY
Counties Albany County, WY, Carbon County, WY
The radar
The Cheyenne radar (KCYS), 140 km from the middle of the area, began a volume at 09:21 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 31, 11:00 PM MST | HEAVY SNOW 12 | 1 Nnw Battle Creek Camp, WY | SANDSTONE RANGER STATION SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8150 FEET. SNOW WATER EQUIVALENT IS 0.8 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 48 HOURS. |
| Dec 31, 11:00 PM MST | HEAVY SNOW 12 | 7 Wsw Battle Creek Camp, WY | BATTLE MOUNTAIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 7440 FEET. SNOW WATER EQUIVALENT IS 0.8 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 48 HOURS. |
| Dec 31, 11:00 PM MST | HEAVY SNOW 12 | Nw Ryan Park Campground, WY | SOUTH BRUSH CREEK SNOTEL IN THE SNOWY RANGE. ELEVATION 8440 FEET. SNOW WATER EQUIVALENT IS 0.8 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 48 HOURS. |
| Dec 31, 11:00 PM MST | HEAVY SNOW 16.5 | 2 Nw Jack Creek Campgro, WY | DIVIDE PEAK SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8880 FEET. SNOW WATER EQUIVALENT IS 1.1 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 48 HOURS. 12 INCHES REACHED AT 12 AM 12/31. |
| Dec 31, 11:00 PM MST | HEAVY SNOW 18 | 2 Ne Rob Roy Reservoir, WY | CINNABAR PARK SNOTEL IN THE SNOWY RANGE. ELEVATION 9574 FEET. SNOW WATER EQUIVALENT IS 0.9 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 48 HOURS. 12 INCHES REACHED AT 1 AM 12/31. |
| Dec 31, 11:00 PM MST | HEAVY SNOW 20 | Ene Nash Fork Campgroun, WY | BROOKLYN LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10240 FEET. SNOW WATER EQUIVALENT IS 1.0 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 48 HOURS. 12 INCHES REACHED AT 12 AM 12/31. |
| Dec 31, 11:00 PM MST | HEAVY SNOW 21.6 | 4 Nw Hog Park Reservoir, WY | LITTLE SNAKE RIVER SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8915 FEET. SNOW WATER EQUIVALENT IS 1.2 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 18 TO 1. ACCUMULATION WAS OVER PAST 48 HOURS. 12 INCHES REACHED AT 4 AM 12/31. |
| Dec 31, 11:00 PM MST | HEAVY SNOW 22 | 5 Wsw Sugar Loaf Campgr, WY | NORTH FRENCH CREEK SNOTEL IN THE SNOWY RANGE. ELEVATION 10130 FEET. SNOW WATER EQUIVALENT IS 1.1 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 48 HOURS. 12 INCHES REACHED AT 2 AM 12/31. |
| Dec 31, 11:00 PM MST | HEAVY SNOW 22 | W Deep Creek Campground, WY | SAND LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10050 FEET. SNOW WATER EQUIVALENT IS 1.1 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 48 HOURS. 12 INCHES REACHED AT 1 AM 12/31. |
| Dec 31, 11:00 PM MST | HEAVY SNOW 23.4 | 1 Nw Whiskey Park, WY | WHISKEY PARK SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8950 FEET. SNOW WATER EQUIVALENT IS 1.3 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 18 TO 1. ACCUMULATION WAS OVER PAST 48 HOURS. 12 INCHES REACHED AT 3 AM 12/31. |
| Dec 31, 11:00 PM MST | HEAVY SNOW 28 | 2 Wsw Bottle Creek Camp, WY | WEBBER SPRINGS SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9250 FEET. SNOW WATER EQUIVALENT IS 1.4 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 48 HOURS. 12 INCHES REACHED AT 11 PM 12/30. |
| Dec 31, 11:00 PM MST | HEAVY SNOW 30 | 2 E Battle Lake, WY | OLD BATTLE SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 10000 FEET. SNOW WATER EQUIVALENT IS 1.5 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 48 HOURS. 12 INCHES REACHED AT 11 PM 12/30. |
| Dec 31, 11:00 PM MST | HEAVY SNOW 30 | 3 Wnw Sugar Loaf Campgr, WY | MEDICINE BOW SNOTEL IN THE SNOWY RANGE. ELEVATION 10500 FEET. SNOW WATER EQUIVALENT IS 1.5 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 48 HOURS. 12 INCHES REACHED AT 12 AM 12/31. |
| Dec 31, 11:00 PM MST | HEAVY SNOW 30 | 6 Wsw Battle Creek Camp, WY | BLACKHALL MOUNTAIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9820 FEET. SNOW WATER EQUIVALENT IS 1.5 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 48 HOURS. 12 INCHES REACHED AT 12 PM 12/30. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Riverton, WY (KRIW), launched 00:00Z, 9.3 hours before the alert went out and 230 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1781 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- -51 m²/s²
- 0-3 km storm-relative helicity
- 31 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
198 WWUS45 KCYS 290917 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 217 AM MST Wed Dec 29 2021 WYZ112-114-292300- /O.UPG.KCYS.WS.A.0016.211230T0600Z-220101T0000Z/ /O.NEW.KCYS.WS.W.0021.211230T0600Z-220101T1200Z/ Sierra Madre Range-Snowy Range- Including the cities of Centennial and Albany 217 AM MST Wed Dec 29 2021 ...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 AM MST SATURDAY... * WHAT...Heavy snow expected. Total snow accumulations of 10 to 30 inches with the higher amounts expected above 9000 feet. Winds gusting as high as 40 to 60 mph, especially on Thursday, in exposed areas. * WHERE...Sierra Madres and Snowy Mountain Ranges * WHEN...From 11 PM this evening to 5 AM MST Saturday. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. Hikers and snow mobilers likely to become disoriented and lost with very poor visibility in heavy snow and blowing snow. The dangerously cold wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 10 minutes. * ADDITIONAL DETAILS...An extended period of light to moderate snow is expected tonight through Saturday morning. Highest snowfall rates and heaviest snowfall will occur late Thursday through Friday. Snow will tapper off Saturday morning. 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. && $$
6 follow-up statements
790 WWUS45 KCYS 292113 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 213 PM MST Wed Dec 29 2021 WYZ112-114-301200- /O.CON.KCYS.WS.W.0021.211230T0600Z-220101T1200Z/ Sierra Madre Range-Snowy Range- Including the cities of Centennial and Albany 213 PM MST Wed Dec 29 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 AM MST SATURDAY... * WHAT...Heavy snow expected. Total snow accumulations of 1 to 2 feet with locally higher amounts near 30 inches possible over the high peaks. Winds gusting as high as 60 MPH in exposed areas. * WHERE...Snowy and Sierra Madre Mountain Ranges. The heaviest snow is expected in the Sierra Madres. * WHEN...11 PM MST this evening until 5 AM MST Saturday. * IMPACTS...Mountain travel could be extremely difficult or impossible due to icy, snow packed roads and near zero visibilities in falling and blowing snow. Outdoor recreation could become life threatening to those caught unprepared for severe winter conditions. Hikers and snowmobilers may easily become disoriented. Frostbite and hypothermia can develop quickly. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ CLH
057 WWUS45 KCYS 301020 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 320 AM MST Thu Dec 30 2021 WYZ112-114-301830- /O.CON.KCYS.WS.W.0021.000000T0000Z-220101T1200Z/ Sierra Madre Range-Snowy Range- Including the cities of Centennial and Albany 320 AM MST Thu Dec 30 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SATURDAY... * WHAT...Heavy snow expected. Total snow accumulations of 1 to 2 feet with locally higher amounts near 30 inches possible over the high peaks. Winds gusting as high as 60 MPH in exposed areas. * WHERE...Snowy and Sierra Madre Mountain Ranges. The heaviest snow is expected in the Sierra Madres. * WHEN...11 PM MST this evening until 5 AM MST Saturday. * IMPACTS...Mountain travel could be extremely difficult or impossible due to icy, snow packed roads and near zero visibilities in 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. 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. && $$
439 WWUS45 KCYS 302110 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 210 PM MST Thu Dec 30 2021 WYZ112-114-311200- /O.CON.KCYS.WS.W.0021.000000T0000Z-220101T1200Z/ Sierra Madre Range-Snowy Range- Including the cities of Centennial and Albany 210 PM MST Thu Dec 30 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SATURDAY... * WHAT...Heavy snow and blowing snow expected. Total snow accumulations of 1 to 2 feet with locally higher amounts near 30 inches possible over the high peaks. Winds gusting as high as 60 MPH in exposed areas. * WHERE...Snowy and Sierra Madre Mountain Ranges. The heaviest snow is expected in the Sierra Madres. * WHEN...Until 5 AM MST Saturday. * IMPACTS...Mountain travel could be extremely difficult or impossible due to icy, snow packed roads and near zero visibilities in falling and blowing snow. Outdoor recreation could become life threatening to those caught unprepared for severe winter conditions. Hikers and snowmobilers may easily become disoriented. Frostbite and hypothermia can develop quickly. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ109-111-311200- /O.NEW.KCYS.WW.Y.0044.211231T0000Z-211231T1800Z/ Central Carbon County-Southwest Carbon County- Including the cities of Rawlins and Baggs 210 PM MST Thu Dec 30 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST FRIDAY... * WHAT...Snow expected. Total snow accumulations generally ranging from 1 to 2 inches, with local amounts up to 4 inches possible. * WHERE...Western Carbon County including Rawlins and Baggs. * WHEN...5 PM MST this afternoon until 11 AM MST Friday. * IMPACTS...Hazardous travel conditions due to icy, snow covered roads and reduced visibilities in falling and blowing snow. 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. && $$ WYZ110-113-115-311200- /O.NEW.KCYS.WW.Y.0044.211231T0300Z-220101T1200Z/ North Snowy Range Foothills-Upper North Platte River Basin- Laramie Valley- Including the cities of Arlington, Elk Mountain, Saratoga, Encampment, Laramie, and Bosler 210 PM MST Thu Dec 30 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 5 AM MST SATURDAY... * WHAT...Snow expected. Total snow accumulations generally ranging from 1 to 2 inches, with local amounts of 3 to 6 inches possible. Dangerously cold wind chills as low as minus 20 expected late Friday night and early Saturday. * WHERE...southern Carbon and Albany counties including Arlington, Elk Mountain, Saratoga, and Laramie. The heaviest snow is likely to fall over the north Snowy Range foothills near Arlington and the Saratoga Valley. * WHEN...8 PM MST this evening until 5 AM MST Saturday. * IMPACTS...Hazardous travel conditions due to icy, snow covered roads and reduced visibilities in falling and blowing snow. Dangerously cold wind chills may lead to frost bite or hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ116-117-311200- /O.NEW.KCYS.WW.Y.0044.211231T1000Z-220101T1200Z/ South Laramie Range-South Laramie Range Foothills- Including the cities of Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 210 PM MST Thu Dec 30 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM FRIDAY TO 5 AM MST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 4 inches possible. Dangerously cold wind chills as low as minus 20 expected late Friday night and early Saturday. * WHERE...Southern Laramie Range and adjacent foothills including Interstate 80 between Laramie and Cheyenne. The heaviest snow is expected to fall above 7500 feet over the southern Laramie Range. * WHEN...3 AM Friday until 5 AM MST Saturday. Some snow will fall late tonight and early Friday with the main period of heavier snow occurring Friday night into early Saturday. * IMPACTS...Hazardous travel conditions due to icy, snow covered roads and reduced visibilities in falling and blowing snow. Dangerously cold wind chills may lead to frost bite or hypothermia if precautions are not taken. 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. && $$ CLH
709 WWUS45 KCYS 311035 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 335 AM MST Fri Dec 31 2021 WYZ112-114-312200- /O.CON.KCYS.WS.W.0021.000000T0000Z-220101T1200Z/ Sierra Madre Range-Snowy Range- Including the cities of Centennial and Albany 335 AM MST Fri Dec 31 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SATURDAY... * WHAT...Heavy snow and blowing snow expected. Total snow accumulations of 1 to 2 feet with locally higher amounts near 30 inches possible over the high peaks. Winds gusting as high as 60 MPH in exposed areas. * WHERE...Snowy and Sierra Madre Mountain Ranges. The heaviest snow is expected in the Sierra Madres. * WHEN...Until 5 AM MST Saturday. * IMPACTS...Mountain travel could be extremely difficult or impossible due to icy, snow packed roads and near zero visibilities in falling and blowing snow. Outdoor recreation could become life threatening to those caught unprepared for severe winter conditions. Hikers and snowmobilers may easily become disoriented. Frostbite and hypothermia can develop quickly. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NEZ002-003-095-096-WYZ102-312200- /O.NEW.KCYS.WC.Y.0005.220101T0000Z-220101T1800Z/ Dawes County-Box Butte County-Northern Sioux County- Southern Sioux County-Niobrara County- Including the cities of Chadron, Chadron St Park, Alliance, Hemingford, Harrison, Agate, Lusk, and Redbird 335 AM MST Fri Dec 31 2021 ...WIND CHILL ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST SATURDAY... * WHAT...Very cold wind chills expected. Wind chills as low as 25 below zero. * WHERE...Niobrara County, Wyoming including Lusk. The northern Nebraska Panhandle including Chadron, Alliance, and Harrison. * WHEN...From 5 PM this afternoon to 11 AM MST Saturday. * IMPACTS...The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... A wind chill advisory means that the combination of wind and cold temperatures will create dangerously low wind chill values. Wear appropriate clothing outside if outside. Cover all parts of your body, especially your head, face, and hands. && $$ WYZ118-312200- /O.EXB.KCYS.WW.Y.0044.211231T2100Z-220101T1800Z/ Central Laramie County- Including the city of Cheyenne 335 AM MST Fri Dec 31 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 AM MST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 5 inches. Very cold temperatures producing wind chills as low as minus 15 are expected Friday night and early Saturday. * WHERE...Central Laramie County, including Cheyenne. * WHEN...From 2 PM this afternoon to 11 AM MST Saturday. * IMPACTS...Hazardous travel conditions due to icy, snow covered roads and reduced visibilities in falling and blowing snow. Dangerously cold wind chills may lead to frost bite or hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NEZ054-055-WYZ119-312200- /O.EXB.KCYS.WW.Y.0044.220101T0000Z-220101T1800Z/ Kimball County-Cheyenne County-East Laramie County- Including the cities of Kimball, Sidney, Brownson, and Pine Bluffs 335 AM MST Fri Dec 31 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 4 inches. Dangerously cold wind chills as low as minus 20 are expected Friday night and early Saturday. * WHERE...Eastern Laramie County, Wyoming, including Pine Bluffs. The southern Nebraska Panhandle including Kimball and Sidney. * WHEN...From 5 PM this afternoon to 11 AM MST Saturday. * IMPACTS...Hazardous travel conditions due to icy, snow covered roads and reduced visibilities in falling and blowing snow. Dangerously cold wind chills may lead to frost bite or hypothermia if precautions are not taken. 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. && $$ WYZ109-111-311800- /O.CON.KCYS.WW.Y.0044.000000T0000Z-211231T1800Z/ Central Carbon County-Southwest Carbon County- Including the cities of Rawlins and Baggs 335 AM MST Fri Dec 31 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * WHAT...Snow expected. Total snow accumulations generally ranging from 1 to 2 inches, with local amounts up to 4 inches possible. * WHERE...Western Carbon County including Rawlins and Baggs. * WHEN...5 PM MST this afternoon until 11 AM MST Friday. * IMPACTS...Hazardous travel conditions due to icy, snow covered roads and reduced visibilities in falling and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ110-113-115-312200- /O.CON.KCYS.WW.Y.0044.000000T0000Z-220101T1200Z/ North Snowy Range Foothills-Upper North Platte River Basin- Laramie Valley- Including the cities of Arlington, Elk Mountain, Saratoga, Encampment, Laramie, and Bosler 335 AM MST Fri Dec 31 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SATURDAY... * WHAT...Snow expected. Total snow accumulations generally ranging from 1 to 3 inches, with local amounts of 3 to 6 inches possible. Dangerously cold wind chills as low as minus 20 expected late Friday night and early Saturday. * WHERE...Southern Carbon and Albany counties including Arlington, Elk Mountain, Saratoga, and Laramie. The heaviest snow is likely to fall over the north Snowy Range foothills near Arlington and the Saratoga Valley. * WHEN...8 PM MST this evening until 5 AM MST Saturday. * IMPACTS...Hazardous travel conditions due to icy, snow covered roads and reduced visibilities in falling and blowing snow. Dangerously cold wind chills may lead to frost bite or hypothermia if precautions are not taken. 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. && $$ WYZ116-117-312200- /O.CON.KCYS.WW.Y.0044.000000T0000Z-220101T1200Z/ South Laramie Range-South Laramie Range Foothills- Including the cities of Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 335 AM MST Fri Dec 31 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 6 inches possible. Dangerously cold wind chills as low as minus 20 expected late Friday night and early Saturday. * WHERE...Southern Laramie Range and adjacent foothills including Interstate 80 between Laramie and Cheyenne. The heaviest snow is expected to fall above 7500 feet over the southern Laramie Range. * WHEN...3 AM Friday until 5 AM MST Saturday. Some snow will fall early Friday with the main period of heavier snow occurring Friday night into early Saturday. * IMPACTS...Hazardous travel conditions due to icy, snow covered roads and reduced visibilities in falling and blowing snow. Dangerously cold wind chills may lead to frost bite or hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
574 WWUS45 KCYS 312018 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 118 PM MST Fri Dec 31 2021 WYZ112-114-011115- /O.CON.KCYS.WS.W.0021.000000T0000Z-220101T1200Z/ Sierra Madre Range-Snowy Range- Including the cities of Centennial and Albany 118 PM MST Fri Dec 31 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SATURDAY... * WHAT...After a brief lull today, heavy snow and blowing snow expected to redevelop this evening. Total snow accumulations of 1 to 2 feet with locally higher amounts near 30 inches possible over the high peaks. Winds gusting as high as 60 MPH in exposed areas. * WHERE...Snowy and Sierra Madre Mountain Ranges. The heaviest snow is expected in the Sierra Madres. * WHEN...Until 5 AM MST Saturday. * IMPACTS...Mountain travel could be extremely difficult or impossible due to icy, snow packed roads and near zero visibilities in 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. 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. && $$ WYZ106-011115- /O.EXA.KCYS.WW.Y.0044.000000T0000Z-220101T1200Z/ Central Laramie Range and Southwest Platte County- Including the city of Bordeaux 118 PM MST Fri Dec 31 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 AM MST SATURDAY... * WHAT...Light Snow. Snow accumulations of 2 to 4 inches near the Laramie Range, with 1 to 2 inches further north near Wheatland. * WHERE...Southwest Platte County and the central Laramie Range. * WHEN...8 PM MST this evening until 5 AM MST Saturday. * IMPACTS...Hazardous travel conditions due to icy, snow covered roads and reduced visibilities in falling snow. Dangerously cold wind chills may lead to frost bite or hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ118-011115- /O.CON.KCYS.WW.Y.0044.211231T2100Z-220101T1800Z/ Central Laramie County- Including the city of Cheyenne 118 PM MST Fri Dec 31 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 5 inches. Very cold temperatures producing wind chills as low as minus 15 are expected Friday night and early Saturday. * WHERE...Central Laramie County, including Cheyenne. * WHEN...From 2 PM this afternoon to 11 AM MST Saturday. * IMPACTS...Hazardous travel conditions due to icy, snow covered roads and reduced visibilities in falling and blowing snow. Dangerously cold wind chills may lead to frost bite or hypothermia if precautions are not taken. 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. && $$ NEZ054-055-WYZ119-011115- /O.CON.KCYS.WW.Y.0044.220101T0000Z-220101T1800Z/ Kimball County-Cheyenne County-East Laramie County- Including the cities of Kimball, Sidney, Brownson, and Pine Bluffs 118 PM MST Fri Dec 31 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 4 inches. Dangerously cold wind chills as low as minus 20 are expected Friday night and early Saturday. * WHERE...Eastern Laramie County, Wyoming, including Pine Bluffs. The southern Nebraska Panhandle including Kimball and Sidney. * WHEN...From 5 PM this afternoon to 11 AM MST Saturday. * IMPACTS...Hazardous travel conditions due to icy, snow covered roads and reduced visibilities in falling and blowing snow. Dangerously cold wind chills may lead to frost bite or hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ110-113-115-011115- /O.CON.KCYS.WW.Y.0044.000000T0000Z-220101T1200Z/ North Snowy Range Foothills-Upper North Platte River Basin- Laramie Valley- Including the cities of Arlington, Elk Mountain, Saratoga, Encampment, Laramie, and Bosler 118 PM MST Fri Dec 31 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SATURDAY... * WHAT...Snow expected. Total snow accumulations generally ranging from 1 to 3 inches, with local amounts of 3 to 6 inches possible near the Snowy Range. Dangerously cold wind chills as low as minus 20 expected late Friday night and early Saturday. * WHERE...Southern Carbon and Albany counties including Arlington, Elk Mountain, Saratoga, and Laramie. The heaviest snow is likely to fall over the north Snowy Range foothills near Arlington and the Saratoga Valley. * WHEN...8 PM MST this evening until 5 AM MST Saturday. * IMPACTS...Hazardous travel conditions due to icy, snow covered roads and reduced visibilities in falling and blowing snow. Dangerously cold wind chills may lead to frost bite or hypothermia if precautions are not taken. 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. && $$ WYZ116-117-011115- /O.CON.KCYS.WW.Y.0044.000000T0000Z-220101T1200Z/ South Laramie Range-South Laramie Range Foothills- Including the cities of Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 118 PM MST Fri Dec 31 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 7 inches possible. Dangerously cold wind chills as low as minus 20 expected late Friday night and early Saturday. * WHERE...Southern Laramie Range and adjacent foothills including Interstate 80 between Laramie and Cheyenne. The heaviest snow is expected to fall above 7500 feet over the southern Laramie Range. * WHEN...Until 5 AM MST Saturday. Some snow will fall early Friday with the main period of heavier snow occurring Friday night into early Saturday. * IMPACTS...Hazardous travel conditions due to icy, snow covered roads and reduced visibilities in falling and blowing snow. Dangerously cold wind chills may lead to frost bite or hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NEZ002-003-095-096-WYZ102-011115- /O.CON.KCYS.WC.Y.0005.220101T0000Z-220101T1800Z/ Dawes County-Box Butte County-Northern Sioux County- Southern Sioux County-Niobrara County- Including the cities of Chadron, Chadron St Park, Alliance, Hemingford, Harrison, Agate, Lusk, and Redbird 118 PM MST Fri Dec 31 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST SATURDAY... * WHAT...Very cold wind chills expected. Wind chills as low as 25 below zero. * WHERE...Niobrara County, Wyoming including Lusk. The northern Nebraska Panhandle including Chadron, Alliance, and Harrison. * WHEN...From 5 PM this afternoon to 11 AM MST Saturday. * IMPACTS...The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$
435 WWUS45 KCYS 010913 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 213 AM MST Sat Jan 1 2022 WYZ112-114-011015- /O.CAN.KCYS.WS.W.0021.000000T0000Z-220101T1200Z/ Sierra Madre Range-Snowy Range- Including the cities of Centennial and Albany 213 AM MST Sat Jan 1 2022 ...WINTER STORM WARNING IS CANCELLED... Widespread snow has ended and significant accumulations are no longer expected. Therefore...the Winter Storm Warning has been cancelled. $$ WYZ106-110-115>117-011715- /O.CAN.KCYS.WW.Y.0044.000000T0000Z-220101T1200Z/ /O.NEW.KCYS.WW.Y.0001.220101T2100Z-220103T0600Z/ Central Laramie Range and Southwest Platte County- North Snowy Range Foothills-Laramie Valley-South Laramie Range- South Laramie Range Foothills- Including the cities of Bordeaux, Arlington, Elk Mountain, Laramie, Bosler, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 213 AM MST Sat Jan 1 2022 ...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 PM MST SUNDAY... ...WINTER WEATHER ADVISORY IS CANCELLED... * WHAT...Blowing snow expected. Visibility down to under a half mile at times. Winds gusting as high as 75 mph in wind prone areas. Gusts to 40 mph in the Laramie Valley to include Laramie. * WHERE...Wind prone areas of southeast Wyoming to include Arlington...the Interstate 80 Summit and eastern foothills...as well as Bordeaux on Interstate 25. * WHEN...From 2 PM this afternoon to 11 PM MST Sunday. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. Very strong winds could cause extensive tree damage. The dangerously cold wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling, especially in open areas. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ118-011715- /O.CAN.KCYS.WW.Y.0044.000000T0000Z-220101T1800Z/ /O.NEW.KCYS.WW.Y.0001.220101T2100Z-220103T0600Z/ Central Laramie County- Including the city of Cheyenne 213 AM MST Sat Jan 1 2022 ...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 PM MST SUNDAY... ...WINTER WEATHER ADVISORY IS CANCELLED... * WHAT...Blowing snow expected. Winds gusting as high as 45 mph. * WHERE...Central Laramie County to include Cheyenne. * WHEN...From 2 PM this afternoon to 11 PM MST Sunday. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling, especially in open areas. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NEZ054-055-WYZ119-011015- /O.CAN.KCYS.WW.Y.0044.000000T0000Z-220101T1800Z/ Kimball County-Cheyenne County-East Laramie County- Including the cities of Kimball, Sidney, Brownson, and Pine Bluffs 213 AM MST Sat Jan 1 2022 ...WINTER WEATHER ADVISORY IS CANCELLED... Light snow will continue this morning...but significant accumulations are no longer expected. Therefore...the Winter Weather Advisory has been cancelled early. $$ WYZ113-011015- /O.CAN.KCYS.WW.Y.0044.000000T0000Z-220101T1200Z/ Upper North Platte River Basin- Including the cities of Saratoga and Encampment 213 AM MST Sat Jan 1 2022 ...WINTER WEATHER ADVISORY IS CANCELLED... Light snow will continue this morning...but significant accumulations are no longer expected. Therefore...the Winter Weather Advisory has been cancelled early. $$ NEZ002-003-095-096-WYZ102-011715- /O.CON.KCYS.WC.Y.0005.000000T0000Z-220101T1800Z/ Dawes County-Box Butte County-Northern Sioux County- Southern Sioux County-Niobrara County- Including the cities of Chadron, Chadron St Park, Alliance, Hemingford, Harrison, Agate, Lusk, and Redbird 213 AM MST Sat Jan 1 2022 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * WHAT...Very cold wind chills expected. Wind chills as low as 25 below zero. * WHERE...Niobrara County, Wyoming including Lusk. The northern Nebraska Panhandle including Chadron, Alliance, and Harrison. * WHEN...Through 11 AM MST this morning. * IMPACTS...The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 29, 2:25 AM MST | High Wind Warning | CYS | Albany, Carbon, Converse, Goshen, Laramie, Platte | 45 hr |
Nearby
Winter Storm Warnings in Wyoming, 2021Every winter storm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.