Alert archive / Wyoming / High Wind Watches in 2021
High Wind Watch 55, NWS Cheyenne, WY
NWS Cheyenne, WY issued this high wind watch at Dec 25, 2021, 3:55 AM MST for 4 counties in Wyoming. It took effect at Dec 26, 2021, 8:00 AM MST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 25, 2021, 3:55 AM MST (10:55 UTC)
- In effect from
- Dec 26, 2021, 8:00 AM MST
- Expired
- Dec 25, 2021, 1:04 PM MST
- In force
- Issued by
- NWS Cheyenne, WY
Counties Albany County, WY, Carbon County, WY, Laramie County, WY, Platte County, WY
The radar
The Cheyenne radar (KCYS), 88 km from the middle of the area, began a volume at 10:54 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.
The nearest sounding before it
Riverton, WY (KRIW), launched 00:00Z, 10.9 hours before the alert went out and 278 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
- 1764 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
393 WWUS75 KCYS 251055 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 355 AM MST Sat Dec 25 2021 WYZ106-252200- /O.NEW.KCYS.HW.A.0055.211226T1800Z-211227T1200Z/ /O.CON.KCYS.HW.W.0064.000000T0000Z-211225T1400Z/ Central Laramie Range and Southwest Platte County- Including the city of Bordeaux 355 AM MST Sat Dec 25 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 AM MST THIS MORNING... ...HIGH WIND WATCH IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... * WHAT...For the High Wind Warning, west winds 25 to 35 mph with gusts up to 60 mph. For the High Wind Watch, west winds 30 to 40 mph with gusts up to 70 mph possible. * WHERE...Central Laramie Range and Southwest Platte County. * WHEN...For the High Wind Warning, until 7 AM MST this morning. For the High Wind Watch, from Sunday morning through late Sunday night. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers at mile marker 71 on Interstate 25. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ WYZ110-252200- /O.NEW.KCYS.HW.A.0055.211226T1800Z-211227T1200Z/ /O.CON.KCYS.HW.W.0064.000000T0000Z-211225T1400Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 355 AM MST Sat Dec 25 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 AM MST THIS MORNING... ...HIGH WIND WATCH IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... * WHAT...For the High Wind Warning, west winds 30 to 40 mph with gusts up to 60 mph. For the High Wind Watch, west winds 30 to 40 mph with gusts up to 70 mph possible. * WHERE...North Snowy Range Foothills. * WHEN...For the High Wind Warning, until 7 AM MST this morning. For the High Wind Watch, from Sunday morning through late Sunday night. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers along Interstate 80 between Laramie and Rawlins. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ WYZ104-105-109-111-113-252200- /O.NEW.KCYS.HW.A.0055.211226T1500Z-211227T0600Z/ Ferris/Seminoe/Shirley Mountains-Shirley Basin- Central Carbon County-Southwest Carbon County- Upper North Platte River Basin- Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin, Rawlins, Baggs, Saratoga, and Encampment 355 AM MST Sat Dec 25 2021 ...HIGH WIND WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING... * WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph possible. * WHERE...Ferris/Seminoe/Shirley Mountains, Shirley Basin, Central Carbon County, Southwest Carbon County and Upper North Platte River Basin, including Rawlins, Saratoga, and Baggs. * WHEN...From Sunday morning through Sunday evening. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. && $$ WYZ107-115>118-252200- /O.NEW.KCYS.HW.A.0055.211226T1800Z-211227T1200Z/ East Platte County-Laramie Valley-South Laramie Range- South Laramie Range Foothills-Central Laramie County- Including the cities of Wheatland, Guernsey, Laramie, Bosler, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, Horse Creek, and Cheyenne 355 AM MST Sat Dec 25 2021 ...HIGH WIND WATCH IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph possible. * WHERE...East Platte County, Laramie Valley, South Laramie Range, South Laramie Range Foothills and Central Laramie County, including Cheyenne, Laramie, Wheatland, and Vedauwoo. * WHEN...From Sunday morning through late Sunday night. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. && $$ MN
2 follow-up statements
263 WWUS75 KCYS 251254 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 554 AM MST Sat Dec 25 2021 WYZ106-110-252100- /O.CAN.KCYS.HW.W.0064.000000T0000Z-211225T1400Z/ /O.CON.KCYS.HW.A.0055.211226T1800Z-211227T1200Z/ Central Laramie Range and Southwest Platte County- North Snowy Range Foothills- Including the cities of Bordeaux, Arlington, and Elk Mountain 554 AM MST Sat Dec 25 2021 ...HIGH WIND WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... ...HIGH WIND WARNING IS CANCELLED... * WHAT...Wind speeds have slackened to speeds of 25 to 35 mph this morning. That trend should continue through the remainder of the morning. However, strong west winds 30 to 40 mph with gusts up to 70 mph possible on Sunday. * WHERE...Central Laramie Range and Southwest Platte County and North Snowy Range Foothills. * WHEN...From Sunday morning through late Sunday night. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers at mile marker 71 on Interstate 25. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ WYZ104-105-109-111-113-252100- /O.CON.KCYS.HW.A.0055.211226T1500Z-211227T0600Z/ Ferris/Seminoe/Shirley Mountains-Shirley Basin- Central Carbon County-Southwest Carbon County- Upper North Platte River Basin- Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin, Rawlins, Baggs, Saratoga, and Encampment 554 AM MST Sat Dec 25 2021 ...HIGH WIND WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING... * WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph possible. * WHERE...Ferris/Seminoe/Shirley Mountains, Shirley Basin, Central Carbon County, Southwest Carbon County and Upper North Platte River Basin, including Rawlins, Saratoga, and Baggs. * WHEN...From Sunday morning through Sunday evening. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ WYZ107-115>118-252100- /O.CON.KCYS.HW.A.0055.211226T1800Z-211227T1200Z/ East Platte County-Laramie Valley-South Laramie Range- South Laramie Range Foothills-Central Laramie County- Including the cities of Wheatland, Guernsey, Laramie, Bosler, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, Horse Creek, and Cheyenne 554 AM MST Sat Dec 25 2021 ...HIGH WIND WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph possible. * WHERE...East Platte County, Laramie Valley, South Laramie Range, South Laramie Range Foothills and Central Laramie County, including Cheyenne, Laramie, Wheatland, and Vedauwoo. * WHEN...From Sunday morning through late Sunday night. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$
880 WWUS75 KCYS 252004 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 104 PM MST Sat Dec 25 2021 WYZ110-261200- /O.UPG.KCYS.HW.A.0055.211226T1800Z-211227T1200Z/ /O.NEW.KCYS.HW.W.0065.211226T1600Z-211227T1200Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 104 PM MST Sat Dec 25 2021 ...HIGH WIND WARNING IN EFFECT FROM 9 AM SUNDAY TO 5 AM MST MONDAY... * WHAT...West winds 40 to 50 mph with gusts up to 75 mph expected. Areas of blowing snow reducing visibility to one half mile or less at times. * WHERE...North Snowy Range Foothills. * WHEN...From 9 AM Sunday to 5 AM MST Monday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers between mile markers 240 and 290 on Interstate 80. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. People should avoid being outside in forested areas and around trees and branches. Use caution if you must drive. && $$ WYZ104-109-111-113-261200- /O.UPG.KCYS.HW.A.0055.211226T1500Z-211227T0600Z/ /O.NEW.KCYS.HW.W.0065.211226T1800Z-211227T0600Z/ Ferris/Seminoe/Shirley Mountains-Central Carbon County- Southwest Carbon County-Upper North Platte River Basin- Including the cities of Seminoe Dam, Rawlins, Baggs, Saratoga, and Encampment 104 PM MST Sat Dec 25 2021 ...HIGH WIND WARNING IN EFFECT FROM 11 AM TO 11 PM MST SUNDAY... * WHAT...West winds 35 to 45 mph with gusts up to 75 mph expected. * WHERE...Ferris/Seminoe/Shirley Mountains, Central Carbon County, Southwest Carbon County and Upper North Platte River Basin. Includes the towns of Rawlins...Saratoga...Baggs and Encampment. * WHEN...From 11 AM to 11 PM MST Sunday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. Patchy to areas of blowing snow from recent snowfall could reduce visibility to less than a half mile at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. People should avoid being outside in forested areas and around trees and branches. Use caution if you must drive. && $$ WYZ105-261200- /O.UPG.KCYS.HW.A.0055.211226T1500Z-211227T0600Z/ /O.NEW.KCYS.HW.W.0065.211226T2100Z-211227T1200Z/ Shirley Basin- Including the cities of Medicine Bow and Shirley Basin 104 PM MST Sat Dec 25 2021 ...HIGH WIND WARNING IN EFFECT FROM 2 PM SUNDAY TO 5 AM MST MONDAY... * WHAT...West winds 35 to 45 mph with gusts up to 70 mph expected. * WHERE...Shirley Basin. Includes the towns of Medicine Bow and Shirley Basin. * WHEN...From 2 PM Sunday to 5 AM MST Monday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. People should avoid being outside in forested areas and around trees and branches. Use caution if you must drive. && $$ WYZ106-107-115>118-261200- /O.UPG.KCYS.HW.A.0055.211226T1800Z-211227T1200Z/ /O.NEW.KCYS.HW.W.0065.211226T2100Z-211227T1200Z/ Central Laramie Range and Southwest Platte County- East Platte County-Laramie Valley-South Laramie Range- South Laramie Range Foothills-Central Laramie County- Including the cities of Bordeaux, Wheatland, Guernsey, Laramie, Bosler, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, Horse Creek, and Cheyenne 104 PM MST Sat Dec 25 2021 ...HIGH WIND WARNING IN EFFECT FROM 2 PM SUNDAY TO 5 AM MST MONDAY... * WHAT...West winds 35 to 45 mph with gusts up to 75 mph expected. * WHERE...Central Laramie Range and Southwest Platte County, East Platte County, Laramie Valley, South Laramie Range, South Laramie Range Foothills and Central Laramie County. Includes Cheyenne...Wheatland...Laramie...Horse Creek and Guernsey. * WHEN...From 2 PM Sunday to 5 AM MST Monday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles...including semis and camper trailers. Patchy to areas of blowing snow from recent snowfall may reduce visibility to under a half mile at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. People should avoid being outside in forested areas and around trees and branches. Use caution if you must drive. && $$ WYZ101-103-261200- /O.NEW.KCYS.HW.W.0065.211226T2100Z-211227T1200Z/ Converse County Lower Elevations-North Laramie Range- Including the cities of Douglas, Glenrock, Bill, Deer Creek, Garrett, and Esterbrook 104 PM MST Sat Dec 25 2021 ...HIGH WIND WARNING IN EFFECT FROM 2 PM SUNDAY TO 5 AM MST MONDAY... * WHAT...West winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Converse County Lower Elevations and North Laramie Range. * WHEN...From 2 PM Sunday to 5 AM MST Monday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles...including semis and camper trailers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. People should avoid being outside in forested areas and around trees and branches. Use caution if you must drive. && $$ NEZ003-019>021-054-055-096-WYZ102-108-119-261200- /O.NEW.KCYS.HW.A.0056.211227T0000Z-211227T1200Z/ Box Butte County-Scotts Bluff County-Banner County-Morrill County- Kimball County-Cheyenne County-Southern Sioux County- Niobrara County-Goshen County-East Laramie County- Including the cities of Alliance, Hemingford, Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, Redington, Kimball, Sidney, Brownson, Agate, Lusk, Redbird, Torrington, and Pine Bluffs 104 PM MST Sat Dec 25 2021 ...HIGH WIND WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY NIGHT... * WHAT...West winds 30 to 40 mph with gusts up to 65 mph possible. * WHERE...In Wyoming, Niobrara County, Goshen County and East Laramie County. In Nebraska, Box Butte County, Scotts Bluff County, Banner County, Morrill County, Kimball County, Cheyenne County and Southern Sioux County. * WHEN...From Sunday afternoon through late Sunday night. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 25, 2:42 AM MST | Winter Weather Advisory | CYS | Albany, Laramie | 8 hr |
| Dec 25, 3:54 AM MST | Winter Storm Watch | CYS | Albany, Carbon | 9 hr |
| Dec 25, 12:50 PM MST | Winter Storm Warning | CYS | Albany, Carbon | 67 hr |
| Dec 25, 1:04 PM MST | High Wind Watch | CYS | Goshen, Laramie, Niobrara | 15 hr |
| Dec 25, 1:04 PM MST | High Wind Warning | CYS | Albany, Carbon, Converse, Goshen, Laramie, Niobrara and 1 more | 39 hr |
Nearby
High Wind Watches in Wyoming, 2021Every high wind watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.