Alert archive / Wyoming / High Wind Watches in 2021
High Wind Watch 57, NWS Cheyenne, WY
NWS Cheyenne, WY issued this high wind watch at Dec 28, 2021, 1:25 PM MST for 5 counties in Wyoming. It took effect at Dec 29, 2021, 5:00 PM MST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 28, 2021, 1:25 PM MST (20:25 UTC)
- In effect from
- Dec 29, 2021, 5:00 PM MST
- Expired
- Dec 29, 2021, 2:08 PM MST
- In force
- Issued by
- NWS Cheyenne, WY
Counties Albany County, WY, Carbon County, WY, Converse County, WY, Laramie County, WY, Platte County, WY
The radar
The Cheyenne radar (KCYS), 109 km from the middle of the area, began a volume at 20:25 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 12:00Z, 8.4 hours before the alert went out and 264 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
- 1865 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 225 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
899 WWUS75 KCYS 282025 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 125 PM MST Tue Dec 28 2021 WYZ110-291200- /O.NEW.KCYS.HW.A.0057.211230T0000Z-211231T0600Z/ /O.EXT.KCYS.HW.W.0066.000000T0000Z-211229T0000Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 125 PM MST Tue Dec 28 2021 ...HIGH WIND WARNING NOW IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... ...HIGH WIND WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY EVENING... * WHAT...For the High Wind Warning, west winds 20 to 30 mph with gusts up to 60 mph. For the High Wind Watch, west winds 40 to 50 mph with gusts up to 75 mph possible. * WHERE...North Snowy Range Foothills. * WHEN...For the High Wind Warning, until 5 PM MST this afternoon. For the High Wind Watch, from Wednesday afternoon through Thursday evening. * 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. Patchy to areas of blowing snow from recent snowfall could reduce visibility to less than a half mile at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WYZ104>107-109-113-115>117-291200- /O.NEW.KCYS.HW.A.0057.211230T0600Z-211231T0600Z/ Ferris/Seminoe/Shirley Mountains-Shirley Basin- Central Laramie Range and Southwest Platte County- East Platte County-Central Carbon County- Upper North Platte River Basin-Laramie Valley-South Laramie Range- South Laramie Range Foothills- Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin, Bordeaux, Wheatland, Guernsey, Rawlins, Saratoga, Encampment, Laramie, Bosler, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 125 PM MST Tue Dec 28 2021 ...HIGH WIND WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY EVENING... * WHAT...Southwest winds 35 to 45 mph with gusts up to 70 mph possible. * WHERE...Ferris/Seminoe/Shirley Mountains, Shirley Basin, Central Laramie Range and Southwest Platte County, East Platte County, Central Carbon County, Upper North Platte River Basin, Laramie Valley, South Laramie Range and South Laramie Range Foothills. * WHEN...From Wednesday evening through Thursday evening. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. Patchy to areas of blowing snow from recent snowfall could reduce visibility to less than a half mile at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$
3 follow-up statements
437 WWUS75 KCYS 282350 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 450 PM MST Tue Dec 28 2021 WYZ110-291200- /O.EXP.KCYS.HW.W.0066.000000T0000Z-211229T0000Z/ /O.CON.KCYS.HW.A.0057.211230T0000Z-211231T0600Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 450 PM MST Tue Dec 28 2021 ...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY EVENING... ...HIGH WIND WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON... * WHAT...West winds 40 to 50 mph with gusts up to 75 mph possible. * WHERE...North Snowy Range Foothills. * WHEN...For the High Wind Warning, until 5 PM MST this afternoon. For the High Wind Watch, from Wednesday afternoon through Thursday evening. * 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. && $$ WYZ104>107-109-113-115>117-291200- /O.CON.KCYS.HW.A.0057.211230T0600Z-211231T0600Z/ Ferris/Seminoe/Shirley Mountains-Shirley Basin- Central Laramie Range and Southwest Platte County- East Platte County-Central Carbon County- Upper North Platte River Basin-Laramie Valley-South Laramie Range- South Laramie Range Foothills- Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin, Bordeaux, Wheatland, Guernsey, Rawlins, Saratoga, Encampment, Laramie, Bosler, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 450 PM MST Tue Dec 28 2021 ...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY EVENING... * WHAT...Southwest winds 35 to 45 mph with gusts up to 70 mph possible. * WHERE...Ferris/Seminoe/Shirley Mountains, Shirley Basin, Central Laramie Range and Southwest Platte County, East Platte County, Central Carbon County, Upper North Platte River Basin, Laramie Valley, South Laramie Range and South Laramie Range Foothills. * WHEN...From Wednesday evening through Thursday evening. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. Patchy to areas of blowing snow from recent snowfall could reduce visibility to less than a half mile at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$
146 WWUS75 KCYS 290925 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 225 AM MST Wed Dec 29 2021 WYZ110-292300- /O.UPG.KCYS.HW.A.0057.211230T0000Z-211231T0600Z/ /O.NEW.KCYS.HW.W.0067.211230T0100Z-211231T0600Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 225 AM MST Wed Dec 29 2021 ...HIGH WIND WARNING IN EFFECT FROM 6 PM THIS EVENING TO 11 PM MST THURSDAY... * WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain areas. * WHEN...From 6 PM this evening to 11 PM MST Thursday. * 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. Patchy to areas of blowing snow from recent snowfall could reduce visibility to less than a half mile at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WYZ101-292300- /O.EXA.KCYS.HW.A.0057.211230T0600Z-211231T0600Z/ Converse County Lower Elevations- Including the cities of Douglas, Glenrock, Bill, and Deer Creek 225 AM MST Wed Dec 29 2021 ...HIGH WIND WATCH IN EFFECT FROM THIS EVENING THROUGH THURSDAY EVENING... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph possible. * WHERE...Converse County Lower Elevations. * WHEN...From late this evening and especially for Thursday morning through Thursday evening. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ WYZ104>107-109-113-115>117-292300- /O.CON.KCYS.HW.A.0057.211230T0600Z-211231T0600Z/ Ferris/Seminoe/Shirley Mountains-Shirley Basin- Central Laramie Range and Southwest Platte County- East Platte County-Central Carbon County- Upper North Platte River Basin-Laramie Valley-South Laramie Range- South Laramie Range Foothills- Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin, Bordeaux, Wheatland, Guernsey, Rawlins, Saratoga, Encampment, Laramie, Bosler, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 225 AM MST Wed Dec 29 2021 ...HIGH WIND WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH THURSDAY EVENING... * WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph possible. * WHERE...Shirley Basin, Ferris/Seminoe/Shirley Mountains, South Laramie Range, South Laramie Range Foothills, East Platte County, Central Laramie Range and Southwest Platte County, Upper North Platte River Basin, Central Carbon County and Laramie Valley. * WHEN...From late this evening and especially for Thursday morning into Thursday 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. && $$
622 WWUS75 KCYS 292108 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 208 PM MST Wed Dec 29 2021 WYZ104-105-109-113-115-301200- /O.UPG.KCYS.HW.A.0057.211230T0600Z-211231T0600Z/ /O.EXB.KCYS.HW.W.0067.211230T0600Z-211231T0300Z/ Ferris/Seminoe/Shirley Mountains-Shirley Basin- Central Carbon County-Upper North Platte River Basin- Laramie Valley- Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin, Rawlins, Saratoga, Encampment, Laramie, and Bosler 208 PM MST Wed Dec 29 2021 ...HIGH WIND WARNING IN EFFECT FROM 11 PM THIS EVENING TO 8 PM MST THURSDAY... * WHAT...West to southwest 35 to 45 MPH with gusts up to 60 MPH expected. * WHERE...Much of Carbon and Albany Counties including Rawlins, Saratoga, Laramie, Shirley Basin, and Muddy Gap. * WHEN...11 PM MST this evening until 8 PM MST Thursday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ WYZ106-116-117-301200- /O.UPG.KCYS.HW.A.0057.211230T0600Z-211231T0600Z/ /O.EXB.KCYS.HW.W.0067.211230T0600Z-211231T0600Z/ Central Laramie Range and Southwest Platte County- South Laramie Range-South Laramie Range Foothills- Including the cities of Bordeaux, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 208 PM MST Wed Dec 29 2021 ...HIGH WIND WARNING IN EFFECT FROM 11 PM THIS EVENING TO 11 PM MST THURSDAY... * WHAT...West winds 40 to 55 MPH with gusts 70 to 80 MPH expected. * WHERE...Central and Southern Laramie Range and adjacent foothills. This includes Interstate 80 between Laramie and Cheyenne, and Bordeaux along Interstate 25 between Chugwater and Wheatland. The strongest winds are expected near the Interstate 80 Summit. * WHEN...11 PM MST this evening until 11 PM MST Thursday. * 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. && $$ WYZ101-107-301200- /O.UPG.KCYS.HW.A.0057.211230T0600Z-211231T0600Z/ /O.EXB.KCYS.HW.W.0067.211230T0400Z-211231T0300Z/ Converse County Lower Elevations-East Platte County- Including the cities of Douglas, Glenrock, Bill, Deer Creek, Wheatland, and Guernsey 208 PM MST Wed Dec 29 2021 ...HIGH WIND WARNING IN EFFECT FROM 9 PM THIS EVENING TO 8 PM MST THURSDAY... * WHAT...West winds 40 to 55 MPH with gusts 70 to 80 MPH expected. * WHERE...Converse and eastern Platte counties including Douglas, Wheatland, and Glendo. The strongest winds are expected between Wheatland and Glendo. * WHEN...9 PM MST this evening until 8 PM MST Thursday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ WYZ118-301200- /O.EXB.KCYS.HW.W.0067.211230T0800Z-211231T0300Z/ Central Laramie County- Including the city of Cheyenne 208 PM MST Wed Dec 29 2021 ...HIGH WIND WARNING IN EFFECT FROM 1 AM TO 8 PM MST THURSDAY... * WHAT...West winds 35 to 50 MPH with gusts up to 70 MPH possible. * WHERE...Central Laramie County including the city of Cheyenne. * WHEN...1 AM MST until 8 PM MST Thursday. * 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. && $$ WYZ110-301200- /O.CON.KCYS.HW.W.0067.211230T0100Z-211231T0600Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 208 PM MST Wed Dec 29 2021 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 11 PM MST THURSDAY... * WHAT...Southwest winds 40 to 55 MPH with gusts 70 to 80 MPH expected. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins. * WHEN...6 PM MST this evening until 11 PM MST Thursday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers between mile markers 240 and 290 on Interstate 80. Patchy to areas of blowing snow from recent snowfall could reduce visibility to less than a half mile at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ CLH
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 27, 10:18 PM MST | High Wind Warning | CYS | Albany, Carbon | 19 hr |
| Dec 28, 1:30 PM MST | Winter Storm Watch | CYS | Albany, Carbon | 13 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.