Alert archive / Wyoming / High Wind Watches in 2021
High Wind Watch 39, NWS Cheyenne, WY
NWS Cheyenne, WY issued this high wind watch at Nov 22, 2021, 6:15 AM MST for Platte County, Wyoming. It took effect at Nov 22, 2021, 11:00 PM MST. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Nov 22, 2021, 6:15 AM MST (13:15 UTC)
- In effect from
- Nov 22, 2021, 11:00 PM MST
- Expired
- Nov 23, 2021, 2:28 AM MST
- In force
- 3 hr
- Issued by
- NWS Cheyenne, WY
County Platte County, WY
The radar
The Cheyenne radar (KCYS), 110 km from the middle of the area, began a volume at 13:14 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
Rapid City, SD (KUNR), launched 12:00Z, 1.3 hours before the alert went out and 274 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
- 2446 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 270 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
626 WWUS75 KCYS 221315 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 615 AM MST Mon Nov 22 2021 WYZ116-221415- /O.CAN.KCYS.HW.W.0045.000000T0000Z-211123T1800Z/ South Laramie Range- Including the cities of Buford, Pumpkin Vine, and Vedauwoo 615 AM MST Mon Nov 22 2021 ...HIGH WIND WARNING IS CANCELLED... Wind gusts in excess of 60 MPH are no longer expected. However, periods of winds 35 to 40 MPH with gusts around 50 MPH may still occur early this morning. $$ WYZ106-230000- /O.EXB.KCYS.HW.W.0046.211123T0600Z-211124T0000Z/ /O.EXA.KCYS.HW.W.0045.000000T0000Z-211122T1800Z/ Central Laramie Range and Southwest Platte County- Including the city of Bordeaux 615 AM MST Mon Nov 22 2021 ...HIGH WIND WARNING IN EFFECT UNTIL 11 AM MST THIS MORNING... ...HIGH WIND WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST TUESDAY... * WHAT...West winds 35 to 45 MPH with gusts up to 60 MPH. * WHERE...Bordeaux along Interstate 25 between Chugwater and Wheatland. * WHEN...Winds remaining strong until 11 AM MST this morning. A lull in the strongest wind speeds will occur this afternoon, although gusts in excess of 40 MPH will remain possible. A second round of strong winds is expected between 11 PM MST this evening and 5 PM MST Tuesday with the strongest winds expected early Tuesday morning. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs, particularly along north to south oriented roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ WYZ110-230000- /O.CON.KCYS.HW.W.0045.000000T0000Z-211122T1800Z/ /O.CON.KCYS.HW.W.0046.211123T0900Z-211124T0000Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 615 AM MST Mon Nov 22 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... ...HIGH WIND WARNING REMAINS IN EFFECT FROM 2 AM TO 5 PM MST TUESDAY... * WHAT...West to southwest winds 35 to 45 MPH with gusts up to 65 MPH expected. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins. * WHEN...Until 11 AM MST this morning. A lull in the strongest wind speeds will occur this afternoon, although frequent gusts in excess of 45 MPH will remain possible. A second round of strong winds is expected between 2 AM and 5 PM MST Tuesday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs, particularly along north to south oriented roadways. 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. && $$ WYZ107-230000- /O.NEW.KCYS.HW.A.0039.211123T0600Z-211124T0000Z/ East Platte County- Including the cities of Wheatland and Guernsey 615 AM MST Mon Nov 22 2021 ...HIGH WIND WATCH IN EFFECT FROM THIS EVENING THROUGH TUESDAY AFTERNOON... * WHAT...West winds 35 to 45 MPH with gusts up to 60 MPH possible. * WHERE...East Platte County including Interstate 25 between Chugwater and Glendo. * WHEN...11 PM MST this evening until 5 PM MST Tuesday. The strongest winds are expected early Tuesday morning. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs, particularly along north to south oriented roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ CLH
2 follow-up statements
561 WWUS75 KCYS 221758 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 1058 AM MST Mon Nov 22 2021 WYZ110-222000- /O.EXP.KCYS.HW.W.0045.000000T0000Z-211122T1800Z/ /O.CON.KCYS.HW.W.0046.211123T0900Z-211124T0000Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 1058 AM MST Mon Nov 22 2021 ...HIGH WIND WARNING WILL EXPIRE AT 11 AM MST THIS MORNING... ...HIGH WIND WARNING REMAINS IN EFFECT FROM 2 AM TO 5 PM MST TUESDAY... * WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins. * WHEN...Current High Wind Warning is expiring at 11AM. Gusty winds to 45 mph remain possible through the day and evening. A second round of strong winds is expected between 2 AM and 5 PM MST Tuesday. * IMPACTS... Travel will be difficult, especially for high profile vehicles. 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. && $$ WYZ106-222000- /O.EXP.KCYS.HW.W.0045.000000T0000Z-211122T1800Z/ /O.CON.KCYS.HW.W.0046.211123T0600Z-211124T0000Z/ Central Laramie Range and Southwest Platte County- Including the city of Bordeaux 1058 AM MST Mon Nov 22 2021 ...HIGH WIND WARNING WILL EXPIRE AT 11 AM MST THIS MORNING... ...HIGH WIND WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST TUESDAY... * WHAT...West winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...Bordeaux along Interstate 25 between Chugwater and Wheatland. * WHEN...Current High Wind Warning is expiring at 11AM. Gusty winds to 45 mph remain possible through the day and evening. A second round of strong winds is expected between 11 PM MST this evening and 5 PM MST Tuesday with the strongest winds expected early Tuesday morning. * IMPACTS...Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WYZ107-222000- /O.CON.KCYS.HW.A.0039.211123T0600Z-211124T0000Z/ East Platte County- Including the cities of Wheatland and Guernsey 1058 AM MST Mon Nov 22 2021 ...HIGH WIND WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH TUESDAY AFTERNOON... * WHAT...West winds 35 to 45 MPH with gusts up to 60 MPH possible. * WHERE...East Platte County including Interstate 25 between Chugwater and Glendo. * WHEN...11 PM MST this evening until 5 PM MST Tuesday. The strongest winds are expected early Tuesday morning. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs, particularly along north to south oriented roadways. 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. && $$
393 WWUS75 KCYS 230928 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 228 AM MST Tue Nov 23 2021 WYZ107-231030- /O.CAN.KCYS.HW.A.0039.000000T0000Z-211124T0000Z/ East Platte County- Including the cities of Wheatland and Guernsey 228 AM MST Tue Nov 23 2021 ...HIGH WIND WATCH IS CANCELLED... The High Wind Watch has been cancelled. Strong, gusty southwest winds up to 50-55mph are still possible through this afternoon. $$ WYZ110-231730- /O.CON.KCYS.HW.W.0046.000000T0000Z-211124T0000Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 228 AM MST Tue Nov 23 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Southwest winds 35 to 45 mph with gusts up to 65 mph. * WHERE...North Snowy Range Foothills. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Travel will be difficult, especially for high profile vehicles. 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. && $$ WYZ106-231730- /O.CON.KCYS.HW.W.0046.000000T0000Z-211124T0000Z/ Central Laramie Range and Southwest Platte County- Including the city of Bordeaux 228 AM MST Tue Nov 23 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...West winds 35 to 45 mph with gusts up to 70 mph. * WHERE...Central Laramie Range and Southwest Platte County. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ BW
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 21, 6:01 PM MST | Red Flag Warning | CYS | 23 hr | |
| Nov 22, 3:25 AM MST | High Wind Warning | CYS | Albany, Carbon, Laramie, Platte | 38 hr |
| Nov 22, 2:37 PM MST | Red Flag Warning | CYS | 25 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.