Alert archive / Wyoming / High Wind Warnings in 2021
High Wind Warning 45, NWS Cheyenne, WY
NWS Cheyenne, WY issued this high wind warning at Nov 20, 2021, 2:17 PM MST for 4 counties in Wyoming. It took effect at Nov 21, 2021, 8:00 AM MST. It was in force for 27 hr. 11 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
- Nov 20, 2021, 2:17 PM MST (21:17 UTC)
- In effect from
- Nov 21, 2021, 8:00 AM MST
- Expired
- Nov 22, 2021, 11:00 AM MST
- In force
- 27 hr
- 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 21:19 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 |
|---|---|---|---|
| Nov 21, 10:46 PM MST | HIGH SUST WINDS 42 | 1 Nnw Arlington, WY | CORRECTS PREVIOUS HIGH SUST WINDS REPORT FROM 1 NNW ARLINGTON. MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT). AVERAGE SUSTAINED WIND FOR PAST HOUR ENDING AT 1046 PM MST. PEAK GUST 55 MPH. |
| Nov 21, 10:46 PM MST | HIGH SUST WINDS 43 | 1 Nnw Arlington, WY | MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT). AVERAGE SUSTAINED WIND FOR PAST HOUR ENDING AT 1046 PM MST. PEAK GUST 55 MPH. |
| Nov 21, 11:06 PM MST | NON-TSTM WND GST 61 | 3 Ese Elk Mountain, WY | MESONET STATION WY20 2.5 SE ELK MOUNTAIN (WYDOT). |
| Nov 22, 2:10 AM MST | NON-TSTM WND GST 65 | 3 Ese Elk Mountain, WY | MESONET STATION WY20 2.5 SE ELK MOUNTAIN (WYDOT). |
| Nov 22, 2:22 AM MST | HIGH SUST WINDS 43 | 1 Nnw Arlington, WY | MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT). AVERAGE SUSTAINED WIND FOR PAST HOUR ENDING AT 222 AM MST. PEAK GUST 57 MPH. |
| Nov 22, 3:22 AM MST | HIGH SUST WINDS 40 | 1 Nnw Arlington, WY | MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT). AVERAGE SUSTAINED WIND FOR PAST HOUR ENDING AT 322 AM MST. PEAK GUST 55 MPH. |
| Nov 22, 3:25 AM MST | HIGH SUST WINDS 41 | 2 Wnw Buford, WY | MESONET STATION UR535 SHERWS. AVERAGE SUSTAINED WIND FOR PAST HOUR ENDING AT 325 AM MST. |
| Nov 22, 4:08 AM MST | HIGH SUST WINDS 39 | 1 Ene Buford, WY | MESONET STATION WY37 1.1 E BUFORD (WYDOT). AVERAGE SUSTAINED WIND 39.3 MPH WITH A PEAK GUST TO 54 MPH. |
| Nov 22, 4:26 AM MST | NON-TSTM WND GST 70 | 3 Ese Elk Mountain, WY | MESONET STATION WY20 2.5 SE ELK MOUNTAIN (WYDOT). |
| Nov 22, 5:12 AM MST | NON-TSTM WND GST 58 | 3 Ese Elk Mountain, WY | MESONET STATION WY20 2.5 SE ELK MOUNTAIN (WYDOT). |
| Nov 22, 6:34 AM MST | HIGH SUST WINDS 40 | 1 Sse Bordeaux, WY | MESONET STATION KBRX 1.4 S BORDEAUX (WYDOT). AVERAGE SUSTAINED WIND FOR PAST HOUR ENDING AT 634 AM MST. PEAK GUST 57 MPH. |
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 12:00Z, 9.3 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
- 1460 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
301 WWUS75 KCYS 202117 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 217 PM MST Sat Nov 20 2021 WYZ110-211100- /O.UPG.KCYS.HW.A.0038.211121T1200Z-211122T1800Z/ /O.NEW.KCYS.HW.W.0045.211121T1800Z-211122T1800Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 217 PM MST Sat Nov 20 2021 ...HIGH WIND WARNING IN EFFECT FROM 11 AM SUNDAY TO 11 AM MST MONDAY... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected especially late in day on Sunday and Sunday night. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain. * WHEN...From 11 AM Sunday to 11 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. There will be a high risk for vehicle blow overs, particularly along north to south oriented roadways. 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. && $$
5 follow-up statements
060 WWUS75 KCYS 211044 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 344 AM MST Sun Nov 21 2021 WYZ110-220000- /O.EXT.KCYS.HW.W.0045.211121T1500Z-211122T1800Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 344 AM MST Sun Nov 21 2021 ...HIGH WIND WARNING NOW IN EFFECT FROM 8 AM THIS MORNING TO 11 AM MST MONDAY... * WHAT...West to southwest winds 35 to 45 mph with gusts up to 70 MPH. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins. * WHEN...8 AM MST this morning until 11 AM MST Monday. The strongest winds are expected this evening and overnight. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs, particularly along north to south oriented roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ CLH
504 WWUS75 KCYS 220231 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 731 PM MST Sun Nov 21 2021 WYZ110-221200- /O.CON.KCYS.HW.W.0045.000000T0000Z-211122T1800Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 731 PM MST Sun Nov 21 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST MONDAY... * WHAT...West to southwest winds 35 to 45 mph with gusts up to 70 MPH. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins. * WHEN...Through 11 AM MST Monday. The strongest winds are expected this evening and overnight. * 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... 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. && $$
865 WWUS75 KCYS 221025 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 325 AM MST Mon Nov 22 2021 WYZ110-230000- /O.NEW.KCYS.HW.W.0046.211123T0900Z-211124T0000Z/ /O.CON.KCYS.HW.W.0045.000000T0000Z-211122T1800Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 325 AM MST Mon Nov 22 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... ...HIGH WIND WARNING IN EFFECT FROM 2 AM TO 5 PM MST TUESDAY... * WHAT...West to southwest winds 35 to 45 MPH with gusts up to 65 MPH expected. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins. * WHEN...Until 11 AM MST this morning. A lull in the strongest wind speeds will occur this afternoon, although frequent gusts in excess of 45 MPH will remain possible. A second round of strong winds is expected between 2 AM and 5 PM MST Tuesday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs, particularly along north to south oriented roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ WYZ116-230000- /O.EXB.KCYS.HW.W.0045.000000T0000Z-211123T1800Z/ South Laramie Range- Including the cities of Buford, Pumpkin Vine, and Vedauwoo 325 AM MST Mon Nov 22 2021 ...HIGH WIND WARNING IN EFFECT UNTIL 11 AM MST TUESDAY... * WHAT...West winds 35 to 45 mph with gusts up to 60 mph. * WHERE...South Laramie Range including the Interstate 80 Summit between Laramie and Cheyenne. * WHEN...Now until 11 AM 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. && $$ CLH
626 WWUS75 KCYS 221315 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 615 AM MST Mon Nov 22 2021 WYZ116-221415- /O.CAN.KCYS.HW.W.0045.000000T0000Z-211123T1800Z/ South Laramie Range- Including the cities of Buford, Pumpkin Vine, and Vedauwoo 615 AM MST Mon Nov 22 2021 ...HIGH WIND WARNING IS CANCELLED... Wind gusts in excess of 60 MPH are no longer expected. However, periods of winds 35 to 40 MPH with gusts around 50 MPH may still occur early this morning. $$ 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. && $$ CLH
561 WWUS75 KCYS 221758 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 1058 AM MST Mon Nov 22 2021 WYZ110-222000- /O.EXP.KCYS.HW.W.0045.000000T0000Z-211122T1800Z/ /O.CON.KCYS.HW.W.0046.211123T0900Z-211124T0000Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 1058 AM MST Mon Nov 22 2021 ...HIGH WIND WARNING WILL EXPIRE AT 11 AM MST THIS MORNING... ...HIGH WIND WARNING REMAINS IN EFFECT FROM 2 AM TO 5 PM MST TUESDAY... * WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins. * WHEN...Current High Wind Warning is expiring at 11AM. Gusty winds to 45 mph remain possible through the day and evening. A second round of strong winds is expected between 2 AM and 5 PM MST Tuesday. * IMPACTS... Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ 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. && $$ WYZ107-222000- /O.CON.KCYS.HW.A.0039.211123T0600Z-211124T0000Z/ East Platte County- Including the cities of Wheatland and Guernsey 1058 AM MST Mon Nov 22 2021 ...HIGH WIND WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH TUESDAY AFTERNOON... * WHAT...West winds 35 to 45 MPH with gusts up to 60 MPH possible. * WHERE...East Platte County including Interstate 25 between Chugwater and Glendo. * WHEN...11 PM MST this evening until 5 PM MST Tuesday. The strongest winds are expected early Tuesday morning. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs, particularly along north to south oriented roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 20, 2:37 AM MST | High Wind Watch | CYS | Albany, Carbon | 12 hr |
Nearby
High Wind Warnings in Wyoming, 2021Every high wind 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.