Alert archive / Wyoming / High Wind Warnings in 2021
High Wind Warning 10, NWS Cheyenne, WY
NWS Cheyenne, WY issued this high wind warning at Feb 2, 2021, 12:43 PM MST for 4 counties in Wyoming. It took effect at Feb 2, 2021, 11:00 PM MST. It was in force for 18 hr. 8 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
- Feb 2, 2021, 12:43 PM MST (19:43 UTC)
- In effect from
- Feb 2, 2021, 11:00 PM MST
- Expired
- Feb 3, 2021, 5:00 PM MST
- In force
- 18 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 19:48 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 |
|---|---|---|---|
| Feb 3, 1:26 AM MST | NON-TSTM WND GST 60 | 1 Nnw Arlington, WY | MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT). |
| Feb 3, 12:46 PM MST | HEAVY SNOW 0.1 | 3 Ese Elk Mountain, WY | SNOW SQUALL. REDUCE VISIBILITY TO ONE QUARTER MILE FOR 10 MINUTES. I80 COUNTY ROAD 402. |
| Feb 3, 1:04 PM MST | HEAVY SNOW 0.1 | 1 Nnw Arlington, WY | SNOW SQUALL. REDUCE VISIBILITY UNDER ONE QUARTER MILE FOR SIX MINUTES. I80 ARLINGTON. |
| Feb 3, 1:14 PM MST | HEAVY SNOW 0.1 | 7 Ese Arlington, WY | SNOW SQUALL. REDUCE VISIBILITY UNDER ONE QUARTER MILE FOR 14 MINUTES. I80 COOPER COVE. |
| Feb 3, 1:38 PM MST | HEAVY SNOW 0.1 | 7 Ese Arlington, WY | SNOW SQUALL. REDUCE VISIBILITY UNDER ONE QUARTER MILE FOR FOUR MINUTES. I80 COOPER COVE. |
| Feb 3, 3:00 PM MST | HEAVY SNOW 0.1 | Pumpkin Vine, WY | SNOW SQUALL. REDUCE VISIBILITY UNDER ONE QUARTER MILE FOR SIX MINUTES. US287 - PUMPKIN VINE. |
| Feb 3, 3:04 PM MST | HEAVY SNOW 0.1 | 11 Se Arlington, WY | SNOW SQUALL. REDUCE VISIBILITY UNDER ONE QUARTER MILE FOR EIGHT MINUTES. I80 STROUSS HILL. |
| Feb 3, 3:30 PM MST | HEAVY SNOW 0.1 | 4 Nnw Vedauwoo, WY | SNOW SQUALL. REDUCE VISIBILITY UNDER ONE QUARTER MILE FOR TEN MINUTES. I80/US30 - SUMMIT EAST. |
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, 7.7 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
- 2366 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
470 WWUS75 KCYS 021943 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 1243 PM MST Tue Feb 2 2021 WYZ110-031200- /O.UPG.KCYS.HW.A.0007.210203T0600Z-210203T2100Z/ /O.NEW.KCYS.HW.W.0010.210203T0600Z-210204T0000Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 1243 PM MST Tue Feb 2 2021 ...HIGH WIND WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST WEDNESDAY... The National Weather Service in Cheyenne has issued a High Wind Warning, which is in effect from 11 PM this evening to 5 PM MST Wednesday. The High Wind Watch is no longer in effect. * WHAT...Southwest winds 35 to 45 mph with gusts around 65 mph possible. * WHERE...North Snowy Range Foothills in east central Carbon County and extreme west central Albany County. * WHEN...From late this evening through Wednesday afternoon. * Impacts...Mainly to transportation. Significant blowoff and or blowover potential for lightweight and high profile vehicles on Interstate 80 near Arlington and Elk Mountain. 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 and travel difficulties. && $$ WYZ106-116-117-031200- /O.CON.KCYS.HW.A.0007.210203T0900Z-210203T2100Z/ Central Laramie Range and Southwest Platte County- South Laramie Range-South Laramie Range Foothills- Including the cities of Bordeaux, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 1243 PM MST Tue Feb 2 2021 ...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY AFTERNOON... * WHAT...West winds 25 to 35 mph with gusts up to 65 mph possible. * WHERE...Central Laramie Range and Southwest Platte County, South Laramie Range and South Laramie Range Foothills. * WHEN...From late tonight through Wednesday afternoon. * IMPACTS...Mainly to transportation. Significant blowoff and or blowover potential for lightweight and high profile vehicles on Interstate 80 over the south Laramie Range and Interstate 25 near Bordeaux. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$
5 follow-up statements
430 WWUS75 KCYS 030403 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 903 PM MST Tue Feb 2 2021 WYZ110-031215- /O.CON.KCYS.HW.W.0010.210203T0600Z-210204T0000Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 903 PM MST Tue Feb 2 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST WEDNESDAY... * WHAT...Southwest winds 35 to 45 mph with gusts around 65 mph possible. * WHERE...North Snowy Range Foothills in east central Carbon County and extreme west central Albany County. * WHEN...From late this evening through Wednesday afternoon. * IMPACTS...Mainly to transportation. Significant blowoff and or blowover potential for lightweight and high profile vehicles on Interstate 80 near Arlington and Elk Mountain. 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 and travel difficulties. && $$ WYZ107-031215- /O.EXA.KCYS.HW.A.0007.210203T0900Z-210203T2100Z/ East Platte County- Including the cities of Wheatland and Guernsey 903 PM MST Tue Feb 2 2021 ...HIGH WIND WATCH IN EFFECT FROM 2 AM MST WEDNESDAY THROUGH WEDNESDAY AFTERNOON... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...East Platte County County. * WHEN...From late tonight through Wednesday afternoon. * IMPACTS...Mainly to transportation. Significant blowoff and or blowover potential for lightweight and high profile vehicles on Interstate 25 between Wheatland and Glendo. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ WYZ106-116-117-031215- /O.CON.KCYS.HW.A.0007.210203T0900Z-210203T2100Z/ 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 903 PM MST Tue Feb 2 2021 ...HIGH WIND WATCH REMAINS IN EFFECT FROM 2 AM MST WEDNESDAY THROUGH WEDNESDAY AFTERNOON... * WHAT...West winds 25 to 35 mph with gusts up to 65 mph possible. * WHERE...Central Laramie Range and Southwest Platte County, South Laramie Range and South Laramie Range Foothills. * WHEN...From late tonight through Wednesday afternoon. * IMPACTS...Mainly to transportation. Significant blowoff and or blowover potential for lightweight and high profile vehicles on Interstate 80 over the South Laramie Range and Interstate 25 near Bordeaux. 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. && $$ Brothers
846 WWUS75 KCYS 030845 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 145 AM MST Wed Feb 3 2021 WYZ106-107-116-117-030945- /O.CAN.KCYS.HW.A.0007.210203T0900Z-210203T2100Z/ Central Laramie Range and Southwest Platte County- East Platte County-South Laramie Range- South Laramie Range Foothills- Including the cities of Bordeaux, Wheatland, Guernsey, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 145 AM MST Wed Feb 3 2021 ...HIGH WIND WATCH IS CANCELLED... Wind gusts around 50 MPH will still be possible this morning. However, winds are expected to remain below warning criteria. $$ WYZ110-040000- /O.CON.KCYS.HW.W.0010.000000T0000Z-210204T0000Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 145 AM MST Wed Feb 3 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Southwest winds 35 to 45 mph with gusts around 65 mph possible. * WHERE...Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins. * WHEN...Until 5 PM MST today. * 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. 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. && $$ CLH
516 WWUS75 KCYS 031720 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 1020 AM MST Wed Feb 3 2021 WYZ106-107-116-117-040000- /O.EXA.KCYS.HW.W.0010.000000T0000Z-210204T0000Z/ Central Laramie Range and Southwest Platte County- East Platte County-South Laramie Range- South Laramie Range Foothills- Including the cities of Bordeaux, Wheatland, Guernsey, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 1020 AM MST Wed Feb 3 2021 ...HIGH WIND WARNING IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph. * WHERE...This includes areas along I-25 between Glendo and the Wyoming and Colorado border. This also includes portions of I-80 west of Cheyenne to the I-80 summit. * WHEN...Until 5 PM MST today. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WYZ110-040000- /O.CON.KCYS.HW.W.0010.000000T0000Z-210204T0000Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 1020 AM MST Wed Feb 3 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Southwest winds 35 to 45 mph with gusts around 65 mph possible. * WHERE...Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins. * WHEN...Until 5 PM MST today. * 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. 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. && $$
903 WWUS75 KCYS 032136 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 236 PM MST Wed Feb 3 2021 WYZ106-107-110-032245- /O.CAN.KCYS.HW.W.0010.000000T0000Z-210204T0000Z/ Central Laramie Range and Southwest Platte County- East Platte County-North Snowy Range Foothills- Including the cities of Bordeaux, Wheatland, Guernsey, Arlington, and Elk Mountain 236 PM MST Wed Feb 3 2021 ...HIGH WIND WARNING IS CANCELLED... A cold front will continue to sweep southward across Platte county during the next couple of hours. As a result, we will see a wind shift along with diminishing wind speeds and much colder temperatures. Meanwhile, snow showers and snow squalls will continue to develop across the Arlington area. $$ WYZ116-117-040000- /O.CON.KCYS.HW.W.0010.000000T0000Z-210204T0000Z/ South Laramie Range-South Laramie Range Foothills- Including the cities of Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 236 PM MST Wed Feb 3 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph. * WHERE...This includes areas along I-25 in western Laramie county which is affecting areas mainly west of Cheyenne. This also includes portions of I- 80 west of Cheyenne to the I-80 summit. * WHEN...Until 5 PM MST today. * 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. 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. && $$
847 WWUS75 KCYS 032354 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 454 PM MST Wed Feb 3 2021 WYZ116-117-040100- /O.EXP.KCYS.HW.W.0010.000000T0000Z-210204T0000Z/ South Laramie Range-South Laramie Range Foothills- Including the cities of Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 454 PM MST Wed Feb 3 2021 ...HIGH WIND WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON... Wind gusts have diminished in the last several hours out of high wind range; however, gusty winds in the 30 mph range continue. As snow showers continue to spread across the I-80 corridor between Laramie and Cheyenne, will continue to see reduced visibilities, blowing snow, and slick conditions. Have opted to issue a Winter Weather Advisory for the I-80 Summit area now through tomorrow morning - please see the Advisory for further details. $$ Braun
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 2, 12:46 AM MST | High Wind Watch | CYS | Albany, Carbon, Laramie, Platte | 25 hr |
| Feb 2, 12:53 AM MST | Winter Storm Watch | CYS | Albany, Carbon | 12 hr |
| Feb 2, 12:43 PM MST | Winter Storm Warning | CYS | Albany, Carbon | 46 hr |
| Feb 2, 12:43 PM MST | Winter Weather Advisory | CYS | Albany, Carbon, Laramie | 40 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.