Alert archive / Wyoming / High Wind Watches in 2021
High Wind Watch 13, NWS Cheyenne, WY
NWS Cheyenne, WY issued this high wind watch at Feb 27, 2021, 3:06 AM MST for 4 counties in Wyoming. It took effect at Feb 28, 2021, 5:00 PM MST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Feb 27, 2021, 3:06 AM MST (10:06 UTC)
- In effect from
- Feb 28, 2021, 5:00 PM MST
- Expired
- Feb 28, 2021, 3:02 AM 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 10:08 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, 10.1 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
- 2540 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
509 WWUS75 KCYS 271006 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 306 AM MST Sat Feb 27 2021 WYZ106-110-280000- /O.NEW.KCYS.HW.A.0013.210301T0000Z-210301T1800Z/ Central Laramie Range and Southwest Platte County- North Snowy Range Foothills- Including the cities of Bordeaux, Arlington, and Elk Mountain 306 AM MST Sat Feb 27 2021 ...HIGH WIND WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...West winds 35 to 45 mph with gusts up to 60 mph possible. * WHERE...Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins, Bordeaux along Interstate 25 between Chugwater and Wheatland. * WHEN...5 PM MST Sunday until 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. 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. && $$ CLH
2 follow-up statements
404 WWUS75 KCYS 272001 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 101 PM MST Sat Feb 27 2021 WYZ106-110-281200- /O.CON.KCYS.HW.A.0013.210301T0000Z-210301T1800Z/ Central Laramie Range and Southwest Platte County- North Snowy Range Foothills- Including the cities of Bordeaux, Arlington, and Elk Mountain 101 PM MST Sat Feb 27 2021 ...HIGH WIND WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...Sustained west winds 30 to 40 mph with gusts up to 65 mph possible. * WHERE...Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins. Bordeaux along Interstate 25 between Chugwater and Wheatland. * WHEN...5 PM MST Sunday until 11 AM MST Monday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of strong winds. && $$
294 WWUS75 KCYS 281002 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 302 AM MST Sun Feb 28 2021 WYZ106-110-010000- /O.UPG.KCYS.HW.A.0013.210301T0000Z-210301T1800Z/ /O.NEW.KCYS.HW.W.0019.210301T0000Z-210301T1800Z/ Central Laramie Range and Southwest Platte County- North Snowy Range Foothills- Including the cities of Bordeaux, Arlington, and Elk Mountain 302 AM MST Sun Feb 28 2021 ...HIGH WIND WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST MONDAY... * WHAT...West winds 35 to 45 mph with gusts up to 60 mph expected. * WHERE...Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins, Bordeaux along Interstate 25 between Chugwater and Wheatland. * WHEN...5 PM MST today until 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. 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 |
|---|---|---|---|---|
| Feb 27, 1:00 PM MST | Winter Weather Advisory | CYS | Albany, Carbon | 16 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.