Alert archive / Wyoming / High Wind Warnings in 2021
High Wind Warning 31, NWS Cheyenne, WY
NWS Cheyenne, WY issued this high wind warning at Aug 20, 2021, 1:34 PM MDT for Albany County, Carbon County, Wyoming. It was in force for 4 hr. 2 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
- Aug 20, 2021, 1:34 PM MDT (19:34 UTC)
- Expired
- Aug 20, 2021, 6:00 PM MDT
- In force
- 4 hr
- Issued by
- NWS Cheyenne, WY
Counties Albany County, WY, Carbon County, WY
The radar
The Cheyenne radar (KCYS), 140 km from the middle of the area, began a volume at 19:39 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 |
|---|---|---|---|
| Aug 20, 1:44 PM MDT | HIGH SUST WINDS 40 | 1 Nnw Arlington, WY | AVERAGE SUSTAINED WIND FOR PAST HOUR ENDING AT 144 PM MDT. PEAK WIND GUST 63 MPH. |
| Aug 20, 2:02 PM MDT | NON-TSTM WND GST 63 | 1 Nnw Arlington, WY | MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT). |
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, 7.6 hours before the alert went out and 230 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
- 1224 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 155 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
581 WWUS75 KCYS 201934 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 134 PM MDT Fri Aug 20 2021 WYZ110-210000- /O.NEW.KCYS.HW.W.0031.210820T1934Z-210821T0000Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 134 PM MDT Fri Aug 20 2021 ...HIGH WIND WARNING IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...West winds 40 to 50 mph with gusts up to 65 mph. * WHERE...Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Mainly to transportation. Strong crosswinds 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. && $$ CLH
1 follow-up statement
470 WWUS75 KCYS 202339 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 539 PM MDT Fri Aug 20 2021 WYZ110-210045- /O.EXP.KCYS.HW.W.0031.000000T0000Z-210821T0000Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 539 PM MDT Fri Aug 20 2021 ...HIGH WIND WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING... Winds are easing along Interstate 80 near Arlington and are no longer expected to reach warning levels. The High Wind Warning will be allowed to expire on time at 6 PM this evening. $$
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 6:55 PM MDT | Special Weather Statement | CYS | Platte | 35 min |
| Aug 19, 7:29 PM MDT | Special Weather Statement | CYS | Goshen | 31 min |
| Aug 19, 8:15 PM MDT | Special Weather Statement | CYS | Goshen | 30 min |
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.