Alert archive / Wyoming / High Wind Warnings in 2020
High Wind Warning 48, NWS Cheyenne, WY
NWS Cheyenne, WY issued this high wind warning at Dec 4, 2020, 5:23 AM MST for Albany County, Laramie County, Platte County, Wyoming. It was in force for 7 hr. 1 report 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
- Dec 4, 2020, 5:23 AM MST (12:23 UTC)
- Expired
- Dec 4, 2020, 12:10 PM MST
- In force
- 7 hr
- Issued by
- NWS Cheyenne, WY
Counties Albany County, WY, Laramie County, WY, Platte County, WY
The radar
The Cheyenne radar (KCYS), 66 km from the middle of the area, began a volume at 12:25 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 |
|---|---|---|---|
| Dec 4, 6:38 AM MST | HIGH SUST WINDS 40 | 1 Sse Bordeaux, WY | MESONET STATION KBRX ALONG INTERSTATE 25 (WYDOT). 1 HOUR AVERAGE SUSTAINED WINDS. MAX GUST OF 51 MPH. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 0.4 hours before the alert went out and 259 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
- 2513 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
234 WWUS75 KCYS 041223 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 523 AM MST Fri Dec 4 2020 WYZ106-042100- /O.NEW.KCYS.HW.W.0048.201204T1223Z-201204T2100Z/ Central Laramie Range and Southwest Platte County- Including the city of Bordeaux 523 AM MST Fri Dec 4 2020 ...HIGH WIND WARNING IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... * WHAT...West winds 40 to 45 MPH with occasional gusts up to 55 MPH possible. * WHERE...Bordeaux along Interstate 25 between Chugwater and Wheatland, mainly between Mile Markers 65 and 75. * WHEN...Until 2 PM MST this afternoon. * 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. && $$ CLH
1 follow-up statement
578 WWUS75 KCYS 041910 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 1210 PM MST Fri Dec 4 2020 WYZ106-042015- /O.CAN.KCYS.HW.W.0048.000000T0000Z-201204T2100Z/ Central Laramie Range and Southwest Platte County- Including the city of Bordeaux 1210 PM MST Fri Dec 4 2020 ...HIGH WIND WARNING IS CANCELLED... Wind speeds near Bordeaux have decreased over the past hour with a continued downtrend expected through the rest of the afternoon. While some wind gusts could reach upwards of 40 mph, overall hazard to light, high-profile vehicles is lowering. $$
Nearby
High Wind Warnings in Wyoming, 2020Every high wind warning in 2020
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.