Alert archive / Wyoming / High Wind Warnings in 2020
High Wind Warning 49, NWS Cheyenne, WY
NWS Cheyenne, WY issued this high wind warning at Dec 12, 2020, 1:03 PM MST for Albany County, Carbon County, Wyoming. It took effect at Dec 13, 2020, 5:00 AM MST. It was in force for 21 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
- Dec 12, 2020, 1:03 PM MST (20:03 UTC)
- In effect from
- Dec 13, 2020, 5:00 AM MST
- Expired
- Dec 14, 2020, 2:27 AM MST
- In force
- 21 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 20:02 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 13, 7:00 AM MST | SNOW 0.6 | Elk Mountain, WY | COCORAHS STATION WY-CR-18 ELK MOUNTAIN 0.3 SW. |
| Dec 13, 7:00 AM MST | SNOW 0.7 | 6 Ne Riverside, WY | COCORAHS STATION WY-CR-32 RIVERSIDE 6.1 NE. |
| Dec 13, 7:00 AM MST | SNOW 1.5 | 2 Ene Laramie, WY | COCORAHS STATION WY-AB-138 LARAMIE 1.8 ENE. |
| Dec 13, 7:00 AM MST | SNOW 1.8 | 1 Sse Laramie, WY | COCORAHS STATION WY-AB-5 LARAMIE 1.3 SE. |
| Dec 13, 7:00 AM MST | SNOW 2.4 | 1 N Laramie, WY | COCORAHS STATION WY-AB-177 LARAMIE 0.8 N. |
| Dec 13, 7:00 AM MST | SNOW 4.1 | 2 N Laramie, WY | COCORAHS STATION WY-AB-45 LARAMIE 1.7 N. |
| Dec 13, 7:10 AM MST | SNOW 1 | 6 Ne Arlington, WY | COCORAHS STATION WY-CR-5 ROCK RIVER 9.6 WSW. |
| Dec 13, 7:30 AM MST | SNOW 1 | 3 N Saratoga, WY | CO-OP OBSERVER STATION SFHW4 3.4 N SARATOGA. |
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, 8.1 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
- 1665 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 89 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
143 WWUS75 KCYS 122003 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 103 PM MST Sat Dec 12 2020 WYZ110-131200- /O.UPG.KCYS.HW.A.0036.201213T0900Z-201214T1800Z/ /O.NEW.KCYS.HW.W.0049.201213T1200Z-201214T1500Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 103 PM MST Sat Dec 12 2020 ...HIGH WIND WARNING IN EFFECT FROM 5 AM SUNDAY TO 8 AM MST MONDAY... * WHAT...Sustained west to southwest winds 30 to 40 mph with gusts up to 60 mph. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain. * WHEN...From 5 AM Sunday to 8 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 Interstate 80 between Laramie and Rawlins. 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. && $$
3 follow-up statements
777 WWUS75 KCYS 130925 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 225 AM MST Sun Dec 13 2020 WYZ110-140000- /O.CON.KCYS.HW.W.0049.201213T1200Z-201214T1500Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 225 AM MST Sun Dec 13 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM MST MONDAY... * WHAT...Sustained west to southwest winds 30 to 40 MPH with gusts up to 60 MPH. * WHERE...North Snowy Range Foothills including Interstate 80 near Arlington and Elk Mountain. * WHEN...From 5 AM Sunday to 8 AM MST Monday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs, particularly along Interstate 80 between Laramie and Rawlins. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ Brothers
464 WWUS75 KCYS 132025 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 125 PM MST Sun Dec 13 2020 WYZ110-141200- /O.CON.KCYS.HW.W.0049.000000T0000Z-201214T1500Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 125 PM MST Sun Dec 13 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM MST MONDAY... * WHAT...Sustained west to southwest winds 30 to 40 MPH with gusts up to 60 MPH. * WHERE...North Snowy Range Foothills including Interstate 80 near Arlington and Elk Mountain. * WHEN...Until 8 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 Interstate 80 between Laramie and Rawlins. 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. && $$
854 WWUS75 KCYS 140927 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 227 AM MST Mon Dec 14 2020 WYZ110-141030- /O.CAN.KCYS.HW.W.0049.000000T0000Z-201214T1500Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 227 AM MST Mon Dec 14 2020 ...HIGH WIND WARNING IS CANCELLED... Wind gusts near the Arlington area along Interstate 80 have been gusting up to 45 MPH early this morning, however gusts are not up to high wind criteria. Height gradients will continue to decrease along with upper level wind flow over the next few hours. Therefore, the High Wind Warning will be cancelled. However, wind gusts to 45 MPH in the area could continue through mid-morning. $$ Brothers
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 12, 2:40 AM MST | High Wind Watch | CYS | Albany, Carbon | 10 hr |
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.