Alert archive / Wyoming / High Wind Watches in 2021
High Wind Watch 1, NWS Cheyenne, WY
NWS Cheyenne, WY issued this high wind watch at Jan 1, 2021, 2:09 AM MST for Platte County, Wyoming. It took effect at Jan 2, 2021, 8:00 AM MST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Jan 1, 2021, 2:09 AM MST (09:09 UTC)
- In effect from
- Jan 2, 2021, 8:00 AM MST
- Expired
- Jan 1, 2021, 1:06 PM MST
- In force
- Issued by
- NWS Cheyenne, WY
County Platte County, WY
The radar
The Cheyenne radar (KCYS), 110 km from the middle of the area, began a volume at 09:15 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
Rapid City, SD (KUNR), launched 00:00Z, 9.2 hours before the alert went out and 274 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
- 1619 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- -66 m²/s²
- 0-3 km storm-relative helicity
- -12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
062 WWUS75 KCYS 010909 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 209 AM MST Fri Jan 1 2021 WYZ106-110-116-117-020000- /O.UPG.KCYS.HW.A.0042.210102T0600Z-210104T0600Z/ /O.NEW.KCYS.HW.W.0001.210102T0300Z-210104T0600Z/ Central Laramie Range and Southwest Platte County- North Snowy Range Foothills-South Laramie Range- South Laramie Range Foothills- Including the cities of Bordeaux, Arlington, Elk Mountain, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 209 AM MST Fri Jan 1 2021 ...HIGH WIND WARNING IN EFFECT FROM 8 PM THIS EVENING TO 11 PM MST SUNDAY... * WHAT...West to southwest winds 35 to 50 mph with gusts up to 75 mph expected. * WHERE...Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins, Bordeaux along Interstate 25 between Chugwater and Wheatland, and the south Laramie Range and adjacent foothills including Interstate 80 between Laramie and Cheyenne. * WHEN...8 PM MST this evening until 11 PM MST Sunday. * 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 north to south oriented sections of roadways. In addition, patchy blowing snow could lead to reduced visibilities and slick spots. 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. && $$ WYZ107-020000- /O.NEW.KCYS.HW.A.0001.210102T1500Z-210103T0000Z/ East Platte County- Including the cities of Wheatland and Guernsey 209 AM MST Fri Jan 1 2021 ...HIGH WIND WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY AFTERNOON... * WHAT...West winds 30 to 45 mph with gusts up to 65 mph possible. * WHERE...East Platte County including Wheatland and Glendo. * WHEN...From Saturday morning through Saturday afternoon. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs, especially on north to south oriented roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ CLH
1 follow-up statement
580 WWUS75 KCYS 012006 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 106 PM MST Fri Jan 1 2021 WYZ107-021200- /O.UPG.KCYS.HW.A.0001.210102T1500Z-210103T0000Z/ /O.EXB.KCYS.HW.W.0001.210102T1500Z-210103T0000Z/ East Platte County- Including the cities of Wheatland and Guernsey 106 PM MST Fri Jan 1 2021 ...HIGH WIND WARNING IN EFFECT FROM 8 AM TO 5 PM MST SATURDAY... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...East Platte County including Guernsey and Wheatland. * WHEN...From 8 AM to 5 PM MST Saturday. * 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 north to south oriented roadways. 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. && $$ WYZ106-110-116-117-021200- /O.CON.KCYS.HW.W.0001.210102T0300Z-210104T0600Z/ Central Laramie Range and Southwest Platte County- North Snowy Range Foothills-South Laramie Range- South Laramie Range Foothills- Including the cities of Bordeaux, Arlington, Elk Mountain, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 106 PM MST Fri Jan 1 2021 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 11 PM MST SUNDAY... * WHAT...West winds 35 to 45 mph with gusts up to 70 mph expected. * WHERE...Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins, Bordeaux along Interstate 25 between Chugwater and Wheatland, and the south Laramie Range and adjacent foothills including Interstate 80 between Laramie and Cheyenne. * WHEN...From 8 PM this evening to 11 PM MST Sunday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs, particularly along north to south oriented roadways. In addition, patchy blowing snow could lead to reduced visibilities and slick spots. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 1, 2:09 AM MST | High Wind Warning | CYS | Albany, Carbon, Converse, Laramie, Platte | 69 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.