Alert archive / Wyoming / High Wind Watches in 2021
High Wind Watch 47, NWS Cheyenne, WY
NWS Cheyenne, WY issued this high wind watch at Dec 7, 2021, 6:45 AM MST for Albany County, Laramie County, Platte County, Wyoming. It took effect at Dec 7, 2021, 8:00 PM MST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 7, 2021, 6:45 AM MST (13:45 UTC)
- In effect from
- Dec 7, 2021, 8:00 PM MST
- Expired
- Dec 7, 2021, 9:11 AM MST
- In force
- 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 13:45 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
Denver, CO (KDNR), launched 12:00Z, 1.8 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
- 2455 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 117 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
825 WWUS75 KCYS 071345 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 645 AM MST Tue Dec 7 2021 WYZ110-080000- /O.EXP.KCYS.HW.W.0053.000000T0000Z-211207T1400Z/ /O.NEW.KCYS.HW.W.0054.211207T1900Z-211209T0900Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 645 AM MST Tue Dec 7 2021 ...HIGH WIND WARNING WILL EXPIRE AT 7 AM MST THIS MORNING... ...NEXT HIGH WIND WARNING IN EFFECT FROM NOON TODAY TO 2 AM MST THURSDAY... * WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph expected this afternoon. Gusts up to 70 MPH on Wednesday. * WHERE...North Snowy Range Foothills including Interstate 80 near Arlington and Elk Mountain. * WHEN...From noon today to 2 AM MST Thursday. * IMPACTS...Mainly to transportation. Strong cross winds 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. && $$ WYZ116-080000- /O.EXP.KCYS.HW.W.0053.000000T0000Z-211207T1400Z/ /O.NEW.KCYS.HW.A.0047.211208T0300Z-211209T0900Z/ South Laramie Range- Including the cities of Buford, Pumpkin Vine, and Vedauwoo 645 AM MST Tue Dec 7 2021 ...HIGH WIND WARNING WILL EXPIRE AT 7 AM MST THIS MORNING... ...HIGH WIND WATCH IN EFFECT FROM THIS EVENING THROUGH LATE WEDNESDAY NIGHT... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...South Laramie Range including the I-80 Summit and Vedauwoo. * WHEN...From this evening through late Wednesday night. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ WYZ117-080000- /O.NEW.KCYS.HW.A.0047.211208T0300Z-211209T0900Z/ South Laramie Range Foothills- Including the cities of Whitaker, Federal, and Horse Creek 645 AM MST Tue Dec 7 2021 ...HIGH WIND WATCH IN EFFECT FROM THIS EVENING THROUGH LATE WEDNESDAY NIGHT... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...South Laramie Range Foothills. * WHEN...From this evening through late Wednesday night. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. 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. && $$ WYZ106-080000- /O.NEW.KCYS.HW.A.0047.211208T1200Z-211209T0900Z/ Central Laramie Range and Southwest Platte County- Including the city of Bordeaux 645 AM MST Tue Dec 7 2021 ...HIGH WIND WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE WEDNESDAY NIGHT... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Central Laramie Range and Southwest Platte County including Interstate 25 near Bordeaux. * WHEN...From late tonight through late Wednesday night. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ Brothers
1 follow-up statement
126 WWUS75 KCYS 071611 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 911 AM MST Tue Dec 7 2021 WYZ116-117-081200- /O.UPG.KCYS.HW.A.0047.211208T0300Z-211209T0900Z/ /O.EXB.KCYS.HW.W.0054.211208T0300Z-211209T1200Z/ South Laramie Range-South Laramie Range Foothills- Including the cities of Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 911 AM MST Tue Dec 7 2021 ...HIGH WIND WARNING IN EFFECT FROM 8 PM THIS EVENING TO 5 AM MST THURSDAY... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...South Laramie Range and South Laramie Range Foothills. * WHEN...From 8 PM this evening to 5 AM MST Thursday. * IMPACTS...Mainly to transportation. Strong cross winds 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. && $$ WYZ106-081200- /O.UPG.KCYS.HW.A.0047.211208T1200Z-211209T0900Z/ /O.EXB.KCYS.HW.W.0054.211208T0900Z-211209T1200Z/ Central Laramie Range and Southwest Platte County- Including the city of Bordeaux 911 AM MST Tue Dec 7 2021 ...HIGH WIND WARNING IN EFFECT FROM 2 AM WEDNESDAY TO 5 AM MST THURSDAY... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Central Laramie Range and Southwest Platte County. * WHEN...From 2 AM Wednesday to 5 AM MST Thursday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ WYZ110-081200- /O.CON.KCYS.HW.W.0054.211207T1900Z-211209T0900Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 911 AM MST Tue Dec 7 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM MST THURSDAY... * WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph expected this afternoon. Gusts up to 70 MPH on Wednesday. * WHERE...North Snowy Range Foothills including Interstate 80 near Arlington and Elk Mountain. * WHEN...From noon today to 2 AM MST Thursday. * IMPACTS...Mainly to transportation. Strong cross winds 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. && $$
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 7, 6:45 AM MST | High Wind Warning | CYS | Albany, Carbon, Converse, Laramie, Platte | 46 hr |
| Dec 7, 1:38 PM MST | Winter Storm Watch | CYS | Albany, Carbon, Converse, Goshen, Laramie, Niobrara and 1 more | 25 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.