Alert archive / Wyoming / High Wind Watches in 2021
High Wind Watch 21, NWS Cheyenne, WY
NWS Cheyenne, WY issued this high wind watch at Aug 18, 2021, 2:19 PM MDT for 4 counties in Wyoming. It took effect at Aug 20, 2021, 12:00 AM MDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Aug 18, 2021, 2:19 PM MDT (20:19 UTC)
- In effect from
- Aug 20, 2021, 12:00 AM MDT
- Expired
- Aug 19, 2021, 1:59 PM MDT
- In force
- Issued by
- NWS Cheyenne, WY
Counties Albany County, WY, Carbon County, WY, Laramie County, WY, Platte County, WY
The radar
The Cheyenne radar (KCYS), 88 km from the middle of the area, began a volume at 20:22 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
Riverton, WY (KRIW), launched 12:00Z, 8.3 hours before the alert went out and 278 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
- 2061 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 168 m²/s²
- 0-3 km storm-relative helicity
- 218 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
328 WWUS75 KCYS 182019 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 219 PM MDT Wed Aug 18 2021 WYZ110-116-191200- /O.NEW.KCYS.HW.A.0021.210820T0600Z-210820T1500Z/ North Snowy Range Foothills-South Laramie Range- Including the cities of Arlington, Elk Mountain, Buford, Pumpkin Vine, and Vedauwoo 219 PM MDT Wed Aug 18 2021 ...HIGH WIND WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY MORNING... * WHAT...West winds 35 to 45 mph with gusts up to 70 mph possible. * WHERE...North Snowy Range Foothills and South Laramie Range. * WHEN...From late Thursday night through Friday morning. * IMPACTS...Travel could be difficult, especially for high profile vehicles. Light weight and high profile vehicles and those towing camper trailers are particularly at risk. 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. && $$ WYZ106-117-191200- /O.NEW.KCYS.HW.A.0021.210820T0900Z-210820T1500Z/ Central Laramie Range and Southwest Platte County- South Laramie Range Foothills- Including the cities of Bordeaux, Whitaker, Federal, and Horse Creek 219 PM MDT Wed Aug 18 2021 ...HIGH WIND WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY MORNING... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Central Laramie Range and Southwest Platte County and South Laramie Range Foothills. * WHEN...From late Thursday night through Friday morning. * IMPACTS...Travel could be difficult, especially for high profile vehicles. Light weight and high profile vehicles and those towing camper trailers are particularly at risk. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$
2 follow-up statements
567 WWUS75 KCYS 190810 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 210 AM MDT Thu Aug 19 2021 WYZ110-192300- /O.UPG.KCYS.HW.A.0021.210820T0600Z-210820T1500Z/ /O.NEW.KCYS.HW.W.0030.210820T0600Z-210820T1800Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 210 AM MDT Thu Aug 19 2021 ...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT FRIDAY... * WHAT...West winds 35 to 45 mph with gusts up to 65 mph. * WHERE...North Snowy Range Foothills, including Interstate 80 between mile markers 235 to 295. * WHEN...Midnight tonight through noon Friday. * 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. && $$ WYZ116-192300- /O.CON.KCYS.HW.A.0021.210820T0600Z-210820T1500Z/ South Laramie Range- Including the cities of Buford, Pumpkin Vine, and Vedauwoo 210 AM MDT Thu Aug 19 2021 ...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... * WHAT...West winds 35 to 45 mph with gusts up to 65 mph possible. * WHERE...Southern Laramie Range. * WHEN...From late Thursday night through Friday morning. * IMPACTS...Mainly to transportation. Strong crosswinds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Watch means there is the potential for a hazardous high wind event. Sustained winds of at least 40 mph...or gusts of 58 mph or stronger may occur. Continue to monitor the latest forecasts. && $$ WYZ106-117-192300- /O.CON.KCYS.HW.A.0021.210820T0900Z-210820T1500Z/ Central Laramie Range and Southwest Platte County- South Laramie Range Foothills- Including the cities of Bordeaux, Whitaker, Federal, and Horse Creek 210 AM MDT Thu Aug 19 2021 ...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Central Laramie Range and Southwest Platte County and South Laramie Range Foothills. * WHEN...From late Thursday night through Friday morning. * 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 Watch means there is the potential for a hazardous high wind event. Sustained winds of at least 40 mph...or gusts of 58 mph or stronger may occur. Continue to monitor the latest forecasts. && $$
674 WWUS75 KCYS 191959 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 159 PM MDT Thu Aug 19 2021 WYZ106-192100- /O.CAN.KCYS.HW.A.0021.210820T0900Z-210820T1500Z/ Central Laramie Range and Southwest Platte County- Including the city of Bordeaux 159 PM MDT Thu Aug 19 2021 ...HIGH WIND WATCH IS CANCELLED... Although gusty winds over 40 mph are likely during this time period, high winds over 60 mph are no longer expected. $$ WYZ116-201200- /O.UPG.KCYS.HW.A.0021.210820T0600Z-210820T1500Z/ /O.EXA.KCYS.HW.W.0030.210820T0600Z-210820T1800Z/ South Laramie Range- Including the cities of Buford, Pumpkin Vine, and Vedauwoo 159 PM MDT Thu Aug 19 2021 ...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT FRIDAY... * WHAT...West winds 35 to 45 mph with gusts up to 65 mph. * WHERE...South Laramie Range. * WHEN...From midnight tonight to noon MDT Friday. * 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. && $$ WYZ117-201200- /O.UPG.KCYS.HW.A.0021.210820T0900Z-210820T1500Z/ /O.EXA.KCYS.HW.W.0030.210820T0600Z-210820T1800Z/ South Laramie Range Foothills- Including the cities of Whitaker, Federal, and Horse Creek 159 PM MDT Thu Aug 19 2021 ...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT FRIDAY... * WHAT...West winds 35 to 45 mph with gusts up to 65 mph. * WHERE...South Laramie Range Foothills. * WHEN...From midnight tonight to noon MDT Friday. * IMPACTS...Mainly to transportation. Strong crosswinds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ WYZ110-201200- /O.CON.KCYS.HW.W.0030.210820T0600Z-210820T1800Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 159 PM MDT Thu Aug 19 2021 ...HIGH WIND WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT FRIDAY... * WHAT...West winds 35 to 45 mph with gusts up to 65 mph. * WHERE...North Snowy Range Foothills, including Interstate 80 between mile markers 235 to 295. * WHEN...Midnight tonight through noon Friday. * 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. && $$
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.