Alert archive / Wyoming / High Wind Watches in 2021
High Wind Watch 36, NWS Cheyenne, WY
NWS Cheyenne, WY issued this high wind watch at Nov 17, 2021, 12:21 PM MST for 4 counties in Wyoming. It took effect at Nov 18, 2021, 5:00 PM MST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Nov 17, 2021, 12:21 PM MST (19:21 UTC)
- In effect from
- Nov 18, 2021, 5:00 PM MST
- Expired
- Nov 18, 2021, 1:06 AM MST
- 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 19:20 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, 7.4 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
- 1922 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
481 WWUS75 KCYS 171921 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 1221 PM MST Wed Nov 17 2021 WYZ106-110-181100- /O.NEW.KCYS.HW.A.0036.211119T0000Z-211119T2100Z/ Central Laramie Range and Southwest Platte County- North Snowy Range Foothills- Including the cities of Bordeaux, Arlington, and Elk Mountain 1221 PM MST Wed Nov 17 2021 ...HIGH WIND WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY AFTERNOON... * WHAT...West to southwest winds 35 to 45 mph with gusts up to 65 mph possible. * WHERE...North Snowy Range Foothills, including Elk Mountain and Arlington. Southwest Platte County, including Bordeaux. * WHEN...5 PM Thursday evening until 2 PM Friday Afternoon. * IMPACTS...Mainly to transportation. Strong cross winds are extremely dangerous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs and these areas, especially between mile markers 240 and 290 along Interstate 80, and mile markers 60 and 80 along Interstate 25. 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. && $$ TT
1 follow-up statement
328 WWUS75 KCYS 180806 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 106 AM MST Thu Nov 18 2021 WYZ106-110-190000- /O.UPG.KCYS.HW.A.0036.211119T0000Z-211119T2100Z/ /O.NEW.KCYS.HW.W.0044.211119T0000Z-211119T2100Z/ Central Laramie Range and Southwest Platte County- North Snowy Range Foothills- Including the cities of Bordeaux, Arlington, and Elk Mountain 106 AM MST Thu Nov 18 2021 ...HIGH WIND WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 2 PM MST FRIDAY... * WHAT...West winds 35 to 45 mph with gusts up to 70 mph expected. * WHERE...Central Laramie Range and Southwest Platte County and North Snowy Range Foothills. * WHEN...From 5 PM this afternoon to 2 PM MST Friday. * IMPACTS...Mainly to transportation. Strong cross winds are extremely dangerous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs and these areas, especially between mile markers 240 and 290 along Interstate 80, and mile markers 60 and 80 along Interstate 25. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WYZ116-117-190000- /O.NEW.KCYS.HW.A.0037.211119T0400Z-211119T1600Z/ South Laramie Range-South Laramie Range Foothills- Including the cities of Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, and Horse Creek 106 AM MST Thu Nov 18 2021 ...HIGH WIND WATCH IN EFFECT FROM THIS EVENING THROUGH FRIDAY MORNING... * WHAT...West winds 30 to 40 mph with gusts up to 70 mph possible. * WHERE...South Laramie Range and South Laramie Range Foothills. * WHEN...From this evening through Friday morning. * IMPACTS...Mainly to transportation. Strong cross winds are extremely dangerous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs and these areas, especially between mile markers 320 and 355 along Interstate 80. 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. && $$
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.