Alert archive / Wyoming / High Wind Warnings in 2021

High Wind Warning 39, NWS Cheyenne, WY

November 4, 20214 counties in Wyoming

NWS Cheyenne, WY issued this high wind warning at Nov 4, 2021, 1:30 PM MDT for 4 counties in Wyoming. It took effect at Nov 4, 2021, 6:00 PM MDT. It was in force for 22 hr. 14 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
Nov 4, 2021, 1:30 PM MDT (19:30 UTC)
In effect from
Nov 4, 2021, 6:00 PM MDT
Expired
Nov 5, 2021, 3:55 PM MDT
In force
22 hr
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 19:32 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

TimeReportWhereRemark
Nov 5, 12:20 AM MDTNON-TSTM WND GST 581 Sse Bordeaux, WYBORDEAUX WYDOT SITE. SUSTAINED WINDS 40 MPH.
Nov 5, 12:36 AM MDTHIGH SUST WINDS 401 Ene Buford, WYBUFORD EAST WYDOT SITE. SUSTAINED WINDS ABOVE 40 MPH FOR PAST HOUR. PEAK WIND GUST 57 MPH.
Nov 5, 9:26 AM MDTNON-TSTM WND GST 577 Ese Arlington, WYCOOPER COVE WYDOT SITE. SUSTAINED WINDS 36 MPH.
Nov 5, 10:04 AM MDTNON-TSTM WND GST 601 Nnw Arlington, WYARLINGTON WYDOT SITE. SUSTAINED WINDS 46 MPH. GUST TO 63 MPH AT 1012 AM.
Nov 5, 10:21 AM MDTNON-TSTM WND GST 612 Wnw Buford, WYSHERWOOD UPR SITE.
Nov 5, 10:26 AM MDTNON-TSTM WND GST 602 Ne Granite Springs Re, WYWILDCAT TRAIL WYDOT SITE. SUSTAINED WINDS 40 MPH.
Nov 5, 10:54 AM MDTNON-TSTM WND GST 581 Ene Buford, WYBUFORD EAST WYDOT SITE. SUSTAINED WINDS 45 MPH.
Nov 5, 10:54 AM MDTNON-TSTM WND GST 582 Ne Granite Springs Re, WYWILDCAT TRAIL WYDOT SITE. SUSTAINED WINDS 43 MPH.
Nov 5, 10:54 AM MDTNON-TSTM WND GST 601 Nnw Arlington, WYARLINGTON WYDOT SITE. SUSTAINED WINDS 40 MPH.
Nov 5, 11:04 AM MDTNON-TSTM WND GST 593 Ese Elk Mountain, WYCOUNTY ROAD 402 WYDOT SITE. SUSTAINED WINDS 33 MPH.
Nov 5, 11:12 AM MDTNON-TSTM WND GST 611 Sse Bordeaux, WYBORDEAUX WYDOT SITE. SUSTAINED WINDS 45 MPH.
Nov 5, 11:52 AM MDTNON-TSTM WND GST 582 Ne Granite Springs Re, WYWILDCAT TRAIL WYDOT SITE. SUSTAINED WINDS 42 MPH.
Nov 5, 12:20 PM MDTNON-TSTM WND GST 581 Sse Bordeaux, WYBORDEAUX WYDOT SITE. SUSTAINED WINDS 40 MPH. CORRECTS TIME TO PM.
Nov 5, 12:36 PM MDTHIGH SUST WINDS 401 Ene Buford, WYBUFORD EAST WYDOT SITE. SUSTAINED WINDS ABOVE 40 MPH FOR PAST HOUR. PEAK WIND GUST 57 MPH. CORRECTS TIME TO PM.

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, 7.5 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.

Skew-T log-pSkew-T log-p diagram, Riverton, WY at 12:00Z on 2021-11-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 12:00Z on 2021-11-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1651 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
139 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

292 
WWUS75 KCYS 041930
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
130 PM MDT Thu Nov 4 2021

WYZ106-107-110-116-117-051200-
/O.UPG.KCYS.HW.A.0027.211105T0000Z-211105T1800Z/
/O.NEW.KCYS.HW.W.0039.211105T0000Z-211105T1800Z/
Central Laramie Range and Southwest Platte County-
East Platte County-North Snowy Range Foothills-
South Laramie Range-South Laramie Range Foothills-
Including the cities of Bordeaux, Wheatland, Guernsey, Arlington,
Elk Mountain, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, 
and Horse Creek
130 PM MDT Thu Nov 4 2021

...HIGH WIND WARNING IN EFFECT FROM 6 PM THIS EVENING TO NOON MDT
FRIDAY...

* WHAT...West winds 40 to 50 mph with gusts up to 65 mph 
  expected.

* WHERE...Central Laramie Range and Southwest Platte County, 
  East Platte County, North Snowy Range Foothills, South Laramie 
  Range and South Laramie Range Foothills.

* WHEN...From 6 PM this evening to noon MDT Friday.

* IMPACTS...Mainly to transportation. Strong head winds and 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 near Arlington and Buford, in addition to areas
  surrounding Wheatland along Interstate 25.

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.

&&

$$

NEZ019>021-054-055-096-WYZ108-118-119-051200-
/O.NEW.KCYS.HW.A.0028.211105T0900Z-211105T1800Z/
Scotts Bluff County-Banner County-Morrill County-Kimball County-
Cheyenne County-Southern Sioux County-Goshen County-
Central Laramie County-East Laramie County-
Including the cities of Scottsbluff, Gering, Harrisburg, Angora, 
Bridgeport, Bayard, Redington, Kimball, Sidney, Brownson, Agate, 
Torrington, Cheyenne, and Pine Bluffs
130 PM MDT Thu Nov 4 2021

...HIGH WIND WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
MORNING...

* WHAT...West winds 35 to 45 mph with gusts up to 60 mph 
  possible.

* WHERE...In Wyoming, Goshen County, Central Laramie County and 
  East Laramie County. In Nebraska, Scotts Bluff County, Banner 
  County, Morrill County, Kimball County, Cheyenne County and 
  Southern Sioux County.

* WHEN...From late tonight through Friday morning.

* IMPACTS...Mainly to transportation. Strong head winds and 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.

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.

&&

$$
3 follow-up statements
850 
WWUS75 KCYS 050822
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
222 AM MDT Fri Nov 5 2021

NEZ019>021-054-055-096-WYZ108-118-119-050930-
/O.CAN.KCYS.HW.A.0028.211105T0900Z-211105T1800Z/
Scotts Bluff County-Banner County-Morrill County-Kimball County-
Cheyenne County-Southern Sioux County-Goshen County-
Central Laramie County-East Laramie County-
Including the cities of Scottsbluff, Gering, Harrisburg, Angora, 
Bridgeport, Bayard, Redington, Kimball, Sidney, Brownson, Agate, 
Torrington, Cheyenne, and Pine Bluffs
222 AM MDT Fri Nov 5 2021

...HIGH WIND WATCH IS CANCELLED...

Gusty winds of 35-45mph are possible at times today, but gusts 
above that are not anticipated at this time. Therefore, the High 
Wind Watch has been cancelled.

$$

WYZ106-107-110-116-117-051630-
/O.CON.KCYS.HW.W.0039.000000T0000Z-211105T1800Z/
Central Laramie Range and Southwest Platte County-
East Platte County-North Snowy Range Foothills-
South Laramie Range-South Laramie Range Foothills-
Including the cities of Bordeaux, Wheatland, Guernsey, Arlington,
Elk Mountain, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, 
and Horse Creek
222 AM MDT Fri Nov 5 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY...

* WHAT...West winds 25 to 35 mph with gusts up to 65 mph.

* WHERE...South Laramie Range, South Laramie Range Foothills, 
  East Platte County, Central Laramie Range and Southwest Platte 
  County and North Snowy Range Foothills.

* WHEN...Until noon MDT today.

* IMPACTS...Mainly to transportation. Strong head winds and 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 near Arlington and Buford, in addition to areas
  surrounding Wheatland 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.

&&

$$

BW
876 
WWUS75 KCYS 051706
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
1106 AM MDT Fri Nov 5 2021

WYZ107-051815-
/O.CAN.KCYS.HW.W.0039.000000T0000Z-211105T1800Z/
East Platte County-
Including the cities of Wheatland and Guernsey
1106 AM MDT Fri Nov 5 2021

...HIGH WIND WARNING IS CANCELLED...

Strong winds have stayed below critical levels. Therefore...the
High Wind Warning has been cancelled.

$$

WYZ106-110-116-117-052200-
/O.EXT.KCYS.HW.W.0039.000000T0000Z-211105T2200Z/
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
1106 AM MDT Fri Nov 5 2021

...HIGH WIND WARNING NOW IN EFFECT UNTIL 4 PM MDT THIS
AFTERNOON...

* WHAT...West winds 25 to 35 mph with gusts up to 65 mph.

* WHERE...South Laramie Range, South Laramie Range Foothills, 
  East Platte County, Central Laramie Range and Southwest Platte 
  County and North Snowy Range Foothills.

* WHEN...Until 4 PM MDT this afternoon.

* IMPACTS...Mainly to transportation. Strong head winds and 
  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 near Arlington and Buford, in addition to areas 
  surrounding Wheatland 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.

&&

$$
557 
WWUS75 KCYS 052155 AAA
NPWCYS

URGENT - WEATHER MESSAGE...UPDATED
National Weather Service Cheyenne WY
355 PM MDT Fri Nov 5 2021

WYZ106-110-116-117-052300-
/O.CAN.KCYS.HW.W.0039.000000T0000Z-211105T2200Z/
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
355 PM MDT Fri Nov 5 2021

...HIGH WIND WARNING IS CANCELLED...

Periods of high winds occurred overnight and again this morning
but high wind gusts and sustained winds have decreased over the
past couple hours in the wind prone zones. Elevated winds will 
still occur in the 30 to 40 mph range with occasional gusts to 50 
mph late afternoon to early evening tonight. Winds will continue 
to decrease overnight.

$$

Allen

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 4, 2:37 AM MDTHigh Wind WatchCYSAlbany, Carbon, Laramie, Platte11 hr
Nov 4, 1:30 PM MDTHigh Wind WatchCYSGoshen, Laramie13 hr

Nearby

High Wind Warnings in Wyoming, 2021Every high wind warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.