Alert archive / Wyoming / High Wind Warnings in 2021

High Wind Warning 50, NWS Cheyenne, WY

November 28, 2021Albany County, Laramie County, Platte County, Wyoming

NWS Cheyenne, WY issued this high wind warning at Nov 28, 2021, 1:07 PM MST for Albany County, Laramie County, Platte County, Wyoming. It took effect at Nov 28, 2021, 7:00 PM MST. It was in force for 13 hr. 8 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 28, 2021, 1:07 PM MST (20:07 UTC)
In effect from
Nov 28, 2021, 7:00 PM MST
Expired
Nov 29, 2021, 8:00 AM MST
In force
13 hr
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 20:08 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 28, 11:36 PM MSTTSTM WND GST 60Bordeaux, WY
Nov 29, 12:12 AM MSTNON-TSTM WND GST 651 Sse Bordeaux, WYMESONET STATION KBRX 1.4 S BORDEAUX (WYDOT).
Nov 29, 1:26 AM MSTNON-TSTM WND GST 641 Sse Bordeaux, WYMESONET STATION KBRX 1.4 S BORDEAUX (WYDOT).
Nov 29, 2:32 AM MSTNON-TSTM WND GST 611 Sse Bordeaux, WYMESONET STATION KBRX 1.4 S BORDEAUX (WYDOT).
Nov 29, 3:42 AM MSTNON-TSTM WND GST 651 Sse Bordeaux, WYMESONET STATION KBRX 1.4 S BORDEAUX (WYDOT).
Nov 29, 4:02 AM MSTNON-TSTM WND GST 651 Sse Bordeaux, WYMESONET STATION KBRX 1.4 S BORDEAUX (WYDOT).
Nov 29, 5:00 AM MSTNON-TSTM WND GST 631 Sse Bordeaux, WYMESONET STATION KBRX 1.4 S BORDEAUX (WYDOT).
Nov 29, 6:12 AM MSTNON-TSTM WND GST 601 Sse Bordeaux, WYMESONET STATION KBRX 1.4 S BORDEAUX (WYDOT).

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 8.1 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.

Skew-T log-pSkew-T log-p diagram, Denver, CO at 12:00Z on 2021-11-28Temperature 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, Denver, CO at 12:00Z on 2021-11-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 204 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
2227 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
204 m²/s²
0-3 km storm-relative helicity
299 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

568 
WWUS75 KCYS 282007
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
107 PM MST Sun Nov 28 2021

WYZ106-290600-
/O.UPG.KCYS.HW.A.0042.211129T0100Z-211129T1600Z/
/O.NEW.KCYS.HW.W.0050.211129T0200Z-211129T1500Z/
Central Laramie Range and Southwest Platte County-
Including the city of Bordeaux
107 PM MST Sun Nov 28 2021

...HIGH WIND WARNING IN EFFECT FROM 7 PM THIS EVENING TO 8 AM MST
MONDAY...

* WHAT...West winds 30 to 40 mph with gusts up to 65 mph 
  expected.

* WHERE...Central Laramie Range and Southwest Platte County
  including Bordeaux.

* WHEN...From 7 PM this evening to 8 AM MST Monday.

* 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.

&&

$$

WYZ110-290100-
/O.CON.KCYS.HW.W.0049.000000T0000Z-211129T0100Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
107 PM MST Sun Nov 28 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

* WHAT...West winds 30 to 40 mph with gusts up to 60 mph 
  expected.

* WHERE...North Snowy Range Foothills including Arlington and 
  Elk Mountain.

* WHEN...Until 6 PM MST this evening.

* 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.

&&

$$

Brothers
3 follow-up statements
821 
WWUS75 KCYS 290410
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
910 PM MST Sun Nov 28 2021

WYZ106-291500-
/O.CON.KCYS.HW.W.0050.000000T0000Z-211129T1500Z/
Central Laramie Range and Southwest Platte County-
Including the city of Bordeaux
910 PM MST Sun Nov 28 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM MST MONDAY...

* WHAT...West winds 35 to 45 mph with gusts up to 65 mph 
  expected.

* WHERE...Central Laramie Range including Bordeaux along
  Interstate 25 between Chugwater and Wheatland.

* WHEN...Until 8 AM MST Monday.

* 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.

&&

$$

CLH
817 
WWUS75 KCYS 291015
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
315 AM MST Mon Nov 29 2021

WYZ106-291500-
/O.CON.KCYS.HW.W.0050.000000T0000Z-211129T1500Z/
Central Laramie Range and Southwest Platte County-
Including the city of Bordeaux
315 AM MST Mon Nov 29 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM MST THIS
MORNING...

* WHAT...West winds 35 to 45 mph with gusts up to 65 mph 
  expected.

* WHERE...Central Laramie Range including Bordeaux along 
  Interstate 25 between Chugwater and Wheatland.

* WHEN...Until 8 AM MST Monday.

* 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...

People should avoid being outside in forested areas and around
trees and branches. Use caution if you must drive.

&&

$$

WYZ116-292300-
/O.NEW.KCYS.HW.A.0043.211130T0100Z-211130T1000Z/
South Laramie Range-
Including the cities of Buford, Pumpkin Vine, and Vedauwoo
315 AM MST Mon Nov 29 2021

...HIGH WIND WATCH IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...

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

* WHERE...South Laramie Range including Vedauwoo and the I-80
  Summit. 

* WHEN...From this evening through late tonight.

* 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.

&&

$$
552 
WWUS75 KCYS 291457
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
757 AM MST Mon Nov 29 2021

WYZ106-291600-
/O.EXP.KCYS.HW.W.0050.000000T0000Z-211129T1500Z/
Central Laramie Range and Southwest Platte County-
Including the city of Bordeaux
757 AM MST Mon Nov 29 2021

...HIGH WIND WARNING WILL EXPIRE AT 8 AM MST THIS MORNING...

Wind gusts near Bordeaux have decreased to around 45 MPH over the
past hour and should continue to decrease later this morning.
Therefore, the High Wind Warning will be allowed to expire.
However, wind gusts may remain elevated around 45-50 MPH through
10 AM MST, especially between Chugwater and Wheatland.

$$

WYZ116-300000-
/O.CON.KCYS.HW.A.0043.211130T0100Z-211130T1000Z/
South Laramie Range-
Including the cities of Buford, Pumpkin Vine, and Vedauwoo
757 AM MST Mon Nov 29 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM 6 PM MST THIS EVENING
THROUGH LATE TONIGHT...

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

* WHERE...South Laramie Range including Vedauwoo and the I-80 
  Summit.

* WHEN...From this evening through late tonight.

* 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

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 28, 2:23 AM MSTHigh Wind WatchCYSAlbany, Laramie, Platte11 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.