Alert archive / Wyoming / High Wind Warnings in 2021

High Wind Warning 60, NWS Cheyenne, WY

December 17, 20214 counties in Wyoming

NWS Cheyenne, WY issued this high wind warning at Dec 17, 2021, 3:24 AM MST for 4 counties in Wyoming. It took effect at Dec 17, 2021, 9:00 PM MST. It was in force for 50 hr. 9 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
Dec 17, 2021, 3:24 AM MST (10:24 UTC)
In effect from
Dec 17, 2021, 9:00 PM MST
Expired
Dec 19, 2021, 11:00 PM MST
In force
50 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 10:28 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
Dec 18, 5:16 PM MSTHIGH SUST WINDS 427 Nw Elk Mountain, WYHALLECK RIDGE WYDOT SITE. SUSTAINED WINDS GREATER THAN 40 MPH FOR PAST HOUR. SUSTAINED WINDS RANGED FROM 40 TO 45 MPH WITH PEAK GUST OF 57 MPH.
Dec 18, 9:42 PM MSTNON-TSTM WND GST 591 Nnw Arlington, WYARLINGTON WYDOT SITE. SUSTAINED WINDS OVER 40 MPH FOR PAST HOUR AS WELL.
Dec 18, 10:22 PM MSTHIGH SUST WINDS 401 Nnw Arlington, WYARLINGTON WYDOT SITE. SUSTAINED WINDS 40 MPH OR HIGHER FOR PAST HOUR. PEAK GUST 57 MPH.
Dec 19, 12:52 AM MSTNON-TSTM WND GST 601 Sse Bordeaux, WYMESONET STATION KBRX 1.4 S BORDEAUX (WYDOT).
Dec 19, 5:22 AM MSTNON-TSTM WND GST 581 Nnw Arlington, WYMESONET STATION KARL 0.6 NW ARLINGTON (WYDOT).
Dec 19, 11:22 AM MSTHIGH SUST WINDS 417 Nw Elk Mountain, WYWYDOT SENSOR AT HALLECK RIDGE. AVERAGE SUSTAINED WINDS OVER 40 MPH FOR ONE HOUR. PEAK GUST OF 54 MPH.
Dec 19, 2:22 PM MSTNON-TSTM WND GST 587 Nw Elk Mountain, WYWYDOT SENSOR AT HALLECK RIDGE. SUSTAINED WINDS OF 40 TO 43 MPH.
Dec 19, 2:28 PM MSTNON-TSTM WND GST 597 Nw Elk Mountain, WYWYDOT SENSOR AT HALLECK RIDGE. SUSTAINED WINDS OF 50 MPH.
Dec 19, 2:44 PM MSTNON-TSTM WND GST 631 Sse Bordeaux, WYWYDOT SENSOR AT BORDEAUX. SUSTAINED WINDS OF 48 TO 51 MPH.

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 00:00Z, 10.4 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.

Skew-T log-pSkew-T log-p diagram, Riverton, WY at 00:00Z on 2021-12-17Temperature 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 00:00Z on 2021-12-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 square meters per square second.1939587897Sfc1 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
1830 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
-10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

567 
WWUS75 KCYS 171024
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
324 AM MST Fri Dec 17 2021

WYZ110-180000-
/O.NEW.KCYS.HW.W.0060.211218T0400Z-211220T0000Z/
/O.CON.KCYS.HW.W.0059.000000T0000Z-211217T1800Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
324 AM MST Fri Dec 17 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
...HIGH WIND WARNING IN EFFECT FROM 9 PM THIS EVENING TO 5 PM MST
SUNDAY...

* WHAT...West to southwest winds 35 to 50 MPH with gusts up to 75
  MPH possible. 

* WHERE...North Snowy Range Foothills including Arlington and Elk
  Mountain along Interstate 80 between Laramie and Rawlins. 

* WHEN...Two periods of strong winds, the first ending at 11 AM
  MST this morning. After a brief lull, a prolonged period of
  strong winds will occur from 9 PM MST today through at least 5 
  PM MST Sunday. The strongest winds are expected from Saturday 
  afternoon through early Sunday. 

* IMPACTS...Mainly to transportation. Strong 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 north to south oriented 
  roadways. 

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.

&&

$$

WYZ106-180000-
/O.NEW.KCYS.HW.W.0060.211218T1200Z-211220T0000Z/
/O.CON.KCYS.HW.W.0059.000000T0000Z-211217T1800Z/
Central Laramie Range and Southwest Platte County-
Including the city of Bordeaux
324 AM MST Fri Dec 17 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
...HIGH WIND WARNING IN EFFECT FROM 5 AM SATURDAY TO 5 PM MST
SUNDAY...

* WHAT...West winds 35 to 50 MPH with gusts up to 75 MPH possible.

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

* WHEN...Two periods of strong winds, the first ending at 11 AM
  MST this morning. A second and more prolonged period of strong
  winds will occur from 5 AM MST Saturday through at least 5 PM
  MST Sunday. The strongest winds are expected from late Saturday
  through early Sunday. 

* IMPACTS...Mainly to transportation. Strong 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 north to south oriented 
  roadways. 

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
8 follow-up statements
415 
WWUS75 KCYS 171801
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
1101 AM MST Fri Dec 17 2021

WYZ110-180215-
/O.EXP.KCYS.HW.W.0059.000000T0000Z-211217T1800Z/
/O.CON.KCYS.HW.W.0060.211218T0400Z-211220T0000Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
1101 AM MST Fri Dec 17 2021

...THE CURRENT HIGH WIND WARNING HAS BEEN ALLOWED TO EXPIRE...

...ANOTHER HIGH WIND WARNING WILL GO INTO EFFECT FROM 9 PM THIS 
EVENING TO 5 PM MST SUNDAY...

* WHAT...West to southwest winds 35 to 50 MPH with gusts up to 
  75 MPH possible. 

* WHERE...North Snowy Range Foothills including Arlington and 
  Elk Mountain along Interstate 80 between Laramie and Rawlins. 

* WHEN...Winds will continue to dissipate through this afternoon
  before ramping back up this evening. After this brief lull, a
  prolonged period of strong winds will occur from 9 PM MST
  tonight through at least 5 PM MST Sunday. The strongest winds 
  are expected from Saturday afternoon through early Sunday. 

* IMPACTS...Mainly to transportation. Strong 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 north to south oriented 
  roadways. 

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.

&&

$$

WYZ106-180215-
/O.EXP.KCYS.HW.W.0059.000000T0000Z-211217T1800Z/
/O.CON.KCYS.HW.W.0060.211218T1200Z-211220T0000Z/
Central Laramie Range and Southwest Platte County-
Including the city of Bordeaux
1101 AM MST Fri Dec 17 2021

...THE CURRENT HIGH WIND WARNING HAS BEEN ALLOWED TO EXPIRE..

...ANOTHER HIGH WIND WARNING WILL GO INTO EFFECT FROM 5 AM 
SATURDAY TO 5 PM MST SUNDAY...

* WHAT...West winds 35 to 50 MPH with gusts up to 75 MPH 
  possible.

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

* WHEN...Winds will continue to dissipate through this afternoon
  before ramping back up overnight. A more prolonged period of 
  strong winds will occur from 5 AM MST Saturday through at least 
  5 PM MST Sunday. The strongest winds are expected from late 
  Saturday through early Sunday. 

* IMPACTS...Mainly to transportation. Strong 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 north to south oriented 
  roadways. 

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.

&&

$$

BW
510 
WWUS75 KCYS 172148
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
248 PM MST Fri Dec 17 2021

WYZ110-181200-
/O.CON.KCYS.HW.W.0060.211218T0400Z-211220T0000Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
248 PM MST Fri Dec 17 2021

...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO
5 PM MST SUNDAY...

* WHAT...West to southwest winds 35 to 50 MPH with gusts up to 
  75 MPH possible. 

* WHERE...North Snowy Range Foothills including Arlington and 
  Elk Mountain along Interstate 80 between Laramie and Rawlins. 

* WHEN...Winds will continue to dissipate through this afternoon 
  before ramping back up this evening. After this brief lull, a 
  prolonged period of strong winds will occur from 9 PM MST 
  tonight through at least 5 PM MST Sunday. The strongest winds 
  are expected from Saturday afternoon through early Sunday. 

* IMPACTS...Mainly to transportation. Strong 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 north to south oriented 
  roadways. 

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.

&&

$$

WYZ106-181200-
/O.CON.KCYS.HW.W.0060.211218T1200Z-211220T0000Z/
Central Laramie Range and Southwest Platte County-
Including the city of Bordeaux
248 PM MST Fri Dec 17 2021

...HIGH WIND WARNING REMAINS IN EFFECT FROM 5 AM SATURDAY TO 5 PM
MST SUNDAY...

* WHAT...West winds 35 to 50 MPH with gusts up to 75 MPH 
  possible. 

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

* WHEN...Winds will continue to dissipate through this afternoon 
  before ramping back up overnight. A more prolonged period of 
  strong winds will occur from 5 AM MST Saturday through at 
  least 5 PM MST Sunday. The strongest winds are expected from 
  late Saturday through early Sunday. 

* IMPACTS...Mainly to transportation. Strong 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 north to south oriented 
  roadways. 

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.

&&

$$

BW
390 
WWUS75 KCYS 181013
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
313 AM MST Sat Dec 18 2021

WYZ110-190000-
/O.CON.KCYS.HW.W.0060.000000T0000Z-211220T0000Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
313 AM MST Sat Dec 18 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY...

* WHAT...West to southwest winds 35 to 50 MPH with gusts up to 
  75 MPH possible.

* WHERE...North Snowy Range Foothills including Arlington and 
  Elk Mountain along Interstate 80 between Laramie and Rawlins.

* WHEN...Until at least 5 PM MST Sunday. The strongest winds are
  expected this evening through early Sunday morning. Winds could
  persist into Sunday night. 

* IMPACTS...Mainly to transportation. Strong 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 north to south oriented 
  roadways.

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.

&&

$$

WYZ106-190000-
/O.CON.KCYS.HW.W.0060.211218T1200Z-211220T0000Z/
Central Laramie Range and Southwest Platte County-
Including the city of Bordeaux
313 AM MST Sat Dec 18 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY...

* WHAT...West winds 35 to 50 MPH with gusts up to 75 MPH 
  possible.

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

* WHEN...Until at least 5 PM MST Sunday. The strongest winds are
  expected this evening through early Sunday morning. Winds could
  persist into Sunday night. 

* IMPACTS...Mainly to transportation. Strong 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 north to south oriented 
  roadways.

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.

&&

$$

WYZ101-107-190000-
/O.NEW.KCYS.HW.A.0051.211219T0600Z-211220T0000Z/
Converse County Lower Elevations-East Platte County-
Including the cities of Douglas, Glenrock, Bill, Deer Creek, 
Wheatland, and Guernsey
313 AM MST Sat Dec 18 2021

...HIGH WIND WATCH IN EFFECT FROM THIS EVENING THROUGH SUNDAY
AFTERNOON...

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

* WHERE...Converse and eastern Platte counties including the
  cities of Douglas, Glendo, and Wheatland. 

* WHEN...11 PM MST this evening until 5 PM MST Sunday. 

* IMPACTS...Mainly to transportation. Strong 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 north to south oriented 
  roadways.

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.

&&

$$

CLH
748 
WWUS75 KCYS 182059
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
159 PM MST Sat Dec 18 2021

WYZ110-191100-
/O.EXT.KCYS.HW.W.0060.000000T0000Z-211220T0600Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
159 PM MST Sat Dec 18 2021

...HIGH WIND WARNING NOW IN EFFECT UNTIL 11 PM MST SUNDAY...

* WHAT...West to southwest winds 35 to 50 MPH with gusts up to 
  75 MPH possible.

* WHERE...North Snowy Range Foothills including Arlington and 
  Elk Mountain along Interstate 80 between Laramie and Rawlins.

* WHEN...Until 11 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong 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 north to south oriented 
  roadways.

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.



&&

$$

WYZ106-191100-
/O.EXT.KCYS.HW.W.0060.000000T0000Z-211220T0600Z/
Central Laramie Range and Southwest Platte County-
Including the city of Bordeaux
159 PM MST Sat Dec 18 2021

...HIGH WIND WARNING NOW IN EFFECT UNTIL 11 PM MST SUNDAY...

* WHAT...West winds 35 to 50 MPH with gusts up to 75 MPH 
  possible.

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

* WHEN...Until 11 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong 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 north to south oriented 
  roadways.

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.


&&

$$

WYZ101-107-191100-
/O.EXT.KCYS.HW.A.0051.211219T1200Z-211220T0000Z/
Converse County Lower Elevations-East Platte County-
Including the cities of Douglas, Glenrock, Bill, Deer Creek, 
Wheatland, and Guernsey
159 PM MST Sat Dec 18 2021

...HIGH WIND WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
AFTERNOON...

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

* WHERE...Converse and eastern Platte counties including the 
  cities of Douglas, Glendo, and Wheatland.

* WHEN...5 am Sunday through 5 pm Sunday.

* IMPACTS...Mainly to transportation. Strong 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 north to south oriented 
  roadways.

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.

&&

$$
785 
WWUS75 KCYS 190926
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
226 AM MST Sun Dec 19 2021

WYZ101-107-191030-
/O.CAN.KCYS.HW.A.0051.211219T1200Z-211220T0000Z/
Converse County Lower Elevations-East Platte County-
Including the cities of Douglas, Glenrock, Bill, Deer Creek, 
Wheatland, and Guernsey
226 AM MST Sun Dec 19 2021

...HIGH WIND WATCH IS CANCELLED...

West winds gusting 45 to 55 MPH are still expected through this
afternoon. However, the potential for gusts in excess of 60 MPH
appears low. 

$$

WYZ110-200600-
/O.CON.KCYS.HW.W.0060.000000T0000Z-211220T0600Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
226 AM MST Sun Dec 19 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* WHAT...West to southwest winds 35 to 50 MPH with gusts up to 65 
  MPH possible.

* WHERE...North Snowy Range Foothills including Arlington and 
  Elk Mountain along Interstate 80 between Laramie and Rawlins.

* WHEN...Until 11 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong 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 north to south oriented 
  roadways.

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.

&&

$$

WYZ106-200600-
/O.CON.KCYS.HW.W.0060.000000T0000Z-211220T0600Z/
Central Laramie Range and Southwest Platte County-
Including the city of Bordeaux
226 AM MST Sun Dec 19 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* WHAT...West winds 35 to 50 MPH with gusts up to 65 MPH 
  possible.

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

* WHEN...Until 11 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong 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 north to south oriented 
  roadways.

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
697 
WWUS75 KCYS 192057
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
157 PM MST Sun Dec 19 2021

WYZ110-200600-
/O.CON.KCYS.HW.W.0060.000000T0000Z-211220T0600Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
157 PM MST Sun Dec 19 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

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

* WHERE...North Snowy Range Foothills including Arlington and 
  Elk Mountain along Interstate 80 between Laramie and Rawlins.

* WHEN...Until 11 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong 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 north to south oriented 
  roadways.

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.

&&

$$

WYZ106-200600-
/O.CON.KCYS.HW.W.0060.000000T0000Z-211220T0600Z/
Central Laramie Range and Southwest Platte County-
Including the city of Bordeaux
157 PM MST Sun Dec 19 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

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

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

* WHEN...Until 11 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong 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 north to south oriented 
  roadways.

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.

&&

$$
341 
WWUS75 KCYS 200417
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
917 PM MST Sun Dec 19 2021

WYZ110-201230-
/O.NEW.KCYS.HW.A.0052.211220T1800Z-211221T1200Z/
/O.CON.KCYS.HW.W.0060.000000T0000Z-211220T0600Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
917 PM MST Sun Dec 19 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...
...HIGH WIND WATCH IN EFFECT FROM MONDAY MORNING THROUGH LATE
MONDAY NIGHT...

* WHAT...For the High Wind Warning, southwest winds 35 to 40 mph
  with gusts up to 60 mph. For the High Wind Watch, southwest 
  winds 35 to 45 mph with gusts up to 70 mph possible.

* WHERE...North Snowy Range Foothills.

* WHEN...For the High Wind Warning, until 11 PM MST this 
  evening. For the High Wind Watch, from Monday morning through 
  late Monday night.

* IMPACTS...Mainly to transportation. Strong 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 north to south oriented 
  roadways.

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.

&&

$$

WYZ106-201230-
/O.NEW.KCYS.HW.A.0052.211220T1800Z-211221T1200Z/
/O.CON.KCYS.HW.W.0060.000000T0000Z-211220T0600Z/
Central Laramie Range and Southwest Platte County-
Including the city of Bordeaux
917 PM MST Sun Dec 19 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...
...HIGH WIND WATCH IN EFFECT FROM MONDAY MORNING THROUGH LATE
MONDAY NIGHT...

* WHAT...For the High Wind Warning, west winds 30 to 40 mph with
  gusts up to 60 mph. For the High Wind Watch, southwest winds 30
  to 40 mph with gusts up to 70 mph possible.

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

* WHEN...For the High Wind Warning, until 11 PM MST this 
  evening. For the High Wind Watch, from Monday morning through 
  late Monday night.

* IMPACTS...Mainly to transportation. Strong 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 north to south oriented 
  roadways.

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.

&&

$$
068 
WWUS75 KCYS 200542
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
1042 PM MST Sun Dec 19 2021

WYZ110-201345-
/O.EXP.KCYS.HW.W.0060.000000T0000Z-211220T0600Z/
/O.CON.KCYS.HW.A.0052.211220T1800Z-211221T1200Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
1042 PM MST Sun Dec 19 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH
LATE MONDAY NIGHT...
...HIGH WIND WARNING WILL EXPIRE AT 11 PM MST THIS EVENING...

* WHAT...Southwest winds 35 to 45 mph with gusts up to 70 mph 
  possible Monday afternoon and evening.

* WHERE...North Snowy Range Foothills.

* WHEN...For the High Wind Warning, until 11 PM MST this 
  evening. For the High Wind Watch, from Monday morning through 
  late Monday night.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

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.

&&

$$

WYZ106-201345-
/O.EXP.KCYS.HW.W.0060.000000T0000Z-211220T0600Z/
/O.CON.KCYS.HW.A.0052.211220T1800Z-211221T1200Z/
Central Laramie Range and Southwest Platte County-
Including the city of Bordeaux
1042 PM MST Sun Dec 19 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH
LATE MONDAY NIGHT...
...HIGH WIND WARNING WILL EXPIRE AT 11 PM MST THIS EVENING...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 70 mph 
  possible Monday afternoon and evening.

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

* WHEN...For the High Wind Warning, until 11 PM MST this 
  evening. For the High Wind Watch, from Monday morning through 
  late Monday night.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 16, 5:15 PM MSTHigh Wind WarningCYSAlbany, Carbon, Laramie, Platte18 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.