Alert archive / Wyoming / High Wind Warnings in 2021

High Wind Warning 56, NWS Cheyenne, WY

December 12, 2021Albany County, Laramie County, Platte County, Wyoming

NWS Cheyenne, WY issued this high wind warning at Dec 12, 2021, 5:13 PM MST for Albany County, Laramie County, Platte County, Wyoming. It was in force for 3 hr. 1 report 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 12, 2021, 5:13 PM MST (00:13 UTC)
Expired
Dec 12, 2021, 7:47 PM MST
In force
3 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 00:17 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 12, 5:14 PM MSTHIGH SUST WINDS 401 Sse Bordeaux, WYSUSTAINED OVER 40 MPH FOR PREVIOUS HOUR. MESONET 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 00:00Z, 0.2 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 00:00Z on 2021-12-13Temperature 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 00:00Z on 2021-12-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 149 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
3856 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
149 m²/s²
0-3 km storm-relative helicity
238 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

073 
WWUS75 KCYS 130013
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
513 PM MST Sun Dec 12 2021

WYZ106-130815-
/O.EXP.KCYS.HW.W.0055.000000T0000Z-211213T0000Z/
/O.NEW.KCYS.HW.W.0056.211213T0013Z-211213T0300Z/
/O.CON.KCYS.HW.A.0049.211214T0300Z-211214T1500Z/
Central Laramie Range and Southwest Platte County-
Including the city of Bordeaux
513 PM MST Sun Dec 12 2021

...HIGH WIND WARNING EXTENDED UNTIL 8 PM MST THIS EVENING... 
...HIGH WIND WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH 
TUESDAY MORNING...

* WHAT...For the High Wind Warning, west winds 35 to 45 mph with
  gusts up to 65 mph. For the High Wind Watch, southwest winds 30
  to 40 mph with gusts up to 60 mph possible.

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

* WHEN...For the High Wind Warning, until 8 PM MST this evening. 
  For the High Wind Watch, from Monday evening through Tuesday 
  morning.

* 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.

&&

$$

WYZ104-105-109-110-130815-
/O.EXP.KCYS.HW.W.0055.000000T0000Z-211213T0000Z/
/O.CON.KCYS.HW.A.0049.211213T1200Z-211214T1500Z/
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Central Carbon County-North Snowy Range Foothills-
Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin,
Rawlins, Arlington, and Elk Mountain
513 PM MST Sun Dec 12 2021

...CURRENT HIGH WIND WARNING WILL BE ALLOWED TO EXPIRE... 
...HIGH WIND WATCH REMAINS IN EFFECT FROM EARLY MONDAY THROUGH 
TUESDAY MORNING...

* WHAT...Wind gusts 35 to 45 mph remain possible through the
  overnight hours. For the High Wind Watch starting early Monday
  morning, southwest winds will increase again up to 30 to 40 mph
  with gusts up to 60 mph possible.

* WHERE...Ferris/Seminoe/Shirley Mountains, Shirley Basin, 
  Central Carbon County and North Snowy Range Foothills.

* WHEN...For the High Wind Watch, from late tonight through 
  Tuesday morning.

* IMPACTS...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.

&&

$$

WYZ101-116-130815-
/O.EXP.KCYS.HW.W.0055.000000T0000Z-211213T0000Z/
/O.CON.KCYS.HW.A.0049.211214T0300Z-211214T1500Z/
Converse County Lower Elevations-South Laramie Range-
Including the cities of Douglas, Glenrock, Bill, Deer Creek, 
Buford, Pumpkin Vine, and Vedauwoo
513 PM MST Sun Dec 12 2021

...CURRENT HIGH WIND WARNING WILL BE ALLOWED TO EXPIRE... 
...HIGH WIND WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH 
TUESDAY MORNING...

* WHAT...Wind gusts 30 to 40 mph remain possible through Monday. 
  For the High Wind Watch starting Monday evening, southwest winds
  will increase again up to 30 to 40 mph with gusts up to 60 mph 
  possible.

* WHERE...Converse County Lower Elevations and South Laramie 
  Range.

* WHEN...For the High Wind Watch, from Monday evening through 
  Tuesday morning.

* 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.

&&

$$

WYZ103-115-130115-
/O.EXP.KCYS.HW.W.0055.000000T0000Z-211213T0000Z/
North Laramie Range-Laramie Valley-
Including the cities of Garrett, Esterbrook, Laramie, and Bosler
513 PM MST Sun Dec 12 2021

...HIGH WIND WARNING HAS EXPIRED...

Winds have relaxed this afternoon and current gusts remain below
45 mph. Thus, have allowed the High Wind Warning to expire on
time.

$$

WYZ111-130815-
/O.CON.KCYS.HW.A.0049.211214T0300Z-211214T1500Z/
Southwest Carbon County-
Including the city of Baggs
513 PM MST Sun Dec 12 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH
TUESDAY MORNING...

* WHAT...South winds 30 to 40 mph with gusts up to 60 mph 
  possible.

* WHERE...Southwest Carbon County.

* WHEN...From Monday evening through Tuesday morning.

* IMPACTS...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.

&&

$$
1 follow-up statement
229 
WWUS75 KCYS 130247
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
747 PM MST Sun Dec 12 2021

WYZ106-131100-
/O.CAN.KCYS.HW.W.0056.000000T0000Z-211213T0300Z/
/O.CON.KCYS.HW.A.0049.211214T0300Z-211214T1500Z/
Central Laramie Range and Southwest Platte County-
Including the city of Bordeaux
747 PM MST Sun Dec 12 2021

...HIGH WIND WARNING WILL BE ALLOWED TO EXPIRE... 
...HIGH WIND WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH 
TUESDAY MORNING...

* WHAT...Wind gusts 30-40 mph remain possible through Monday. For
  the High Wind Watch, southwest winds 30 to 40 mph with gusts up
  to 60 mph possible.

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

* WHEN...From Monday evening through Tuesday morning.

* 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.

&&

$$

WYZ104-105-109-110-131100-
/O.CON.KCYS.HW.A.0049.211213T1200Z-211214T1500Z/
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Central Carbon County-North Snowy Range Foothills-
Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin,
Rawlins, Arlington, and Elk Mountain
747 PM MST Sun Dec 12 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM 5 AM MST MONDAY THROUGH
TUESDAY MORNING...

* WHAT...Wind gusts 35 to 45 mph remain possible through the 
  overnight hours. For the High Wind Watch starting early Monday 
  morning, southwest winds will increase again up to 30 to 40 
  mph with gusts up to 60 mph possible.

* WHERE...Ferris/Seminoe/Shirley Mountains, Shirley Basin, 
  Central Carbon County and North Snowy Range Foothills.

* WHEN...For the High Wind Watch, from late tonight through 
  Tuesday morning.

* IMPACTS...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.

&&

$$

WYZ101-111-116-131100-
/O.CON.KCYS.HW.A.0049.211214T0300Z-211214T1500Z/
Converse County Lower Elevations-Southwest Carbon County-
South Laramie Range-
Including the cities of Douglas, Glenrock, Bill, Deer Creek, 
Baggs, Buford, Pumpkin Vine, and Vedauwoo
747 PM MST Sun Dec 12 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH
TUESDAY MORNING...

* WHAT...Wind gusts 30 to 40 mph remain possible through Monday. 
  For the High Wind Watch starting Monday evening, southwest 
  winds will increase again up to 30 to 40 mph with gusts up to 
  60 mph possible.

* WHERE...Converse County Lower Elevations and South Laramie 
  Range.

* WHEN...For the High Wind Watch, from Monday evening through 
  Tuesday morning.

* 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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 13, 2:26 AM MSTHigh Wind WarningCYSAlbany, Carbon, Converse39 hr
Dec 13, 2:57 PM MSTHigh Wind WatchCYSAlbany, Carbon, Goshen, Laramie, Platte13 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.