Alert archive / Wyoming / High Wind Warnings in 2021

High Wind Warning 14, NWS Cheyenne, WY

February 7, 2021Laramie County, Wyoming

NWS Cheyenne, WY issued this high wind warning at Feb 7, 2021, 2:33 PM MST for Laramie County, Wyoming. It took effect at Feb 7, 2021, 5:00 PM MST. It was in force for . No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 7, 2021, 2:33 PM MST (21:33 UTC)
In effect from
Feb 7, 2021, 5:00 PM MST
Expired
Feb 7, 2021, 4:42 PM MST
In force
Issued by
NWS Cheyenne, WY

County Laramie County, WY

The radar

The Cheyenne radar (KCYS), 20 km from the middle of the area, began a volume at 21:37 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

Denver, CO (KDNR), launched 12:00Z, 9.6 hours before the alert went out and 202 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 2021-02-07Temperature 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 2021-02-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 307 square meters per square second.1939587897117136Sfc1 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
2036 m above ground
0-6 km bulk shear
121 kt
0-1 km storm-relative helicity
307 m²/s²
0-3 km storm-relative helicity
525 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

429 
WWUS75 KCYS 072133
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
233 PM MST Sun Feb 7 2021

WYZ118-080545-
/O.CAN.KCYS.HW.W.0013.000000T0000Z-210208T0600Z/
/O.NEW.KCYS.HW.W.0014.210208T0000Z-210208T0600Z/
Central Laramie County-
Including the city of Cheyenne
233 PM MST Sun Feb 7 2021

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

* WHAT...North winds 20 to 30 mph with gusts up to 55 mph 
  expected.

* WHERE...Central Laramie County County.

* WHEN...Until 11 PM MST this evening.

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


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.

&&

$$

WYZ116-117-080545-
/O.EXT.KCYS.HW.W.0013.000000T0000Z-210209T0000Z/
South Laramie Range-South Laramie Range Foothills-
Including the cities of Buford, Pumpkin Vine, Vedauwoo, Whitaker,
Federal, and Horse Creek
233 PM MST Sun Feb 7 2021

...HIGH WIND WARNING NOW IN EFFECT UNTIL 5 PM MST MONDAY...

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

* WHERE...South Laramie Range and South Laramie Range Foothills 
  including the Interstate 80 Summit, Vedauwoo and Whitaker.

* WHEN...Until 5 PM MST Monday.

* 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. In addition, areas of blowing and drifting 
  snow may result in locally reduced visibilities and slick 
  spots on 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.&&

$$

WYZ110-080545-
/O.EXT.KCYS.HW.W.0013.000000T0000Z-210209T0000Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
233 PM MST Sun Feb 7 2021

...HIGH WIND WARNING NOW IN EFFECT UNTIL 5 PM MST MONDAY...

* WHAT...West winds 35 to 45 mph with gusts up to 70 mph.

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

* WHEN...Until 5 PM MST Monday.

* 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. In addition, areas of blowing and drifting 
  snow may result in locally reduced visibilities and slick 
  spots on 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.

&&

$$

WYZ109-113-115-080000-
/O.CON.KCYS.HW.W.0013.000000T0000Z-210208T0000Z/
Central Carbon County-Upper North Platte River Basin-
Laramie Valley-
Including the cities of Rawlins, Saratoga, Encampment, Bosler, 
and Laramie
233 PM MST Sun Feb 7 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

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

* WHERE...Central Carbon County, Upper North Platte River Basin 
  and Laramie Valley including Laramie, Rawlins and Saratoga.

* WHEN...From 5 PM this afternoon to 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.

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.

&&

$$

AW/MJ
1 follow-up statement
364 
WWUS75 KCYS 072342
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
442 PM MST Sun Feb 7 2021

WYZ118-080045-
/O.CAN.KCYS.HW.W.0014.210208T0000Z-210208T0600Z/
Central Laramie County-
Including the city of Cheyenne
442 PM MST Sun Feb 7 2021

...HIGH WIND WARNING IS CANCELLED...

Cold front has moved into the county and winds have turned
northeast. Strong warning level winds are no longer expected.
Therefore...the High Wind Warning has been cancelled early.

$$

WYZ109-113-115-080045-
/O.EXP.KCYS.HW.W.0013.000000T0000Z-210208T0000Z/
Central Carbon County-Upper North Platte River Basin-
Laramie Valley-
Including the cities of Rawlins, Saratoga, Encampment, Bosler, 
and Laramie
442 PM MST Sun Feb 7 2021

...HIGH WIND WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON...

Strong winds are easing late this afternoon and warning level
winds are no longer expected. Therefore...the High Wind Warnings
will be allowed to expire on time at 5 PM. Wind gusts to 50 mph 
will still be possible through sunset this evening.

$$

WYZ116-117-081200-
/O.CON.KCYS.HW.W.0013.000000T0000Z-210209T0000Z/
South Laramie Range-South Laramie Range Foothills-
Including the cities of Buford, Pumpkin Vine, Vedauwoo, Whitaker,
Federal, and Horse Creek
442 PM MST Sun Feb 7 2021

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

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

* WHERE...South Laramie Range and South Laramie Range Foothills 
  including the Interstate 80 Summit, Vedauwoo and Whitaker.

* WHEN...Until 5 PM MST Monday.

* 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. In addition, areas of blowing and drifting 
  snow may result in locally reduced visibilities and slick 
  spots on 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.

&&

$$

WYZ110-081200-
/O.CON.KCYS.HW.W.0013.000000T0000Z-210209T0000Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
442 PM MST Sun Feb 7 2021

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

* WHAT...West winds 35 to 45 mph with gusts up to 70 mph.

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

* WHEN...Until 5 PM MST Monday.

* 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. In addition, areas of blowing and drifting 
  snow may result in locally reduced visibilities and slick 
  spots on 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.

&&

$$

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.