Alert archive / Wyoming / High Wind Warnings in 2020

High Wind Warning 40, NWS Cheyenne, WY

November 5, 2020Albany County, Carbon County, Wyoming

NWS Cheyenne, WY issued this high wind warning at Nov 5, 2020, 10:04 AM MST for Albany County, Carbon County, Wyoming. It was in force for 23 hr. 2 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 5, 2020, 10:04 AM MST (17:04 UTC)
Expired
Nov 6, 2020, 9:13 AM MST
In force
23 hr
Issued by
NWS Cheyenne, WY

Counties Albany County, WY, Carbon County, WY

What was reported inside it

TimeReportWhereRemark
Nov 6, 4:30 AM MSTNON-TSTM WND GST 601 Nnw Arlington, WYSUSTAINED WIND 41 TO 48 MPH FROM 412 AM TO 430 AM.
Nov 6, 4:30 AM MSTNON-TSTM WND GST 601 Nnw Arlington, WYSUSTAINED WIND 41 TO 48 MPH FROM 412 PM TO 430 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, 5.1 hours before the alert went out and 230 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 2020-11-05Temperature 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 2020-11-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 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
3063 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
123 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

570 
WWUS75 KCYS 051704
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
1004 AM MST Thu Nov 5 2020

WYZ110-061200-
/O.NEW.KCYS.HW.W.0040.201105T1704Z-201106T1800Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
1004 AM MST Thu Nov 5 2020

...HIGH WIND WARNING IN EFFECT UNTIL 11 AM MST FRIDAY...

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

* WHERE...North Snowy Range Foothills County.

* WHEN...Until 11 AM MST Friday.

* IMPACTS...Mainly to transportation. Light weight and high
  profile vehicles risk blow off or blowover in these strong
  crosswinds on Interstate 80. Those towing camper trailers are
  particularly at risk.

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.

&&

$$
3 follow-up statements
574 
WWUS75 KCYS 052005
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
105 PM MST Thu Nov 5 2020

WYZ110-061200-
/O.CON.KCYS.HW.W.0040.000000T0000Z-201106T1800Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
105 PM MST Thu Nov 5 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST FRIDAY...

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

* WHERE...North Snowy Range Foothills County.

* WHEN...Until 11 AM MST Friday.

* IMPACTS...Mainly to transportation. Light weight and high 
  profile vehicles risk blow off or blowover in these strong 
  crosswinds on Interstate 80. Those towing camper trailers are 
  particularly at risk.

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.

&&

$$
081 
WWUS75 KCYS 061036
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
336 AM MST Fri Nov 6 2020

WYZ110-061800-
/O.CON.KCYS.HW.W.0040.000000T0000Z-201106T1800Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
336 AM MST Fri Nov 6 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

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

* WHERE...North Snowy Range Foothills County.

* WHEN...Until 11 AM MST today.

* IMPACTS...Mainly to transportation. Light weight and high 
  profile vehicles risk blow off or blowover in these strong 
  crosswinds on Interstate 80. Those towing camper trailers are 
  particularly at risk.

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.

&&

$$
247 
WWUS75 KCYS 061613
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
Issued by National Weather Service Riverton WY
913 AM MST Fri Nov 6 2020

WYZ110-061715-
/O.CAN.KCYS.HW.W.0040.000000T0000Z-201106T1800Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
913 AM MST Fri Nov 6 2020

...HIGH WIND WARNING IS CANCELLED...

Winds have been decreasing this morning, and the threat for high
winds has ended. The High Wind Warning has been cancelled.

$$

Nearby

High Wind Warnings in Wyoming, 2020Every high wind warning in 2020

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.