Alert archive / Wyoming / High Wind Warnings in 2021

High Wind Warning 26, NWS Cheyenne, WY

May 8, 2021Albany County, Carbon County, Wyoming

NWS Cheyenne, WY issued this high wind warning at May 8, 2021, 4:15 AM MDT for Albany County, Carbon County, Wyoming. It was in force for 8 hr. 5 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: May 8, 2021, 4:15 AM MDT (10:15 UTC)
Expired: May 8, 2021, 12:00 PM MDT
In force: 8 hr
Issued by: NWS Cheyenne, WY

Counties Albany County, WY, Carbon County, WY

The radar

The Cheyenne radar (KCYS), 140 km from the middle of the area, began a volume at 10:17 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

Time	Report	Where	Remark
May 8, 4:42 AM MDT	HIGH SUST WINDS 41	1 Nnw Arlington, WY	MESONET STATION KARL ARLINGTON ALONG INTERSTATE 80 (WYDOT). 1 HOUR AVERAGE SUSTAINED WIND SPEED. MAXIMUM GUST OF 55 MPH DURING THIS PERIOD.
May 8, 7:36 AM MDT	NON-TSTM WND GST 64	1 Nnw Arlington, WY	MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT).
May 8, 9:22 AM MDT	NON-TSTM WND GST 60	1 Nnw Arlington, WY	MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT).
May 8, 10:12 AM MDT	NON-TSTM WND GST 62	1 Nnw Arlington, WY	MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT).
May 8, 10:32 AM MDT	NON-TSTM WND GST 65	1 Nnw Arlington, WY	MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT).

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, 10.3 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 54 J/kg
Mixed-layer CIN: -98 J/kg
Mixed-layer LCL: 3773 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -11 m²/s²
0-3 km storm-relative helicity: 29 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

501 
WWUS75 KCYS 081015
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
415 AM MDT Sat May 8 2021

WYZ110-081800-
/O.NEW.KCYS.HW.W.0026.210508T1015Z-210508T1800Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
415 AM MDT Sat May 8 2021

...HIGH WIND WARNING IN EFFECT UNTIL NOON MDT TODAY...

* WHAT...West to southwest winds 40 to 50 MPH with gusts up to 60
  MPH. 

* WHERE...Arlington and Elk Mountain along Interstate 80 between
  Laramie and Rawlins. 

* WHEN...Now until noon MDT today.

* IMPACTS...Mainly to transportation. Travel will be hazardous for
  light weight and high profile vehicles, including campers and
  tractor trailers. There is a high risk for vehicle blow overs in
  the warned area. 

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

1 follow-up statement

674 
WWUS75 KCYS 081750
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
1150 AM MDT Sat May 8 2021

WYZ110-081900-
/O.EXP.KCYS.HW.W.0026.000000T0000Z-210508T1800Z/
North Snowy Range Foothills-
Including the cities of Arlington and Elk Mountain
1150 AM MDT Sat May 8 2021

...HIGH WIND WARNING WILL EXPIRE AT NOON MDT TODAY...

West to northwest winds will remain rather gusty through the
afternoon hours, however the threat for high winds has ended.
Therefore, the High Wind Warning will expire at Noon MDT.

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 1:23 PM MDT	Winter Storm Watch	CYS	Albany, Laramie	24 hr

Nearby

High Wind Warnings in Wyoming, 2021 Every 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.