Alert archive / Wyoming / High Wind Warnings in 2020

High Wind Warning 4, NWS Cheyenne, WY

January 10, 20204 counties in Wyoming

NWS Cheyenne, WY issued this high wind warning at Jan 10, 2020, 2:42 PM MST for 4 counties in Wyoming. It took effect at Jan 10, 2020, 6:24 PM MST. It was in force for 22 hr. 14 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
Jan 10, 2020, 2:42 PM MST (21:42 UTC)
In effect from
Jan 10, 2020, 6:24 PM MST
Expired
Jan 11, 2020, 4:00 PM MST
In force
22 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 21:45 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
Jan 10, 6:36 PM MSTNON-TSTM WND GST 581 Nnw Arlington, WYWYDOT SENSOR AT ARLINGTON ALONG INTERSTATE 80. SUSTAINED WINDS OF 40 MPH.
Jan 10, 6:52 PM MSTNON-TSTM WND GST 631 Nnw Arlington, WYWYDOT SENSOR AT ARLINGTON ALONG INTERSTATE 80.
Jan 10, 8:06 PM MSTNON-TSTM WND GST 611 Nnw Arlington, WYWYDOT SENSOR AT ARLINGTON.
Jan 10, 8:12 PM MSTHIGH SUST WINDS 467 Nw Elk Mountain, WYWYDOT SENSOR AT HALLECK RIDGE. SUSTAINED WINDS BETWEEN 40 TO 47 MPH FOR OVER ONE HOUR. GUSTS UP TO 54 MPH.
Jan 10, 8:16 PM MSTNON-TSTM WND GST 583 Nw Arlington, WYWYDOT SENSOR AT FOOTE CREEK. CURRENT SUSTAINED WINDS OF 48 MPH.
Jan 11, 12:46 AM MSTNON-TSTM WND GST 581 Sse Bordeaux, WYMESONET STATION KBRX 1.4 S BORDEAUX (WYDOT).
Jan 11, 1:12 AM MSTNON-TSTM WND GST 552 E Arlington, WYMESONET STATION WY23 1.6 E ARLINGTON (WYDOT).
Jan 11, 5:03 AM MSTNON-TSTM WND GST 5911 Sse Harris Park, WYWHEATLAND CWOP SITE EW8763. SUSTAINED WINDS 36 MPH.
Jan 11, 5:24 AM MSTNON-TSTM WND GST 587 Ese Arlington, WYCOOPER COVE WYDOT SITE. SUSTAINED WINDS 39 MPH.
Jan 11, 5:36 AM MSTNON-TSTM WND GST 587 Ese Arlington, WYMESONET STATION WY24 6.9 E ARLINGTON (WYDOT).
Jan 11, 6:46 AM MSTNON-TSTM WND GST 6016 Nw Wheatland, WYMESONET STATION EW8763 WHEATLAND.
Jan 11, 11:06 AM MSTNON-TSTM WND GST 651 Sse Bordeaux, WYMESONET STATION KBRX 1.4 S BORDEAUX (WYDOT).
Jan 11, 11:16 AM MSTNON-TSTM WND GST 662 Sse Bordeaux, WYWYDOT MESONET STATION KBRX - BORDEAUX ALONG I-25.
Jan 11, 11:45 AM MSTNON-TSTM WND GST 6410 Ese Crystal Lake Cam, WYEMKAY UPR SITE. SUSTAINED WINDS 50 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 12:00Z, 9.7 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 12:00Z on 2020-01-10Temperature 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 2020-01-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 square meters per square second.193958Sfc1 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
1255 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
36 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

970 
WWUS75 KCYS 102142
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
242 PM MST Fri Jan 10 2020

...HIGH WINDS RETURNING TO WIND PRONE AREAS TONIGHT THROUGH
SATURDAY...

WYZ106-110-116-117-112300-
/O.UPG.KCYS.HW.A.0005.200111T0900Z-200111T2100Z/
/O.NEW.KCYS.HW.W.0004.200111T0600Z-200111T2300Z/
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-South Laramie Range-
South Laramie Range Foothills-
Including the cities of Bordeaux, Arlington, Elk Mountain, 
Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, 
and Horse Creek
242 PM MST Fri Jan 10 2020

...HIGH WIND WARNING IN EFFECT FROM 11 PM THIS EVENING TO 4 PM
MST SATURDAY...

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

* WHERE...Central Laramie Range and Southwest Platte County, North
  Snowy Range Foothills, South Laramie Range and South Laramie
  Range Foothills.

* WHEN...From 11 PM this evening to 4 PM MST Saturday.

* IMPACTS...Travel will be difficult for light and high profile
  vehicles. High risk of truck blowovers on interstates. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For the latest road closures and conditions in Wyoming, go to
wyoroad.info or dial 5 1 1.

&&

$$

Worley
3 follow-up statements
847 
WWUS75 KCYS 110124
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
624 PM MST Fri Jan 10 2020

...HIGH WINDS RETURNING TO WIND PRONE AREAS TONIGHT THROUGH
SATURDAY...

WYZ106-110-116-117-110930-
/O.EXT.KCYS.HW.W.0004.200111T0124Z-200111T2300Z/
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-South Laramie Range-
South Laramie Range Foothills-
Including the cities of Bordeaux, Arlington, Elk Mountain, 
Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, 
and Horse Creek
624 PM MST Fri Jan 10 2020

...HIGH WIND WARNING NOW IN EFFECT UNTIL 4 PM MST SATURDAY...

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

* WHERE...Central Laramie Range and Southwest Platte County, 
  North Snowy Range Foothills, South Laramie Range and South 
  Laramie Range Foothills.

* WHEN...Until 4 PM MST Saturday.

* IMPACTS...Travel will be difficult for light and high profile 
  vehicles. High risk of truck blowovers on interstates.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For the latest road closures and conditions in Wyoming, go to
wyoroad.info or dial 5 1 1.

&&

$$

Braun
215 
WWUS75 KCYS 110852
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
152 AM MST Sat Jan 11 2020

...HIGH WINDS IN WIND PRONE AREAS TONIGHT THROUGH SATURDAY...

WYZ106-110-116-117-112300-
/O.CON.KCYS.HW.W.0004.000000T0000Z-200111T2300Z/
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-South Laramie Range-
South Laramie Range Foothills-
Including the cities of Bordeaux, Arlington, Elk Mountain, 
Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, 
and Horse Creek
152 AM MST Sat Jan 11 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 PM MST THIS
AFTERNOON...

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

* WHERE...Central Laramie Range and Southwest Platte County, 
  North Snowy Range Foothills, South Laramie Range and South 
  Laramie Range Foothills. 

* WHEN...Until 4 PM MST Saturday.

* IMPACTS...Travel will be difficult for light and high profile 
  vehicles. High risk of truck blowovers on interstates. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For the latest road closures and conditions in Wyoming, go to
wyoroad.info or dial 5 1 1.

&&

$$
599 
WWUS75 KCYS 112302
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
402 PM MST Sat Jan 11 2020

WYZ106-110-116-117-120015-
/O.EXP.KCYS.HW.W.0004.000000T0000Z-200111T2300Z/
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-South Laramie Range-
South Laramie Range Foothills-
Including the cities of Bordeaux, Arlington, Elk Mountain, 
Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, 
and Horse Creek
402 PM MST Sat Jan 11 2020

...HIGH WIND WARNING HAS EXPIRED...

Winds and wind gusts have decreased substantially in the last few
hours. Winds are expected to continue decreasing over the course
of the afternoon and evening. A stray gust 50 to 55 mph is still
possible near the I-80 Summit, but otherwise, winds out of the 
west and southwest 20 to 25 mph with gusts to 40 mph are expected 
for the duration of the day.


$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 10, 1:06 AM MSTWinter Storm WatchCYSCarbon13 hr
Jan 10, 1:11 AM MSTHigh Wind WatchCYSAlbany, Carbon, Laramie, Platte14 hr
Jan 10, 4:27 AM MSTDense Fog AdvisoryCYSLaramie4 hr
Jan 10, 2:31 PM MSTWinter Storm WarningCYSCarbon3 days

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; radar from the NEXRAD Level II archive.