Alert archive / Wyoming / High Wind Warnings in 2023

High Wind Warning 49, NWS Cheyenne, WY

December 9, 20234 counties in Wyoming

NWS Cheyenne, WY issued this high wind warning at Dec 9, 2023, 1:51 AM MST for 4 counties in Wyoming. It took effect at Dec 9, 2023, 7:17 PM MST. It was in force for 28 hr. 60 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
Dec 9, 2023, 1:51 AM MST (08:51 UTC)
In effect from
Dec 9, 2023, 7:17 PM MST
Expired
Dec 10, 2023, 11:00 PM MST
In force
28 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 08:55 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 9, 7:22 PM MSTNON-TSTM WND GST 593 Ese Elk Mountain, WYMesonet station WY20 2.5 SE Elk Mountain (WYDOT).
Dec 9, 8:26 PM MSTNON-TSTM WND GST 612 E Arlington, WYMesonet station WY23 1.6 E Arlington (WYDOT).
Dec 9, 8:46 PM MSTNON-TSTM WND GST 601 Nnw Arlington, WYMesonet station KARL 0.6 NW Arlington (WYDOT).
Dec 9, 8:56 PM MSTNON-TSTM WND GST 597 Ese Arlington, WYMesonet station WY24 6.9 E Arlington (WYDOT).
Dec 9, 9:06 PM MSTNON-TSTM WND GST 611 Nnw Arlington, WYMesonet station KARL 0.6 NW Arlington (WYDOT).
Dec 9, 9:32 PM MSTNON-TSTM WND GST 642 E Arlington, WYMesonet station WY23 1.6 E Arlington (WYDOT).
Dec 9, 9:42 PM MSTNON-TSTM WND GST 583 Ese Elk Mountain, WYMesonet station WY20 2.5 SE Elk Mountain (WYDOT).
Dec 9, 9:50 PM MSTNON-TSTM WND GST 644 W Muddy Gap, WYCamp Creek RAWS.
Dec 9, 9:52 PM MSTNON-TSTM WND GST 597 Ese Arlington, WYMesonet station WY24 6.9 E Arlington (WYDOT).
Dec 9, 10:56 PM MSTNON-TSTM WND GST 753 Ese Elk Mountain, WYMesonet station WY20 2.5 SE Elk Mountain (WYDOT).
Dec 9, 11:16 PM MSTNON-TSTM WND GST 581 Sse Bordeaux, WYWYDOT SENSOR AT BORDEAUX. SUSTAINED WINDS OF 40 TO 45 MPH.
Dec 9, 11:52 PM MSTNON-TSTM WND GST 651 Sse Bordeaux, WYWYDOT SENSOR AT BORDEAUX. SUSTAINED WINDS OF 45 TO 50 MPH.
Dec 10, 12:50 AM MSTNON-TSTM WND GST 654 W Muddy Gap, WY
Dec 10, 12:52 AM MSTNON-TSTM WND GST 731 Sse Bordeaux, WYWYDOT SENSOR AT BORDEAUX. SUSTAINED WINDS OF 45 MPH.
Dec 10, 1:32 AM MSTNON-TSTM WND GST 601 Nnw Arlington, WYMesonet station KARL 0.6 NW Arlington (WYDOT).
Dec 10, 1:32 AM MSTNON-TSTM WND GST 612 E Arlington, WYMesonet station WY23 1.6 E Arlington (WYDOT).
Dec 10, 2:06 AM MSTNON-TSTM WND GST 612 E Arlington, WYMesonet station WY23 1.6 E Arlington (WYDOT).
Dec 10, 2:50 AM MSTNON-TSTM WND GST 634 W Muddy Gap, WY
Dec 10, 3:02 AM MSTNON-TSTM WND GST 625 Nw Arlington, WYMesonet station WY21 5.5 NW Arlington (WYDOT).
Dec 10, 3:02 AM MSTNON-TSTM WND GST 63Vedauwoo, WYWYDOT SENSOR AT VEDAUWOO. SUSTAINED WINDS OF 40 TO 43 MPH.
Dec 10, 3:06 AM MSTNON-TSTM WND GST 611 Sse Bordeaux, WYWYDOT SENSOR AT BORDEAUX. SUSTAINED WINDS OF 41 TO 47 MPH.
Dec 10, 3:12 AM MSTNON-TSTM WND GST 63Vedauwoo, WYMesonet station KVDW Vedauwoo (WYDOT).
Dec 10, 3:16 AM MSTNON-TSTM WND GST 607 Ese Arlington, WYMesonet station WY24 6.9 E Arlington (WYDOT).
Dec 10, 3:32 AM MSTNON-TSTM WND GST 615 Nw Arlington, WYMesonet station WY21 5.5 NW Arlington (WYDOT).
Dec 10, 3:32 AM MSTNON-TSTM WND GST 617 Ese Arlington, WYMesonet station WY24 6.9 E Arlington (WYDOT).
Dec 10, 3:52 AM MSTNON-TSTM WND GST 593 Nw Arlington, WYMesonet station WY22 2.7 NW Arlington (WYDOT).
Dec 10, 3:56 AM MSTNON-TSTM WND GST 612 E Arlington, WYMesonet station WY23 1.6 E Arlington (WYDOT).
Dec 10, 4:09 AM MSTNON-TSTM WND GST 6111 Wsw Warren Af Base, WYMesonet station UP226 10.5 NW Natural Fort (UPR).
Dec 10, 4:16 AM MSTNON-TSTM WND GST 677 Ese Arlington, WYMesonet station WY24 6.9 E Arlington (WYDOT).
Dec 10, 4:18 AM MSTNON-TSTM WND GST 6211 Wsw Warren Af Base, WYMesonet station UP226 10.5 NW Natural Fort (UPR).
Dec 10, 4:19 AM MSTNON-TSTM WND GST 622 Wnw Buford, WYMesonet station UR535 Sherws.
Dec 10, 4:22 AM MSTNON-TSTM WND GST 731 Sse Bordeaux, WYWYDOT SENSOR AT BORDEAUX. SUSTAINED WINDS OF 39 TO 46 MPH.
Dec 10, 4:26 AM MSTNON-TSTM WND GST 663 Nw Elk Mountain, WYMesonet station WY19 2.9 NW Elk Mountain (WYDOT).
Dec 10, 4:26 AM MSTNON-TSTM WND GST 7111 Se Arlington, WYMesonet station WY25 10.7 SE Arlington (WYDOT).
Dec 10, 4:33 AM MSTNON-TSTM WND GST 583 Ne Pumpkin Vine, WYMesonet station UR351 3.1 NE Pumpkin Vine (UPR).
Dec 10, 4:34 AM MSTNON-TSTM WND GST 6211 Wsw Warren Af Base, WYMesonet station UP226 10.5 NW Natural Fort (UPR).
Dec 10, 4:46 AM MSTNON-TSTM WND GST 604 Nnw Vedauwoo, WYMesonet station WY28 3.9 NW Vedauwoo (WYDOT).
Dec 10, 4:46 AM MSTNON-TSTM WND GST 633 Nw Arlington, WYMesonet station WY22 2.7 NW Arlington (WYDOT).
Dec 10, 4:46 AM MSTNON-TSTM WND GST 831 Sse Bordeaux, WYWYDOT SENSOR AT BORDEAUX. SUSTAINED WINDS OF 54 MPH.
Dec 10, 4:48 AM MSTNON-TSTM WND GST 682 Wnw Buford, WYMesonet station UR535 Sherws.
Dec 10, 4:49 AM MSTNON-TSTM WND GST 632 Wnw Buford, WYMesonet station UP203 2.0 W Buford (UPR).
Dec 10, 4:50 AM MSTNON-TSTM WND GST 704 W Muddy Gap, WYGusts to 68 mph at 350 AM.
Dec 10, 4:52 AM MSTNON-TSTM WND GST 582 Wnw Buford, WYMesonet station WY36 2.4 NW Buford (WYDOT).
Dec 10, 4:52 AM MSTNON-TSTM WND GST 631 Nnw Arlington, WYMesonet station KARL 0.6 NW Arlington (WYDOT).
Dec 10, 4:52 AM MSTNON-TSTM WND GST 64Vedauwoo, WYMesonet station KVDW Vedauwoo (WYDOT).
Dec 10, 4:52 AM MSTNON-TSTM WND GST 64Vedauwoo, WYWYDOT SENSOR AT VEDAUWOO. SUSTAINED WINDS OF 47 MPH.
Dec 10, 4:52 AM MSTNON-TSTM WND GST 662 E Arlington, WYMesonet station WY23 1.6 E Arlington (WYDOT).
Dec 10, 4:52 AM MSTNON-TSTM WND GST 683 Nw Elk Mountain, WYMesonet station WY19 2.9 NW Elk Mountain (WYDOT).
Dec 10, 4:52 AM MSTNON-TSTM WND GST 7811 Se Arlington, WYMesonet station WY25 10.7 SE Arlington (WYDOT).
Dec 10, 4:52 AM MSTNON-TSTM WND GST 831 Sse Bordeaux, WYMesonet station KBRX 1.4 S Bordeaux (WYDOT).
Dec 10, 4:56 AM MSTNON-TSTM WND GST 582 Wnw Buford, WYMesonet station WY36 2.4 NW Buford (WYDOT).
Dec 10, 4:56 AM MSTNON-TSTM WND GST 683 Nw Elk Mountain, WYMesonet station WY19 2.9 NW Elk Mountain (WYDOT).
Dec 10, 4:56 AM MSTNON-TSTM WND GST 7811 Se Arlington, WYMesonet station WY25 10.7 SE Arlington (WYDOT).
Dec 10, 5:00 AM MSTNON-TSTM WND GST 612 W Centennial, WYMesonet station DVI00519 Laramie.
Dec 10, 5:02 AM MSTNON-TSTM WND GST 641 Nnw Arlington, WYMesonet station KARL 0.6 NW Arlington (WYDOT).
Dec 10, 5:02 AM MSTNON-TSTM WND GST 643 Nw Arlington, WYMesonet station WY22 2.7 NW Arlington (WYDOT).
Dec 10, 5:02 AM MSTNON-TSTM WND GST 64Vedauwoo, WYMesonet station KVDW Vedauwoo (WYDOT).
Dec 10, 5:06 AM MSTNON-TSTM WND GST 587 Sw Federal, WYWYDOT SENSOR AT WILDCAT TRAIL WEST OF CHEYENNE.
Dec 10, 5:06 AM MSTNON-TSTM WND GST 64Vedauwoo, WYMesonet station KVDW Vedauwoo (WYDOT).
Dec 10, 5:12 AM MSTNON-TSTM WND GST 587 Sw Federal, WYMesonet station WY48 7.4 SW Federal (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, 8.9 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 00:00Z on 2023-12-09Temperature 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 00:00Z on 2023-12-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 square meters per square second.1939Sfc1 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
1257 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

440 
WWUS75 KCYS 090851
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
151 AM MST Sat Dec 9 2023

WYZ106-110-116-092330-
/O.UPG.KCYS.HW.A.0051.231210T0600Z-231211T0600Z/
/O.NEW.KCYS.HW.W.0049.231210T0600Z-231211T0600Z/
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-South Laramie Range-
Including the cities of Bordeaux, Arlington, Elk Mountain, 
Buford, Pumpkin Vine, and Vedauwoo
151 AM MST Sat Dec 9 2023

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

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

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

* WHEN...From Saturday evening through Sunday evening.

* IMPACTS...Mainly to transportation. Strong cross winds will be
  hazardous to light weight or high profile vehicles, including
  campers and tractor trailers.

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.

&&

$$

WYZ104-105-107-109-115-117-092330-
/O.NEW.KCYS.HW.A.0052.231210T0600Z-231211T0000Z/
Ferris/Seminoe/Shirley Mountains-Shirley Basin-East Platte County-
Central Carbon County-Laramie Valley-
South Laramie Range Foothills-
Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin,
Wheatland, Guernsey, Rawlins, Bosler, Laramie, Whitaker, Federal,
and Horse Creek
151 AM MST Sat Dec 9 2023

...HIGH WIND WATCH IN EFFECT FROM LATE THIS EVENING THROUGH 
SUNDAY AFTERNOON...

* WHAT...West winds 35 to 45 mph with gusts up to 65 mph 
  possible.
 
* WHERE...The Laramie Valley, northern and central Carbon County,
  east Platte County, and the southern Laramie Range Foothills. 

* WHEN...From late Saturday evening through late Sunday afternoon.

* IMPACTS...Mainly to transportation. Strong cross winds will be
  hazardous to light weight or high profile vehicles, including
  campers and tractor trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph, or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$
7 follow-up statements
818 
WWUS75 KCYS 092111
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
211 PM MST Sat Dec 9 2023

WYZ104-105-109-115-101200-
/O.UPG.KCYS.HW.A.0052.231210T0600Z-231211T0000Z/
/O.EXB.KCYS.HW.W.0049.231210T0600Z-231211T0000Z/
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Central Carbon County-Laramie Valley-
Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin,
Rawlins, Bosler, and Laramie
211 PM MST Sat Dec 9 2023

...HIGH WIND WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 PM
MST SUNDAY...

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

* WHERE...Portions of Carbon and Albany Counties in Wyoming
  including Shirley Basin, Rawlins, and the Laramie Valley.

* WHEN...From 11 PM this evening to 5 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong cross winds will be
  hazardous to light weight or high profile vehicles, including
  campers and tractor trailers.

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.

&&

$$

WYZ107-117-101200-
/O.UPG.KCYS.HW.A.0052.231210T0600Z-231211T0000Z/
/O.EXB.KCYS.HW.W.0049.231210T0600Z-231211T0000Z/
East Platte County-South Laramie Range Foothills-
Including the cities of Wheatland, Guernsey, Whitaker, Federal, 
and Horse Creek
211 PM MST Sat Dec 9 2023

...HIGH WIND WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 PM
MST SUNDAY...

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

* WHERE...East Platte County and South Laramie Range Foothills
  including portions of Interstate 25 and 80 near Cheyenne and
  Wheatland.

* WHEN...From 11 PM this evening to 5 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong cross winds will be
  hazardous to light weight or high profile vehicles, including
  campers and tractor trailers.

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.

&&

$$

WYZ106-110-116-101200-
/O.CON.KCYS.HW.W.0049.231210T0600Z-231211T0600Z/
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-South Laramie Range-
Including the cities of Bordeaux, Arlington, Elk Mountain, 
Buford, Pumpkin Vine, and Vedauwoo
211 PM MST Sat Dec 9 2023

...HIGH WIND WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
11 PM MST SUNDAY...

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

* WHERE...Central Laramie Range and Southwest Platte County, North
  Snowy Range Foothills, and South Laramie Range. This includes
  Bordeaux along Interstate 25 and Arlington along Interstate 80.

* WHEN...From Saturday evening through Sunday evening.

* IMPACTS...Mainly to transportation. Strong cross winds will be
  hazardous to light weight or high profile vehicles, including
  campers and tractor trailers.

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.

&&

$$
893 
WWUS75 KCYS 100217
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
717 PM MST Sat Dec 9 2023

WYZ106-110-116-101230-
/O.EXT.KCYS.HW.W.0049.231210T0217Z-231211T0600Z/
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-South Laramie Range-
Including the cities of Bordeaux, Arlington, Elk Mountain, 
Buford, Pumpkin Vine, and Vedauwoo
717 PM MST Sat Dec 9 2023

...HIGH WIND WARNING NOW IN EFFECT UNTIL 11 PM MST SUNDAY...

* WHAT...West winds 35 to 45 mph with gusts up to 75 mph.

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

* WHEN...Until 11 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong cross winds will be
  hazardous to light weight or high profile vehicles, including
  campers and tractor trailers.

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.

&&

$$

WYZ104-105-109-115-101230-
/O.CON.KCYS.HW.W.0049.231210T0600Z-231211T0000Z/
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Central Carbon County-Laramie Valley-
Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin,
Rawlins, Bosler, and Laramie
717 PM MST Sat Dec 9 2023

...HIGH WIND WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM MST SUNDAY...

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

* WHERE...Portions of Carbon and Albany Counties in Wyoming
  including Shirley Basin, Rawlins, and the Laramie Valley.

* WHEN...From 11 PM this evening to 5 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong cross winds will be
  hazardous to light weight or high profile vehicles, including
  campers and tractor trailers.

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.

&&

$$

WYZ107-117-101230-
/O.CON.KCYS.HW.W.0049.231210T0600Z-231211T0000Z/
East Platte County-South Laramie Range Foothills-
Including the cities of Wheatland, Guernsey, Whitaker, Federal, 
and Horse Creek
717 PM MST Sat Dec 9 2023

...HIGH WIND WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM MST SUNDAY...

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

* WHERE...East Platte County and South Laramie Range Foothills
  including portions of Interstate 25 and 80 near Cheyenne and
  Wheatland..

* WHEN...From 11 PM this evening to 5 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong cross winds will be
  hazardous to light weight or high profile vehicles, including
  campers and tractor trailers.

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.

&&

$$

BW
235 
WWUS75 KCYS 100919
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
219 AM MST Sun Dec 10 2023

WYZ106-110-116-102230-
/O.CON.KCYS.HW.W.0049.000000T0000Z-231211T0600Z/
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-South Laramie Range-
Including the cities of Bordeaux, Arlington, Elk Mountain, 
Buford, Pumpkin Vine, and Vedauwoo
219 AM MST Sun Dec 10 2023

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

* WHAT...West winds 35 to 45 mph with gusts up to 75 mph.

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

* WHEN...Until 11 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong cross winds will be 
  hazardous to light weight or high profile vehicles, including 
  campers and tractor trailers. 

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.

&&

$$

WYZ104-105-109-115-102230-
/O.CON.KCYS.HW.W.0049.000000T0000Z-231211T0000Z/
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Central Carbon County-Laramie Valley-
Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin,
Rawlins, Bosler, and Laramie
219 AM MST Sun Dec 10 2023

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

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

* WHERE...Portions of Carbon and Albany Counties in Wyoming 
  including Shirley Basin, Rawlins, and the Laramie Valley. 

* WHEN...From 11 PM this evening to 5 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong cross winds will be 
  hazardous to light weight or high profile vehicles, including 
  campers and tractor trailers. 

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.

&&

$$

WYZ107-117-102230-
/O.CON.KCYS.HW.W.0049.000000T0000Z-231211T0000Z/
East Platte County-South Laramie Range Foothills-
Including the cities of Wheatland, Guernsey, Whitaker, Federal, 
and Horse Creek
219 AM MST Sun Dec 10 2023

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

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

* WHERE...East Platte County and South Laramie Range Foothills 
  including portions of Interstate 25 and 80 near Cheyenne and 
  Wheatland.. 

* WHEN...From 11 PM this evening to 5 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong cross winds will be 
  hazardous to light weight or high profile vehicles, including 
  campers and tractor trailers. 

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.

&&

$$
545 
WWUS75 KCYS 101141
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
441 AM MST Sun Dec 10 2023

WYZ118-110000-
/O.EXA.KCYS.HW.W.0049.000000T0000Z-231211T0000Z/
Central Laramie County-
Including the city of Cheyenne
441 AM MST Sun Dec 10 2023

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

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

* WHERE...Central Laramie County including Cheyenne. 

* WHEN...Until 5 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong cross winds will be 
  hazardous to light weight or high profile vehicles, including 
  campers and tractor trailers. 

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.

&&

$$

WYZ106-110-116-110000-
/O.CON.KCYS.HW.W.0049.000000T0000Z-231211T0600Z/
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-South Laramie Range-
Including the cities of Bordeaux, Arlington, Elk Mountain, 
Buford, Pumpkin Vine, and Vedauwoo
441 AM MST Sun Dec 10 2023

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

* WHAT...West winds 35 to 45 mph with gusts up to 75 mph.

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

* WHEN...Until 11 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong cross winds will be 
  hazardous to light weight or high profile vehicles, including 
  campers and tractor trailers. 

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.

&&

$$

WYZ104-105-109-115-110000-
/O.CON.KCYS.HW.W.0049.000000T0000Z-231211T0000Z/
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Central Carbon County-Laramie Valley-
Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin,
Rawlins, Bosler, and Laramie
441 AM MST Sun Dec 10 2023

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

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

* WHERE...Portions of Carbon and Albany Counties in Wyoming 
  including Shirley Basin, Rawlins, and the Laramie Valley. 

* WHEN...From 11 PM this evening to 5 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong cross winds will be 
  hazardous to light weight or high profile vehicles, including 
  campers and tractor trailers. 

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.

&&

$$

WYZ107-117-110000-
/O.CON.KCYS.HW.W.0049.000000T0000Z-231211T0000Z/
East Platte County-South Laramie Range Foothills-
Including the cities of Wheatland, Guernsey, Whitaker, Federal, 
and Horse Creek
441 AM MST Sun Dec 10 2023

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

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

* WHERE...East Platte County and South Laramie Range Foothills 
  including portions of Interstate 25 and 80 near Cheyenne and 
  Wheatland.. 

* WHEN...From 11 PM this evening to 5 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong cross winds will be 
  hazardous to light weight or high profile vehicles, including 
  campers and tractor trailers. 

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.

&&

$$
943 
WWUS75 KCYS 102106
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
206 PM MST Sun Dec 10 2023

WYZ106-110-116-110515-
/O.CON.KCYS.HW.W.0049.000000T0000Z-231211T0600Z/
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-South Laramie Range-
Including the cities of Bordeaux, Arlington, Elk Mountain, 
Buford, Pumpkin Vine, and Vedauwoo
206 PM MST Sun Dec 10 2023

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

* WHAT...West winds 35 to 45 mph with gusts up to 75 mph.

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

* WHEN...Until 11 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong cross winds will be
  hazardous to light weight or high profile vehicles, including
  campers and tractor trailers.

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.

&&

$$

WYZ104-105-109-115-110000-
/O.CON.KCYS.HW.W.0049.000000T0000Z-231211T0000Z/
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Central Carbon County-Laramie Valley-
Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin,
Rawlins, Bosler, and Laramie
206 PM MST Sun Dec 10 2023

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

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

* WHERE...Portions of Carbon and Albany Counties in Wyoming 
  including Shirley Basin, Rawlins, and the Laramie Valley.

* WHEN...From 11 PM this evening to 5 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong cross winds will be
  hazardous to light weight or high profile vehicles, including
  campers and tractor trailers.

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.

&&

$$

WYZ107-117-118-110000-
/O.CON.KCYS.HW.W.0049.000000T0000Z-231211T0000Z/
East Platte County-South Laramie Range Foothills-
Central Laramie County-
Including the cities of Wheatland, Guernsey, Whitaker, Federal, 
Horse Creek, and Cheyenne
206 PM MST Sun Dec 10 2023

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

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

* WHERE...East Platte County and South Laramie Range Foothills 
  including portions of Interstate 25 and 80 near Cheyenne and 
  Wheatland.

* WHEN...From 11 PM this evening to 5 PM MST Sunday.

* IMPACTS...Mainly to transportation. Strong cross winds will be
  hazardous to light weight or high profile vehicles, including
  campers and tractor trailers.

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.

&&

$$
379 
WWUS75 KCYS 102352
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
452 PM MST Sun Dec 10 2023

WYZ104-105-109-115-110100-
/O.EXP.KCYS.HW.W.0049.000000T0000Z-231211T0000Z/
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Central Carbon County-Laramie Valley-
Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin,
Rawlins, Bosler, and Laramie
452 PM MST Sun Dec 10 2023

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

Gusty winds up to 40-50mph will still be possible at times this
evening, but the threat of stronger wind gusts has dissipated.

$$

WYZ107-117-118-110100-
/O.EXP.KCYS.HW.W.0049.000000T0000Z-231211T0000Z/
East Platte County-South Laramie Range Foothills-
Central Laramie County-
Including the cities of Wheatland, Guernsey, Whitaker, Federal, 
Horse Creek, and Cheyenne
452 PM MST Sun Dec 10 2023

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

Gusty winds up to 40-50mph will still be possible at times this
evening, but the threat of stronger wind gusts has dissipated..

$$

WYZ106-110-116-110600-
/O.CON.KCYS.HW.W.0049.000000T0000Z-231211T0600Z/
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-South Laramie Range-
Including the cities of Bordeaux, Arlington, Elk Mountain, 
Buford, Pumpkin Vine, and Vedauwoo
452 PM MST Sun Dec 10 2023

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

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

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

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

* IMPACTS...Mainly to transportation. Strong cross winds will be
  hazardous to light weight or high profile vehicles, including
  campers and tractor trailers.

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.

&&

$$
920 
WWUS75 KCYS 110543
NPWCYS

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
1043 PM MST Sun Dec 10 2023

WYZ106-110-116-110645-
/O.EXP.KCYS.HW.W.0049.000000T0000Z-231211T0600Z/
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-South Laramie Range-
Including the cities of Bordeaux, Arlington, Elk Mountain, 
Buford, Pumpkin Vine, and Vedauwoo
1043 PM MST Sun Dec 10 2023

...HIGH WIND WARNING WILL EXPIRE AT 11 PM MST THIS EVENING...

Strong westerly winds earlier today have subsided across the wind
prone areas of southeast Wyoming. Therefore, will allow the
remaining High Wind Warning to expire on time. 

Although strong winds over 58 MPH are not expected tonight, windy
conditions will continue past midnight with sustained westerly
winds between 25 to 35 MPH and occasional gusts up to 50 MPH.
These winds will continue to diminish towards sunrise Monday. 

$$

What forecasters said that day

The local office's own words before this high wind warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Cheyenne, WY wrote its last area forecast discussion before this high wind warning went out at Dec 8, 10:34 PM MST, 3 hours 17 minutes earlier. Its key messages:

  • Winter Weather Advisories remain in effect for the Sierra Madres and Snowy Mountain ranges through 5am Saturday.
  • Strong winds will return to the wind prone areas on Saturday night and continue through Sunday evening.
  • Period of light snowfall late Monday afternoon into Tuesday morning with minimal accumulations.
Area forecast discussion, Dec 8, 10:34 PM MST, 3 hours 17 minutes before
Area Forecast Discussion
National Weather Service Cheyenne WY
1034 PM MST Fri Dec 8 2023

.KEY MESSAGES...

- Winter Weather Advisories remain in effect for the Sierra Madres
  and Snowy Mountain ranges through 5am Saturday.

- Strong winds will return to the wind prone areas on Saturday night
  and continue through Sunday evening.

- Period of light snowfall late Monday afternoon into Tuesday morning
  with minimal accumulations.

&&

.DISCUSSION...
Issued at 144 PM MST Fri Dec 8 2023

     Short Term (Today through Sunday Night)...

Latest surface analysis has depicted the deepening low pressure cell
tracking eastward across the northern CONUS, dragging its associated
cold front from Montana to the northeast corner of Wyoming. Off the
the west, high pressure builds across the Western Seaboard and will
play a role as we move into the weekend. Observations throughout the
morning have seen colder temperatures today as a result of the
passage of the primary wave yesterday, with temperatures in the low
30s for the majority of areas in southeast Wyoming and in the low
40s for areas out east across the Nebraska Panhandle, and some light
snow recorded at Rawlins/Laramie where satellite imagery show some
snow banding taking place.

Forecast remains on track for the day, with the secondary boundary
is expected to dig south across the CWA, giving some light
precipitation across the lower areas for southeast Wyoming. Before
the arrival of the boundary, mainly westerly flow is expected with
increased upslope flow for the Sierra Madres and Snowy Range.
Already seeing some light banding for areas near Rawlins, where CAPE
values hover from 100 to 200 J/kg from Carbon to Albany County. All
in all, these features should aid in some better snowfalls for the
mountain ranges with some continued snow banding possible and around
40% to 60% chance of this occurring across the Sierra Madres and
Snowy Range per the HREF. Although, any snow squall threats appear
minimal with only light snow for KRWL and visibilities staying
around 2sm to 4sm, cannot fully rule out decent amounts of snow from
these bands as KLAR has a band move through the zone and reduced
visibilities to just under 1sm and some accumulations. Winter
Weather Advisories remain in effect through tomorrow morning for any
additional accumulations expected across those ranges. Although the
main threat for blowing snow has continued to diminish with the
strongest winds observed yesterday. Will allow the headline to run
its course for any additional accumulations for the boundary digging
across the zone.

Additional concerns for the short term forecast include the
continued chance for strong winds to return to CWA this weekend.
Strong jet energy is progged to push through northeast WYoming, and
placing our wind corridors across the Left Entrance Region of the
jet, with pressure falls developing on the lee side of the Laramie
Range and increased gradients. Surface gradients appear at play with
this event, with generally 4mb gradients spanning the Arlington
zone, and similar for Bordeaux an overall favorable flow. NBM v4.1
Probability of Exceeding 48kts has begun picking up on these
features, with higher likelihoods (70% to 85%) of strong winds for
areas along and east of the Laramie Range and similar for the wind
prones long I-80. Main uncertainty exists for the south Laramie
County and if they flow is able to maintain its strength downstream.
In-house model guidance has maintained lesser probabilities (under
30%)for criteria based winds to reach the across the I-25 corridor
in Laramie County. Will need to re-evaluate throughout the coming
forecast packages, with 700mb wind speeds in excess of 50 knots for
southern Laramie County and if those winds are able to make its way
down to the surface. Regardless, will be a windy day for Cheyenne
with wind gusts up to 45 knots likely (around 80%).

     Long Term (Monday through Friday)...

An upper level low emerging out of the northwest flow will begin
digging into the intermountain-west early next week with multiple
shortwaves ejecting in the flow. Additionally, a trailing cold front
associated with a surface low tracking across south-central Canada
will pass through Monday afternoon with northerly low level flow
eventually turning easterly. This will result in the potential for
light snowfall with weak frontal forcing and upslope flow across the
Pine Ridge as well as the Laramie Range and eastern foothills. The
main timing for snowfall looks to be late Monday afternoon into the
evening, but could see light snowfall linger throughout the day
Tuesday. Overall, this still looks to be a quick system with minimal
accumulations. Latest NBM probability of exceeding 1" of snowfall
continues to only linger around 10-15% for the Pine Ridge and
eastern foothills of the Laramie Range.

Deterministic guidance has come in better alignment with the
development of the upper level low closing off near the four corners
region for the middle of next week, but uncertainty still remains.
The best dynamics with this system will remain well to the south,
but latest cluster analysis shows a numerous GEFS members trying to
keep some precipitation along the Front Range near the CO/WY border.
With the slow moving upper low positioned to the south, will see
cooler temperatures persist through the week as well as a break from
high winds.

&&

.AVIATION /06Z TAFS THROUGH 06Z SUNDAY/...
Issued at 1028 PM MST Fri Dec 8 2023

VFR is expected for most terminals through the forecast period.
MVFR to fluctuations of IFR will be present for KRWL between 6z
to 12z at times. Wind gusts will pick up for the NE Panhandle
terminals overnight, with gusts of 20-30 knots. They will pick
up even higher to 35-40 knots through the afternoon hours
Saturday for the NE Panhandle terminals. SE WY terminals will
see wind gusts of 20-30 knots during Saturday afternoon.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...High Wind Watch from Saturday evening through Sunday evening
     for WYZ106-110-116.
     Winter Weather Advisory until 5 AM MST Saturday for WYZ112-114.
NE...None.

&&

DISCUSSION...MB/MRD
AVIATION...BW
Hazardous weather outlook, Dec 8, 1:56 PM MST, 11 hours 55 minutes before
Hazardous Weather Outlook
National Weather Service Cheyenne WY
156 PM MST Fri Dec 8 2023

NEZ002-003-019>021-054-055-095-096-WYZ101>105-107>109-111-113-115-
118-119-092100-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-East Platte County-Goshen County-
Central Carbon County-Southwest Carbon County-
Upper North Platte River Basin-Laramie Valley-
Central Laramie County-East Laramie County-
156 PM MST Fri Dec 8 2023

This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming...south central Wyoming and
southeast Wyoming.

.DAY ONE...THIS AFTERNOON AND TONIGHT

Colder, with light snow possible through the evening hours.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

Period of light snowfall late Monday afternoon into Tuesday
morning with minimal accumulations.

.Spotter information statement...

WYZ112-114-092100-
Sierra Madre Range-Snowy Range-
156 PM MST Fri Dec 8 2023

This hazardous weather outlook is for portions of south central
Wyoming.

.DAY ONE...THIS AFTERNOON AND TONIGHT

Winter Weather Advisories remain in effect for the Sierra Madres and
Snowy Mountain ranges through 5am Saturday.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

Period of light snowfall late Monday afternoon into Tuesday
morning with minimal accumulations.

.Spotter information statement...

WYZ106-110-116-117-092100-
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-South Laramie Range-
South Laramie Range Foothills-
156 PM MST Fri Dec 8 2023

This hazardous weather outlook is for portions of south central
Wyoming and southeast Wyoming.

.DAY ONE...THIS AFTERNOON AND TONIGHT

Colder, with light snow possible through the evening hours.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

Strong winds will return to the wind prone areas on Saturday night and
continue through Sunday evening. Period of light snowfall late
Monday afternoon into Tuesday morning with minimal accumulations.

.Spotter information statement...

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 9, 1:51 AM MSTHigh Wind WatchCYSAlbany, Carbon, Laramie, Platte12 hr

Nearby

High Wind Warnings in Wyoming, 2023Every high wind warning in 2023

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.