Alert archive / Wyoming / High Wind Warnings in 2012

High Wind Warning 43, NWS Cheyenne, WY

December 9, 20124 counties in Wyoming

NWS Cheyenne, WY issued this high wind warning at Dec 9, 2012, 3:10 PM MST for 4 counties in Wyoming. It took effect at Dec 9, 2012, 11:00 PM MST. It was in force for 11 hr. 11 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, 2012, 3:10 PM MST (22:10 UTC)
In effect from
Dec 9, 2012, 11:00 PM MST
Expired
Dec 10, 2012, 9:52 AM MST
In force
11 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 22:07 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, 11:01 PM MSTNON-TSTM WND GST 643 Nw Arlington, WYFOOTE CREEK WYDOT SITE. SUSTAINED AT 47 MPH.
Dec 10, 12:11 AM MSTNON-TSTM WND GST 583 Ese Elk Mountain, WYCOUNTY ROAD 402 WYDOT SITE. PEAK GUST THUS FAR.
Dec 10, 12:21 AM MSTNON-TSTM WND GST 6411 Se Arlington, WYSTROUSS HILL WYDOT SITE. PEAK GUST THUS FAR. GUSTS HAVE BEEN ABOVE 58 MPH FROM 1121 PM AND 216 AM.
Dec 10, 1:06 AM MSTNON-TSTM WND GST 722 E Arlington, WYARLINGTON EAST WYDOT SITE. PEAK GUST THUS FAR. GUSTS HAVE BEEN ABOVE 58 MPH FROM 1031 PM THROUGH 206 AM.
Dec 10, 1:10 AM MSTNON-TSTM WND GST 697 Ese Arlington, WYCOOPER COVER WYDOT SITE. PEAK GUST THUS FAR. GUSTS HAVE BEEN ABOVE 58 MPH FROM 1045 PM AND 210 AM.
Dec 10, 1:11 AM MSTNON-TSTM WND GST 60Pumpkin Vine, WYPUMPKIN VINE WYDOT SITE. PEAK GUST THUS FAR.
Dec 10, 1:20 AM MSTNON-TSTM WND GST 715 Wnw Arlington, WYWAGONHOUND WYDOT SITE. PEAK GUST THUS FAR. GUSTS HAVE BEEN ABOVE 58 MPH FROM 1020 PM THROUGH 215 AM.
Dec 10, 1:40 AM MSTNON-TSTM WND GST 59Bordeaux, WYBORDEAUX WYDOT SITE. PEAK GUST WAS 60 MPH AT 145 AM.
Dec 10, 1:56 AM MSTNON-TSTM WND GST 643 Nw Arlington, WYFOOTE CREEK WYDOT SITE. PEAK GUST THUS FAR. GUSTS HAVE BEEN ABOVE 58 MPH FROM 1236 AM AND 206 AM.
Dec 10, 2:02 AM MSTNON-TSTM WND GST 59Vedauwoo, WYVEDAUWOO WYDOT SITE. PEAK GUST THUS FAR.
Dec 10, 3:35 AM MSTNON-TSTM WND GST 5918 Wnw Cheyenne, WY

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, 10.2 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 2012-12-09Temperature 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 12:00Z on 2012-12-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -31 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
822 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-31 m²/s²
0-3 km storm-relative helicity
41 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

264 
WWUS75 KCYS 092210
NPWCYS

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
310 PM MST SUN DEC 9 2012

...STRONG WINDS POSSIBLE IN THE WIND PRONE AREAS OF SOUTHEAST 
WYOMING LATE NIGHT THROUGH MONDAY MORNING...

.THE SURFACE PRESSURE GRADIENT WILL STRENGTHEN ACROSS SOUTHEAST
WYOMING TONIGHT IN ADVANCE OF A WEAK STORM SYSTEM MOVING
SOUTHEASTWARD OVER THE STATE. THIS WILL PRODUCE STRONG WESTERLY
WINDS IN THE WIND PRONE AREAS OF ARLINGTON...THE SOUTHERN LARAMIE
RANGE AND EASTERN FOOTHILLS...AND BORDEAUX FROM LATE TONIGHT
THROUGH MONDAY MORNING. AS THE PRESSURE GRADIENT BEGINS TO RELAX
BY MIDDAY MONDAY...WINDS WILL DIMINISH.

WYZ106-110-116-101015-
/O.UPG.KCYS.HW.A.0032.121210T0600Z-121210T1800Z/
/O.NEW.KCYS.HW.W.0043.121210T0600Z-121210T1800Z/
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SOUTH LARAMIE RANGE-
INCLUDING THE CITIES OF...BORDEAUX...ARLINGTON...ELK MOUNTAIN...
VEDAUWOO...BUFORD...PUMPKIN VINE
310 PM MST SUN DEC 9 2012

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

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 11 AM MST
MONDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. 

* TIMING...11 PM MST TONIGHT THROUGH 11 AM MST MONDAY.

* WINDS...WEST TO SOUTHWEST 35 TO 45 MPH WITH GUSTS TO 60 MPH.

* IMPACTS...STRONG WINDS AND SUDDEN GUSTS WILL MAKE TRAVEL
  HAZARDOUS ESPECIALLY FOR HIGH PROFILE OR LIGHTWEIGHT VEHICLES.
  DRIVERS OF THESE VEHICLES SHOULD DRIVE WITH CAUTION TONIGHT
  ESPECIALLY THROUGH THESE WIND PRONE AREAS ALONG INTERSTATE 80
  AND INTERSTATE 25.

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. FOR DETAILED ROAD
AND TRAVEL CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1.

&&

$$

WYZ117-101015-
/O.NEW.KCYS.HW.W.0043.121210T0600Z-121210T1800Z/
SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...HORSE CREEK...HARRIMAN...WHITAKER
310 PM MST SUN DEC 9 2012

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

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 11 AM MST
MONDAY. 

* TIMING...11 PM MST TONIGHT THROUGH 11 AM MST MONDAY.

* WINDS...WEST TO SOUTHWEST 35 TO 45 MPH WITH GUSTS TO 60 MPH.

* IMPACTS...STRONG WINDS AND SUDDEN GUSTS WILL MAKE TRAVEL
  HAZARDOUS ESPECIALLY FOR HIGH PROFILE OR LIGHTWEIGHT VEHICLES.
  DRIVERS OF THESE VEHICLES SHOULD DRIVE WITH CAUTION TONIGHT
  ESPECIALLY THROUGH THIS WIND PRONE AREA ALONG INTERSTATE 80.

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. FOR DETAILED ROAD
AND TRAVEL CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1.

&&

$$

RJM
2 follow-up statements
698 
WWUS75 KCYS 100953
NPWCYS

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
253 AM MST MON DEC 10 2012

...STRONG WINDS TO CONTINUE IN THE WIND PRONE AREAS OF SOUTHEAST
WYOMING THROUGH THE MORNING...

.A STRONG PRESSURE GRADIENT IS RESULTING IN STRONG WEST TO SOUTHWEST
WINDS ACROSS THE WIND PRONE AREAS OF SOUTHEAST WYOMING. WIND GUSTS
TO 65-70 MPH HAVE BEEN OBSERVED OVER THE PAST FEW HOURS IN THE
ARLINGTON AREA WITH GUSTS TO 60 MPH IN THE SOUTHERN LARAMIE RANGE
AND BORDEAUX AREAS. WINDS WILL BEGIN TO DIMINISH BY LATE MORNING
AS THE PRESSURE GRADIENT WEAKENS.

WYZ106-110-116-117-101800-
/O.CON.KCYS.HW.W.0043.000000T0000Z-121210T1800Z/
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...
VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN...
WHITAKER
253 AM MST MON DEC 10 2012

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

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

* TIMING...THROUGH 11 AM MST THIS MORNING.

* WINDS...WEST TO SOUTHWEST 35 TO 45 MPH WITH GUSTS TO 65 MPH.

* IMPACTS...STRONG WINDS AND SUDDEN GUSTS WILL MAKE TRAVEL
  HAZARDOUS ESPECIALLY FOR HIGH PROFILE OR LIGHTWEIGHT VEHICLES.
  DRIVERS OF THESE VEHICLES SHOULD DRIVE WITH CAUTION ESPECIALLY
  THROUGH THESE WIND PRONE AREAS ALONG INTERSTATE 80 AND
  INTERSTATE 25.

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. FOR DETAILED ROAD
AND TRAVEL CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1.

&&

$$

FINCH
491 
WWUS75 KCYS 101652
NPWCYS

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
952 AM MST MON DEC 10 2012


WYZ106-110-116-117-101800-
/O.CAN.KCYS.HW.W.0043.000000T0000Z-121210T1800Z/
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...
VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN...
WHITAKER
952 AM MST MON DEC 10 2012

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE HIGH
WIND WARNING. 

WINDS HAVE STEADILY DECREASED ACROSS THE WIND PRONE AREAS THIS
MORNING AND ARE EXPECTED TO REMAIN BELOW HIGH WIND CRITERIA
THROUGH THE REMAINDER OF THE MORNING. WILL GO AHEAD AND CANCEL THE
WARNING AS A RESULT. WEST WINDS WILL GUST AS HIGH AS 45 MPH
THROUGH THE NOON HOUR...THEN WILL EASE THROUGH THE AFTERNOON.

$$

RJM

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 9, 3:08 AM MSTHigh Wind WatchCYSAlbany, Carbon, Laramie, Platte12 hr

Nearby

High Wind Warnings in Wyoming, 2012Every high wind warning in 2012

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.