Alert archive / Wyoming / High Wind Warnings in 2012

High Wind Warning 1, NWS Cheyenne, WY

January 2, 20124 counties in Wyoming

NWS Cheyenne, WY issued this high wind warning at Jan 2, 2012, 2:08 PM MST for 4 counties in Wyoming. It took effect at Jan 3, 2012, 12:00 AM MST. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 2, 2012, 2:08 PM MST (21:08 UTC)
In effect from
Jan 3, 2012, 12:00 AM MST
Expired
Jan 3, 2012, 6:42 AM MST
In force
7 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 21:11 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.

The nearest sounding before it

Riverton, WY (KRIW), launched 12:00Z, 9.1 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 2012-01-02Temperature 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 2012-01-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 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
1572 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
282 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.

830 
WWUS75 KCYS 022108
NPWCYS

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
208 PM MST MON JAN 2 2012

...GUSTY WINDS TO RETURN TO PORTIONS OF SOUTHEAST WYOMING LATE
MONDAY NIGHT AND TUESDAY...

.A STRENGTHENING SURFACE PRESSURE GRADIENT COMBINED WITH STRONGER
WINDS ALOFT WILL RESULT IN ANOTHER PERIOD OF GUSTY WINDS TO
PORTIONS OF SOUTHEAST WYOMING. WEST TO SOUTHWEST WINDS WILL BEGIN
TO INCREASE LATE TONIGHT AND PERSIST THROUGH EARLY TUESDAY
AFTERNOON. WIND GUSTS MAY EXCEED 60 MPH DURING THAT TIME.

WYZ106-110-116-031200-
/O.UPG.KCYS.HW.A.0001.120103T0700Z-120103T2200Z/
/O.NEW.KCYS.HW.W.0001.120103T0700Z-120103T2200Z/
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
208 PM MST MON JAN 2 2012

...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM MST
TUESDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM MST
TUESDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. 


* TIMING...MIDNIGHT TONIGHT THROUGH 3 PM TUESDAY.

* WINDS...WEST TO SOUTHWEST BETWEEN 30 TO 40 MPH WITH GUSTS AROUND
  60 MPH.

* IMPACTS...TRAVEL IN HIGH PROFILE VEHICLES AND LIGHT TRAILERS MAY
  BECOME DIFFICULT. THIS INCLUDES INTERSTATE 80 NEAR ARLINGTON AND
  ON THE SUMMIT BETWEEN CHEYENNE AND LARAMIE...AS WELL AS
  INTERSTATE 25 IN SOUTHERN PLATTE COUNTY.


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.

&&

$$

TT
2 follow-up statements
093 
WWUS75 KCYS 031002
NPWCYS

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
302 AM MST TUE JAN 3 2012

...GUSTY WINDS OVER PORTIONS OF SOUTHEAST WYOMING TODAY...

.STRONG WEST TO SOUTHWEST WINDS TO PERSIST THROUGH EARLY TUESDAY
AFTERNOON. WIND GUSTS MAY REACH 60 MPH DURING THIS TIME. WINDS 
ARE EXPECTED TO DECREASE THIS AFTERNOON AS THE PRESSURE GRADIENT
RELAXES.


WYZ106-110-116-032200-
/O.CON.KCYS.HW.W.0001.000000T0000Z-120103T2200Z/
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
302 AM MST TUE JAN 3 2012

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM MST THIS
AFTERNOON...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM MST THIS
AFTERNOON. 

* TIMING...WINDS WILL BEGIN TO DECREASE THIS AFTERNOON.

* WINDS...WEST TO SOUTHWEST BETWEEN 30 TO 40 MPH WITH GUSTS 
  AROUND 60 MPH. 

* IMPACTS...TRAVEL IN HIGH PROFILE VEHICLES AND LIGHT TRAILERS 
  MAY BECOME DIFFICULT. THIS INCLUDES INTERSTATE 80 NEAR 
  ARLINGTON AND ON THE SUMMIT BETWEEN CHEYENNE AND LARAMIE...AS 
  WELL AS INTERSTATE 25 IN SOUTHERN PLATTE COUNTY. 

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.

&&

$$

LIEBL
412 
WWUS75 KCYS 031342
NPWCYS

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
642 AM MST TUE JAN 3 2012


.WINDY CONDITIONS TO CONTINUE ACROSS MUCH OF SOUTHEAST WYOMING
THIS MORNING...HOWEVER WIND STRENGTH WILL BE LESS THAN PREVIOUSLY
EXPECTED.

WYZ106-110-116-031445-
/O.CAN.KCYS.HW.W.0001.000000T0000Z-120103T2200Z/
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
642 AM MST TUE JAN 3 2012

...HIGH WIND WARNING IS CANCELLED...

WINDY CONDITIONS TO CONTINUE ACROSS MUCH OF SOUTHEAST WYOMING
THIS MORNING...HOWEVER WIND STRENGTH WILL BE LESS THAN PREVIOUSLY
EXPECTED. SUSTAINED WINDS OF 30 TO 40 MPH WITH GUSTS TO 50 MPH ARE
ARE NOT EXPECTED.

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


$$

LIEBL

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 1, 8:47 PM MSTHigh Wind WatchCYSAlbany, Carbon, Laramie, Platte17 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.