Alert archive / Wyoming / Blizzard Warnings in 2012

Blizzard Warning 2, NWS Cheyenne, WY

December 19, 2012Albany County, Carbon County, Laramie County, Wyoming

NWS Cheyenne, WY issued this blizzard warning at Dec 19, 2012, 2:38 PM MST for Albany County, Carbon County, Laramie County, Wyoming. It took effect at Dec 20, 2012, 2:00 AM MST. It was in force for 10 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
Dec 19, 2012, 2:38 PM MST (21:38 UTC)
In effect from
Dec 20, 2012, 2:00 AM MST
Expired
Dec 20, 2012, 11:57 AM MST
In force
10 hr
Issued by
NWS Cheyenne, WY

Counties Albany County, WY, Carbon County, WY, Laramie County, WY

The radar

The Cheyenne radar (KCYS), 93 km from the middle of the area, began a volume at 21:38 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 20, 2:00 AM MSTBLIZZARD13 Se Laramie, WYVEDAUWOO WYDOT SITE. WINDS 36 MPH WITH GUSTS TO 47 MPH. VISIBILITY FROM SITE .25 MILES.
Dec 20, 2:00 AM MSTBLIZZARD14 Wsw Cheyenne, WYEMKAY UPR SITE. WINDS 55 GUSTS TO 70 MPH. VISIBILITY FROM WYDOT CAMERA AT MM 345 NEAR ZERO.
Dec 20, 2:00 AM MSTBLIZZARD3 Ese Elk Mountain, WYCOUNTY ROAD 402 WYDOT SITE. WINDS 43 GUSTS TO 58 MPH. VISIBILITY FROM SITE .25 MILES.
Dec 20, 3:00 AM MSTBLIZZARD13 Se Laramie, WYVEDAUWOO WYDOT SITE. WINDS 37 MPH SUSTAINED WITH GUSTS TO 47 MPH. VISIBILITY REMAINED BELOW 1/4 MILE OVER THE PAST HOUR. LOWEST VISIBILITY REPORTED WAS .12 MILE.
Dec 20, 3:00 AM MSTBLIZZARD14 Wsw Cheyenne, WYEMKAY UPR SITE. SUSTAINED WINDS 53 MPH WITH GUSTS TO 65 MPH. WYDOT WEBCAM ON INTERSTATE 80 MM345 SHOWED NEAR ZERO VISIBILITIES.

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, 9.6 hours before the alert went out and 274 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 2012-12-19Temperature 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 2012-12-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 square meters per square second.1939587897117Sfc1 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
2375 m above ground
0-6 km bulk shear
97 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
-16 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.

864 
WWUS45 KCYS 192138
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
238 PM MST WED DEC 19 2012

...BRISK WINDS AND FLURRIES WILL END OVER THE SOUTHERN NEBRASKA
PANHANDLE THROUGH EARLY THIS EVENING...
...STRONG WINDS AND BLOWING SNOW ARE EXPECTED LATE TONIGHT AND
THURSDAY MORNING ALONG THE INTERSTATE 80 CORRIDOR EAST OF
ARLINGTON...

.THE PACIFIC STORM SYSTEM WAS OVER THE CENTRAL HIGH PLAINS EARLY
THIS AFTERNOON AND WILL CONTINUE TO MOVE EAST TONIGHT. THE STORM
WILL PRODUCE LIGHT SNOW OR FLURRIES AND BRISK WINDS THROUGH THE
EARLY EVENING OVER THE SOUTHERN PANHANDLE.

WEST TO NORTHWEST WINDS WILL BECOME STRONG LATE TONIGHT ALONG
THE INTERSTATE CORRIDOR EAST OF ARLINGTON. THE WINDS WILL BE 
PRODUCED IN PART BY A LARGE DIFFERENCE IN SURFACE PRESSURE 
ACROSS THE REGION. WINDS WILL GUST AS HIGH AS 55 MPH IN SOUTHEAST
WYOMING AND 45 MPH OVER THE SOUTHERN PANHANDLE LATE TONIGHT AND
THURSDAY MORNING. THOSE WINDS ALONG WITH THE NEW...DRY SNOW WILL
CREATE WIDESPREAD BLOWING AND DRIFTING SNOW...POOR VISIBILITIES
AND HAZARDOUS TRAVEL CONDITIONS. IN ADDITION...WIND CHILL VALUES
WILL BE WELL BELOW ZERO TONIGHT AND THURSDAY MORNING. 

WYZ117-118-201300-
/O.CAN.KCYS.WS.W.0010.000000T0000Z-121220T0100Z/
/O.NEW.KCYS.BZ.W.0002.121220T0900Z-121220T1900Z/
SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY-
INCLUDING THE CITIES OF...HORSE CREEK...HARRIMAN...WHITAKER...
CHEYENNE
238 PM MST WED DEC 19 2012

...BLIZZARD WARNING IN EFFECT FROM 2 AM TO NOON MST THURSDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT FROM 2 AM TO NOON MST THURSDAY. THE
WINTER STORM WARNING HAS BEEN CANCELLED. 

* TIMING...FROM 2 AM TO NOON THURSDAY.

* WINDS/VISIBILITIES...WEST TO NORTHWEST WINDS WILL GUST AS HIGH
  AS 55 MPH. THE STRONG WINDS AND THE NEW...DRY SNOW WILL COMBINE
  TO PRODUCE VISIBILITIES FREQUENTLY LESS THAN ONE QUARTER OF A
  MILE.

* IMPACTS...TRAVEL AND OUTDOOR ACTIVITIES WILL BE DIFFICULT AND
  HAZARDOUS. ROADS WILL BE SNOWPACKED AND SLICK...VISIBILITIES
  WILL BE VERY LOW AND WIND CHILL VALUES WILL BE WELL BELOW ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...
A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. BLOWING SNOW WITH STRONG WINDS AND POOR
VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE. FOR SPECIFIC ROAD AND TRAVEL
CONDITIONS IN WYOMING...DIAL 5 1 1. AVOID RAILROAD CROSSINGS IF
POSSIBLE...USE EXTREME CAUTION WHEN APPROACHING AND DRIVING OVER
RAILROAD CROSSINGS IF NOT ABLE TO AVOID THEM. 

&&

$$

NEZ054-WYZ119-201300-
/O.CAN.KCYS.WS.W.0010.000000T0000Z-121220T0100Z/
/O.NEW.KCYS.WW.Y.0021.121220T1100Z-121220T1900Z/
KIMBALL-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...KIMBALL...BURNS...CARPENTER...ALBIN...
PINE BLUFFS
238 PM MST WED DEC 19 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO NOON MST
THURSDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR BLOWING SNOW...WHICH IS IN EFFECT FROM 4 AM
TO NOON MST THURSDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED.

* TIMING...FROM 4 AM TO NOON THURSDAY.

* WINDS/VISIBILITIES...NORTHWEST WINDS WILL GUST AS HIGH AS 45
  MPH. THE COMBINATION OF THE STRONG WINDS AND NEW...DRY SNOW WILL
  CREATE VISIBILITIES FREQUENTLY TO ONE HALF MILE OR LESS. 

* IMPACTS...TRAVEL AND OUTDOOR ACTIVITIES WILL BE DIFFICULT AND
  HAZARDOUS. ROADS WILL BE SNOWPACKED AND SLICK...VISIBILITIES
  WILL BE VERY LOW AND WIND CHILL VALUES WILL BE WELL BELOW ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS... 
A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW
AROUND. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS AND
WHEN APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

$$

NEZ020-WYZ112-114-192245-
/O.CAN.KCYS.WS.W.0010.000000T0000Z-121220T0100Z/
BANNER-SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...HARRISBURG...CENTENNIAL...ALBANY...
WOODS LANDING
238 PM MST WED DEC 19 2012

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER
STORM WARNING. 

THE SNOW HAS ENDED OVER THE MOUNTAINS AND THE WINDS WILL CONTINUE
TO SLOWLY DECREASE. FOR THOSE REASONS...THE PREVIOUSLY ISSUED 
WINTER STORM WARNING HAS BEEN CANCELLED.  

$$

WYZ110-115-116-201300-
/O.NEW.KCYS.BZ.W.0002.121220T0900Z-121220T1900Z/
NORTH SNOWY RANGE FOOTHILLS-LARAMIE VALLEY-SOUTH LARAMIE RANGE-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN...LARAMIE...
VEDAUWOO...BUFORD...PUMPKIN VINE
238 PM MST WED DEC 19 2012

...BLIZZARD WARNING IN EFFECT FROM 2 AM TO NOON MST THURSDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT FROM 2 AM TO NOON MST THURSDAY. 

* TIMING...FROM 2 AM TO NOON THURSDAY. 

* WINDS/VISIBILITIES...WEST WINDS WILL GUST AS HIGH AS 55 MPH.
  THE STRONG WINDS AND THE NEW...DRY SNOW WILL COMBINE TO PRODUCE
  VISIBILITIES FREQUENTLY LESS THAN ONE QUARTER OF A MILE.

* IMPACTS...TRAVEL AND OUTDOOR ACTIVITIES WILL BE DIFFICULT AND
  HAZARDOUS. ROADS WILL BE SNOWPACKED AND SLICK...VISIBILITIES
  WILL BE VERY LOW AND WIND CHILL VALUES WILL BE WELL BELOW ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE. FOR SPECIFIC ROAD AND TRAVEL
CONDITIONS IN WYOMING...DIAL 5 1 1. AVOID RAILROAD CROSSINGS IF
POSSIBLE...USE EXTREME CAUTION WHEN APPROACHING AND DRIVING OVER
RAILROAD CROSSINGS IF NOT ABLE TO AVOID THEM.

&&

$$

NEZ055-201300-
/O.NEW.KCYS.WW.Y.0021.121220T1100Z-121220T1900Z/
/O.CON.KCYS.WS.W.0012.000000T0000Z-121220T0100Z/
CHEYENNE-
INCLUDING THE CITY OF...SIDNEY
238 PM MST WED DEC 19 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...
...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO NOON MST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR BLOWING SNOW...WHICH IS IN EFFECT FROM 4 AM
TO NOON MST THURSDAY. A WINTER STORM WARNING REMAINS IN EFFECT
UNTIL 6 PM MST THIS EVENING.

* TIMING...SNOW WILL CONTINUE INTO THE LATE AFTERNOON BEFORE 
  TAPERING OFF. 

* TOTAL SNOW ACCUMULATIONS...4 TO 7 INCHES.

* WINDS/VISIBILITIES...NORTH WINDS WILL GUST AS HIGH AS 40 MPH
  THROUGH THE AFTERNOON. THEN NORTHWEST WINDS WILL GUST AS HIGH AS
  45 MPH LATE TONIGHT AND THURSDAY MORNING. THOSE WINDS ALONG WITH
  THE NEW...DRY SNOW WILL PRODUCE VISIBILITIES FREQUENTLY ONE HALF
  MILE OR LESS IN BLOWING SNOW. 

* IMPACTS...ROADS WILL BE SNOW COVERED AND SLIPPERY AND 
  VISIBILITIES WILL BE SIGNIFICANTLY REDUCED. THESE CONDITIONS 
  WILL MAKE TRAVEL VERY DIFFICULT. 

  LATE TONIGHT AND THURSDAY MORNING TRAVEL AND OUTDOOR ACTIVITIES
  WILL BE DIFFICULT AND HAZARDOUS. ROADS WILL BE SNOWPACKED AND
  SLICK...VISIBILITIES WILL BE VERY LOW AND WIND CHILL VALUES WILL
  BE WELL BELOW ZERO. 

PRECAUTIONARY/PREPAREDNESS 
ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE
WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT
AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY
TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA
FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN
EMERGENCY.

A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW
AROUND. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS AND
WHEN APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

NEZ021-200100-
/O.CON.KCYS.WW.Y.0020.000000T0000Z-121220T0100Z/
MORRILL-
INCLUDING THE CITIES OF...BRIDGEPORT...BAYARD
238 PM MST WED DEC 19 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

* TIMING...SNOW WILL TAPER OFF LATE THIS AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...3 TO 5 INCHES.

* WINDS/VISIBILITIES...NORTH WINDS WILL GUST AS HIGH AS 40 MPH 
  THROUGH THE AFTERNOON. THE COMBINATION OF GUSTY WINDS AND 
  FALLING SNOW WILL PRODUCE VISIBILITIES TO ONE HALF MILE OR 
  LESS AT TIMES IN OPEN AREAS. 

* IMPACTS...ROADS WILL BE SNOW COVERED AND SLIPPERY AND 
  VISIBILITIES WILL BE REDUCED. THESE CONDITIONS WILL MAKE 
  MAKING TRAVEL VERY DIFFICULT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND
BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN
AREAS AND WHEN APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

WEILAND
6 follow-up statements
501 
WWUS45 KCYS 200124
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
624 PM MST WED DEC 19 2012

...STRONG WINDS AND BLOWING SNOW ARE EXPECTED LATE TONIGHT AND
THURSDAY MORNING ALONG THE INTERSTATE 80 CORRIDOR EAST OF
ARLINGTON...

.WEST TO NORTHWEST WINDS WILL BECOME STRONG LATE TONIGHT ALONG THE
INTERSTATE CORRIDOR EAST OF ARLINGTON. THE WINDS WILL BE PRODUCED
IN PART BY A LARGE DIFFERENCE IN SURFACE PRESSURE ACROSS THE
REGION. WINDS WILL GUST AS HIGH AS 55 MPH IN SOUTHEAST WYOMING AND
45 MPH OVER THE SOUTHERN PANHANDLE LATE TONIGHT AND THURSDAY
MORNING. THOSE WINDS ALONG WITH THE NEW...DRY SNOW WILL CREATE
WIDESPREAD BLOWING AND DRIFTING SNOW...POOR VISIBILITIES AND
HAZARDOUS TRAVEL CONDITIONS. 

WIND CHILL VALUES WILL BE WELL BELOW ZERO TONIGHT AND THURSDAY
MORNING...RANGING FROM 15 BELOW ZERO TO 30 BELOW ZERO WEST OF A
DOUGLAS TO CHEYENNE LINE...AND 10 BELOW ZERO TO 20 BELOW ZERO
ACROSS WESTERN NEBRASKA.

NEZ055-201400-
/O.EXP.KCYS.WS.W.0012.000000T0000Z-121220T0100Z/
/O.CON.KCYS.WW.Y.0021.121220T1100Z-121220T1900Z/
CHEYENNE-
INCLUDING THE CITY OF...SIDNEY
624 PM MST WED DEC 19 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO NOON
MST THURSDAY...
...WINTER STORM WARNING HAS EXPIRED...

THE WINTER STORM WARNING IS NO LONGER IN EFFECT. A WINTER WEATHER
ADVISORY REMAINS IN EFFECT FROM 4 AM TO NOON MST THURSDAY. 

* TIMING...4 AM TO NOON MST THURSDAY.

* WINDS/VISIBILITIES...NORTH WINDS WILL GUST AS HIGH AS 40 MPH 
  THROUGH THE AFTERNOON. THEN NORTHWEST WINDS WILL GUST AS HIGH 
  AS 45 MPH LATE TONIGHT AND THURSDAY MORNING. THOSE WINDS ALONG 
  WITH THE NEW...DRY SNOW WILL PRODUCE VISIBILITIES FREQUENTLY 
  ONE HALF MILE OR LESS IN BLOWING SNOW. 

* IMPACTS...ROADS WILL BE SNOW COVERED AND SLIPPERY AND 
  VISIBILITIES WILL BE SIGNIFICANTLY REDUCED. THESE CONDITIONS 
  WILL MAKE TRAVEL VERY DIFFICULT. 

  LATE TONIGHT AND THURSDAY MORNING TRAVEL AND OUTDOOR ACTIVITIES
  WILL BE DIFFICULT AND HAZARDOUS. ROADS WILL BE SNOWPACKED AND  
  SLICK...VISIBILITIES WILL BE VERY LOW AND WIND CHILL VALUES WILL
  BE WELL BELOW ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS... 

A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW
AROUND. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS AND
WHEN APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

NEZ021-200230-
/O.EXP.KCYS.WW.Y.0020.000000T0000Z-121220T0100Z/
MORRILL-
INCLUDING THE CITIES OF...BRIDGEPORT...BAYARD
624 PM MST WED DEC 19 2012

...WINTER WEATHER ADVISORY HAS EXPIRED...

THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. 

$$

WYZ110-115>118-201400-
/O.CON.KCYS.BZ.W.0002.121220T0900Z-121220T1900Z/
NORTH SNOWY RANGE FOOTHILLS-LARAMIE VALLEY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN...LARAMIE...
VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN...
WHITAKER...CHEYENNE
624 PM MST WED DEC 19 2012

...BLIZZARD WARNING REMAINS IN EFFECT FROM 2 AM TO NOON MST
THURSDAY...

A BLIZZARD WARNING REMAINS IN EFFECT FROM 2 AM TO NOON MST
THURSDAY. 

* TIMING...FROM 2 AM TO NOON THURSDAY.

* WINDS/VISIBILITIES...WEST WINDS WILL GUST AS HIGH AS 55 MPH. 
  THE STRONG WINDS AND THE NEW...DRY SNOW WILL COMBINE TO 
  PRODUCE VISIBILITIES FREQUENTLY LESS THAN ONE QUARTER OF A 
  MILE. 

* IMPACTS...TRAVEL AND OUTDOOR ACTIVITIES WILL BE DIFFICULT AND 
  HAZARDOUS. ROADS WILL BE SNOWPACKED AND SLICK...VISIBILITIES 
  WILL BE VERY LOW AND WIND CHILL VALUES WILL BE WELL BELOW 
  ZERO. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE. FOR SPECIFIC ROAD AND TRAVEL
CONDITIONS IN WYOMING...DIAL 5 1 1. AVOID RAILROAD CROSSINGS IF
POSSIBLE...USE EXTREME CAUTION WHEN APPROACHING AND DRIVING OVER
RAILROAD CROSSINGS IF NOT ABLE TO AVOID THEM.

&&

$$

NEZ054-WYZ119-201400-
/O.CON.KCYS.WW.Y.0021.121220T1100Z-121220T1900Z/
KIMBALL-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...KIMBALL...BURNS...CARPENTER...ALBIN...
PINE BLUFFS
624 PM MST WED DEC 19 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO NOON
MST THURSDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO NOON MST
THURSDAY. 

* TIMING...FROM 4 AM TO NOON THURSDAY.

* WINDS/VISIBILITIES...NORTHWEST WINDS WILL GUST AS HIGH AS 45 
  MPH. THE COMBINATION OF THE STRONG WINDS AND NEW...DRY SNOW 
  WILL CREATE VISIBILITIES FREQUENTLY TO ONE HALF MILE OR LESS. 

* IMPACTS...TRAVEL AND OUTDOOR ACTIVITIES WILL BE DIFFICULT AND 
  HAZARDOUS. ROADS WILL BE SNOWPACKED AND SLICK...VISIBILITIES 
  WILL BE VERY LOW AND WIND CHILL VALUES WILL BE WELL BELOW 
  ZERO. 

PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY
FOR BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO
STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING...
ESPECIALLY IN OPEN AREAS AND WHEN APPROACHING AND DRIVING OVER
RAILROAD CROSSINGS.

$$

RUBIN
316 
WWUS45 KCYS 200129
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
629 PM MST WED DEC 19 2012

...STRONG WINDS AND BLOWING SNOW ARE EXPECTED LATE TONIGHT AND
THURSDAY MORNING ALONG THE INTERSTATE 80 CORRIDOR EAST OF
ARLINGTON...

.WEST TO NORTHWEST WINDS WILL BECOME STRONG LATE TONIGHT ALONG
THE INTERSTATE CORRIDOR EAST OF ARLINGTON. THE WINDS WILL BE
PRODUCED IN PART BY A LARGE DIFFERENCE IN SURFACE PRESSURE ACROSS
THE REGION. WINDS WILL GUST AS HIGH AS 55 MPH IN SOUTHEAST
WYOMING AND 45 MPH OVER THE SOUTHERN PANHANDLE LATE TONIGHT AND
THURSDAY MORNING. THOSE WINDS ALONG WITH THE NEW...DRY SNOW WILL
CREATE WIDESPREAD BLOWING AND DRIFTING SNOW...POOR VISIBILITIES
AND HAZARDOUS TRAVEL CONDITIONS.

WIND CHILL VALUES WILL BE WELL BELOW ZERO TONIGHT AND THURSDAY
MORNING...RANGING FROM 15 BELOW ZERO TO 30 BELOW ZERO WEST OF A
DOUGLAS TO CHEYENNE LINE...AND 10 BELOW ZERO TO 20 BELOW ZERO
ACROSS WESTERN NEBRASKA.

WYZ110-115>118-201500-
/O.CON.KCYS.BZ.W.0002.121220T0900Z-121220T1900Z/
NORTH SNOWY RANGE FOOTHILLS-LARAMIE VALLEY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN...LARAMIE...
VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN...
WHITAKER...CHEYENNE
629 PM MST WED DEC 19 2012

...BLIZZARD WARNING REMAINS IN EFFECT FROM 2 AM TO NOON MST
THURSDAY...

A BLIZZARD WARNING REMAINS IN EFFECT FROM 2 AM TO NOON MST
THURSDAY. 

* TIMING...FROM 2 AM TO NOON THURSDAY.

* WINDS/VISIBILITIES...WEST WINDS WILL GUST AS HIGH AS 55 MPH. 
  THE STRONG WINDS AND THE NEW...DRY SNOW WILL COMBINE TO 
  PRODUCE VISIBILITIES FREQUENTLY LESS THAN ONE QUARTER OF A 
  MILE. 

* IMPACTS...TRAVEL AND OUTDOOR ACTIVITIES WILL BE DIFFICULT AND 
  HAZARDOUS. ROADS WILL BE SNOWPACKED AND SLICK...VISIBILITIES 
  WILL BE VERY LOW AND WIND CHILL VALUES WILL BE WELL BELOW 
  ZERO. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST...HAVE A WINTER SURVIVAL KIT WITH YOU. 

IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. FOR SPECIFIC ROAD
AND TRAVEL CONDITIONS IN WYOMING...DIAL 5 1 1. AVOID RAILROAD
CROSSINGS IF POSSIBLE...USE EXTREME CAUTION WHEN APPROACHING AND
DRIVING OVER RAILROAD CROSSINGS IF NOT ABLE TO AVOID THEM.

&&

$$

NEZ054-055-WYZ119-201500-
/O.CON.KCYS.WW.Y.0021.121220T1100Z-121220T1900Z/
KIMBALL-CHEYENNE-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...KIMBALL...SIDNEY...BURNS...CARPENTER...
ALBIN...PINE BLUFFS
629 PM MST WED DEC 19 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO NOON
MST THURSDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO NOON MST
THURSDAY. 

* TIMING...FROM 4 AM TO NOON THURSDAY.

* WINDS/VISIBILITIES...NORTHWEST WINDS WILL GUST AS HIGH AS 45 
  MPH. THE COMBINATION OF THE STRONG WINDS AND NEW...DRY SNOW 
  WILL CREATE VISIBILITIES FREQUENTLY TO ONE HALF MILE OR LESS. 

* IMPACTS...TRAVEL AND OUTDOOR ACTIVITIES WILL BE DIFFICULT AND 
  HAZARDOUS. ROADS WILL BE SNOWPACKED AND SLICK...VISIBILITIES 
  WILL BE VERY LOW AND WIND CHILL VALUES WILL BE WELL BELOW 
  ZERO. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW
AROUND. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS AND
WHEN APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

$$

RUBIN
507 
WWUS45 KCYS 200434
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
934 PM MST WED DEC 19 2012

...STRONG WINDS AND BLOWING SNOW ARE EXPECTED LATE TONIGHT AND
THURSDAY MORNING ALONG THE INTERSTATE 80 CORRIDOR EAST OF
ARLINGTON...

.WEST TO NORTHWEST WINDS WILL BECOME STRONG LATE TONIGHT ALONG
THE INTERSTATE CORRIDOR EAST OF ARLINGTON. THE WINDS WILL BE
PRODUCED IN PART BY A LARGE DIFFERENCE IN SURFACE PRESSURE ACROSS
THE REGION. WINDS WILL GUST AS HIGH AS 55 MPH IN SOUTHEAST
WYOMING AND 45 MPH OVER THE SOUTHERN PANHANDLE LATE TONIGHT AND
THURSDAY MORNING. THOSE WINDS ALONG WITH THE NEW...DRY SNOW WILL
CREATE WIDESPREAD BLOWING AND DRIFTING SNOW...POOR VISIBILITIES
AND HAZARDOUS TRAVEL CONDITIONS.

WIND CHILL VALUES WILL BE WELL BELOW ZERO TONIGHT AND THURSDAY
MORNING...RANGING FROM 20 BELOW ZERO TO 40 BELOW ZERO WEST OF A
DOUGLAS TO CHEYENNE LINE...AND 10 BELOW ZERO TO 25 BELOW ZERO
ELSEWHERE. THESE DANGEROUSLY COLD WIND CHILL TEMPERATURES CAN
INDUCE FROSTBITE AND HYPOTHERMIA IN A SHORT TIME IF YOUR SKIN
IS NOT ADEQUATELY PROTECTED FROM THE COLD. 

WYZ110-115>118-201600-
/O.CON.KCYS.BZ.W.0002.121220T0900Z-121220T1900Z/
NORTH SNOWY RANGE FOOTHILLS-LARAMIE VALLEY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN...LARAMIE...
VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN...
WHITAKER...CHEYENNE
934 PM MST WED DEC 19 2012

...BLIZZARD WARNING REMAINS IN EFFECT FROM 2 AM TO NOON MST
THURSDAY...

A BLIZZARD WARNING REMAINS IN EFFECT FROM 2 AM TO NOON MST
THURSDAY. 

* TIMING...FROM 2 AM TO NOON THURSDAY.

* WINDS/VISIBILITIES...WEST WINDS WILL GUST AS HIGH AS 55 MPH. 
  THE STRONG WINDS AND THE NEW...DRY SNOW WILL COMBINE TO 
  PRODUCE VISIBILITIES FREQUENTLY LESS THAN ONE QUARTER OF A 
  MILE. 

* IMPACTS...TRAVEL AND OUTDOOR ACTIVITIES WILL BE DIFFICULT AND 
  HAZARDOUS. ROADS WILL BE SNOWPACKED AND SLICK...VISIBILITIES 
  WILL BE VERY LOW AND WIND CHILL VALUES WILL BE WELL BELOW 
  ZERO. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST...HAVE A WINTER SURVIVAL KIT WITH YOU.

IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. FOR SPECIFIC ROAD
AND TRAVEL CONDITIONS IN WYOMING...DIAL 5 1 1. AVOID RAILROAD
CROSSINGS IF POSSIBLE...USE EXTREME CAUTION WHEN APPROACHING AND
DRIVING OVER RAILROAD CROSSINGS IF NOT ABLE TO AVOID THEM.

&&

$$

NEZ054-055-WYZ119-201600-
/O.CON.KCYS.WW.Y.0021.121220T1100Z-121220T1900Z/
KIMBALL-CHEYENNE-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...KIMBALL...SIDNEY...BURNS...CARPENTER...
ALBIN...PINE BLUFFS
934 PM MST WED DEC 19 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO NOON
MST THURSDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO NOON MST
THURSDAY FOR BLOWING SNOW.

* TIMING...FROM 4 AM TO NOON THURSDAY.

* WINDS/VISIBILITIES...NORTHWEST WINDS WILL GUST AS HIGH AS 45 
  MPH. THE COMBINATION OF THE STRONG WINDS AND NEW...DRY SNOW 
  WILL CREATE VISIBILITIES FREQUENTLY TO ONE HALF MILE OR LESS. 

* IMPACTS...TRAVEL AND OUTDOOR ACTIVITIES WILL BE DIFFICULT AND 
  HAZARDOUS. ROADS WILL BE SNOWPACKED AND SLICK...VISIBILITIES 
  WILL BE VERY LOW AND WIND CHILL VALUES WILL BE WELL BELOW 
  ZERO. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW
AROUND. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS
AND WHEN APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

$$

RUBIN
011 
WWUS45 KCYS 200859
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
159 AM MST THU DEC 20 2012

...STRONG WINDS AND BLOWING SNOW ARE EXPECTED MAINLY THIS MORNING 
ALONG PARTS OF THE INTERSTATE 80 CORRIDOR...

.STRONG AND GUSTY WEST TO NORTHWEST WINDS ARE OCCURRING ALONG
PARTS OF THE INTERSTATE 80 CORRIDOR EAST OF ARLINGTON TO JUST
WEST OF CHEYENNE. THESE WINDS WILL PERSIST WHILE SPREADING
EASTWARD INTO THE SOUTHERN NEBRASKA PANHANDLE THIS MORNING. THE
WINDS ALONG WITH THE NEW...DRY SNOW WILL CREATE WIDESPREAD BLOWING
AND DRIFTING SNOW...POOR VISIBILITIES AND HAZARDOUS TRAVEL
CONDITIONS....ESPECIALLY OVER FAR SOUTHEAST WYOMING.

WYZ110-115>118-201900-
/O.CON.KCYS.BZ.W.0002.121220T0900Z-121220T1900Z/
NORTH SNOWY RANGE FOOTHILLS-LARAMIE VALLEY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN...LARAMIE...
VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN...
WHITAKER...CHEYENNE
159 AM MST THU DEC 20 2012

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY...

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY. 

* TIMING...UNTIL NOON TODAY.

* WINDS/VISIBILITIES...WEST WINDS WILL GUST FROM 45 TO 55 MPH. THE
  STRONG WINDS AND THE NEW...DRY SNOW WILL COMBINE TO PRODUCE
  VISIBILITIES FREQUENTLY LESS THAN ONE QUARTER OF A MILE
  ESPECIALLY IN OPEN AREAS DUE TO BLOWING AND DRIFTING SNOW.

* IMPACTS...TRAVEL AND OUTDOOR ACTIVITIES WILL BE DIFFICULT AND
  HAZARDOUS. ROADS WILL BE SNOWPACKED AND SLICK WITH VISIBILITIES
  VERY LOW IN SOME AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. BLOWING SNOW WITH STRONG WINDS AND POOR
VISIBILITIES ARE LIKELY. THIS WILL LEAD TO LOCAL WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST...HAVE A WINTER SURVIVAL KIT WITH YOU.

IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. FOR SPECIFIC ROAD
AND TRAVEL CONDITIONS IN WYOMING...DIAL 5 1 1. AVOID RAILROAD
CROSSINGS IF POSSIBLE...USE EXTREME CAUTION WHEN APPROACHING AND
DRIVING OVER RAILROAD CROSSINGS IF NOT ABLE TO AVOID THEM.

&&

$$

NEZ054-055-WYZ119-201900-
/O.CON.KCYS.WW.Y.0021.121220T1100Z-121220T1900Z/
KIMBALL-CHEYENNE-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...KIMBALL...SIDNEY...BURNS...CARPENTER...
ALBIN...PINE BLUFFS
159 AM MST THU DEC 20 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST
TODAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY.

* TIMING...FROM 4 AM TO NOON TODAY.

* WINDS/VISIBILITIES...NORTHWEST WINDS WILL GUST AS HIGH AS 40 MPH.
  THE COMBINATION OF THE STRONG WINDS AND NEW...DRY SNOW WILL
  CREATE VISIBILITIES FREQUENTLY TO ONE HALF MILE OR LESS.

* IMPACTS...TRAVEL AND OUTDOOR ACTIVITIES WILL BE DIFFICULT AND
  HAZARDOUS. ROADS WILL BE SNOWPACKED AND SLICK WITH VISIBILITIES
  LOW IN SOME AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW
AROUND. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS
AND WHEN APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

$$
822 
WWUS45 KCYS 201714
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1014 AM MST THU DEC 20 2012

...STRONG WINDS AND BLOWING SNOW ARE EXPECTED TO CONTINUE FOR THE 
NEXT FEW HOURS ALONG INTERSTATE 80 BETWEEN LARAMIE AND CHEYENNE...

.STRONG AND GUSTY WEST TO NORTHWEST WINDS ARE OCCURRING ALONG
PARTS OF THE INTERSTATE 80 CORRIDOR EAST OF ARLINGTON TO JUST
WEST OF CHEYENNE. THESE WINDS WILL PERSIST THROUGH THE EARLY
AFTERNOON. THE WINDS ALONG WITH THE NEW...DRY SNOW WILL CREATE
WIDESPREAD BLOWING AND DRIFTING SNOW...POOR VISIBILITIES AND
HAZARDOUS TRAVEL CONDITIONS....BETWEEN LARAMIE AND CHEYENNE.

WYZ110-115-201815-
/O.CAN.KCYS.BZ.W.0002.000000T0000Z-121220T1900Z/
NORTH SNOWY RANGE FOOTHILLS-LARAMIE VALLEY-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN...LARAMIE
1014 AM MST THU DEC 20 2012

...BLIZZARD WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE
BLIZZARD WARNING. 

SOME AREAS OF BLOWING SNOW WILL BE POSSIBLE BETWEEN ARLINGTON AND
LARAMIE THROUGH THE AFTERNOON BUT BLIZZARD CONDITIONS ARE NOT
EXPECTED AT THIS TIME.

$$

NEZ054-055-WYZ119-201815-
/O.CAN.KCYS.WW.Y.0021.000000T0000Z-121220T1900Z/
KIMBALL-CHEYENNE-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...KIMBALL...SIDNEY...BURNS...CARPENTER...
ALBIN...PINE BLUFFS
1014 AM MST THU DEC 20 2012

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER
WEATHER ADVISORY. 

PATCHY AREAS OF BLOWING SNOW WILL BE POSSIBLE IN OPEN AREAS OF THE
SOUTHERN NEBRASKA PANHANDLE BUT WIDESPREAD BLOWING SNOW IS NOT
EXPECTED AT THIS TIME.

$$

WYZ116>118-201900-
/O.CON.KCYS.BZ.W.0002.000000T0000Z-121220T1900Z/
SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-
INCLUDING THE CITIES OF...VEDAUWOO...BUFORD...PUMPKIN VINE...
HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE
1014 AM MST THU DEC 20 2012

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY...

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY. 

* TIMING...UNTIL NOON TODAY.

* WINDS/VISIBILITIES...WEST WINDS WILL GUST FROM 45 TO 55 MPH. 
  THE STRONG WINDS AND THE NEW...DRY SNOW WILL COMBINE TO 
  PRODUCE VISIBILITIES FREQUENTLY LESS THAN ONE QUARTER OF A 
  MILE ESPECIALLY IN OPEN AREAS DUE TO BLOWING AND DRIFTING 
  SNOW. 

* IMPACTS...TRAVEL AND OUTDOOR ACTIVITIES WILL BE DIFFICULT AND
  HAZARDOUS...ESPECIALLY TRAVEL ALONG INTERSTATE 80 FROM LARAMIE
  TO CHEYENNE. ROADS WILL BE SNOWPACKED AND SLICK WITH VISIBILITIES VERY
  LOW IN SOME AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. BLOWING SNOW WITH STRONG WINDS AND POOR
VISIBILITIES ARE LIKELY. THIS WILL LEAD TO LOCAL WHITEOUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF
YOU MUST...HAVE A WINTER SURVIVAL KIT WITH YOU.

IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. FOR SPECIFIC ROAD
AND TRAVEL CONDITIONS IN WYOMING...DIAL 5 1 1. AVOID RAILROAD
CROSSINGS IF POSSIBLE...USE EXTREME CAUTION WHEN APPROACHING AND
DRIVING OVER RAILROAD CROSSINGS IF NOT ABLE TO AVOID THEM.

&&

$$

FINCH
917 
WWUS45 KCYS 201857
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1157 AM MST THU DEC 20 2012

...AREAS OF BLOWING SNOW AND STRONG WINDS EXPECTED ALONG
INTERSTATE 80 BETWEEN LARAMIE AND CHEYENNE...

.STRONG WESTERLY WIND GUSTS TO 55 MPH WILL COMBINE WITH NEW SNOW
ON THE GROUND TO PRODUCE BLOWING SNOW AND REDUCED VISIBILITIES
THROUGH THE EARLY AFTERNOON ALONG INTERSTATE 80 BETWEEN LARAMIE
AND CHEYENNE. THE WINDS ARE EXPECTED TO DECREASE BY LATE AFTERNOON
AND THE BLOWING SNOW WILL DIMINISH.

WYZ116>118-202200-
/O.CAN.KCYS.BZ.W.0002.000000T0000Z-121220T1900Z/
/O.NEW.KCYS.WW.Y.0022.121220T1857Z-121220T2200Z/
SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-
INCLUDING THE CITIES OF...VEDAUWOO...BUFORD...PUMPKIN VINE...
HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE
1157 AM MST THU DEC 20 2012

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 3 PM MST THIS
AFTERNOON...
...BLIZZARD WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR BLOWING SNOW...WHICH IS IN EFFECT UNTIL 3 PM MST
THIS AFTERNOON. THE BLIZZARD WARNING HAS BEEN CANCELLED.

* TIMING...UNTIL 3 PM MST THIS AFTERNOON.

* WINDS/VISIBILITIES...WEST WINDS WILL GUST UP TO 55 MPH. THE
  STRONG WINDS AND THE NEW...DRY SNOW WILL COMBINE TO PRODUCE
  VISIBILITIES LESS THAN ONE HALF MILE AT TIMES...ESPECIALLY IN OPEN
  AREAS DUE TO BLOWING AND DRIFTING SNOW.

* IMPACTS...TRAVEL AND OUTDOOR ACTIVITIES WILL BE DIFFICULT AND
  HAZARDOUS...ESPECIALLY TRAVEL ALONG INTERSTATE 80 FROM LARAMIE
  TO CHEYENNE. ROADS WILL BE SNOWPACKED AND SLICK WITH
  VISIBILITIES VERY LOW IN SOME AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT VISIBILITIES
WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW AROUND. USE
CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS AND WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

FINCH

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 19, 2:38 PM MSTWinter Weather AdvisoryCYSLaramie20 hr

Nearby

Blizzard Warnings in Wyoming, 2012Every blizzard 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.