Alert archive / Nebraska / Wind Chill Advisories in 2014

Wind Chill Advisory 13, NWS Cheyenne, WY

December 29, 20148 counties in Nebraska; 5 counties in Wyoming

NWS Cheyenne, WY issued this wind chill advisory at Dec 29, 2014, 2:53 AM MST for 8 counties in Nebraska; 5 counties in Wyoming. It took effect at Dec 29, 2014, 6:00 PM MST. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued
Dec 29, 2014, 2:53 AM MST (09:53 UTC)
In effect from
Dec 29, 2014, 6:00 PM MST
Expired
Dec 30, 2014, 12:00 PM MST
In force
18 hr
Issued by
NWS Cheyenne, WY

Counties Banner County, NE, Box Butte County, NE, Cheyenne County, NE, Dawes County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Sioux County, NE, Albany County, WY, Goshen County, WY, Laramie County, WY, Niobrara County, WY, Platte County, WY

The radar

The Cheyenne radar (KCYS), 113 km from the middle of the area, began a volume at 09:52 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

Denver, CO (KDEN), launched 00:00Z, 9.9 hours before the alert went out and 238 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, Denver, CO at 00:00Z on 2014-12-29Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2014-12-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 square meters per square second.1939587897Sfc1 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
2008 m above ground
0-6 km bulk shear
83 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
100 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.

269 
WWUS45 KCYS 290953
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
253 AM MST MON DEC 29 2014

...AN ARCTIC COLD FRONT WILL BRING BITTER COLD WIND CHILLS AND
MORE SNOW TO THE REGION THROUGH TUESDAY...

.A STRONG ARCTIC COLD FRONT WILL MOVE ACROSS THE REMAINDER OF 
SOUTHEAST WYOMING EARLY THIS MORNING. PERIODS OF SNOW WILL
CONTINUE THIS MORNING WITH ADDITIONAL LIGHT SNOW ACCUMULATIONS
EXPECTED. FRIGID TEMPERATURES WILL MOVE INTO THE AREA BY TONIGHT
AS AIR TEMPERATURES DROP BELOW ZERO. BREEZY EAST TO NORTHEAST
WINDS WILL RESULT IN DANGEROUS WIND CHILL VALUES TONIGHT...AND
LIKELY THROUGH TUESDAY NIGHT AS WELL. 

WYZ101-103>105-109>114-292300-
/O.NEW.KCYS.WC.W.0006.141230T0100Z-141230T1900Z/
/O.CON.KCYS.WW.Y.0033.000000T0000Z-141230T0000Z/
CONVERSE COUNTY LOWER ELEVATIONS-NORTH LARAMIE RANGE-
FERRIS/SEMINOE/SHIRLEY MOUNTAINS-SHIRLEY BASIN-
CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS-
SOUTHWEST CARBON COUNTY-SIERRA MADRE RANGE-
UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-
INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...MUDDY GAP...
MEDICINE BOW...RAWLINS...SINCLAIR...HANNA...ARLINGTON...
ELK MOUNTAIN...BAGGS...DIXON...SARATOGA...ENCAMPMENT...
RIVERSIDE...CENTENNIAL...ALBANY...WOODS LANDING
253 AM MST MON DEC 29 2014

...WIND CHILL WARNING IN EFFECT FROM 6 PM THIS EVENING TO NOON
MST TUESDAY...

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO NOON MST
TUESDAY. 

* SNOWFALL...PERIODS OF SNOW WILL CONTINUE THIS MORNING WITH AN
  ADDITIONAL 1 TO 2 INCHES EXPECTED THROUGH NOON MONDAY. 

* WIND CHILL VALUES...WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO
  THIS AFTERNOON WILL QUICKLY LOWER BETWEEN 25 BELOW TO 40 BELOW
  ZERO TONIGHT. 

* IMPACTS...PRIMARILY TRAVEL DIFFICULTIES WITH SLICK ROADWAYS.
  BITTER COLD TEMPERATURES AND GUSTY WINDS WILL RESULT IN WIND
  CHILL VALUES FALLING BELOW 30 BELOW ZERO TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

WYZ106-115-116-292300-
/O.NEW.KCYS.WC.W.0006.141230T0100Z-141230T1900Z/
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-LARAMIE VALLEY-
SOUTH LARAMIE RANGE-
INCLUDING THE CITIES OF...BORDEAUX...LARAMIE...VEDAUWOO...
BUFORD...PUMPKIN VINE
253 AM MST MON DEC 29 2014

...WIND CHILL WARNING IN EFFECT FROM 6 PM THIS EVENING TO NOON
MST TUESDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO NOON MST
TUESDAY. 

* WIND CHILL VALUES...30 BELOW TO 40 BELOW ZERO. LOCATIONS IN THE
  LARAMIE VALLEY MAY SEE WIND CHILLS AS LOW AS 50 BELOW ZERO LATE
  TONIGHT WITH EAST WINDS BETWEEN 10 TO 15 MPH.

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 5
  TO 10 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN LAYERS
  IF THEY MUST VENTURE OUTDOORS TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

WYZ102-292300-
/O.NEW.KCYS.WC.Y.0013.141230T0100Z-141230T1900Z/
/O.CON.KCYS.WW.Y.0033.000000T0000Z-141230T0000Z/
NIOBRARA COUNTY-
INCLUDING THE CITY OF...LUSK
253 AM MST MON DEC 29 2014

...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON
MST TUESDAY...

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO NOON MST
TUESDAY. 

* SNOWFALL...PERIODS OF SNOW WILL CONTINUE THIS MORNING WITH
  ADDITIONAL SNOW ACCUMULATIONS AROUND ONE INCH.

* WIND CHILL VALUES...WIND CHILLS BETWEEN 5 BELOW TO 15 BELOW
  ZERO THIS AFTERNOON WILL LOWER BETWEEN 20 BELOW TO 25 BELOW ZERO
  TONIGHT.

* IMPACTS...PRIMARILY TRAVEL DIFFICULTIES WITH SLICK ROADWAYS.
  BITTER COLD TEMPERATURES AND GUSTY WINDS WILL RESULT IN WIND
  CHILL VALUES FALLING BELOW 20 BELOW ZERO TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN
THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE
AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

NEZ002-003-019>021-054-055-095-096-WYZ107-108-117>119-292300-
/O.NEW.KCYS.WC.Y.0013.141230T0100Z-141230T1900Z/
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-EAST PLATTE COUNTY-GOSHEN COUNTY-
SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY-
EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF...
GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...
HARRISON...AGATE...GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...
TORRINGTON...HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE...
BURNS...CARPENTER...ALBIN...PINE BLUFFS
253 AM MST MON DEC 29 2014

...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON
MST TUESDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO NOON MST
TUESDAY. 

* WIND CHILL VALUES...RANGING FROM 20 BELOW TO 30 BELOW ZERO
  TONIGHT. NORTHEAST WINDS MAY GUST OVER 20 MPH
  TONIGHT...RESULTING IN WIND CHILLS DROPPING TO 35 BELOW AT
  TIMES.

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 20
  TO 30 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN LAYERS
  IF THEY MUST VENTURE OUTDOORS TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN
THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE
AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

TT
7 follow-up statements
281 
WWUS45 KCYS 291433
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
733 AM MST MON DEC 29 2014

...AN ARCTIC COLD FRONT WILL BRING BITTER COLD WIND CHILLS AND
MORE SNOW TO THE REGION THROUGH TUESDAY...

.A STRONG ARCTIC COLD FRONT WILL MOVE ACROSS THE REMAINDER OF
SOUTHEAST WYOMING EARLY THIS MORNING. PERIODS OF SNOW WILL
CONTINUE THIS MORNING WITH ADDITIONAL LIGHT SNOW ACCUMULATIONS
EXPECTED. FRIGID TEMPERATURES WILL MOVE INTO THE AREA BY TONIGHT
AS AIR TEMPERATURES DROP BELOW ZERO. BREEZY EAST TO NORTHEAST
WINDS WILL RESULT IN DANGEROUS WIND CHILL VALUES TONIGHT...AND
LIKELY THROUGH TUESDAY NIGHT AS WELL.

WYZ101-103>105-109>114-292245-
/O.CON.KCYS.WC.W.0006.141230T0100Z-141230T1900Z/
/O.CON.KCYS.WW.Y.0033.000000T0000Z-141230T0000Z/
CONVERSE COUNTY LOWER ELEVATIONS-NORTH LARAMIE RANGE-
FERRIS/SEMINOE/SHIRLEY MOUNTAINS-SHIRLEY BASIN-
CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS-
SOUTHWEST CARBON COUNTY-SIERRA MADRE RANGE-
UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-
INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...MUDDY GAP...
MEDICINE BOW...RAWLINS...SINCLAIR...HANNA...ARLINGTON...
ELK MOUNTAIN...BAGGS...DIXON...SARATOGA...ENCAMPMENT...
RIVERSIDE...CENTENNIAL...ALBANY...WOODS LANDING
733 AM MST MON DEC 29 2014

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
NOON MST TUESDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO NOON MST
TUESDAY.

* SNOWFALL...PERIODS OF SNOW WILL CONTINUE THIS MORNING WITH AN
  ADDITIONAL 1 TO 2 INCHES EXPECTED TODAY.

* WIND CHILL VALUES...WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO 
  THIS AFTERNOON WILL QUICKLY LOWER BETWEEN 25 BELOW TO 40 BELOW 
  ZERO TONIGHT. 

* IMPACTS...PRIMARILY TRAVEL DIFFICULTIES WITH SLICK ROADWAYS. 
  BITTER COLD TEMPERATURES AND GUSTY WINDS WILL RESULT IN WIND 
  CHILL VALUES FALLING BELOW 30 BELOW ZERO TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

WYZ106-292245-
/O.EXA.KCYS.WW.Y.0033.000000T0000Z-141230T0000Z/
/O.CON.KCYS.WC.W.0006.141230T0100Z-141230T1900Z/
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
INCLUDING THE CITY OF...BORDEAUX
733 AM MST MON DEC 29 2014

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
NOON MST TUESDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 5 PM MST
THIS AFTERNOON.

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO NOON MST
TUESDAY.

* SNOWFALL...PERIODS OF SNOW WILL CONTINUE THIS MORNING WITH AN
  ADDITIONAL 1 TO 2 INCHES EXPECTED TODAY.

* WIND CHILL VALUES...WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO 
  THIS AFTERNOON WILL QUICKLY LOWER BETWEEN 25 BELOW TO 40 BELOW 
  ZERO TONIGHT. 

* IMPACTS...PRIMARILY TRAVEL DIFFICULTIES WITH SLICK ROADWAYS. 
  BITTER COLD TEMPERATURES AND GUSTY WINDS WILL RESULT IN WIND 
  CHILL VALUES FALLING BELOW 30 BELOW ZERO TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

WYZ115-116-292245-
/O.CON.KCYS.WC.W.0006.141230T0100Z-141230T1900Z/
LARAMIE VALLEY-SOUTH LARAMIE RANGE-
INCLUDING THE CITIES OF...LARAMIE...VEDAUWOO...BUFORD...
PUMPKIN VINE
733 AM MST MON DEC 29 2014

...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
NOON MST TUESDAY...

* WIND CHILL VALUES...30 BELOW TO 40 BELOW ZERO. LOCATIONS IN 
  THE LARAMIE VALLEY MAY SEE WIND CHILLS AS LOW AS 50 BELOW ZERO 
  LATE TONIGHT WITH EAST WINDS BETWEEN 10 TO 15 MPH. 

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 
  5 TO 10 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER 
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN 
  LAYERS IF THEY MUST VENTURE OUTDOORS TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

WYZ102-292245-
/O.CON.KCYS.WW.Y.0033.000000T0000Z-141230T0000Z/
/O.CON.KCYS.WC.Y.0013.141230T0100Z-141230T1900Z/
NIOBRARA COUNTY-
INCLUDING THE CITY OF...LUSK
733 AM MST MON DEC 29 2014

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON MST TUESDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO NOON MST
TUESDAY.

* SNOWFALL...PERIODS OF SNOW WILL CONTINUE THIS MORNING WITH 
  ADDITIONAL SNOW ACCUMULATIONS AROUND ONE INCH. 

* WIND CHILL VALUES...WIND CHILLS BETWEEN 5 BELOW TO 15 BELOW 
  ZERO THIS AFTERNOON WILL LOWER BETWEEN 20 BELOW TO 25 BELOW 
  ZERO TONIGHT. 

* IMPACTS...PRIMARILY TRAVEL DIFFICULTIES WITH SLICK ROADWAYS. 
  BITTER COLD TEMPERATURES AND GUSTY WINDS WILL RESULT IN WIND 
  CHILL VALUES FALLING BELOW 20 BELOW ZERO TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN
THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE
AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

NEZ002-003-019>021-054-055-095-096-WYZ107-108-117>119-292245-
/O.CON.KCYS.WC.Y.0013.141230T0100Z-141230T1900Z/
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-EAST PLATTE COUNTY-GOSHEN COUNTY-
SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY-
EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF...
GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...
HARRISON...AGATE...GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...
TORRINGTON...HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE...
BURNS...CARPENTER...ALBIN...PINE BLUFFS
733 AM MST MON DEC 29 2014

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON MST TUESDAY...

* WIND CHILL VALUES...RANGING FROM 20 BELOW TO 30 BELOW ZERO 
  TONIGHT. NORTHEAST WINDS MAY GUST OVER 20 MPH TONIGHT... 
  RESULTING IN WIND CHILLS DROPPING TO 35 BELOW AT TIMES. 

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 
  20 TO 30 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER 
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN 
  LAYERS IF THEY MUST VENTURE OUTDOORS TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN
THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE
AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

HAHN
730 
WWUS45 KCYS 291506
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
806 AM MST MON DEC 29 2014

...AN ARCTIC COLD FRONT WILL BRING BITTER COLD WIND CHILLS AND
MORE SNOW TO THE REGION THROUGH TUESDAY...

.A STRONG ARCTIC COLD FRONT WILL MOVE ACROSS THE REMAINDER OF
SOUTHEAST WYOMING EARLY THIS MORNING. PERIODS OF SNOW WILL
CONTINUE THIS MORNING WITH ADDITIONAL LIGHT SNOW ACCUMULATIONS
EXPECTED. FRIGID TEMPERATURES WILL MOVE INTO THE AREA BY TONIGHT
AS AIR TEMPERATURES DROP BELOW ZERO. BREEZY EAST TO NORTHEAST
WINDS WILL RESULT IN DANGEROUS WIND CHILL VALUES TONIGHT...AND
LIKELY THROUGH TUESDAY NIGHT AS WELL.

WYZ101-103>106-109>114-292315-
/O.CON.KCYS.WC.W.0006.141230T0100Z-141230T1900Z/
/O.CON.KCYS.WW.Y.0033.000000T0000Z-141230T0000Z/
CONVERSE COUNTY LOWER ELEVATIONS-NORTH LARAMIE RANGE-
FERRIS/SEMINOE/SHIRLEY MOUNTAINS-SHIRLEY BASIN-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS-
SOUTHWEST CARBON COUNTY-SIERRA MADRE RANGE-
UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-
INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...MUDDY GAP...
MEDICINE BOW...BORDEAUX...RAWLINS...SINCLAIR...HANNA...
ARLINGTON...ELK MOUNTAIN...BAGGS...DIXON...SARATOGA...
ENCAMPMENT...RIVERSIDE...CENTENNIAL...ALBANY...WOODS LANDING
806 AM MST MON DEC 29 2014

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
NOON MST TUESDAY...

* SNOWFALL...PERIODS OF SNOW WILL CONTINUE THIS MORNING WITH AN
  ADDITIONAL 1 TO 2 INCHES EXPECTED.

* WIND CHILL VALUES...WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO 
  THIS AFTERNOON WILL QUICKLY LOWER BETWEEN 25 BELOW TO 40 BELOW 
  ZERO TONIGHT. 

* IMPACTS...PRIMARILY TRAVEL DIFFICULTIES WITH SLICK ROADWAYS. 
  BITTER COLD TEMPERATURES AND GUSTY WINDS WILL RESULT IN WIND 
  CHILL VALUES FALLING BELOW 30 BELOW ZERO TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

WYZ115-116-292315-
/O.CON.KCYS.WC.W.0006.141230T0100Z-141230T1900Z/
LARAMIE VALLEY-SOUTH LARAMIE RANGE-
INCLUDING THE CITIES OF...LARAMIE...VEDAUWOO...BUFORD...
PUMPKIN VINE
806 AM MST MON DEC 29 2014

...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
NOON MST TUESDAY...

* WIND CHILL VALUES...30 BELOW TO 40 BELOW ZERO. LOCATIONS IN 
  THE LARAMIE VALLEY MAY SEE WIND CHILLS AS LOW AS 50 BELOW ZERO 
  LATE TONIGHT WITH EAST WINDS BETWEEN 10 TO 15 MPH. 

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 
  5 TO 10 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER 
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN 
  LAYERS IF THEY MUST VENTURE OUTDOORS TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

NEZ019-095-096-WYZ107-108-292315-
/O.EXA.KCYS.WW.Y.0033.000000T0000Z-141230T0000Z/
/O.CON.KCYS.WC.Y.0013.141230T0100Z-141230T1900Z/
SCOTTS BLUFF-NORTH SIOUX-SOUTH SIOUX-EAST PLATTE COUNTY-
GOSHEN COUNTY-
INCLUDING THE CITIES OF...SCOTTSBLUFF...GERING...HARRISON...
AGATE...GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...TORRINGTON
806 AM MST MON DEC 29 2014

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON MST TUESDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 5 PM MST
THIS AFTERNOON.

* SNOWFALL...PERIODS OF SNOW WILL CONTINUE THIS MORNING WITH AN
  ADDITIONAL 1 TO 2 INCHES EXPECTED.

* WIND CHILL VALUES...RANGING FROM 20 BELOW TO 30 BELOW ZERO 
  TONIGHT. NORTHEAST WINDS MAY GUST OVER 20 MPH TONIGHT... 
  RESULTING IN WIND CHILLS DROPPING TO 35 BELOW AT TIMES. 

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 
  20 TO 30 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER 
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN 
  LAYERS IF THEY MUST VENTURE OUTDOORS TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN
THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE
AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

WYZ102-292315-
/O.CON.KCYS.WW.Y.0033.000000T0000Z-141230T0000Z/
/O.CON.KCYS.WC.Y.0013.141230T0100Z-141230T1900Z/
NIOBRARA COUNTY-
INCLUDING THE CITY OF...LUSK
806 AM MST MON DEC 29 2014

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON MST TUESDAY...

* SNOWFALL...PERIODS OF SNOW WILL CONTINUE THIS MORNING WITH 
  ADDITIONAL SNOW ACCUMULATIONS AROUND ONE INCH. 

* WIND CHILL VALUES...WIND CHILLS BETWEEN 5 BELOW TO 15 BELOW 
  ZERO THIS AFTERNOON WILL LOWER BETWEEN 20 BELOW TO 25 BELOW 
  ZERO TONIGHT. 

* IMPACTS...PRIMARILY TRAVEL DIFFICULTIES WITH SLICK ROADWAYS. 
  BITTER COLD TEMPERATURES AND GUSTY WINDS WILL RESULT IN WIND 
  CHILL VALUES FALLING BELOW 20 BELOW ZERO TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN
THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE
AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

NEZ002-003-020-021-054-055-WYZ117>119-292315-
/O.CON.KCYS.WC.Y.0013.141230T0100Z-141230T1900Z/
DAWES-BOX BUTTE-BANNER-MORRILL-KIMBALL-CHEYENNE-
SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY-
EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...HARRISBURG...
BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...HORSE CREEK...HARRIMAN...
WHITAKER...CHEYENNE...BURNS...CARPENTER...ALBIN...PINE BLUFFS
806 AM MST MON DEC 29 2014

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON MST TUESDAY...

* WIND CHILL VALUES...RANGING FROM 20 BELOW TO 30 BELOW ZERO 
  TONIGHT. NORTHEAST WINDS MAY GUST OVER 20 MPH TONIGHT... 
  RESULTING IN WIND CHILLS DROPPING TO 35 BELOW AT TIMES. 

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 
  20 TO 30 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER 
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN 
  LAYERS IF THEY MUST VENTURE OUTDOORS TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN
THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE
AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$
762 
WWUS45 KCYS 291752
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1052 AM MST MON DEC 29 2014

...AN ARCTIC COLD FRONT WILL BRING BITTER COLD WIND CHILLS AND
MORE SNOW TO THE REGION THROUGH TUESDAY...

.AN ARCTIC AIR MASS WILL CONTINUE TO BUILD INTO THE AREA TODAY.
PERIODS OF SNOW WILL CONTINUE TODAY WITH ADDITIONAL LIGHT SNOW
ACCUMULATIONS EXPECTED. FRIGID TEMPERATURES WILL MOVE INTO THE
AREA BY TONIGHT AS AIR TEMPERATURES DROP BELOW ZERO. BREEZY EAST
TO NORTHEAST WINDS WILL RESULT IN DANGEROUS WIND CHILL VALUES
TONIGHT...AND LIKELY THROUGH TUESDAY NIGHT AS WELL.

WYZ101-103>106-109>114-300200-
/O.CON.KCYS.WC.W.0006.141230T0100Z-141230T1900Z/
/O.CON.KCYS.WW.Y.0033.000000T0000Z-141230T0000Z/
CONVERSE COUNTY LOWER ELEVATIONS-NORTH LARAMIE RANGE-
FERRIS/SEMINOE/SHIRLEY MOUNTAINS-SHIRLEY BASIN-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS-
SOUTHWEST CARBON COUNTY-SIERRA MADRE RANGE-
UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-
INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...MUDDY GAP...
MEDICINE BOW...BORDEAUX...RAWLINS...SINCLAIR...HANNA...
ARLINGTON...ELK MOUNTAIN...BAGGS...DIXON...SARATOGA...
ENCAMPMENT...RIVERSIDE...CENTENNIAL...ALBANY...WOODS LANDING
1052 AM MST MON DEC 29 2014

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
NOON MST TUESDAY...

* SNOWFALL...PERIODS OF SNOW WILL CONTINUE THIS MORNING WITH AN 
  ADDITIONAL 1 TO 2 INCHES EXPECTED. 

* WIND CHILL VALUES...WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO 
  THIS AFTERNOON WILL QUICKLY LOWER BETWEEN 25 BELOW TO 40 BELOW 
  ZERO TONIGHT. 

* IMPACTS...PRIMARILY TRAVEL DIFFICULTIES WITH SLICK ROADWAYS. 
  BITTER COLD TEMPERATURES AND GUSTY WINDS WILL RESULT IN WIND 
  CHILL VALUES FALLING BELOW 30 BELOW ZERO TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

WYZ115-116-300200-
/O.CON.KCYS.WC.W.0006.141230T0100Z-141230T1900Z/
LARAMIE VALLEY-SOUTH LARAMIE RANGE-
INCLUDING THE CITIES OF...LARAMIE...VEDAUWOO...BUFORD...
PUMPKIN VINE
1052 AM MST MON DEC 29 2014

...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
NOON MST TUESDAY...

* WIND CHILL VALUES...30 BELOW TO 40 BELOW ZERO. LOCATIONS IN 
  THE LARAMIE VALLEY MAY SEE WIND CHILLS AS LOW AS 50 BELOW ZERO 
  LATE TONIGHT WITH EAST WINDS BETWEEN 10 TO 15 MPH. 

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 
  5 TO 10 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER 
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN 
  LAYERS IF THEY MUST VENTURE OUTDOORS TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

NEZ002-003-300200-
/O.EXA.KCYS.WW.Y.0033.000000T0000Z-141230T0000Z/
/O.CON.KCYS.WC.Y.0013.141230T0100Z-141230T1900Z/
DAWES-BOX BUTTE-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE
1052 AM MST MON DEC 29 2014

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON MST TUESDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 5 PM MST
THIS AFTERNOON.

* SNOWFALL...PERIODS OF SNOW WILL CONTINUE TODAY WITH AN
  ADDITIONAL 1 TO 2 INCHES EXPECTED.

* WIND CHILL VALUES...RANGING FROM 20 BELOW TO 30 BELOW ZERO 
  TONIGHT. NORTHEAST WINDS MAY GUST OVER 20 MPH TONIGHT... 
  RESULTING IN WIND CHILLS DROPPING TO 35 BELOW AT TIMES. 

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 
  20 TO 30 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER 
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN 
  LAYERS IF THEY MUST VENTURE OUTDOORS TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN
THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE
AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

NEZ019-095-096-WYZ102-107-108-300200-
/O.CON.KCYS.WW.Y.0033.000000T0000Z-141230T0000Z/
/O.CON.KCYS.WC.Y.0013.141230T0100Z-141230T1900Z/
SCOTTS BLUFF-NORTH SIOUX-SOUTH SIOUX-NIOBRARA COUNTY-
EAST PLATTE COUNTY-GOSHEN COUNTY-
INCLUDING THE CITIES OF...SCOTTSBLUFF...GERING...HARRISON...
AGATE...LUSK...GLENDO...WHEATLAND...CHUGWATER...GUERNSEY...
TORRINGTON
1052 AM MST MON DEC 29 2014

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON MST TUESDAY...

* SNOWFALL...PERIODS OF SNOW WILL CONTINUE THIS MORNING WITH AN 
  ADDITIONAL 1 TO 2 INCHES EXPECTED. 

* WIND CHILL VALUES...RANGING FROM 20 BELOW TO 30 BELOW ZERO 
  TONIGHT. NORTHEAST WINDS MAY GUST OVER 20 MPH TONIGHT... 
  RESULTING IN WIND CHILLS DROPPING TO 35 BELOW AT TIMES. 

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 
  20 TO 30 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER 
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN 
  LAYERS IF THEY MUST VENTURE OUTDOORS TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN
THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE
AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

NEZ020-021-054-055-WYZ117>119-300200-
/O.CON.KCYS.WC.Y.0013.141230T0100Z-141230T1900Z/
BANNER-MORRILL-KIMBALL-CHEYENNE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...HARRISBURG...BRIDGEPORT...BAYARD...
KIMBALL...SIDNEY...HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE...
BURNS...CARPENTER...ALBIN...PINE BLUFFS
1052 AM MST MON DEC 29 2014

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON MST TUESDAY...

* WIND CHILL VALUES...RANGING FROM 20 BELOW TO 30 BELOW ZERO 
  TONIGHT. NORTHEAST WINDS MAY GUST OVER 20 MPH TONIGHT... 
  RESULTING IN WIND CHILLS DROPPING TO 35 BELOW AT TIMES. 

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 
  20 TO 30 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER 
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN 
  LAYERS IF THEY MUST VENTURE OUTDOORS TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN
THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE
AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$
390 
WWUS45 KCYS 292137
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
237 PM MST MON DEC 29 2014

...AN ARCTIC COLD FRONT WILL BRING BITTER COLD WIND CHILLS TONIGHT
AND SOME LIGHT SNOW THIS AFTERNOON...

.AN ARCTIC AIR MASS WILL CONTINUE TO BUILD INTO THE AREA TODAY.
PERIODS OF SNOW WILL CONTINUE TODAY ACROSS PLATTE...GOSHEN AND
SCOTTSBLUFF COUNTIES. FRIGID TEMPERATURES WILL MOVE INTO THE AREA
BY TONIGHT AS AIR TEMPERATURES DROP BELOW ZERO. BREEZY EAST TO
NORTHEAST WINDS WILL RESULT IN DANGEROUS WIND CHILL VALUES
TONIGHT...AND LIKELY THROUGH TUESDAY NIGHT AS WELL.

WYZ101-103>105-109>114-300545-
/O.CAN.KCYS.WW.Y.0033.000000T0000Z-141230T0000Z/
/O.CON.KCYS.WC.W.0006.141230T0100Z-141230T1900Z/
CONVERSE COUNTY LOWER ELEVATIONS-NORTH LARAMIE RANGE-
FERRIS/SEMINOE/SHIRLEY MOUNTAINS-SHIRLEY BASIN-
CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS-
SOUTHWEST CARBON COUNTY-SIERRA MADRE RANGE-
UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-
INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...MUDDY GAP...
MEDICINE BOW...RAWLINS...SINCLAIR...HANNA...ARLINGTON...
ELK MOUNTAIN...BAGGS...DIXON...SARATOGA...ENCAMPMENT...
RIVERSIDE...CENTENNIAL...ALBANY...WOODS LANDING
237 PM MST MON DEC 29 2014

...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
NOON MST TUESDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

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

* WIND CHILL VALUES...WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO 
  THIS AFTERNOON WILL QUICKLY LOWER BETWEEN 25 BELOW TO 40 BELOW 
  ZERO TONIGHT. 

* IMPACTS...BITTER COLD TEMPERATURES AND GUSTY WINDS WILL RESULT
  IN WIND CHILL VALUES FALLING BELOW 30 BELOW ZERO TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

NEZ002-003-095-WYZ102-300545-
/O.CAN.KCYS.WW.Y.0033.000000T0000Z-141230T0000Z/
/O.CON.KCYS.WC.Y.0013.141230T0100Z-141230T1900Z/
DAWES-BOX BUTTE-NORTH SIOUX-NIOBRARA COUNTY-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...HARRISON...LUSK
237 PM MST MON DEC 29 2014

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON MST TUESDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

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

* WIND CHILL VALUES...RANGING FROM 20 BELOW TO 30 BELOW ZERO 
  TONIGHT. NORTHEAST WINDS MAY GUST OVER 20 MPH TONIGHT... 
  RESULTING IN WIND CHILLS DROPPING TO 35 BELOW AT TIMES. 

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 20
  TO 30 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN LAYERS
  IF THEY MUST VENTURE OUTDOORS TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN
THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE
AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

WYZ106-300545-
/O.CON.KCYS.WC.W.0006.141230T0100Z-141230T1900Z/
/O.CON.KCYS.WW.Y.0033.000000T0000Z-141230T0000Z/
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
INCLUDING THE CITY OF...BORDEAUX
237 PM MST MON DEC 29 2014

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
NOON MST TUESDAY...

* SNOWFALL...PERIODS OF SNOW WILL CONTINUE THIS AFTERNOON WITH UP
  TO AN ADDITIONAL INCH POSSIBLE.

* WIND CHILL VALUES...WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO 
  THIS AFTERNOON WILL QUICKLY LOWER BETWEEN 25 BELOW TO 40 BELOW 
  ZERO TONIGHT. 

* IMPACTS...PRIMARILY TRAVEL DIFFICULTIES WITH SLICK ROADWAYS. 
  BITTER COLD TEMPERATURES AND GUSTY WINDS WILL RESULT IN WIND 
  CHILL VALUES FALLING BELOW 30 BELOW ZERO TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

WYZ115-116-300545-
/O.CON.KCYS.WC.W.0006.141230T0100Z-141230T1900Z/
LARAMIE VALLEY-SOUTH LARAMIE RANGE-
INCLUDING THE CITIES OF...LARAMIE...VEDAUWOO...BUFORD...
PUMPKIN VINE
237 PM MST MON DEC 29 2014

...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
NOON MST TUESDAY...

* WIND CHILL VALUES...30 BELOW TO 40 BELOW ZERO. LOCATIONS IN 
  THE LARAMIE VALLEY MAY SEE WIND CHILLS AS LOW AS 50 BELOW ZERO 
  LATE TONIGHT WITH EAST WINDS BETWEEN 10 TO 15 MPH. 

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 
  5 TO 10 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER 
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN 
  LAYERS IF THEY MUST VENTURE OUTDOORS TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

NEZ019-096-WYZ107-108-300545-
/O.CON.KCYS.WW.Y.0033.000000T0000Z-141230T0000Z/
/O.CON.KCYS.WC.Y.0013.141230T0100Z-141230T1900Z/
SCOTTS BLUFF-SOUTH SIOUX-EAST PLATTE COUNTY-GOSHEN COUNTY-
INCLUDING THE CITIES OF...SCOTTSBLUFF...GERING...AGATE...GLENDO...
WHEATLAND...CHUGWATER...GUERNSEY...TORRINGTON
237 PM MST MON DEC 29 2014

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON MST TUESDAY...

* SNOWFALL...PERIODS OF SNOW WILL CONTINUE THIS AFTERNOON WITH AN
  ADDITIONAL INCH OR TWO POSSIBLE. GENERALLY EXPECT A TOTAL OF 3
  TO 6 INCHES WITH LOCALLY HIGHER AMOUNTS AROUND SCOTTSBLUFF.

* WIND CHILL VALUES...RANGING FROM 20 BELOW TO 30 BELOW ZERO 
  TONIGHT. NORTHEAST WINDS MAY GUST OVER 20 MPH TONIGHT... 
  RESULTING IN WIND CHILLS DROPPING TO 35 BELOW AT TIMES. 

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 
  20 TO 30 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER 
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN 
  LAYERS IF THEY MUST VENTURE OUTDOORS TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN
THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE
AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

NEZ020-021-054-055-WYZ117>119-300545-
/O.CON.KCYS.WC.Y.0013.141230T0100Z-141230T1900Z/
BANNER-MORRILL-KIMBALL-CHEYENNE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...HARRISBURG...BRIDGEPORT...BAYARD...
KIMBALL...SIDNEY...HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE...
BURNS...CARPENTER...ALBIN...PINE BLUFFS
237 PM MST MON DEC 29 2014

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON MST TUESDAY...

* WIND CHILL VALUES...RANGING FROM 20 BELOW TO 30 BELOW ZERO 
  TONIGHT. NORTHEAST WINDS MAY GUST OVER 20 MPH TONIGHT... 
  RESULTING IN WIND CHILLS DROPPING TO 35 BELOW AT TIMES. 

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 
  20 TO 30 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER 
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN 
  LAYERS IF THEY MUST VENTURE OUTDOORS TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN
THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE
AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$
156 
WWUS45 KCYS 292359
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
459 PM MST MON DEC 29 2014

...AN ARCTIC COLD FRONT WILL BRING BITTER COLD WIND CHILLS
TONIGHT...

.AN ARCTIC AIR MASS WILL CONTINUE TO BUILD INTO THE AREA TONIGHT
WITH AIR TEMPERATURES DROPPING BELOW ZERO. BREEZY EAST TO
NORTHEAST WINDS WILL RESULT IN DANGEROUS WIND CHILL VALUES
TONIGHT...AND LIKELY THROUGH TUESDAY NIGHT AS WELL.

WYZ106-301900-
/O.EXP.KCYS.WW.Y.0033.000000T0000Z-141230T0000Z/
/O.CON.KCYS.WC.W.0006.141230T0100Z-141230T1900Z/
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
INCLUDING THE CITY OF...BORDEAUX
459 PM MST MON DEC 29 2014

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON MST TUESDAY...
...WINTER WEATHER ADVISORY FOR SNOW WILL EXPIRE AT 5 PM MST THIS
AFTERNOON...

* WIND CHILL VALUES...WIND CHILLS OF 25 BELOW TO 40 BELOW ZERO ARE
  EXPECTED TONIGHT.

* IMPACTS...PRIMARILY TRAVEL DIFFICULTIES WITH SLICK ROADWAYS. 
  BITTER COLD TEMPERATURES AND GUSTY WINDS WILL RESULT IN WIND 
  CHILL VALUES FALLING BELOW 30 BELOW ZERO TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

NEZ019-096-WYZ107-108-301900-
/O.EXP.KCYS.WW.Y.0033.000000T0000Z-141230T0000Z/
/O.CON.KCYS.WC.Y.0013.141230T0100Z-141230T1900Z/
SCOTTS BLUFF-SOUTH SIOUX-EAST PLATTE COUNTY-GOSHEN COUNTY-
INCLUDING THE CITIES OF...SCOTTSBLUFF...GERING...AGATE...GLENDO...
WHEATLAND...CHUGWATER...GUERNSEY...TORRINGTON
459 PM MST MON DEC 29 2014

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON MST TUESDAY...
...WINTER WEATHER ADVISORY FOR SNOW WILL EXPIRE AT 5 PM MST THIS
AFTERNOON...

* WIND CHILL VALUES...RANGING FROM 20 BELOW TO 30 BELOW ZERO 
  TONIGHT. NORTHEAST WINDS MAY GUST OVER 20 MPH TONIGHT... 
  RESULTING IN WIND CHILLS DROPPING TO 35 BELOW AT TIMES. 

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 20
  TO 30 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN LAYERS
  IF THEY MUST VENTURE OUTDOORS TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN
THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE
AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

WYZ101-103>105-109>116-301900-
/O.CON.KCYS.WC.W.0006.141230T0100Z-141230T1900Z/
CONVERSE COUNTY LOWER ELEVATIONS-NORTH LARAMIE RANGE-
FERRIS/SEMINOE/SHIRLEY MOUNTAINS-SHIRLEY BASIN-
CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS-
SOUTHWEST CARBON COUNTY-SIERRA MADRE RANGE-
UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-LARAMIE VALLEY-
SOUTH LARAMIE RANGE-
INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...MUDDY GAP...
MEDICINE BOW...RAWLINS...SINCLAIR...HANNA...ARLINGTON...
ELK MOUNTAIN...BAGGS...DIXON...SARATOGA...ENCAMPMENT...
RIVERSIDE...CENTENNIAL...ALBANY...WOODS LANDING...LARAMIE...
VEDAUWOO...BUFORD...PUMPKIN VINE
459 PM MST MON DEC 29 2014

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON MST TUESDAY...

* WIND CHILL VALUES...WIND CHILLS OF 25 BELOW TO 40 BELOW ZERO ARE
  EXPECTED TONIGHT.

* IMPACTS...BITTER COLD TEMPERATURES AND GUSTY WINDS WILL RESULT 
  IN WIND CHILL VALUES FALLING BELOW 30 BELOW ZERO TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

NEZ002-003-020-021-054-055-095-WYZ102-117>119-301900-
/O.CON.KCYS.WC.Y.0013.141230T0100Z-141230T1900Z/
DAWES-BOX BUTTE-BANNER-MORRILL-KIMBALL-CHEYENNE-NORTH SIOUX-
NIOBRARA COUNTY-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...HARRISBURG...
BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...HARRISON...LUSK...
HORSE CREEK...HARRIMAN...WHITAKER...CHEYENNE...BURNS...
CARPENTER...ALBIN...PINE BLUFFS
459 PM MST MON DEC 29 2014

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON MST TUESDAY...

* WIND CHILL VALUES...RANGING FROM 20 BELOW TO 30 BELOW ZERO 
  TONIGHT. NORTHEAST WINDS MAY GUST OVER 20 MPH TONIGHT... 
  RESULTING IN WIND CHILLS DROPPING TO 35 BELOW AT TIMES. 

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 
  20 TO 30 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER 
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN 
  LAYERS IF THEY MUST VENTURE OUTDOORS TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS IN
THE MINUS 20 TO 29 DEGREE RANGE FROSTBITE CAN OCCUR IN AS LITTLE
AS 30 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$
896 
WWUS45 KCYS 300925
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
225 AM MST TUE DEC 30 2014

...AN ARCTIC COLD FRONT WILL BRING BITTER COLD WIND CHILLS EARLY
THIS MORNING THROUGH TONIGHT...

.AN ARCTIC AIRMASS WILL CONTINUE TO BUILD INTO THE AREA WITH AIR
TEMPERATURES DROPPING WELL BELOW ZERO. BREEZY EAST TO NORTHEAST
WINDS WILL RESULT IN DANGEROUS WIND CHILL VALUES.

WYZ101-106-302300-
/O.NEW.KCYS.WC.W.0007.141231T0200Z-141231T1300Z/
/O.CON.KCYS.WC.W.0006.000000T0000Z-141230T1900Z/
CONVERSE COUNTY LOWER ELEVATIONS-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...BORDEAUX
225 AM MST TUE DEC 30 2014

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY...

...WIND CHILL WARNING ALSO IN EFFECT FROM 7 PM THIS EVENING TO 6
AM MST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO 6 AM MST
WEDNESDAY. 

* WIND CHILL VALUES...WIND CHILL VALUES WILL INCREASE TO NEAR 10
  BELOW ZERO THIS AFTERNOON. HOWEVER...WIND CHILLS OF 25 BELOW TO
  40 BELOW ZERO ARE EXPECTED TONIGHT AS AIR TEMPERATURES LOWER
  THIS EVENING.

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 5
  TO 10 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN LAYERS
  IF THEY MUST VENTURE OUTDOORS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

NEZ002-003-019>021-054-055-095-096-WYZ102-302300-
/O.NEW.KCYS.WC.W.0007.141231T0200Z-141231T1700Z/
/O.CON.KCYS.WC.Y.0013.000000T0000Z-141230T1900Z/
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-NIOBRARA COUNTY-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF...
GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...
HARRISON...AGATE...LUSK
225 AM MST TUE DEC 30 2014

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY...

...WIND CHILL WARNING IN EFFECT FROM 7 PM THIS EVENING TO 10 AM
MST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO 10 AM MST
WEDNESDAY. 

* WIND CHILL VALUES...RANGING FROM 15 BELOW TO 30 BELOW ZERO THIS
  MORNING. WIND CHILLS ARE EXPECTED TO DROP BETWEEN 35 BELOW TO 45
  BELOW ZERO TONIGHT AS WINDS SHIFT INTO THE WEST AND INCREASE TO
  AROUND 10 MPH.

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 5
  TO 10 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN LAYERS
  IF THEY MUST VENTURE OUTDOORS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

WYZ107-108-117>119-302300-
/O.NEW.KCYS.WC.W.0007.141231T0200Z-141231T1300Z/
/O.CON.KCYS.WC.Y.0013.000000T0000Z-141230T1900Z/
EAST PLATTE COUNTY-GOSHEN COUNTY-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...GLENDO...WHEATLAND...CHUGWATER...
GUERNSEY...TORRINGTON...HORSE CREEK...HARRIMAN...WHITAKER...
CHEYENNE...BURNS...CARPENTER...ALBIN...PINE BLUFFS
225 AM MST TUE DEC 30 2014

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY...

...WIND CHILL WARNING IN EFFECT FROM 7 PM THIS EVENING TO 6 AM
MST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO 6 AM MST
WEDNESDAY. 

* WIND CHILL VALUES...RANGING FROM 15 BELOW TO 30 BELOW ZERO THIS
  MORNING. WIND CHILLS ARE EXPECTED TO DROP BETWEEN 25 BELOW TO 40
  BELOW ZERO TONIGHT AS WINDS SHIFT INTO THE WEST AND INCREASE TO 10
  TO 15 MPH.

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 5
  TO 10 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN LAYERS
  IF THEY MUST VENTURE OUTDOORS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

WYZ103>105-109>116-302300-
/O.EXT.KCYS.WC.W.0006.000000T0000Z-141231T1700Z/
NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
SHIRLEY BASIN-CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS-
SOUTHWEST CARBON COUNTY-SIERRA MADRE RANGE-
UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-LARAMIE VALLEY-
SOUTH LARAMIE RANGE-
INCLUDING THE CITIES OF...MUDDY GAP...MEDICINE BOW...RAWLINS...
SINCLAIR...HANNA...ARLINGTON...ELK MOUNTAIN...BAGGS...DIXON...
SARATOGA...ENCAMPMENT...RIVERSIDE...CENTENNIAL...ALBANY...
WOODS LANDING...LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE
225 AM MST TUE DEC 30 2014

...WIND CHILL WARNING NOW IN EFFECT UNTIL 10 AM MST WEDNESDAY...

* WIND CHILL VALUES...WIND CHILLS OF 20 BELOW TO 35 BELOW ZERO
  ARE EXPECTED TODAY. FOR TONIGHT...WIND CHILLS WILL LOWER BETWEEN
  30 BELOW TO 40 BELOW ZERO WITH A FEW LOCATIONS IN THE LARAMIE
  VALLEY NEAR 50 BELOW ZERO BY EARLY WEDNESDAY MORNING.

* IMPACTS...DANGEROUS WIND CHILLS TODAY AND TONIGHT. FROSTBITE CAN
  OCCUR ON EXPOSED SKIN IN AS LITTLE AS 5 MINUTES. HYPOTHERMIA
  MAY OCCUR AS WELL WITHOUT PROPER INSULATION. TRAVELERS AND
  RESIDENTS ARE URGED TO DRESS IN LAYERS IF THEY MUST VENTURE
  OUTDOORS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

TT
268 
WWUS45 KCYS 301853
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1153 AM MST TUE DEC 30 2014

...AN ARCTIC COLD FRONT WILL BRING BITTERLY COLD WIND CHILLS TODAY
AND TONIGHT...

.AN ARCTIC AIRMASS WILL CONTINUE TO BUILD INTO THE AREA WITH AIR
TEMPERATURES REMAINING BELOW ZERO MOST OF THE DAY. BREEZY EAST TO
NORTHEAST WINDS WILL RESULT IN DANGEROUS WIND CHILL VALUES.

WYZ101-106-310600-
/O.EXP.KCYS.WC.W.0006.000000T0000Z-141230T1900Z/
/O.CON.KCYS.WC.W.0007.141231T0200Z-141231T1300Z/
CONVERSE COUNTY LOWER ELEVATIONS-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
INCLUDING THE CITIES OF...DOUGLAS...GLENROCK...BORDEAUX
1153 AM MST TUE DEC 30 2014

...WIND CHILL WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO
6 AM MST WEDNESDAY...
...WIND CHILL WARNING WILL EXPIRE AT NOON MST TODAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO 6 AM MST
WEDNESDAY.

* TIMING...TONIGHT.

* WIND CHILL VALUES...25 BELOW TO 40 BELOW ZERO.

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 
  5 TO 10 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER 
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN 
  LAYERS IF THEY MUST VENTURE OUTDOORS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMETIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

NEZ002-003-019>021-054-055-095-096-WYZ102-310600-
/O.EXP.KCYS.WC.Y.0013.000000T0000Z-141230T1900Z/
/O.CON.KCYS.WC.W.0007.141231T0200Z-141231T1700Z/
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-NIOBRARA COUNTY-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF...
GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...
HARRISON...AGATE...LUSK
1153 AM MST TUE DEC 30 2014

...WIND CHILL WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO
10 AM MST WEDNESDAY...
...WIND CHILL ADVISORY WILL EXPIRE AT NOON MST TODAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO 10 AM MST
WEDNESDAY.

* TIMING...TONIGHT.

* WIND CHILL VALUES...30 BELOW TO 45 BELOW ZERO.

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 
  5 TO 10 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER 
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN 
  LAYERS IF THEY MUST VENTURE OUTDOORS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMETIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

WYZ107-108-117>119-310600-
/O.EXP.KCYS.WC.Y.0013.000000T0000Z-141230T1900Z/
/O.CON.KCYS.WC.W.0007.141231T0200Z-141231T1300Z/
EAST PLATTE COUNTY-GOSHEN COUNTY-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...GLENDO...WHEATLAND...CHUGWATER...
GUERNSEY...TORRINGTON...HORSE CREEK...HARRIMAN...WHITAKER...
CHEYENNE...BURNS...CARPENTER...ALBIN...PINE BLUFFS
1153 AM MST TUE DEC 30 2014

...WIND CHILL WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO
6 AM MST WEDNESDAY...
...WIND CHILL ADVISORY WILL EXPIRE AT NOON MST TODAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO 6 AM MST
WEDNESDAY.

* TIMING...TONIGHT.

* WIND CHILL VALUES...25 BELOW TO 40 BELOW ZERO.

* IMPACTS...FROSTBITE CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 
  5 TO 10 MINUTES. HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER 
  INSULATION. TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN 
  LAYERS IF THEY MUST VENTURE OUTDOORS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMETIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

WYZ103>105-109>116-310600-
/O.CON.KCYS.WC.W.0006.000000T0000Z-141231T1700Z/
NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
SHIRLEY BASIN-CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS-
SOUTHWEST CARBON COUNTY-SIERRA MADRE RANGE-
UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-LARAMIE VALLEY-
SOUTH LARAMIE RANGE-
INCLUDING THE CITIES OF...MUDDY GAP...MEDICINE BOW...RAWLINS...
SINCLAIR...HANNA...ARLINGTON...ELK MOUNTAIN...BAGGS...DIXON...
SARATOGA...ENCAMPMENT...RIVERSIDE...CENTENNIAL...ALBANY...
WOODS LANDING...LARAMIE...VEDAUWOO...BUFORD...PUMPKIN VINE
1153 AM MST TUE DEC 30 2014

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 10 AM MST
WEDNESDAY...

* TIMING...TODAY AND TONIGHT.

* WIND CHILL VALUES...WIND CHILLS OF 20 BELOW TO 35 BELOW ZERO 
  ARE EXPECTED TODAY. FOR TONIGHT...WIND CHILLS WILL LOWER 
  BETWEEN 30 BELOW TO 40 BELOW ZERO WITH A FEW LOCATIONS IN THE 
  LARAMIE VALLEY NEAR 50 BELOW ZERO BY EARLY WEDNESDAY MORNING. 

* IMPACTS...DANGEROUS WIND CHILLS TODAY AND TONIGHT. FROSTBITE 
  CAN OCCUR ON EXPOSED SKIN IN AS LITTLE AS 5 MINUTES. 
  HYPOTHERMIA MAY OCCUR AS WELL WITHOUT PROPER INSULATION. 
  TRAVELERS AND RESIDENTS ARE URGED TO DRESS IN LAYERS IF THEY 
  MUST VENTURE OUTDOORS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE WIND CHILL IS THE TEMPERATURE YOUR BODY FEELS WHEN THE AIR
TEMPERATURE IS COMBINED WITH THE WIND SPEED. WITH WIND CHILLS
BELOW MINUS 30 DEGREES...FROSTBITE CAN OCCUR IN AS LITTLE AS 5 TO
10 MINUTES. THE MOST SUSCEPTIBLE PARTS OF THE BODY ARE THE
EXTREMITIES SUCH AS FINGERS...TOES...EAR LOBES...OR THE TIP OF
THE NOSE.

&&

$$

HAHN

What forecasters said that day

The local office's own words before this wind chill advisory 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 wind chill advisory went out at Dec 28, 11:49 PM MST, 3 hours 4 minutes earlier.

Area forecast discussion, Dec 28, 11:49 PM MST, 3 hours 4 minutes before
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE CHEYENNE WY
1149 PM MST SUN DEC 28 2014

.UPDATE...
ISSUED AT 902 PM MST SUN DEC 28 2014

FOR THE EVENING UPDATE...WE EXPANDED THE WINTER WEATHER ADVISORY
TO INCLUDE ADDITIONAL AREAS IN CARBON...CONVERSE...AND NIOBRARA
COUNTIES...AND PORTIONS OF ALBANY COUNTY WEST AND NORTH OF
LARAMIE. 3 INCHES OF NEW SNOW ALREADY BEING REPORTED BY SOME OF
OUR SPOTTERS IN CONVERESE COUNTY AND ACROSS PORTIONS OF
NORTHWESTERN CARBON COUNTY. LATEST INDICATIONS ARE SEVERAL OF THE
ADDED LOCATIONS IN THE ADVISORY MAY SEE 4 TO 6 INCHES OF NEW SNOW
BY LATE TOMORROW. WITH MANY MORE HOURS OF LIGHT SNOW
EXPECTED INTO TOMORROW...TRAVEL IMPACTS ARE EXPECTED FOR AREAS
WEST OF LARAMIE AND ACROSS SOME OF OUR NORTHERN ZONES IN WYOMING.
WYDOT IS NOW ADVISING NO UNNECESSARY TRAVEL ALONG INTERSTATE 80
WEST OF LARAMIE (STARTING AT WALCOTT JUNCTION) TO RAWLINS DUE TO
SIGNIFICANT VISIBILITY REDUCTIONS AND SOME DRIFTING OF SNOW ONTO
THE ROAD. NO OTHER SIGNIFICANT CHANGES AT THIS TIME. THE MIDNIGHT
SHIFT MAY HAVE TO MAKE FURTHER ADJUSTMENTS...SO STAY TUNED FOR
MORE UPDATES.

&&

.SHORT TERM...(THIS EVENING THROUGH MONDAY NIGHT)
ISSUED AT 236 PM MST SUN DEC 28 2014

TONIGHT...PRIMARY CHALLENGES WILL BE TIMING OF ARCTIC AIR AND AREAL
COVERAGE OF SNOW. ARCTIC COLD FRONT WILL SLOWLY SLIDE SOUTH ACROSS
OUR COUNTIES...USHERING IN THE BITTERLY COLD AIRMASS NOW OVER THE
NORTHERN DAKOTAS...WITH WIDESPREAD LIGHT SNOW DEVELOPING SOME 1 TO 3
HOURS AFTER COLD FRONTAL PASSAGE. INHERITED WINTER WEATHER
ADVISORIES FROM THE MIDNIGHT SHIFT TEAM ARE ON TRACK FOR THE
NORTHERN LARAMIE...SNOWY AND SIERRA MADRE RANGES. FOR THE EASTERN
PLAINS...WILL HAVE POPS NEARING 90 TO 100 PERCENT WITH SATURATED
AIRMASS LIFTED BY UPSLOPE AND DYNAMICS.

MONDAY...STRENGTH OF COLD AIR ADVECTION SUGGESTS THAT TEMPERATURES
WILL BE SLOWLY FALLING DURING THE DAYLIGHT HOURS. WITH THE NAM...GFS
AND ECMWF SHOWING THE BULK OF THE DYNAMICAL LIFT ASSOCIATED WITH THE
SHORTWAVE TROUGH OVER COLORADO...AND ALSO NEAR THE JET
ALOFT...EXPECT WE WILL SEE WIDESPREAD LIGHT POWDERY SNOW...WITH A 30
OR 40 TO 1 SNOW TO LIQUID RATIO...AND THEREFORE ONLY LIGHT SNOWFALL
ACCUMULATIONS. SINCE THE PRIMARY FOCUS OF THIS WINTER WEATHER EVENT
WILL BE MUCH COLDER TEMPERATURES AND WIND CHILLS BEHIND THE ARCTIC
COLD FRONT...WE HAVE OPTED TO ISSUE A SPECIAL WEATHER STATEMENT FOR
OUR CUSTOMERS...AND TO MAINTAIN THE INHERITED MOUNTAIN WINTER
WEATHER ADVISORY WHICH IS ON TRACK.

MONDAY NIGHT...WEAK UPWARD VERTICAL MOTION WILL CONTINUE ALONG WITH
UPSLOPE OF THE SATURATED LOW AND MID LEVELS...KEEPING LIGHT SNOW
FAIRLY WIDESPREAD IN THE EVENING...WITH LESS COVERAGE AFTER
MIDNIGHT. BITTERLY COLD WIND CHILLS FROM 20 BELOW TO 40 BELOW WILL
REQUIRE WIND CHILL ADVISORIES OR WIND CHILL WARNINGS. BY DAWN
TUESDAY...EXPECTING SNOWFALL TOTALS OVER THE NORTHERN
LARAMIE...SNOWY AND SIERRA MADRE RANGES OF 6 TO 12 INCHES...WITH 1
TO 4 INCHES OVER LOWER ELEVATIONS.

.LONG TERM...(MONDAY NIGHT THROUGH SUNDAY)
ISSUED AT 236 PM MST SUN DEC 28 2014

THE AREA WILL BE IN THE MIDST OF AN ARCTIC OUTBREAK TO BEGIN THE
PERIOD...FOLLOWED BY TEMPERATURES GRADUALLY MODERATING BACK INTO THE
UPPER 20S FOR THE END OF THE WEEK AND NEXT WEEKEND. H3 155 KNOT
ZONAL JET STREAK WILL DRIFT BACK NORTH TOWARDS THE CWA...LIKELY
PROLONGING THE VERY LIGHT SNOW/FLURRIES ACROSS THE AREA AT LEAST
INTO THE MORNING HOURS. TEMPERATURES ARE GOING TO BE THE BIGGER
STORY...AND WITH A 1050MB HIGH PRESSURE SETTLING ACROSS THE AREA ON
TUESDAY AND THE EXISTING SNOW PACK...EXPECT MOST AREAS TO REMAIN
BELOW 0F. LARAMIE WILL LIKELY BE THE COLD SPOT ON TUESDAY...WHERE
HIGH TEMPERATURES MAY NOT SEE ABOVE DOUBLE DIGITS BELOW ZERO.
TUESDAY NIGHT WILL SEE THE COLDEST TEMPERATURES OF THE WEEK...WITH
20 TO 30 DEGREES BELOW ZERO WIDELY EXPECTED. WILL LIKELY NEED A WIND
CHILL HIGHLIGHT IN TIME FOR THIS PERIOD AND INTO WEDNESDAY NIGHT AS -
30 TO -40F LOOKS TO BE A GOOD BET.

THE GOOD NEWS OF THE WEEK IS THAT THE ARCTIC BLAST WILL BE SHORT
LIVED AND EVEN BY WEDNESDAY SHOULD BE SEEING AT LEAST SOME PROGRESS
WITH HIGH TEMPERATURES WARMING INTO THE SINGLE DIGITS WEST OF THE
LARAMIE RANGE AND TEENS OUT ON THE ERN PLAINS. OTHERWISE...EXPECT
DRY CONDITIONS TO PERSIST THRU THE END OF THE WEEK AS DRY SPLIT FLOW
KEEPS DISTURBANCES AT BAY.

MODEL SOLUTIONS ARE A LITTLE DIFFERENT FOR THE WEEKEND...WITH THE
GFS TRYING TO DRAG ANOTHER COLD FRONT SOUTH...WHILE THE ECMWF KEEPS
FLOW RATHER DRY SOUTHWESTERLY. CONFIDENCE IS NOT ALL THAT HIGH WITH
WHICH SCENARIO WILL BE THE VICTOR...BUT FOR NOW HAVE GENERALLY
FOLLOWED CONSENSUS STEERING IT TOWARDS THE WETTER/COOLER GFS.

&&

.AVIATION...(FOR THE 06Z TAFS THROUGH 06Z MONDAY NIGHT)
ISSUED AT 1146 PM MST SUN DEC 28 2014

ARCTIC COLD FRONT MOVING SOUTHWARD ACROSS SOUTHEAST WYOMING AND
WESTERN NEBRASKA LATE THIS EVENING AND SHOULD BE SOUTH INTO
COLORADO BY MORNING. ALONG AND BEHIND THE FRONT LIGHT TO MODERATE
SNOW IS BEING OBSERVED. IFR/LIFR CEILINGS AND VISIBILITIES WILL
GRADUALLY BECOME MORE WIDESPREAD AT ALL AVIATION FORECAST SITES
THROUGH MID MORNING AND WILL CONTINUE THROUGH LATE MONDAY AS THE
UPPER SHORTWAVE MOVES THROUGH.

&&

.FIRE WEATHER...
ISSUED AT 236 PM MST SUN DEC 28 2014

NO CONCERNS DUE TO PROJECTED TEMPERATURES...WINDS AND HUMIDITIES.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...WINTER WEATHER ADVISORY UNTIL 5 PM MST MONDAY FOR WYZ101>105-
     109>114.

NE...NONE.
&&

UPDATE...JG
SHORT TERM...RUBIN
LONG TERM...CAH
AVIATION...JG
FIRE WEATHER...RUBIN
Hazardous weather outlook, Dec 28, 11:15 AM MST, 15 hours 38 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
1115 AM MST SUN DEC 28 2014

WYZ101>105-107>109-111>115-118-119-291300-
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-SIERRA MADRE RANGE-
UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-LARAMIE VALLEY-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
1115 AM MST SUN DEC 28 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL
WYOMING...SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING.

.DAY ONE...TODAY AND TONIGHT

A STRONG ARCTIC COLD FRONT WILL MOVE SOUTHWARD ACROSS THE AREA
TONIGHT. BITTERLY COLD TEMPERATURES...DANGEROUS WIND CHILLS...AND
ANOTHER ROUND OF SNOW ARE POSSIBLE TONIGHT. A WINTER WEATHER
ADVISORY IS IN EFFECT FOR THE SNOWY RANGE...SIERRA MADRES...AND
NORTHERN LARAMIE RANGE MOUNTAINS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

BITTER SUB-ZERO TEMPERATURES...DANGEROUS WIND CHILLS...AND
CONTINUED SNOW WITH STORM TOTAL ACCUMULATIONS OF 1 TO 3 INCHES IN
LOWER ELEVATIONS AND 6 TO 12 INCHES IN THE MOUNTAINS ARE POSSIBLE
THROUGH EARLY WEDNESDAY. A WINTER WEATHER ADVISORY IS IN EFFECT
FOR THE SNOWY RANGE...SIERRA MADRES...AND NORTHERN LARAMIE RANGE
MOUNTAINS THROUGH 5 PM MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

NEZ002-003-019>021-054-055-095-096-291300-
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-
1115 AM MST SUN DEC 28 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN
NEBRASKA.

.DAY ONE...TODAY AND TONIGHT

A STRONG ARCTIC COLD FRONT WILL MOVE SOUTHWARD ACROSS THE AREA
TONIGHT. BITTERLY COLD TEMPERATURES...DANGEROUS WIND CHILLS...AND
ANOTHER ROUND OF SNOW ARE POSSIBLE TONIGHT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

BITTER SUB-ZERO TEMPERATURES...DANGEROUS WIND CHILLS...AND
CONTINUED SNOW WITH STORM TOTAL ACCUMULATIONS OF 1 TO 3 INCHES
ARE POSSIBLE MONDAY THROUGH EARLY WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

WYZ106-110-116-117-291300-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-
1115 AM MST SUN DEC 28 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL
WYOMING...SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING.

.DAY ONE...TODAY AND TONIGHT

A STRONG ARCTIC COLD FRONT WILL MOVE SOUTHWARD ACROSS THE AREA
TONIGHT. BITTERLY COLD WIND CHILLS BELOW MINUS 10 DEGREES ARE
EXPECTED TONIGHT...ALONG WITH SNOW ACCUMULATIONS OF 1 TO 2 INCHES
IN THE LOWER ELEVATIONS WITH 2 TO 4 INCHES IN THE SOUTHERN LARAMIE
RANGE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

BITTERLY COLD WIND CHILLS WILL CONTINUE THROUGH WEDNESDAY
MORNING...WITH LIGHT SNOW EXPECTED THROUGH EARLY WEDNESDAY AS
WELL. STORM TOTAL ACCUMULATIONS OF 2 TO 4 INCHES IN THE LOWER
ELEVATIONS AND 3 TO 6 INCHES IN THE SOUTHERN LARAMIE RANGE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

RUBIN

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 29, 2:53 AM MSTWind Chill WarningCYSAlbany, Carbon, Converse, Laramie, Platte55 hr

Nearby

Wind Chill Advisories in Nebraska, 2014Wind Chill Advisories in Wyoming, 2014Every wind chill advisory in 2014

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.