Alert archive / Nebraska / Winter Storm Warnings in 2012

Winter Storm Warning 12, NWS Cheyenne, WY

December 19, 2012Cheyenne County, Nebraska

NWS Cheyenne, WY issued this winter storm warning at Dec 19, 2012, 3:44 AM MST for Cheyenne County, Nebraska. It took effect at Dec 19, 2012, 7:00 AM MST. It was in force for 11 hr. 2 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, 3:44 AM MST (10:44 UTC)
In effect from
Dec 19, 2012, 7:00 AM MST
Expired
Dec 19, 2012, 6:00 PM MST
In force
11 hr
Issued by
NWS Cheyenne, WY

County Cheyenne County, NE

The radar

The Cheyenne radar (KCYS), 152 km from the middle of the area, began a volume at 10:45 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 19, 9:45 AM MSTSNOW 1.5Sidney, NE
Dec 19, 1:45 PM MSTSNOW 4Sidney, NE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 10.7 hours before the alert went out and 151 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 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2012-12-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.1939587897117136Sfc1 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
1949 m above ground
0-6 km bulk shear
115 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
191 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.

774 
WWUS45 KCYS 191044
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
344 AM MST WED DEC 19 2012

...SNOW TO TAPER OFF FROM WEST TO EAST ACROSS THE AREA TODAY...

.A PACIFIC STORM SYSTEM WILL MOVE OUT OF THE ROCKIES AND INTO THE
PLAINS TODAY. THIS SYSTEM WILL BRING SNOW...GUSTY WINDS...AND 
COLDER TEMPERATURES TO SOUTHEAST WYOMING AND THE WESTERN NEBRASKA
PANHANDLE. SNOW WILL SPREAD INTO THE NEBRASKA PANHANDLE THIS
MORNING WHILE SNOW WILL START TO TAPER OFF OVER SOUTHEAST WYOMING. 
THE SNOW MAY BE HEAVY AT TIMES. GUSTY WINDS WILL BE FOUND OVER FAR
SOUTHEAST WYOMING AND THE SOUTHERN NEBRASKA PANHANDLE. THESE GUSTY
WINDS WILL PRODUCE WIDESPREAD BLOWING AND DRIFTING SNOW. 

NEZ055-192000-
/O.CAN.KCYS.WS.W.0010.000000T0000Z-121220T0100Z/
/O.NEW.KCYS.WS.W.0012.121219T1400Z-121220T0100Z/
CHEYENNE-
INCLUDING THE CITY OF...SIDNEY
344 AM MST WED DEC 19 2012

...WINTER STORM WARNING IN EFFECT FROM 7 AM THIS MORNING TO 6 PM
MST THIS EVENING...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM
7 AM THIS MORNING TO 6 PM MST THIS EVENING.

* TIMING...SNOW WILL DEVELOP EARLY THIS MORNING AND CONTINUE INTO
  LATE AFTERNOON BEFORE TAPERING OFF BY EARLY EVENING.

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

* WINDS/VISIBILITIES...NORTH WINDS WILL INCREASE TO 20 TO 30 MPH
  THIS AFTERNOON WITH GUSTS AS 40 MPH. THE COMBINATION OF GUSTY
  WINDS AND FALLING SNOW WILL PRODUCE VISIBILITIES LESS THAN ONE
  1/4 MILE AT TIMES IN OPEN AREAS.

* IMPACTS...ROADS WILL BECOME SNOW COVERED AND SLIPPERY AND
  VISIBILITIES WILL BE SIGNIFICANTLY REDUCED. THESE CONDITIONS
  WILL MAKE MAKING TRAVEL VERY DIFFICULT...ESPECIALLY THIS
  AFTERNOON.

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.


&&

$$

NEZ019-021-192000-
/O.CAN.KCYS.WW.Y.0019.000000T0000Z-121220T0100Z/
/O.NEW.KCYS.WW.Y.0020.121219T1400Z-121220T0100Z/
SCOTTS BLUFF-MORRILL-
INCLUDING THE CITIES OF...SCOTTSBLUFF...GERING...BRIDGEPORT...
BAYARD
344 AM MST WED DEC 19 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM THIS MORNING TO
6 PM MST THIS EVENING...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 7 AM THIS MORNING TO 6 PM MST THIS EVENING.

* TIMING...SNOW WILL DEVELOP EARLY THIS MORNING AND END LATE THIS
  AFTERNOON. 

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

* WINDS/VISIBILITIES...NORTH WINDS 10 TO 15 MPH WILL STEADILY
  INCREASE THIS MORNING. BY THIS AFTERNOON WINDS WILL GUST TO 35
  MPH. THE COMBINATION OF GUSTY WINDS AND FALLING SNOW WILL
  PRODUCE VISIBILITIES TO 1/4 MILE OR LESS AT TIMES IN OPEN
  AREAS.

* IMPACTS...ROADS WILL BECOME 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.

&&

$$

NEZ003-096-191145-
/O.CAN.KCYS.WW.Y.0019.000000T0000Z-121220T0100Z/
BOX BUTTE-SOUTH SIOUX-
INCLUDING THE CITIES OF...ALLIANCE...AGATE
344 AM MST WED DEC 19 2012

...WINTER WEATHER ADVISORY IS CANCELLED...

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

LIGHT SNOW CAN STILL BE EXPECTED BUT AMOUNTS WILL RANGE FROM 1 TO
3 INCHES OVER BOX BUTTE AND SOUTHERN SIOUX COUNTIES TODAY.

$$

WYZ109-111-191145-
/O.CAN.KCYS.WW.Y.0019.000000T0000Z-121219T1900Z/
CENTRAL CARBON COUNTY-SOUTHWEST CARBON COUNTY-
INCLUDING THE CITIES OF...RAWLINS...SINCLAIR...HANNA...BAGGS...
DIXON
344 AM MST WED DEC 19 2012

...WINTER WEATHER ADVISORY IS CANCELLED...

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

LIGHT SNOW CAN STILL BE EXPECTED BUT AMOUNTS WILL RANGE FROM 1 TO
3 INCHES OVER CENTRAL AND WESTERN CARBON COUNTY TODAY.


$$

WYZ117-118-192000-
/O.EXT.KCYS.WS.W.0010.000000T0000Z-121220T0100Z/
SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY-
INCLUDING THE CITIES OF...HORSE CREEK...HARRIMAN...WHITAKER...
CHEYENNE
344 AM MST WED DEC 19 2012

...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 PM MST THIS
EVENING...

THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

* TIMING...SNOW ENDING THIS MORNING BUT BLOWING SNOW TO CONTINUE
  INTO THE AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...5 TO 9 INCHES WITH UP TO ONE FOOT OF
  ACCUMULATION IN AND AROUND CHEYENNE. 

* WINDS/VISIBILITIES...NORTH WINDS WILL GUSTS AS HIGH AS 30 MPH
  TODAY...PRODUCING BLOWING AND DRIFTING SNOW. VISIBILITIES COULD
  BE REDUCED TO 1/4 MILE AT TIMES IN OPEN AREAS.

* IMPACTS...TRAVEL WILL BE HAZARDOUS WITH SLICK AND SNOW PACKED 
  ROADS AND POOR VISIBILITIES. 

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.

&&

$$

WYZ112-114-192000-
/O.CON.KCYS.WS.W.0010.000000T0000Z-121220T0100Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
344 AM MST WED DEC 19 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

* TIMING...THROUGH THIS AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...ADDITIONAL SNOW AMOUNTS OF 10 TO 18 
  INCHES. TOTAL SNOW AMOUNTS OF 3 TO 4 FEET WITH HIGHEST AMOUNTS 
  ALONG WEST FACING SLOPES SINCE SATURDAY. 

* WINDS/VISIBILITIES...WEST WINDS WILL GUST AS HIGH AS 20 MPH. 
  INCREASED SNOW RATES TONIGHT WILL REDUCE VISIBILITIES IN THE 
  HEAVIEST SNOW. 

* IMPACTS...MANY OUTDOOR ACTIVITIES WILL BE DIFFICULT IN THE SNOWY
  AND SIERRA MADRE RANGES THROUGH THIS AFTERNOON. OUTDOOR
  ENTHUSIASTS MAY WANT TO RECONSIDER RECREATIONAL ACTIVITIES IN
  THE MOUNTAINS DUE TO THE DANGEROUS WINTER CONDITIONS.

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.

&&

$$

WYZ110-113-115-116-191900-
/O.CON.KCYS.WS.W.0010.000000T0000Z-121219T1900Z/
NORTH SNOWY RANGE FOOTHILLS-UPPER NORTH PLATTE RIVER BASIN-
LARAMIE VALLEY-SOUTH LARAMIE RANGE-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN...SARATOGA...
ENCAMPMENT...RIVERSIDE...LARAMIE...VEDAUWOO...BUFORD...
PUMPKIN VINE
344 AM MST WED DEC 19 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY. 

* TIMING...SNOW WILL TAPER OFF LATE THIS MORNING...BUT BLOWING
  SNOW TO CONTINUE INTO THIS AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...5 TO 9 INCHES WITH 8 TO 14 INCHES
  OVER THE SOUTHERN LARAMIE RANGE.

* WINDS/VISIBILITIES...NORTH TO NORTHWEST WINDS MAY GUSTS AS HIGH
  AS 25 MPH TODAY. VISIBILITIES COULD BE REDUCED TO ONE HALF MILE
  OR LESS DURING PERIODS OF HEAVIER SNOW AND BLOWING SNOW.

* IMPACTS...TRAVEL WILL BE HAZARDOUS WITH SLICK AND SNOW PACKED 
  ROADS AND POOR VISIBILITIES. 

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.

&&

$$

NEZ020-054-WYZ119-192000-
/O.CON.KCYS.WS.W.0010.000000T0000Z-121220T0100Z/
BANNER-KIMBALL-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...HARRISBURG...KIMBALL...BURNS...
CARPENTER...ALBIN...PINE BLUFFS
344 AM MST WED DEC 19 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

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

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

* WINDS/VISIBILITIES...NORTH WINDS WILL INCREASE TO 15 TO 25 MPH
  BY LATE WEDNESDAY MORNING WITH GUSTS TO 35 MPH. THE COMBINATION
  OF GUSTY WINDS AND FALLING SNOW WILL PRODUCE VISIBILITIES TO A
  1/4 MILE OR LESS AT TIMES IN OPEN AREAS.

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

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.

&&

$$

WYZ108-191900-
/O.EXT.KCYS.WW.Y.0019.000000T0000Z-121219T1900Z/
GOSHEN COUNTY-
INCLUDING THE CITY OF...TORRINGTON
344 AM MST WED DEC 19 2012

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

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL NOON MST
TODAY. 

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

* TOTAL SNOW ACCUMULATIONS...2 TO 5 INCHES.

* WINDS/VISIBILITIES...NORTH WINDS WILL INCREASE TO 15 TO 20 MPH
  THIS MORNING WITH WIND GUSTS TO AROUND 30 MPH. THE COMBINATION
  OF GUSTY WINDS AND FALLING SNOW WILL PRODUCE VISIBILITIES LESS
  THAN ONE HALF MILE AT TIMES.

* IMPACTS...ROADS WILL BECOME 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.

&&

$$

WYZ103-105>107-191900-
/O.CON.KCYS.WW.Y.0019.000000T0000Z-121219T1900Z/
NORTH LARAMIE RANGE-SHIRLEY BASIN-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-
INCLUDING THE CITIES OF...MEDICINE BOW...BORDEAUX...GLENDO...
WHEATLAND...CHUGWATER...GUERNSEY
344 AM MST WED DEC 19 2012

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

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

* TIMING...THROUGH NOON WEDNESDAY.

* TOTAL SNOW ACCUMULATIONS...2 TO 5 INCHES.

* WINDS/VISIBILITIES...NORTH WINDS OF 15 TO 20 MPH WILL PRODUCE
  AREAS OF BLOWING AND DRIFTING SNOW.

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

&&

$$

LIEBL
5 follow-up statements
864 
WWUS45 KCYS 191231
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
531 AM MST WED DEC 19 2012

...SNOW TO TAPER OFF FROM WEST TO EAST ACROSS THE AREA TODAY...

.A PACIFIC STORM SYSTEM WILL MOVE OUT OF THE ROCKIES AND INTO THE
PLAINS TODAY. THIS SYSTEM WILL BRING SNOW...GUSTY WINDS...AND
COLDER TEMPERATURES TO SOUTHEAST WYOMING AND THE WESTERN NEBRASKA
PANHANDLE. SNOW WILL SPREAD INTO THE NEBRASKA PANHANDLE THIS
MORNING WHILE SNOW WILL START TO TAPER OFF OVER SOUTHEAST
WYOMING. THE SNOW MAY BE HEAVY AT TIMES. GUSTY WINDS WILL BE
FOUND OVER FAR SOUTHEAST WYOMING AND THE SOUTHERN NEBRASKA
PANHANDLE. THESE GUSTY WINDS WILL PRODUCE WIDESPREAD BLOWING AND
DRIFTING SNOW.

WYZ103-105-191345-
/O.CAN.KCYS.WW.Y.0019.000000T0000Z-121219T1900Z/
NORTH LARAMIE RANGE-SHIRLEY BASIN-
INCLUDING THE CITY OF...MEDICINE BOW
531 AM MST WED DEC 19 2012

...WINTER WEATHER ADVISORY IS CANCELLED...

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

SNOW ACCUMULATIONS THE REST OF THIS MORNING WILL BE ONE INCH OR
LESS OUTSIDE THE MOUNTAINS. MINIMAL SNOW ACCUMLUATION WILL OCCUR
OVER THE NORTHERN LARAMIE RANGE THROUGH THIS MORNING WITH ONLY ONE
TO TWO INCHES POSSIBLE IN THE HIGHER ELEVATIONS.

$$

WYZ112-114-192045-
/O.CON.KCYS.WS.W.0010.000000T0000Z-121220T0100Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
531 AM MST WED DEC 19 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

* TIMING...THROUGH THIS AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...ADDITIONAL SNOW AMOUNTS OF 10 TO 18 
  INCHES. TOTAL SNOW AMOUNTS OF 3 TO 4 FEET WITH HIGHEST AMOUNTS 
  ALONG WEST FACING SLOPES SINCE SATURDAY. 

* WINDS/VISIBILITIES...WEST WINDS WILL GUST AS HIGH AS 20 MPH. 
  INCREASED SNOW RATES TONIGHT WILL REDUCE VISIBILITIES IN THE 
  HEAVIEST SNOW. 

* IMPACTS...MANY OUTDOOR ACTIVITIES WILL BE DIFFICULT IN THE 
  SNOWY AND SIERRA MADRE RANGES THROUGH THIS AFTERNOON. OUTDOOR 
  ENTHUSIASTS MAY WANT TO RECONSIDER RECREATIONAL ACTIVITIES IN 
  THE MOUNTAINS DUE TO THE DANGEROUS WINTER CONDITIONS. 

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.

&&

$$

WYZ110-113-115-116-191900-
/O.CON.KCYS.WS.W.0010.000000T0000Z-121219T1900Z/
NORTH SNOWY RANGE FOOTHILLS-UPPER NORTH PLATTE RIVER BASIN-
LARAMIE VALLEY-SOUTH LARAMIE RANGE-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN...SARATOGA...
ENCAMPMENT...RIVERSIDE...LARAMIE...VEDAUWOO...BUFORD...
PUMPKIN VINE
531 AM MST WED DEC 19 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY. 

* TIMING...SNOW WILL TAPER OFF LATE THIS MORNING...BUT BLOWING 
  SNOW TO CONTINUE INTO THIS AFTERNOON. 

* TOTAL SNOW ACCUMULATIONS...5 TO 9 INCHES WITH 8 TO 14 INCHES 
  OVER THE SOUTHERN LARAMIE RANGE. 

* WINDS/VISIBILITIES...NORTH TO NORTHWEST WINDS MAY GUSTS AS 
  HIGH AS 25 MPH TODAY. VISIBILITIES COULD BE REDUCED TO ONE 
  HALF MILE OR LESS DURING PERIODS OF HEAVIER SNOW AND BLOWING 
  SNOW. 

* IMPACTS...TRAVEL WILL BE HAZARDOUS WITH SLICK AND SNOW PACKED 
  ROADS AND POOR VISIBILITIES. 

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.

&&

$$

NEZ020-054-WYZ117>119-192045-
/O.CON.KCYS.WS.W.0010.000000T0000Z-121220T0100Z/
BANNER-KIMBALL-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...HARRISBURG...KIMBALL...HORSE CREEK...
HARRIMAN...WHITAKER...CHEYENNE...BURNS...CARPENTER...ALBIN...
PINE BLUFFS
531 AM MST WED DEC 19 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

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

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

* WINDS/VISIBILITIES...NORTH WINDS WILL INCREASE TO 15 TO 25 MPH 
  BY LATE WEDNESDAY MORNING WITH GUSTS TO 35 MPH. THE 
  COMBINATION OF GUSTY WINDS AND FALLING SNOW WILL PRODUCE 
  VISIBILITIES TO A 1/4 MILE OR LESS AT TIMES IN OPEN AREAS. 

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

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.

&&

$$

NEZ055-192045-
/O.CON.KCYS.WS.W.0012.121219T1400Z-121220T0100Z/
CHEYENNE-
INCLUDING THE CITY OF...SIDNEY
531 AM MST WED DEC 19 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

* TIMING...SNOW WILL DEVELOP EARLY THIS MORNING AND CONTINUE 
  INTO LATE AFTERNOON BEFORE TAPERING OFF BY EARLY EVENING. 

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

* WINDS/VISIBILITIES...NORTH WINDS WILL INCREASE TO 20 TO 30 MPH 
  THIS AFTERNOON WITH GUSTS AS 40 MPH. THE COMBINATION OF GUSTY 
  WINDS AND FALLING SNOW WILL PRODUCE VISIBILITIES LESS THAN ONE 
  1/4 MILE AT TIMES IN OPEN AREAS. 

* IMPACTS...ROADS WILL BECOME SNOW COVERED AND SLIPPERY AND 
  VISIBILITIES WILL BE SIGNIFICANTLY REDUCED. THESE CONDITIONS 
  WILL MAKE MAKING TRAVEL VERY DIFFICULT...ESPECIALLY THIS 
  AFTERNOON. 

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.

&&

$$

WYZ106>108-191900-
/O.CON.KCYS.WW.Y.0019.000000T0000Z-121219T1900Z/
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-GOSHEN COUNTY-
INCLUDING THE CITIES OF...BORDEAUX...GLENDO...WHEATLAND...
CHUGWATER...GUERNSEY...TORRINGTON
531 AM MST WED DEC 19 2012

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

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

* TIMING...THROUGH NOON WEDNESDAY.

* TOTAL SNOW ACCUMULATIONS...2 TO 5 INCHES.

* WINDS/VISIBILITIES...NORTH WINDS OF 15 TO 20 MPH WILL PRODUCE 
  AREAS OF BLOWING AND DRIFTING SNOW. 

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

&&

$$

NEZ019-021-192045-
/O.CON.KCYS.WW.Y.0020.121219T1400Z-121220T0100Z/
SCOTTS BLUFF-MORRILL-
INCLUDING THE CITIES OF...SCOTTSBLUFF...GERING...BRIDGEPORT...
BAYARD
531 AM 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 DEVELOP EARLY THIS MORNING AND END LATE 
  THIS AFTERNOON. 

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

* WINDS/VISIBILITIES...NORTH WINDS 10 TO 15 MPH WILL STEADILY 
  INCREASE THIS MORNING. BY THIS AFTERNOON WINDS WILL GUST TO 35 
  MPH. THE COMBINATION OF GUSTY WINDS AND FALLING SNOW WILL 
  PRODUCE VISIBILITIES TO 1/4 MILE OR LESS AT TIMES IN OPEN 
  AREAS. 

* IMPACTS...ROADS WILL BECOME 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.

&&

$$

LIEBL
573 
WWUS45 KCYS 191619
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
919 AM MST WED DEC 19 2012

...SNOW TO TAPER OFF FROM WEST TO EAST ACROSS THE AREA TODAY...

.A PACIFIC STORM SYSTEM CURRENTLY OVER THE CENTRAL ROCKIES WILL
MOVE EAST AND WILL BE OVER THE HIGH PLAINS LATE THIS AFTERNOON. 
THE STORM WILL CONTINUE TO BRING SNOW...BRISK WINDS...AND COLDER
TEMPERATURES TO SOUTHEAST WYOMING AND THE WESTERN NEBRASKA
PANHANDLE. SNOW WILL START TO TAPER OFF OVER SOUTHEAST WYOMING
EARLY THIS AFTERNOON AND OVER THE WESTERN NEBRASKA PANHANDLE LATE
THIS AFTERNOON. SNOW MAY BE HEAVY AT TIMES. BRISK WINDS WILL 
GUST AS HIGH AS 40 MPH OVER THE AREA FOR THE REST OF TODAY. THE
WINDS WILL PRODUCE WIDESPREAD BLOWING AND DRIFTING SNOW.

WYZ112-114-192200-
/O.CON.KCYS.WS.W.0010.000000T0000Z-121220T0100Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
919 AM MST WED DEC 19 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

* TIMING...THROUGH THIS AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...ADDITIONAL SNOW AMOUNTS OF 8 TO 16INCHES.
  TOTAL SNOW AMOUNTS OF 3 TO 4 FEET WITH HIGHEST AMOUNTS ALONG
  WEST FACING SLOPES SINCE SATURDAY.

* WINDS/VISIBILITIES...WEST WINDS WILL GUST AS HIGH AS 20 MPH. 
  INCREASED SNOW RATES TONIGHT WILL REDUCE VISIBILITIES IN THE 
  HEAVIEST SNOW. 

* IMPACTS...MANY OUTDOOR ACTIVITIES WILL BE DIFFICULT IN THE 
  SNOWY AND SIERRA MADRE RANGES THROUGH THIS AFTERNOON. OUTDOOR 
  ENTHUSIASTS MAY WANT TO RECONSIDER RECREATIONAL ACTIVITIES IN 
  THE MOUNTAINS DUE TO THE DANGEROUS WINTER CONDITIONS. 

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.

&&

$$

WYZ110-113-115-116-191900-
/O.CON.KCYS.WS.W.0010.000000T0000Z-121219T1900Z/
NORTH SNOWY RANGE FOOTHILLS-UPPER NORTH PLATTE RIVER BASIN-
LARAMIE VALLEY-SOUTH LARAMIE RANGE-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN...SARATOGA...
ENCAMPMENT...RIVERSIDE...LARAMIE...VEDAUWOO...BUFORD...
PUMPKIN VINE
919 AM MST WED DEC 19 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY. 

* TIMING...SNOW WILL TAPER OFF LATE THIS MORNING...BUT BLOWING 
  SNOW TO CONTINUE INTO THIS AFTERNOON. 

* TOTAL SNOW ACCUMULATIONS...5 TO 9 INCHES WITH 8 TO 14 INCHES 
  OVER THE SOUTHERN LARAMIE RANGE. 

* WINDS/VISIBILITIES...NORTH TO NORTHWEST WINDS MAY GUSTS AS 
  HIGH AS 25 MPH TODAY. VISIBILITIES COULD BE REDUCED TO ONE 
  HALF MILE OR LESS DURING PERIODS OF HEAVIER SNOW AND BLOWING 
  SNOW. 

* IMPACTS...TRAVEL WILL BE HAZARDOUS WITH SLICK AND SNOW PACKED 
  ROADS AND POOR VISIBILITIES. 

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.

&&

$$

NEZ020-054-WYZ117>119-192200-
/O.CON.KCYS.WS.W.0010.000000T0000Z-121220T0100Z/
BANNER-KIMBALL-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...HARRISBURG...KIMBALL...HORSE CREEK...
HARRIMAN...WHITAKER...CHEYENNE...BURNS...CARPENTER...ALBIN...
PINE BLUFFS
919 AM MST WED DEC 19 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

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

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

* WINDS/VISIBILITIES...NORTH WINDS WILL GUST AS HIGH AS 40 MPH FOR
  THE REST OF TODAY. THE COMBINATION OF GUSTY WINDS AND FALLING
  SNOW WILL PRODUCE VISIBILITIES TO A 1/4 MILE OR LESS AT TIMES IN
  OPEN AREAS.

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

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.

&&

$$

NEZ055-192200-
/O.CON.KCYS.WS.W.0012.000000T0000Z-121220T0100Z/
CHEYENNE-
INCLUDING THE CITY OF...SIDNEY
919 AM MST WED DEC 19 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

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

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

* WINDS/VISIBILITIES...NORTH WINDS WILL GUST AS HIGH AS 40 MPH FOR
  THE REST OF TODAY. THE COMBINATION OF GUSTY WINDS AND FALLING
  SNOW WILL PRODUCE VISIBILITIES LESS THAN ONE 1/4 MILE AT TIMES
  IN OPEN AREAS.

* IMPACTS...ROADS WILL BECOME SNOW COVERED AND SLIPPERY AND 
  VISIBILITIES WILL BE SIGNIFICANTLY REDUCED. THESE CONDITIONS 
  WILL MAKE MAKING TRAVEL VERY DIFFICULT...ESPECIALLY THIS 
  AFTERNOON. 

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.

&&

$$

WYZ106>108-191900-
/O.CON.KCYS.WW.Y.0019.000000T0000Z-121219T1900Z/
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-GOSHEN COUNTY-
INCLUDING THE CITIES OF...BORDEAUX...GLENDO...WHEATLAND...
CHUGWATER...GUERNSEY...TORRINGTON
919 AM MST WED DEC 19 2012

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

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

* TIMING...THROUGH NOON TODAY.

* TOTAL SNOW ACCUMULATIONS...2 TO 5 INCHES.

* WINDS/VISIBILITIES...NORTH WINDS OF 15 TO 20 MPH WILL PRODUCE 
  AREAS OF BLOWING AND DRIFTING SNOW. 

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

&&

$$

NEZ019-021-192200-
/O.CON.KCYS.WW.Y.0020.000000T0000Z-121220T0100Z/
SCOTTS BLUFF-MORRILL-
INCLUDING THE CITIES OF...SCOTTSBLUFF...GERING...BRIDGEPORT...
BAYARD
919 AM 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 10 TO 15 MPH WILL STEADILY 
  INCREASE THIS MORNING. BY THIS AFTERNOON WINDS WILL GUST TO 35 
  MPH. THE COMBINATION OF GUSTY WINDS AND FALLING SNOW WILL 
  PRODUCE VISIBILITIES TO 1/4 MILE OR LESS AT TIMES IN OPEN 
  AREAS. 

* IMPACTS...ROADS WILL BECOME 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
404 
WWUS45 KCYS 191847
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1147 AM MST WED DEC 19 2012

...SNOW WILL CONTINUE TO TAPER OFF FROM WEST TO EAST ACROSS THE
AREA THIS AFTERNOON...

.A PACIFIC STORM SYSTEM CURRENTLY OVER THE CENTRAL ROCKIES WILL
MOVE EAST AND WILL BE OVER THE HIGH PLAINS LATE THIS AFTERNOON.
THE STORM WILL CONTINUE TO BRING SNOW...BRISK WINDS...AND COLDER
TEMPERATURES TO PARTS OF SOUTHEAST WYOMING AND THE WESTERN
NEBRASKA PANHANDLE. SNOW WILL CONTINUE TO TAPER OFF OVER SOUTHEAST
WYOMING THROUGH EARLY THIS AFTERNOON AND OVER THE WESTERN NEBRASKA
PANHANDLE THROUGH LATE THIS AFTERNOON. BRISK WINDS WILL GUST AS
HIGH AS 40 MPH OVER THE AREA THIS AFTERNOON. THE WINDS WILL
PRODUCE WIDESPREAD BLOWING AND DRIFTING SNOW.

WYZ110-113-115-116-192000-
/O.CAN.KCYS.WS.W.0010.000000T0000Z-121219T1900Z/
NORTH SNOWY RANGE FOOTHILLS-UPPER NORTH PLATTE RIVER BASIN-
LARAMIE VALLEY-SOUTH LARAMIE RANGE-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN...SARATOGA...
ENCAMPMENT...RIVERSIDE...LARAMIE...VEDAUWOO...BUFORD...
PUMPKIN VINE
1147 AM MST WED DEC 19 2012

...WINTER STORM WARNING IS CANCELLED...

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

THE STORM SYSTEM HAS MOVED EAST WITH ONLY AREAS OF LIGHT SNOW OR
FLURRIES CONTINUING THROUGH EARLY THIS AFTERNOON. FOR THAT
REASON THE PREVIOUSLY ISSUED WINTER STORM WARNING HAS BEEN 
CANCELLED. BRISK NORTHWEST WINDS WILL GUST AS HIGH AS 25 MPH AT
TIMES THROUGH THE AFTERNOON...PRODUCING AREAS OF BLOWING AND 
DRIFTING SNOW.

$$

NEZ019-192000-
/O.CAN.KCYS.WW.Y.0020.000000T0000Z-121220T0100Z/
SCOTTS BLUFF-
INCLUDING THE CITIES OF...SCOTTSBLUFF...GERING
1147 AM MST WED DEC 19 2012

...WINTER WEATHER ADVISORY IS CANCELLED...

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

THE STORM SYSTEM HAS MOVED EAST WITH ONLY AREAS OF LIGHT SNOW OR
FLURRIES CONTINUING THROUGH MID AFTERNOON. FOR THAT REASON THE
PREVIOUSLY ISSUED WINTER WEATHER ADVISORY HAS BEEN CANCELLED.
BRISK NORTHWEST WINDS WILL GUST AS HIGH AS 35 MPH AT TIMES THROUGH
THE AFTERNOON...PRODUCING BLOWING AND DRIFTING SNOW.

$$

WYZ106>108-192000-
/O.CAN.KCYS.WW.Y.0019.000000T0000Z-121219T1900Z/
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-GOSHEN COUNTY-
INCLUDING THE CITIES OF...BORDEAUX...GLENDO...WHEATLAND...
CHUGWATER...GUERNSEY...TORRINGTON
1147 AM MST WED DEC 19 2012

...WINTER WEATHER ADVISORY IS CANCELLED...

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

THE STORM SYSTEM HAS MOVED EAST WITH ONLY AREAS OF LIGHT SNOW OR
FLURRIES CONTINUING THROUGH EARLY THIS AFTERNOON. FOR THAT
REASON THE PREVIOUSLY ISSUED WINTER WEATHER ADVISORY HAS BEEN 
CANCELLED. BRISK NORTHWEST WINDS WILL GUST AS HIGH AS 25 MPH AT
TIMES THROUGH THE AFTERNOON...PRODUCING AREAS OF BLOWING AND
DRIFTING SNOW.

$$

WYZ112-114-192300-
/O.CON.KCYS.WS.W.0010.000000T0000Z-121220T0100Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
1147 AM MST WED DEC 19 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

* TIMING...THROUGH THIS AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...ADDITIONAL SNOW AMOUNTS OF 6 TO 12
  INCHES. TOTAL SNOW AMOUNTS OF 3 TO 4 FEET WITH HIGHEST AMOUNTS
  ALONG WEST FACING SLOPES SINCE SATURDAY.

* WINDS/VISIBILITIES...WEST WINDS WILL GUST AS HIGH AS 20 MPH.
  VISIBILITIES WILL BE REDUCED TO A MILE OR LESS AT TIMES IN THE
  SNOW. 

* IMPACTS...MANY OUTDOOR ACTIVITIES WILL BE DIFFICULT IN THE 
  SNOWY AND SIERRA MADRE RANGES THROUGH THIS AFTERNOON. OUTDOOR 
  ENTHUSIASTS MAY WANT TO RECONSIDER RECREATIONAL ACTIVITIES IN 
  THE MOUNTAINS DUE TO THE DANGEROUS WINTER CONDITIONS. 

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.

&&

$$

NEZ020-054-WYZ117>119-192300-
/O.CON.KCYS.WS.W.0010.000000T0000Z-121220T0100Z/
BANNER-KIMBALL-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...HARRISBURG...KIMBALL...HORSE CREEK...
HARRIMAN...WHITAKER...CHEYENNE...BURNS...CARPENTER...ALBIN...
PINE BLUFFS
1147 AM MST WED DEC 19 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

* TIMING...SNOW WILL CONTINUE TO TAPER OFF THROUGH THE AFTERNOON. 

* TOTAL SNOW ACCUMULATIONS...4 TO 10 INCHES. ADDITIONAL SNOW WILL
  BE AN INCH OR LESS.  

* WINDS/VISIBILITIES...NORTH WINDS WILL GUST AS HIGH AS 40 MPH FOR
  THE REST OF TODAY. 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 TRAVEL 
  DIFFICULT.

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.

&&

$$

NEZ055-192300-
/O.CON.KCYS.WS.W.0012.000000T0000Z-121220T0100Z/
CHEYENNE-
INCLUDING THE CITY OF...SIDNEY
1147 AM MST WED DEC 19 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

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 FOR
  THE REST OF TODAY. THE COMBINATION OF GUSTY WINDS AND FALLING
  SNOW WILL PRODUCE VISIBILITIES LESS THAN ONE HALF MILE AT TIMES IN
  OPEN AREAS.

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

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.

&&

$$

NEZ021-192300-
/O.CON.KCYS.WW.Y.0020.000000T0000Z-121220T0100Z/
MORRILL-
INCLUDING THE CITIES OF...BRIDGEPORT...BAYARD
1147 AM 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
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
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

What forecasters said that day

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

NWS Cheyenne, WY wrote its last area forecast discussion before this winter storm warning went out at Dec 18, 11:06 PM MST, 4 hours 38 minutes earlier.

Area forecast discussion, Dec 18, 11:06 PM MST, 4 hours 38 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHEYENNE WY
1106 PM MST TUE DEC 18 2012

.AVIATION...06Z ISSUANCE...
POOR AVIATION CONDITIONS WILL CONTINUE THROUGH AT LEAST MIDDAY
WEDNESDAY AS AN AREA OF LOW PRESSURE PRODUCES A PERIOD OF SNOW
FOR ALL OF THE SOUTHEAST WYOMING AND WESTERN NEBRASKA PANHANDLE
TERMINALS.

SE WYOMING TERMINALS...IFR/LIFR CONDITIONS TO PERSIST THROUGH
WEDNESDAY MORNING. THESE POOR CONDITIONS WILL IMPROVE AT KRWL
AFTER 15Z AND AT KLAR/KCYS AFTER AROUND 18Z WITH VFR CONDITIONS
RETURNING AT THAT TIME. WITH HEAVY EVENING SNOW AM CONCERNED ABOUT
BLSN AS WINDS COME UP AT KCYS WEDNESDAY AFTERNOON...SO HAVE
INCLUDED IN THE TAF. WINDS SHOULD SUBSIDE SOME WEDNESDAY EVENING
BEFORE COMING UP AGAIN THURSDAY MORNING.

WRN NEBRASKA PANHANDLE AIRPORTS...VFR CONDITIONS WILL PREVAIL
UNTIL BETWEEN 06-09Z AT WHICH TIMES CIGS/VSBYS WILL DROP INTO
MVFR AND EVENTUALLY IFR CATEGORIES ON WEDNESDAY MORNING. THESE
CONDITIONS WILL LINGER UNTIL BETWEEN 19-22Z ON WEDNESDAY AFTERNOON
BEFORE IMPROVING.

&&

.PREV DISCUSSION... /ISSUED 836 PM MST TUE DEC 18 2012/

UPDATE...
IMPRESSIVE BAND OF VERY HEAVY SNOW HAS SAT NEARLY STATIONARY OVER
CHEYENNE SINCE 6P RESULTING IN 2 INCH/HOUR SNOWFALL RATES OBSERVED
BETWEEN 7 AND 8 PM AND ALREADY NEARLY 4 INCHES ON THE GROUND. THIS
AREA OF SNOW HAVE BEEN RELATIVELY LOCALIZED THUS FAR...PRIMARILY
CONFINED TO THE I80 CORRIDOR FROM NEAR SARATOGA EAST THROUGH
LARAMIE AND TO CHEYENNE. SNOW HAS JUST BEGAN TO FALL AT PINE
BLUFFS OVER THE PAST HOUR. SO...HAVE TRENDED SNOWFALL AMOUNTS UP
ACROSS MAINLY WESTERN AND CENTRAL LARAMIE COUNTY THIS EVENING.
WITH SUCH HEAVY RATES THIS EVENING AT CHEYENNE...WOULD NOT BE
SURPRISED AT ALL TO SEE 9 OR 10 INCHES ON THE GROUND BY MIDDAY
WEDNESDAY.

INITIAL GLANCE AT 00Z NAM DATA CONTINUES TO SUGGEST THIS AREA OF
SNOW EXPANDING ESPECIALLY AFTER MIDNIGHT THROUGH WEDNESDAY
MORNING. IT SUGGESTS A LATER START OVER THE WESTERN NEBRASKA
PANHANDLE COMPARED TO THE GFS...BUT WANT TO AWAIT THE 00Z GFS
BEFORE MAKING TOO MANY ADJUSTMENTS TO DELAY TIMING. THE ONLY OTHER
CHANGE WAS TO SOUTHWEST CARBON COUNTY WHERE 00Z DATA HAS COME IN
DRIER AND DIXON HAS NOT CARRIED MUCH SNOW THIS EVENING. SO HAVE
DOWNGRADED THAT AREA INTO A WINTER WEATHER ADVISORY.

PREV DISCUSSION... /ISSUED 445 PM MST TUE DEC 18 2012/

AVIATION...00Z ISSUANCE...
CONDITIONS WILL DETERIORATE TONIGHT AS AN AREA OF LOW PRESSURE
PRODUCES A PERIOD OF LIGHT OR MODERATE SNOW FOR ALL OF THE
SOUTHEAST WYOMING AND WESTERN NEBRASKA PANHANDLE TERMINALS.

SE WYOMING TERMINALS...VFR CONDITIONS WILL PREVAIL UNTIL 01 OR 02Z
AT WHICH TIME CIGS/VSBYS WILL BEGIN TO REDUCE INTO THE MVFR AND
EVENTUALLY THE IFR/LIFR CATEGORIES FOR WEDNESDAY MORNING. THESE
POOR CONDITIONS WILL IMPROVE AT KRWL AFTER 15Z AND AT KLAR/KCYS
AFTER AROUND 18Z WITH VFR CONDITIONS RETURNING AT THAT TIME.

WRN NEBRASKA PANHANDLE AIRPORTS...VFR CONDITIONS WILL PREVAIL
UNTIL BETWEEN 06-09Z AT WHICH TIMES CIGS/VSBYS WILL DROP INTO
MVFR AND EVENTUALLY IFR CATEGORIES ON WEDNESDAY MORNING. THESE
CONDITIONS WILL LINGER UNTIL BETWEEN 19-22Z ON WEDNESDAY AFTERNOON
BEFORE IMPROVING.

PREV DISCUSSION... /ISSUED 347 PM MST TUE DEC 18 2012/

SHORT TERM...TONIGHT THROUGH WEDNESDAY NIGHT...
A PROGRESSIVE SHORTWAVE TROUGH CURRENTLY OVER IDAHO AND MONTANA
WILL MOVE EAST THROUGH WEDNESDAY NIGHT.  THAT FEATURE WILL BRING
A PERIOD OF SNOW...WINDS AND COLDER TEMPERATURES TO THE CWA
THROUGH WEDNESDAY.

THE SHORTWAVE TROUGH CONTINUES TO BE HANDLED SIMILARLY BY MODELS
AS IT CROSSES THE CENTRAL ROCKIES WEDNESDAY AND WEDNESDAY EVENING.
THE SOUTHERN PORTION OF FEATURE WILL BE THE MOST ENERGETIC AS IR
MOVES ACROSS SOUTHERN COLORADO.  THE RESULTING SURFACE LOW IS
CURRENTLY DEVELOPING OVER UTAH AND NORTHERN COLORADO.  THE SURFACE
LOW WILL ORGANIZE OVER SOUTHEAST COLORADO BY 12Z WEDNESDAY AND
THEN WILL DEEPEN AS IT MOVES EAST AND OVER THE PLAINS.

SNOW HAS BEEN FALLING OVER AND NEAR THE SNOWY AND SIERRA MADRE
RANGES ALL DAY SO FAR.  CLOUD TOPS CONTINUE TO COOL OVER SOUTHERN
WYOMING...BUT SNOW HAS YET TO BECOME WIDESPREAD.  THE SNOW WILL
SPREAD FROM WEST TO EAST OVER THE CWA TONIGHT WITH THE APPROACH OF
THE SHORTWAVE TROUGH.  THE SNOW WILL BE AIDED BY MID LEVEL
FRONTOGENESIS...SURFACE FORCING AND FAVORABLE JET DYNAMICS.  THE
NAM IS SLIGHTLY MORE MOIST THAN THE GFS FOR THIS EVENT.  12Z
PRECIPITABLE WATER VALUES SUGGEST THAT THE GFS MAY BE CLOSER TO
ACTUAL PRECIPITATION.  HAVE BUMPED UP SNOW AMOUNTS FOR TONIGHT AND
WEDNESDAY DUE TO THE LIFT AND EXPECTED SNOW RATIOS.  MOST OF THE
LOWER ELEVATIONS NEAR THE COLORADO BORDER ARE NOW IN THE 5 TO 8
INCH RANGE.  ALONG WITH THE SNOW WILL BE STRONG NORTHERLY SURFACE
WINDS LATER TONIGHT AND WEDNESDAY MORNING.  THE SNOW AND WINDS
WILL PRODUCE BLOWING AND DRIFTING SNOW AND POOR TRAVEL CONDITIONS.
HAVE WENT AHEAD AND UPGRADED THE ADVISORY TO A WINTER STORM WARNING
IN THE FAR SOUTH PART OF THE CWA AND ADDED A WINTER WEATHER
ADVISORY FOR NEARBY AREAS FURTHER NORTH.

THE SNOW WILL END AND CLOUDS DECREASE OVER THE CWA WEDNESDAY
EVENING.  THE SURFACE PRESSURE GRADIENT THEN TIGHTENS OVER THE
WYOMING PART OF THE CWA LATER WEDNESDAY NIGHT.  THAT WILL SHIFT THE
FOCUS ON THE WINDS TO SOUTHEAST WYOMING AND AREAS ALONG AND WEST
OF THE LARAMIE RANGE.  THOSE WINDS WILL PRODUCE BLOWING AND
DRIFTING SNOW OVER THAT AREA LATER WEDNESDAY NIGHT.

LONG TERM...THURSDAY THROUGH TUESDAY.

THURSDAY...PROGRESSIVE RIDGING ALOFT MOVES OVERHEAD...PRODUCING A
WARMING TREND. DECENT SURFACE THROUGH 700 MB GRADIENTS SUGGEST A
WINDY DAY WITH AREAS OF BLOWING SNOW DUE TO THE EXPECTED POWDERY
NATURE OF THE SNOW THAT FALLS THROUGH WEDNESDAY AFTERNOON.

FRIDAY/SATURDAY...RIDGE ALOFT FLATTENS AND MOVES TO OUR EAST WITH
BRISK SOUTHWEST FLOW ALOFT. WARMING DOWNSLOPE WINDS WILL AID IN THE
WARMING TREND...THOUGH HAVE TEMPERED MAXIMUM TEMPERATURES DOWN DUE
TO EXPECTED SNOW PACK AND HIGH SNOW ALBEDO.

SUNDAY...FAST MOVING LOW AMPLITUDE SHORTWAVE TROUGH MOVES EAST
ACROSS THE NORTHERN PLAINS STATES SENDING ANOTHER COLD FRONT
SOUTHWARD ACROSS THE DAKOTAS...EASTERN MONTANA AND NORTHEAST
WYOMING...THOUGH IT LOOKS LIKE THE COLD AIR WILL REMAIN NORTH OF OUR
COUNTIES.

MONDAY...QUITE STARK DIFFERENCES BETWEEN THE MODELS WITH RESPECT TO
SYNOPTIC EVOLUTION OF THE SHORTWAVE TROUGH MOVING ACROSS THE REGION.
THE 18/12Z ECMWF MAINTAINS A TIGHT CLOSED UPPER LOW ACROSS WESTERN
SOUTH DAKOTA BY LATE CHRISTMAS EVE...WHILE THE GFS SHOWS A DEEPENING
UPPER TROUGH ACROSS THE GREAT BASIN STATES. IN EITHER EVENT...SNOW
CHANCES WILL INCREASE AND WILL HAVE CHANCES OF SNOW IN THE AFTERNOON
NORTH OF A LARAMIE TO SCOTTSBLUFF LINE.

CHRISTMAS...GFS SOLUTION LOOKS MORE BELIEVABLE THAN THE ECMWF WITH
EVOLUTION OF THE NEXT UPPER TROUGH...AND THE GFS SHOWS A DEEPENING
CLOSED LOW NEAR THE FOUR CORNERS WITH COLD ARCTIC AIR POURING
SOUTHWARD ACROSS OUR REGION FROM CANADA. THUS WILL MATCH UP WITH OUR
SURROUNDING OFFICES AND PAINT CHANCES FOR SNOW ACROSS OUR COUNTIES.
HOPEFULLY...WILL SEE A WHITE CHRISTMAS ACROSS OUR REGION...WHICH
WILL ALSO BE BENEFICIAL FOR PRECIPITATION NEEDS IN THIS RELATIVELY
DRY YEAR.

&&

.FIRE WEATHER...FIRE WEATHER CONCERNS WILL BE MINIMAL THROUGH
THURSDAY DUE TO THE COOL CONDITIONS AND SNOWFALL TONIGHT AND
WEDNESDAY. DRIER AND WARMER WEATHER WILL RETURN TO THE CWA FRIDAY
AND THROUGH THE WEEKEND. ANOTHER STORM SYSTEM WILL BRING COOLER
TEMPERATURES AND SNOW TO THE CWA MONDAY AND CHRISTMAS DAY.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...WINTER STORM WARNING UNTIL 6 PM WEDNESDAY FOR WYZ112-WYZ114.
     WINTER STORM WARNING UNTIL NOON WEDNESDAY FOR WYZ110-WYZ113-
     WYZ115-WYZ116-WYZ117-WYZ118.
     WINTER STORM WARNING UNTIL 6 PM WEDNESDAY FOR WYZ119.
     WINTER WEATHER ADVISORY UNTIL NOON WEDNESDAY FOR WYZ103-WYZ105-
     WYZ106-WYZ107-WYZ109-WYZ111.
     WINTER WEATHER ADVISORY UNTIL 6 PM WEDNESDAY FOR WYZ108.
NE...WINTER WEATHER ADVISORY UNTIL 6 PM WEDNESDAY FOR NEZ003-NEZ019-
     NEZ021-NEZ096.
     WINTER STORM WARNING UNTIL 6 PM WEDNESDAY FOR NEZ020-NEZ054-
     NEZ055.

&&

UPDATE/AVIATION...HAHN
SHORT TERM/FIRE WEATHER...WEILAND
LONG TERM/AVIATION...RUBIN
Hazardous weather outlook, Dec 18, 3:40 PM MST, 12 hours 4 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
340 PM MST TUE DEC 18 2012

NEZ020-021-054-055-WYZ110-112-114>119-191200-
BANNER-MORRILL-KIMBALL-CHEYENNE-NORTH SNOWY RANGE FOOTHILLS-
SIERRA MADRE RANGE-SNOWY RANGE-LARAMIE VALLEY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY-
EAST LARAMIE COUNTY-
340 PM MST TUE DEC 18 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA
PANHANDLE...SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SNOW WILL CONTINUE TO FALL OVER THE MOUNTAINS THROUGH TONIGHT
WHILE SPREADING EAST ACROSS FAR SOUTHEASTERN WYOMING INTO THE
SOUTHERN NEBRASKA PANHANDLE TONIGHT. ACCUMULATIONS OF SNOW ARE
EXPECTED AND THE SNOW WILL BE HEAVY AT TIMES. WINDS WILL INCREASE
LATE TONIGHT AND WILL PRODUCE AREAS OF BLOWING SNOW MAINLY ALONG
AND SOUTH OF INTERSTATE 80 AND OVER AND EAST OF THE LARAMIE RANGE.
A VARIETY OF WINTER WEATHER WARNINGS AND ADVISORIES ARE IN EFFECT
TONIGHT OVER SOUTHEAST WYOMING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

SNOW WILL END OVER THE AREA WEDNESDAY AFTERNOON BUT STRONG WINDS ARE
EXPECTED AROUND THE MOUNTAINS WEDNESDAY AND INTO THURSDAY WHICH WILL
CREATE AREAS OF BLOWING SNOW. TOTAL SNOWFALL WILL BE FROM 5 TO 8
INCHES OVER THE LOWER ELEVATIONS NEAR THE COLORADO BORDER WITH
LARGER AMOUNTS OVER THE MOUNTAINS.  LIGHTER AMOUNTS WILL FALL OVER
AREAS FURTHER NORTH. THE WINTER WEATHER ADVISORIES AND WARNINGS
REMAIN IN EFFECT THROUGH WEDNESDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THIS AFTERNOON AND TONIGHT.

&&

THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND
CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT...
HTTP://WEATHER.GOV/CHEYENNE

NEZ002-003-019-095-096-WYZ101>109-111-113-191200-
DAWES-BOX BUTTE-SCOTTS BLUFF-NORTH SIOUX-SOUTH SIOUX-
CONVERSE COUNTY LOWER ELEVATIONS-NIOBRARA COUNTY-
NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL CARBON COUNTY-SOUTHWEST
CARBON COUNTY-UPPER NORTH PLATTE RIVER BASIN-
340 PM MST TUE DEC 18 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA
PANHANDLE...SOUTH CENTRAL WYOMING.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SNOW WILL DEVELOP OVER THE AREA TONIGHT AND WILL BE HEAVY AT
TIMES.  NORTHERLY WINDS WILL ALSO INCREASE OVER THE AREA LATE
TONIGHT.  ACCUMLATIONS OF SNOW ARE LIKELY TONIGHT.  A VARIETY OF
WINTER WEATHER WARNINGS AND ADVISORIES ARE IN EFFECT FOR TONIGHT.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NOW WILL END OVER THE AREA WEDNESDAY AFTERNOON BUT STRONG WINDS ARE
EXPECTED IN MANY AREAS ON WEDNESDAY THROUGH THURSDAY WHICHH WILL
CREATE AREAS OF BLOWING SNOW. TOTAL SNOWFALL WILL BE FROM 5 TO 8
INCHES OVER THE LOWER ELEVATIONS NEAR THE COLORADO BORDER WITH
LARGER AMOUNTS OVER THE MOUNTAINS.  LIGHTER AMOUNTS WILL FALL OVER
AREAS FURTHER NORTH. THE WINTER WEATHER ADVISORIES AND WARNINGS
REMAIN IN EFFECT THROUGH WEDNESDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THIS AFTERNOON AND TONIGHT.

&&

THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND
CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT...
HTTP://WEATHER.GOV/CHEYENNE

WEILAND

In the hours before

Local storm report, Dec 18, 11:35 PM MST, 4 hours 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
1135 PM MST TUE DEC 18 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1100 PM     HEAVY SNOW       CHEYENNE                41.15N 104.79W
12/18/2012  M6.8 INCH        LARAMIE            WY   OFFICIAL NWS OBS

            MOST ACCUMULATION WAS OVER A 4 HOUR PERIOD.

1100 PM     SNOW             8 E CHEYENNE            41.15N 104.64W
12/18/2012  M5.0 INCH        LARAMIE            WY   PUBLIC

1100 PM     HEAVY SNOW       3 E CHEYENNE            41.15N 104.73W
12/18/2012  M9.0 INCH        LARAMIE            WY   BROADCAST MEDIA

1100 PM     HEAVY SNOW       8 WSW CHEYENNE          41.10N 104.93W
12/18/2012  M7.0 INCH        LARAMIE            WY   TRAINED SPOTTER

&&

LIEBL

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 19, 3:44 AM MSTWinter Weather AdvisoryCYSMorrill, Scotts Bluff14 hr
Dec 19, 2:38 PM MSTWinter Weather AdvisoryCYSCheyenne, Kimball20 hr

Nearby

Winter Storm Warnings in Nebraska, 2012Every winter storm 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.