Alert archive / Wyoming / Winter Storm Warnings in 2015

Winter Storm Warning 13, NWS Cheyenne, WY

December 10, 2015Albany County, Carbon County, Laramie County, Wyoming

NWS Cheyenne, WY issued this winter storm warning at Dec 10, 2015, 12:29 PM MST for Albany County, Carbon County, Laramie County, Wyoming. It took effect at Dec 10, 2015, 11:00 PM MST. It was in force for 38 hr. 31 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 10, 2015, 12:29 PM MST (19:29 UTC)
In effect from
Dec 10, 2015, 11:00 PM MST
Expired
Dec 12, 2015, 1:29 PM MST
In force
38 hr
Issued by
NWS Cheyenne, WY

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

The radar

The Cheyenne radar (KCYS), 93 km from the middle of the area, began a volume at 19:31 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 11, 9:00 PM MSTSNOW 3Laramie, WY
Dec 11, 9:30 PM MSTSNOW 1.52 Ne Laramie, WY
Dec 11, 11:00 PM MSTHEAVY SNOW 1428 E Savery, WYWHISKEY PARK SNOTEL SITE. ELEVATION 8950 FEET. SWE 0.7 INCHES FROM 10/11PM TO 11/11 PM. 20 TO 1 RATIO USED.
Dec 12, 4:55 AM MSTSNOW 113 Nw Centennial, WYSNOWY RANGE SKI AREA. REPORT RECEIVED VIA TWITTER
Dec 12, 5:00 AM MSTSNOW 820 Wnw Encampment, WYDIVIDE PEAK SNOTEL SITE. ELEVATION 8880 FEET. SWE 0.4 INCHES FROM 10/11PM THRU 12/5AM. 20 TO 1 RATIO USED.
Dec 12, 5:00 AM MSTSNOW 1010 Ssw Arlington, WYSAND LAKE SNOTEL SITE. ELEVATION 10050 FEET. SWE 0.5 INCHES FROM 10/11PM TO 12/5AM. 20 TO 1 RATIO USED.
Dec 12, 5:00 AM MSTHEAVY SNOW 127 Nw Centennial, WYBROOKLYN LAKE SNOTEL SITE. ELEVATION 10240 FEET. SWE 0.6 INCHES FROM 10/11PM THRU 12/5AM. 20 TO 1 RATIO USED.
Dec 12, 5:00 AM MSTHEAVY SNOW 1421 Sse Elk Mountain, WYMEDICINE BOW SNOTEL SITE. ELEVATION 10510 FEET. SWE 0.7 INCHES FROM 10/11PM THRU 12/5AM. 20 TO 1 RATIO USED.
Dec 12, 7:00 AM MSTSNOW 0.5Warren Af Base, WY
Dec 12, 7:00 AM MSTSNOW 0.73 Ese Laramie, WY
Dec 12, 7:00 AM MSTSNOW 1.61 Se Laramie, WY
Dec 12, 7:00 AM MSTSNOW 21 N Laramie, WY
Dec 12, 7:00 AM MSTSNOW 2.3S Laramie, WY
Dec 12, 7:00 AM MSTSNOW 3.6Ese Riverside, WY
Dec 12, 7:00 AM MSTSNOW 4.89 Wsw Rock River, WY
Dec 12, 7:00 AM MSTSNOW 5.718 S Rock River, WY
Dec 12, 7:00 AM MSTHEAVY SNOW 7.31 Nne Centennial, WY
Dec 12, 7:10 AM MSTSNOW 4.89 Wsw Rock River, WY
Dec 12, 7:30 AM MSTSNOW 0.4Sinclair, WY
Dec 12, 8:00 AM MSTSNOW 1E Hanna, WY
Dec 12, 9:00 AM MSTHEAVY SNOW 8Albany, WY
Dec 12, 11:00 AM MSTSNOW 016 Ene Riverside, WYSOUTH BRUSH CREEK SNOTEL IN THE SNOWY RANGE. ELEVATION 8440 FEET. SNOW WATER EQUIVALENT IS 0.4 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 36 HOURS.
Dec 12, 11:00 AM MSTSNOW 816 Ene Riverside, WYSOUTH BRUSH CREEK SNOTEL IN THE SNOWY RANGE. ELEVATION 8440 FEET. SNOW WATER EQUIVALENT IS 0.4 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 36 HOURS.
Dec 12, 11:00 AM MSTSNOW 1020 Wnw Encampment, WYDIVIDE PEAK SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8880 FEET. SNOW WATER EQUIVALENT IS 0.5 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 36 HOURS.
Dec 12, 11:00 AM MSTHEAVY SNOW 1210 Ssw Arlington, WYSAND LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10050 FEET. SNOW WATER EQUIVALENT IS 0.6 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 36 HOURS.
Dec 12, 11:00 AM MSTHEAVY SNOW 1412 W Centennial, WYNORTH FRENCH CREEK SNOTEL IN THE SNOWY RANGE. ELEVATION 10130 FEET. SNOW WATER EQUIVALENT IS 0.7 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 36 HOURS.
Dec 12, 11:00 AM MSTHEAVY SNOW 147 Nw Centennial, WYBROOKLYN LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10240 FEET. SNOW WATER EQUIVALENT IS 0.7 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 36 HOURS.
Dec 12, 11:00 AM MSTHEAVY SNOW 1621 Sse Elk Mountain, WYMEDICINE BOW SNOTEL IN THE SNOWY RANGE. ELEVATION 10500 FEET. SNOW WATER EQUIVALENT IS 0.8 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 36 HOURS.
Dec 12, 11:00 AM MSTHEAVY SNOW 1828 E Savery, WYWHISKEY PARK SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8950 FEET. SNOW WATER EQUIVALENT IS 0.9 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 36 HOURS.
Dec 12, 11:20 AM MSTSNOW 5.515 E Cheyenne, WYRECEIVED VIA FACEBOOK.
Dec 12, 1:34 PM MSTSNOW 312 E Cheyenne, WYREPORT RECEIVED VIA FACEBOOK.

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

The nearest sounding before it

Riverton, WY (KRIW), launched 12:00Z, 7.5 hours before the alert went out and 274 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Riverton, WY at 12:00Z on 2015-12-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 12:00Z on 2015-12-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 150 square meters per square second.1939587897117136156Sfc1 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
2092 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
150 m²/s²
0-3 km storm-relative helicity
317 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.

819 
WWUS45 KCYS 101929
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1229 PM MST THU DEC 10 2015

...PROLONGED AND WIDESPREAD SNOW RETURNING TO SOUTHEAST WYOMING...

.A PACIFIC STORM SYSTEM WILL MOVE INTO THE ROCKIES BEGINNING
TONIGHT AND WILL SLOWLY MOVE INTO SOUTHEAST WYOMING FRIDAY NIGHT
INTO SATURDAY. SNOW WILL BEGIN IN THE SNOWY AND SIERRA MADRE
RANGES AS EARLY AS THIS EVENING AND WILL SPREAD EAST FRIDAY.
ENERGY FROM THE SOUTHWEST PART OF THE DISTURBANCE WILL MOVE
NORTHEAST FRIDAY NIGHT INTO SATURDAY WITH SNOW BECOMING WIDESPREAD
ACROSS MUCH OF SOUTHERN WYOMING. SNOW TO PERSIST INTO SATURDAY
AFTERNOON BEFORE ENDING SATURDAY NIGHT.

WYZ112-114-111200-
/O.NEW.KCYS.WS.W.0013.151211T0600Z-151212T1200Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
1229 PM MST THU DEC 10 2015

...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 AM
MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 11 PM THIS
EVENING TO 5 AM MST SATURDAY.

* TIMING...11 PM TONIGHT THROUGH 5 AM SATURDAY

* TOTAL SNOW ACCUMULATIONS...12 TO 15 INCHES WITH HIGHER AMOUNTS
  ON EAST AND NORTHEAST FACING SLOPES.

* WINDS/VISIBILITY...WESTERLY WINDS OF 15 TO 25 MPH WITH GUSTS TO
  40 MPH TONIGHT THROUGH FRIDAY NOON WILL CREATE AREAS OF BLOWING
  SNOW WITH VISIBILITIES UNDER A QUARTER MILE AT TIMES.

* IMPACTS...MOSTLY TO TRAVEL DUE TO EXPECTED SLICK ROADS AND 
  LOWERED 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.

&&

$$

WYZ110-115>117-111200-
/O.NEW.KCYS.WS.A.0011.151212T0300Z-151213T0000Z/
NORTH SNOWY RANGE FOOTHILLS-LARAMIE VALLEY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN...LARAMIE...
VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN...
WHITAKER
1229 PM MST THU DEC 10 2015

...WINTER STORM WATCH IN EFFECT FROM FRIDAY EVENING THROUGH
SATURDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM FRIDAY EVENING THROUGH
SATURDAY AFTERNOON. 

* TIMING...FRIDAY EVENING THROUGH SATURDAY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...6 TO 10 INCHES POSSIBLE.

* WINDS/VISIBILITY...SOUTHEAST WINDS OF 15 TO 25 MPH WITH GUSTS TO
  30 MPH POSSIBLE THAT WILL CREATE AREAS OF DRIFTING SNOW.
  VISIBILITIES COULD BE REDUCED TO UNDER A HALF MILE AT TIMES
  ALONG INTERSTATE 80 BETWEEN CHEYENNE AND ARLINGTON.

* IMPACTS...MAINLY TO TRANSPORTATION. TRAVEL ALONG INTERSTATE 80
  BETWEEN CHEYENNE AND ARLINGTON COULD BE IMPACTED WITH SLICK AND
  SNOW COVERED ROADS AS WELL AS SIGNIFICANTLY REDUCED
  VISIBILITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR
THE LATEST FORECASTS.

&&

$$
6 follow-up statements
483 
WWUS45 KCYS 111108
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
408 AM MST FRI DEC 11 2015

...WIDESPREAD ACCUMULATING SNOW RETURNING TO SOUTHEAST WYOMING
AND WESTERN NEBRASKA PANHANDLE DURING THE NEXT 24 TO 48 HOURS...

.A LARGE PACIFIC LOW PRESSURE SYSTEM WILL MOVE EAST FROM THE 
INTERMOUNTAIN WEST ACROSS THE ROCKIES TODAY THROUGH SATURDAY.
SNOW WILL BEGIN TO FALL OVER MUCH OF CARBON COUNTY THIS MORNING
AND GRADUALLY SPREAD EAST THIS AFTERNOON. ENERGY AND ABUNDANT
PACIFIC MOISTURE WILL MOVE NORTHEAST TONIGHT AND SATURDAY WITH
WIDESPREAD ACCUMULATING SNOW ACROSS MUCH OF SOUTHEAST WYOMING AND
THE WESTERN NEBRASKA PANHANDLE. SNOW WILL PERSIST THROUGH SATURDAY
BEFORE ENDING FROM WEST TO EAST SATURDAY NIGHT.

WYZ110-115>117-120000-
/O.UPG.KCYS.WS.A.0011.151212T0300Z-151213T0000Z/
/O.EXB.KCYS.WS.W.0013.151211T2100Z-151213T0000Z/
NORTH SNOWY RANGE FOOTHILLS-LARAMIE VALLEY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN...LARAMIE...
VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN...
WHITAKER
408 AM MST FRI DEC 11 2015

...WINTER STORM WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO
5 PM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 5 PM MST SATURDAY. THE WINTER STORM WATCH IS NO
LONGER IN EFFECT.

* TIMING...SNOW WILL DEVELOP THIS AFTERNOON AND CONTINUE THROUGH
  SATURDAY AFTERNOON. THE SNOW WILL BE HEAVY AT TIMES.

* TOTAL SNOW ACCUMULATIONS...5 TO 10 INCHES.

* WINDS/VISIBILITY...EAST TO SOUTHEAST WINDS 10 TO 20 MPH WITH
  GUSTS TO 25 MPH WILL CREATE AREAS OF DRIFTING SNOW. VISIBILITIES
  COULD BE REDUCED TO LESS THAN A HALF MILE AT TIMES ALONG
  INTERSTATE 80 BETWEEN CHEYENNE AND ARLINGTON.

* IMPACTS...MAINLY TO TRAVEL. TRAVEL ALONG INTERSTATE 80 BETWEEN
  CHEYENNE AND ARLINGTON WILL BE IMPACTED WITH SLICK AND SNOW
  COVERED ROADS AS WELL AS SIGNIFICANTLY REDUCED 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.

&&

$$

WYZ112-114-120000-
/O.EXT.KCYS.WS.W.0013.000000T0000Z-151213T0000Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
408 AM MST FRI DEC 11 2015

...WINTER STORM WARNING NOW IN EFFECT UNTIL 5 PM MST SATURDAY...

* TIMING...SNOW WILL DEVELOP THIS MORNING AND CONTINUE THROUGH
  SATURDAY AFTERNOON. THE SNOW WILL BE HEAVY AT TIMES.

* TOTAL SNOW ACCUMULATIONS...10 TO 16 INCHES WITH HIGHER AMOUNTS
  ON EAST AND NORTHEAST FACING SLOPES.

* WINDS/VISIBILITY...WEST WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH
  TODAY WILL CREATE AREAS OF BLOWING SNOW WITH VISIBILITIES UNDER
  A QUARTER MILE AT TIMES. WINDS WILL BECOME EAST TO NORTHEAST 10
  TO 20 MPH SATURDAY.

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS
  AND SIGNIFICANTLY REDUCED 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.

&&

$$

WYZ105-106-109-113-120000-
/O.NEW.KCYS.WW.Y.0024.151211T2100Z-151213T0000Z/
SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
CENTRAL CARBON COUNTY-UPPER NORTH PLATTE RIVER BASIN-
INCLUDING THE CITIES OF...MEDICINE BOW...BORDEAUX...RAWLINS...
SINCLAIR...HANNA...SARATOGA...ENCAMPMENT...RIVERSIDE
408 AM MST FRI DEC 11 2015

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
5 PM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 5 PM MST SATURDAY.

* TIMING...SNOW WILL DEVELOP THIS AFTERNOON AND CONTINUE THROUGH
  SATURDAY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...3 TO 6 INCHES.

* WINDS/VISIBILITY...NORTHWEST WINDS 10 TO 20 MPH TODAY AND
  TONIGHT...BECOMING NORTHEAST SATURDAY. VISIBILITIES WILL BE
  REDUCED TO A MILE OR LESS AT TIMES IN FALLING SNOW.

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS
  AND REDUCED VISIBILITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

WYZ107-108-118-119-120000-
/O.NEW.KCYS.WW.Y.0024.151212T0100Z-151213T0000Z/
EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL LARAMIE COUNTY-
EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...GLENDO...WHEATLAND...CHUGWATER...
GUERNSEY...TORRINGTON...CHEYENNE...BURNS...CARPENTER...ALBIN...
PINE BLUFFS
408 AM MST FRI DEC 11 2015

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
5 PM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 6 PM THIS
EVENING TO 5 PM MST SATURDAY.

* TIMING...RAIN WILL CHANGE TO SNOW EARLY THIS EVENING AND
  CONTINUE THROUGH SATURDAY AFTERNOON.

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

* WINDS/VISIBILITY...NORTHWEST WINDS 10 TO 20 MPH TODAY AND
  TONIGHT...BECOMING NORTHEAST SATURDAY. VISIBILITIES WILL BE
  REDUCED TO A MILE OR LESS AT TIMES IN FALLING SNOW.

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS
  AND REDUCED VISIBILITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

NEZ003-019>021-054-055-096-120000-
/O.NEW.KCYS.WW.Y.0024.151212T0600Z-151213T0600Z/
BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
SOUTH SIOUX-
INCLUDING THE CITIES OF...ALLIANCE...SCOTTSBLUFF...GERING...
HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...AGATE
408 AM MST FRI DEC 11 2015

...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO
11 PM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 11 PM THIS
EVENING TO 11 PM MST SATURDAY.

* TIMING...RAIN WILL CHANGE TO SNOW THIS EVENING AND CONTINUE
  THROUGH SATURDAY EVENING.

* TOTAL SNOW ACCUMULATIONS...2 TO 4 INCHES.

* WINDS/VISIBILITY...SOUTHEAST WINDS 10 MPH TONIGHT BECOMING
  NORTHEAST 10 TO 15 MPH SATURDAY. VISIBILITIES WILL BE REDUCED
  TO A MILE OR LESS AT TIMES IN FALLING SNOW.

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS
  AND REDUCED VISIBILITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$
854 
WWUS45 KCYS 112117
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
217 PM MST FRI DEC 11 2015

...WIDESPREAD ACCUMULATING SNOW RETURNING TO SOUTHEAST WYOMING
AND WESTERN NEBRASKA PANHANDLE DURING THE NEXT 24 TO 36 HOURS...

.A LARGE PACIFIC LOW PRESSURE SYSTEM WILL MOVE EAST FROM THE
INTERMOUNTAIN WEST ACROSS THE ROCKIES TODAY THROUGH SUNDAY
MORNING. SNOW WILL BEGIN TO FALL OVER MUCH OF CARBON COUNTY THIS
AFTERNOON AND GRADUALLY SPREAD EAST THIS EVENING. ENERGY AND
ABUNDANT PACIFIC MOISTURE WILL MOVE NORTHEAST TONIGHT AND SATURDAY
WITH WIDESPREAD ACCUMULATING SNOW ACROSS MUCH OF SOUTHEAST WYOMING
AND THE WESTERN NEBRASKA PANHANDLE. SNOW WILL PERSIST THROUGH
SATURDAY BEFORE ENDING FROM WEST TO EAST SUNDAY MORNING.

WYZ112-114-121200-
/O.CON.KCYS.WS.W.0013.000000T0000Z-151213T0000Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
217 PM MST FRI DEC 11 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST
SATURDAY...

* TIMING...SNOW WILL DEVELOP THIS AFTERNOON AND CONTINUE THROUGH
  SATURDAY AFTERNOON. THE SNOW WILL BE HEAVY AT TIMES.

* TOTAL SNOW ACCUMULATIONS...10 TO 16 INCHES WITH HIGHER AMOUNTS 
  ON EAST AND NORTHEAST FACING SLOPES. 

* WINDS/VISIBILITY...WEST WINDS 15 TO 20 MPH WITH GUSTS TO 30 MPH
  THIS AFTERNOON CREATE AREAS OF BLOWING SNOW WITH VISIBILITIES
  UNDER A QUARTER MILE AT TIMES. WINDS WILL BECOME EAST TO
  NORTHEAST 10 TO 20 MPH SATURDAY.

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS 
  AND SIGNIFICANTLY REDUCED 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.

&&

$$

WYZ110-115>117-121200-
/O.CON.KCYS.WS.W.0013.000000T0000Z-151213T0000Z/
NORTH SNOWY RANGE FOOTHILLS-LARAMIE VALLEY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN...LARAMIE...
VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN...
WHITAKER
217 PM MST FRI DEC 11 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST
SATURDAY...

* TIMING...SNOW WILL DEVELOP THIS EVENING AND CONTINUE THROUGH
  SATURDAY AFTERNOON. THE SNOW WILL BE HEAVY AT TIMES.

* TOTAL SNOW ACCUMULATIONS...5 TO 10 INCHES.

* WINDS/VISIBILITY...EAST TO SOUTHEAST WINDS 10 TO 20 MPH WITH 
  GUSTS TO 25 MPH WILL CREATE AREAS OF DRIFTING SNOW. 
  VISIBILITIES COULD BE REDUCED TO LESS THAN A HALF MILE AT 
  TIMES ALONG INTERSTATE 80 BETWEEN CHEYENNE AND ARLINGTON. 

* IMPACTS...MAINLY TO TRAVEL. TRAVEL ALONG INTERSTATE 80 BETWEEN 
  CHEYENNE AND ARLINGTON WILL BE IMPACTED WITH SLICK AND SNOW 
  COVERED ROADS AS WELL AS SIGNIFICANTLY REDUCED 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.

&&

$$

NEZ002-095-121200-
/O.EXB.KCYS.WW.Y.0024.151212T1200Z-151213T0600Z/
DAWES-NORTH SIOUX-
INCLUDING THE CITIES OF...CHADRON...HARRISON
217 PM MST FRI DEC 11 2015

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM TO 11 PM MST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 5 AM TO 11 PM
MST SATURDAY.

* TIMING...RAIN WILL CHANGE TO SNOW THIS EVENING AND CONTINUE 
  THROUGH SATURDAY EVENING. 

* TOTAL SNOW ACCUMULATIONS...3 TO 5 INCHES. SOME GUIDANCE IS
  SUGGESTING HIGHER AMOUNTS COULD OCCUR IN BANDED SNOW. SHOULD
  THESE BANDS MATERIALIZE...WE COULD BE LOOKING AT SUBSTANTIALLY
  HIGHER SNOW AMOUNTS.

* WINDS/VISIBILITY...SOUTHEAST WINDS 10 MPH TONIGHT BECOMING 
  NORTHEAST 10 TO 15 MPH SATURDAY. VISIBILITIES WILL BE REDUCED 
  TO A MILE OR LESS AT TIMES IN FALLING SNOW. 

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS 
  AND REDUCED VISIBILITIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

NEZ003-019>021-054-055-096-121200-
/O.EXT.KCYS.WW.Y.0024.151212T1200Z-151213T0600Z/
BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
SOUTH SIOUX-
INCLUDING THE CITIES OF...ALLIANCE...SCOTTSBLUFF...GERING...
HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...AGATE
217 PM MST FRI DEC 11 2015

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 5 AM TO 11 PM MST
SATURDAY...

* TIMING...RAIN WILL CHANGE TO SNOW THIS EVENING AND CONTINUE 
  THROUGH SATURDAY EVENING. 

* TOTAL SNOW ACCUMULATIONS...3 TO 5 INCHES. SOME GUIDANCE IS
  SUGGESTING HIGHER AMOUNTS COULD OCCUR IN BANDED SNOW. SHOULD
  THESE BANDS MATERIALIZE...WE COULD BE LOOKING AT SUBSTANTIALLY
  HIGHER SNOW AMOUNTS.

* WINDS/VISIBILITY...SOUTHEAST WINDS 10 MPH TONIGHT BECOMING 
  NORTHEAST 10 TO 15 MPH SATURDAY. VISIBILITIES WILL BE REDUCED 
  TO A MILE OR LESS AT TIMES IN FALLING SNOW. 

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS 
  AND REDUCED VISIBILITIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

WYZ105-106-109-113-121200-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-151213T0000Z/
SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
CENTRAL CARBON COUNTY-UPPER NORTH PLATTE RIVER BASIN-
INCLUDING THE CITIES OF...MEDICINE BOW...BORDEAUX...RAWLINS...
SINCLAIR...HANNA...SARATOGA...ENCAMPMENT...RIVERSIDE
217 PM MST FRI DEC 11 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST
SATURDAY...

* TIMING...SNOW WILL DEVELOP THIS AFTERNOON AND CONTINUE THROUGH 
  SATURDAY AFTERNOON. 

* TOTAL SNOW ACCUMULATIONS...3 TO 6 INCHES.

* WINDS/VISIBILITY...NORTHWEST WINDS 10 TO 20 MPH TODAY AND 
  TONIGHT...BECOMING NORTHEAST SATURDAY. VISIBILITIES WILL BE 
  REDUCED TO A MILE OR LESS AT TIMES IN FALLING SNOW. 

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS 
  AND REDUCED VISIBILITIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

WYZ107-108-118-119-121200-
/O.CON.KCYS.WW.Y.0024.151212T0100Z-151213T0000Z/
EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL LARAMIE COUNTY-
EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...GLENDO...WHEATLAND...CHUGWATER...
GUERNSEY...TORRINGTON...CHEYENNE...BURNS...CARPENTER...ALBIN...
PINE BLUFFS
217 PM MST FRI DEC 11 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO 5 PM MST SATURDAY...

* TIMING...RAIN WILL CHANGE TO SNOW EARLY THIS EVENING AND 
  CONTINUE THROUGH SATURDAY AFTERNOON. 

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

* WINDS/VISIBILITY...NORTHWEST WINDS 10 TO 20 MPH TODAY AND 
  TONIGHT...BECOMING NORTHEAST SATURDAY. VISIBILITIES WILL BE 
  REDUCED TO A MILE OR LESS AT TIMES IN FALLING SNOW. 

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS 
  AND REDUCED VISIBILITIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$
166 
WWUS45 KCYS 120400
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
900 PM MST FRI DEC 11 2015

...WIDESPREAD ACCUMULATING SNOW FOR SOUTHEAST WYOMING AND WESTERN
NEBRASKA PANHANDLE THROUGH SATURDAY...

.A LARGE PACIFIC LOW PRESSURE SYSTEM WILL MOVE EAST FROM THE
INTERMOUNTAIN WEST ACROSS THE ROCKIES THROUGH SUNDAY MORNING.
WIDESPREAD ACCUMULATING SNOW IS EXPECTED FOR MUCH OF SOUTHEAST
WYOMING AND THE WESTERN NEBRASKA PANHANDLE FROM THIS SYSTEM. FOR
TONIGHT...SNOW WILL CONTINUE FOR MANY LOCATIONS ALONG AND EAST OF
INTERSTATE 25. SNOW WILL THEN SPREAD TO THE EAST ACROSS THE
WYOMING AND NEBRASKA PLAINS EARLY SATURDAY MORNING AS ENERGY AND
ABUNDANT PACIFIC MOISTURE MOVE NORTHEAST TONIGHT THROUGH SATURDAY.
SNOW WILL PERSIST THROUGH SATURDAY EVENING BEFORE ENDING FROM WEST
TO EAST BY SUNDAY MORNING.

GUSTY WINDS MAY DEVELOP IN THE WIND PRONE AREAS ALONG AND WEST OF
THE LARAMIE RANGE EARLY SUNDAY MORNING...AND COULD PRODUCE AREAS
OF BLOWING AND DRIFTING OF SNOW SUNDAY MORNING.

WYZ112-114-121300-
/O.CON.KCYS.WS.W.0013.000000T0000Z-151213T0000Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
900 PM MST FRI DEC 11 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST
SATURDAY...

* TIMING...SNOW WILL CONTINUE THROUGH SATURDAY AFTERNOON. THE
  SNOW WILL BE HEAVY AT TIMES.

* TOTAL SNOW ACCUMULATIONS...10 TO 16 INCHES WITH HIGHER AMOUNTS 
  ON EAST AND NORTHEAST FACING SLOPES. 

* WINDS/VISIBILITY...EAST TO NORTHEAST 10 TO 20 MPH THROUGH
  SATURDAY. VISIBILITY COULD BE REDUCED TO LESS THAN ONE HALF MILE
  AT TIMES. 

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS 
  AND SIGNIFICANTLY REDUCED 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.

&&

$$

WYZ110-115>117-121300-
/O.CON.KCYS.WS.W.0013.000000T0000Z-151213T0000Z/
NORTH SNOWY RANGE FOOTHILLS-LARAMIE VALLEY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN...LARAMIE...
VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN...
WHITAKER
900 PM MST FRI DEC 11 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST
SATURDAY...

* TIMING...SNOW CONTINUE THROUGH SATURDAY AFTERNOON. THE SNOW
  WILL BE HEAVY AT TIMES.

* TOTAL SNOW ACCUMULATIONS...5 TO 10 INCHES.

* WINDS/VISIBILITY...EAST TO SOUTHEAST WINDS 10 TO 20 MPH WITH 
  GUSTS TO 25 MPH WILL CREATE AREAS OF DRIFTING SNOW. 
  VISIBILITIES COULD BE REDUCED TO LESS THAN A HALF MILE AT 
  TIMES ALONG INTERSTATE 80 BETWEEN CHEYENNE AND ARLINGTON. 

* IMPACTS...MAINLY TO TRAVEL. TRAVEL ALONG INTERSTATE 80 BETWEEN 
  CHEYENNE AND ARLINGTON WILL BE IMPACTED WITH SLICK AND SNOW 
  COVERED ROADS AS WELL AS SIGNIFICANTLY REDUCED 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.

&&

$$

WYZ105-106-109-113-121300-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-151213T0000Z/
SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
CENTRAL CARBON COUNTY-UPPER NORTH PLATTE RIVER BASIN-
INCLUDING THE CITIES OF...MEDICINE BOW...BORDEAUX...RAWLINS...
SINCLAIR...HANNA...SARATOGA...ENCAMPMENT...RIVERSIDE
900 PM MST FRI DEC 11 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST
SATURDAY...

* TIMING...SNOW WILL CONTINUE THROUGH SATURDAY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...3 TO 6 INCHES.

* WINDS/VISIBILITY...NORTH TO NORTHEAST WINDS 10 TO 15 MPH THROUGH
  SATURDAY. VISIBILITIES WILL BE REDUCED TO A MILE OR LESS AT
  TIMES IN FALLING SNOW.

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS 
  AND REDUCED VISIBILITIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

WYZ107-108-118-119-121300-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-151213T0000Z/
EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL LARAMIE COUNTY-
EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...GLENDO...WHEATLAND...CHUGWATER...
GUERNSEY...TORRINGTON...CHEYENNE...BURNS...CARPENTER...ALBIN...
PINE BLUFFS
900 PM MST FRI DEC 11 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST
SATURDAY...

* TIMING...SNOW WILL DEVELOP LATE TONIGHT AND WILL CONTINUE
  THROUGH EARLY SATURDAY EVENING.

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

* WINDS/VISIBILITY...NORTHWEST WINDS 5 TO 10 MPH THIS
  EVENING...BECOMING EAST TO SOUTHEAST OVERNIGHT. VISIBILITIES
  WILL BE REDUCED TO A MILE OR LESS AT TIMES IN FALLING SNOW.

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS 
  AND REDUCED VISIBILITIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

NEZ002-003-019>021-054-055-095-096-121300-
/O.CON.KCYS.WW.Y.0024.151212T1200Z-151213T0600Z/
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF...
GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...
HARRISON...AGATE
900 PM MST FRI DEC 11 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 11 PM
MST SATURDAY...

* TIMING...SNOW WILL DEVELOP SATURDAY MORNING AND WILL CONTINUE
  THROUGH SATURDAY EVENING.

* TOTAL SNOW ACCUMULATIONS...3 TO 5 INCHES. SOME GUIDANCE IS 
  SUGGESTING HIGHER AMOUNTS COULD OCCUR IN BANDED SNOW. SHOULD 
  THESE BANDS MATERIALIZE...WE COULD BE LOOKING AT SUBSTANTIALLY 
  HIGHER SNOW AMOUNTS. 

* WINDS/VISIBILITY...SOUTHEAST WINDS 10 MPH TONIGHT BECOMING 
  NORTHEAST 10 TO 15 MPH SATURDAY. VISIBILITIES WILL BE REDUCED 
  TO A MILE OR LESS AT TIMES IN FALLING SNOW. 

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS 
  AND REDUCED VISIBILITIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$
849 
WWUS45 KCYS 121023
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
323 AM MST SAT DEC 12 2015

...WIDESPREAD ACCUMULATING SNOW FOR SOUTHEAST WYOMING AND WESTERN
NEBRASKA PANHANDLE THROUGH SATURDAY...

.A LARGE PACIFIC LOW PRESSURE SYSTEM WILL MOVE EAST FROM THE
INTERMOUNTAIN WEST ACROSS THE ROCKIES THROUGH SUNDAY MORNING.
WIDESPREAD ACCUMULATING SNOW IS EXPECTED FOR MUCH OF SOUTHEAST
WYOMING AND THE WESTERN NEBRASKA PANHANDLE FROM THIS SYSTEM. FOR
TODAY...LIGHT SNOW WILL SPREAD OVER MANY AREAS THIS MORNING AND
CONTINUE THIS AFTERNOON. THE SNOW IS EXPECTED TO TAPER OFF FROM
WEST TO EAST LATE THIS AFTERNOON THROUGH THIS EVENING.

GUSTY WINDS MAY DEVELOP IN THE WIND PRONE AREAS ALONG AND WEST OF
THE LARAMIE RANGE SUNDAY MORNING...AND COULD PRODUCE AREAS OF
BLOWING AND DRIFTING OF SNOW SUNDAY.

WYZ112-114-130000-
/O.CON.KCYS.WS.W.0013.000000T0000Z-151213T0000Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
323 AM MST SAT DEC 12 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* TIMING...SNOW WILL CONTINUE THROUGH THIS AFTERNOON. THE SNOW MAY
  BE HEAVY AT TIMES.

* TOTAL SNOW ACCUMULATIONS...8 TO 12 INCHES WITH HIGHER AMOUNTS
  ON EAST AND NORTHEAST FACING SLOPES.

* WINDS/VISIBILITY...EAST TO NORTHEAST 10 TO 20 MPH. VISIBILITY
  COULD BE REDUCED TO LESS THAN ONE HALF MILE AT TIMES.

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS 
  AND SIGNIFICANTLY REDUCED 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.

&&

$$

WYZ110-115>117-130000-
/O.CON.KCYS.WS.W.0013.000000T0000Z-151213T0000Z/
NORTH SNOWY RANGE FOOTHILLS-LARAMIE VALLEY-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN...LARAMIE...
VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN...
WHITAKER
323 AM MST SAT DEC 12 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* TIMING...THROUGH THIS AFTERNOON. THE SNOW MAY BE HEAVY AT
  TIMES.

* TOTAL SNOW ACCUMULATIONS...4 TO 8 INCHES.

* WINDS/VISIBILITY...EAST TO SOUTHEAST WINDS 10 TO 20 MPH WITH
  GUSTS TO 25 MPH MAY CREATE AREAS OF DRIFTING SNOW. VISIBILITIES
  COULD BE REDUCED TO LESS THAN A HALF MILE AT TIMES ALONG
  INTERSTATE 80 BETWEEN CHEYENNE AND ARLINGTON.

* IMPACTS...MAINLY TO TRAVEL. TRAVEL ALONG INTERSTATE 80 BETWEEN 
  CHEYENNE AND ARLINGTON WILL BE IMPACTED WITH SLICK AND SNOW 
  COVERED ROADS AS WELL AS SIGNIFICANTLY REDUCED 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.

&&

$$

WYZ105-106-109-113-130000-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-151213T0000Z/
SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
CENTRAL CARBON COUNTY-UPPER NORTH PLATTE RIVER BASIN-
INCLUDING THE CITIES OF...MEDICINE BOW...BORDEAUX...RAWLINS...
SINCLAIR...HANNA...SARATOGA...ENCAMPMENT...RIVERSIDE
323 AM MST SAT DEC 12 2015

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

* TIMING...THROUGH THIS AFTERNOON.

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

* WINDS/VISIBILITY...NORTH TO NORTHEAST WINDS 10 TO 15 MPH.
  VISIBILITIES WILL BE REDUCED TO A MILE OR LESS AT TIMES IN
  FALLING SNOW.

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS 
  AND REDUCED VISIBILITIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

WYZ107-108-118-119-130000-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-151213T0000Z/
EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL LARAMIE COUNTY-
EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...GLENDO...WHEATLAND...CHUGWATER...
GUERNSEY...TORRINGTON...CHEYENNE...BURNS...CARPENTER...ALBIN...
PINE BLUFFS
323 AM MST SAT DEC 12 2015

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

* TIMING...SNOW WILL DEVELOP THIS MORNING AND WILL CONTINUE
  THROUGH EARLY THIS EVENING EVENING.

* TOTAL SNOW ACCUMULATIONS...2 TO 4 INCHES.

* WINDS/VISIBILITY...EAST TO SOUTHEAST 5 TO 10 MPH. VISIBILITIES
  WILL BE REDUCED TO A MILE OR LESS AT TIMES IN FALLING SNOW.

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS 
  AND REDUCED VISIBILITIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

NEZ002-003-019>021-054-055-095-096-130000-
/O.CON.KCYS.WW.Y.0024.151212T1200Z-151213T0600Z/
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF...
GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...
HARRISON...AGATE
323 AM MST SAT DEC 12 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* TIMING...SNOW WILL DEVELOP THIS MORNING AND WILL CONTINUE
  THROUGH THIS EVENING.

* TOTAL SNOW ACCUMULATIONS...2 TO 5 INCHES. LOCALLY HIGHER AMOUNTS
  POSSIBLE.

* WINDS/VISIBILITY...NORTHEAST WINDS 5 TO 15 MPH. VISIBILITIES
  WILL BE REDUCED TO A MILE OR LESS AT TIMES IN FALLING SNOW.

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS 
  AND REDUCED VISIBILITIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$
013 
WWUS45 KCYS 121725
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1025 AM MST SAT DEC 12 2015

...WIDESPREAD ACCUMULATING SNOW SHIFTING EAST LATE THIS MORNING
INTO THE AFTERNOON...

.SNOW HAS BEGUN TO REALLY TAPER OFF WEST OF THE LARAMIE RANGE LATE
THIS MORNING. LOW PRESSURE OVER NORTHERN NEW MEXICO WILL CONTINUE
TO LIFT OFF TO THE EAST NORTHEAST WITH SNOW CONTINUING TO TAPER
OFF OUT WEST. THEREFORE...THE WINTER STORM WARNINGS AND ADVISORIES
FOR AREAS WEST OF THE LARAMIE RANGE HAVE BEEN CANCELLED EARLY.

WYZ110-112-114-115-121830-
/O.CAN.KCYS.WS.W.0013.000000T0000Z-151213T0000Z/
NORTH SNOWY RANGE FOOTHILLS-SIERRA MADRE RANGE-SNOWY RANGE-
LARAMIE VALLEY-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN...CENTENNIAL...
ALBANY...WOODS LANDING...LARAMIE
1025 AM MST SAT DEC 12 2015

...WINTER STORM WARNING IS CANCELLED...

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

ENERGY THAT BROUGHT THE SNOW TO AREAS WEST OF THE LARAMIE RANGE
LATE LAST NIGHT HAS SHIFTED EASTWARD THIS MORNING. THE MORE
WIDESPREAD MODERATE SNOW HAS SHIFTED EAST OF THE LARAMIE RANGE
LATE THIS MORNING. LIGHT SNOW WILL CONTINUE TO FALL...BUT HEAVIER
SNOW IS NO LONGER EXPECTED. THEREFORE...THE WINTER STORM WARNINGS
HAVE BEEN CANCELLED.

$$

WYZ105-106-109-113-121830-
/O.CAN.KCYS.WW.Y.0024.000000T0000Z-151213T0000Z/
SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
CENTRAL CARBON COUNTY-UPPER NORTH PLATTE RIVER BASIN-
INCLUDING THE CITIES OF...MEDICINE BOW...BORDEAUX...RAWLINS...
SINCLAIR...HANNA...SARATOGA...ENCAMPMENT...RIVERSIDE
1025 AM MST SAT DEC 12 2015

...WINTER WEATHER ADVISORY IS CANCELLED...

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

ENERGY THAT BROUGHT THE SNOW TO AREAS WEST OF THE LARAMIE RANGE
LATE LAST NIGHT HAS SHIFTED EASTWARD THIS MORNING. THE MORE
WIDESPREAD MODERATE SNOW HAS SHIFTED EAST OF THE LARAMIE RANGE
LATE THIS MORNING. LIGHT SNOW WILL CONTINUE TO FALL...BUT HEAVIER
SNOW IS NO LONGER EXPECTED. THEREFORE...THE WINTER WEATHER
ADVISORIES HAVE BEEN CANCELLED.

$$

WYZ116-117-130000-
/O.CON.KCYS.WS.W.0013.000000T0000Z-151213T0000Z/
SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...VEDAUWOO...BUFORD...PUMPKIN VINE...
HORSE CREEK...HARRIMAN...WHITAKER
1025 AM MST SAT DEC 12 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* TIMING...THROUGH THIS AFTERNOON. THE SNOW MAY BE HEAVY AT 
  TIMES. 

* TOTAL SNOW ACCUMULATIONS...4 TO 8 INCHES.

* WINDS/VISIBILITY...EAST TO SOUTHEAST WINDS 10 TO 20 MPH WITH 
  GUSTS TO 25 MPH MAY CREATE AREAS OF DRIFTING SNOW. 
  VISIBILITIES COULD BE REDUCED TO LESS THAN A HALF MILE AT 
  TIMES ALONG INTERSTATE 80 BETWEEN CHEYENNE AND ARLINGTON. 

* IMPACTS...MAINLY TO TRAVEL. TRAVEL ALONG INTERSTATE 80 BETWEEN 
  CHEYENNE AND ARLINGTON WILL BE IMPACTED WITH SLICK AND SNOW 
  COVERED ROADS AS WELL AS SIGNIFICANTLY REDUCED 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.

&&

$$

WYZ107-108-118-119-130000-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-151213T0000Z/
EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL LARAMIE COUNTY-
EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...GLENDO...WHEATLAND...CHUGWATER...
GUERNSEY...TORRINGTON...CHEYENNE...BURNS...CARPENTER...ALBIN...
PINE BLUFFS
1025 AM MST SAT DEC 12 2015

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

* TIMING...SNOW WILL DEVELOP THIS MORNING AND WILL CONTINUE 
  THROUGH EARLY THIS EVENING EVENING. 

* TOTAL SNOW ACCUMULATIONS...2 TO 4 INCHES.

* WINDS/VISIBILITY...EAST TO SOUTHEAST 5 TO 10 MPH. VISIBILITIES 
  WILL BE REDUCED TO A MILE OR LESS AT TIMES IN FALLING SNOW. 

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS 
  AND REDUCED VISIBILITIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

NEZ002-003-019>021-054-055-095-096-130130-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-151213T0600Z/
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF...
GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...
HARRISON...AGATE
1025 AM MST SAT DEC 12 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* TIMING...SNOW WILL DEVELOP THIS MORNING AND WILL CONTINUE 
  THROUGH THIS EVENING. 

* TOTAL SNOW ACCUMULATIONS...2 TO 5 INCHES. LOCALLY HIGHER 
  AMOUNTS POSSIBLE. 

* WINDS/VISIBILITY...NORTHEAST WINDS 5 TO 15 MPH. VISIBILITIES 
  WILL BE REDUCED TO A MILE OR LESS AT TIMES IN FALLING SNOW. 

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS 
  AND REDUCED VISIBILITIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$
533 
WWUS45 KCYS 122029
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
129 PM MST SAT DEC 12 2015

...WIDESPREAD ACCUMULATING SNOW SHIFTING EAST LATE THIS AFTERNOON...

.LATEST RADAR IMAGERY SHOWING THE BANDED SNOW THAT BROUGHT MODERATE
SNOW ACCUMULATIONS TO LARAMIE COUNTY IS BEGINNING TO SHIFT EAST
AND NORTHEAST INTO THE NEBRASKA PANHANDLE. LATEST WYDOT WEBCAMS
SHOWING THE INTERSTATE 80 SUMMIT LOOKING PRETTY GOOD THIS
AFTERNOON. DECIDED TO CANCEL THE WINTER STORM WARNING FOR THE
SOUTH LARAMIE RANGE EARLY AS SIGNIFICANT SNOW IS NO LONGER
EXPECTED.

WYZ116-117-122130-
/O.CAN.KCYS.WS.W.0013.000000T0000Z-151213T0000Z/
SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...VEDAUWOO...BUFORD...PUMPKIN VINE...
HORSE CREEK...HARRIMAN...WHITAKER
129 PM MST SAT DEC 12 2015

...WINTER STORM WARNING IS CANCELLED...

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

LATEST RADAR IMAGERY SHOWING THE BANDED SNOW THAT BROUGHT MODERATE
SNOW ACCUMULATIONS TO LARAMIE COUNTY IS BEGINNING TO SHIFT EAST
AND NORTHEAST INTO THE NEBRASKA PANHANDLE. LATEST WYDOT WEBCAMS
SHOWING THE INTERSTATE 80 SUMMIT LOOKING PRETTY GOOD THIS
AFTERNOON. DECIDED TO CANCEL THE WINTER STORM WARNING FOR THE
SOUTH LARAMIE RANGE EARLY AS SIGNIFICANT SNOW IS NO LONGER
EXPECTED.

$$

WYZ107-108-118-119-130000-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-151213T0000Z/
EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL LARAMIE COUNTY-
EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...GLENDO...WHEATLAND...CHUGWATER...
GUERNSEY...TORRINGTON...CHEYENNE...BURNS...CARPENTER...ALBIN...
PINE BLUFFS
129 PM MST SAT DEC 12 2015

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

* TIMING...SNOW WILL DEVELOP THIS MORNING AND WILL CONTINUE 
  THROUGH EARLY THIS EVENING EVENING. 

* TOTAL SNOW ACCUMULATIONS...2 TO 4 INCHES.

* WINDS/VISIBILITY...EAST TO SOUTHEAST 5 TO 10 MPH. VISIBILITIES 
  WILL BE REDUCED TO A MILE OR LESS AT TIMES IN FALLING SNOW. 

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS 
  AND REDUCED VISIBILITIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

NEZ002-003-019>021-054-055-095-096-130430-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-151213T0600Z/
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF...
GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...
HARRISON...AGATE
129 PM MST SAT DEC 12 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* TIMING...SNOW WILL DEVELOP THIS AFTERNOON AND WILL CONTINUE
  THROUGH THIS EVENING.

* TOTAL SNOW ACCUMULATIONS...2 TO 5 INCHES. LOCALLY HIGHER 
  AMOUNTS POSSIBLE. 

* WINDS/VISIBILITY...NORTHEAST WINDS 5 TO 15 MPH. VISIBILITIES 
  WILL BE REDUCED TO A MILE OR LESS AT TIMES IN FALLING SNOW. 

* IMPACTS...MAINLY TO TRAVEL DUE TO SLICK AND SNOW COVERED ROADS 
  AND REDUCED VISIBILITIES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 10, 9:02 AM MSTHigh Wind WarningCYSAlbany, Carbon, Laramie, Platte14 hr
Dec 10, 12:29 PM MSTWinter Storm WatchCYSAlbany, Carbon, Laramie16 hr

Nearby

Winter Storm Warnings in Wyoming, 2015Every winter storm warning in 2015

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.