Winter Storm Warning 2, NWS Cheyenne, WY

182 
WWUS45 KCYS 092019
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
119 PM MST THU JAN 9 2014

...SNOW AND STRONG WINDS FOR THE SNOWY AND SIERRA MADRE RANGES OF
SOUTHEAST WYOMING...

.SNOW WILL DEVELOP ACROSS THE SIERRA MADRE AND SNOWY RANGES IN
SOUTHEAST WYOMING THIS AFTERNOON WITH PERIODS OF SNOW CONTINUING 
THROUGH FRIDAY NIGHT. STRONG WEST TO SOUTHWEST WINDS WILL DEVELOP
BY FRIDAY AFTERNOON AND PERSIST THROUGH THE WEEKEND. THE
COMBINATION OF STRONG WINDS AND SNOW MAY LEAD TO WHITEOUT
CONDITIONS AT TIMES...ESPECIALLY FRIDAY AFTERNOON AND NIGHT. WHILE
THE SNOW IS EXPECTED TO TAPER OFF BRIEFLY ON SATURDAY...ANOTHER
PACIFIC STORM SYSTEM WILL BRING MORE SNOW TO THE AREA ON SUNDAY
WITH ADDITIONAL SNOW ACCUMULATIONS LIKELY.

WYZ112-114-101230-
/O.CON.KCYS.WS.W.0002.140109T2100Z-140111T1400Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
119 PM MST THU JAN 9 2014

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM MST
SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM MST SATURDAY.

* TIMING...THURSDAY AFTERNOON THROUGH FRIDAY AFTERNOON.

* TOTAL SNOW ACCUMULATIONS...GENERALLY 10 TO 15 INCHES WITH
  UPWARDS OF 18 INCHES POSSIBLE ON WEST FACING SLOPES.

* WINDS/VISIBILITIES...WEST TO SOUTHWEST WINDS INCREASING TO 40 TO
  50 MPH WITH GUSTS TO 70 MPH BY FRIDAY AFTERNOON. VISIBILITIES
  WILL BE NEAR NEAR ZERO AT TIMES IN FALLING AND BLOWING SNOW.
  STRONG WINDS ARE EXPECTED TO CONTINUE THROUGH THE WEEKEND.

* IMPACTS...MAINLY TO OUTDOOR AND RECREATIONAL INTERESTS IN THE 
  SNOWY AND SIERRA MADRE RANGES. TRAVEL WILL BE SEVERELY 
  IMPACTED IN THE MOUNTAINS AND TRAVEL ALONG HIGHWAY 230 BETWEEN 
  WOODS LANDING AND THE COLORADO STATE LINE MAY BE DIFFICULT. 
  PEOPLE VENTURING INTO THE MOUNTAINS TO RECREATE WILL WANT TO 
  TAKE THE APPROPRIATE PRECAUTIONS TO PREPARE FOR SEVERE WINTER 
  WEATHER CONDITIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AVOID TRAVEL IN THE WARNING AREA. IF YOU ARE PLANNING TO TRAVEL
IN THE WARNING AREA...LISTEN TO THE LATEST WEATHER FORECAST AND
CONSIDER TRAVELING AT ANOTHER TIME OR BY ANOTHER ROUTE. IF YOU
MUST TRAVEL IN THE WARNING AREA...USE EXTREME CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS...TAKE ALONG A
WINTER SURVIVAL KIT. IF YOU BECOME STRANDED IN A RURAL AREA...
STAY WITH YOUR VEHICLE UNTIL HELP ARRIVES. TO KEEP WARM IN YOUR
VEHICLE...RUN YOUR ENGINE 10 MINUTES EACH HOUR...AND MAKE SURE
THE EXHAUST PIPE IS CLEAR OF SNOW TO AVOID CARBON MONOXIDE
POISONING.

&&

$$

TT

162 
WWUS45 KCYS 100329
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
829 PM MST THU JAN 9 2014

...SNOW AND STRONG WINDS FOR THE SNOWY AND SIERRA MADRE RANGES OF
SOUTHEAST WYOMING...

.PERIODS OF SNOW WILL CONTINUE THROUGH FRIDAY NIGHT. STRONG WEST
TO SOUTHWEST WINDS WILL DEVELOP BY FRIDAY AFTERNOON AND PERSIST
THROUGH THE WEEKEND. THE COMBINATION OF STRONG WINDS AND SNOW WILL
PRODUCE WHITEOUT CONDITIONS AT TIMES...ESPECIALLY FRIDAY
AFTERNOON AND FRIDAY NIGHT. WHILE THE SNOW IS EXPECTED TO TAPER
OFF BRIEFLY ON SATURDAY...ANOTHER PACIFIC STORM SYSTEM WILL BRING
MORE SNOW TO THE AREA ON SUNDAY WITH ADDITIONAL SNOW ACCUMULATIONS
LIKELY.

WYZ112-114-101300-
/O.CON.KCYS.WS.W.0002.000000T0000Z-140111T1400Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
829 PM MST THU JAN 9 2014

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM MST
SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM MST SATURDAY.

* TIMING...THROUGH FRIDAY NIGHT.

* TOTAL SNOW ACCUMULATIONS...GENERALLY 10 TO 15 INCHES WITH 
  UPWARDS OF 18 INCHES POSSIBLE ON WEST FACING SLOPES. 

* WINDS/VISIBILITIES...WEST TO SOUTHWEST WINDS INCREASING TO 40 
  TO 50 MPH WITH GUSTS TO 70 MPH BY FRIDAY AFTERNOON. 
  VISIBILITIES WILL BE NEAR NEAR ZERO AT TIMES IN FALLING AND 
  BLOWING SNOW. STRONG WINDS ARE EXPECTED TO CONTINUE THROUGH 
  THE WEEKEND. 

* IMPACTS...MAINLY TO OUTDOOR AND RECREATIONAL INTERESTS IN THE
  SNOWY AND SIERRA MADRE RANGES. TRAVEL WILL BE SEVERELY IMPACTED
  IN THE MOUNTAINS AND TRAVEL ALONG HIGHWAY 230 BETWEEN WOODS
  LANDING AND THE COLORADO STATE LINE MAY BE DIFFICULT. PEOPLE
  VENTURING INTO THE MOUNTAINS WILL WANT TO TAKE THE APPROPRIATE
  PRECAUTIONS TO PREPARE FOR SEVERE WINTER WEATHER CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AVOID TRAVEL IN THE WARNING AREA. IF YOU ARE PLANNING TO TRAVEL
IN THE WARNING AREA...LISTEN TO THE LATEST WEATHER FORECAST AND
CONSIDER TRAVELING AT ANOTHER TIME OR BY ANOTHER ROUTE. IF YOU
MUST TRAVEL IN THE WARNING AREA...USE EXTREME CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS...TAKE ALONG A
WINTER SURVIVAL KIT. IF YOU BECOME STRANDED IN A RURAL AREA...
STAY WITH YOUR VEHICLE UNTIL HELP ARRIVES. TO KEEP WARM IN YOUR
VEHICLE...RUN YOUR ENGINE 10 MINUTES EACH HOUR...AND MAKE SURE
THE EXHAUST PIPE IS CLEAR OF SNOW TO AVOID CARBON MONOXIDE
POISONING.

&&

$$

RUBIN

066 
WWUS45 KCYS 101020
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
320 AM MST FRI JAN 10 2014

...SNOW AND STRONG WINDS WILL CONTINUE IN THE SNOWY AND SIERRA
MADRE RANGES OF SOUTHEAST WYOMING...

.PERIODS OF SNOW WILL CONTINUE INTO SATURDAY MORNING. ACCUMULATING
SNOW WILL BE ACCOMPANIED BY STRONG WEST TO SOUTHWEST WINDS
CREATING NEAR BLIZZARD CONDITIONS AT TIMES. GENERALLY 5 TO 10
INCHES OF SNOW HAD FALLEN THROUGH THURSDAY EVENING WITH SOME OF
THE HIGHEST AMOUNTS OVER THE SIERRA MADRE RANGE. SNOW WILL
REDEVELOP THIS MORNING AND CONTINUE INTO SATURDAY MORNING BEFORE
ENDING. AN ADDITION 8 TO 12 INCHES OF SNOW IS EXPECTED THROUGH
SATURDAY MORNING. ANOTHER PACIFIC STORM SYSTEM WILL BRING MORE
SNOW TO THE AREA ON SUNDAY WITH SEVERAL MORE INCHES OF SNOW
LIKELY.

WYZ112-114-102300-
/O.EXT.KCYS.WS.W.0002.000000T0000Z-140111T1900Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
320 AM MST FRI JAN 10 2014

...WINTER STORM WARNING NOW IN EFFECT UNTIL NOON MST SATURDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL NOON MST
SATURDAY. 

* TIMING...SNOW WILL REDEVELOP THIS MORNING AND CONTINUE THROUGH
  TONIGHT BEFORE ENDING SATURDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...AN ADDITIONAL 8 TO 12 INCHES STORM
  WITH TOTAL ACCUMULATIONS GENERALLY 14 TO 20 INCHES WITH LOCALLY
  HIGHER AMOUNTS. THIS HIGHEST AMOUNTS WILL BE FOUND ALONG
  WESTWARD FACING SLOPES AND OVER THE SIERRA MADRE RANGE.

* WINDS/VISIBILITIES...WEST TO SOUTHWEST WINDS INCREASING TO 40 TO
  50 MPH BY THIS AFTERNOON WITH GUSTS 70 MPH. VISIBILITIES WILL BE
  NEAR NEAR ZERO AT TIMES WITH FALLING AND BLOWING SNOW. STRONG WINDS
  ARE EXPECTED TO CONTINUE THROUGH THE WEEKEND.

* IMPACTS...MAINLY TO OUTDOOR AND RECREATIONAL INTERESTS IN THE
  SNOWY AND SIERRA MADRE RANGES. TRAVEL WILL BE SEVERELY IMPACTED
  TO IMPOSSIBLE IN THE MOUNTAINS AND TRAVEL ALONG HIGHWAY 230
  BETWEEN WOODS LANDING AND THE COLORADO STATE LINE MAY BE
  DIFFICULT. PEOPLE VENTURING INTO THE MOUNTAINS WILL WANT TO TAKE
  THE APPROPRIATE PRECAUTIONS TO PREPARE FOR SEVERE WINTER WEATHER
  CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AVOID TRAVEL IN THE WARNING AREA. IF YOU ARE PLANNING TO TRAVEL
IN THE WARNING AREA...LISTEN TO THE LATEST WEATHER FORECAST AND
CONSIDER TRAVELING AT ANOTHER TIME OR BY ANOTHER ROUTE. IF YOU
MUST TRAVEL IN THE WARNING AREA...USE EXTREME CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS...TAKE ALONG A
WINTER SURVIVAL KIT. IF YOU BECOME STRANDED IN A RURAL AREA...
STAY WITH YOUR VEHICLE UNTIL HELP ARRIVES. TO KEEP WARM IN YOUR
VEHICLE...RUN YOUR ENGINE 10 MINUTES EACH HOUR...AND MAKE SURE
THE EXHAUST PIPE IS CLEAR OF SNOW TO AVOID CARBON MONOXIDE
POISONING.

&&

$$
LIEBL

481 
WWUS45 KCYS 102242
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
342 PM MST FRI JAN 10 2014

...SNOW AND STRONG WINDS WILL CONTINUE IN THE SNOWY AND SIERRA
MADRE RANGES...

.PERIODS OF SNOW WILL CONTINUE INTO SATURDAY MORNING. THIS SNOW
WILL BE ACCOMPANIED BY STRONG WEST TO SOUTHWEST WINDS CREATING
NEAR BLIZZARD CONDITIONS AT TIMES. GENERALLY 10 TO 15 INCHES OF
SNOW HAD FALLEN THROUGH FRIDAY AFTERNOON WITH SOME OF THE HIGHEST
AMOUNTS OVER THE SIERRA MADRE RANGE. SNOW WILL TAPER OFF BY MIDDAY
SATURDAY. ANOTHER PACIFIC STORM SYSTEM WILL BRING MORE SNOW TO
THE AREA ON SUNDAY WITH SEVERAL MORE INCHES OF SNOW LIKELY.

WYZ112-114-111200-
/O.CON.KCYS.WS.W.0002.000000T0000Z-140111T1900Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
342 PM MST FRI JAN 10 2014

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

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

* TIMING...THROUGH NOON SATURDAY. 

* TOTAL SNOW ACCUMULATIONS...TOTAL ACCUMULATIONS GENERALLY 14 TO
  20 INCHES WITH LOCALLY HIGHER AMOUNTS ON WEST FACING SLOPES.

* WINDS/VISIBILITIES...WEST TO SOUTHWEST WINDS WILL GUST UP TO 60
  MPH AT TIMES. VISIBILITIES WILL FALL TO NEAR ZERO IN OPEN AND
  EXPOSED AREAS WITH FALLING AND BLOWING SNOW. STRONG WINDS ARE
  EXPECTED TO CONTINUE THROUGH THE WEEKEND.

* IMPACTS...MAINLY TO OUTDOOR AND RECREATIONAL INTERESTS IN THE 
  SNOWY AND SIERRA MADRE RANGES. TRAVEL WILL BE SEVERELY 
  IMPACTED TO IMPOSSIBLE IN THE MOUNTAINS AND TRAVEL ALONG 
  HIGHWAY 230 BETWEEN WOODS LANDING AND THE COLORADO STATE LINE 
  MAY BECOME DIFFICULT. PEOPLE VENTURING INTO THE MOUNTAINS WILL 
  WANT TO TAKE THE APPROPRIATE PRECAUTIONS TO PREPARE FOR SEVERE 
  WINTER WEATHER CONDITIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AVOID TRAVEL IN THE WARNING AREA. IF YOU ARE PLANNING TO TRAVEL
IN THE WARNING AREA...LISTEN TO THE LATEST WEATHER FORECAST AND
CONSIDER TRAVELING AT ANOTHER TIME OR BY ANOTHER ROUTE. IF YOU
MUST TRAVEL IN THE WARNING AREA...USE EXTREME CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS...TAKE ALONG A
WINTER SURVIVAL KIT. IF YOU BECOME STRANDED IN A RURAL AREA...
STAY WITH YOUR VEHICLE UNTIL HELP ARRIVES. TO KEEP WARM IN YOUR
VEHICLE...RUN YOUR ENGINE 10 MINUTES EACH HOUR...AND MAKE SURE
THE EXHAUST PIPE IS CLEAR OF SNOW TO AVOID CARBON MONOXIDE
POISONING.

&&

$$

HAHN

217 
WWUS45 KCYS 110423
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
923 PM MST FRI JAN 10 2014

...SNOW AND STRONG WINDS WILL CONTINUE IN THE SNOWY AND SIERRA
MADRE RANGES...

.PERIODS OF SNOW WILL CONTINUE INTO SATURDAY MORNING. THIS SNOW
WILL BE ACCOMPANIED BY STRONG WEST TO SOUTHWEST WINDS CREATING
NEAR BLIZZARD CONDITIONS AT TIMES. GENERALLY 10 TO 15 INCHES OF
SNOW HAD FALLEN THROUGH FRIDAY AFTERNOON WITH SOME OF THE HIGHEST
AMOUNTS OVER THE SIERRA MADRE RANGE. SNOW WILL TAPER OFF BY
MIDDAY SATURDAY. ANOTHER PACIFIC STORM SYSTEM WILL BRING MORE
SNOW TO THE AREA ON SUNDAY WITH SEVERAL MORE INCHES OF SNOW
LIKELY.

WYZ112-114-111300-
/O.CON.KCYS.WS.W.0002.000000T0000Z-140111T1900Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
923 PM MST FRI JAN 10 2014

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

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

* TIMING...THROUGH NOON SATURDAY.

* TOTAL SNOW ACCUMULATIONS...TOTAL ACCUMULATIONS 14 TO 20 INCHES
  WITH LOCALLY HIGHER AMOUNTS ON WEST FACING SLOPES.

* WINDS/VISIBILITIES...WEST TO SOUTHWEST WINDS WILL GUST UP TO 
  60 MPH AT TIMES. VISIBILITIES WILL FALL TO NEAR ZERO IN OPEN 
  AND EXPOSED AREAS WITH FALLING AND BLOWING SNOW. STRONG WINDS 
  ARE EXPECTED TO CONTINUE THROUGH THE WEEKEND. 

* IMPACTS...MAINLY TO OUTDOOR AND RECREATIONAL INTERESTS IN THE 
  SNOWY AND SIERRA MADRE RANGES. TRAVEL WILL BE SEVERELY 
  IMPACTED TO IMPOSSIBLE IN THE MOUNTAINS AND TRAVEL ALONG 
  HIGHWAY 230 BETWEEN WOODS LANDING AND THE COLORADO STATE LINE 
  MAY BECOME DIFFICULT. PEOPLE VENTURING INTO THE MOUNTAINS WILL 
  WANT TO TAKE THE APPROPRIATE PRECAUTIONS TO PREPARE FOR SEVERE 
  WINTER WEATHER CONDITIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AVOID TRAVEL IN THE WARNING AREA. IF YOU ARE PLANNING TO TRAVEL
IN THE WARNING AREA...LISTEN TO THE LATEST WEATHER FORECAST AND
CONSIDER TRAVELING AT ANOTHER TIME OR BY ANOTHER ROUTE. IF YOU
MUST TRAVEL IN THE WARNING AREA...USE EXTREME CAUTION WHEN
APPROACHING AND DRIVING OVER RAILROAD CROSSINGS...TAKE ALONG A
WINTER SURVIVAL KIT. IF YOU BECOME STRANDED IN A RURAL AREA...
STAY WITH YOUR VEHICLE UNTIL HELP ARRIVES. TO KEEP WARM IN YOUR
VEHICLE...RUN YOUR ENGINE 10 MINUTES EACH HOUR...AND MAKE SURE
THE EXHAUST PIPE IS CLEAR OF SNOW TO AVOID CARBON MONOXIDE
POISONING.

&&

$$

RUBIN

056 
WWUS45 KCYS 111034
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
334 AM MST SAT JAN 11 2014

...SNOW TO REDEVELOP OVER THE SNOWY AND SIERRA MADRE RANGES
TONIGHT...

.SNOW WILL END ACROSS THE SNOWY AND SIERRA MADRE RANGES THIS
MORNING BUT MORE SNOW IS ON THE WAY. THE NEXT WEATHER DISTURBANCE
WILL IMPACT THE AREA LATE TONIGHT WITH SNOW REDEVELOPING AND 
CONTINUING THROUGH SUNDAY NIGHT. ALONG WITH THE SNOW WILL BE
STRONG WINDS PRODUCING NEAR ZERO VISIBILITIES AT TIMES IN OPEN
AREAS.

WYZ112-114-120000-
/O.CAN.KCYS.WS.W.0002.000000T0000Z-140111T1900Z/
/O.NEW.KCYS.WS.A.0003.140112T0700Z-140113T1900Z/
SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
334 AM MST SAT JAN 11 2014

...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING. THE WINTER STORM WARNING HAS BEEN CANCELLED. 


* TIMING...WHILE ONE ROUND OF SNOW ENDS THIS MORNING...MORE SNOW
  WILL REDEVELOP TONIGHT AND CONTINUE THROUGH SUNDAY NIGHT BEFORE
  TAPERING OFF MONDAY MORNING.

* TOTAL SNOW ACCUMULATIONS...NEW SNOW ACCUMULATIONS 10 TO 15
  INCHES WITH HIGHER AMOUNTS ON WEST FACING SLOPES.

* WINDS/VISIBILITIES...WESTERLY WINDS WILL GUST UP TO 60 MPH AT
  TIMES. VISIBILITIES WILL FALL TO NEAR ZERO IN EXPOSED AREAS DUE
  TO FALLING AND BLOWING SNOW.


* IMPACTS...MAINLY TO OUTDOOR AND RECREATIONAL INTERESTS IN THE
  SNOWY AND SIERRA MADRE RANGES. TRAVEL WILL BE SEVERELY IMPACTED
  TO IMPOSSIBLE IN THE MOUNTAINS AND TRAVEL ALONG HIGHWAY 230
  BETWEEN WOODS LANDING AND THE COLORADO STATE LINE MAY BECOME
  DIFFICULT. PEOPLE VENTURING INTO THE MOUNTAINS WILL WANT TO TAKE
  THE APPROPRIATE PRECAUTIONS TO PREPARE FOR SEVERE WINTER WEATHER
  CONDITIONS.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LIEBL

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHEYENNE WY
1051 PM MST WED JAN 8 2014

.UPDATE...
ISSUED AT 918 PM MST WED JAN 8 2014

GRIDDED FORECASTS HAVE BEEN UPDATED FOR THE REST OF THE NIGHT
BASED ON TRENDS...AS WELL AS DETAILED PERUSAL OF THE 00Z NAM AND
GFS. NEXT NEUTRALLY TILTED SHORTWAVE TROUGH ALOFT MOVES SLOWLY
EASTWARD TO CENTRAL WYOMING BY DAWN. LOW AND MID LEVEL MOISTURE
DECREASE SLOWLY OVER OUR SOUTHWEST MOUNTAINS...THUS EXPECT AREAL
SNOW COVERAGE TO DECREASE AS WELL OVER THE SNOWY AND SIERRA MADRE
RANGES.

LOW LEVEL GRADIENTS INCREASE SLIGHTLY AS WELL PER THE
850/700 MB CRAIG TO CASPER GRADIENTS...AS WELL AS VISUALLY ON THE
SURFACE PROGS...THUS EXPECT WINDS...ESPECIALLY WEST OF INTERSTATE
25...TO STRENGTHEN THE REST OF THE NIGHT...AND WE WILL NEED TO
KEEP A CLOSE EYE ON WINDS AT ARLINGTON ALONG INTERSTATE 80 IN
EASTERN CARBON COUNTY.

TRENDS HAVE SHOWN AREAL FOG COVERAGE DECREASING EAST OF INTERSTATE
25...AS BOUNDARY LAYER WIND AND RELATIVE HUMIDITY PROGS...HAVE
SUGGESTED. HAVE INCLUDED SOME AREAS OF FOG ACROSS NIOBRARA COUNTY
INCLUDING LUSK...THOUGH BELIEVE MUCH OF THIS FOG WILL LIKELY
DISSIPATE AFTER MIDNIGHT AS LOW LEVEL WINDS BECOME WEST.

TEMPERATURES...DEWPOINTS...WINDS AND CLOUD COVER ADJUSTED FOR THE
REST OF TONIGHT.

UPDATE ISSUED AT 659 PM MST WED JAN 8 2014

IN GRIDDED FORECASTS...HAVE EXPANDED ON AREAS OF DENSE FOG FOR
THIS EVENING ACROSS NIOBRARA...PLATTE...GOSHEN...SIOUX...DAWES
AND BOX BUTTE COUNTIES...AS SURFACE OBSERVATIONS NOW SHOW LUSK
WITH DENSE FOG...AND THE 11 MICRON SATELLITE IMAGERY STARTING TO
SHOW DENSE FOG EXPANDING SLIGHTLY IN AREAL COVERAGE.

00Z NAM BOUNDARY LAYER PROGS INDICATE WINDS VEERING TO WEST
SOUTHWEST...AND THEN WEST THE REST OF THE NIGHT...WITH BOUNDARY
LAYER RELATIVE HUMIDITY REMAINING BELOW 70 PERCENT...THUS AM
NOT EXPECTING DENSE FOG TO BECOME TOO WIDESPREAD. THUS...HAVE
INCREASED AREAL COVERAGE OF DENSE FOG IN GRIDDED FORECASTS...AND
WILL CONTINUE TO MONITOR TRENDS FOR A POSSIBLE DENSE FOG ADVISORY
ISSUANCE...THOUGH BASED ON MODEL TRENDS...THIS SCENARIO IS LOOKING
INCREASINGLY LESS LIKELY.

UPDATE ISSUED AT 553 PM MST WED JAN 8 2014

WE JUST RECEIVED A CALL FROM OLD FORT LARAMIE IN WEST CENTRAL
GOSHEN COUNTY WYOMING...REPORTING DENSE FOG...THUS HAVE ADDED
THIS TO THE GRIDS UPON CHECKING OUT THE 11 MICRON SATELLITE IMAGERY
AND WILL ALSO SEND OUT A SPECIAL WEATHER STATEMENT TO ALERT
PEOPLE TRAVELING ALONG HIGHWAY 26 BETWEEN GUERNSEY AND LINGLE.

&&

.SHORT TERM...(THIS EVENING THROUGH FRIDAY NIGHT)
ISSUED AT 300 PM MST WED JAN 8 2014

FORECAST CHALLENGES DEAL WITH SNOW TOTALS IN THE MOUNTAINS AND
ONSET OF A LONG DURATION HIGH WIND EVENT.

CURRENTLY...FAIRLY LIGHT WINDS THIS AFTERNOON ARE BEING OBSERVED
ACROSS THE CWFA. LOW PRESSURE OFF THE COAST OF VANCOUVER WILL BE
OUR NEXT WEATHER PRODUCER.

FORECAST GUIDANCE CONTINUES TO SHOW WINDS INCREASING AS THIS LOW
MOVES INLAND. GFS 700MB WINDS INCREASE TO NEAR 50KTS THURSDAY
AFTERNOON WITH CRAIG TO CASPER 700MB GRADIENT INCREASING TO 50MTRS
THURSDAY EVENING. WENT AHEAD WITH A HIGH WIND WATCH FOR THE WIND
PRONE AREAS AS THEY ALWAYS SEEM TO START A LITTLE EARLIER.

BOTH THE GFS AND ECMWF ARE PAINTING SOME PRETTY SOLID 6 HOURLY QPF
VALUES OUT OVER THE SNOWY AND SIERRA MADRE RANGES TOMORROW NIGHT
THROUGH FRIDAY. GETTING 12-14 INCHES OF SNOW IN MY FORECAST FOR
THEM. THE COMBINATION OF THIS MODERATE SNOW ALONG WITH THE STRONG
WINDS COULD LEAD TO WHITEOUT OR BLIZZARD CONDITIONS FOR THE SNOWY
AN SIERRA MADRE RANGES AS WELL. WINTER STORM WATCHES HAVE BEEN
POSTED FOR THESE AREAS.

GFS 700MB WINDS INCREASE TO 65KTS FRIDAY AFTERNOON AS THE UPPER
LOW MOVES THROUGH THE AREA. A QUICK MOVING SHORTWAVE RIDGE MOVES
THROUGH THE AREA WITH 700MB WINDS REMAINING STRONG INTO SATURDAY.

.LONG TERM...(SATURDAY THROUGH WEDNESDAY)

ISSUED AT 151 PM MST WED JAN 8 2014

MODELS NOW IN GOOD AGREEMENT DURING THE WEEKEND AND INTO EARLY NEXT
WEEK WITH ONLY MINOR DIFFERENCES OBSERVED BETWEEN THE GFS AND ECMWF
ON SUNDAY. THE MAIN FORECAST CONCERN WILL CONTINUE TO BE THE
POTENTIAL FOR VERY STRONG WINDS ACROSS SOUTHEAST WYOMING...WHICH MAY
OCCUR NEARLY EVERY DAY ACROSS PORTIONS OF SOUTHEAST WYOMING WHILE
THE HIGH VALLEYS AND HIGH PLAINS MAY OBSERVE SOME OF THE STRONGEST
WINDS IN YEARS BY SUNDAY. DO NOT EXPECT IT TO BE VERY WINDY ALL
THE TIME WITH GAP WINDS AND MOUNTAIN WAVE ACTIVITY ALSO EXPECTED
IN ADDITION TO A STRONG COLD FRONT. GAP AND MOUNTAIN WAVE INDUCED
WINDS TEND TO HAVE PERIODS OF STRONGER GUSTS FOLLOWED BY A
RELATIVE CALM AT TIMES.

MODELS SHOW ANOTHER PROGRESSIVE UPPER LEVEL TROUGH PUSHING ACROSS
THE PACIFIC NORTHWEST AND INTO THE NORTHERN/CENTRAL ROCKYS BY
SATURDAY NIGHT. SOME LIGHT PRECIPITATION IS POSSIBLE WITH THE
ARRIVAL OF THE COLD FRONT...OTHERWISE A PROLONGED PERIOD OF STRONG
GUSTY WINDS WILL BE THE MAIN THREAT WITH THE POTENTIAL FOR GUSTS
UP TO 70 MPH ACROSS MOST OF SOUTHEAST WYOMING AND GUSTS UP TO 60 MPH
ACROSS WESTERN NEBRASKA. MODELS HAVE TRENDED HIGHER WITH WIND
SPEEDS IN THE LAST FEW RUNS...AND NOW SHOW 700MB WINDS
APPROACHING 75 TO 80 KNOTS BY SATURDAY AND SUNDAY AFTERNOON. ALL
THE INGREDIENTS FOR A SIGNIFICANT STRONG WIND EVENT APPEAR TO BE
PRESENT SATURDAY THROUGH MONDAY...INCLUDING STRONG SUBSIDENCE IN
DOWNSLOPE FLOW...JET ENERGY...AND A STRONG LOW TO MIDLEVEL
PRESSURE GRADIENT. IN FACT...MODELS HAVE TRENDED HIGHER ON THE
STRENGTH OF THE JET STREAM ACROSS WYOMING...ADDING MORE POTENTIAL
FOR STRONG WINDS. KEPT WINDS GENERALLY BETWEEN 25 TO 40 MPH
SUSTAINED ACROSS SOUTHEAST WYOMING SATURDAY THROUGH MONDAY WITH
GUSTS UP TO 65 MPH FOR NOW. AS THIS PROLONGED EVENT GETS
CLOSER...WILL ADD SOME MORE DETAILS AND TIMING SINCE SUSTAINED
WINDS BETWEEN 40 TO 50 MPH AND GUSTS TO AROUND 70 MPH APPEAR
LIKELY AT TIMES IN CERTAIN LOCATIONS. INCREASED WINDS A BIT ON
SUNDAY...BUT NOT AS MUCH AS MODELS AND MOS GUIDANCE SUGGEST SINCE
THE ECMWF IS NOT QUITE THAT AGGRESSIVE YET...ALTHOUGH IT IS
TRENDING TOWARDS THE GFS OVER TIME. AS FOR PRECIPITATION...KEPT
POP AROUND 20 PERCENT OVER THE HIGH VALLEYS AND HIGH PLAINS ON
SUNDAY WITH POP NEAR 80 PERCENT FOR THE MOUNTAINS. THE MOUNTAINS
WILL DO VERY WELL WITH THIS PATTERN WITH SNOW ACCUMULATIONS LIKELY
OVER A FOOT DURING THIS WEEKEND ALONE. TEMPERATURES WILL BE
WARMEST ON SATURDAY AND WILL FALL BY SUNDAY BEHIND THE COLD FRONT.
HIGH TEMPERATURES WILL GENERALLY BE IN THE 30S AND 40S...THE
WARMEST BEING ON SATURDAY WHICH MAY SEE A FEW LOCATIONS AROUND 50
BELOW 5000 FEET. THE TROUGH WILL MOVE EAST OF THE AREA BY
MONDAY...BUT WITH 700MB WINDS REMAINING ABOVE 65 KNOTS WITH A
STRONG LLVL PRESSURE GRADIENT...ANOTHER VERY WINDY DAY IS
EXPECTED. WINDS WILL EVENTUALLY SUBSIDE TUESDAY AND WEDNESDAY AS
THE LOW TO MID LEVEL PRESSURE GRADIENTS RELAX AND HIGH PRESSURE
ALOFT BUILDS INTO THE AREA.

&&

.AVIATION...(FOR THE 06Z TAFS THROUGH 06Z THURSDAY EVENING)
ISSUED AT 1041 PM MST WED JAN 8 2014

WYOMING AERODROMES...SNOWY...SIERRA MADRE AND NORTHERN LARAMIE
RANGES MOSTLY OBSCURED.

AT RAWLINS...OCCASIONAL IFR IN LOW CLOUDS...FOG AND SNOW TO 12Z...
AND AGAIN AFTER 19Z...OTHERWISE MVFR PREVAILS.

AT LARAMIE AND CHEYENNE...VFR WITH SCATTERED TO BROKEN MIDDLE
CLOUDS AROUND 8000 FEET AGL.

AT ALL WYOMING SITES AFTER 15Z...WINDS GUSTING 30 TO 35 KNOTS.

NEBRASKA AERODROMES...VFR PREVAILS WITH SCATTERED MIDDLE CLOUDS.
15Z TO 02Z...WINDS GUSTING UP TO 24 KNOTS.

&&

.FIRE WEATHER...
ISSUED AT 300 PM MST WED JAN 8 2014

A PROLONGED AND WIDESPREAD HIGH WIND EVENT TAKING SHAPE FOR
SOUTHEAST WYOMING AND NEBRASKA PANHANDLE BEGINNING IN OUR WIND
PRONE AREAS THURSDAY AFTERNOON. THE WINDS ARE EXPECTED TO BECOME
QUITE WIDESPREAD SATURDAY FOR LOWER LYING AREAS...SPREADING INTO
THE PANHANDLE SUNDAY. THIS IS DUE TO A SLOW MOVING PACIFIC LOW
PRESSURE SYSTEM THAT WILL MOVE THROUGH THE AREA.
FORTUNATELY...COLD TEMPERATURES AND SNOW ON THE GROUND WILL
PREVENT ANY CRITICAL FIRE WEATHER CONDITIONS FROM DEVELOPING.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...WINTER STORM WATCH FROM THURSDAY AFTERNOON THROUGH FRIDAY
     AFTERNOON FOR WYZ112-114.

     HIGH WIND WATCH FROM THURSDAY EVENING THROUGH SATURDAY AFTERNOON
     FOR WYZ106-110-116-117.

NE...NONE.
&&

UPDATE...RUBIN
SHORT TERM...CLAYCOMB
LONG TERM...TJT
AVIATION...RUBIN
FIRE WEATHER...CLAYCOMB

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
932 PM MST WED JAN 8 2014

WYZ101>119-092100-
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-
NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY-
SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-
LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
932 PM MST WED JAN 8 2014

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

.DAY ONE...TONIGHT

AREAS OF FOG...BELOW ONE MILE AT TIMES...WILL PERSIST THROUGH THE
EARLY MORNING HOURS OVER MUCH OF NIOBRARA COUNTY...INCLUDING LUSK.
FOG IS EXPECTED TO DISSIPATE AFTER MIDNIGHT.

SNOW WILL CONTINUE MUCH OF THE NIGHT OVER THE SNOWY AND SIERRA MADRE
RANGES...THOUGH IS EXPECTED TO DECREASE IN AREAL COVERAGE.
ADDITIONAL SNOWFALL ACCUMULATIONS OF 1 TO 4 INCHES WILL OCCUR WITH
LOCALIZED AREAS OF BLOWING SNOW...ESPECIALLY ON WEST FACING SLOPES.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

LIGHT TO MODERATE SNOW WILL OCCUR IN THE SNOWY AND SIERRA MADRE
MOUNTAINS THURSDAY THROUGH FRIDAY NIGHT. 10 TO 12 INCHES OF
ACCUMULATION ARE POSSIBLE WITH STRONG WEST TO SOUTHWEST WINDS
PRODUCING NEAR WHITEOUT CONDITIONS. A WINTER STORM WATCH HAS BEEN
ISSUED FOR THE SNOWY AND SIERRA MADRE RANGES FROM THURSDAY
AFTERNOON THROUGH FRIDAY AFTERNOON.

STRONG AND GUSTY WESTERLY WINDS WILL BE POSSIBLE FOR THE WIND PRONE
AREAS OF SOUTHEAST WYOMING THURSDAY EVENING THROUGH SATURDAY. HIGH
WIND WATCHES ARE IN EFFECT FOR THE ARLINGTON...BORDEAUX AND SOUTH
LARAMIE RANGE BEGINNING THURSDAY EVENING. A MORE WIDESPREAD AND
STRONGER HIGH WIND EVENT IS TAKING SHAPE FOR SUNDAY AND MONDAY.
WIDESPREAD WINDS OF 40 TO 50 MPH WITH GUSTS EXCEEDING 70 MPH ARE
POSSIBLE IN THE WIND PRONE AREAS...WITH 60 TO 70 MPH GUSTS
POSSIBLE ELSEWHERE IN SOUTHEAST WYOMING THROUGH THAT TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY 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>021-054-055-095-096-092100-
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-
932 PM MST WED JAN 8 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA
PANHANDLE.

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

A WIDESPREAD AND STRONG HIGH WIND EVENT IS TAKING SHAPE FOR
SUNDAY AND MONDAY. LATEST FORECAST GUIDANCE INDICATES WIDESPREAD
WINDS OF 30 TO 40 MPH WITH GUSTS EXCEEDING 60 MPH ARE POSSIBLE
FOR MOST OF THE NEBRASKA PANHANDLE THROUGH THAT TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

&&

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

RUBIN

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
1121 PM MST WED JAN 8 2014

WYZ102-108-090900-
NIOBRARA COUNTY-GOSHEN COUNTY-
INCLUDING THE CITIES OF...LUSK...TORRINGTON
1121 PM MST WED JAN 8 2014

...AREAS OF DENSE FOG THROUGH THE EARLY MORNING HOURS...

PLEASE WATCH FOR AREAS OF DENSE FOG...WITH VISIBILITIES AT OR BELOW
ONE QUARTER OF A MILE...ACROSS NIOBRARA COUNTY INCLUDING LUSK...
THROUGH 1 OR 2 AM. FOG IS THEN EXPECTED TO DISSIPATE.

WHEN YOU ARE DRIVING AND ENCOUNTER DENSE FOG...PLEASE SLOW DOWN...
USE YOUR LOW BEAM HEADLIGHTS AND ALLOW FOR EXTRA TRAVEL TIME TO
SAFELY REACH YOUR DESTINATION.

RUBIN