Winter Weather Warnings / Watches / Advisories
Issued by NWS Cheyenne, WY

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WWUS45 KCYS 210937
WSWCYS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
237 AM MST SUN DEC 21 2014

...HEAVY MOUNTAIN SNOWS TO CONTINUE THROUGH TUESDAY...

...SNOW AND BLOWING SNOW LIKELY TO SIGNIFICANTLY IMPACT TRAVEL
ALONG THE INTERSTATE 80 CORRIDOR BETWEEN RAWLINS AND LARAMIE THIS
AFTERNOON AND TONIGHT...

.VERY MOIST PACIFIC AIR COMBINED WITH STRONG WEST WINDS HAVE SET
THE STAGE FOR HEAVY SNOW FOR THE SNOWY AND SIERRA MADRE MOUNTAIN
RANGES. STRONG UPSLOPE FLOW AND AN APPROACHING STORM SYSTEM WILL
ALLOW SNOWFALL RATES TO INCREASE TODAY. ACCUMULATIONS OF 2 TO 3
FEET ARE EXPECTED THROUGH TUESDAY MORNING IN THE MOUNTAINS. SNOW
AMOUNTS WILL BE MUCH LOWER IN THE ADJACENT FOOTHILLS. HOWEVER...
STRONG WEST TO SOUTHWEST WINDS WILL COMBINE WITH SNOW TO PRODUCE
VERY LOW VISIBILITIES. THIS WILL BE ESPECIALLY TRUE IN AND AROUND
ARLINGTON...ALONG INTERSTATE 80 BETWEEN LARAMIE AND CHEYENNE.
TRAVEL WILL BE EXTREMELY DANGEROUS THIS AFTERNOON AND TONIGHT.

WYZ109-211045-
/O.CAN.KCYS.WS.A.0016.141221T1500Z-141222T1800Z/
CENTRAL CARBON COUNTY-
INCLUDING THE CITIES OF...RAWLINS...SINCLAIR...HANNA
237 AM MST SUN DEC 21 2014

...WINTER STORM WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WINTER
STORM WATCH. A HIGH WIND WARNING WILL BE ISSUED IN ITS PLACE.

$$

WYZ111-211745-
/O.UPG.KCYS.WS.A.0016.141221T1500Z-141222T1800Z/
/O.EXB.KCYS.WS.W.0016.000000T0000Z-141222T1800Z/
SOUTHWEST CARBON COUNTY-
INCLUDING THE CITIES OF...BAGGS...DIXON
237 AM MST SUN DEC 21 2014

...WINTER STORM WARNING IN EFFECT UNTIL 11 AM MST MONDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
UNTIL 11 AM MST MONDAY. THE WINTER STORM WATCH IS NO LONGER IN
EFFECT.

* TIMING...MODERATE TO HEAVY SNOW WILL DEVELOP BY MID AFTERNOON
  ALONG WITH STRONG WESTERLY WINDS. THIS WILL RESULT IN VERY LOW
  VISIBILITIES WHICH WILL CONTINUE THROUGH EARLY MONDAY.

* TOTAL SNOW ACCUMULATIONS...RAIN WILL CHANGE TO ALL SNOW BY MID
  AFTERNOON...AND BECOME HEAVY BY THIS EVENING AND OVERNIGHT. SNOW
  ACCUMULATIONS OF 4 TO 8 INCHES ARE POSSIBLE IN LOWER ELEVATIONS
  WEST OF THE SIERRA MADRES.

* WINDS/VISIBILITY...WEST WINDS GUSTING AS HIGH AS 45 MPH WILL
  COMBINE WITH ACCUMULATING SNOW TO CAUSE AREAS OF SIGNIFICANTLY
  REDUCED VISIBILITIES IN BLOWING AND DRIFTING SNOW.

* IMPACTS...TRAVEL WILL BECOME VERY DANGEROUS OR IMPOSSIBLE IN
  SOUTHWESTERN CARBON COUNTY THIS AFTERNOON THROUGH EARLY MONDAY
  MORNING. NEAR WHITEOUT CONDITIONS WILL BE POSSIBLE IN THE OPEN
  COUNTRY. ROADS WILL BECOME SLICK AND SNOW COVERED...AND COULD
  BECOME IMPASSIBLE.

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.

&&

$$

WYZ110-211745-
/O.EXB.KCYS.WS.W.0016.000000T0000Z-141222T1800Z/
NORTH SNOWY RANGE FOOTHILLS-
INCLUDING THE CITIES OF...ARLINGTON...ELK MOUNTAIN
237 AM MST SUN DEC 21 2014

...WINTER STORM WARNING IN EFFECT UNTIL 11 AM MST MONDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
UNTIL 11 AM MST MONDAY.

* TIMING...HIGH WINDS WILL CONTINUE THROUGH LATE TONIGHT. LIGHT
  SNOW WILL DEVELOP BY LATE MORNING...CAUSING HAZARDOUS TRAVEL
  THROUGH THE AFTERNOON AND NIGHT.

* TOTAL SNOW ACCUMULATIONS...GENERALLY 1 TO 3 INCHES.

* WINDS/VISIBILITY...WEST-TO-SOUTHWEST 40 TO 50 MPH WITH GUSTS TO
  70 MPH. NEAR WHITEOUT CONDITIONS WILL BE POSSIBLE.

* IMPACTS...TRAVEL ALONG INTERSTATE 80 IN THE ARLINGTON AREA
  BETWEEN LARAMIE AND RAWLINS WILL BECOME VERY HAZARDOUS. NEAR
  WHITEOUT CONDITIONS ARE LIKELY WITH POTENTIAL FOR SIGNIFICANT
  DRIFTING OVER THE ROADWAY. ROADS COULD BECOME SLICK AND SNOW
  COVERED AS WELL. STRONG CROSSWINDS WILL BE VERY DANGEROUS TO
  LIGHT WEIGHT AND HIGH PROFILE VEHICLES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND STRONG WINDS 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.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5 1 1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ112-114-211745-
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SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF...CENTENNIAL...ALBANY...WOODS LANDING
237 AM MST SUN DEC 21 2014

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST
TUESDAY...

* TIMING...SNOW WILL INCREASE IN COVERAGE AND INTENSITY THROUGH
  THE DAY TODAY...AND CONTINUE THROUGH EARLY TUESDAY.

* TOTAL SNOW ACCUMULATIONS...2 TO 3 FEET. HIGHEST AMOUNTS ON WEST
  AND NORTHWEST FACING SLOPES.

* WINDS/VISIBILITY...SUSTAINED WEST WINDS WILL INCREASE TO 30 TO
  40 MPH WITH GUSTS TO 70 MPH. NEAR WHITEOUT CONDITIONS ARE LIKELY
  IN FALLING AND BLOWING SNOW.

* IMPACTS...TRAVEL ALONG HIGHWAY 230 BETWEEN WOODS LANDING AND THE
  STATE LINE...AND BETWEEN ENCAMPMENT AND THE STATE LINE MAY BE
  IMPACTED BY THE WINTRY CONDITIONS. OUTDOOR ENTHUSIASTS PLANNING
  TO VENTURE OUT INTO THE HIGH COUNTRY WILL WANT TO EXERCISE
  EXTREME CAUTION TODAY THROUGH MONDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND STRONG WINDS 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.

&&

$$

WYZ113-115-211745-
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/O.NEW.KCYS.WW.Y.0030.141221T1900Z-141222T1500Z/
UPPER NORTH PLATTE RIVER BASIN-LARAMIE VALLEY-
INCLUDING THE CITIES OF...SARATOGA...ENCAMPMENT...RIVERSIDE...
LARAMIE
237 AM MST SUN DEC 21 2014

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO 8 AM MST
MONDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM NOON TODAY TO 8 AM MST MONDAY. THE WINTER STORM WATCH IS NO
LONGER IN EFFECT.

* TIMING...LIGHT SNOW WILL DEVELOP BY LATE MORNING OR EARLY
  AFTERNOON ALONG WITH GUSTY WEST WINDS. THESE CONDITIONS WILL
  PERSIST THROUGH EARLY MONDAY.

* TOTAL SNOW ACCUMULATIONS...GENERALLY 1 TO 3 INCHES.

* WINDS/VISIBILITY...THE COMBINATION OF GUSTY WEST WINDS AND
  FALLING SNOW COULD RESULT IN AREAS OF VERY LOW VISIBILITIES
  UNDER ONE QUARTER OF A MILE.

* IMPACTS...TRAVEL WITHIN THE LARAMIE AND UPPER NORTH PLATTE RIVER
  VALLEYS MAY BE IMPACTED BY THESE WINTRY CONDITIONS. THIS
  INCLUDES THE CITIES OF LARAMIE AND SARATOGA. THOSE WITH TRAVEL
  PLANS THROUGH SOUTHEAST WYOMING WILL WANT TO USE EXTREME CAUTION
  TODAY AND MONDAY.

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.

&&

$$

HAMMER



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