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Winter Storm Watch

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
256 AM MST FRI DEC 19 2014

...SIGNIFICANT SNOWFALL POSSIBLE THIS WEEKEND...

.A MOIST PACIFIC SYSTEM WILL MOVE THROUGH THE INTERMOUNTAIN WEST
THIS WEEKEND...SPREADING SNOWFALL ACROSS THE WESTERN MOUNTAINS AND
VALLEYS. SNOWFALL MAY BE HEAVY AT TIMES...ESPECIALLY SUNDAY
AFTERNOON AND EVENING. THIS SYSTEM MAY BRING SIGNIFICANT SNOWFALL
ACCUMULATIONS ACROSS THE WESTERN MOUNTAINS AND VALLEYS BEFORE
WEAKENING MONDAY MORNING.

WYZ001-012-013-023-024-200000-
/O.NEW.KRIW.WS.A.0014.141221T0300Z-141222T1500Z/
YELLOWSTONE NATIONAL PARK-TETON AND GROS VENTRE MOUNTAINS-
JACKSON HOLE-STAR VALLEY-SALT RIVER AND WYOMING RANGES-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL...
JACKSON...AFTON...ALPINE...STAR VALLEY RANCH...THAYNE
256 AM MST FRI DEC 19 2014

...WINTER STORM WATCH IN EFFECT FROM SATURDAY EVENING THROUGH
MONDAY MORNING...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM SATURDAY EVENING THROUGH
MONDAY MORNING.

* SUMMARY AND TIMING...SNOWFALL WILL MOVE INTO WESTERN WYOMING
  SATURDAY EVENING...AND MAY BECOME HEAVY ON SUNDAY ACROSS THE
  AREA BEFORE WEAKENING ON MONDAY MORNING.

* SNOW ACCUMULATIONS...THE VALLEY LOCATIONS MAY SEE 5 TO 10 INCHES
  OF SNOWFALL WITH THIS SYSTEM WITH THE HIGHER ACCUMULATIONS
  EXPECTED ACROSS THE NORTHERN PORTION OF THE JACKSON VALLEY.
  MOUNTAIN LOCATIONS COULD SEE 12 TO 16 INCHES...WITH LOCALLY
  HIGHER AMOUNTS TO 24 INCHES.

* WIND AND VISIBILITY...WIND WILL BE STRONGEST OVER THE HIGHER
  ELEVATIONS...AND MAY IMPACT MOUNTAIN PASSES WITH WEST WIND OF 25
  TO 35 MPH WITH GUSTS OVER 50 MPH. EVEN THE LOWER ELEVATIONS WILL
  SEE SOUTHWEST WIND INCREASING TO 15 TO 25 MPH ON SUNDAY WITH
  GUSTS TO 35 MPH IN OPEN AREAS. THE WIND AND SNOWFALL WILL LIMIT
  THE VISIBILITY TO UNDER ONE HALF MILE AT TIMES.

* IMPACTS...THE COMBINATION OF SNOWFALL AND WIND OVER THE HIGHER
  ELEVATIONS WOULD HAVE AN ADVERSE IMPACT ON TRAVELERS ACROSS THE
  AREA. SIGNIFICANT SNOWFALL ACROSS THE VALLEYS WILL CREATE
  HAZARDOUS DRIVING CONDITIONS DUE TO SNOW PACKED ROADWAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A WINTER STORM WATCH MEANS CONDITIONS ARE FAVORABLE
FOR HAZARDOUS WINTER WEATHER IN AND CLOSE TO THE WATCH AREA.

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.

&&

$$



Hazardous Weather Outlook

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
331 AM MST FRI DEC 19 2014

WYZ001>020-022>030-201200-
ABSAROKA MOUNTAINS-BIGHORN MOUNTAINS SOUTHEAST-
BIGHORN MOUNTAINS WEST-CASPER MOUNTAIN-CODY FOOTHILLS-
EAST SWEETWATER COUNTY-FLAMING GORGE-
GREEN MOUNTAINS AND RATTLESNAKE RANGE-JACKSON HOLE-LANDER FOOTHILLS-
NATRONA COUNTY LOWER ELEVATIONS-NORTH BIG HORN BASIN-
NORTHEAST JOHNSON COUNTY-OWL CREEK AND BRIDGER MOUNTAINS-
ROCK SPRINGS AND GREEN RIVER-SALT RIVER AND WYOMING RANGES-
SOUTH LINCOLN COUNTY-SOUTHEAST BIG HORN BASIN-
SOUTHEAST JOHNSON COUNTY-SOUTHWEST BIG HORN BASIN-STAR VALLEY-
TETON AND GROS VENTRE MOUNTAINS-UPPER GREEN RIVER BASIN-
UPPER GREEN RIVER BASIN FOOTHILLS-UPPER WIND RIVER BASIN-
WIND RIVER BASIN-WIND RIVER MOUNTAINS EAST-WIND RIVER MOUNTAINS WEST-
YELLOWSTONE NATIONAL PARK-
331 AM MST FRI DEC 19 2014

...DENSE FOG ADVISORY FOR THE WIND RIVER BASIN UNTIL 9 AM FRIDAY
MORNING...

...WINTER STORM WATCH FOR PORTIONS OF WESTERN WYOMING SATURDAY
EVENING THROUGH MONDAY MORNING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

AREAS OF DENSE FOG WILL CONTINUE ACROSS THE WIND RIVER BASIN THIS
MORNING...RESULTING IN VERY LIMITED VISIBILITIES FOR MORNING
DRIVERS. FOG SHOULD LIFT THROUGH THE MORNING HOURS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SUNDAY THROUGH MONDAY...SIGNIFICANT SNOWFALL AND WIND EXPECTED IN THE
WEST. SNOWFALL AMOUNTS OF 1 TO 2 FEET ARE POSSIBLE IN THE WESTERN
MOUNTAINS WITH THE LOWER ELEVATIONS AND VALLEYS POTENTIALLY
RECEIVING 5 TO 10 INCHES WITH LOCALLY HIGHER AMOUNTS.

STRONG WINDS ARE ALSO EXPECTED ACROSS THE RED DESERT...INTERSTATE 80
CORRIDOR...SOUTH PASS AND JEFFREY CITY AREA TO CASPER SUNDAY
AFTERNOON INTO MONDAY AND ALSO THE ABSAROKA MOUNTAINS AND ADJACENT
CODY FOOTHILLS WITH STRONG GUSTS. THE GREEN RIVER BASIN AND AREA
FROM DUBOIS TO RIVERTON MAY ALSO BLOW QUITE STRONG ON MONDAY.

WEDNESDAY NIGHT THROUGH CHRISTMAS DAY...A NEW STORM SYSTEM WILL
DEVELOP TO OUR WEST SPREADING SNOW FROM WEST TO EAST. THE POTENTIAL
FOR SIGNIFICANT SNOWFALL IS STILL A POSSIBILITY ACROSS CENTRAL
AND SOUTHWEST WYOMING ON CHRISTMAS DAY. STAY TUNED OVER THE NEXT
SEVERAL DAYS ON THIS POTENTIAL TRAVEL IMPACTING STORM.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT LIMITED VISIBILITIES THIS MORNING.
THANK YOU.

$$

TEAM RIVERTON




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