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

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WWUS45 KRIW 210854
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
154 AM MST FRI NOV 21 2014

...WINTER STORM CONDITIONS EXPECTED ACROSS THE
WESTERN...CENTRAL...AND NORTHERN MOUNTAINS THIS WEEKEND...

.ANOTHER WINTER STORM EXPECTED TO DROP A FOOT OR MORE OF SNOW IN
THE CENTRAL...NORTHERN AND WESTERN MOUNTAINS THIS WEEKEND. THIS
STORM WILL BE ACCOMPANIED BY STRONGER WINDS THAN THE LAST STORM
WITH GUSTS OVER 70 MPH POSSIBLE AT EXPOSED PEAKS. SNOW WILL BEGIN
LATE FRIDAY NIGHT WITH THE HEAVIEST SNOW EXPECTED TO FALL DURING
THE DAY ON SATURDAY...TAPERING OFF SOME SATURDAY NIGHT.

WYZ002-014-015-212300-
/O.EXA.KRIW.WS.A.0011.141122T0700Z-141123T1300Z/
ABSAROKA MOUNTAINS-WIND RIVER MOUNTAINS WEST-
WIND RIVER MOUNTAINS EAST-
154 AM MST FRI NOV 21 2014

...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE
SATURDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH LATE
SATURDAY NIGHT.

* SUMMARY AND TIMING...LIGHT SNOW WILL BEGIN TO FALL IN THE
  MOUNTAINS TONIGHT...SPREADING INTO THE VALLEYS BY SUNRISE AND
  INCREASING IN INTENSITY ALONG WITH THE WIND THROUGH THE DAY.
  SNOW AND WIND WILL BOTH BECOME LIGHTER AGAIN AFTER MIDNIGHT.

* SNOW ACCUMULATIONS...8 TO 14 INCHES EXPECTED IN THE MOUNTAINS
  WITH 4 TO 8 INCHES EXPECTED IN THE VALLEYS...WITH UP TO 10
  INCHES POSSIBLE IN FAVORED UPSLOPE LOCATIONS OF THE VALLEYS.

* WIND AND VISIBILITY...WINDS WILL INCREASE FROM THE WEST WITH
  GUSTS TO 40 MPH IN THE VALLEYS AND UP TO TO 75 MPH OVER THE
  HIGHER MOUNTAIN PEAKS THROUGH SATURDAY AFTERNOON. EXPECT
  WIDESPREAD AREAS OF SEVERELY REDUCED VISIBILITY IN FALLING AND
  BLOWING SNOW...ESPECIALLY ON THE PASSES.

* IMPACTS...SNOW...STRONG WIND AND BLOWING SNOW MAY LEAD TO VERY
  DIFFICULT TRAVEL ACROSS THE CENTRAL AND NORTHERN MOUNTAINS AND
  VALLEYS THIS WEEKEND...AS WELL AS INCREASE THE AVALANCHE
  DANGER...PLEASE VISIT WWW.JHAVALANCHE.ORG BEFORE VENTURING OUT
  INTO THE BACK COUNTRY THIS WEEKEND. COOLER TEMPERATURES AND
  STRONG WINDS WILL ALSO CAUSE WIND CHILLS TO DROP TO DANGEROUS
  LEVELS.

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.

&&

$$

WYZ001-012-013-023>025-212300-
/O.CON.KRIW.WS.A.0011.141122T0700Z-141123T1300Z/
YELLOWSTONE NATIONAL PARK-TETON AND GROS VENTRE MOUNTAINS-
JACKSON HOLE-STAR VALLEY-SALT RIVER AND WYOMING RANGES-
UPPER GREEN RIVER BASIN FOOTHILLS-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL...
JACKSON...AFTON...ALPINE...STAR VALLEY RANCH...THAYNE...PINEDALE
154 AM MST FRI NOV 21 2014

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
LATE SATURDAY NIGHT...

A WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
LATE SATURDAY NIGHT.

* SUMMARY AND TIMING...LIGHT SNOW WILL BEGIN TO FALL IN THE
  MOUNTAINS TONIGHT...SPREADING INTO THE VALLEYS BY SUNRISE AND
  BECOMING MODERATE TO HEAVY IN INTENSITY. SNOW WILL START TO TAPER OFF
  AFTER MIDNIGHT.

* SNOW ACCUMULATIONS...10 TO 18 INCHES EXPECTED IN THE MOUNTAINS
  WITH LOCALLY HIGHER AMOUNTS UP TO 22 INCHES. 6 TO 10 INCHES
  EXPECTED IN THE VALLEYS...WITH UP TO 12 INCHES POSSIBLE IN
  FAVORED UPSLOPE LOCATIONS OF THE VALLEYS.

* WIND AND VISIBILITY...WINDS WILL INCREASE FROM THE SOUTHWEST
  WITH GUSTS TO 30 MPH IN THE VALLEYS AND GUSTS TO 60 MPH POSSIBLE
  ON EXPOSED PEAKS THROUGH SATURDAY AFTERNOON. WINDS WILL SHIFT TO
  THE WEST SATURDAY EVENING AND WILL BE LESS GUSTY. EXPECT
  WIDESPREAD AREAS OF REDUCED VISIBILITY IN FALLING AND BLOWING
  SNOW...ESPECIALLY ON THE PASSES.

* IMPACTS...HEAVY SNOW...BRISK WIND AND BLOWING SNOW MAY LEAD TO VERY
  DIFFICULT TRAVEL ACROSS THE WESTERN MOUNTAINS AND VALLEYS THIS
  WEEKEND...AS WELL AS INCREASE THE AVALANCHE DANGER...PLEASE
  VISIT WWW.JHAVALANCHE.ORG BEFORE VENTURING OUT INTO THE BACK
  COUNTRY THIS WEEKEND. COOLER TEMPERATURES AND STRONG WINDS WILL
  ALSO CAUSE WIND CHILLS TO DROP TO DANGEROUS LEVELS.

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.

&&

$$







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