Friday, November 21, 2014

Winter Storm Warning Star Valley!

The Riverton Forecast Office has issued a Winter Storm Warning for Star Valley.

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
902 PM MST FRI NOV 21 2014

...SNOW AND BLOWING SNOW ACROSS THE WESTERN MOUNTAINS AND VALLEYS
SATURDAY AND SATURDAY NIGHT...

.SNOW WILL INCREASE ACROSS WESTERN WYOMING AHEAD OF AN APPROACHING
COLD FRONT SATURDAY MORNING. THE COLD FRONT WILL PUSH ACROSS
WESTERN WYOMING SATURDAY AFTERNOON ACCOMPANIED BY MODERATE TO
HEAVY SNOWFALL AND STRONG RIDGE TOP WINDS. NUMEROUS SNOW SHOWERS
WILL PERSIST BEHIND THE FRONT SATURDAY NIGHT ALONG WITH GUSTY
NORTHWEST WIND AT RIDGE TOP LEVEL CAUSING AREAS OF BLOWING AND
DRIFTING SNOW.

WYZ012-013-023-221215-
/O.CON.KRIW.WS.W.0013.141122T0700Z-141123T1300Z/
TETON AND GROS VENTRE MOUNTAINS-JACKSON HOLE-STAR VALLEY-
INCLUDING THE CITIES OF...JACKSON...AFTON...ALPINE...
STAR VALLEY RANCH...THAYNE
902 PM MST FRI NOV 21 2014

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 AM MST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
6 AM MST SUNDAY.

* SUMMARY AND TIMING...LIGHT SNOW WILL BEGIN TO FALL IN THE
  MOUNTAINS LATE TONIGHT...SPREADING INTO THE VALLEYS BY SATURDAY
  MORNING AND BECOMING MODERATE TO HEAVY IN INTENSITY. SNOW WILL
  START TO TAPER OFF LATE SATURDAY EVENING.

* SNOW ACCUMULATIONS...10 TO 20 INCHES IN THE MOUNTAINS. 6 TO 10
  INCHES IN THE VALLEYS.

* WIND AND VISIBILITY...WEST WINDS AT 30 TO 40 MPH WITH GUST TO 60
  MPH AT RIDGE TOP LEVEL. WEST TO SOUTHWEST WIND AT 15 TO 25 MPH
  WITH GUSTS TO 35 MPH ACROSS OPEN AREAS BELOW 7000 FEET ON
  SATURDAY. WINDS WILL SHIFT TO THE NORTHWEST SATURDAY NIGHT AND
  DECREASE OVERALL. EXPECT WIDESPREAD AREAS OF REDUCED VISIBILITY
  IN FALLING AND BLOWING SNOW...ESPECIALLY ON THE PASSES AND NORTH
  OF JACKSON AND WILSON...ACROSS THE TETON VILLAGE AREA AND GRAND
  TETON NATIONAL PARK.

* 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...

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.

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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