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

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809
WWUS45 KRIW 210421
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
921 PM MST FRI JAN 20 2017

...SIGNIFICANT PERIOD OF SNOWFALL RETURNING TO WESTERN WYOMING
SUNDAY EVENING THROUGH MONDAY...

.ANOTHER STRONG MOIST PACIFIC WINTER WEATHER SYSTEM IS POISED TO
MOVE INTO WESTERN WYOMING LATER ON SUNDAY. ALONG WITH GOOD UPPER
LEVEL FORCING...THIS WILL BRING PERIODS OF HEAVY SNOW TO MUCH OF THE
MOUNTAINS...FOOTHILLS...AND VALLEYS WEST OF THE DIVIDE.

WYZ001-012>014-023>025-027-211000-
/O.NEW.KRIW.WS.A.0004.170123T0000Z-170124T0000Z/
YELLOWSTONE NATIONAL PARK-TETON AND GROS VENTRE MOUNTAINS-
JACKSON HOLE-WIND RIVER MOUNTAINS WEST-STAR VALLEY-
SALT RIVER AND WYOMING RANGES-UPPER GREEN RIVER BASIN FOOTHILLS-
SOUTH LINCOLN COUNTY-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL...
JACKSON...AFTON...ALPINE...STAR VALLEY RANCH...THAYNE...
PINEDALE...KEMMERER...COKEVILLE
921 PM MST FRI JAN 20 2017

...WINTER STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY AFTERNOON.

* TIMING...LIGHT SNOW WILL MOVE INTO AND INCREASE IN EXTENT ACROSS
  FAR WESTERN WYOMING SUNDAY...BECOMING MODERATE TO HEAVY AT TIMES
  SUNDAY NIGHT THROUGH MONDAY MORNING BEFORE TAPERING OFF LATER
  MONDAY AFTERNOON.

* SNOW TOTALS...5 TO 10 INCHES IN THE VALLEYS. 8 TO 16 INCHES IN
  THE MOUNTAINS.

* MAIN IMPACT...ROADS AND HIGHWAYS WILL BECOME SLICK AND SNOW
  PACKED AND TRAVEL WILL BE DIFFICULT AT TIMES.

* OTHER IMPACTS...THE VISIBILITY MAY OFTEN LOWER TO BELOW ONE
  HALF MILE IN HEAVY SNOWFALL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW AND/OR BLOWING SNOW THAT MAY IMPACT TRAVEL. CONTINUE TO
MONITOR THE LATEST FORECASTS.

&&

$$



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