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

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WWUS45 KRIW 051326
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
626 AM MST MON DEC 5 2016

...LIGHT TO MODERATE SNOW AND SOME BLOWING SNOW FOR THE WESTERN
MOUNTAINS AND VALLEYS THROUGH THIS MORNING...

...SNOW AND BLOWING SNOW ACROSS BIGHORN BASIN...BIGHORN MOUNTAINS
JOHNSON AND SWEETWATER COUNTIES TO NOON TODAY...

.INCREASING PACIFIC MOISTURE IN COMBINATION WITH A STRONG UPPER
LEVEL DISTURBANCE...INCREASINGLY COLD AIR MASS...AND AN EVENTUAL
COLD FRONT PASSAGE...WILL BRING MORE SNOW IN ADDITION TO GUSTY
SOUTH TO SOUTHWEST WINDS TO WYOMING THROUGH THIS MORNING.

AS THE WINTER STORM MOVES EAST...STRONG WINDS AND SNOW WILL
PRODUCE AREAS OF BLOWING AND DRIFTING SNOW THROUGH MIDDAY...
INCLUDING THE BIGHORN BASIN...EASTERN WIND RIVER MOUNTAINS...
BIGHORN MOUNTAINS AND JOHNSON COUNTY AS WELL AS SWEETWATER COUNTY
IN THE SOUTH. OCCASIONALLY POOR DRIVING CONDITIONS EXPECTED TO
DEVELOP ON INTERSTATE HIGHWAYS 90...25 AND 80 THIS MORNING.

WYZ001-012-013-051430-
/O.CAN.KRIW.WS.W.0013.000000T0000Z-161205T1900Z/
YELLOWSTONE NATIONAL PARK-TETON AND GROS VENTRE MOUNTAINS-
JACKSON HOLE-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL...JACKSON
626 AM MST MON DEC 5 2016

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE WINTER
STORM WARNING.

SNOW HAS ENDED OR DECREASED ACROSS THE NORTHWEST MOUNTAINS AND
JACKSON VALLEY THIS MORNING AFTER CONSIDERABLE SNOW SINCE
YESTERDAY. THERE WILL STILL BE AREAS OF BLOWING SNOW WITH STRONG
WEST WIND...ESPECIALLY OVER THE PEAKS. TRAVEL OVER TETON PASS WILL
BE SLICK.

$$

WYZ015-051900-
/O.CON.KRIW.WS.W.0013.000000T0000Z-161205T1900Z/
WIND RIVER MOUNTAINS EAST-
626 AM MST MON DEC 5 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY...

* TIMING...MODERATE SNOW AND STRONG WIND ACROSS THE EASTERN WIND
  RIVER MOUNTAINS WILL LAST INTO THIS MORNING BEFORE DECREASING
  IN INTENSITY THROUGH THE LATER MORNING HOURS. HIGHWAY 28 AT
  SOUTH PASS IS CLOSED THROUGH EARLY THIS MORNING DUE TO BLOWING
  AND DRIFTING SNOW...STRONG WINDS GUSTING OVER 55 TO 65 MPH...
  AND LOW VISIBILITY.

* STORM TOTAL SNOWFALL...8 TO 16 INCHES WITH LOCALLY HIGHER
  AMOUNTS.

* SNOWFALL REPORTS THROUGH 4 AM MONDAY...10 TO 15 INCHES OVER
  SOUTH PASS WITH 6 TO 8 INCHES AROUND TOGWOTEE PASS.

* WIND AND VISIBILITY...WEST TO NORTHWEST WIND 30 TO 40 MPH WITH
  GUSTS 45 TO 65 MPH WILL CAUSE AREAS OF BLOWING AND DRIFTING
  SNOW... WITH VISIBILITY LIMITED TO LESS THAN A QUARTER MILE ON
  SOUTH PASS.

* IMPACTS...THE WYOMING DEPARTMENT OF TRANSPORTATION EXPECTS
  SOUTH PASS TO REMAIN CLOSED UNTIL AT LEAST 8 AM THIS MORNING.
  ROADS MAY BECOME SLICK...AND SNOW PACKED WITH LIMITED
  VISIBILITY AT TIMES. PEOPLE PLANNING OUTDOOR ACTIVITIES SHOULD
  BE PREPARED FOR ADVERSE WINTER WEATHER CONDITIONS AND TAKE THE
  PROPER PRECAUTIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... AND
OR BLOWING SNOW ARE EXPECTED OR OCCURRING. THIS COULD MAKE TRAVEL
VERY HAZARDOUS OR IMPOSSIBLE. IF YOU MUST TRAVEL KEEP SOME FOOD...
WATER... AND AN EXTRA FLASHLIGHT IN YOUR VEHICLE IN CASE OF AN
EMERGENCY. CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY
DIALING 5 1 1.

&&

$$

WYZ023-024-051900-
/O.CON.KRIW.WW.Y.0036.000000T0000Z-161205T1900Z/
STAR VALLEY-SALT RIVER AND WYOMING RANGES-
INCLUDING THE CITIES OF...AFTON...ALPINE...STAR VALLEY RANCH...
THAYNE
626 AM MST MON DEC 5 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST
TODAY...

* TIMING...LIGHT TO MODERATE SNOW ACROSS WESTERN WYOMING
  CONTINUE INTO THE EARLY MORNING HOURS BEFORE DECREASING IN
  INTENSITY THROUGH THE REST OF THE MORNING HOURS.

* STORM TOTAL SNOWFALL...6 TO 12 INCHES IN THE MOUNTAINS WITH 4
  TO 8 INCHES IN THE STAR VALLEY WITH LOCALLY HIGHER AMOUNTS.

* SNOWFALL REPORTS THROUGH 1 AM MONDAY...2 TO 8 INCHES WITH
  LOCALLY HIGHER AMOUNTS IN THE MOUNTAINS.

* WIND AND VISIBILITY...SOUTHWEST WIND 15 TO 25 MPH WITH GUSTS
  35 MPH WILL CAUSE AREAS OF BLOWING AND DRIFTING SNOW...WITH
  VISIBILITY LIMITED TO A QUARTER MILE OR LESS AT TIMES ON SALT
  RIVER PASS.

* IMPACTS...ROADS MAY BECOME SLICK...AND SNOW PACKED WITH
  LIMITED VISIBILITY AT TIMES. PEOPLE PLANNING OUTDOOR
  ACTIVITIES SHOULD BE PREPARED FOR ADVERSE WINTER WEATHER
  CONDITIONS AND TAKE THE PROPER PRECAUTIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS PERIODS
OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR
SNOW COVERED AND SLICK ROADS WITH LIMITED VISIBILITIES. SLOW
DOWN... AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION. CHECK THE
LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 5 1 1.

&&

$$

WYZ014-025-051900-
/O.CON.KRIW.WW.Y.0036.000000T0000Z-161205T1900Z/
WIND RIVER MOUNTAINS WEST-UPPER GREEN RIVER BASIN FOOTHILLS-
INCLUDING THE CITY OF...PINEDALE
626 AM MST MON DEC 5 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST
TODAY...

* TIMING...LIGHT TO MODERATE SNOW WILL CONTINUE INTO THE EARLY
  MORNING HOURS BEFORE DECREASING IN INTENSITY THROUGH THE REST
  OF THE MORNING HOURS.

* STORM TOTAL SNOWFALL...POSSIBLE 8 TO 15 INCHES IN THE WIND
  RIVER MOUNTAINS WITH 2 TO 6 INCHES FROM PINEDALE TO BONDURANT.

* SNOWFALL REPORTS THROUGH 8 PM SUNDAY...3 TO 8 INCHES IN THE
  WIND RIVER MOUNTAINS WITH THE HIGHER AMOUNTS ON THE NORTHERN
  END OF THE RANGE...AND LESSER AMOUNTS IN THE FOOTHILLS.

* WIND AND VISIBILITY...WEST TO SOUTHWEST WIND 10 TO 25 MPH WITH
  GUSTS 30 TO 45 MPH WILL CAUSE AREAS OF BLOWING AND DRIFTING
  SNOW... WITH VISIBILITY LIMITED TO A HALF MILE OR LESS AT
  TIMES.

* IMPACTS...ROADS MAY BECOME SLICK...AND SNOW PACKED WITH
  LIMITED VISIBILITY AT TIMES. PEOPLE PLANNING OUTDOOR
  ACTIVITIES SHOULD BE PREPARED FOR ADVERSE WINTER WEATHER
  CONDITIONS AND TAKE THE PROPER PRECAUTIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS PERIODS
OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR
SNOW COVERED AND SLICK ROADS WITH LIMITED VISIBILITIES. SLOW
DOWN... AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION. CHECK THE
LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 5 1 1.

&&

$$

WYZ016-051900-
/O.CON.KRIW.WW.Y.0036.000000T0000Z-161205T1900Z/
UPPER WIND RIVER BASIN-
INCLUDING THE CITY OF...DUBOIS
626 AM MST MON DEC 5 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST
TODAY...

* TIMING...LIGHT TO MODERATE SNOW ACROSS THE UPPER WIND RIVER
  BASIN WILL CONTINUE THROUGH THE EARLY MORNING HOURS BEFORE
  DECREASING IN INTENSITY THROUGH THE REST OF THE MORNING HOURS.

* TOTAL SNOWFALL...POSSIBLE 2 TO 8 INCHES WITH HEAVIER AMOUNTS
  TOWARDS TOGWOTEE PASS.

* WIND AND VISIBILITY...WEST TO NORTHWEST WIND 20 TO 25 MPH WITH
  GUSTS 40 MPH MAY CAUSE AREAS OF BLOWING AND DRIFTING SNOW...
  WITH VISIBILITY LIMITED TO A QUARTER MILE OR LESS AT TIMES.

* IMPACTS...ROADS MAY BECOME SLICK...AND SNOW PACKED WITH
  LIMITED VISIBILITY AT TIMES. PEOPLE PLANNING OUTDOOR
  ACTIVITIES SHOULD BE PREPARED FOR ADVERSE WINTER WEATHER
  CONDITIONS AND TAKE THE PROPER PRECAUTIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS PERIODS
OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR
SNOW COVERED AND SLICK ROADS WITH LIMITED VISIBILITIES. SLOW
DOWN... AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION. CHECK THE
LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 5 1 1.

&&

$$

WYZ002-051900-
/O.CON.KRIW.WW.Y.0036.000000T0000Z-161205T1900Z/
ABSAROKA MOUNTAINS-
626 AM MST MON DEC 5 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST
TODAY...

* TIMING...SNOW ACROSS NORTHWEST WYOMING WILL BE LIGHT TO
  MODERATE THROUGH EARLY THE EARLY MORNING HOURS BEFORE
  DECREASING IN INTENSITY THROUGH THE REST OF THE MORNING HOURS.

* STORM TOTAL SNOWFALL...4 TO 12 INCHES.

* SNOWFALL REPORTS THROUGH 8 PM SUNDAY...6 TO 10 INCHES FROM
  PAHASKA TO BEARTOOTH PASS. 2 TO 6 INCHES ON THE SOUTHERN END
  OF THE RANGE.

* WIND AND VISIBILITY...WEST TO SOUTHWEST WIND 20 TO 30 MPH WITH
  GUSTS 40 MPH WILL CAUSE AREAS OF BLOWING AND DRIFTING SNOW...
  WITH VISIBILITY LIMITED TO ONE HALF MILE OR LESS AT TIMES.

* IMPACTS...ROADS MAY BECOME SLICK...AND SNOW PACKED WITH
  LIMITED VISIBILITY AT TIMES. PEOPLE PLANNING OUTDOOR
  ACTIVITIES SHOULD BE PREPARED FOR ADVERSE WINTER WEATHER
  CONDITIONS AND TAKE THE PROPER PRECAUTIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS PERIODS
OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR
SNOW COVERED AND SLICK ROADS WITH LIMITED VISIBILITIES. SLOW
DOWN... AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION. CHECK THE
LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 5 1 1.

&&

$$

WYZ009>011-051900-
/O.CON.KRIW.WW.Y.0036.000000T0000Z-161205T1900Z/
BIGHORN MOUNTAINS SOUTHEAST-NORTHEAST JOHNSON COUNTY-
SOUTHEAST JOHNSON COUNTY-
INCLUDING THE CITIES OF...BUFFALO...KAYCEE
626 AM MST MON DEC 5 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST
TODAY...

* TIMING...LIGHT TO OCCASIONALLY MODERATE SNOW ACROSS NORTHERN
  WYOMING IS EXPECTED TO DEVELOP AND CONTINUE THIS MORNING UNTIL
  AROUND NOON.

* TOTAL SNOWFALL...POSSIBLE 5 TO 10 INCHES IN THE BIGHORN
  MOUNTAINS WITH 2 TO 4 INCHES FROM BUFFALO TO KAYCEE.

* WIND AND VISIBILITY...NORTH TO NORTHWEST WIND INCREASING TO 15
  TO 25 MPH WITH GUSTS 40 MPH MAY CAUSE AREAS OF BLOWING AND
  DRIFTING SNOW...WITH VISIBILITY DOWN TO A HALF MILE OR LESS AT
  TIMES ON POWDER RIVER PASS AND ALONG INTERSTATE HIGHWAYS 90
  AND 25.

* IMPACTS...ROADS MAY BECOME SLICK...AND SNOW PACKED WITH
  LIMITED VISIBILITY AT TIMES. PEOPLE PLANNING OUTDOOR
  ACTIVITIES SHOULD BE PREPARED FOR ADVERSE WINTER WEATHER
  CONDITIONS AND TAKE THE PROPER PRECAUTIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS PERIODS
OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR
SNOW COVERED AND SLICK ROADS WITH LIMITED VISIBILITIES. SLOW
DOWN... AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION. CHECK THE
LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 5 1 1.

&&

$$

WYZ003>008-051900-
/O.CON.KRIW.WW.Y.0036.000000T0000Z-161205T1900Z/
CODY FOOTHILLS-NORTH BIG HORN BASIN-SOUTHWEST BIG HORN BASIN-
SOUTHEAST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS-
BIGHORN MOUNTAINS WEST-
INCLUDING THE CITIES OF...CODY...MEETEETSE...THERMOPOLIS...
WORLAND
626 AM MST MON DEC 5 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST
TODAY...

* TIMING...LIGHT TO OCCASIONALLY MODERATE SNOW WILL DEVELOP AND
  CONTINUE THROUGH THE EARLY MORNING HOURS ACROSS THE BIGHORN
  BASIN AND SURROUNDING MOUNTAINS...CONTINUING UNTIL AROUND
  NOON.

* TOTAL SNOWFALL...POSSIBLE 5 TO 10 INCHES IN THE BIGHORN
  MOUNTAINS... 2 TO 5 INCHES IN THE CODY FOOTHILLS WITH LOCALLY
  HIGHER AMOUNTS AROUND MEETEETSE WITH 1 TO 4 INCHES ACROSS THE
  BIGHORN BASIN.

* WIND AND VISIBILITY...NORTH TO NORTHWEST WIND INCREASING TO 15
  TO 25 MPH WITH GUSTS 35 MPH MAY CAUSE AREAS OF BLOWING AND
  DRIFTING SNOW...WITH VISIBILITY LIMITED TO ONE HALF MILE OR
  LESS AT TIMES ON POWDER RIVER PASS.

* IMPACTS...ROADS MAY BECOME SLICK...AND SNOW PACKED WITH
  LIMITED VISIBILITY AT TIMES. PEOPLE PLANNING OUTDOOR
  ACTIVITIES SHOULD BE PREPARED FOR ADVERSE WINTER WEATHER
  CONDITIONS AND TAKE THE PROPER PRECAUTIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS PERIODS
OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR
SNOW COVERED AND SLICK ROADS WITH LIMITED VISIBILITIES. SLOW
DOWN... AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION. CHECK THE
LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 5 1 1.

&&

$$

WYZ028>030-051900-
/O.CON.KRIW.WW.Y.0036.000000T0000Z-161205T1900Z/
ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY-
INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER
626 AM MST MON DEC 5 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST
TODAY...

* TIMING...SNOW WILL DEVELOP ACROSS SOUTHWEST WYOMING THIS
  MORNING...CONTINUING UNTIL AROUND NOON...

* TOTAL SNOWFALL...POSSIBLE 1 TO 4 INCHES.

* WIND AND VISIBILITY...WEST TO SOUTHWEST WIND 20 TO 25 MPH WITH
  GUSTS 40 MPH MAY CAUSE AREAS OF BLOWING AND DRIFTING SNOW...
  WITH VISIBILITY LIMITED TO A QUARTER MILE OR LESS AT TIMES
  ALONG INTERSTATE HIGHWAY 80.

* IMPACTS...ROADS MAY BECOME SLICK...AND SNOW PACKED WITH
  LIMITED VISIBILITY AT TIMES. PEOPLE PLANNING OUTDOOR
  ACTIVITIES SHOULD BE PREPARED FOR ADVERSE WINTER WEATHER
  CONDITIONS AND TAKE THE PROPER PRECAUTIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS PERIODS
OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR
SNOW COVERED AND SLICK ROADS WITH LIMITED VISIBILITIES. SLOW
DOWN... AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION. CHECK THE
LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 5 1 1.

&&

$$


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