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

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WWUS45 KRIW 091338
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
638 AM MST MON JAN 9 2017

...MAJOR LONG DURATION WINTER STORM TO IMPACT THE WEST THROUGH
WEDNESDAY NIGHT...

.SEVERAL WEATHER SYSTEMS WILL IMPACT THE WEST THROUGH WEDNESDAY
NIGHT BRINGING MULTIPLE PERIODS OF MODERATE TO HEAVY SNOW AND
WIND. THE MOST LIKELY TIMES FOR THE HEAVIEST SNOW AT THIS TIME
APPEAR TO BE TODAY...TUESDAY MORNING AND AGAIN LATE TUESDAY NIGHT
THROUGH WEDNESDAY.

WYZ012-092200-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T1200Z/
TETON AND GROS VENTRE MOUNTAINS-
638 AM MST MON JAN 9 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST
THURSDAY...

* TIMING...PERIODS OF MODERATE TO HEAVY SNOW EXPECTED THROUGH
  MUCH OF TODAY. ANOTHER ROUND OF HEAVY SNOW IS EXPECTED
  POSSIBLE TUESDAY MORNING AND AGAIN LATE TUESDAY NIGHT THROUGH
  WEDNESDAY WITH LIGHTER SNOW BETWEEN THESE TIMES.

* SNOWFALL SO FAR...10 TO 20 INCHES WITH 9 TO 18 INCHES
  OVERNIGHT.

* SNOW TOTALS...2 TO 4 FEET BY LATE WEDNESDAY NIGHT.

* WIND AND VISIBILITY...WEST TO SOUTHWEST WIND 25 TO 35 MPH WITH
  GUSTS OVER 50 MPH AT PASS AND PEAK LEVEL. VISIBILITY WILL BE
  REDUCED TO UNDER ONE QUARTER MILE AT TIMES ALONG WITH BLOWING
  AND DRIFTING SNOW.

* MAIN IMPACT...ROADS WILL BE SLICK AND SNOW PACKED AND
  VISIBILITIES WILL BE UNDER ONE QUARTER MILE AT TIMES IN HEAVY
  SNOW. AVALANCHE DANGER WILL ALSO BE INCREASING DURING THIS
  EVENT FOR BACKCOUNTRY TRAVELLERS AND EVEN THOSE OVER TETON
  PASS.

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.

&&

$$

WYZ001-092200-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T1200Z/
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
638 AM MST MON JAN 9 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST
THURSDAY...

* TIMING...PERIODS OF MODERATE TO HEAVY SNOW EXPECTED THROUGH
  MUCH OF TODAY. ANOTHER ROUND OF HEAVY SNOW IS EXPECTED
  POSSIBLE TUESDAY MORNING AND AGAIN LATE TUESDAY NIGHT THROUGH
  WEDNESDAY WITH LIGHTER SNOW BETWEEN THESE TIMES.

* SNOWFALL SO FAR...8 TO 16 INCHES IN THE SOUTH OVERNIGHT.

* SNOW TOTALS...1 TO 2 FEET IN THE MOUNTAINS WITH 6 TO 12 INCHES
  ACROSS THE LOWER ELEVATIONS BY LATE WEDNESDAY NIGHT.

* WIND AND VISIBILITY...WEST TO SOUTHWEST 15 TO 25 MPH WITH
  GUSTS OVER 40 MPH IN THE MOUNTAINS PRODUCING AREAS OF BLOWING
  AND DRIFTING SNOW. VISIBILITIES UNDER ONE QUARTER MILE AT
  TIMES IN HEAVIER SNOW PERIODS.

* MAIN IMPACT...ROADS WILL BE SLICK AND SNOW PACKED. BACKCOUNTRY
  TRAVEL WILL BE HAMPERED.

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.

&&

$$

WYZ002-092200-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T1200Z/
ABSAROKA MOUNTAINS-
638 AM MST MON JAN 9 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST
THURSDAY...

* TIMING...PERIODS OF MODERATE TO HEAVY SNOW EXPECTED THROUGH
  MUCH OF TODAY. ANOTHER ROUND OF HEAVY SNOW IS EXPECTED
  POSSIBLE TUESDAY MORNING AND AGAIN LATE TUESDAY NIGHT THROUGH
  WEDNESDAY WITH LIGHTER SNOW BETWEEN THESE TIMES.

* SNOWFALL SO FAR...3 TO 8 INCHES.

* SNOW TOTALS...18 TO 30 INCHES IN THE SOUTHWEST MOUNTAINS WITH
  4 TO 12 INCHES ELSEWHERE BY LATE WEDNESDAY NIGHT.

* WIND AND VISIBILITY...WEST TO SOUTHWEST 20 TO 30 MPH WITH
  GUSTS OVER 45 MPH IN THE MOUNTAINS PRODUCING AREAS OF BLOWING
  AND DRIFTING SNOW. VISIBILITIES UNDER ONE QUARTER MILE AT
  TIMES IN HEAVIER SNOW PERIODS.

* MAIN IMPACT...ROADS AND HIGHWAYS WILL BECOME SLICK AND SNOW
  PACKED.

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.

&&

$$

WYZ024-092200-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T1200Z/
SALT RIVER AND WYOMING RANGES-
638 AM MST MON JAN 9 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST
THURSDAY...

* TIMING...PERIODS OF MODERATE TO HEAVY SNOW EXPECTED THROUGH
  MUCH OF TODAY. ANOTHER ROUND OF HEAVY SNOW IS EXPECTED
  POSSIBLE TUESDAY MORNING AND AGAIN LATE TUESDAY NIGHT THROUGH
  WEDNESDAY WITH LIGHTER SNOW BETWEEN THESE TIMES.

* SNOWFALL SO FAR...6 TO 12 INCHES HAS FALLEN OVERNIGHT WITH LOCAL
  AMOUNTS OVER 15 INCHES.

* SNOW TOTALS...2 TO 3 FEET BY LATE WEDNESDAY NIGHT WITH LOCAL
  AMOUNTS TO 3 AND A HALF FEET.

* WIND AND VISIBILITY...WEST TO SOUTHWEST WIND 25 TO 35 MPH WITH
  GUSTS 40 TO 50 MPH AT PASS AND PEAK LEVEL PRODUCING
  VISIBILITIES TO UNDER ONE QUARTER MILE AT TIMES ALONG WITH
  BLOWING AND DRIFTING SNOW.

* MAIN IMPACT...ROADS BE SLICK AND SNOW PACKED AND VISIBILITIES
  WILL BE UNDER ONE QUARTER MILE AT TIMES IN HEAVY SNOW.
  AVALANCHE DANGER WILL ALSO BE INCREASING DURING THIS EVENT FOR
  BACKCOUNTRY TRAVELLERS.

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.

&&

$$

WYZ014-015-092200-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T1200Z/
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
638 AM MST MON JAN 9 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST
THURSDAY...

* TIMING...PERIODS OF MODERATE TO HEAVY SNOW EXPECTED THROUGH
  MUCH OF TODAY. ANOTHER ROUND OF HEAVY SNOW IS EXPECTED
  POSSIBLE TUESDAY MORNING AND AGAIN LATE TUESDAY NIGHT THROUGH
  WEDNESDAY WITH LIGHTER SNOW BETWEEN THESE TIMES.

* SNOWFALL SO FAR...5 TO 10 INCHES OVERNIGHT.

* SNOW TOTALS...18 TO 28 INCHES ON THE WEST SIDE OF THE WIND
  RIVER MOUNTAINS WITH LOCAL AMOUNTS UP TO 3 FEET WITH 8 TO 20
  INCHES ON THE EAST SLOPE OF THE WIND RIVER MOUNTAINS BY LATE
  WEDNESDAY NIGHT.

* WIND AND VISIBILITY...SOUTHWEST WIND INCREASING INCREASING TO
  25 TO 35 MPH WITH GUSTS 50 TO 60 MPH OVER SOUTH PASS PRODUCING
  VISIBILITIES TO UNDER ONE QUARTER MILE AT TIMES ALONG WITH
  BLOWING AND DRIFTING SNOW.

* MAIN IMPACT...ROADS AND HIGHWAYS WILL BECOME SLICK AND SNOW
  PACKED...INCLUDING SOUTH PASS.

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.

&&

$$

WYZ013-092200-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T1200Z/
JACKSON HOLE-
INCLUDING THE CITY OF...JACKSON
638 AM MST MON JAN 9 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST
THURSDAY...

* TIMING...PERIODS OF MODERATE TO HEAVY SNOW EXPECTED THROUGH
  MUCH OF TODAY. ANOTHER ROUND OF HEAVY SNOW IS EXPECTED
  POSSIBLE TUESDAY MORNING AND AGAIN LATE TUESDAY NIGHT THROUGH
  WEDNESDAY WITH LIGHTER SNOW BETWEEN THESE TIMES. THERE IS THE
  POSSIBILITY OF A BRIEF PERIOD OF RAIN AND SNOW MIXED EARLY
  TODAY.

* SNOWFALL SO FAR...3 TO 6 INCHES FELL OVERNIGHT.

* SNOW TOTALS...1 TO 2 FEET ACROSS THE JACKSON VALLEY WITH THE
  HEAVIER AMOUNTS TOWARDS MOOSE AND MORAN BY LATE WEDNESDAY
  NIGHT.

* WIND AND VISIBILITY...SOUTHWEST WIND INCREASING TO 15 TO 25
  MPH WITH GUSTS TO 35 MPH IN OPEN AREAS. VISIBILITIES UNDER ONE
  QUARTER MILE AT TIMES IN SNOW AND BLOWING SNOW.

* MAIN IMPACT...ROADS AND HIGHWAYS WILL BECOME SLICK AND SNOW
  PACKED WITH SHARPLY REDUCED VISIBILITY.

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.

&&

$$

WYZ025-026-092200-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T1200Z/
UPPER GREEN RIVER BASIN FOOTHILLS-UPPER GREEN RIVER BASIN-
INCLUDING THE CITIES OF...PINEDALE...LA BARGE...BIG PINEY...
FARSON
638 AM MST MON JAN 9 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST
THURSDAY...

* TIMING...PERIODS OF MODERATE TO HEAVY SNOW EXPECTED THROUGH
  MUCH OF TODAY. ANOTHER ROUND OF HEAVY SNOW IS EXPECTED
  POSSIBLE TUESDAY MORNING AND AGAIN LATE TUESDAY NIGHT THROUGH
  WEDNESDAY WITH LIGHTER SNOW BETWEEN THESE TIMES.THERE COULD BE
  A MIXTURE OF RAIN AND SNOW THIS MORNING ACROSS THE SOUTHERN
  PART OF THE AREA.

* SNOW TOTALS...5 TO 8 INCHES IN THE SOUTHERN PART OF THE AREA
  WITH 10 TO 20 INCHES IN THE NORTH HALF FROM PINEDALE AND
  DANIEL NORTHWARD TO BONDURANT BY LATE WEDNESDAY NIGHT.

* WIND AND VISIBILITY...SOUTHWEST WIND INCREASING TO 15 TO 25
  MPH WITH GUSTS TO 35 MPH IN OPEN AREAS. VISIBILITIES UNDER ONE
  QUARTER MILE AT TIMES IN SNOW AND BLOWING SNOW.

* MAIN IMPACT...ROADS AND HIGHWAYS WILL BECOME SLICK AND SNOW
  PACKED WITH SHARPLY REDUCED VISIBILITY.

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.

&&

$$

WYZ027-092200-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T1200Z/
SOUTH LINCOLN COUNTY-
INCLUDING THE CITIES OF...KEMMERER...COKEVILLE
638 AM MST MON JAN 9 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST
THURSDAY...

* TIMING...PERIODS OF MODERATE TO HEAVY SNOW EXPECTED THROUGH
  MUCH OF TODAY. ANOTHER ROUND OF HEAVY SNOW IS EXPECTED
  POSSIBLE TUESDAY MORNING AND AGAIN LATE TUESDAY NIGHT THROUGH
  WEDNESDAY WITH LIGHTER SNOW BETWEEN THESE TIMES. THERE MAY
  ALSO BE A PERIOD OF RAIN OR RAIN AND SNOW MIXED THIS MORNING.

* SNOW TOTALS...5 TO 8 INCHES EAST OF THE BEAR RIVER DIVIDE WITH
  10 TO 20 INCHES WEST OF THE BEAR RIVER DIVIDE AND TOWARDS
  COKEVILLE BY LATE WEDNESDAY NIGHT.

* WIND AND VISIBILITY...SOUTHWEST WIND INCREASING TO 15 TO 25
  MPH WITH GUSTS TO 35 MPH IN OPEN AREAS. VISIBILITIES UNDER ONE
  QUARTER MILE AT TIMES IN SNOW AND BLOWING SNOW.

* MAIN IMPACT...ROADS AND HIGHWAYS WILL BE SLICK AND SNOW PACKED
  AT TIMES WITH SHARPLY REDUCED VISIBILITY.

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.

&&

$$

WYZ023-092200-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T1200Z/
STAR VALLEY-
INCLUDING THE CITIES OF...AFTON...ALPINE...STAR VALLEY RANCH...
THAYNE
638 AM MST MON JAN 9 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST
THURSDAY...

* TIMING...PERIODS OF MODERATE TO HEAVY SNOW EXPECTED THROUGH
  MUCH OF TODAY. ANOTHER ROUND OF HEAVY SNOW IS EXPECTED
  POSSIBLE TUESDAY MORNING AND AGAIN LATE TUESDAY NIGHT THROUGH
  WEDNESDAY WITH LIGHTER SNOW BETWEEN THESE TIMES. A MIX OF RAIN
  AND SNOW OR PLAIN RAIN MAY FALL FOR A WHILE THIS MORNING IN
  LOWER PORTIONS OF THE VALLEY BEFORE CHANGING BACK TO ALL SNOW.

* SNOWFALL SO FAR...3 TO 6 INCHES STORM TOTAL BUT PERIODS OF RAIN
  OR RAIN AND SNOW MIX OVERNIGHT.

* SNOW TOTALS...1 TO 2 FEET BY LATE WEDNESDAY NIGHT WITH THE
  HEAVIER AMOUNTS TOWARDS THE NORTH END OF THE VALLEY.

* WIND AND VISIBILITY...SOUTHWEST WIND INCREASING TO 15 TO 25
  MPH WITH GUSTS TO 35 MPH IN OPEN AREAS. VISIBILITIES UNDER ONE
  QUARTER MILE AT TIMES IN SNOW AND BLOWING SNOW.

* MAIN IMPACT...ROADS AND HIGHWAYS WILL BECOME SLICK AND SNOW
  PACKED WITH SHARPLY REDUCED VISIBILITY.

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.

&&

$$


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