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

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WWUS45 KRIW 100853
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
153 AM MST TUE JAN 10 2017

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

...WINTER STORM WATCH TONIGHT THROUGH WEDNESDAY NIGHT FOR THE
CODY FOOTHILLS AND NORTHERN BIGHORN BASIN...

.SEVERAL WEATHER SYSTEMS WILL IMPACT THE WEST THROUGH WEDNESDAY
NIGHT BRINGING MULTIPLE PERIODS OF MODERATE TO HEAVY SNOW AND
WIND. THE POTENTIAL FOR HEAVY SNOW WILL ALSO MOVE INTO PARTS OF
NORTH CENTRAL WYOMING TUESDAY NIGHT THROUGH WEDNESDAY NIGHT.

WYZ012-102300-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T1200Z/
TETON AND GROS VENTRE MOUNTAINS-
153 AM MST TUE JAN 10 2017

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

* TIMING...SNOW WILL CONTINUE AT VARYING INTENSITIES THROUGH THE
  PERIOD. THE HEAVIEST SNOW IS EXPECTED THIS MORNING AND
  ESPECIALLY TONIGHT THROUGH WEDNESDAY MORNING.

* SNOWFALL SO FAR...1 TO 2 FEET WITH LOCAL AMOUNTS TO 30 INCHES
  THROUGH 1 PM MONDAY.

* TOTAL SNOW...2 TO 4 FEET.

* 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 VERY HIGH DURING THIS
  EVENT FOR BACKCOUNTRY TRAVELLERS AND EVEN THOSE OVER TETON
  PASS. CHECK ROAD CONDITIONS TO SEE IF ROADS REMAIN CLOSED.

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.

&&

$$

WYZ001-102300-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T1200Z/
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
153 AM MST TUE JAN 10 2017

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

* TIMING...SNOW WILL CONTINUE AT VARYING INTENSITIES THROUGH THE
  PERIOD. THE HEAVIEST SNOW IS EXPECTED THIS MORNING AND
  ESPECIALLY TONIGHT THROUGH WEDNESDAY MORNING.

* SNOWFALL SO FAR...8 TO 16 INCHES IN THE SOUTH WITH 3 TO 6
  INCHES IN THE NORTH THROUGH 11 AM MONDAY

* TOTAL SNOW...1 TO 3 FEET IN THE MOUNTAINS; 6 TO 12 INCHES ACROSS
  THE LOWER ELEVATIONS.

* 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.

&&

$$

WYZ002-102300-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T1200Z/
ABSAROKA MOUNTAINS-
153 AM MST TUE JAN 10 2017

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

* TIMING...SNOW WILL CONTINUE AT VARYING INTENSITIES THROUGH THE
  PERIOD. THE HEAVIEST SNOW IS EXPECTED THIS MORNING AND TONIGHT
  THROUGH WEDNESDAY MORNING.

* SNOWFALL SO FAR...3 TO 10 INCHES THROUGH 11 AM MONDAY.

* TOTAL SNOW...18 TO 30 INCHES IN THE SOUTHWEST MOUNTAINS WITH 4
  TO 12 INCHES ELSEWHERE.

* 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.

&&

$$

WYZ024-102300-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T1200Z/
SALT RIVER AND WYOMING RANGES-
153 AM MST TUE JAN 10 2017

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

* TIMING...SNOW WILL CONTINUE AT VARYING INTENSITIES THROUGH THE
  PERIOD. THE HEAVIEST SNOW IS EXPECTED THIS MORNING AND
  ESPECIALLY TONIGHT THROUGH WEDNESDAY MORNING.

* SNOWFALL SO FAR...1 TO 2 FEET HAS FALLEN THROUGH 11 AM MONDAY.

* TOTAL SNOW...2 TO 4 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.

&&

$$

WYZ014-015-102300-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T1200Z/
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
153 AM MST TUE JAN 10 2017

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

* TIMING...SNOW WILL CONTINUE AT VARYING INTENSITIES THROUGH THE
  PERIOD. THE HEAVIEST SNOW IS EXPECTED THIS MORNING AND
  ESPECIALLY TONIGHT THROUGH WEDNESDAY MORNING.

* SNOWFALL SO FAR...6 TO 18 INCHES THROUGH 1 PM MONDAY.

* TOTAL SNOW...18 TO 36 INCHES ON THE WEST SIDE OF THE WIND RIVER
  MOUNTAINS; 12 TO 24 INCHES ON THE EAST SLOPE OF THE WIND RIVER
  MOUNTAINS.

* 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.

&&

$$

WYZ013-102300-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T1200Z/
JACKSON HOLE-
INCLUDING THE CITY OF...JACKSON
153 AM MST TUE JAN 10 2017

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

* TIMING...SNOW WILL CONTINUE AT VARYING INTENSITIES THROUGH THE
  PERIOD. THE HEAVIEST SNOW IS EXPECTED THIS MORNING AND
  ESPECIALLY TONIGHT THROUGH WEDNESDAY MORNING.

* SNOWFALL SO FAR...8 TO 20 INCHES FELL THROUGH 11 AM MONDAY.

* TOTAL SNOW...18 TO 36 INCHES ACROSS THE JACKSON VALLEY WITH THE
  HEAVIER AMOUNTS TOWARDS WILSON...MOOSE AND MORAN.

* WIND AND VISIBILITY...SOUTHWEST WIND INCREASING TO 15 TO 25 MPH
  WITH GUSTS TO 40 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.

&&

$$

WYZ025-026-102300-
/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
153 AM MST TUE JAN 10 2017

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

* TIMING...SNOW WILL CONTINUE AT VARYING INTENSITIES THROUGH THE
  PERIOD. THE HEAVIEST SNOW IS EXPECTED THIS MORNING AND
  ESPECIALLY TONIGHT THROUGH WEDNESDAY MORNING.

* SNOWFALL SO FAR...3 TO 12 INCHES THROUGH 11 AM MONDAY.

* TOTAL SNOW...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.

* 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.

&&

$$

WYZ027-102300-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T1200Z/
SOUTH LINCOLN COUNTY-
INCLUDING THE CITIES OF...KEMMERER...COKEVILLE
153 AM MST TUE JAN 10 2017

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

* TIMING...SNOW WILL CONTINUE AT VARYING INTENSITIES THROUGH THE
  PERIOD. THE HEAVIEST SNOW IS EXPECTED THIS MORNING AND
  ESPECIALLY TONIGHT THROUGH WEDNESDAY MORNING.

* SNOWFALL SO FAR...4 TO 6 INCHES THROUGH NOON MONDAY.

* TOTAL SNOW...5 TO 8 INCHES EAST OF THE BEAR RIVER DIVIDE WITH
  10 TO 20 INCHES WEST OF THE BEAR RIVER DIVIDE AND COKEVILLE.

* 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.

&&

$$

WYZ023-102300-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T1200Z/
STAR VALLEY-
INCLUDING THE CITIES OF...AFTON...ALPINE...STAR VALLEY RANCH...
THAYNE
153 AM MST TUE JAN 10 2017

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

* TIMING...SNOW WILL CONTINUE AT VARYING INTENSITIES THROUGH THE
  PERIOD. THE HEAVIEST SNOW IS EXPECTED THIS MORNING AND
  ESPECIALLY TONIGHT THROUGH WEDNESDAY MORNING.

* SNOWFALL SO FAR...3 TO 9 INCHES THROUGH 11 AM MONDAY.

* TOTAL SNOW...1 TO 2 FEET 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.

&&

$$

WYZ003-102300-
/O.CON.KRIW.WS.A.0003.170111T0000Z-170112T1200Z/
CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
153 AM MST TUE JAN 10 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS AFTERNOON
THROUGH LATE WEDNESDAY NIGHT...

* TIMING...LIGHT SNOW MAY BEGIN LATE THIS AFTERNOON WITH HEAVIER
  SNOW POSSIBLE FROM TONIGHT THROUGH WEDNESDAY NIGHT.

* SNOWFALL...6 TO 12 INCHES POSSIBLE WITH LOCALLY HIGHER AMOUNTS
  AROUND WAPITI AND PAHASKA.

* VISIBILITY...UNDER ONE QUARTER MILE AT TIMES IN HEAVY SNOW.

* MAIN IMPACT...ROADS WILL BECOME SLICK AND VISIBILITIES WILL BE
  SHARPLY REDUCED.

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.

&&

$$

WYZ004-102300-
/O.CON.KRIW.WS.A.0003.170111T0000Z-170112T1200Z/
NORTH BIG HORN BASIN-
153 AM MST TUE JAN 10 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS AFTERNOON
THROUGH LATE WEDNESDAY NIGHT...

* TIMING...LIGHT SNOW MAY BEGIN LATE THIS AFTERNOON WITH HEAVIER
  SNOW POSSIBLE FROM TONIGHT THROUGH WEDNESDAY NIGHT.

* SNOWFALL...4 TO 8 INCHES POSSIBLE.

* VISIBILITY...UNDER ONE QUARTER MILE AT TIMES IN HEAVY SNOW.

* MAIN IMPACT...ROADS WILL BECOME SLICK AND VISIBILITIES WILL BE
  SHARPLY REDUCED.

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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