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

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WWUS45 KRIW 120220
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
720 PM MST WED JAN 11 2017

...LONG DURATION WINTER STORM WINDING DOWN THIS EVENING...

WYZ012-120600-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T0600Z/
TETON AND GROS VENTRE MOUNTAINS-
720 PM MST WED JAN 11 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* TIMING...AREAS OF LIGHT TO MODERATE SNOW WILL CONTINUE THIS
  EVENING. THE SNOW WILL END LATE TONIGHT.

* SNOWFALL SO FAR...20 TO 50 INCHES WITH ANOTHER 2 TO 6 INCHES
  POSSIBLE.

* STORM TOTAL SNOW...2 TO 5 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 IF YOU MUST TRAVEL.

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.

&&

$$

WYZ001-120600-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T0600Z/
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
720 PM MST WED JAN 11 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* TIMING...LIGHT TO MODERATE SNOW THIS EVENING. THEN SNOW WILL
  TAPER OFF AFTER MIDNIGHT.

* SNOWFALL SO FAR...10 TO 36 INCHES WITH ANOTHER 2 TO 4 INCHES
  POSSIBLE THROUGH THIS EVENING.

* TOTAL SNOW...20 TO 44 INCHES IN THE MOUNTAINS WITH 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.

&&

$$

WYZ002-120600-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T0600Z/
ABSAROKA MOUNTAINS-
720 PM MST WED JAN 11 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* TIMING...LIGHT TO MODERATE SNOW THIS EVENING. THE SNOW WILL
  TAPER OFF AFTER MIDNIGHT.

* SNOWFALL SO FAR...9 TO 20 INCHES WITH ANOTHER 1 TO 4 INCHES
  POSSIBLE THROUGH THIS EVENING.

* TOTAL SNOW...18 TO 34 INCHES IN THE SOUTHWEST MOUNTAINS WITH 6
  TO 18 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.

&&

$$

WYZ024-120600-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T0600Z/
SALT RIVER AND WYOMING RANGES-
720 PM MST WED JAN 11 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* TIMING...MAINLY LIGHT SNOW WILL OCCUR TONIGHT. THE SNOW WILL
  TAPER OFF AFTER MIDNIGHT.

* SNOWFALL SO FAR...25 TO 50 INCHES WITH ANOTHER 2 TO 6 INCHES
  THROUGH THIS EVENING.

* STORM TOTAL SNOW...3 TO 5 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.

&&

$$

WYZ014-015-120600-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T0600Z/
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
720 PM MST WED JAN 11 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* TIMING...MAINLY LIGHT SNOW TONIGHT. THE SNOW WILL TAPER OFF
  AFTER MIDNIGHT.

* SNOWFALL SO FAR...10 TO 36 INCHES WITH ANOTHER 1 TO 3 INCHES
  POSSIBLE THROUGH THIS EVENING.

* TOTAL SNOW...2 TO 3 FEET ON THE WEST SIDE OF THE WIND RIVER
  MOUNTAINS AND AROUND SOUTH PASS WITH 12 TO 24 INCHES ON THE
  EAST SLOPE OF THE WIND RIVER MOUNTAINS. A FEW SPOTS COULD TOP
  40 INCHES.

* WIND AND VISIBILITY...SOUTHWEST WIND 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. SOUTH PASS REMAINS CLOSED AS OF
  700 PM THIS EVENING.

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.

&&

$$

WYZ013-120600-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T0600Z/
JACKSON HOLE-
INCLUDING THE CITY OF...JACKSON
720 PM MST WED JAN 11 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* TIMING...MAINLY LIGHT SNOW AT TIMES TONIGHT.

* SNOWFALL SO FAR...AROUND 12 INCHES IN THE JACKSON AREA WITH 20
  TO 32 INCHES NORTH OF JACKSON AND AROUND 40 INCHES NEAR WILSON.
  ANOTHER 1 TO 4 INCHES OF SNOW WILL BE POSSIBLE THROUGH THIS
  EVENING FROM MOOSE TO MORAN JUNCTION.

* TOTAL SNOW...18 TO 36 INCHES ACROSS THE JACKSON VALLEY WITH
  THE HEAVIER AMOUNTS TOWARDS WILSON...MOOSE AND MORAN. A FEW
  SPOTS COULD TOP 44 INCHES...ESPECIALLY NEAR WILSON.

* WIND AND VISIBILITY...SOUTHWEST WIND 15 TO 25 MPH WITH GUSTS
  TO 40 TO 50 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. THE HIGHWAY BETWEEN
  MOOSE AND MORAN JUNCTION REMAINS CLOSED AS OF 7 PM THIS EVENING.
  CHECK THE LATEST ROAD REPORT.

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.

&&

$$

WYZ025-026-120600-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T0600Z/
UPPER GREEN RIVER BASIN FOOTHILLS-UPPER GREEN RIVER BASIN-
INCLUDING THE CITIES OF...PINEDALE...LA BARGE...BIG PINEY...
FARSON
720 PM MST WED JAN 11 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* TIMING...LIGHT SNOW WILL BE ENDING BY LATE EVENING.

* SNOWFALL SO FAR...12 TO 24 INCHES. ANOTHER INCH WILL BE
  POSSIBLE THROUGH THIS EVENING.

* TOTAL SNOW...18 TO 36 INCHES THE HEAVIEST AMOUNTS WILL BE FROM
  NORTH OF DANIEL TO BONDURANT.

* WIND AND VISIBILITY...SOUTHWEST WIND 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.

&&

$$

WYZ027-120600-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T0600Z/
SOUTH LINCOLN COUNTY-
INCLUDING THE CITIES OF...KEMMERER...COKEVILLE
720 PM MST WED JAN 11 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* TIMING...LIGHT SNOW WILL OCCUR THIS EVENING. THEN THE SNOW ENDS
  AFTER MIDNIGHT.

* SNOWFALL SO FAR...6 TO 14 INCHES WITH ANOTHER INCH OR TWO
  POSSIBLE THROUGH THIS EVENING.

* TOTAL SNOW...8 TO 20 INCHES.

* WIND AND VISIBILITY...SOUTHWEST WIND 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.

&&

$$

WYZ023-120600-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T0600Z/
STAR VALLEY-
INCLUDING THE CITIES OF...AFTON...ALPINE...STAR VALLEY RANCH...
THAYNE
720 PM MST WED JAN 11 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* TIMING...LIGHT SNOW TO OCCUR THIS EVENING. THE SNOW WILL END
  AFTER MIDNIGHT.

* SNOWFALL SO FAR...10 TO 26 INCHES WITH ANOTHER 1 INCH MAY OCCUR
  THROUGH THIS EVENING.

* TOTAL SNOW...1 TO 2 FEET WITH THE HEAVIER AMOUNTS TOWARDS THE
  NORTH END OF THE VALLEY. A FEW SPOTS COULD TOP 28 INCHES.

* 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.

&&

$$

WYZ003-120600-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T0600Z/
CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
720 PM MST WED JAN 11 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* TIMING...MAINLY LIGHT SNOW WILL OCCUR THIS EVENING.

* SNOWFALL SO FAR...8 TO 12 INCHES AROUND CODY.

* SNOWFALL TOTALS...9 TO 14 INCHES.

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

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.

&&

$$

WYZ004-120600-
/O.CON.KRIW.WS.W.0002.000000T0000Z-170112T0600Z/
NORTH BIG HORN BASIN-
720 PM MST WED JAN 11 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* TIMING...PERIODS OF LIGHT SNOW THIS EVENING. THE SNOW WILL END
  AFTER MIDNIGHT.

* TOTAL SNOWFALL...2 TO 6 INCHES ACROSS THE SOUTHERN PORTION OF
  THE BIG HORN BASIN WITH 8 TO 15 INCHES FROM ABOUT POWELL TO
  LOVELL.

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

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

* OTHER IMPACTS...GUSTY WIND DURING THE EARLY PART OF THE STORM
  WILL CREATE SOME BLOWING SNOW AND BITTER COLD WIND CHILLS AS
  TEMPERATURES DROP INTO THE SINGLE DIGITS.

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.

&&

$$

WYZ016-120600-
/O.CON.KRIW.WW.Y.0003.000000T0000Z-170112T0600Z/
UPPER WIND RIVER BASIN-
INCLUDING THE CITY OF...DUBOIS
720 PM MST WED JAN 11 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* TIMING...MAINLY LIGHT SNOW WILL OCCUR TONIGHT. THE SNOW WILL END
  AFTER MIDNIGHT.

* SNOWFALL...3 TO 6 INCHES WITH LOCALLY HIGHER AMOUNTS ABOVE
  DUBOIS.

* WIND AND VISIBILITY...WEST 2O TO 30 MPH WITH OCCASIONAL GUSTS
  OVER 40 MPH CREATING AREAS OF BLOWING AND DRIFTING SNOW AND
  SHARPLY REDUCED VISIBILITIES UNDER ONE HALF MILE AT TIMES.

* MAIN IMPACT...ROADS WILL BE SLICK AND SNOW COVERED WITH
  LIMITED VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE SEVERELY LIMITED DUE TO STRONG WINDS
COMBINED WITH SNOW AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...
ESPECIALLY IN OPEN AREAS. ROADS WILL BE SLICK AND SNOW COVERED.
CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING
5 1 1.

&&

$$



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