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

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WWUS45 KRIW 241256
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
656 AM MDT TUE MAR 24 2015

...SIGNIFICANT SNOWFALL OVER THE WESTERN AND NORTHERN MOUNTAINS
LATE THIS MORNING THROUGH WEDNESDAY MORNING...

.A FAST MOVING PACIFIC STORM SYSTEM...WILL BRING SIGNIFICANT SNOW
AND WIND TO THE WESTERN MOUNTAINS FROM LATE THIS MORNING INTO
TONIGHT. THIS SYSTEM WILL ALSO BRING HEAVY SNOW TO THE BIGHORN
MOUNTAINS TONIGHT INTO WEDNESDAY MORNING.

WYZ012-250000-
/O.EXT.KRIW.WW.Y.0013.150324T1500Z-150325T0900Z/
TETON AND GROS VENTRE MOUNTAINS-
656 AM MDT TUE MAR 24 2015

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 3 AM MDT
WEDNESDAY...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 3 AM MDT
WEDNESDAY.

* SUMMARY AND TIMING...SNOW WILL DEVELOP QUICKLY AFTER 9 AM THIS
  MORNING AND CONTINUE THROUGH THE EARLY MORNING HOURS WEDNESDAY. THE
  HEAVIEST SNOWFALL IS EXPECTED TO OCCUR BETWEEN NOON AND 8 PM.

* SNOW ACCUMULATIONS...5 TO 9 INCHES.

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 35 MPH WITH GUSTS OF
  45 TO 55 MPH AT THE HIGHER ELEVATIONS WILL RESULT IN
  CONSIDERABLE BLOWING AND DRIFTING SNOW. NEAR WHITEOUT
  CONDITIONS COULD OCCUR DUE TO A COMBINATION OF HEAVY SNOW AND
  BLOWING SNOW.

* IMPACTS...TETON AND TOGWOTEE PASSES WILL BECOME SLICK AND SNOW
  COVERED...WITH SEVERELY REDUCED VISIBILITY AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ001-250000-
/O.CON.KRIW.WW.Y.0013.150324T1800Z-150325T0900Z/
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
656 AM MDT TUE MAR 24 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
3 AM MDT WEDNESDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
3 AM MDT WEDNESDAY.

* SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP BY MID TO LATE
  MORNING...AND THEN PICK UP IN INTENSITY DURING THE EARLY
  AFTERNOON. SNOW...HEAVY AT TIMES...WILL THEN CONTINUE THROUGH
  LATE TONIGHT.

* SNOW ACCUMULATIONS...5 TO 7 INCHES...EXCEPT 1 TO 4 INCHES
  AROUND MAMMOTH.

* WIND AND VISIBILITY...WEST TO SOUTHWEST 10 TO 20 MPH WITH SOME
  GUSTS OF 25 TO 30 MPH WILL CAUSE SOME BLOWING AND DRIFTING
  SNOW. VISIBILITY WILL BE NEAR A TENTH OF A MILE AT TIMES IN
  HEAVIER SNOW AND BLOWING SNOW.

* IMPACTS...ROADWAYS IN AND AROUND MAMMOTH WILL BECOME SLICK AND
  SNOW COVERED ALONG WITH LOWERED VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ002-250000-
/O.CON.KRIW.WW.Y.0013.150324T1800Z-150325T0900Z/
ABSAROKA MOUNTAINS-
656 AM MDT TUE MAR 24 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
3 AM MDT WEDNESDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
3 AM MDT WEDNESDAY.

* SUMMARY AND TIMING...LIGHT SNOW WILL BE DEVELOPING BY 12 NOON
  TUESDAY...THEN PICKING UP IN INTENSITY DURING THE EARLY
  AFTERNOON HOURS. SNOW WILL CONTINUE...HEAVY AT TIMES...FOR THE
  REST OF THE TUESDAY THROUGH 3 AM TONIGHT.

* SNOW ACCUMULATIONS...5 TO 8 INCHES

* WIND AND VISIBILITY...WEST 15 TO 25 MPH WITH SOME GUSTS OF 30
  TO 40 MPH WILL RESULT IN BLOWING AND DRIFTING SNOW...WHICH
  WILL LOWER THE VISIBILITY TO LESS THAN ONE QUARTER OF A MILE
  AT TIMES.

* IMPACTS...CHIEF JOSEPH HIGHWAY AND OTHER HIGHWAYS WILL BECOME
  SLICK AND SNOW COVERED ALONG WITH LOWERED VISIBILITY DUE TO
  CONSIDERABLE BLOWING AND DRIFTING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ024-250000-
/O.CON.KRIW.WW.Y.0013.150324T1800Z-150325T0900Z/
SALT RIVER AND WYOMING RANGES-
656 AM MDT TUE MAR 24 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
3 AM MDT WEDNESDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
3 AM MDT WEDNESDAY.

* SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP BY MID TO LATE
  MORNING...AND THEN PICK UP IN INTENSITY DURING THE EARLY
  AFTERNOON. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR BETWEEN
  NOON AND 8 PM.

* SNOW ACCUMULATIONS...5 TO 8 INCHES

* WIND AND VISIBILITY...WEST WINDS OF 25 TO 35 MPH WITH GUSTS OF
  40 TO 50 MPH AT THE HIGHER ELEVATIONS WILL RESULT IN
  CONSIDERABLE BLOWING AND DRIFTING SNOW. NEAR WHITEOUT
  CONDITIONS COULD OCCUR DUE TO A COMBINATION OF HEAVY SNOW AND
  BLOWING SNOW.

* IMPACTS...MOUNTAIN PASSES WILL BECOME SLICK AND SNOW COVERED
  WITH SEVERELY REDUCED VISIBILITY AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

WYZ008-009-250000-
/O.CON.KRIW.WW.Y.0013.150325T0000Z-150325T1500Z/
BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST-
656 AM MDT TUE MAR 24 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO 9 AM MDT WEDNESDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO 9 AM MDT WEDNESDAY.

* SUMMARY AND TIMING...SOME SNOW WILL OCCUR ACROSS THE BIGHORN
  MOUNTAINS TODAY...BUT A MORE WIDESPREAD AND HEAVIER SNOW WILL
  DEVELOP THIS EVENING...AND LAST THROUGH WEDNESDAY MORNING.

* SNOW ACCUMULATIONS...6 TO 10 INCHES.

* WIND AND VISIBILITY...NORTHWEST 20 TO 30 MPH WITH GUSTS OF 30
  TO 40 MPH WILL RESULTING IN CONSIDERABLE BLOWING AND DRIFTING
  SNOW. VISIBILITY WILL BE NEAR A TENTH OF A MILE AT TIMES DUE
  SNOW AND BLOWING SNOW.

* IMPACTS...GRANITE AND POWDER RIVER PASSES WILL BE SLICK AND
  SNOW COVERED WITH SEVERELY REDUCED VISIBILITY AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$








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