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Winter Storm Warning


URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
331 AM MST SUN DEC 21 2014

MTZ067-221045-
/O.CON.KBYZ.WS.W.0015.000000T0000Z-141222T1900Z/
ABSAROKA/BEARTOOTH MOUNTAINS-
INCLUDING THE LOCATIONS OF...COOKE CITY
331 AM MST SUN DEC 21 2014

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

A WINTER STORM WARNING FOR HEAVY SNOW REMAINS IN EFFECT UNTIL
NOON MST MONDAY.

* TIMING...PERIODS OF HEAVY SNOWFALL WILL IMPACT THE WEST AND
  NORTHWEST FACING SLOPES OF THE BEARTOOTH AND ABSAROKA MOUNTAINS
  TODAY INTO MONDAY MORNING. THE HEAVIEST SNOWFALL IS EXPECTED
  DURING THE DAY TODAY.

* IMPACTS...RECREATION IN THE HIGH COUNTRY WILL BE IMPACTED BY
  ACCUMULATING SNOWFALL AND GUSTY WINDS. AVALANCHE DANGER MAY
  ALSO INCREASE DUE TO THE HEAVY SNOWFALL.

* TOTAL SNOW ACCUMULATION...12 TO 20 INCHES.

* WINDS...GUSTS TO 50 MPH ON THE EXPOSED SLOPES AND RIDGES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS
EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE.

&&

$$

HTTP://WEATHER.GOV/BILLINGS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE POCATELLO ID
407 AM MST SUN DEC 21 2014

.EXPECT SNOW LEVELS TO GRADUALLY RISE TO 7000 TO 7500 FEET THIS
AFTERNOON. TOTAL SNOWFALL OF OVER A FOOT IS EXPECTED ABOVE 7500
FEET WITH 6 TO 10 INCHES UP TO 7000 FEET. SNOW SHOULD GRADUALLY
TAPER OFF TONIGHT AS SNOW LEVELS DROP ONCE AGAIN TO 4500 FEET BY
MONDAY MORNING WITH THE STORM ENDING.

ANYONE TRAVELING IN THE SOUTHEAST IDAHO MOUNTAINS TODAY AND
TONIGHT CAN EXPECT DIFFICULT DRIVING CONDITIONS ESPECIALLY OVER
PASSES.

IDZ018-212200-
/O.CON.KPIH.WS.W.0010.000000T0000Z-141222T1200Z/
SAWTOOTH MOUNTAINS-
INCLUDING THE LOCATIONS OF...STANLEY...CLAYTON...COPPER BASIN...
BANNER CREEK SUMMIT
407 AM MST SUN DEC 21 2014

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

A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW REMAINS IN
EFFECT UNTIL 5 AM MST MONDAY.

* TIMING...THROUGH 5 AM MONDAY.

* MAIN IMPACT...TOTAL SNOWFALL OF 6 TO 12 INCHES OF SNOW WITH
  OVER A FOOT POSSIBLE ABOVE 7000 FEET.

* LOCATIONS INCLUDE...STANLEY...CLAYTON...BANNER CREEK SUMMIT

* OTHER IMPACTS...BLOWING AND DRIFTING SNOW AND LOW
  VISIBILITIES ON SUNDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE
EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE POCATELLO ID
407 AM MST SUN DEC 21 2014

.EXPECT SNOW LEVELS TO GRADUALLY RISE TO 7000 TO 7500 FEET THIS
AFTERNOON. TOTAL SNOWFALL OF OVER A FOOT IS EXPECTED ABOVE 7500
FEET WITH 6 TO 10 INCHES UP TO 7000 FEET. SNOW SHOULD GRADUALLY
TAPER OFF TONIGHT AS SNOW LEVELS DROP ONCE AGAIN TO 4500 FEET BY
MONDAY MORNING WITH THE STORM ENDING.

ANYONE TRAVELING IN THE SOUTHEAST IDAHO MOUNTAINS TODAY AND
TONIGHT CAN EXPECT DIFFICULT DRIVING CONDITIONS ESPECIALLY OVER
PASSES.

IDZ019-023-025-212200-
/O.CON.KPIH.WS.W.0010.000000T0000Z-141222T1200Z/
UPPER SNAKE HIGHLANDS-CARIBOU HIGHLANDS-
WASATCH MOUNTAINS/IDAHO PORTION-
407 AM MST SUN DEC 21 2014

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY
ABOVE 7500 FEET...

A WINTER STORM WARNING ABOVE 7500 FEET FOR SNOW AND BLOWING SNOW REMAINS
IN EFFECT UNTIL 5 AM MST MONDAY.

* TIMING...5 PM TODAY THROUGH 5 AM MONDAY.

* MAIN IMPACT...5 TO 10 INCHES OF SNOW ABOVE 6000 FEET WITH OVER A FOOT
  POSSIBLE ABOVE 7500 FEET.

* LOCATIONS INCLUDE...DRIGGS...ISLAND PARK...MONIDA PASS...
  ASHTON HILL...TARGHEE PASS...PINE CREEK PASS...FISH CREEK
  SUMMIT... GEORGETOWN SUMMIT.

* OTHER IMPACTS...BLOWING AND DRIFTING SNOW WITH LOW
  VISIBILITIES POSSIBLE ON SUNDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

HTTP://WEATHER.GOV/POCATELLO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE POCATELLO ID
407 AM MST SUN DEC 21 2014

.EXPECT SNOW LEVELS TO GRADUALLY RISE TO 7000 TO 7500 FEET THIS
AFTERNOON. TOTAL SNOWFALL OF OVER A FOOT IS EXPECTED ABOVE 7500
FEET WITH 6 TO 10 INCHES UP TO 7000 FEET. SNOW SHOULD GRADUALLY
TAPER OFF TONIGHT AS SNOW LEVELS DROP ONCE AGAIN TO 4500 FEET BY
MONDAY MORNING WITH THE STORM ENDING.

ANYONE TRAVELING IN THE SOUTHEAST IDAHO MOUNTAINS TODAY AND
TONIGHT CAN EXPECT DIFFICULT DRIVING CONDITIONS ESPECIALLY OVER
PASSES.

IDZ031-032-212200-
/O.CON.KPIH.WS.W.0010.000000T0000Z-141222T1200Z/
BIG AND LITTLE WOOD RIVER REGION-LOST RIVER/PAHSIMEROI-
INCLUDING THE LOCATIONS OF...SUN VALLEY...GALENA SUMMIT...
SMILEY CREEK LODGE...ARCO...WILLOW CREEK SUMMIT
407 AM MST SUN DEC 21 2014

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY
ABOVE 6000 FEET...

A WINTER STORM WARNING ABOVE 6000 FEET FOR SNOW AND BLOWING SNOW REMAINS
IN EFFECT UNTIL 5 AM MST MONDAY.

* TIMING...THROUGH 5 AM MONDAY.

* MAIN IMPACT...6 TO 10 INCHES OF SNOW ABOVE 6000 FEET WITH
  AROUND A FOOT POSSIBLE ABOVE 7000 FEET.

* LOCATIONS INCLUDE...GALENA SUMMIT...SMILEY CREEK LODGE...
  WILLOW CREEK SUMMIT.

* OTHER IMPACTS...BLOWING AND DRIFTING SNOW WITH LOW
  VISIBILITIES POSSIBLE ON SUNDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE
EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
231 AM MST SUN DEC 21 2014

...WINTER STORM ACROSS WESTERN WYOMING THIS WEEKEND...

.A MOIST PACIFIC SYSTEM WILL MOVE THROUGH WESTERN WYOMING THIS
WEEKEND...SPREADING SNOWFALL ACROSS THE WESTERN MOUNTAINS AND
VALLEYS. SNOWFALL WILL BE HEAVY AT TIMES...ESPECIALLY SUNDAY
MORNING THROUGH THE EVENING. THIS STORM WILL BRING SIGNIFICANT
SNOWFALL ACCUMULATIONS ACROSS THE WESTERN MOUNTAINS AND VALLEYS
BEFORE WEAKENING MONDAY MORNING.

WYZ012-013-212315-
/O.CON.KRIW.WS.W.0017.000000T0000Z-141222T1500Z/
TETON AND GROS VENTRE MOUNTAINS-JACKSON HOLE-
INCLUDING THE CITY OF...JACKSON
231 AM MST SUN DEC 21 2014

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST MONDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST MONDAY.

* SUMMARY AND TIMING...SNOWFALL WILL INCREASE ACROSS TETON
  COUNTY THROUGH MIDNIGHT...WITH PERIODS OF HEAVY SNOW AND
  BLOWING SNOW ON SUNDAY ACROSS THE AREA BEFORE WEAKENING ON
  MONDAY MORNING.

* SNOW ACCUMULATIONS...THE VALLEY LOCATIONS MAY SEE 6 TO 10
  INCHES OF SNOWFALL WITH THIS SYSTEM WITH THE HIGHER
  ACCUMULATIONS EXPECTED ACROSS THE NORTHERN PORTION OF JACKSON
  HOLE. MOUNTAIN LOCATIONS COULD SEE 15 TO 25 INCHES... WITH
  LOCALLY HIGHER AMOUNTS.

* WIND AND VISIBILITY...WIND WILL BE STRONGEST OVER THE MOUNTAIN
  PASSES WITH WEST WIND OF 25 TO 35 MPH WITH GUSTS OVER 45 MPH.
  THE LOWER ELEVATIONS WILL SEE SOUTHWEST WIND INCREASING TO 15
  TO 25 MPH ON SUNDAY WITH GUSTS TO 35 MPH IN OPEN AREAS. THE
  WIND AND SNOWFALL WILL LIMIT THE VISIBILITY TO UNDER A QUARTER
  MILE AT TIMES.

* IMPACTS...THE COMBINATION OF SNOWFALL AND WIND OVER THE HIGHER
  ELEVATIONS WILL HAVE AN ADVERSE IMPACT ON TRAVELERS ACROSS THE
  AREA. SIGNIFICANT SNOWFALL ACROSS THE VALLEYS WILL CREATE
  HAZARDOUS DRIVING CONDITIONS DUE TO SNOW PACKED ROADWAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

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.

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
231 AM MST SUN DEC 21 2014

...WINTER STORM ACROSS WESTERN WYOMING THIS WEEKEND...

.A MOIST PACIFIC SYSTEM WILL MOVE THROUGH WESTERN WYOMING THIS
WEEKEND...SPREADING SNOWFALL ACROSS THE WESTERN MOUNTAINS AND
VALLEYS. SNOWFALL WILL BE HEAVY AT TIMES...ESPECIALLY SUNDAY
MORNING THROUGH THE EVENING. THIS STORM WILL BRING SIGNIFICANT
SNOWFALL ACCUMULATIONS ACROSS THE WESTERN MOUNTAINS AND VALLEYS
BEFORE WEAKENING MONDAY MORNING.

WYZ002-212315-
/O.CON.KRIW.WS.W.0017.000000T0000Z-141222T1800Z/
ABSAROKA MOUNTAINS-
231 AM MST SUN DEC 21 2014

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST
MONDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST MONDAY.

* SUMMARY AND TIMING...SNOWFALL WILL INCREASE OVER THE ABSAROKA
  MOUNTAINS LATE THIS EVENING. HEAVY SNOW IS EXPECTED ON SUNDAY
  ACROSS THE AREA BEFORE WEAKENING ON MONDAY MORNING.

* SNOW ACCUMULATIONS...THE FOOTHILLS MAY RECEIVE 5 TO 8 INCHES
  OF SNOWFALL. THE HIGHEST ACCUMULATIONS ARE EXPECTED ALONG THE
  BORDER OF YELLOWSTONE NATIONAL PARK. 10 TO 20 INCHES OF
  SNOWFALL IS EXPECTED...WITH LOCALLY HIGHER AMOUNTS POSSIBLE.

* WIND AND VISIBILITY...WEST WIND OF 25 TO 35 MPH WILL IMPACT
  THE MOUNTAINOUS AREAS WITH GUSTS TO 45 MPH IN OPEN AREAS WHILE
  THE LOWER ELEVATIONS SEE NORTHWEST WIND INCREASING TO 15 TO 25
  MPH ON SUNDAY WITH SOME STRONGER GUSTS. THE WIND AND SNOWFALL
  WILL LIMIT THE VISIBILITY TO UNDER A QUARTER MILE AT TIMES.

* IMPACTS...AREAS POTENTIALLY EXPERIENCING THE COMBINATION OF
  GUSTY WIND WITH SNOWFALL MAY HAVE LIMITED VISIBILITY ON
  IMPACTED ROADWAYS. ADDITIONAL SIGNIFICANT SNOWFALL MAY CREATE
  HAZARDOUS TRAVEL WITH SNOW-PACKED ROADWAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

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.

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
231 AM MST SUN DEC 21 2014

...WINTER STORM ACROSS WESTERN WYOMING THIS WEEKEND...

.A MOIST PACIFIC SYSTEM WILL MOVE THROUGH WESTERN WYOMING THIS
WEEKEND...SPREADING SNOWFALL ACROSS THE WESTERN MOUNTAINS AND
VALLEYS. SNOWFALL WILL BE HEAVY AT TIMES...ESPECIALLY SUNDAY
MORNING THROUGH THE EVENING. THIS STORM WILL BRING SIGNIFICANT
SNOWFALL ACCUMULATIONS ACROSS THE WESTERN MOUNTAINS AND VALLEYS
BEFORE WEAKENING MONDAY MORNING.

WYZ001-212315-
/O.CON.KRIW.WS.W.0017.000000T0000Z-141222T1500Z/
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
231 AM MST SUN DEC 21 2014

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST MONDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST MONDAY.

* SUMMARY AND TIMING...SNOWFALL WILL INCREASE TONIGHT...AND WILL
  BE HEAVY AT TIMES BEFORE WEAKENING ON MONDAY MORNING.

* SNOW ACCUMULATIONS...THE VALLEY LOCATIONS MAY SEE 6 TO 10
  INCHES OF SNOWFALL WITH THIS SYSTEM WITH THE HIGHER
  ACCUMULATIONS EXPECTED ACROSS THE SOUTH NEAR THE SOUTHERN
  ENTRANCE. MOUNTAIN LOCATIONS COULD SEE 12 TO 24 INCHES... WITH
  LOCALLY HIGHER AMOUNTS.

* WIND AND VISIBILITY...WIND WILL BE STRONGEST OVER THE MOUNTAIN
  PASSES WITH WEST WIND OF 25 TO 35 MPH WITH GUSTS OVER 45 MPH.
  THE LOWER ELEVATIONS WILL SEE SOUTHWEST WIND INCREASING TO 15
  TO 25 MPH ON SUNDAY WITH GUSTS TO 35 MPH IN OPEN AREAS. THE
  WIND AND SNOWFALL WILL LIMIT THE VISIBILITY TO UNDER A QUARTER
  MILE AT TIMES.

* IMPACTS...THE COMBINATION OF SNOWFALL AND WIND OVER THE HIGHER
  ELEVATIONS WOULD HAVE AN ADVERSE IMPACT ON TRAVELERS ACROSS
  THE AREA. SIGNIFICANT SNOWFALL ACROSS THE VALLEYS WILL CREATE
  HAZARDOUS DRIVING CONDITIONS DUE TO SNOW PACKED ROADWAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

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.

&&

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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