Winter Storm Warning 8, NWS Riverton, WY

864 
WWUS45 KRIW 301901
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
1201 PM MST FRI NOV 30 2012

...LONG DURATION WINTER STORM THIS WEEKEND...

.SNOW IS EXPECTED TO FALL THROUGH MONDAY MORNING ACROSS THE
WESTERN MOUNTAINS...SNOW WILL BE HEAVY AT TIMES AND WILL BE
ACCOMPANIED BY VERY STRONG WINDS...WITH THE HIGHEST WINDS
EXPECTED ON SUNDAY. MANY OF THE HIGHER PEAKS AND PASSES WILL
ACCUMULATE AS MUCH AS THREE FEET OF SNOW BY THE TIME THE SNOW
TAPERS OFF EARLY MONDAY MORNING. A RAIN SNOW MIX IS EXPECTED IN
THE LOWER ELEVATIONS WHICH WILL RESULT IN A DRAMATIC DIFFERENCE
IN SNOW TOTALS FOR LOCATIONS ABOVE 8000 FEET VERSUS LOWER
ELEVATION AREAS SUCH AS MAMMOTH... WHICH COULD RECEIVE AS LITTLE
AS 2 TO 3 INCHES OF SNOW.

WYZ001-012-024-011015-
/O.CON.KRIW.WS.W.0008.000000T0000Z-121203T1200Z/
YELLOWSTONE NATIONAL PARK-TETON AND GROS VENTRE MOUNTAINS-
SALT RIVER AND WYOMING RANGES-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
1201 PM MST FRI NOV 30 2012

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

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

* SUMMARY AND TIMING...SNOW IS FALLING IN THE TETONS AND WESTERN
  PARTS OF YELLOWSTONE. THE SNOW WILL SPREAD EAST THROUGH THE
  AFTERNOON AND CONTINUE AT A FAIRLY STEADY RATE THROUGH THE
  WEEKEND WITH THE HEAVIEST BURST OF SNOW EXPECTED ON SUNDAY
  ASSOCIATED WITH A STRONG LOW PRESSURE SYSTEM AND COLD FRONTAL
  PASSAGE. WINDS WILL BE STRONGEST ON SUNDAY AS WELL. THE SNOW AND
  WIND WILL TAPER OFF BY SUNRISE ON MONDAY.

* SNOW ACCUMULATIONS...AS MUCH AS THREE FEET IS EXPECTED TO 
  ACCUMULATE OVER THE WEST FACING PEAKS ABOVE 8000 FEET 
  THROUGHOUT THE WEEKEND. EVEN LESS FAVORED AREAS COULD RECEIVE 
  AROUND ONE FOOT WITH MUCH LESS ACCUMULATION EXPECTED BELOW 
  7500 FEET. 

* WIND AND VISIBILITY...WIND SPEEDS WILL REMAIN ELEVATED 
  THROUGHOUT THE EVENT WITH THE STRONGEST WINDS EXPECTED ON 
  SUNDAY WHEN GUSTS OVER 80 MPH CAN BE EXPECTED AT THE PEAKS 
  WITH WIDESPREAD 40 MPH WINDS EXPECTED ACROSS THE HIGHLIGHTED 
  AREA. VISIBILITY WILL BE FREQUENTLY REDUCED BELOW ONE MILE IN 
  FALLING AND BLOWING SNOW. 

* IMPACTS...THE PERIODS OF HEAVY SNOW AND STRONG WIND WILL CAUSE 
  SIGNIFICANT DRIFTING ACROSS THE HIGHER MOUNTAIN PASSES AS WELL 
  AS REDUCED VISIBILITY IN FALLING AND BLOWING SNOW. EXPECT 
  TRAVEL TO BE DIFFICULT IF NOT IMPOSSIBLE OVER TETON PASS AND 
  TOGWOTEE PASS THIS WEEKEND. 

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.

&&

$$

080 
WWUS45 KRIW 302112
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
212 PM MST FRI NOV 30 2012

...LONG DURATION WINTER STORM THIS WEEKEND...

.SNOW IS EXPECTED TO FALL THROUGH MONDAY MORNING ACROSS THE
WESTERN MOUNTAINS...SNOW WILL BE HEAVY AT TIMES AND WILL BE
ACCOMPANIED BY VERY STRONG WINDS...WITH THE HIGHEST WINDS
EXPECTED ON SUNDAY. MANY OF THE HIGHER PEAKS AND PASSES WILL
ACCUMULATE AS MUCH AS THREE FEET OF SNOW BY THE TIME THE SNOW
TAPERS OFF EARLY MONDAY MORNING. A RAIN SNOW MIX IS EXPECTED IN
THE LOWER ELEVATIONS WHICH WILL RESULT IN A DRAMATIC DIFFERENCE
IN SNOW TOTALS FOR LOCATIONS ABOVE 8000 FEET VERSUS LOWER
ELEVATION AREAS SUCH AS MAMMOTH... WHICH COULD RECEIVE AS LITTLE
AS 2 TO 3 INCHES OF SNOW.

WYZ001-012-024-011000-
/O.CON.KRIW.WS.W.0008.000000T0000Z-121203T1200Z/
YELLOWSTONE NATIONAL PARK-TETON AND GROS VENTRE MOUNTAINS-
SALT RIVER AND WYOMING RANGES-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
212 PM MST FRI NOV 30 2012

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

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

* SUMMARY AND TIMING...SNOW IS FALLING IN THE TETONS AND WESTERN 
  PARTS OF YELLOWSTONE. THE SNOW WILL SPREAD EAST THROUGH THE 
  AFTERNOON AND CONTINUE AT A FAIRLY STEADY RATE THROUGH THE 
  WEEKEND WITH THE HEAVIEST BURST OF SNOW EXPECTED ON SUNDAY 
  ASSOCIATED WITH A STRONG LOW PRESSURE SYSTEM AND COLD FRONTAL 
  PASSAGE. WINDS WILL BE STRONGEST ON SUNDAY AS WELL. THE SNOW 
  AND WIND WILL TAPER OFF BY SUNRISE ON MONDAY. 

* SNOW ACCUMULATIONS...AS MUCH AS THREE FEET IS EXPECTED TO 
  ACCUMULATE OVER THE WEST FACING PEAKS ABOVE 8000 FEET 
  THROUGHOUT THE WEEKEND. EVEN LESS FAVORED AREAS COULD RECEIVE 
  AROUND ONE FOOT WITH MUCH LESS ACCUMULATION EXPECTED BELOW 
  7500 FEET. 

* WIND AND VISIBILITY...WIND SPEEDS WILL REMAIN ELEVATED 
  THROUGHOUT THE EVENT WITH THE STRONGEST WINDS EXPECTED ON 
  SUNDAY WHEN GUSTS OVER 80 MPH CAN BE EXPECTED AT THE PEAKS 
  WITH WIDESPREAD 40 MPH WINDS EXPECTED ACROSS THE HIGHLIGHTED 
  AREA. VISIBILITY WILL BE FREQUENTLY REDUCED BELOW ONE MILE IN 
  FALLING AND BLOWING SNOW. 

* IMPACTS...THE PERIODS OF HEAVY SNOW AND STRONG WIND WILL CAUSE 
  SIGNIFICANT DRIFTING ACROSS THE HIGHER MOUNTAIN PASSES AS WELL 
  AS REDUCED VISIBILITY IN FALLING AND BLOWING SNOW. EXPECT 
  TRAVEL TO BE DIFFICULT IF NOT IMPOSSIBLE OVER TETON PASS AND 
  TOGWOTEE PASS THIS WEEKEND. 

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.

&&

$$

WYZ014-015-011000-
/O.NEW.KRIW.WW.Y.0031.121201T0000Z-121201T1500Z/
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
212 PM MST FRI NOV 30 2012

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 AM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
UNTIL 8 AM MST SATURDAY.


* SUMMARY AND TIMING...SNOW WILL DEVELOP THIS EVENING AND BECOME
  STEADIER AND HEAVIER INTO THE NIGHT WITH THE HEAVIEST SNOW
  EXPECTED AFTER 9 PM UNTIL AROUND 4 AM. SNOW WILL BECOME LIGHT
  AND INTERMITTENT AFTER SUNRISE SATURDAY.

* SNOW ACCUMULATIONS...4 TO 8 INCHES...WITH THE BEST CHANCE OF 8
  INCHES IN THE HIGHER ELEVATIONS.

* WIND AND VISIBILITY...WEST TO SOUTHWEST 15 TO 25 MPH WITH GUSTS
  TO 35 MPH. VISIBILITY WILL BE REDUCED TO UNDER ONE HALF A MILE
  IN SNOW AND BLOWING SNOW.

* IMPACTS...SOUTH PASS ON HIGHWAY 28 WILL BECOME SLICK AND SNOW
  COVERED AT TIMES TONIGHT...ESPECIALLY LATE THIS EVENING AND
  AFTER MIDNIGHT INTO TOMORROW MORNING.


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.

&&

$$

741 
WWUS45 KRIW 010900
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
200 AM MST SAT DEC 1 2012

...LONG DURATION WINTER STORM CONTINUES...

.SNOWFALL ASSOCIATED WITH THE FIRST WAVE OF SEVERAL DISTURBANCES
EXPECTED TO MOVE ACROSS THE REGION IS BEGINNING TO TAPER OFF. A
FEW POCKETS OF LIGHTER SNOW AND RAIN REMAIN THIS MORNING...WHICH
WILL CONTINUE OFF AND ON THROUGH THE DAY TODAY. A MORE POTENT
SYSTEM WITH A STRONG COLD FRONT AND VERY STRONG WINDS WILL MOVE
THROUGH ON SUNDAY WITH THE HEAVIEST SNOW AND STRONGEST WINDS
EXPECTED TO OCCUR AT THAT TIME. MANY OF THE HIGHER PEAKS AND
PASSES WILL ACCUMULATE AS MUCH AS THREE FEET OF SNOW BY THE TIME
THE SNOW TAPERS OFF EARLY MONDAY MORNING. A RAIN SNOW MIX IS
EXPECTED IN THE LOWER ELEVATIONS WHICH WILL RESULT IN A DRAMATIC
DIFFERENCE IN SNOW TOTALS FOR LOCATIONS ABOVE 8000 FEET VERSUS
LOWER ELEVATION AREAS SUCH AS MAMMOTH... WHICH COULD RECEIVE AS
LITTLE AS 2 TO 3 INCHES OF SNOW FOR THE WEEKEND.

WYZ001-012-024-011600-
/O.CON.KRIW.WS.W.0008.000000T0000Z-121203T1200Z/
YELLOWSTONE NATIONAL PARK-TETON AND GROS VENTRE MOUNTAINS-
SALT RIVER AND WYOMING RANGES-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
200 AM MST SAT DEC 1 2012

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

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

* SUMMARY AND TIMING...LIGHTER SNOW IS FALLING ACROSS THE WESTERN
  MOUNTAINS THIS MORNING...IT WILL CONTINUE AT A FAIRLY STEADY
  RATE TODAY AND TONIGHT WITH A HEAVIER BURST OF SNOW EXPECTED
  ON SUNDAY ASSOCIATED WITH A STRONG LOW PRESSURE SYSTEM AND COLD
  FRONTAL PASSAGE. WINDS WILL BE STRONGEST ON SUNDAY AS WELL. THE
  SNOW AND WIND WILL TAPER OFF BY SUNRISE ON MONDAY.

* SNOW ACCUMULATIONS...ABOUT A FOOT OF SNOW FELL ACROSS THE HIGHER
  ELEVATIONS ON FRIDAY WITH MANY AREAS RECEIVING OVER A HALF INCH
  OF LIQUID WATER EQUIVALENT. ANOTHER 4 TO 6 INCHES IS EXPECTED
  ACROSS THE TETON AND BRIDGER MOUNTAINS TODAY AS WELL AS ACROSS
  MUCH OF YELLOWSTONE NATIONAL PARK. SOME OF THE HIGHER WEST
  FACING PEAKS COULD RECEIVE AS MUCH AS 8 INCHES OF SNOW TODAY.
  SNOW RATES WILL INCREASE DRAMATICALLY ON SUNDAY. AS MUCH AS
  THREE FEET IS EXPECTED TO ACCUMULATE OVER THE WEST FACING PEAKS
  ABOVE 8000 FEET THROUGHOUT THE WEEKEND. EVEN LESS FAVORED AREAS
  COULD RECEIVE AROUND ONE FOOT WITH MUCH LESS ACCUMULATION
  EXPECTED BELOW 8000 FEET.

* WIND AND VISIBILITY...WIND SPEEDS WILL REMAIN ELEVATED TODAY
  WITH THE STRONGER WINDS EXPECTED ON SUNDAY WHEN GUSTS OVER 80
  MPH CAN BE EXPECTED AT THE PEAKS WITH WIDESPREAD 40 MPH WINDS
  EXPECTED ACROSS THE WARNED AREA. VISIBILITY WILL BE
  FREQUENTLY REDUCED BELOW ONE MILE IN FALLING AND BLOWING SNOW.

* IMPACTS...THE PERIODS OF HEAVY SNOW AND STRONG WIND WILL CAUSE 
  SIGNIFICANT DRIFTING ACROSS THE HIGHER MOUNTAIN PASSES AS WELL 
  AS REDUCED VISIBILITY IN FALLING AND BLOWING SNOW. EXPECT 
  TRAVEL TO BE DIFFICULT IF NOT IMPOSSIBLE OVER TETON PASS AND 
  TOGWOTEE PASS THIS WEEKEND. 

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.

&&

$$

WYZ014-015-011500-
/O.CON.KRIW.WW.Y.0031.000000T0000Z-121201T1500Z/
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
200 AM MST SAT DEC 1 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST THIS
MORNING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST THIS
MORNING. 

* SUMMARY AND TIMING...SNOW WILL CONTINUE TO TAPER OFF THROUGH THE
  MORNING. 

* SNOW AND ICE ACCUMULATIONS...2 TO 6 INCHES OF SNOW...WITH THE
  BEST CHANCE OF 6 INCHES IN THE HIGHER ELEVATIONS. AREAS OF
  FREEZING RAIN MAY ENCOURAGE ICE ACCUMULATIONS OF AROUND ONE
  TENTH OF AN INCH OR LESS. 

* WIND AND VISIBILITY...WEST TO SOUTHWEST 15 TO 25 MPH WITH GUSTS
  TO 45 MPH. VISIBILITY WILL REMAIN BELOW ONE HALF MILE THROUGH
  THE EARLY MORNING HOURS IN DENSE FOG...FREEZING RAIN AND DRIZZLE
  AND...FALLING SNOW.

* IMPACTS...SOUTH PASS ON HIGHWAY 28 WILL REMAIN SLICK WITH
  POCKETS OF SNOW COVER AND BLACK ICE THIS MORNING...IN ADDITION
  POOR VISIBILITY WILL CONTINUE TO MAKE TRAVEL OVER SOUTH PASS
  DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND FREEZING
RAIN 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.

&&

$$

302 
WWUS45 KRIW 010902 CCA
WSWRIW

URGENT - WINTER WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE RIVERTON WY
202 AM MST SAT DEC 1 2012

...LONG DURATION WINTER STORM CONTINUES...

.SNOWFALL ASSOCIATED WITH THE FIRST WAVE OF SEVERAL DISTURBANCES
EXPECTED TO MOVE ACROSS THE REGION IS BEGINNING TO TAPER OFF. A
FEW POCKETS OF LIGHTER SNOW AND RAIN REMAIN THIS MORNING...WHICH
WILL CONTINUE OFF AND ON THROUGH THE DAY TODAY. A MORE POTENT
SYSTEM WITH A STRONG COLD FRONT AND VERY STRONG WINDS WILL MOVE
THROUGH ON SUNDAY WITH THE HEAVIEST SNOW AND STRONGEST WINDS
EXPECTED TO OCCUR AT THAT TIME. MANY OF THE HIGHER PEAKS AND
PASSES WILL ACCUMULATE AS MUCH AS THREE FEET OF SNOW BY THE TIME
THE SNOW TAPERS OFF EARLY MONDAY MORNING. A RAIN SNOW MIX IS
EXPECTED IN THE LOWER ELEVATIONS WHICH WILL RESULT IN A DRAMATIC
DIFFERENCE IN SNOW TOTALS FOR LOCATIONS ABOVE 8000 FEET VERSUS
LOWER ELEVATION AREAS SUCH AS MAMMOTH... WHICH COULD RECEIVE AS
LITTLE AS 2 TO 3 INCHES OF SNOW FOR THE WEEKEND.

WYZ001-012-024-011615-
/O.COR.KRIW.WS.W.0008.000000T0000Z-121203T1200Z/
YELLOWSTONE NATIONAL PARK-TETON AND GROS VENTRE MOUNTAINS-
SALT RIVER AND WYOMING RANGES-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
202 AM MST SAT DEC 1 2012

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

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

* SUMMARY AND TIMING...LIGHTER SNOW IS FALLING ACROSS THE WESTERN
  MOUNTAINS THIS MORNING...IT WILL CONTINUE AT A FAIRLY STEADY
  RATE TODAY AND TONIGHT WITH A HEAVIER BURST OF SNOW EXPECTED
  ON SUNDAY ASSOCIATED WITH A STRONG LOW PRESSURE SYSTEM AND COLD
  FRONTAL PASSAGE. WINDS WILL BE STRONGEST ON SUNDAY AS WELL. THE
  SNOW AND WIND WILL TAPER OFF BY SUNRISE ON MONDAY.

* SNOW ACCUMULATIONS...ABOUT A FOOT OF SNOW FELL ACROSS THE HIGHER
  ELEVATIONS ON FRIDAY WITH MANY AREAS RECEIVING OVER A HALF INCH
  OF LIQUID WATER EQUIVALENT. ANOTHER 4 TO 6 INCHES IS EXPECTED
  ACROSS THE TETON AND BRIDGER MOUNTAINS TODAY AS WELL AS ACROSS
  MUCH OF YELLOWSTONE NATIONAL PARK. SOME OF THE HIGHER WEST
  FACING PEAKS COULD RECEIVE AS MUCH AS 8 INCHES OF SNOW TODAY.
  SNOW RATES WILL INCREASE DRAMATICALLY ON SUNDAY. AS MUCH AS
  THREE FEET IS EXPECTED TO ACCUMULATE OVER THE WEST FACING PEAKS
  ABOVE 8000 FEET THROUGHOUT THE WEEKEND. EVEN LESS FAVORED AREAS
  COULD RECEIVE AROUND ONE FOOT WITH MUCH LESS ACCUMULATION
  EXPECTED BELOW 8000 FEET.

* WIND AND VISIBILITY...WIND SPEEDS WILL REMAIN ELEVATED TODAY
  WITH THE STRONGER WINDS EXPECTED ON SUNDAY WHEN GUSTS OVER 80
  MPH CAN BE EXPECTED AT THE PEAKS WITH WIDESPREAD 40 MPH WINDS
  EXPECTED ACROSS THE WARNED AREA. VISIBILITY WILL BE
  FREQUENTLY REDUCED BELOW ONE MILE IN FALLING AND BLOWING SNOW.

* IMPACTS...THE PERIODS OF HEAVY SNOW AND STRONG WIND WILL CAUSE 
  SIGNIFICANT DRIFTING ACROSS THE HIGHER MOUNTAIN PASSES AS WELL 
  AS REDUCED VISIBILITY IN FALLING AND BLOWING SNOW. EXPECT 
  TRAVEL TO BE DIFFICULT IF NOT IMPOSSIBLE OVER TETON PASS AND 
  TOGWOTEE PASS THIS WEEKEND. 

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.

&&

$$

WYZ014-015-011500-
/O.CON.KRIW.WW.Y.0031.000000T0000Z-121201T1500Z/
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
202 AM MST SAT DEC 1 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST THIS
MORNING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST THIS
MORNING. 

* SUMMARY AND TIMING...SNOW WILL CONTINUE TO TAPER OFF THROUGH THE
  MORNING. 

* SNOW AND ICE ACCUMULATIONS...2 TO 6 INCHES OF SNOW...WITH THE
  BEST CHANCE OF 6 INCHES IN THE HIGHER ELEVATIONS. AREAS OF
  FREEZING RAIN MAY ENCOURAGE ICE ACCUMULATIONS OF AROUND ONE
  TENTH OF AN INCH OR LESS. 

* WIND AND VISIBILITY...WEST TO SOUTHWEST 15 TO 25 MPH WITH GUSTS
  TO 45 MPH. VISIBILITY WILL REMAIN BELOW ONE HALF MILE THROUGH
  THE EARLY MORNING HOURS IN DENSE FOG...FREEZING RAIN AND DRIZZLE
  AND...FALLING SNOW.

* IMPACTS...SOUTH PASS ON HIGHWAY 28 WILL REMAIN SLICK WITH
  POCKETS OF SNOW COVER AND BLACK ICE THIS MORNING...IN ADDITION
  POOR VISIBILITY WILL CONTINUE TO MAKE TRAVEL OVER SOUTH PASS
  DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND FREEZING
RAIN 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.

&&

$$

625 
WWUS45 KRIW 011224
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
524 AM MST SAT DEC 1 2012

...LONG DURATION WINTER STORM CONTINUES...

.SNOWFALL ASSOCIATED WITH THE FIRST WAVE OF SEVERAL DISTURBANCES
EXPECTED TO MOVE ACROSS THE REGION IS BEGINNING TO TAPER OFF. A
FEW POCKETS OF LIGHTER SNOW AND RAIN REMAIN THIS MORNING...WHICH
WILL CONTINUE OFF AND ON THROUGH THE DAY TODAY. A MORE POTENT
SYSTEM WITH A STRONG COLD FRONT AND VERY STRONG WINDS WILL MOVE
THROUGH ON SUNDAY WITH THE HEAVIEST SNOW AND STRONGEST WINDS
EXPECTED TO OCCUR AT THAT TIME. MANY OF THE HIGHER PEAKS AND
PASSES WILL ACCUMULATE AS MUCH AS THREE FEET OF SNOW BY THE TIME
THE SNOW TAPERS OFF EARLY MONDAY MORNING. A RAIN...SNOW MIX IS
EXPECTED IN THE LOWER ELEVATIONS WHICH WILL RESULT IN A DRAMATIC
DIFFERENCE IN SNOW TOTALS FOR LOCATIONS ABOVE 8000 FEET VERSUS
LOWER ELEVATION AREAS SUCH AS MAMMOTH... WHICH COULD RECEIVE AS
LITTLE AS 2 TO 3 INCHES OF SNOW FOR THE WEEKEND.

WYZ014-015-011330-
/O.CAN.KRIW.WW.Y.0031.000000T0000Z-121201T1500Z/
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
524 AM MST SAT DEC 1 2012

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE WINTER
WEATHER ADVISORY. LITTLE OR NO ADDITIONAL SNOWFALL IS EXPECTED
THIS MORNING ACROSS THE WIND RIVER MOUNTAINS. HOWEVER...SOUTH PASS
WILL REMAIN SLICK THIS MORNING. IN ADDITION...AREAS OF FOG WILL BE
FOUND ALONG SOUTH PASS THIS MORNING. DRIVERS ARE URGED TO USE
EXTREME CAUTION IF TRAVELING OVER SOUTH PASS THIS MORNING.

$$

WYZ001-012-024-012300-
/O.CON.KRIW.WS.W.0008.000000T0000Z-121203T1200Z/
YELLOWSTONE NATIONAL PARK-TETON AND GROS VENTRE MOUNTAINS-
SALT RIVER AND WYOMING RANGES-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
524 AM MST SAT DEC 1 2012

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

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

* SUMMARY AND TIMING...LIGHTER SNOW IS FALLING ACROSS THE 
  WESTERN MOUNTAINS THIS MORNING...IT WILL CONTINUE AT A FAIRLY 
  STEADY RATE TODAY AND TONIGHT WITH A HEAVIER BURST OF SNOW 
  EXPECTED ON SUNDAY ASSOCIATED WITH A STRONG LOW PRESSURE 
  SYSTEM AND COLD FRONTAL PASSAGE. WINDS WILL BE STRONGEST ON 
  SUNDAY AS WELL. THE SNOW AND WIND WILL TAPER OFF BY SUNRISE ON 
  MONDAY. 

* SNOW ACCUMULATIONS...ABOUT A FOOT OF SNOW FELL ACROSS THE HIGHER
  ELEVATIONS...FRIDAY AND FRIDAY NIGHT...WITH MANY AREAS RECEIVING
  OVER A HALF INCH OF LIQUID WATER EQUIVALENT. ANOTHER 4 TO 6
  INCHES IS EXPECTED ACROSS THE TETON AND GROS VENTRE MOUNTAINS
  TODAY AS WELL AS ACROSS MUCH OF YELLOWSTONE NATIONAL PARK. SOME
  OF THE HIGHER WEST FACING PEAKS COULD RECEIVE AS MUCH AS 8
  INCHES OF SNOW TODAY. SNOW RATES WILL INCREASE DRAMATICALLY ON
  SUNDAY. AS MUCH AS THREE FEET IS EXPECTED TO ACCUMULATE OVER THE
  WEST FACING PEAKS ABOVE 8000 FEET THROUGHOUT THE WEEKEND. EVEN
  LESS FAVORED AREAS COULD RECEIVE AROUND ONE FOOT WITH MUCH LESS
  ACCUMULATION EXPECTED BELOW 8000 FEET.

* WIND AND VISIBILITY...WIND SPEEDS WILL REMAIN ELEVATED TODAY 
  WITH THE STRONGER WINDS EXPECTED ON SUNDAY WHEN GUSTS OVER 80 
  MPH CAN BE EXPECTED AT THE PEAKS WITH WIDESPREAD 40 MPH WINDS 
  EXPECTED ACROSS THE WARNED AREA. VISIBILITY WILL BE FREQUENTLY 
  REDUCED BELOW ONE MILE IN FALLING AND BLOWING SNOW. 

* IMPACTS...THE PERIODS OF HEAVY SNOW AND STRONG WIND WILL CAUSE
  SIGNIFICANT DRIFTING ACROSS THE HIGHER MOUNTAIN PASSES AS WELL
  AS REDUCED VISIBILITY IN FALLING AND BLOWING SNOW. EXPECT TRAVEL
  TO BE DIFFICULT OVER TETON PASS AND TOGWOTEE PASS THIS WEEKEND.

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.

&&

$$

TEAM RIVERTON/21

636 
WWUS45 KRIW 012117
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
217 PM MST SAT DEC 1 2012

...LONG DURATION WINTER STORM CONTINUES...

.SNOWFALL ASSOCIATED WITH THE SECOND WAVE OF SEVERAL DISTURBANCES
EXPECTED IS MOVING THROUGH THE AREA. AREAS OF MOUNTAIN SNOW AND
SNOW AND RAIN THE THE VALLEYS WILL CONTINUE INTO THE NIGHT. A MORE
POTENT SYSTEM WITH A STRONG COLD FRONT AND VERY STRONG WINDS WILL
MOVE THROUGH ON SUNDAY WITH THE HEAVIEST SNOW AND STRONGEST WINDS
EXPECTED TO OCCUR AT THAT TIME. MANY OF THE HIGHER PEAKS AND
PASSES WILL ACCUMULATE AS MUCH AS THREE FEET OF SNOW BY THE TIME
THE SNOW TAPERS OFF EARLY MONDAY MORNING. A RAIN...SNOW MIX IS
EXPECTED IN THE LOWER ELEVATIONS WHICH WILL RESULT IN A DRAMATIC
DIFFERENCE IN SNOW TOTALS FOR LOCATIONS ABOVE 8000 FEET VERSUS
LOWER ELEVATION AREAS SUCH AS MAMMOTH... WHICH COULD RECEIVE AS
LITTLE AS 2 TO 3 INCHES OF SNOW FOR THE WEEKEND.

WYZ001-012-024-021000-
/O.CON.KRIW.WS.W.0008.000000T0000Z-121203T1200Z/
YELLOWSTONE NATIONAL PARK-TETON AND GROS VENTRE MOUNTAINS-
SALT RIVER AND WYOMING RANGES-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
217 PM MST SAT DEC 1 2012

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

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

* SUMMARY AND TIMING...LIGHTER SNOW IS FALLING ACROSS THE 
  WESTERN MOUNTAINS THIS MORNING...IT WILL CONTINUE AT A FAIRLY 
  STEADY RATE TODAY AND TONIGHT WITH A HEAVIER BURST OF SNOW 
  EXPECTED ON SUNDAY ASSOCIATED WITH A STRONG LOW PRESSURE 
  SYSTEM AND COLD FRONTAL PASSAGE. WINDS WILL BE STRONGEST ON 
  SUNDAY AS WELL. THE SNOW AND WIND WILL TAPER OFF BY SUNRISE ON 
  MONDAY. 

* SNOW ACCUMULATIONS...ABOUT A FOOT OF SNOW FELL ACROSS THE HIGHER
  ELEVATIONS...FRIDAY AND FRIDAY NIGHT...WITH MANY AREAS RECEIVING
  OVER A HALF INCH OF LIQUID WATER EQUIVALENT. ANOTHER 3 TO 5
  INCHES IS EXPECTED ACROSS THE TETON AND GROS VENTRE MOUNTAINS
  THROUGH TONIGHT AS WELL AS ACROSS MUCH OF YELLOWSTONE NATIONAL
  PARK. SOME OF THE HIGHER WEST FACING PEAKS COULD RECEIVE AS MUCH
  AS 6 INCHES OF SNOW THROUGH TONIGHT. SNOW RATES WILL INCREASE
  DRAMATICALLY ON SUNDAY...ESPECIALLY IN THE AFTERNOON. AS MUCH AS
  THREE FEET IS EXPECTED TO ACCUMULATE OVER THE WEST FACING PEAKS
  ABOVE 8000 FEET THROUGHOUT THE WEEKEND. EVEN LESS FAVORED AREAS
  COULD RECEIVE AROUND ONE FOOT WITH MUCH LESS ACCUMULATION
  EXPECTED BELOW 8000 FEET.

* WIND AND VISIBILITY...WIND SPEEDS WILL REMAIN ELEVATED TODAY 
  WITH THE STRONGER WINDS EXPECTED ON SUNDAY WHEN GUSTS OVER 70 
  MPH CAN BE EXPECTED AT THE PEAKS WITH WIDESPREAD 40 MPH WINDS 
  EXPECTED ACROSS THE WARNED AREA. VISIBILITY WILL BE FREQUENTLY 
  REDUCED BELOW ONE MILE IN FALLING AND BLOWING SNOW. 

* IMPACTS...THE PERIODS OF HEAVY SNOW AND STRONG WIND WILL CAUSE 
  SIGNIFICANT DRIFTING ACROSS THE HIGHER MOUNTAIN PASSES AS WELL 
  AS REDUCED VISIBILITY IN FALLING AND BLOWING SNOW. EXPECT 
  TRAVEL TO BE DIFFICULT OVER TETON PASS AND TOGWOTEE PASS THIS 
  WEEKEND. 

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.

&&

$$

544 
WWUS45 KRIW 020906
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
206 AM MST SUN DEC 2 2012

...THE LAST AND STRONGEST BURST OF WEEKEND SNOW AND WIND WILL
OCCUR TODAY AND TONIGHT...

.A MORE POTENT SYSTEM WITH A STRONG COLD FRONT AND VERY STRONG
WINDS WILL MOVE THROUGH TODAY WITH THE HEAVIEST SNOW AND
STRONGEST WINDS EXPECTED TO OCCUR LATE THIS AFTERNOON INTO THE
EARLY EVENING HOURS WITH THE FRONTAL PASSAGE. MANY AREAS
HAVE RECEIVED A FOOT AND A HALF SO FAR THIS WEEKEND...MANY OF THE
HIGHER PEAKS AND PASSES WILL ACCUMULATE AS MUCH AS THREE FEET OF
SNOW BY THE TIME THE SNOW TAPERS OFF EARLY MONDAY MORNING. A
RAIN AND SNOW MIX IS EXPECTED TO CONTINUE IN THE LOWER ELEVATIONS
TODAY IN THE VERY WARM AIR AHEAD OF THE FRONT. SNOW LEVELS WILL
FINALLY DROP TO THE VALLEY FLOORS WITH THE FRONT LATER THIS
AFTERNOON...SNOW WILL CONTINUE INTO THE EVENING HOURS AND WILL
TAPER OFF AFTER MIDNIGHT.

WYZ001-012-024-022230-
/O.EXT.KRIW.WS.W.0008.000000T0000Z-121203T1000Z/
YELLOWSTONE NATIONAL PARK-TETON AND GROS VENTRE MOUNTAINS-
SALT RIVER AND WYOMING RANGES-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
206 AM MST SUN DEC 2 2012

...WINTER STORM WARNING NOW IN EFFECT UNTIL 3 AM MST MONDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 3 AM MST MONDAY. 

* SUMMARY AND TIMING...A STRONG LOW PRESSURE SYSTEM AND COLD
  FRONTAL PASSAGE WILL OCCUR TODAY...BRINGING A BURST OF HEAVY
  SNOW AND LOWERING SNOW LEVELS LATE THIS AFTERNOON. WINDS WILL
  BECOME VERY STRONG TODAY AS WELL. THE SNOW AND WIND WILL TAPER
  OFF BY SUNRISE ON MONDAY.

* SNOW ACCUMULATIONS...SNOW RATES WILL INCREASE DRAMATICALLY TODAY
  ...ESPECIALLY IN THE AFTERNOON. ANOTHER FOOT OR MORE IS EXPECTED
  TO ACCUMULATE OVER THE WEST FACING PEAKS ABOVE 8000 FEET TODAY.
  LESS FAVORED AREAS COULD RECEIVE 5 TO 10 INCHES. 

* WIND AND VISIBILITY...WIND SPEEDS WILL EXCEED 80 MPH AT THE
  SUMMITS TODAY WITH WIDESPREAD 40 MPH WINDS EXPECTED ACROSS THE
  WARNED AREA. VISIBILITY WILL BE FREQUENTLY REDUCED BELOW ONE
  MILE IN FALLING AND BLOWING SNOW.

* IMPACTS...THE PERIODS OF HEAVY SNOW AND STRONG WIND WILL CAUSE 
  SIGNIFICANT DRIFTING ACROSS THE HIGHER MOUNTAIN PASSES AS WELL 
  AS REDUCED VISIBILITY IN FALLING AND BLOWING SNOW. EXPECT 
  TRAVEL TO BE DIFFICULT OVER PASSES TODAY AND TONIGHT.

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.

&&

$$

WYZ014-015-022230-
/O.NEW.KRIW.WW.Y.0032.121202T2100Z-121203T1000Z/
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
206 AM MST SUN DEC 2 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
3 AM MST MONDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
WEATHER ADVISORY FOR HEAVY SNOW...BLOWING SNOW AND STRONG WIND
...WHICH IS IN EFFECT FROM 2 PM THIS AFTERNOON TO 3 AM MST MONDAY.

* SUMMARY AND TIMING...STRONG SOUTHWEST WINDS WILL BEGIN TO BLOW
  BY LATE MORNING WITH SNOW ENTERING THE FAR WESTERN PORTION OF
  THE WIND RIVER MOUNTAINS BY NOON...SPREADING EAST THROUGH THE
  DAY WITH SNOW LEVELS LOWERING IN THE LATE AFTERNOON...WITH SNOW
  BEGINNING TO IMPACT SOUTH PASS BY SUNSET...SNOW WILL BECOME
  HEAVY IN THE EVENING BEFORE ENDING ABRUPTLY AFTER MIDNIGHT.

* SNOW ACCUMULATIONS...4 TO 8 INCHES ABOVE 7500 FEET WITH 2 TO 4
  INCHES EXPECTED AROUND SOUTH PASS. 

* WIND AND VISIBILITY...SOUTHWEST WINDS OF 30 TO 40 MPH WILL BE
  COMMON WITH GUSTS OVER 80 MPH POSSIBLE ON THE SUMMITS EARLY IN
  THE PERIOD WITH GUSTS OVER 60 MPH STILL POSSIBLE THROUGH 2 AM.
  VISIBILITY WILL BE SHARPLY REDUCED IN SNOW AND BLOWING SNOW
  LATER THIS AFTERNOON AND EVENING.  

* IMPACTS...VERY STRONG WINDS WILL CREATE DIFFICULT TRAVEL WHICH
  WILL BE FURTHER IMPACTED BY SNOWFALL WHICH COULD BE HEAVY AT
  TIMES LATE THIS AFTERNOON AND EVENING. FALLING AND BLOWING SNOW
  MAY MAKE TRAVEL IMPOSSIBLE OVER SOUTH PASS THIS EVENING.

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.

&&

$$

882 
WWUS45 KRIW 022117
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
217 PM MST SUN DEC 2 2012

...THE LAST AND STRONGEST BURST OF WEEKEND SNOW AND WIND IS NOW
MOVING INTO WESTERN WYOMING...

.A POTENT SYSTEM WITH A STRONG COLD FRONT AND VERY STRONG WINDS
WILL MOVE THROUGH THIS AFTERNOON AND EVENING WITH THE HEAVIEST
SNOW AND STRONGEST WINDS EXPECTED TO OCCUR LATE THIS AFTERNOON
INTO THE EARLY EVENING HOURS WITH THE FRONTAL PASSAGE. MANY AREAS
HAVE RECEIVED A FOOT AND A HALF SO FAR THIS WEEKEND...MANY OF THE
HIGHER PEAKS AND PASSES WILL ACCUMULATE AS MUCH AS THREE FEET OF
SNOW BY THE TIME THE SNOW TAPERS OFF EARLY MONDAY MORNING. A RAIN
AND SNOW MIX IS EXPECTED TO CONTINUE IN THE LOWER ELEVATIONS THIS
AFTERNOON IN THE WARM AIR AHEAD OF THE FRONT. SNOW LEVELS WILL
FINALLY DROP TO THE VALLEY FLOORS WITH THE FRONT THIS
EVENING...SNOW WILL CONTINUE INTO THE EVENING HOURS AND WILL
TAPER OFF AFTER MIDNIGHT.

WYZ001-012-024-031000-
/O.CON.KRIW.WS.W.0008.000000T0000Z-121203T1000Z/
YELLOWSTONE NATIONAL PARK-TETON AND GROS VENTRE MOUNTAINS-
SALT RIVER AND WYOMING RANGES-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
217 PM MST SUN DEC 2 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM MST MONDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM MST MONDAY. 

* SUMMARY AND TIMING...A STRONG LOW PRESSURE SYSTEM AND COLD
  FRONTAL PASSAGE WILL OCCUR THIS AFTERNOON AND EVENING...BRINGING
  A BURST OF HEAVY SNOW AND LOWERING SNOW LEVELS LATE THIS
  AFTERNOON AND EARLY THIS EVENING. WINDS WILL BE VERY STRONG AS
  WELL. THE SNOW AND WIND WILL TAPER OFF BY SUNRISE ON MONDAY.

* SNOW ACCUMULATIONS...SNOW RATES WILL INCREASE DRAMATICALLY 
  TODAY ESPECIALLY ...IN THE AFTERNOON. ANOTHER FOOT OR MORE IS 
  EXPECTED TO ACCUMULATE OVER THE WEST FACING PEAKS ABOVE 8000 
  FEET TODAY. LESS FAVORED AREAS COULD RECEIVE 5 TO 10 INCHES. 

* WIND AND VISIBILITY...WIND SPEEDS WILL EXCEED 80 MPH AT THE 
  SUMMITS TODAY WITH WIDESPREAD 40 MPH WINDS EXPECTED ACROSS THE 
  WARNED AREA. VISIBILITY WILL BE FREQUENTLY REDUCED BELOW ONE 
  MILE IN FALLING AND BLOWING SNOW. 

* IMPACTS...THE PERIODS OF HEAVY SNOW AND STRONG WIND WILL CAUSE 
  SIGNIFICANT DRIFTING ACROSS THE HIGHER MOUNTAIN PASSES AS WELL 
  AS REDUCED VISIBILITY IN FALLING AND BLOWING SNOW. EXPECT 
  TRAVEL TO BE DIFFICULT OVER PASSES TODAY AND TONIGHT. 

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.

&&

$$

WYZ014-015-031000-
/O.CON.KRIW.WW.Y.0032.000000T0000Z-121203T1000Z/
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
217 PM MST SUN DEC 2 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 AM MST
MONDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 AM MST
MONDAY. 

* SUMMARY AND TIMING...STRONG SOUTHWEST WINDS WILL CONTINUE TO
  BLOW WITH SPREADING EAST THROUGH THE AFTERNOON WITH SNOW LEVELS
  LOWERING IN THE LATE AFTERNOON...WITH SNOW BEGINNING TO IMPACT
  SOUTH PASS BY SUNSET...SNOW WILL BECOME HEAVY IN THE EVENING
  BEFORE ENDING ABRUPTLY AFTER MIDNIGHT.

* SNOW ACCUMULATIONS...5 TO 10 INCHES ABOVE 7500 FEET WITH 2 TO 4 
  INCHES EXPECTED AROUND SOUTH PASS. 

* WIND AND VISIBILITY...SOUTHWEST WINDS OF 30 TO 40 MPH WILL BE
  COMMON WITH GUSTS OVER 60 MPH. VISIBILITY WILL BE SHARPLY
  REDUCED IN SNOW AND BLOWING SNOW LATER THIS AFTERNOON AND
  EVENING.

* IMPACTS...VERY STRONG WINDS WILL CREATE DIFFICULT TRAVEL WHICH 
  WILL BE FURTHER IMPACTED BY SNOWFALL WHICH COULD BE HEAVY AT 
  TIMES LATE THIS AFTERNOON AND EVENING. FALLING AND BLOWING 
  SNOW MAY MAKE TRAVEL IMPOSSIBLE OVER SOUTH PASS THIS EVENING. 

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.

&&

$$

375 
WWUS45 KRIW 030558
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
1058 PM MST SUN DEC 2 2012


WYZ001-012-024-030700-
/O.CAN.KRIW.WS.W.0008.000000T0000Z-121203T1000Z/
YELLOWSTONE NATIONAL PARK-TETON AND GROS VENTRE MOUNTAINS-
SALT RIVER AND WYOMING RANGES-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
1058 PM MST SUN DEC 2 2012

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE WINTER
STORM WARNING. 

THE SNOW HAS TAPERED OFF TO SCATTERED SNOW SHOWERS. LITTLE
ACCUMULATION IS EXPECTED OVERNIGHT.

$$

WYZ014-015-030700-
/O.CAN.KRIW.WW.Y.0032.000000T0000Z-121203T1000Z/
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
1058 PM MST SUN DEC 2 2012

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE WINTER
WEATHER ADVISORY. 

THE SNOW HAS TAPERED OFF TO SCATTERED SNOW SHOWERS. LITTLE
ACCUMULATION IS EXPECTED OVERNIGHT. 

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RIVERTON WY
1038 PM MST THU NOV 29 2012

.SHORT TERM...THURSDAY NIGHT THROUGH SUNDAY...ISSUED 210 PM

QUITE A COMPLICATED FORECAST SO WE WILL SPLIT IT INTO WEST OF THE
DIVIDE AND EAST OF THE DIVIDE SECTIONS.

WEST OF THE DIVIDE...QUITE AN ACTIVE PERIOD IS IN STORE AS A FEED OF
PACIFIC MOISTURE AND A SERIES OF SHORTWAVES AND A COLD FRONT BRING
SEVERAL BOUTS OF PRECIPITATION TO THE AREA THROUGH THE WEEKEND. THE
FIRST SHOT WILL MOVE IN FRIDAY MORNING AND PEAK IN INTENSITY FRIDAY
NIGHT. PRECIPITATION IS EXPECTED TO BREAK OUT IN FAR WESTERN WYOMING
FRIDAY MORNING AND BECOME STEADIER DURING THE AFTERNOON AND EVENING.
THE X FACTOR...AND THIS WILL BE A RECURRING THEME...WILL BE THE SNOW
LEVELS. THE MODELS SHOW 700 MILLIBAR TEMPERATURES RUNNING AROUND -3
TO -4 C DROPPING TO -4 TO -5 C AT NIGHT. THIS WOULD CORRESPOND TO
SNOW LEVELS OF AROUND 6500-7000 FEET DURING THE DAY AND 6000-6500
FEET AT NIGHT. THE QUESTION WILL BE HOW MUCH COLD AIR CAN THE SYSTEM
GENERATE WITH DYNAMIC COOLING. FOR NOW...WE HAVE GONE WITH SNOW
LEVELS CLOSE TO THESE LEVELS. OVER 6 INCHES OF SNOW LOOKS LIKELY
INTO SATURDAY MORNING FOR THE HIGHER ELEVATIONS OF THE WEST WITH THE
HIGHEST AMOUNTS IN THE WEST FACING SLOPES OF THE TETONS. IN THE
VALLEYS...IT MAY BE WARM ENOUGH FOR A RAIN AND SNOW MIX THAT WOULD
KEEP ACCUMULATIONS DOWN A BIT.

MODELS THEN INDICATE A BIT OF A LULL FROM SATURDAY AFTERNOON AND
ESPECIALLY SATURDAY NIGHT AS WE WILL BE IN BETWEEN SYSTEMS. THERE
WILL STILL BE SOME SNOW ALTHOUGH RATES WILL BE A BIT LESS. 700
TEMPERATURES WILL BE IN THE -5 RANGE SO SNOW LEVELS OF 6000 TO 6500
FEET LOOK TO BE A GOOD BET.

THE STRONGEST AND WETTEST PUSH LOOKS TO MOVE IN ON SUNDAY AND
ESPECIALLY SUNDAY AFTERNOON AS THE MAIN TROUGH AND ASSOCIATED SHORT
WAVE MOVE THROUGH THE REGION. HOWEVER...THERE WILL BE A PUSH OF
WARMER AIR WITH THIS SYSTEM. MODELS INDICATE 700 MB TEMPERATURES
RISING TO AROUND -1C IN THE SOUTH THAT WOULD PUSH SNOW LEVELS UP TO
8000 FEET TO -3 TO -3.5 IN THE NORTH. AGAIN...THE QUESTION IS HOW
MUCH DYNAMIC COOLING WILL OCCUR SO FOR NOW WE KEPT SNOW LEVELS ON
THE LOWER END OF THE SCALE. AGAIN...HEAVY SNOW LOOKS TO BE A GOOD
BET IN THE HIGHER ELEVATIONS AND SOME MIX WITH RAIN IN THE VALLEYS.
COMPLICATING THIS WILL BE SOME STRONG WINDS BLOWING OVER THE
MOUNTAINS THAT WILL BLOW AND DRIFT THE SNOW AND MAKE TRAVEL VERY
DIFFICULT. AS A RESULT...WE WILL CONTINUE THE WINTER STORM WATCHES.

EAST OF THE DIVIDE...IT WILL CERTAINLY BE A DRIER AND WARMER
FORECAST THAN WEST OF THE DIVIDE. HOWEVER...THE CONCERN HERE WILL BE
FOR THE POTENTIAL OF HIGH WIND. THERE WAS SOME CONCERN FOR
BORDERLINE HIGH WINDS ACROSS PORTIONS OF THE GREEN AND RATTLESNAKE
RANGES FOR FRIDAY AFTERNOON. AT THIS POINT...WE DO NOT THINK WARNING
LEVEL WINDS WILL NOT BE WIDESPREAD ENOUGH FOR A WARNING BUT THIS
WILL HAVE TO BE WATCHED. THERE COULD BE SOME GUSTS TO AROUND 50 MPH
HOWEVER. MANY BASIN LOCATIONS WILL ONCE AGAIN SEE HIGH TEMPERATURES
INTO THE 50S FRIDAY AND SATURDAY AS WELL.

THE REAL CONCERN FOR HIGH WINDS STILL LOOKS TO BE SUNDAY AS THE COLD
FRONT APPROACHES WESTERN WYOMING AND THE PRESSURE GRADIENT TIGHTENS
UP AHEAD OF IT. THE NAM AND GFS SHOW 700 MILLIBAR WINDS OF 50 TO 60
KNOTS ACROSS MUCH OF THE STATE AND WITH GOOD MIXING AHEAD OF THE
COLD FRONT IS SEEMS FAIRLY LIKELY SOME OF THOSE WINDS COULD MIX DOWN
TO THE SURFACE. SO HIGH WIND HIGHLIGHT ARE A DEFINITE POSSIBILITY FOR
SUNDAY. SUNDAY LOOKS TO BE A WARM DAY AS WELL WITH HIGH TEMPERATURES
POSSIBLY PUSHING INTO THE 60S IN SOME OF THE BASIN LOCATIONS.

.LONG TERM...SUNDAY NIGHT THROUGH THURSDAY

THE MAIN TROUGH AND THE ASSOCIATED STRONG PACIFIC COLD FRONT WILL BE
SWEEPING EAST AND SOUTHEAST ACROSS THE CWA SUNDAY EVENING AND WILL
BE ACCOMPANIED WITH VERY STRONG WINDS ACROSS MUCH OF THE CWA AND
HEAVY SNOWFALL IN WESTERN WYOMING WITH SOME OF THE SNOWFALL SPILLING
OVER THE DIVIDE DURING THE NIGHT SUNDAY NIGHT. SOUTH PASS WILL
LIKELY BE ESPECIALLY VULNERABLE TO WHITE OUT CONDITIONS DURING THIS
TIME FRAME AS WILL EXPOSED RIDGES AND PEAKS IN THE FAR WEST. BY
SUNSET SUNDAY EVENING...ANY MIXTURE OF RAIN AND SNOW WILL LIKELY BE
ALL SNOW IN THE FAR WEST VALLEYS. BY THE TIME THE PRECIPITATING
SPILLS OVER TO AREAS EAST OF THE DIVIDE LATER SUNDAY NIGHT...H7
TEMPS SHOULD BE COLD ENOUGH TO SUPPORT SNOW THERE AS WELL. THE MOST
RECENT MODEL RUNS KEEP THE ASSOCIATED H7 CLOSED LOW TRACKING EAST
FARTHER NORTH ACROSS SOUTHERN CANADA ALONG WITH THE ASSOCIATED WEAK
INSTABILITY FARTHER NORTH OVER MONTANA ON MONDAY WHERE AS THE EARLIER
RUNS HAD THE H7 LOW OVER THE NORTHERN PLAINS AND WEAK INSTABILITY
OVER WY. THEREFORE...THE RESULTING IDEAL SET UP FOR CONVECTIVE SNOW
BANDING DOES NOT APPEAR AS LIKELY OVER CENTRAL WYOMING MONDAY AS
EARLIER MODEL RUNS HAD SUGGESTED. WILL RESTRICT MENTION OF ANY SNOW
TO THE MOUNTAINS EAST OF THE DIVIDE ON MONDAY WITH LIGHT SNOW
CONTINUING IN THE WEST. THEN CLEARING IS EXPECTED IN THE WEST BY
MONDAY NIGHT. TEMPERATURES WILL QUICKLY REBOUND TUESDAY AS THE JET
SHIFTS NORTH OF THE AREA. BY WEDNESDAY THE CHANCES OF MOUNTAIN SNOW
AND VALLEY RAIN AND SNOW INCREASE IN THE FAR WEST AS ISENTROPIC LIFT
ENSUES AHEAD OF THE NEXT APPROACHING TROUGH. ON THURSDAY THE PRECIP
WILL SPILL EAST OF THE DIVIDE AND TURN TO ALL SNOW WITH THE
ASSOCIATED PACIFIC COLD FRONT ASSOCIATED WITH THE TROUGH AND AHEAD
OF THE APPROACHING CANADIAN COLD FRONT FRIDAY. ACCORDING TO THE
GFS...H7 TEMPS WEDNESDAY WILL RANGE FROM -3 TO -5C...THEN DROP TO
-10 TO -15C THURSDAY AND THEN DOWN TO -15 TO -20C BY FRIDAY MORNING. THE
ECMWF IS WARMER WITH THE H7 TEMPS WED 0C TO -5C WED...-5C TO -10C
THU AND -10 TO -15 FRIDAY MORNING. WILL SIDE WITH THE GFS
CONSIDERING THE COLD AIR SOURCE.

&&

.AVIATION.../06Z ISSUANCE/

EAST OF THE CONTINENTAL DIVIDE...VFR CONDITIONS WILL PREVAIL THROUGH
06Z SATURDAY. THE BIGHORN MOUNTAINS WILL SEE SOME RAIN AND SNOW
SHOWERS AFTER 00Z SATURDAY THROUGH 06Z SATURDAY. RAIN OR SNOW
SHOWERS ARE POSSIBLE IN SOUTHERN WY AFTER 03Z SATURDAY INCLUDING THE
KRKS AIRPORT. LOCAL MVFR CONDITIONS MAY OCCUR THERE.

WEST OF THE CONTINENTAL DIVIDE...VFR CONDITIONS WILL OCCUR THROUGH
15Z. THEN CLOUDS WILL LOWER WITH PRECIPITATION DEVELOPING ACROSS THE
WESTERN MOUNTAINS AND VALLEYS. MVFR CONDITIONS WILL PREVAIL AFTER
18Z WITH IFR CONDITIONS AT TIMES. MOUNTAINS WILL BE FREQUENTLY
OBSCURED. CONDITIONS WILL NOT IMPROVE MUCH THROUGH 06Z SATURDAY.

&&

.FIRE WEATHER...

A STRONG PACIFIC STORM SYSTEM DELIVERS MORE RAIN AND SNOW TO THE FAR
WEST VALLEYS AND POTENTIALLY HEAVY SNOW TO THE WESTERN MOUNTAINS
FRIDAY AND SATURDAY. A STRONG COLD FRONT WILL SWEEP ACROSS THE AREA
SUNDAY AND SUNDAY NIGHT BRINGING WITH IT STRONG WINDS TO MUCH OF THE
AREA. HEAVIER SNOWFALL IS EXPECTED IN THE WESTERN MOUNTAINS SUNDAY
WITH THE PRECIP IN THE FAR WEST VALLEYS BECOMING ALL SNOW BY SUNDAY
NIGHT. AT THIS POINT...LITTLE OR NO PRECIPITATION IS EXPECTED EAST
OF THE WIND RIVER MOUNTAINS FROM THIS SYSTEM.
&&

.RIW WATCHES/WARNINGS/ADVISORIES...
WINTER STORM WATCH FROM FRIDAY AFTERNOON THROUGH LATE SUNDAY
NIGHT WYZ001-012-024.

&&

SHORT TERM...HATTINGS
LONG TERM...LIPSON
AVIATION...AR
FIRE WEATHER...HATTINGS

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
311 AM MST THU NOV 29 2012

WYZ001>020-022>030-301200-
ABSAROKA MOUNTAINS-BIGHORN MOUNTAINS SOUTHEAST-
BIGHORN MOUNTAINS WEST-CASPER MOUNTAIN-CODY FOOTHILLS-
EAST SWEETWATER COUNTY-FLAMING GORGE-
GREEN MOUNTAINS AND RATTLESNAKE RANGE-JACKSON HOLE-LANDER FOOTHILLS-
NATRONA COUNTY LOWER ELEVATIONS-NORTH BIG HORN BASIN-
NORTHEAST JOHNSON COUNTY-OWL CREEK AND BRIDGER MOUNTAINS-
ROCK SPRINGS AND GREEN RIVER-SALT RIVER AND WYOMING RANGES-
SOUTH LINCOLN COUNTY-SOUTHEAST BIG HORN BASIN-
SOUTHEAST JOHNSON COUNTY-SOUTHWEST BIG HORN BASIN-STAR VALLEY-
TETON AND GROS VENTRE MOUNTAINS-UPPER GREEN RIVER BASIN-
UPPER GREEN RIVER BASIN FOOTHILLS-UPPER WIND RIVER BASIN-
WIND RIVER BASIN-WIND RIVER MOUNTAINS EAST-WIND RIVER MOUNTAINS WEST-
YELLOWSTONE NATIONAL PARK-
311 AM MST THU NOV 29 2012

...WINTER STORM WATCH FOR THE WESTERN MOUNTAINS FROM FRIDAY
AFTERNOON THROUGH SUNDAY NIGHT...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

STRONG WINDS CONTINUE ACROSS THE ABSAROKAS AND WIND RIVER MOUNTAINS
TODAY WITH SOME VERY GUSTY AND ERRATIC WINDS BREAKING THROUGH TO WEST
CODY AND CLARK...ESPECIALLY THIS MORNING.

A QUICK BURST OF SNOW ACROSS THE WESTERN MOUNTAINS EARLY THIS
MORNING MAY MAKE THE MORNING COMMUTE ACROSS TETON PASS DIFFICULT.
THE SNOW WILL TAPER OFF BY NOON.

WINDS WILL INCREASE AGAIN FROM SOUTH PASS TO CASPER TONIGHT WITH
GUSTS OVER 50 MPH FROM THE SOUTHWEST EXPECTED IN NATRONA COUNTY
OVERNIGHT...RESULTING IN A CROSS WIND ALONG HIGHWAY 26 AND
INTERSTATE 25 WHICH COULD MAKE TRAVEL DIFFICULT FOR HIGH PROFILE
VEHICLES AND LIGHT TRAILERS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

PERIODS OF SNOW IN THE FAR WEST MOUNTAINS FRIDAY THROUGH SUNDAY NIGHT
WITH A PERIOD OF SIGNIFICANT SNOW POSSIBLE ALONG WITH STRONG WEST
WIND AT TIMES. THE MOST INTENSE PERIOD OF SNOW AND WIND WILL LIKELY
BE SUNDAY AND SUNDAY NIGHT. THE WESTERN VALLEYS MAY SEE A MIXTURE
OF RAIN AND SNOW.

VERY STRONG SOUTHWEST WINDS AT TIMES FROM JEFFREY CITY TO CASPER AND
IN THE FOOTHILLS OF THE ABSAROKA AND WIND RIVER MOUNTAINS...
ESPECIALLY FRIDAY THROUGH SUNDAY. THE STRONGEST WINDS ARE EXPECTED
ON SUNDAY.

A STRONG COLD FRONT WILL PUSH EAST OF THE DIVIDE SUNDAY NIGHT AND
MONDAY WHICH MAY BRING WINDY TO VERY WINDY CONDITIONS TO ALMOST ALL
AREAS...ESPECIALLY EAST OF THE DIVIDE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

TEAM RIVERTON

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
100 AM MST FRI NOV 30 2012

WYZ002-014-015-302320-
ABSAROKA MOUNTAINS-WIND RIVER MOUNTAINS EAST-
WIND RIVER MOUNTAINS WEST-
100 AM MST FRI NOV 30 2012

WINDS WILL INCREASE ACROSS THE HIGHER ELEVATIONS TODAY WITH GUSTS
OVER 60 MPH EXPECTED BY LATE AFTERNOON. THESE WINDS WILL CONTINUE
THROUGH THE NIGHT. IN ADDITION...PERIODS OF SNOW...MIXED WITH RAIN IN
THE LOWER ELEVATIONS...WILL MOVE IN AFTER NOON AND CONTINUE THROUGH
THE NIGHT. SNOW COULD BE HEAVY AT TIMES ABOVE 8000 FEET...
ESPECIALLY IN THE SOUTHERN AND WESTERN ABSAROKAS AND IN THE WIND
RIVER MOUNTAINS WEST OF WIND RIVER PEAK TODAY...THE SNOW AND RAIN
WILL SPREAD SOUTH AND EAST TONIGHT...IMPACTING SOUTH PASS BY THE
EARLY EVENING HOURS. TRAVELLERS AND OUTDOOR RECREATIONISTS ARE URGED
TO USE CAUTION IN THESE AREAS AS VERY STRONG WINDS AND PERIODS OF
HEAVY PRECIPITATION WILL CONTINUE THROUGH THE WEEKEND.

WYZ011-019-020-302320-
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
NATRONA COUNTY LOWER ELEVATIONS-SOUTHEAST JOHNSON COUNTY-
100 AM MST FRI NOV 30 2012

WINDS WILL BEGIN TO INCREASE OUT OF THE SOUTHWEST TODAY WITH
WIDESPREAD GUSTS OVER 50 MPH EXPECTED BY MID AFTERNOON. THESE
WINDS WILL CONTINUE THROUGH MIDNIGHT TONIGHT. LIGHT TRAILER TRAFFIC
AND HIGH PROFILE VEHICLES SHOULD EXPECT DIFFICULT TRAVEL ALONG
INTERSTATE 25...HIGHWAY 26 BETWEEN CASPER AND SHOSHONI...AND ALONG
789 BETWEEN MUDDY GAP AND BEAVER RIM.

WYZ008-009-022-302320-
BIGHORN MOUNTAINS SOUTHEAST-BIGHORN MOUNTAINS WEST-CASPER MOUNTAIN-
100 AM MST FRI NOV 30 2012

SOUTHWEST WINDS WILL INCREASE ACROSS THE HIGHER ELEVATIONS TODAY
WITH FREQUENT GUSTS OVER 60 MPH EXPECTED BY LATE AFTERNOON. THESE
WINDS WILL CONTINUE THROUGH THE NIGHT. TRAVELLERS AND OUTDOOR
RECREATIONISTS ARE URGED TO USE CAUTION IN THESE AREAS AS VERY STRONG
WINDS WILL CONTINUE THROUGH THE WEEKEND.

WYZ013-023-025-302320-
JACKSON HOLE-STAR VALLEY-UPPER GREEN RIVER BASIN FOOTHILLS-
100 AM MST FRI NOV 30 2012

PERIODS OF RAIN AND SNOW WILL MOVE INTO THE REGION THIS AFTERNOON
AND WILL CONTINUE THROUGH THE WEEKEND. AREAS BELOW 7500 FEET WILL
RECEIVE MAINLY RAIN TODAY...THIS INCLUDES MUCH OF THE JACKSON
VALLEY AND BONDURANT. RAIN WILL MIX WITH SNOW IN SOME AREAS THIS
EVENING AND COULD EVENTUALLY BECOME ALL SNOW OVERNIGHT...WHICH
COULD BE HEAVY AT TIMES. THE SURROUNDING AREAS WILL RECEIVE HEAVY
SNOW AND STRONG WIND THROUGH THE WEEKEND. RESIDENTS AND VISITORS
ARE URGED TO USE CAUTION WHEN TRAVELLING OR SPENDING TIME OUTDOORS
ESPECIALLY IF IT INVOLVES TRAVEL INTO THE HIGHER ELEVATIONS.

19