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Special Weather Statement


SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
544 AM MST THU DEC 18 2014

WYZ026-181500-
UPPER GREEN RIVER BASIN-
544 AM MST THU DEC 18 2014

TRAVELLERS SHOULD BE PREPARED FOR AREAS OF DENSE FOG EARLY THIS
MORNING...ESPECIALLY ON HIGHWAY 191 NORTH OF ROCK SPRINGS THROUGH
FARSON AND ON HIGHWAY 28 FROM AROUND FARSON NORTHEAST TOWARDS SOUTH
PASS. AS OF 540 AM THIS MORNING...VISIBILITY AROUND FARSON WAS NEAR
ZERO. PLEASE SLOW DOWN AND BE PREPARED FOR RAPIDLY CHANGING
VISIBILITIES IN AREAS OF FOG THROUGH 9 AM THIS MORNING.

$$

PS

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
534 AM MST THU DEC 18 2014

WYZ001-012-013-024-190000-
JACKSON HOLE-SALT RIVER AND WYOMING RANGES-
TETON AND GROS VENTRE MOUNTAINS-YELLOWSTONE NATIONAL PARK-
534 AM MST THU DEC 18 2014

...MAJOR WINTER STORM POSSIBLE LATE SATURDAY NIGHT THROUGH MONDAY
MORNING...

A STORM SYSTEM OVER THE WESTERN PACIFIC IS EXPECTED TO TAKE AIM ON
WESTERN WYOMING LATE IN THE WEEKEND WITH THE POTENTIAL FOR
SIGNIFICANT SNOWFALL AND WIND. SNOW IS EXPECTED TO START SATURDAY
NIGHT AND POTENTIALLY BECOME HEAVY EARLY SUNDAY AND CONTINUE
THROUGH MONDAY MORNING. SNOWFALL AMOUNTS OF 1 TO 2 FEET ARE POSSIBLE
IN THE MOUNTAINS WITH 6 TO 12 INCHES ACROSS THE JACKSON VALLEY AND
LOWER ELEVATIONS OF YELLOWSTONE NATIONAL PARK. TEMPERATURES WILL
WARM DURING THIS STORM WITH SOME POTENTIAL THAT THE LOWEST PARTS OF
THE JACKSON VALLEY COULD SEE A RAIN SNOW MIXTURE LATE SUNDAY INTO
SUNDAY NIGHT. WINDS WILL ALSO BE ON THE INCREASE DURING THIS STORM
WITH WEST WIND OF 30 TO 40 MPH WITH GUSTS TO 60 MPH IN THE
MOUNTAINS ALONG WITH 20 TO 30 MPH WIND WITH GUSTS TO 40 MPH ACROSS
THE LOWER ELEVATIONS.

STAY TUNED TO FUTURE STATEMENTS AND POTENTIAL WINTER HIGHLIGHTS.
PREPARE NOW IF YOU PLAN ON TRAVELLING ACROSS WESTERN WYOMING THIS
WEEKEND OR EARLY NEXT WEEK.

$$

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
534 AM MST THU DEC 18 2014

WYZ014-025-190000-
UPPER GREEN RIVER BASIN FOOTHILLS-WIND RIVER MOUNTAINS WEST-
534 AM MST THU DEC 18 2014

...MAJOR WINTER STORM POSSIBLE SUNDAY THROUGH MONDAY...

A STORM SYSTEM OVER THE WESTERN PACIFIC IS EXPECTED TO TAKE AIM ON
THE UPPER GREEN RIVER BASIN FOOTHILLS AND WEST SIDE OF THE WIND
RIVER MOUNTAINS SUNDAY THROUGH MONDAY. THE POTENTIAL FOR SIGNIFICANT
SNOWFALL AND WIND IS PROBABLE. SNOW IS EXPECTED TO START LATE
SATURDAY NIGHT AND THEN IT MAY INTENSIFY SUNDAY AND CONTINUE
THROUGH MUCH OF THE DAY MONDAY. SNOWFALL AMOUNTS OVER A FOOT ARE
POSSIBLE ON THE WEST SIDE OF THE WIND RIVER MOUNTAINS...ESPECIALLY
ACROSS THE NORTHWEST HALF WITH 5 TO 10 INCHES OF SNOW POSSIBLE
ACROSS THE LOWER ELEVATIONS FROM PINEDALE TO BONDURANT. THE
HEAVIEST AMOUNTS WILL BE TOWARDS CORA AND BONDURANT.

STAY TUNED TO FUTURE STATEMENTS AND POTENTIAL WINTER HIGHLIGHTS.
PREPARE NOW IF YOU PLAN ON TRAVELLING ACROSS WESTERN WYOMING THIS
WEEKEND OR EARLY NEXT WEEK.

$$

SKRBAC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
324 AM MST THU DEC 18 2014

WYZ018-181400-
LANDER FOOTHILLS-
324 AM MST THU DEC 18 2014

AREAS OF DENSE FOG WILL CONTINUE AROUND THE LANDER FOOTHILLS THROUGH
ABOUT MID MORNING BEFORE LIFTING. AT TIMES...THE VISIBILITY WILL BE
REDUCED TO ONE HALF MILE OR LESS.

MOTORISTS SHOULD BE PREPARED FOR RAPID CHANGES IN VISIBILITY ON AREA
ROADWAYS ALONG WITH POSSIBLE SLICK SPOTS ON THE ROAD.

$$

PS

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
559 AM MST THU DEC 18 2014

IDZ017>025-031-032-191300-
EASTERN MAGIC VALLEY-SAWTOOTH MOUNTAINS-UPPER SNAKE HIGHLANDS-
UPPER SNAKE RIVER PLAIN-LOWER SNAKE RIVER PLAIN-
SOUTH CENTRAL HIGHLANDS-CARIBOU HIGHLANDS-
CACHE VALLEY/IDAHO PORTION-WASATCH MOUNTAINS/IDAHO PORTION-
BIG AND LITTLE WOOD RIVER REGION-LOST RIVER/PAHSIMEROI-
INCLUDING THE CITIES OF...BURLEY...RUPERT...SHOSHONE...CAREY...
STANLEY...CLAYTON...DRIGGS...DUBOIS...ISLAND PARK...ST. ANTHONY...
EDIE SCHOOL...IDAHO FALLS...REXBURG...RIGBY...POCATELLO...
BLACKFOOT...FORT HALL...AMERICAN FALLS...MALAD CITY...OAKLEY...
ROCKLAND...DOWNEY...LAVA HOT SPRINGS...SODA SPRINGS...WAYAN...
PRESTON...DAYTON...MONTPELIER...GEORGETOWN...PARIS...HAILEY...
KETCHUM...SUN VALLEY...BELLEVUE...ARCO...CHALLIS...MACKAY
559 AM MST THU DEC 18 2014

...HEAVY SNOW POSSIBLE IN THE MOUNTAINS OF SOUTHEAST IDAHO
SATURDAY THROUGH MONDAY...

A PATTERN OF RATHER MOIST WESTERLY WINDS OFF THE PACIFIC IS
EXPECTED TO DEVELOP ACROSS SOUTHEAST IDAHO THIS WEEKEND AND MAY
BRING SOME HEAVY SNOW ACCUMULATION TO THE MOUNTAIN AREAS. THERE
IS ALSO POTENTIAL FOR SOME STRONG WINDS OVER THE MOUNTAINS TOPS TO
DEVELOP BY SUNDAY THAT COULD CREATE SOME HAZARDOUS BLOWING AND
DRIFTING CONDITIONS. THIS IS A DEVELOPING SITUATION AND
IMPLICATIONS FOR THE LOWER VALLEYS AND INTERSTATES IS UNCERTAIN AT
THIS TIME ALTHOUGH RAIN IS MAINLY EXPECTED IN THE SNAKE RIVER PLAIN.
IF YOU ARE PLANNING ON TRAVEL THAT WILL INCLUDE MOUNTAIN PASSES
THIS WEEKEND...STAY INFORMED ON THE LATEST WEATHER FORECASTS.


$$

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
508 AM MST THU DEC 18 2014

COZ001>014-017>023-UTZ022>025-027>029-190015-
LOWER YAMPA RIVER BASIN-CENTRAL YAMPA RIVER BASIN-
ROAN AND TAVAPUTS PLATEAUS-ELKHEAD AND PARK MOUNTAINS-
UPPER YAMPA RIVER BASIN-GRAND VALLEY-DEBEQUE TO SILT CORRIDOR-
CENTRAL COLORADO RIVER BASIN-GRAND AND BATTLEMENT MESAS-
GORE AND ELK MOUNTAINS/CENTRAL MOUNTAIN VALLEYS-
CENTRAL GUNNISON AND UNCOMPAHGRE RIVER BASIN-
WEST ELK AND SAWATCH MOUNTAINS-FLATTOPS-
UPPER GUNNISON RIVER VALLEY-UNCOMPAHGRE PLATEAU AND DALLAS DIVIDE-
NORTHWEST SAN JUAN MOUNTAINS-SOUTHWEST SAN JUAN MOUNTAINS-
PARADOX VALLEY/LOWER DOLORES RIVER-
FOUR CORNERS/UPPER DOLORES RIVER-ANIMAS RIVER BASIN-
SAN JUAN RIVER BASIN-SOUTHEAST UTAH-EASTERN UINTA MOUNTAINS-
EASTERN UINTA BASIN-TAVAPUTS PLATEAU-ARCHES/GRAND FLAT-
LA SAL AND ABAJO MOUNTAINS-CANYONLANDS/NATURAL BRIDGES-
INCLUDING THE CITIES OF...RANGELY...DINOSAUR...CRAIG...HAYDEN...
MEEKER...RIO BLANCO...COLUMBINE...TOPONAS...
STEAMBOAT SPRINGS AND VICINITY...GRAND JUNCTION...FRUITA...
PALISADE...RIFLE...SILT...PARACHUTE...MESA...GLENWOOD SPRINGS...
EAGLE...CARBONDALE...SKYWAY...ASPEN...VAIL...SNOWMASS...DELTA...
HOTCHKISS...MONTROSE...CRESTED BUTTE...TAYLOR PARK...MARBLE...
BUFORD...TRAPPERS LAKE...GUNNISON...CIMARRON...RIDGWAY...
GLADE PARK...OURAY...TELLURIDE...LAKE CITY...SILVERTON...RICO...
HESPERUS...GATEWAY...NUCLA...CORTEZ...DOVE CREEK...MANCOS...
DURANGO...BAYFIELD...IGNACIO...PAGOSA SPRINGS AND VICINITY...
BLANDING...BLUFF...MEXICAN HAT...MANILA...DUTCH JOHN...VERNAL...
JENSEN...BALLARD...FORT DUCHESNE...RANDLETT...MOAB...
CASTLE VALLEY...THOMPSON SPRINGS...MONTICELLO AND VICINITY
508 AM MST THU DEC 18 2014

...SIGNIFICANT MOUNTAIN SNOWFALL POSSIBLE SUNDAY AFTERNOON THROUGH
TUESDAY NIGHT...WITH ANOTHER STORM POSSIBLE ON CHRISTMAS DAY...

INCLEMENT WEATHER WILL BE HANGING AROUND EASTERN UTAH AND WESTERN
COLORADO FOR AT LEAST ANOTHER WEEK AS A SERIES OF PACIFIC STORMS
MOVE THROUGH THE REGION. WEAK WAVES OF ENERGY WILL BRING SOME
LIGHT SNOW TO THE MOUNTAINS THROUGH THE END OF THIS WEEK WITH A
BRIEF BREAK ARRIVING SATURDAY AFTERNOON INTO SUNDAY MORNING.

BY SUNDAY AFTERNOON...UPPER LEVEL WINDS WILL BE SWINGING AROUND
TO THE NORTHWEST SENDING A SERIES OF VERY MOIST DISTURBANCES INTO
THE NORTHERN AND CENTRAL MOUNTAINS OF WESTERN COLORADO. THIS
FAVORABLE WIND FLOW COMBINED WITH THE PACIFIC MOISTURE MAY RESULT
IN A PROLONGED PERIOD OF MODERATE TO HEAVY SNOWFALL FROM VAIL PASS
NORTHWARD TO THE WYOMING STATE LINE NEAR STEAMBOAT SPRINGS. EARLY
INDICATIONS SUGGEST WELL OVER A FOOT OF NEW SNOW WILL BE POSSIBLE
BETWEEN SUNDAY AFTERNOON AND LATE TUESDAY EVENING.

LONG RANGE COMPUTER MODELS ARE SUGGESTING ANOTHER STORM WILL PASS
THROUGH THE REGION CHRISTMAS EVE OR ON CHRISTMAS DAY. THIS SYSTEM
WILL HAVE THE POTENTIAL TO BRING SNOW TO EVEN THE LOWER VALLEYS
OF EASTERN UTAH AND WESTERN COLORADO.

WITH HEAVY HOLIDAY TRAVEL ANTICIPATED...THE IMPACT FROM ANY
SNOWFALL LATE THIS WEEKEND THROUGH CHRISTMAS DAY MAY RESULT IN
SIGNIFICANT DELAYS. PLAN AHEAD AND CHECK THE LATEST FORECAST
BEFORE TRAVELING ACROSS EASTERN UTAH AND WESTERN COLORADO.

$$

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NOAA National Weather Service
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Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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