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Special Weather Statement


SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
327 PM MST THU DEC 18 2014

NEZ002-003-019>021-054-055-095-096-WYZ101>119-191300-
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS-
NIOBRARA COUNTY-NORTH LARAMIE RANGE-
FERRIS/SEMINOE/SHIRLEY MOUNTAINS-SHIRLEY BASIN-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
EAST PLATTE COUNTY-GOSHEN COUNTY-CENTRAL CARBON COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SOUTHWEST CARBON COUNTY-
SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-
LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF...
GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...
HARRISON...AGATE...DOUGLAS...GLENROCK...LUSK...MUDDY GAP...
MEDICINE BOW...BORDEAUX...GLENDO...WHEATLAND...CHUGWATER...
GUERNSEY...TORRINGTON...RAWLINS...SINCLAIR...HANNA...ARLINGTON...
ELK MOUNTAIN...BAGGS...DIXON...SARATOGA...ENCAMPMENT...
RIVERSIDE...CENTENNIAL...ALBANY...WOODS LANDING...LARAMIE...
VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN...
WHITAKER...CHEYENNE...BURNS...CARPENTER...ALBIN...PINE BLUFFS
327 PM MST THU DEC 18 2014

...LIGHT TO MODERATE SNOWFALL EVENT INCREASINGLY LIKELY FOR
CHRISTMAS EVE AND CHRISTMAS DAY ACROSS SOUTHEAST WYOMING AND
WESTERN NEBRASKA...

FOR THE SNOWY...SIERRA MADRE AND LIKELY OVER THE NORTHERN LARAMIE
RANGE...A LONG DURATION HEAVY SNOWFALL EVENT IS LOOKING
INCREASINGLY LIKELY FOR SUNDAY THROUGH TUESDAY...WITH POSSIBLE
SNOWFALL AMOUNTS OVER THESE MOUNTAINS OF 15 TO 30 INCHES IN THE
LONG DURATION SNOWFALL EVENT.

FOR CHRISTMAS EVE...AND CHRISTMAS DAY...THE MODELS ARE NOW COMING
INTO AGREEMENT FOR A POSSIBLE 12 TO 24 HOUR SNOWFALL EVENT ACROSS
MUCH OF SOUTHEAST WYOMING AND TO A LESSER EXTENT OVER WESTERN
NEBRASKA.

OVER CHRISTMAS EVE AND CHRISTMAS DAY...A WELL PRONOUNCED
DISTURBANCE ALOFT WILL MOVE ACROSS OUR REGION...WITH A BAND OF
LIGHT TO MODERATE SNOW LIKELY SETTING UP SOMEWHERE OVER SOUTHERN
WYOMING AND NORTHERN COLORADO...ALTHOUGH THE HEAVIEST SNOWFALL IS
QUITE UNCERTAIN AT THIS TIME...SIX TO SEVEN DAYS AWAY.

WHILE UNCERTAINTY A WEEK AWAY IS STILL GREAT WITH MODEL
UNCERTAINTY...LOWER ELEVATIONS COULD POSSIBLY RECEIVE 1 TO 4
INCHES OF SNOW...WITH 5 TO 10 INCHES OF SNOW OVER THE MOUNTAINS ON
CHRISTMAS EVE AND CHRISTMAS DAY.

WE WILL CONTINUE TO MONITOR THE POSSIBLE SNOWFALL EVENT CLOSELY
OVER THE MOUNTAINS SUNDAY THROUGH TUESDAY...AS WELL AS OVER
MUCH OF SOUTHEAST WYOMING FOR CHRISTMAS EVE AND CHRISTMAS DAY...
SO PLEASE CONTINUE TO MONITOR MEDIA SOURCES...INCLUDING YOUR
NATIONAL WEATHER SERVICE CHEYENNE WEBSITE...AND FACEBOOK AND
TWITTER PAGES.

$$

RUBIN

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.

$$


Hazardous Weather Outlook


HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
1200 PM MST THU DEC 18 2014

WYZ001>020-022>030-191200-
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-
1200 PM MST THU DEC 18 2014

...DENSE FOG ADVISORY FOR THE WIND RIVER BASIN UNTIL 4PM TODAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

AREAS OF DENSE FOG IN THE WIND RIVER BASIN THROUGH THIS AFTERNOON.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

LATE SATURDAY NIGHT THROUGH MONDAY MORNING...SIGNIFICANT SNOWFALL
AND WIND EXPECTED IN THE WESTERN MOUNTAINS AND POSSIBLY THE LOWER
ELEVATIONS...ESPECIALLY FROM THE JACKSON VALLEY NORTHWARD. SNOWFALL
AMOUNTS OF 1 TO 2 FEET ARE POSSIBLE IN THE WESTERN MOUNTAINS WITH
SOME OF THE LOWER ELEVATIONS FROM THE JACKSON VALLEY INTO
YELLOWSTONE NATIONAL PARK POTENTIALLY RECEIVING 6 TO 12 INCHES.
THE AIRMASS DOES WARM CONSIDERABLY ON SUNDAY LEADING TO SOME LOWER
VALLEY LOCATIONS...ESPECIALLY SOUTH OF JACKSON...POTENTIALLY
CHANGING TO A RAIN/SNOW MIXTURE SUNDAY AFTERNOON AND EVENING.

STRONG TO HIGH WINDS ARE ALSO EXPECTED ACROSS THE RED DESERT...
INTERSTATE 80 CORRIDOR...SOUTH PASS AND JEFFREY CITY AREA TO CASPER
SUNDAY INTO MONDAY MORNING AND ALSO THE ABSAROKA MOUNTAINS AND
ADJACENT CODY FOOTHILLS. THE STRONG WINDS ARE THEN EXPECTED TO SHIFT
TO THE NORTHWEST WIND FAVORED AREAS MONDAY INTO MONDAY NIGHT...
ESPECIALLY FROM DUBOIS TO RIVERTON AND FROM THE UPPER GREEN ACROSS
SWEETWATER COUNTY.

WEDNESDAY...A NEW STORM SYSTEM WILL DEVELOP TO OUR WEST SPREADING
SNOW FROM SOUTHWEST TO NORTHEAST ON CHRISTMAS EVE. STAY TUNED OVER
THE NEXT SEVERAL DAYS ON THIS POTENTIAL TRAVEL IMPACTING STORM ON
CHRISTMAS EVE THROUGH CHRISTMAS DAY FOR CENTRAL AND SOUTHWEST
WYOMING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

$$

TEAM RIVERTON

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
1025 AM MST THU DEC 18 2014

COZ030>051-191730-
JACKSON COUNTY BELOW 9000 FEET-
WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET-
GRAND AND SUMMIT COUNTIES BELOW 9000 FEET-
SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/
NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET-
SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/
GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE
9000 FEET-LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET-
JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR
CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET-
CENTRAL AND SOUTHEAST PARK COUNTY-
LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-
BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD
COUNTY-
NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND
ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY-
ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET-
NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY-
CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-
NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN
COUNTY-
SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-
LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY-
1025 AM MST THU DEC 18 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL
COLORADO.

.DAY ONE...TODAY AND TONIGHT

AREAS OF LIGHT SNOW WILL LINGER IN THE MOUNTAINS AS A WEAK UPPER
LEVEL DISTURBANCE MOVES ACROSS THE STATE. ANY ADDITIONAL SNOW
ACCUMULATIONS WILL BE LIGHT...LESS THAN 2 INCHES. ACROSS THE URBAN
CORRIDOR AND NORTHEAST PLAINS IT WILL BE CLOUDY AND HAZY WITH
HIGHS IN THE 30 TO 40 DEGREE RANGE...COLDEST OVER THE FAR
NORTHEAST PLAINS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A FEW SNOW SHOWERS WILL CONTINUE IN THE MOUNTAINS FRIDAY AND
SATURDAY. THE NEXT SIGNIFICANT WEATHER SYSTEM WILL BEGIN MOVING
INTO THE STATE LATE SUNDAY AS A STRONG AND MOIST JET STREAM
APPROACHES FROM THE PACIFIC NORTHWEST. SNOW IS EXPECTED TO
INCREASE IN THE MOUNTAINS ON SUNDAY ALONG WITH GUSTY WINDS OVER
THE FOOTHILLS AND ADJACENT PLAINS SUNDAY NIGHT INTO MONDAY
MORNING. SNOW MAY BE HEAVY IN THE MOUNTAINS ON MONDAY WITH A
SLIGHT CHANCE OF RAIN AND SNOW OVER NORTHEAST COLORADO. DRIER
WEATHER WILL RETURN TUESDAY INTO WEDNESDAY WITH COOLER
TEMPERATURES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
536 AM MST THU DEC 18 2014

COZ001>014-017>023-UTZ022>025-027>029-191300-
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-
536 AM MST THU DEC 18 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN UTAH AND WESTERN
COLORADO.

.DAY ONE...TODAY AND TONIGHT

MORNING RAIN AND SNOW SHOWERS WILL CONTINUE ACROSS WESTERN
COLORADO...WITH SNOWFALL ENDING FROM WEST TO EAST THIS AFTERNOON.
ANOTHER 1 TO 4 INCHES OF SNOW WILL BE POSSIBLE OVER THE MOUNTAINS
OF WEST CENTRAL AND SOUTHWEST COLORADO BEFORE THE SNOW ENDS...WITH
LESS THAN AN INCH EXPECTED ACROSS THE VALLEYS. AREAS OF FOG CAN BE
EXPECTED OVERNIGHT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THE IS A CHANCE OF SNOW FRIDAY NIGHT AND EARLY SATURDAY ACROSS THE
NORTHERN MOUNTAINS...WITH DRY WEATHER EXPECTED ELSEWHERE.

A SERIES OF PACIFIC STORMS ARE THEN EXPECTED TO MOVE THROUGH THE
REGION BEGINNING SUNDAY AFTERNOON AND CONTINUING THROUGH TUESDAY
NIGHT. THIS MAY BRING MODERATE TO HEAVY SNOWFALL TO THE MOUNTAINS
OF WESTERN COLORADO AND EASTERN UTAH...WITH A CHANCE FOR RAIN AND
SNOW OVER THE VALLEYS. SNOWFALL ACCUMULATIONS COULD EXCEED ONE
FOOT ACROSS THE NORTHERN AND CENTRAL MOUNTAINS IN WESTERN
COLORADO...WITH LIGHT AMOUNTS ANTICIPATED ELSEWHERE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

$$

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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