weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

Hazardous Weather Outlook


HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
451 AM MST THU DEC 18 2014

UTZ001>016-019>021-517-518-WYZ021-191300-
CACHE VALLEY/UTAH PORTION-NORTHERN WASATCH FRONT-
SALT LAKE AND TOOELE VALLEYS-SOUTHERN WASATCH FRONT-
GREAT SALT LAKE DESERT AND MOUNTAINS-WASATCH MOUNTAIN VALLEYS-
WASATCH MOUNTAINS I-80 NORTH-WASATCH MOUNTAINS SOUTH OF I-80-
WESTERN UINTA MOUNTAINS-WASATCH PLATEAU/BOOK CLIFFS-
WESTERN UINTA BASIN-CASTLE COUNTRY-SAN RAFAEL SWELL-
SANPETE/SEVIER VALLEYS-WEST CENTRAL UTAH-SOUTHWEST UTAH-
UTAHS DIXIE AND ZION NATIONAL PARK-SOUTH CENTRAL UTAH-
GLEN CANYON RECREATION AREA/LAKE POWELL-CENTRAL MOUNTAINS-
SOUTHERN MOUNTAINS-SOUTHWEST WYOMING-
451 AM MST THU DEC 18 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN TWO THIRDS OF
UTAH AND SOUTHWEST WYOMING.

.DAY ONE...TODAY AND TONIGHT

MOSTLY CLOUDY CONDITIONS WILL PREVAIL WITH A SLIGHT CHANCE OF SNOW
SHOWERS IN THE MOUNTAINS TODAY.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

AN EXTENDED PERIOD OF PRECIPITATION IS EXPECTED OVER THE NORTHERN
THIRD OF UTAH AND SOUTHWEST WYOMING SATURDAY THROUGH TUESDAY. THE
HEAVIEST PRECIPITATION IS LIKELY TO OCCUR SUNDAY INTO MONDAY NORTH
OF INTERSTATE 80 AS WEAK DISTURBANCES EMBEDDED IN THE NORTHWEST
FLOW MOVES ACROSS THE REGION. SIGNIFICANT ACCUMULATIONS ARE LIKELY
ABOVE 7500 FEET.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

$$

FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY/ (ALL LOWER CASE)

FOR INFORMATION ON POTENTIAL ROAD TRAVEL IMPACTS VISIT...
HTTP://WWW.UDOTTRAFFIC.UTAH.GOV/ROADWEATHERFORECAST.ASPX

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.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ALBUQUERQUE NM
531 AM MST THU DEC 18 2014

NMZ501>540-191300-
NORTHWEST PLATEAU-CHUSKA MOUNTAINS-FAR NORTHWEST HIGHLANDS-
NORTHWEST HIGHLANDS-WEST CENTRAL PLATEAU-WEST CENTRAL MOUNTAINS-
WEST CENTRAL HIGHLANDS-SOUTHWEST MOUNTAINS-
SAN FRANCISCO RIVER VALLEY-SAN JUAN MOUNTAINS-JEMEZ MOUNTAINS-
WEST SLOPES SANGRE DE CRISTO MOUNTAINS-
NORTHERN SANGRE DE CRISTO MOUNTAINS ABOVE 9500 FEET/RED RIVER-
SOUTHERN SANGRE DE CRISTO MOUNTAINS ABOVE 9500 FEET-
EAST SLOPES SANGRE DE CRISTO MOUNTAINS-UPPER RIO GRANDE VALLEY-
LOWER CHAMA RIVER VALLEY-SANTA FE METRO AREA-ALBUQUERQUE METRO AREA-
LOWER RIO GRANDE VALLEY-SANDIA/MANZANO MOUNTAINS-ESTANCIA VALLEY-
CENTRAL HIGHLANDS-SOUTH CENTRAL HIGHLANDS-UPPER TULAROSA VALLEY-
SOUTH CENTRAL MOUNTAINS-RATON RIDGE/JOHNSON MESA-
FAR NORTHEAST HIGHLANDS-NORTHEAST HIGHLANDS-UNION COUNTY-
HARDING COUNTY-EASTERN SAN MIGUEL COUNTY-GUADALUPE COUNTY-
QUAY COUNTY-CURRY COUNTY-ROOSEVELT COUNTY-DE BACA COUNTY-
CHAVES COUNTY PLAINS-EASTERN LINCOLN COUNTY-SOUTHWEST CHAVES COUNTY-
531 AM MST THU DEC 18 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH AND CENTRAL
NEW MEXICO.

.DAY ONE...TODAY AND TONIGHT

AN UPPER LEVEL TROUGH WILL PRODUCE SCATTERED TO NUMEROUS SNOW
SHOWERS ACROSS THE SOUTHWEST MOUNTAINS THIS AFTERNOON...THEN
SCATTERED ACTIVITY ACROSS THE SOUTH CENTRAL MOUNTAINS TONIGHT.
A FEW INCHES OF SNOW WILL BE POSSIBLE FAVORING WEST FACING SLOPES.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. HOWEVER...WEATHER CAN
CHANGE VERY RAPIDLY. ALWAYS USE THE LATEST FORECASTS...WATCHES AND
WARNINGS FOR PLANNING PURPOSES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

$$

44

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
321 AM MST THU DEC 18 2014

AZZ004>018-037>040-190715-
KAIBAB PLATEAU-MARBLE AND GLEN CANYONS-GRAND CANYON COUNTRY-
COCONINO PLATEAU-YAVAPAI COUNTY MOUNTAINS-
NORTHEAST PLATEAUS AND MESAS HWY 264 NORTHWARD-CHINLE VALLEY-
CHUSKA MOUNTAINS AND DEFIANCE PLATEAU-
LITTLE COLORADO RIVER VALLEY IN COCONINO COUNTY-
LITTLE COLORADO RIVER VALLEY IN NAVAJO COUNTY-
LITTLE COLORADO RIVER VALLEY IN APACHE COUNTY-
WESTERN MOGOLLON RIM-EASTERN MOGOLLON RIM-WHITE MOUNTAINS-
NORTHERN GILA COUNTY-YAVAPAI COUNTY VALLEYS AND BASINS-
OAK CREEK AND SYCAMORE CANYONS-BLACK MESA AREA-
NORTHEAST PLATEAUS AND MESAS SOUTH OF HWY 264-
321 AM MST THU DEC 18 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...
NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN
ARIZONA.

.DAY ONE...TODAY AND TONIGHT

EXPECT LINGERING WINTRY CONDITIONS INTO THIS EVENING AS ANOTHER
FAST MOVING WEATHER DISTURBANCE CROSSES ARIZONA. SNOW LEVELS WILL
RANGE FROM 4500-5000 FEET NEAR THE UTAH BORDER TO 5000-6000 FEET
ACROSS EAST-CENTRAL ARIZONA. AREAS OF FOG ARE ALSO LIKELY THROUGH
MID MORNING. FOR MORE DETAILS GO TO WWW.WEATHER.GOV/FLAGSTAFF.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

MAINLY FAIR WEATHER CONDITIONS ARE ANTICIPATED FROM FRIDAY INTO
THE MIDDLE OF NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
319 AM 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-
319 AM MST THU DEC 18 2014

...DENSE FOG ADVISORY FOR THE WIND RIVER BASIN UNTIL NOON 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 THIS MORNING.

.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

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
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE