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HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
1133 PM MST FRI DEC 19 2014

WYZ001>020-022>030-201200-
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-
1133 PM MST FRI DEC 19 2014

...WINTER STORM WATCH FOR PORTIONS OF WESTERN WYOMING SATURDAY
EVENING THROUGH MONDAY MORNING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

PATCHY DENSE FOG IS POSSIBLE IN THE LOW LYING AROUND THE WIND RIVER
BASIN AND LANDER FOOTHILLS BUT WIDESPREAD DENSE FOG IS NO LONGER
EXPECTED.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SUNDAY THROUGH MONDAY...SIGNIFICANT SNOWFALL AND WIND EXPECTED IN
WESTERN WYOMING. SNOWFALL AMOUNTS OF 1 TO 2 FEET ARE POSSIBLE IN THE
WESTERN MOUNTAINS WITH THE LOWER ELEVATIONS AND VALLEYS POTENTIALLY
RECEIVING 5 TO 10 INCHES WITH LOCALLY HIGHER AMOUNTS.

STRONG WINDS ARE ALSO EXPECTED ACROSS THE RED DESERT...INTERSTATE 80
CORRIDOR...SOUTH PASS AND JEFFREY CITY AREA TO CASPER SUNDAY
AFTERNOON INTO MONDAY AND ALSO THE ABSAROKA MOUNTAINS AND ADJACENT
CODY FOOTHILLS WITH STRONG GUSTS. THE GREEN RIVER BASIN AND AREA
FROM DUBOIS TO RIVERTON MAY ALSO BLOW QUITE STRONG ON MONDAY.

WEDNESDAY NIGHT THROUGH CHRISTMAS DAY...A NEW STORM SYSTEM WILL
DEVELOP TO OUR WEST SPREADING SNOW FROM WEST TO EAST. THE POTENTIAL
FOR SIGNIFICANT SNOWFALL IS STILL A POSSIBILITY ACROSS CENTRAL
AND SOUTHWEST WYOMING ON CHRISTMAS DAY. STAY TUNED OVER THE NEXT
SEVERAL DAYS ON THIS POTENTIAL TRAVEL IMPACTING STORM.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT LIMITED VISIBILITIES THIS MORNING.
THANK YOU.

$$

TEAM RIVERTON

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BILLINGS MT
855 PM MST FRI DEC 19 2014

MTZ028>042-056>058-063>068-WYZ098-099-210400-
SOUTHERN WHEATLAND-MUSSELSHELL-TREASURE-NORTHERN ROSEBUD-CUSTER-
FALLON-NORTHERN STILLWATER-YELLOWSTONE-POWDER RIVER-CARTER-
SOUTHERN BIG HORN-EASTERN CARBON-NORTHERN PARK-
NORTHERN SWEET GRASS-GOLDEN VALLEY-RED LODGE FOOTHILLS-
NORTHERN BIG HORN-SOUTHERN ROSEBUD-JUDITH GAP-PARADISE VALLEY-
LIVINGSTON AREA-BEARTOOTH FOOTHILLS-ABSAROKA/BEARTOOTH MOUNTAINS-
CRAZY MOUNTAINS-NORTHEAST BIGHORN MOUNTAINS-SHERIDAN FOOTHILLS-
855 PM MST FRI DEC 19 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
MONTANA...SOUTH CENTRAL MONTANA...SOUTHEAST MONTANA AND NORTH
CENTRAL WYOMING.

.DAY ONE...TONIGHT

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER TONIGHT IS LOW.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

STRONG SOUTHWEST WINDS CAN BE EXPECTED IN THE LIVINGSTON...NYE
AND BIG TIMBER AREAS SATURDAY NIGHT AND SUNDAY. GUSTS TO 60 MPH
ARE POSSIBLE...CAUSING DANGEROUS CROSS WINDS FOR TRAVELERS ON
I-90.

PERIODS OF HEAVY SNOW WILL IMPACT THE BEARTOOTH ABSAROKA
MOUNTAINS SATURDAY NIGHT THROUGH SUNDAY NIGHT. A FOOT OR MORE OF
SNOWFALL IS POSSIBLE ALONG WEST AND NORTHWEST FACING SLOPES
INCLUDING THE MOUNTAINS ABOVE COOKE CITY.

A STORM SYSTEM MAY IMPACT THE REGION OVER THE CHRISTMAS
HOLIDAY...THOUGH THE TRACK AND STRENGTH OF THIS POTENTIAL SYSTEM
REMAINS UNCERTAIN. IT IS STILL TOO EARLY TO PIN POINT SNOW
AMOUNTS BUT PEOPLE PLANNING TO TRAVEL ANY TIME FROM WEDNESDAY
THROUGH NEXT WEEKEND SHOULD CHECK THE LATEST FORECAST BEFORE
SETTING OUT.

.SPOTTER INFORMATION STATEMENT...

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

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BISMARCK ND
610 PM CST FRI DEC 19 2014

NDZ017>020-031>034-040>045-210015-
MCKENZIE-DUNN-MERCER-OLIVER-GOLDEN VALLEY-BILLINGS-STARK-MORTON-
SLOPE-HETTINGER-GRANT-BOWMAN-ADAMS-SIOUX-
610 PM CST FRI DEC 19 2014 /510 PM MST FRI DEC 19 2014/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST NORTH
DAKOTA...SOUTH CENTRAL NORTH DAKOTA AND SOUTHWEST NORTH DAKOTA.

.DAY ONE...TONIGHT.

AREAS OF FOG MAY REDUCE VISIBILITIES AT TIMES LATER TONIGHT.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

CHANCE OF A LIGHT WINTRY MIX OF FREEZING RAIN OR
DRIZZLE...SNOW...SLEET...AND RAIN SATURDAY ACROSS WESTERN AND
CENTRAL NORTH DAKOTA AND AGAIN IN THE WEST SUNDAY. SUNDAY NIGHT
THROUGH MONDAY THERE WILL BE A CHANCE OF LIGHT SNOW ACCUMULATIONS FOR
CENTRAL AND WESTERN NORTH DAKOTA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

&&

MORE INFORMATION...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND
CLIMATE INFORMATION CAN BE FOUND...AT WEATHER.GOV/BIS



$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BISMARCK ND
610 PM CST FRI DEC 19 2014

NDZ005-013-025-035>037-046>048-050-051-210015-
ROLETTE-PIERCE-FOSTER-BURLEIGH-KIDDER-STUTSMAN-EMMONS-LOGAN-
LA MOURE-MCINTOSH-DICKEY-
610 PM CST FRI DEC 19 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
NORTH DAKOTA...SOUTH CENTRAL NORTH DAKOTA AND SOUTHEAST NORTH
DAKOTA.

.DAY ONE...TONIGHT.

AREAS OF FOG MAY REDUCE VISIBILITY AT TIMES LATER TONIGHT.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

CHANCE OF A LIGHT WINTRY MIX OF FREEZING RAIN OR
DRIZZLE...SNOW...SLEET...AND RAIN SATURDAY ACROSS WESTERN AND
CENTRAL NORTH DAKOTA AND AGAIN IN THE WEST SUNDAY. SUNDAY NIGHT
THROUGH MONDAY THERE WILL BE A CHANCE OF LIGHT SNOW ACCUMULATIONS FOR
CENTRAL AND WESTERN NORTH DAKOTA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

&&

MORE INFORMATION...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND
CLIMATE INFORMATION CAN BE FOUND...AT WEATHER.GOV/BIS



$$
TWH

HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE NORTH PLATTE NE
333 PM CST FRI DEC 19 2014

NEZ004>010-022>029-035>038-056>059-069>071-094-202145-
SHERIDAN-EASTERN CHERRY-KEYA PAHA-BOYD-BROWN-ROCK-HOLT-GARDEN-
GRANT-HOOKER-THOMAS-BLAINE-LOUP-GARFIELD-WHEELER-ARTHUR-MCPHERSON-
LOGAN-CUSTER-DEUEL-KEITH-PERKINS-LINCOLN-CHASE-HAYES-FRONTIER-
WESTERN CHERRY-
333 PM CST FRI DEC 19 2014 /233 PM MST FRI DEC 19 2014/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN AND
NORTH CENTRAL NEBRASKA.

.DAY ONE...TONIGHT.

AREAS OF FOG REDUCING VISIBILITIES TO LESS THAN ONE MILE AT TIMES
WILL BE POSSIBLE EAST OF A LINE FROM BUTTE TO BROKEN BOW AND
BURWELL TONIGHT INTO THE EARLY MORNING HOURS SATURDAY. WITH
TEMPERATURES BELOW FREEZING SOME SLICK SPOTS MAY DEVELOP ON
ROADWAYS IN THIS AREA.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

A LOW PRESSURE SYSTEM WILL MOVE QUICKLY THROUGH THE NORTHERN AND
CENTRAL PLAINS LATE SUNDAY NIGHT INTO MONDAY AND MONDAY NIGHT.
THERE IS A POSSIBILITY OF RAIN AND SNOW ASSOCIATED WITH THE SYSTEM
ACROSS WESTERN AND NORTH CENTRAL NEBRASKA...ENDING AS SNOW EARLY
TUESDAY AS COLDER AIR MOVES SOUTH. NORTHWEST WIND WILL INCREASE AS
WELL THROUGH THE DAY MONDAY.

THEN...A STORM SYSTEM IS EXPECTED TO CROSS THE CENTRAL AND NORTHERN
ROCKIES TOWARD THE MIDDLE OF NEXT WEEK AND MAY IMPACT THE CENTRAL
PLAINS LATE THURSDAY AND INTO FRIDAY NEXT WEEK. SOME SNOW
ACCUMULATIONS ARE POSSIBLE ACROSS WESTERN AND NORTH CENTRAL
NEBRASKA LATE CHRISTMAS DAY AND INTO FRIDAY....HOWEVER THE TRACK
OF THE SYSTEM IS STILL IN QUESTION. THOSE PLANNING TRAVEL ACROSS
NEBRASKA NEXT WEEK SHOULD KEEP UP TO DATE WITH THE LATEST
FORECASTS FOR ADDITIONAL INFORMATION.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.

&&

GET YOUR WEATHER...HYDROLOGICAL...AND CLIMATE INFORMATION AT
HTTP://WWW.WEATHER.GOV/NORTHPLATTE (ALL LOWERCASE)

$$

JWS

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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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