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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

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GLASGOW MT
318 AM MST THU DEC 18 2014

MTZ016>027-059>062-191100-
CENTRAL AND SOUTHEAST PHILLIPS-CENTRAL AND SOUTHERN VALLEY-
DANIELS-SHERIDAN-WESTERN ROOSEVELT-PETROLEUM-GARFIELD-MCCONE-
RICHLAND-DAWSON-PRAIRIE-WIBAUX-NORTHERN PHILLIPS-
SOUTHWEST PHILLIPS-NORTHERN VALLEY-EASTERN ROOSEVELT-
318 AM MST THU DEC 18 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST
MONTANA.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

MORE ROUNDS OF MIXED WINTRY PRECIPITATION WILL MOVE THROUGH
NORTHEAST MONTANA FROM LATE FRIDAY NIGHT THROUGH SATURDAY
AFTERNOON...THEN AGAIN ON SUNDAY. TRAVELERS ARE ENCOURAGED TO
STAY UP TO DATE WITH THE LATEST FORECAST INFORMATION.

.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
241 AM CST THU DEC 18 2014

NDZ010-011-017>019-021-022-035-190845-
MOUNTRAIL-WARD-MCKENZIE-DUNN-MERCER-MCLEAN-SHERIDAN-BURLEIGH-
241 AM CST THU DEC 18 2014

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

.DAY ONE...REST OF TONIGHT.

BRIEF PERIODS OF MODERATE TO HEAVY SNOW CAN BE EXPECTED WITH QUICK
REDUCTIONS TO VISIBILITIES. SNOWFALL AMOUNTS OF BETWEEN A HALF
INCH AND ONE INCH POSSIBLE IN ANY AREA THAT RECEIVES A QUICK BURST
OF MODERATE TO HEAVY SNOW.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.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

$$

U.S. Dept. of Commerce
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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