002  
FLUS45 KRIW 181917  
HWORIW  
 
HAZARDOUS WEATHER OUTLOOK  
NATIONAL WEATHER SERVICE RIVERTON WY  
1217 PM MST THU JAN 18 2018  
 
WYZ001>020-022>030-191200-  
YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-CODY FOOTHILLS-  
NORTH BIG HORN BASIN-SOUTHWEST BIG HORN BASIN-  
SOUTHEAST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS-  
BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST-  
NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY-  
TETON AND GROS VENTRE MOUNTAINS-JACKSON HOLE-  
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-  
UPPER WIND RIVER BASIN-WIND RIVER BASIN-LANDER FOOTHILLS-  
GREEN MOUNTAINS AND RATTLESNAKE RANGE-  
NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN-STAR VALLEY-  
SALT RIVER AND WYOMING RANGES-UPPER GREEN RIVER BASIN FOOTHILLS-  
UPPER GREEN RIVER BASIN-SOUTH LINCOLN COUNTY-  
ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY-  
1217 PM MST THU JAN 18 2018  
 
...WINTER WEATHER ADVISORY NORTHWEST MOUNTAINS LATE TONIGHT  
THROUGH FRIDAY AFTERNOON...  
...WINTER STORM WATCH PARTS OF CENTRAL WYOMING LATE FRIDAY NIGHT  
THROUGH SATURDAY NIGHT...  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.  
   
DAY ONE
 
TODAY AND TONIGHT  
 
HIGH WINDS POSSIBLE FOR PORTIONS OF THE CODY FOOTHILLS, MAINLY IN  
THE VICINITY OF CLARK THROUGH MIDDAY.  
 
STRONG WINDS ARE LIKELY JEFFREY CITY AND CASPER FROM THIS  
AFTERNOON INTO TONIGHT.  
 
SNOW WILL SPREAD INTO THE NORTHWESTERN MOUNTAINS AFTER MIDNIGHT  
TONIGHT.  
   
DAYS TWO THROUGH SEVEN
 
FRIDAY THROUGH WEDNESDAY  
 
FRIDAY MORNING...STRONG TO POSSIBLY HIGH WINDS BETWEEN JEFFREY  
CITY AND CASPER.  
 
FRIDAY THROUGH SATURDAY...SNOW CONTINUING IN THE WEST, TAPERING  
OFF FRIDAY NIGHT. SNOW WILL SPREAD EAST OF THE DIVIDE AND INTO THE  
I-80 CORRIDOR FRIDAY NIGHT AND CONTINUE INTO SATURDAY BEFORE  
ENDING SATURDAY NIGHT. SIGNIFICANT SNOWFALL COULD OCCUR LATE  
FRIDAY NIGHT THROUGH SATURDAY NIGHT ACROSS NATRONA, SOUTHEAST  
FREMONT AND ALL OF SWEETWATER COUNTY.  
   
SPOTTER INFORMATION STATEMENT
 
 
SPOTTERS ARE URGED TO REPORT SNOWFALL AMOUNTS AND WIND GUSTS PAST  
50 MPH.  
 

 
 
TEAM RIVERTON  
 
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