543  
FLUS45 KRIW 160844  
HWORIW  
 
HAZARDOUS WEATHER OUTLOOK  
NATIONAL WEATHER SERVICE RIVERTON WY  
244 AM MDT TUE SEP 16 2025  
 
WYZ001>020-022>030-171245-  
YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-CODY FOOTHILLS-  
NORTH BIGHORN BASIN-SOUTHWEST BIGHORN BASIN-SOUTHEAST BIGHORN 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-  
244 AM MDT TUE SEP 16 2025  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.  
   
DAY ONE
 
TODAY AND TONIGHT.  
 
NEAR FREEZING TEMPERATURES EXPECTED THIS MORNING FOR LOWER BASINS  
WEST OF THE DIVIDE.  
 
SHOWERS AND THUNDERSTORMS WILL BE WIDESPREAD ACROSS THE STATE TODAY.  
   
DAYS TWO THROUGH SEVEN
 
WEDNESDAY THROUGH MONDAY.  
 
SHOWERS AND THUNDERSTORMS WILL CONTINUE FOR AREAS EAST OF THE DIVIDE  
ON WEDNESDAY. LOCALLY HEAVY RAINFALL IS POSSIBLE.  
   
SPOTTER INFORMATION STATEMENT
 
 
SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.  
 

 
 
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