543  
WWUS45 KRIW 060718  
WSWRIW  
 
URGENT - WINTER WEATHER MESSAGE  
NATIONAL WEATHER SERVICE RIVERTON WY  
118 AM MDT WED MAY 6 2026  
 
WYZ009-015-060830-  
/O.EXP.KRIW.WW.Y.0018.000000T0000Z-260506T0700Z/  
BIGHORN MOUNTAINS SOUTHEAST-WIND RIVER MOUNTAINS EAST-  
118 AM MDT WED MAY 6 2026  
   
..WINTER WEATHER ADVISORY HAS EXPIRED  
 
THE THREAT HAS ENDED.  
 
 
 
WYZ019-030-061300-  
/O.CON.KRIW.WW.Y.0018.000000T0000Z-260506T1300Z/  
GREEN MOUNTAINS AND RATTLESNAKE RANGE-EAST SWEETWATER COUNTY-  
INCLUDING THE CITIES OF JEFFREY CITY AND WAMSUTTER  
118 AM MDT WED MAY 6 2026  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM MDT THIS  
MORNING...  
 
* WHAT...SNOW. ADDITIONAL SNOW ACCUMULATIONS UP TO ONE INCH.  
 
* WHERE...GREEN MOUNTAINS AND RATTLESNAKE RANGE AND EAST SWEETWATER  
COUNTY.  
 
* WHEN...UNTIL 7 AM MDT THIS MORNING.  
 
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS. THE HAZARDOUS  
CONDITIONS COULD IMPACT THE WEDNESDAY MORNING COMMUTE.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
SLOW DOWN AND USE CAUTION WHILE TRAVELING.  
 
FOR GRAPHICAL DEPICTIONS OF THE SNOWFALL FORECAST, INCLUDING THE  
OFFICIAL NWS FORECAST, HIGH END AMOUNTS, AND LOW END AMOUNTS, VISIT  
HTTPS://WEATHER.GOV/RIW/WINTER .  
 
FOR WINTER ROAD CONDITIONS FROM THE WYOMING DEPARTMENT OF  
TRANSPORTATION, VISIT HTTPS://WYOROAD.INFO .  
 
 
 
 
 
FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE, VISIT  
HTTPS://WEATHER.GOV/RIW/ .  
 
LOWE  
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