896  
WWUS85 KRIW 170258  
RFWRIW  
 
URGENT - FIRE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE RIVERTON WY  
858 PM MDT TUE JUN 16 2026  
 
WYZ280-170400-  
/O.EXP.KRIW.FW.W.0015.000000T0000Z-260617T0300Z/  
NATRONA COUNTY/CASPER BLM-  
858 PM MDT TUE JUN 16 2026  
   
..RED FLAG WARNING WILL EXPIRE AT 9 PM MDT TUESDAY
 
 
RELATIVE HUMIDITY READINGS HAVE SLOWLY RISEN ABOVE CRITICAL  
THRESHOLDS TUESDAY EVENING. GUSTY WEST-NORTHWEST WIND SPEEDS WILL  
CONTINUE TO TREND DOWNWARD. THEREFORE, THE RED FLAG WARNING WILL BE  
ALLOWED TO EXPIRE.  
 
THE PASSAGE OF A COLD FRONT EARLY WEDNESDAY MORNING COOLS  
TEMPERATURES ABOUT 10 DEGREES FROM THOSE OF TUESDAY.  
 

 
 
HTTP://WEATHER.GOV/RIVERTON  
 
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