435  
FNUS22 KWNS 281937  
FWDDY2  
 
DAY 2 FIRE WEATHER OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK  
0236 PM CDT SAT JUN 28 2025  
 
VALID 291200Z - 301200Z  
 
A DEPARTING MID-LEVEL TROUGH WILL AID IN SUSTAINING BREEZY NORTHWEST  
WINDS OF 15-20 MPH ACROSS THE INTERSTATE 80 CORRIDOR IN SOUTHWEST  
WYOMING SUNDAY. THE WINDS OVERLAPPING WITH RELATIVE HUMIDITY IN THE  
15-20 PERCENT RANGE AMID A VERY DRY FUELSCAPE WILL SUPPORT ELEVATED  
FIRE WEATHER CONDITIONS ACROSS SOUTHWEST WYOMING. OTHERWISE, FIRE  
WEATHER CONCERNS ACROSS MUCH OF THE WESTERN U.S. WILL BE MITIGATED  
BY A BUILDING UPPER-LEVEL RIDGE BRINGING WARMING TEMPERATURES AND  
GENERALLY LIGHT, TERRAIN-DRIVEN WINDS.  
 
..WILLIAMS.. 06/28/2025  
   
PREV DISCUSSION  
/ISSUED 0203 AM CDT SAT JUN 28 2025/  
   
..SYNOPSIS  
 
UPPER RIDGING IS FORECAST TO STEADILY BUILD OVER THE WEST COAST  
SUNDAY, AS WEAK TROUGHING SHIFTS EASTWARD. AS HEIGHTS CONTINUE TO  
RISE, WEAKENING THE FLOW ALOFT OVER THE NORTHERN ROCKIES, A COLD  
FRONT WILL MOVE OUT OF THE NORTHWEST USHERING IN A COOLER AND HIGHER  
HUMIDITY AIR MASS. SOME RESIDUAL MID-LEVEL FLOW WILL LINGER ACROSS  
WY AND WESTERN CO SUNDAY, BUT SURFACE WINDS ARE EXPECTED TO BE MUCH  
WEAKER AND WILL SHIFT TO NORTHWESTERLY. THE WEAKER WINDS, ALONG WITH  
INCREASING HUMIDITY SHOULD LIMIT BROADER FIRE-WEATHER POTENTIAL.  
SOME LOCALIZED DRY AND BREEZY CONDITIONS WILL REMAIN POSSIBLE OVER  
SOUTHWEST WY, BUT WIDESPREAD FIRE-WEATHER CONCERNS ARE NOT EXPECTED.  
   
..PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT  
 
 
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