205  
FNUS22 KWNS 210643  
FWDDY2  
 
DAY 2 FIRE WEATHER OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK  
0143 AM CDT WED AUG 21 2019  
 
VALID 221200Z - 231200Z  
   
..SYNOPSIS
 
 
AN UPPER-LEVEL SHORTWAVE TROUGH WILL CONTINUE TO MOVE EAST-NORTHEAST  
ACROSS THE NORTHERN INTERMOUNTAIN WEST TOMORROW. AN ASSOCIATED  
SURFACE COLD FRONT WILL CONTINUE TO MOVE SOUTH AND EAST INTO THE  
GREAT BASIN AND THROUGH MUCH OF THE NORTHERN ROCKIES AND NORTHERN  
CALIFORNIA. WITH A PRE-FRONTAL SURFACE PRESSURE TROUGH RUNNING  
PARALLEL AND AHEAD OF THE COLD FRONT, THE SURFACE PRESSURE GRADIENT  
WILL STRENGTHEN ACROSS THE INTERMOUNTAIN WEST ALONG AND AHEAD OF THE  
COLD FRONT.  
 
ELEVATED CONDITIONS ARE EXPECTED FROM NORTHERN ARIZONA/SOUTHERN  
NEVADA STRETCHING NORTHEASTWARD INTO CENTRAL WYOMING ALONG/AHEAD OF  
THE SURFACE COLD FRONT. SOUTHWEST-WESTERLY SUSTAINED SURFACE WINDS  
OF 15-20 MPH AND RH VALUES OF 8-20% ARE LIKELY TO DEVELOP DURING  
TOMORROW AFTERNOON AND EVENING ACROSS THIS AREA. HIGH CLOUDS MAY  
DRIFT INTO NORTHERN ARIZONA, WHICH COULD LIMIT THE SOUTHERN EXTENT  
OF THE CURRENT ELEVATED AREA.  
 
ELEVATED CONDITIONS ARE ALSO LIKELY TO DEVELOP ACROSS  
CENTRAL/EASTERN PORTIONS OF THE SNAKE RIVER PLAIN AND VICINITY  
TOMORROW AFTERNOON. THE COLD FRONT WILL HAVE PASSED THROUGH THE  
AREA, BUT DAYTIME HEATING SHOULD WARM TEMPERATURES AND MIX THE  
BOUNDARY LAYER ENOUGH TO RESULT IN WEST-SOUTHWEST WINDS OF 15-25 MPH  
AND RH VALUES OF 15-20%.  
 
..NAUSLAR.. 08/21/2019  
   
..PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT
 
 

 
 
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