003  
FNUS22 KWNS 080653  
FWDDY2  
 
DAY 2 FIRE WEATHER OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK  
0153 AM CDT TUE JUL 08 2025  
 
VALID 091200Z - 101200Z  
   
..SYNOPSIS  
 
A COMPACT MIDLEVEL TROUGH WILL TRACK EASTWARD ACROSS THE NORTHWEST  
DURING THE DAY -- IN TANDEM WITH A ROBUST MIDLEVEL TROUGH/LOW MOVING  
EASTWARD FROM BRITISH COLUMBIA INTO ALBERTA. LARGE-SCALE ASCENT  
PRECEDING THE MIDLEVEL TROUGH MOVING ACROSS THE NORTHWEST WILL  
PROMOTE ANOTHER DAY OF ISOLATED HIGH-BASED THUNDERSTORMS -- WITH A  
FOCUS OVER SOUTHEASTERN OR INTO SOUTHWESTERN ID. DEEP INVERTED-V  
SOUNDINGS AND PW AROUND 0.7 INCHES WILL FAVOR DRY THUNDERSTORMS  
CAPABLE OF PRODUCING LIGHTNING-INDUCED IGNITIONS AND STRONG/ERRATIC  
OUTFLOW WINDS.  
 
SIMILAR TO DAY 1/TUESDAY, A BELT OF STRONG DEEP-LAYER WESTERLY FLOW  
(PERIPHERAL TO THE MIDLEVEL TROUGH) ACROSS THE CASCADES WILL LEAD TO  
BREEZY/GUSTY WESTERLY SURFACE WINDS IN THE COLUMBIA BASIN. WHILE  
INCREASING BOUNDARY-LAYER MOISTURE WILL LIMIT RH REDUCTIONS COMPARED  
TO DAY 1/TUESDAY, STRONGER SURFACE WINDS WILL OFFSET THIS AND STILL  
YIELD ELEVATED FIRE-WEATHER CONDITIONS.  
 
OVER THE GREAT BASIN, MODERATE MIDLEVEL SOUTHWESTERLY WINDS  
ACCOMPANYING THE COMPACT MIDLEVEL TROUGH WILL OVERSPREAD THE GREAT  
BASIN DURING THE DAY. DEEP BOUNDARY-LAYER MIXING INTO THIS  
STRENGTHENING FLOW ALOFT WILL SUPPORT ANOTHER DAY OF ELEVATED TO  
LOCALLY CRITICAL FIRE-WEATHER CONDITIONS, GIVEN INCREASINGLY  
DRY/RECEPTIVE FUELS.  
 
..WEINMAN.. 07/08/2025  
   
..PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT  
 
 
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