248  
FNUS21 KWNS 030701  
FWDDY1  
 
DAY 1 FIRE WEATHER OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK  
0201 AM CDT SUN AUG 03 2025  
 
VALID 031200Z - 041200Z  
   
..SYNOPSIS
 
 
A MIDLEVEL TROUGH WILL MOVE EASTWARD FROM THE EASTERN PACIFIC INTO  
THE NORTHWEST THROUGH THE PERIOD. WITHIN THE BASE OF THE TROUGH,  
ENHANCED MIDLEVEL WESTERLY FLOW WILL OVERSPREAD A DRY/DEEPLY MIXED  
BOUNDARY LAYER ACROSS THE GREAT BASIN DURING THE AFTERNOON. THIS  
WILL FAVOR BREEZY/GUSTY SURFACE WINDS (AROUND 15-20 MPH) AMID  
SINGLE-DIGIT TO LOWER TEENS RH, AND GIVEN RECEPTIVE FUELS, ELEVATED  
FIRE-WEATHER CONDITIONS ARE EXPECTED.  
 
PRECEDING THE TROUGH, FORCING FOR ASCENT WILL AID IN AFTERNOON  
THUNDERSTORM DEVELOPMENT ACROSS THE NORTHERN GREAT BASIN AND  
INTERMOUNTAIN WEST. ACROSS PARTS OF NORTHERN CA, SOUTHEASTERN OR,  
AND SOUTHWESTERN ID, INVERTED-V SOUNDINGS (AROUND 0.5-0.7 INCH PW)  
AND QUICK STORM MOTIONS WILL LEAD TO MOSTLY DRY THUNDERSTORMS. THESE  
STORMS WILL POSE A RISK OF LIGHTNING-INDUCED IGNITIONS AND  
STRONG-SEVERE OUTFLOW WINDS. FOR DETAILS ON THE SEVERE-STORM RISK,  
SEE THE SPC DAY 1 CONVECTIVE OUTLOOK. A MIX OF WET/DRY THUNDERSTORMS  
(WITH HIGHER STORMS COVERAGE) ARE ALSO EXPECTED FARTHER NORTH ACROSS  
EAST-CENTRAL OR, THOUGH THESE STORMS SHOULD BE ACCOMPANIED BY  
MEASURABLE RAINFALL. LIGHTNING-INDUCED IGNITIONS WILL STILL BE  
POSSIBLE ALONG THE PERIPHERIES OF RAIN CORES.  
 
..WEINMAN.. 08/03/2025  
   
..PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT
 
 

 
 
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