214  
FNUS21 KWNS 280518  
FWDDY1  
 
DAY 1 FIRE WEATHER OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK  
1217 AM CDT FRI AUG 28 2026  
 
VALID 281200Z - 291200Z  
   
..SYNOPSIS  
   
..NORTHERN CALIFORNIA INTO SOUTHEAST OREGON  
 
BROAD TROUGHING ACROSS THE WEST COAST WILL PROMOTE MODEST SURFACE  
TROUGH DEVELOPMENT FROM SOUTHEAST OREGON INTO PORTIONS OF THE  
SACRAMENTO VALLEY. SURFACE WINDS OF 15-20 MPH AND AFTERNOON RH OF  
10-20% WILL COMBINE WITH VERY DRY FUELS TO BRING ELEVATED FIRE  
WEATHER CONCERNS.  
   
..NORTHWEST MONTANA  
 
A MODEST MID-LEVEL JET WILL PERSIST ACROSS THE NORTHERN ROCKIES INTO  
THE AFTERNOON. THIS FEATURE, ALONG WITH A SURFACE TROUGH TO THE  
EAST, WILL BRING DRY, DOWNSLOPE WINDS TO THE LEE OF THE TERRAIN IN  
NORTHWEST MONTANA. WINDS OF 15-20 MPH (LOCALLY HIGHER IN  
TERRAIN-FAVORED AREAS) AND 10-20% RH WILL PROMOTE ELEVATED FIRE  
WEATHER DURING THE AFTERNOON.  
   
..SOUTHERN CALIFORNIA COASTAL RANGES INTO SAN JOAQUIN VALLEY  
 
MOISTURE FROM THE REMNANTS OF A TROPICAL SYSTEM WILL BE DRAWN  
NORTHWARD BY THE TROUGH OFF THE WEST COAST. THIS INCREASE IN  
MOISTURE AT MIDLEVELS AND SUBTLE LIFT FROM THE TERRAIN/TROUGH WILL  
CONTRIBUTE TO ISOLATED THUNDERSTORM POTENTIAL. STORM MOTIONS WILL BE  
FAST ENOUGH AND LOW LEVELS DRY ENOUGH TO LIMIT RAINFALL  
ACCUMULATIONS WHERE STORMS CAN DEVELOP. UNCERTAINTY IN STORM  
COVERAGE REMAINS HIGH, BUT DRY FUELS WOULD SUPPORT LIGHTNING  
IGNITIONS.  
   
..SOUTHERN CALIFORNIA TRANSVERSE RANGES  
 
A WEAK OFFSHORE FLOW REGIME WILL BRING 10-15 MPH (LOCALLY HIGHER)  
WINDS WITHIN THE HIGHER TERRAIN. GIVEN THE VERY HOT TEMPERATURES AND  
DRY FUELS, FIRE WEATHER WILL BE ELEVATED DURING THE AFTERNOON.  
 
..WENDT.. 08/28/2026  
   
..PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT  
 
 
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