122  
FNUS75 KPSR 062047  
FWSPSR  
 
SPOT FORECAST FOR BRONCO FIRE...BIA  
NATIONAL WEATHER SERVICE PHOENIX AZ  
147 PM MST WED AUG 6 2025  
 
FORECAST IS BASED ON FORECAST START TIME OF 0600 MST ON AUGUST 07.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
UNUSUALLY HOT CONDITIONS WILL PERSIST THROUGH FRIDAY WITH ISOLATED  
AFTERNOON MOUNTAIN THUNDERSTORMS POTENTIALLY CREATING ABRUPT WIND  
SHIFTS WITH GUSTY OUTFLOWS. GUSTY THUNDERSTORM WINDS WILL BE MOST  
LIKELY LATE THURSDAY AFTERNOON. OTHERWISE, HUMIDITY VALUES WILL  
ONLY INCREASE SLIGHTLY THE NEXT SEVERAL DAYS. OUTSIDE OF THUNDERSTORM  
INDUCED WIND GUSTS, A FEW GUSTS UP TO 15-20 MPH WILL BE COMMON DURING  
THE AFTERNOON HOURS.  
 
   
..THUNDERSTORMS IMPLY GUSTY WINDS
 
 
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND  
IN THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT).  
CWR.................2 PERCENT.  
CHANCE OF THUNDER...10 PERCENT.  
MIN TEMPERATURE.....AROUND 59.  
MAX HUMIDITY........40-45 PERCENT.  
WIND (20 FT)........SOUTHWEST WINDS 4 TO 7 MPH BECOMING LIGHT AND  
VARIABLE WITH A DOWNVALLEY/DOWNCANYON COMPONENT  
2 TO 5 MPH. GUSTY AND ERRATIC WINDS EXPECTED  
NEAR THUNDERSTORMS.  
 
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). HAZE IN THE  
MORNING. AREAS OF SMOKE IN THE AFTERNOON.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN  
THE AFTERNOON.  
CWR.................5 PERCENT.  
CHANCE OF THUNDER...20 PERCENT.  
MAX TEMPERATURE.....AROUND 98.  
MIN HUMIDITY........8-12 PERCENT.  
WIND (20 FT)........LIGHT AND VARIABLE WINDS SHIFTING TO THE  
SOUTHWEST 5 TO 9 MPH IN THE AFTERNOON. 50%  
CHANCE OF GUSTY, EASTERLY OUTFLOW WINDS LATE  
AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED  
NEAR THUNDERSTORMS IN THE AFTERNOON.  
   
THURSDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT).  
CWR.................2 PERCENT.  
CHANCE OF THUNDER...10 PERCENT.  
MIN TEMPERATURE.....AROUND 59.  
MAX HUMIDITY........40-45 PERCENT.  
WIND (20 FT)........GUSTY, ERRATIC WINDS EARLY IN THE EVENING  
BECOMING NORTHEAST 3 TO 8 MPH BY MIDNIGHT.  
GUSTY AND ERRATIC WINDS EXPECTED NEAR  
THUNDERSTORMS.  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY (15-25 PERCENT). SLIGHT CHANCE OF SHOWERS  
AND THUNDERSTORMS IN THE AFTERNOON.  
CWR.................5 PERCENT.  
CHANCE OF THUNDER...15 PERCENT.  
MAX TEMPERATURE.....AROUND 96.  
MIN HUMIDITY........12-18 PERCENT.  
WIND (20 FT)........NORTHEAST WINDS 3 TO 6 MPH IN THE MORNING  
BECOMING SOUTHWEST 4 TO 9 MPH BY NOON. GUSTY AND  
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE  
AFTERNOON.  
 

 
FORECASTER...MO  
REQUESTED BY...SHANE BACA  
TYPE OF REQUEST...WILDFIRE  
.TAG 2519433.0/PSR  
.DELDT 08/06/25  
.FORMATTERVERSION 2.0.0  
.EMAIL MICHAEL.BACA@USDA.GOV  
 
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