690  
FNUS75 KFGZ 262259  
FWSFGZ  
 
SPOT FORECAST FOR BILLY FIRE, BELOW 5,000 FT...USFS  
NATIONAL WEATHER SERVICE FLAGSTAFF AZ  
249 PM MST TUE AUG 26 2025  
 
FORECAST IS BASED ON FORECAST START TIME OF 0600 MST ON AUGUST 27.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE IN FLAGSTAFF. AZ  
   
DISCUSSION
 
A CHANCE OF THUNDERSTORMS EXISTS FROM 9AM THROUGH 8PM.  
STORM COVERAGE WILL NOT BE AS WIDESPREAD AS THE LAST COUPLE DAYS.  
MAIN HAZARDS WILL BE BRIEF HEAVY RAIN, GUSTY WINDS UNDER THE STORMS  
AND OUTFLOW BOUNDARIES 20-30 MPH AHEAD OF SOME STORMS.  
THINGS DRY OUT OVERNIGHT WEDNESDAY INTO THURSDAY MORNING. ON  
THURSDAY AN ISOLATED THUNDERSTORM IS POSSIBLE DURING THE AFTERNOON  
BUT CHANCES WILL BE LOWER ON THURSDAY THAN WEDNESDAY.  
   
WEDNESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS THROUGH THE DAY.  
CHANCE OF PCPN......20 PERCENT.  
MAX TEMPERATURE.....91-95.  
MIN HUMIDITY........23-27 PERCENT.  
WIND (20 FT)........SE 5 MPH SHIFTING SW-W 5-10 MPH AT 12PM.  
GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.  
MIXING HEIGHT.......9700 FT AGL.  
TRANSPORT WINDS.....NORTHEAST AROUND O KNOTS SHIFTING TO THE WEST 5 TO  
10 KNOTS IN THE LATE MORNING AND AFTERNOON.  
   
WEDNESDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
CHANCE OF PCPN......10 PERCENT.  
MIN TEMPERATURE.....71-75.  
MAX HUMIDITY........50 PERCENT.  
WIND (20 FT)........W 5 MPH SHIFTING N 0-5 MPH AFTER MIDNIGHT.  
GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.  
MIXING HEIGHT.......100 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 5 KNOTS SHIFTING TO THE NORTH 0 TO  
5 KNOTS OVERNIGHT.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CHANCE OF PCPN......10 PERCENT.  
MAX TEMPERATURE.....94-98.  
MIN HUMIDITY........20-24 PERCENT.  
WIND (20 FT)........N-NE 5 MPH SHIFTING W 10 MPH BETWEEN 12-2PM.  
GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS  
IN THE AFTERNOON.  
MIXING HEIGHT.......9800 FT AGL.  
TRANSPORT WINDS.....NORTHEAST AROUND L KNOTS SHIFTING TO THE SOUTH IN THE  
LATE MORNING AND EARLY AFTERNOON, THEN SHIFTING TO THE  
WEST LATE IN THE AFTERNOON.  
 
A WEATHER FORECAST TABLE FOR YOUR SPOT LOCATION IS LINKED.  
THE INFORMATION PROVIDED BY THIS SITE IS FOR PLANNING PURPOSES ONLY  
AND IS NOT INTENDED TO SUBSTITUTE INFORMATION PROVIDED BY AN OFFICIAL  
NATIONAL WEATHER SERVICE SPOT FORECAST.  
HTTPS://WWW.WEATHER.GOV/DLH/FWD?LAT=33.7686&LON=-110.8164&CLAT=33.7686&CLON=-110.8164  
 

 
FORECASTER...BERNHART  
REQUESTED BY...TOM STEVENS  
TYPE OF REQUEST...WILDFIRE  
.TAG 2520757.0/FGZ  
.DELDT 08/26/25  
.FORMATTERVERSION 2.0.0  
.EMAIL TOM_STEVENS@FIRENET.GOV  
 
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