930  
FNUS75 KFGZ 111215  
FWSFGZ  
 
SPOT FORECAST FOR EVAC PILES RX...FOREST SERVICE  
NATIONAL WEATHER SERVICE FLAGSTAFF AZ  
515 AM MST TUE AUG 11 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 0600 MST ON AUGUST 11.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE  
NATIONAL WEATHER SERVICE IN FLAGSTAFF, AZ  
   
DISCUSSION  
AN ACTIVE MONSOON PATTERN DEVELOPS DURING THIS  
TIME FRAME. EXPECT A GOOD CHANCE OF SHOWERS AND THUNDERSTORMS  
EACH DAY, WITH COOLING TEMPERATURES. WINDS WILL BE LIGHT AND  
QUITE VARIABLE AT TIMES, BUT WILL TREND WESTERLY, OR EVEN  
NORTHWESTERLY, IN THE AFTERNOON HOURS.  
   
TODAY  
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND  
THUNDERSTORMS.  
CHANCE OF PCPN......50 PERCENT.  
CHANCE LIGHTNING....50 PERCENT.  
MAX TEMPERATURE.....84 TO 86.  
MIN HUMIDITY........34 TO 36 PERCENT.  
WIND (20 FT)........VARIABLE WINDS 5 TO 8 MPH, TRENDING WESTERLY  
IN THE AFTERNOON. GUSTY AND ERRATIC WINDS  
EXPECTED NEAR THUNDERSTORMS.  
MAX VENT RATE.......VERY GOOD.  
CLEARING INDEX......895.  
MIXING HEIGHT.......9300 FT AGL.  
TRANSPORT WINDS.....WEST 5 TO 10 KNOTS.  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS  
AND THUNDERSTORMS.  
CHANCE OF PCPN......20 PERCENT.  
CHANCE LIGHTNING....20 PERCENT.  
MIN TEMPERATURE.....58 TO 60.  
MAX HUMIDITY........90 TO 95 PERCENT.  
WIND (20 FT)........SOUTHERLY DRAINAGE WINDS 3 TO 5 MPH. GUSTY AND  
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.  
MIN VENT RATE.......POOR.  
CLEARING INDEX......3.  
MIXING HEIGHT.......200 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 10 KNOTS SHIFTING TO THE SOUTH  
OVERNIGHT.  
   
WEDNESDAY  
 
SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS AND THUNDERSTORMS  
LIKELY.  
CHANCE OF PCPN......60 PERCENT.  
CHANCE LIGHTNING....60 PERCENT.  
MAX TEMPERATURE.....78 TO 80.  
MIN HUMIDITY........42 TO 44 PERCENT.  
WIND (20 FT)........VARIABLE WINDS 5 TO 8 MPH, TRENDING WESTERLY  
IN THE AFTERNOON. GUSTY AND ERRATIC WINDS  
EXPECTED NEAR THUNDERSTORMS.  
MAX VENT RATE.......FAIR.  
CLEARING INDEX......346.  
MIXING HEIGHT.......4300 FT AGL.  
TRANSPORT WINDS.....NORTHEAST 5 TO 10 KNOTS SHIFTING TO THE  
NORTHWEST 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://WEATHER.GOV/DLH/FWD?LAT=34.5317&LON=-112.548&CLAT=34.5317&CLON=-112.548  
 
 
FORECASTER...PETERSON  
REQUESTED BY...JASON HEFFNER  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2619376.0/FGZ  
.DELDT 08/11/26  
.FORMATTERVERSION 2.0.0  
.EMAIL JASON.HEFFNER@USDA.GOV  
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