737  
FNUS75 KFGZ 101110  
FWSFGZ  
 
SPOT FORECAST FOR HART...USFS  
NATIONAL WEATHER SERVICE FLAGSTAFF AZ  
410 AM MST MON AUG 10 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 0600 MST ON AUGUST 10.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE  
NATIONAL WEATHER SERVICE IN FLAGSTAFF, AZ  
   
DISCUSSION  
MONSOON ACTIVITY WILL INCREASE TODAY AND CONTINUE THROUGH  
THE WEEK, WITH A POSSIBLE DOWNTURN HEADING INTO NEXT WEEKEND. STORMS ARE  
EXPECTED EACH AFTERNOON/EVENING AND MAY CONTINUE INTO THE OVERNIGHT HOURS.  
EXPECT HEAVY RAINFALL WITH FLASH FLOODING POSSIBLE AND GUSTY OUTFLOW  
WINDS TO 40 MPH. OUTSIDE OF STORMS, EXPECT SOUTHWEST TO NORTHWEST WINDS  
5-15 MPH EACH DAY.  
   
TODAY  
 
SKY/WEATHER.........PARTLY SUNNY TO MOSTLY CLOUDY. A CHANCE OF SHOWERS  
AND THUNDERSTORMS, MAINLY AFTER 1300 MST.  
CHANCE OF PCPN......10 PERCENT IN THE MORNING, INCREASING TO 50 PERCENT  
AFTER 1300 MST.  
CHANCE LIGHTNING....10 PERCENT IN THE MORNING, INCREASING TO 50 PERCENT  
AFTER 1300 MST.  
MAX TEMPERATURE.....83 TO 87 DEGREES.  
MIN HUMIDITY........30 TO 35 PERCENT.  
WIND (20 FT)........LIGHT WINDS IN THE MORNING, BECOMING WEST TO NORTHWEST  
AROUND 5 TO 15 MPH AFTER 1100 MST. GUSTY AND ERRATIC  
WINDS NEAR THUNDERSTORMS IN THE AFTERNOON.  
MAX VENT RATE.......VERY GOOD.  
CLEARING INDEX......766.  
MIXING HEIGHT.......10200 FT AGL IN THE MORNING INCREASING TO 10900  
FT AGL LATE IN THE AFTERNOON, THEN DECREASING  
TO 300 FT AGL LATE IN THE AFTERNOON.  
TRANSPORT WINDS.....NORTH AROUND 5 KNOTS SHIFTING TO THE WEST IN  
THE LATE MORNING AND EARLY AFTERNOON, THEN  
INCREASING TO NORTHWEST AROUND 15 KNOTS LATE IN  
THE AFTERNOON.  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS BEFORE 2200 MST.  
CHANCE OF PCPN......20 PERCENT BEFORE 2200 MST.  
CHANCE LIGHTNING....20 PERCENT BEFORE 2200 MST, DECREASING TO 10 PERCENT  
OVERNIGHT.  
MIN TEMPERATURE.....62 TO 66 DEGREES.  
MAX HUMIDITY........70 TO 75 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS AROUND 5 TO 10 MPH IN THE EVENING,  
BECOMING LIGHT NORTHEAST TO EAST WINDS AROUND 5 MPH  
OVERNIGHT. GUSTY AND ERRATIC WINDS NEAR THUNDERSTORMS  
IN THE EVENING.  
MIN VENT RATE.......POOR.  
CLEARING INDEX......0.  
MIXING HEIGHT.......100 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 5 KNOTS SHIFTING TO THE SOUTHWEST  
OVERNIGHT, THEN SHIFTING TO THE EAST AFTER 3  
AM.  
   
TUESDAY  
 
SKY/WEATHER.........PARTLY SUNNY TO MOSTLY CLOUDY. A CHANCE OF SHOWERS  
AND THUNDERSTORMS AFTER 1300 MST.  
CHANCE OF PCPN......10 PERCENT IN THE MORNING, INCREASING TO 50 PERCENT  
AFTER 1300 MST.  
CHANCE LIGHTNING....0 PERCENT IN THE MORNING, INCREASING TO 50 PERCENT  
AFTER 1300 MST.  
MAX TEMPERATURE.....80 TO 84 DEGREES.  
MIN HUMIDITY........37 TO 42 PERCENT.  
WIND (20 FT)........LIGHT WINDS AROUND 5 MPH IN THE MORNING, BECOMING WEST  
5 TO 15 MPH AFTER 1100 MST. GUSTY AND ERRATIC WINDS  
EAR THUNDERSTORMS IN THE AFTERNOON.  
MAX VENT RATE.......GOOD.  
CLEARING INDEX......432.  
MIXING HEIGHT.......8700 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 5 KNOTS.  
 
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=34.9377&LON=-111.8965&CLAT=34.9377&CLON=-111.8965  
 
 
FORECASTER...MEOLA  
REQUESTED BY...WILL TRAHIN  
TYPE OF REQUEST...WILDFIRE  
.TAG 2619201.2/FGZ  
.DELDT 08/10/26  
.FORMATTERVERSION 2.0.0  
.EMAIL WILLIAM.TRAHIN@USDA.GOV  
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