267  
FNUS75 KFGZ 182216  
FWSFGZ  
 
SPOT FORECAST FOR HORNER GULCH RX...USFS  
NATIONAL WEATHER SERVICE FLAGSTAFF AZ  
316 PM MST MON MAY 18 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 0000 MST ON MAY 19.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE  
NATIONAL WEATHER SERVICE IN FLAGSTAFF, AZ  
   
DISCUSSION
 
COOL AND DRY CONDITIONS EXPECTED THROUGH THE  
FORECAST PERIOD. DAYTIME TEMPERATURES ARE 2-5 DEGREES BELOW  
NORMAL EACH DAY. SOUTHWEST WINDS WITH TYPICAL AFTERNOON BREEZES  
EXPECTED EACH DAY, WITH LIGHT NORTHEAST DRAINAGE WINDS EACH NIGHT.  
   
REST OF TONIGHT
 
 
SKY/WEATHER.........CLEAR.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE LIGHTNING....0 PERCENT.  
MIN TEMPERATURE.....44 TO 46.  
MAX HUMIDITY........40 TO 50 PERCENT.  
WIND (20 FT)........NORTHEAST WINDS 3 TO 6 MPH.  
MIN VENT RATE.......POOR.  
CLEARING INDEX......1.  
MIXING HEIGHT.......0 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 5 KNOTS.  
   
TUESDAY
 
 
SKY/WEATHER.........SUNNY.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE LIGHTNING....0 PERCENT.  
MAX TEMPERATURE.....79 TO 81.  
MIN HUMIDITY........12 TO 13 PERCENT.  
WIND (20 FT)........VARIABLE 3 TO 6 MPH UNTIL 1000 MST, THEN  
SOUTHWEST 7 TO 11 MPH WITH GUSTS TO 20 MPH.  
MAX VENT RATE.......VERY GOOD.  
CLEARING INDEX......891.  
MIXING HEIGHT.......8100 FT AGL.  
TRANSPORT WINDS.....EAST AROUND 5 KNOTS SHIFTING TO THE SOUTH IN  
THE LATE MORNING AND AFTERNOON.  
   
TUESDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE LIGHTNING....0 PERCENT.  
MIN TEMPERATURE.....44 TO 46.  
MAX HUMIDITY........30 TO 35 PERCENT.  
WIND (20 FT)........SOUTHWEST 7 TO 11 MPH WITH GUSTS TO 20 MPH  
UNTIL 2000 MST, THEN EAST THROUGH NORTHEAST  
3 TO 6 MPH THEREAFTER.  
MIN VENT RATE.......POOR.  
CLEARING INDEX......0.  
MIXING HEIGHT.......0 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 KNOTS SHIFTING TO THE NORTH  
OVERNIGHT.  
   
WEDNESDAY
 
 
SKY/WEATHER.........SUNNY.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE LIGHTNING....0 PERCENT.  
MAX TEMPERATURE.....82 TO 84.  
MIN HUMIDITY........11 TO 12 PERCENT.  
WIND (20 FT)........VARIABLE WINDS 2 TO 5 MPH UNTIL 1000 MST, THEN  
SOUTH TO SOUTHWEST WINDS 7 TO 11 MPH WITH GUSTS  
TO 20 MPH  
MAX VENT RATE.......EXCELLENT.  
CLEARING INDEX......1099.  
MIXING HEIGHT.......10000 FT AGL.  
TRANSPORT WINDS.....NORTHEAST AROUND 5 KNOTS SHIFTING TO THE SOUTH  
IN THE LATE MORNING AND 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=34.3696&LON=-112.0587&CLAT=34.3696&CLON=-112.0587  
 

 
FORECASTER...LEWANDOWSKI  
REQUESTED BY...JUAN QUIROGA  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2613968.0/FGZ  
.DELDT 05/18/26  
.FORMATTERVERSION 2.0.0  
.EMAIL JUAN.QUIROGA@USDA.GOV  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab AZ Page Main Text Page