821  
FNUS76 KSGX 132218  
FWSSGX  
 
SPOT FORECAST FOR VALLEY...SAN BERNARDINO NATIONAL FOREST  
NATIONAL WEATHER SERVICE SAN DIEGO CA  
318 PM PDT MON JUL 13 2020  
 
FORECAST IS BASED ON FORECAST START TIME OF 1500 PDT ON JULY 13.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
DRY WEATHER AT THE BURN AREA THIS WEEK. LIGHT WINDS EACH NIGHT AND  
MORNING WILL BECOME WESTERLY AND INCREASE IN THE AFTERNOON BEFORE  
DECREASING AFTER SUNSET.  
   
REST OF TODAY
 
 
MAX TEMPERATURE.....AROUND 80.  
MIN HUMIDITY........25 PERCENT.  
EYE LEVEL WINDS.....WEST WINDS AROUND 8 MPH WITH GUSTS TO 15 MPH.  
WIND (20 FT)........  
SLOPE..............WEST WINDS AROUND 10 MPH WITH GUSTS TO 20 MPH.  
RIDGETOP...........WEST 10 MPH.  
CWR.................0 PERCENT.  
LAL.................  
MIXING HEIGHT.......2500-4000 FT AGL.  
TRANSPORT WINDS.....WEST 10 MPH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....AROUND 63.  
MAX HUMIDITY........35 PERCENT.  
EYE LEVEL WINDS.....NORTHWEST WINDS AROUND 4 MPH WITH GUSTS TO 12  
MPH IN THE EVENING.  
WIND (20 FT)........  
SLOPE..............NORTHWEST WINDS 5 TO 10 MPH WITH GUSTS TO 15  
MPH IN THE EVENING.  
RIDGETOP...........WEST 15 MPH.  
CWR.................0 PERCENT.  
LAL.................1.  
MIXING HEIGHT.......2500 FT AGL...BECOMING 0-500 FT AGL EARLY IN  
THE EVENING.  
TRANSPORT WINDS.....NORTHWEST 5 MPH.  
   
TUESDAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....AROUND 77.  
MIN HUMIDITY........10 PERCENT.  
EYE LEVEL WINDS.....LIGHT WEST WINDS INCREASING TO 5 TO 10 MPH  
WITH GUSTS TO 12 MPH.  
WIND (20 FT)........  
SLOPE..............WEST WINDS 6 TO 12 MPH WITH GUSTS TO 16 MPH.  
RIDGETOP...........SOUTHWEST 13 MPH.  
CWR.................0 PERCENT.  
LAL.................1.  
MIXING HEIGHT.......0-1000 FT AGL...BECOMING 2500-3500 FT AGL LATE  
IN THE MORNING.  
TRANSPORT WINDS.....WEST 5 MPH.  
 

 
FORECASTER...MARK MOEDE  
REQUESTED BY...MICHAEL TROXEL  
TYPE OF REQUEST...WILDFIRE  
.TAG 2009332.0/SGX  
.DELDT 07/13/20  
.EMAIL SM.FS.FICC@USDA.GOV  
 
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