261  
FNUS76 KSGX 312321  
FWSSGX  
 
SPOT FORECAST FOR BDU GREEN FIRE...CAL FIRE BDU  
NATIONAL WEATHER SERVICE SAN DIEGO CA  
421 PM PDT FRI JUL 31 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 1700 PDT ON JULY 31.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
..HEAT ADVISORY IN EFFECT UNTIL 8 PM PDT SUNDAY
 
 
   
DISCUSSION
 
 
HOT, CLEAR WEATHER CONTINUES THROUGH THE REST OF THE WEEK.  
TYPICAL AFTERNOON BREEZES FROM THE WEST TO WEST-SOUTHWEST EACH DAY  
WITH DOWNSLOPE NORTH-NORTHEAST WINDS OVERNIGHT. DRY DAYTIME  
HUMIDITY IN THE TEENS WITH MODERATE OVERNIGHT RECOVERY. INCREASING  
MIXING HEIGHTS DURING THE AFTERNOONS OVER THE WEEKEND.  
   
REST OF TODAY/TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....AROUND 74 DEGREES.  
MAX HUMIDITY........39% ON THE SLOPES, UP TO 50% NEAR THE CANYON  
BOTTOM.  
EYE LEVEL WINDS.....WEST WINDS AROUND 4 MPH EARLY IN THE EVENING  
BECOMING NORTH-NORTHEAST 1-3 MPH.  
WIND (20 FT)........  
SLOPE/VALLEY.......WEST WINDS 6-8 MPH BECOMING NORTH-NORTHEAST  
1-4 MPH IN THE EVENING.  
RIDGETOP...........WEST-NORTHWEST 5-10 MPH BECOMING VARIABLY NORTH  
TO NORTHEAST AROUND 5 MPH OVERNIGHT.  
CWR.................0 PERCENT.  
MIXING HEIGHT.......DECREASING TO 200 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 3 TO 8 MPH SHIFTING TO THE EAST 2 TO  
3 MPH OVERNIGHT.  
 
TIME (PDT) 5PM 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........9 9 9 8 8 8 9 9 9 9 9 9 23  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............98 96 92 86 82 79 78 78 77 77 77 77 76  
RH..............20 23 26 32 37 39 38 36 34 32 29 29 29  
20 FT WIND DIR..W W W NW NW NW N N N N NE NE NE  
20 FT WIND SPD..6 6 5 3 2 2 3 2 2 2 2 2 1  
20 FT WIND GUST.8 7 6 4 4 4 4 4 4 4 4 4 4  
EYE LVL WND DIR.W W W NW NW NW N N N N NE NE NE  
EYE LVL WND SPD.4 4 3 2 1 1 2 1 1 1 1 1 1  
EYE LVL WND GST.6 5 4 3 3 3 3 3 3 3 3 3 3  
RIDGE WIND DIR..NW W SW N W NW E NW NW NE N NW S  
RIDGE WIND SPD..8 7 6 4 4 5 5 5 5 5 5 0 5  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0 0  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....AROUND 98 DEGREES.  
MIN HUMIDITY........17 PERCENT.  
EYE LEVEL WINDS.....LIGHT WINDS BECOMING WEST 5-7 MPH LATE IN  
THE MORNING.  
WIND (20 FT)........  
SLOPE/VALLEY.......LIGHT WINDS BECOMING WEST 6-10 MPH LATE IN  
THE MORNING.  
RIDGETOP...........SOUTHWEST AROUND 5 MPH SHIFTING TO THE WEST  
5-10 MPH LATE IN THE AFTERNOON.  
CWR.................0 PERCENT.  
MIXING HEIGHT.......INCREASING TO 4700 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST AROUND 2 MPH SHIFTING TO THE WEST 8  
TO 9 MPH LATE IN THE AFTERNOON.  
 
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........23 23 8 8 8 18 18 18 3 3 3 4  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............78 79 84 90 92 94 96 98 99 100 99 98  
RH..............25 24 23 20 20 21 20 18 17 17 17 18  
20 FT WIND DIR..NE E SW SW SW W W W W W W W  
20 FT WIND SPD..2 2 2 2 3 5 5 6 6 7 7 7  
20 FT WIND GUST.4 4 4 4 5 6 6 8 9 9 9 10  
EYE LVL WND DIR.NE E SW SW SW W W W W W W W  
EYE LVL WND SPD.1 1 1 2 3 3 4 4 4 4 5 5  
EYE LVL WND GST.3 3 3 3 4 4 5 6 7 7 7 7  
RIDGE WIND DIR..S S S S S SW SW SW SW SW W W  
RIDGE WIND SPD..5 5 5 5 5 6 6 8 9 9 9 10  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
   
FORECAST DAYS 3 THROUGH 5
 
   
SUNDAY
 
 
MOSTLY CLEAR. LOWS IN THE LOWER 70S. HIGHS IN THE UPPER 90S.  
NORTH-NORTHEAST 1-3 MPH IN THE EVENING THROUGH THE OVERNIGHT  
BECOMING WEST TO WEST-SOUTHWEST 5-10 MPH IN THE AFTERNOON. MAX RH  
AROUND 35%, MIN RH AROUND 19%   
MONDAY
 
 
CLEAR. LOWS IN THE LOWER 70S. HIGHS IN THE MID 90S. NORTH-  
NORTHEAST 1-3 MPH IN THE EVENING THROUGH THE OVERNIGHT BECOMING  
WEST TO WEST-SOUTHWEST 5-10 MPH IN THE AFTERNOON. MAX RH AROUND  
45%, MIN RH AROUND 20%.    
TUESDAY
 
 
CLEAR. LOWS IN THE UPPER 60S. HIGHS IN THE MID 90S. NORTH-  
NORTHEAST 1-3 MPH IN THE EVENING THROUGH THE OVERNIGHT BECOMING  
WEST TO WEST-SOUTHWEST 5-10 MPH IN THE AFTERNOON. MAX RH AROUND  
45%, MIN RH AROUND 19%  
 

 
FORECASTER...CHANDLER PRICE  
REQUESTED BY...GRANT MALINOWSKI IC  
TYPE OF REQUEST...WILDFIRE  
.TAG 2618598.2/SGX  
.DELDT 07/31/26  
.FORMATTERVERSION 2.0.0  
.EMAIL GRANT.MALINOWSKI@FIRE.CA.GOV  
 
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