442  
FNUS76 KSGX 172354  
FWSSGX  
 
SPOT FORECAST FOR CHURCH 2...CAL FIRE-SDU  
NATIONAL WEATHER SERVICE SAN DIEGO CA  
454 PM PDT MON AUG 17 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 0800 PDT ON AUGUST 18.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION  
 
FOLLOWING OVERNIGHT MOISTURE RECOVERY NEAR 65 PERCENT OVERNIGHT,  
DAYTIME HUMIDITY SHOULD QUICKLY FALL TO AROUND 12-15 PERCENT BY  
THE LATE MORNING. ONCE THE SEA BREEZE KICKS IN DURING THE LATE  
MORNING, RH SHOULD TICK UP SOME, INTO THE MID TEENS FOR THE  
AFTERNOON HOURS. LIGHT WINDS IN THE MORNING BECOME WESTERLY WITH  
THE SEA BREEZE BY THE LATE MORNING, WITH 20FT GUSTS GENERALLY  
15-18 MPH INTO THE AFTERNOON, TAPERING OFF AROUND 1900-2000.  
OVERNIGHT RECOVERY TUESDAY NIGHT SHOULD BE SIMILAR TO MONDAY  
NIGHT'S, AROUND 65 PERCENT.  
   
TUESDAY  
 
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) BECOMING  
MOSTLY SUNNY (20-30 PERCENT).  
MAX TEMPERATURE.....AROUND 94.  
MIN HUMIDITY........12-15 PERCENT.  
EYE LEVEL WINDS.....LIGHT WINDS BECOMING WEST UP TO 6 MPH WITH  
GUSTS TO AROUND 13 MPH IN THE LATE MORNING AND  
AFTERNOON.  
WIND (20 FT)........  
SLOPE/VALLEY.......LIGHT WINDS IN THE MORNING, BECOMING SOUTHWEST  
5 TO 9 MPH WITH GUSTS 15-18 MPH IN THE LATE  
MORNING AND AFTERNOON.  
RIDGETOP...........SOUTH 10 TO 15 MPH.  
CWR.................0 PERCENT.  
MIXING HEIGHT.......5800 FT AGL.  
TRANSPORT WINDS.....WEST 5 TO 6 MPH SHIFTING TO THE SOUTHWEST 8 TO  
14 MPH LATE IN THE MORNING.  
 
TIME (PDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........22 22 22 23 23 23 28 28 28 42  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............72 79 84 90 92 94 92 93 92 90  
RH..............23 17 15 12 14 16 17 20 21 23  
20 FT WIND DIR..W W SW SW SW SW W W W W  
20 FT WIND SPD..3 5 5 5 6 7 8 8 9 9  
20 FT WIND GUST.8 8 9 10 11 12 15 16 18 18  
EYE LVL WND DIR.W W SW SW SW SW W W W W  
EYE LVL WND SPD.3 3 4 4 4 5 6 6 6 6  
EYE LVL WND GST.6 6 7 7 8 9 9 10 11 11  
RIDGE WIND DIR..S S S S S S S SW SW SW  
RIDGE WIND SPD..15 10 10 15 10 10 15 10 10 15  
CWR.............0 0 0 0 0 0 0 0 0 0  
   
TUESDAY NIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).  
MIN TEMPERATURE.....AROUND 69.  
MAX HUMIDITY........58 PERCENT.  
EYE LEVEL WINDS.....WEST WINDS UP TO 6 MPH WITH GUSTS TO AROUND 10  
MPH EARLY IN THE EVENING BECOMING LIGHT.  
WIND (20 FT)........  
SLOPE/VALLEY.......WEST WINDS AROUND 8 MPH WITH GUSTS TO AROUND 14  
MPH DECREASING TO AROUND 5 MPH EARLY IN THE  
EVENING, THEN BECOMING LIGHT EARLY IN THE  
EVENING.  
RIDGETOP...........SOUTHWEST 10 TO 15 MPH SHIFTING TO THE SOUTH  
LATE IN THE EVENING.  
CWR.................0 PERCENT.  
MIXING HEIGHT.......100 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 8 TO 16 MPH SHIFTING TO THE WEST 5 TO  
6 MPH IN THE LATE EVENING AND OVERNIGHT, THEN  
SHIFTING TO THE NORTHWEST OVERNIGHT.  
 
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........45 45 45 45 45 24 24 24 24 24 24 14  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............89 83 75 71 69 66 64 62 60 59 58 58  
RH..............31 36 47 54 55 57 58 59 61 63 64 65  
20 FT WIND DIR..W W W W SW W W W W W N N  
20 FT WIND SPD..8 7 3 2 2 2 1 1 1 1 0 1  
20 FT WIND GUST.17 14 7 6 5 5 5 4 4  
EYE LVL WND DIR.W W W W SW W W W W W N N  
EYE LVL WND SPD.6 4 2 1 1 1 1 1 1 1 0 1  
EYE LVL WND GST.10 7 5 4 4 4 4 3 3  
RIDGE WIND DIR..SW SW SW S S S S S S S S S  
RIDGE WIND SPD..15 10 10 10 10 15 10 10 15 10 10 15  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
   
WEDNESDAY  
 
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).  
MAX TEMPERATURE.....AROUND 95.  
MIN HUMIDITY........22 PERCENT.  
EYE LEVEL WINDS.....LIGHT WINDS IN THE MORNING.  
WIND (20 FT)........  
SLOPE/VALLEY.......LIGHT WINDS IN THE MORNING.  
RIDGETOP...........LIGHT WINDS IN THE MORNING.  
MIXING HEIGHT.......9600 FT AGL.  
TRANSPORT WINDS.....WEST-SOUTHWEST 7 TO 9 MPH.  
 
TIME (PDT) 6AM 7AM 8AM  
SKY (%).........14 14 14  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............63 67 74  
RH..............61 54 23  
20 FT WIND DIR..N NE E  
20 FT WIND SPD..1 1 1  
20 FT WIND GUST. 4  
EYE LVL WND DIR.N NE E  
EYE LVL WND SPD.1 1 1  
EYE LVL WND GST. 3  
RIDGE WIND DIR..S S S  
RIDGE WIND SPD..10 10 5  
CWR.............0 0 0  
 
 
FORECASTER...DAVID MUNYAN  
REQUESTED BY...PAUL BISSON  
TYPE OF REQUEST...WILDFIRE  
.TAG 2619883.0/SGX  
.DELDT 08/17/26  
.FORMATTERVERSION 2.0.0  
.EMAIL PAUL.BISSON@FIRE.CA.GOV  
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