471
FNUS76 KSGX 240034
FWSSGX
SPOT FORECAST FOR CUYAMACA PRESCRIBED FIRE...CAL FIRE
NATIONAL WEATHER SERVICE SAN DIEGO CA
534 PM PDT THU APR 23 2026
FORECAST IS BASED ON IGNITION TIME OF 1803 PDT ON APRIL 23.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
ONSHORE FLOW WILL PERSIST THROUGH THE REMAINDER OF THE WEEK WITH
AFTERNOON SEABREEZE WINDS GUSTING TO 15-20 MPH. RELATIVE HUMIDITY
AROUND 60-70% THIS EVENING WILL FALL TO NEAR 30% BY FRIDAY
MORNING. ONSHORE FLOW STRENGTHENS FRIDAY EVENING INTO THE WEEKEND
AS A STORM SYSTEM APPROACHES. THIS WILL ALLOW RELATIVE HUMIDITY TO
STAY HIGH WITH OVERNIGHT RECOVERIES NEAR 100% THROUGH THE
WEEKEND. PERSISTENT ELEVATED TO STRONG WINDS EXPECTED ALONG WITH
LIGHT RAIN LATE SATURDAY INTO SUNDAY. 20 FOOT WINDS GUSTING 20-30
MPH AT TIMES. EXACT RAINFALL AMOUNTS ARE UNCERTAIN AT THIS TIME,
BUT THERE IS AN 80% CHANCE FOR WETTING RAIN (0.10").
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).
MIN TEMPERATURE.....AROUND 46.
MAX HUMIDITY........69 PERCENT.
EYE LEVEL WINDS.....WEST WINDS AROUND 4 MPH EARLY IN THE EVENING
BECOMING LIGHT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS AROUND 7 MPH EARLY IN THE EVENING
BECOMING LIGHT.
RIDGETOP...........WEST 10 TO 15 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......0 FT AGL.
TRANSPORT WINDS.....WEST 7 TO 12 MPH.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........7 7 15 15 15 12 12 12 14 14 14 52
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............54 50 50 49 48 48 48 47 48 48 48 48
RH..............62 69 66 58 56 55 55 52 46 44 35 35
20 FT WIND DIR..W W W W NW NW W W W W W W
20 FT WIND SPD..7 5 3 2 2 2 2 2 2 2 2 2
20 FT WIND GUST.12 9 8 6 6 6 6 6 6 5 6 6
EYE LVL WND DIR.W W W W NW NW W W W W W W
EYE LVL WND SPD.4 3 2 1 1 1 1 1 1 1 1 1
EYE LVL WND GST.6 5 4 3 3 3 3 3 3 3 3 3
RIDGE WIND DIR..W W W W W W W W W W W W
RIDGE WIND SPD..10 10 15 10 10 15 10 10 15 10 10 10
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT).
MAX TEMPERATURE.....AROUND 57.
MIN HUMIDITY........32 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING WEST UP TO 7 MPH WITH
GUSTS TO AROUND 11 MPH IN THE AFTERNOON.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING WEST 8 TO 12 MPH WITH
GUSTS TO AROUND 20 MPH.
RIDGETOP...........SOUTHWEST 10 TO 15 MPH INCREASING TO WEST 20 TO
25 MPH IN THE AFTERNOON.
CWR.................0 PERCENT.
MIXING HEIGHT.......2100 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 7 TO 15 MPH INCREASING TO 17 TO 21
MPH IN THE AFTERNOON.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........52 52 27 27 27 39 39 39 19 19 19 49
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............49 50 51 51 52 54 54 55 56 54 53 51
RH..............32 40 42 42 41 42 44 47 48 54 58 64
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..2 2 5 6 7 7 8 9 10 11 12 12
20 FT WIND GUST.6 6 9 11 11 12 14 15 16 18 20 20
EYE LVL WND DIR.W W W W W W W W W W W W
EYE LVL WND SPD.1 1 3 3 4 4 4 5 5 6 6 7
EYE LVL WND GST.3 3 5 6 6 6 7 8 8 9 10 11
RIDGE WIND DIR..W W W SW W SW SW W W W W W
RIDGE WIND SPD..10 10 10 10 10 15 15 20 20 25 25 25
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
FORECASTER...KYLE WHEELER
REQUESTED BY...JOHN CLARK
TYPE OF REQUEST...PRESCRIBED
.TAG 2610792.2/SGX
.DELDT 04/23/26
.FORMATTERVERSION 2.0.0
.EMAIL JOHN.CLARK@FIRE.CA.GOV
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