676
FNUS76 KSGX 182138
FWSSGX
SPOT FORECAST FOR HENDERSON...CAL FIRE SDU
NATIONAL WEATHER SERVICE SAN DIEGO CA
238 PM PDT SUN OCT 18 2026
FORECAST IS BASED ON FORECAST START TIME OF 1500 PDT ON OCTOBER 19.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
RELATIVELY LIGHT ONSHORE WINDS ARE EXPECTED MONDAY AFTERNOON, WITH
20FT GUSTS 10-12 MPH. LIGHT WINDS EXPECTED OVERNIGHT, BUT COULD
STILL BE WEAKLY OFFSHORE (E-NE) AROUND 5 MPH. ONSHORE FLOW RESUMES
LATE TUESDAY MORNING AND INTO THE AFTERNOON. HUMIDITY GRADUALLY
INCREASES EACH DAY AS ONSHORE FLOW BECOMES MORE ESTABLISHED.
AFTERNOON MINIMUM HUMIDITY ON MONDAY IS AROUND 40 PERCENT, CLOSER
TO 50 PERCENT ON TUESDAY AFTERNOON. OVERNIGHT RECOVERY TUESDAY
MORNING SHOULD BE NEAR 90 PERCENT.
MONDAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 82.
MIN HUMIDITY........40 PERCENT.
EYE LEVEL WINDS.....WEST WINDS AROUND 4 MPH.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 6 TO 7 MPH, GUSTS UP TO 12 MPH.
RIDGETOP...........SOUTHWEST AROUND 5 MPH.
CWR.................1 PERCENT.
MIXING HEIGHT.......1500 FT AGL.
TRANSPORT WINDS.....WEST 8 TO 9 MPH.
TIME (PDT) 3PM 4PM 5PM
SKY (%).........2 2 7
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............80 79 77
RH..............51 52 55
20 FT WIND DIR..SW SW W
20 FT WIND SPD..7 7 6
20 FT WIND GUST.11 11 11
EYE LVL WND DIR.SW SW W
EYE LVL WND SPD.4 4 4
EYE LVL WND GST.8 8 8
RIDGE WIND DIR..SW SW SW
RIDGE WIND SPD..5 5 5
CWR.............0 0 0
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
MIN TEMPERATURE.....AROUND 61.
MAX HUMIDITY........87 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS.
RIDGETOP...........SOUTHWEST 0 TO 5 MPH SHIFTING TO THE SOUTHEAST
LATE IN THE EVENING.
CWR.................1 PERCENT.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 6 MPH SHIFTING TO THE SOUTHEAST
2 TO 3 MPH EARLY IN THE EVENING, THEN SHIFTING
TO THE EAST IN THE LATE EVENING AND OVERNIGHT.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........7 7 7 7 7 21 21 21 21 21 21 29
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............73 69 67 65 65 64 64 64 64 63 63 63
RH..............65 75 82 85 87 86 87 86 84 83 81 79
20 FT WIND DIR..W W N E E E E E E E E E
20 FT WIND SPD..3 2 0 1 2 2 2 2 2 2 2 2
20 FT WIND GUST.8 6 1 5 6 6 6 6 6 6 6 6
EYE LVL WND DIR.W W S E E E E E E E E E
EYE LVL WND SPD.3 1 1 1 1 1 1 1 1 1 1 1
EYE LVL WND GST.6 5 4 4 4 4 4 4 4 4 4
RIDGE WIND DIR..SW SW SW SW SW SE SE SE SE SE SE SE
RIDGE WIND SPD..5 5 0 0 0 0 5 5 5 5 5 5
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) THEN BECOMING
MOSTLY SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....AROUND 80.
MIN HUMIDITY........49 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING WEST UP TO 6 MPH IN THE
AFTERNOON.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING SOUTHWEST 5 TO 8 MPH
WITH GUSTS UP TO 13 MPH IN THE AFTERNOON.
RIDGETOP...........SOUTHEAST 5 TO 10 MPH.
CWR.................1 PERCENT.
MIXING HEIGHT.......2000 FT AGL.
TRANSPORT WINDS.....EAST AROUND 3 MPH SHIFTING TO THE SOUTH 5 TO 10
MPH LATE IN THE MORNING.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........29 29 29 29 29 13 13 13 13 13 13 10
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............62 62 64 68 73 78 79 80 79 79 77 75
RH..............80 78 73 66 58 52 50 49 50 52 56 61
20 FT WIND DIR..E E E E E S SW SW SW SW SW W
20 FT WIND SPD..2 2 2 2 2 2 3 5 7 8 7 6
20 FT WIND GUST.6 6 5 5 5 6 7 9 13 13 12 10
EYE LVL WND DIR.E E E E E S SW SW SW SW SW W
EYE LVL WND SPD.1 1 1 1 1 1 2 4 5 6 4 4
EYE LVL WND GST.4 4 4 4 4 4 5 7 9 9 9 7
RIDGE WIND DIR..SE SE SE SE SE SE SE SE S S S S
RIDGE WIND SPD..5 5 10 10 10 10 10 10 10 10 10 10
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
FORECASTER...DAVID MUNYAN
REQUESTED BY...CHARLES TYLER
TYPE OF REQUEST...WILDFIRE
.TAG 2623986.0/SGX
.DELDT 10/18/26
.FORMATTERVERSION 2.0.0
.EMAIL CHARLES.TYLER@FIRE.CA.GOV
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