403
FNUS76 KSGX 040151
FWSSGX
SPOT FORECAST FOR GIBBY INCIDENT...CAL FIRE
NATIONAL WEATHER SERVICE SAN DIEGO CA
651 PM PDT THU SEP 3 2026
FORECAST IS BASED ON FORECAST START TIME OF 0000 PDT ON SEPTEMBER 04.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
EXCELLENT OVERNIGHT RECOVERY INTO FRIDAY MORNING, WITH LIGHT WINDS
AND PATCHY MORNING LOW CLOUDS. CLOUDS WILL START TO ERODE AWAY
AFTER SUNRISE, WITH MOSTLY CLEAR SKIES THEREAFTER. SEABREEZE
WINDS ON FRIDAY KICK UP AROUND 10/11AM AND WILL BE SLIGHTLY
WEAKER COMPARED TO THURSDAY, GENERALLY SUSTAINED 6-10 MPH WITH
INTERMITTENT GUSTS UP TO 12-17 MPH THROUGH THE AFTERNOON.
HUMIDITY WILL BOTTOM OUT AROUND 60 PERCENT, WITH LIGHTER WINDS
BELOW 7 MPH AFTER SUNSET ON FRIDAY.
SATURDAY WILL BE ALMOST A RINSE AND REPEAT OF FRIDAY, BUT WITH
SLIGHTLY LOWER HUMIDITY (AROUND 50%) IN THE AFTERNOON HOURS.
REST OF TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT).
MIN TEMPERATURE.....AROUND 60.
MAX HUMIDITY........100 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS.
RIDGETOP...........SOUTHWEST AROUND 5 MPH INCREASING TO AROUND 15
MPH OVERNIGHT, THEN BECOMING WEST AROUND 5 MPH
AFTER 3 AM INCREASING TO SOUTHWEST AROUND 15
MPH EARLY IN THE MORNING.
CWR.................2 PERCENT.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....EAST 3 TO 5 MPH.
TIME (PDT) MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........35 35 42 42 42 51
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............62 62 63 62 62 61
RH..............99 97 95 94 97 96
20 FT WIND DIR..SE SE E E E E
20 FT WIND SPD..3 3 3 3 3 2
20 FT WIND GUST.7 7 7 7 7 6
EYE LVL WND DIR.SE SE E E E E
EYE LVL WND SPD.2 2 2 2 2 1
EYE LVL WND GST.5 5 5 5 5 5
RIDGE WIND DIR..SW SW SW W W SW
RIDGE WIND SPD..5 5 15 5 5 15
CWR.............0 0 0 0 0 0
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 79.
MIN HUMIDITY........60 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING WEST UP TO 5 MPH LATE IN
THE MORNING.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING SOUTHWEST 5 TO 7 MPH LATE
IN THE MORNING.
RIDGETOP...........SOUTHWEST AROUND 10 MPH.
CWR.................1 PERCENT.
MIXING HEIGHT.......2200 FT AGL.
TRANSPORT WINDS.....EAST AROUND 3 MPH SHIFTING TO THE SOUTHWEST 3
TO 9 MPH IN THE LATE MORNING AND EARLY
AFTERNOON, THEN 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 (%).........51 51 27 27 27 1 1 1 0 0 0 5
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............60 60 62 65 69 74 76 77 78 78 77 77
RH..............100 99 100 91 82 71 67 66 60 60 61 60
20 FT WIND DIR..E E E S SW SW SW SW SW SW SW W
20 FT WIND SPD..2 2 2 1 2 5 6 7 7 7 7 6
20 FT WIND GUST.6 6 5 5 6 8 11 11 12 12 11 11
EYE LVL WND DIR.E E E S SW SW SW SW SW SW SW W
EYE LVL WND SPD.1 1 1 1 1 3 4 4 5 4 4 4
EYE LVL WND GST.4 4 4 4 4 6 8 8 9 9 8 8
RIDGE WIND DIR..SW SW SW SW SW SW SW SW SW SW SW SW
RIDGE WIND SPD..10 10 10 10 10 10 10 10 10 10 10 10
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
FRIDAY NIGHT
SKY/WEATHER.........CLEAR (0-10 PERCENT) THEN BECOMING MOSTLY CLEAR
(20-30 PERCENT).
MIN TEMPERATURE.....AROUND 62.
MAX HUMIDITY........93 PERCENT.
EYE LEVEL WINDS.....WEST WINDS AROUND 4 MPH EARLY IN THE EVENING
BECOMING LIGHT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS AROUND 6 MPH DECREASING TO AROUND 5
MPH EARLY IN THE EVENING, THEN BECOMING LIGHT
EARLY IN THE EVENING.
RIDGETOP...........SOUTHEAST AROUND 0 MPH EARLY IN THE EVENING.
CWR.................4 PERCENT.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....WEST 5 TO 7 MPH SHIFTING TO THE SOUTH 2 TO 3
MPH LATE IN THE EVENING, THEN SHIFTING TO THE
EAST AROUND 3 MPH OVERNIGHT.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........5 5 5 5 5 27 27 27 27 27 27 22
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............75 71 68 66 65 65 63 63 63 63 63 63
RH..............64 76 85 89 90 91 93 90 88 87 87 85
20 FT WIND DIR..W W W W NW N E E NE E E NE
20 FT WIND SPD..6 5 3 2 2 2 1 2 1 1 1 1
20 FT WIND GUST.10 8 7 6 6 5 4 5 5 4 4 4
EYE LVL WND DIR.W W W W NW N E E NE E E NE
EYE LVL WND SPD.4 3 3 2 1 1 1 1 1 1 1 1
EYE LVL WND GST.7 6 5 5 4 4 3 4 4 3 3 3
RIDGE WIND DIR..SE SE M M M M M M M M M M
RIDGE WIND SPD..0 0 M M M M M M M M M M
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT) THEN BECOMING
PARTLY CLOUDY (30-40 PERCENT). SLIGHT CHANCE OF
SHOWERS LATE IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 83.
MIN HUMIDITY........51 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING SOUTHWEST UP TO 5 MPH IN
THE AFTERNOON.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING SOUTHWEST 6 TO 7 MPH IN
THE AFTERNOON.
RIDGETOP...........
CWR.................9 PERCENT.
MIXING HEIGHT.......2100 FT AGL.
TRANSPORT WINDS.....EAST AROUND 3 MPH SHIFTING TO THE SOUTHWEST 5
TO 9 MPH IN THE LATE MORNING AND AFTERNOON.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........22 22 22 22 22 31 31 31 31 31 31 35
WEATHER COV..... SCH
WEATHER TYPE.... RW
TSTM COV........
TEMP............62 63 64 68 73 77 80 81 81 82 81 80
RH..............85 85 82 74 65 57 54 53 52 51 51 53
20 FT WIND DIR..NE N N NW SW SW SW SW SW SW SW SW
20 FT WIND SPD..1 1 1 1 2 3 6 6 7 7 7 6
20 FT WIND GUST.4 4 4 4 6 8 10 11 11 12 11 11
EYE LVL WND DIR.NE N N NW SW SW SW SW SW SW SW SW
EYE LVL WND SPD.1 1 1 1 1 3 4 4 4 5 4 4
EYE LVL WND GST.3 3 3 3 4 6 7 8 8 9 8 8
RIDGE WIND DIR..M M M M M M M M M M M M
RIDGE WIND SPD..M M M M M M M M M M M M
CWR.............0 0 0 0 0 10 10 10 10 10 10 10
FORECASTER...LAUREN VILLAFANE
REQUESTED BY...ECC DUTY OFFICER
TYPE OF REQUEST...WILDFIRE
.TAG 2621181.0/SGX
.DELDT 09/03/26
.FORMATTERVERSION 2.0.0
.EMAIL RRUECCCAPTAINS@FIRE.CA.GOV
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