431
FNUS76 KSGX 031900
FWSSGX
SPOT FORECAST FOR BORDER 6...CAL FIRE SDU IMT
NATIONAL WEATHER SERVICE SAN DIEGO CA
1200 PM PDT WED JUN 3 2026
FORECAST IS BASED ON FORECAST START TIME OF 0700 PDT ON JUNE 04.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
WINDS REMAIN FAIRLY LIGHT THROUGHOUT THE PERIOD, WITH TYPICAL
DIURNAL DIRECTION TRENDS. LIGHT, TERRAIN DOMINATED WINDS IN THE
OVERNIGHT AND EARLY MORNING HOURS BECOME WESTERLY BY 1000-1100
EACH DAY, WITH 20FT SPEEDS 5-10 MPH, GUSTING UP TO 15 MPH THROUGH
THE AFTERNOON. AFTERNOON HUMIDITY FALLING TO 35-40 PERCENT. A DEEP
MARINE LAYER ALLOWS HUMIDITY RECOVERY UP NEAR 80 PERCENT IN THE
EARLY MORNING, WITH SOME PATCHY FOG POSSIBLE THURSDAY NIGHT INTO
FRIDAY WITH A SLIGHTLY SHALLOWER MARINE LAYER DEPTH.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....AROUND 87.
MIN HUMIDITY........36 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING WEST UP TO 6 MPH WITH
GUSTS TO AROUND 10 MPH LATE IN THE MORNING.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT IN THE MORNING, THEN BECOMING WEST 6
TO 8 MPH WITH GUSTS TO AROUND 14 MPH LATE
IN THE MORNING.
RIDGETOP...........NORTH AROUND 5 MPH IN THE MORNING INCREASING TO
SOUTH 10 TO 15 MPH LATE IN THE MORNING.
CWR.................0 PERCENT.
MIXING HEIGHT.......1800 FT AGL.
TRANSPORT WINDS.....LIGHT IN THE MORNING, THEN SHIFTING TO
THE WEST 8 TO 10 MPH FOR THE LATE MORNING
AND AFTERNOON.
TIME (PDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........25 15 15 15 5 5 5 3 3 3 3
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............65 69 75 79 82 85 86 86 86 85 84
RH..............59 52 46 41 39 38 37 37 36 37 37
20 FT WIND DIR..SE SW SW SW SW W W W W W W
20 FT WIND SPD..1 1 2 3 6 7 8 8 8 7 6
20 FT WIND GUST.4 4 6 8 10 12 13 14 14 13 11
EYE LVL WND DIR.SE SW SW SW SW W W W W W W
EYE LVL WND SPD.1 1 1 3 4 5 5 6 6 5 4
EYE LVL WND GST.3 3 4 6 7 9 9 10 10 9 8
RIDGE WIND DIR..NW N NE NE S S S S S S S
RIDGE WIND SPD..5 10 0 0 15 10 10 10 10 10 10
CWR.............0 0 0 0 0 0 0 0 0 0 0
THURSDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT). PATCHY FOG EARLY
IN THE MORNING.
MIN TEMPERATURE.....AROUND 60.
MAX HUMIDITY........79 PERCENT.
EYE LEVEL WINDS.....WEST WINDS AROUND 4 MPH EARLY IN THE EVENING
BECOMING LIGHT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS AROUND 5 MPH EARLY IN THE EVENING
BECOMING LIGHT.
RIDGETOP...........SOUTH 0 TO 5 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......100 FT AGL.
TRANSPORT WINDS.....WEST 3 TO 7 MPH SHIFTING TO THE SOUTHEAST EARLY
IN THE MORNING.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........3 3 3 3 3 15 15 15 15 15 15 37
WEATHER COV..... PTY
WEATHER TYPE.... FOG
TSTM COV........
TEMP............82 77 71 67 66 64 64 63 63 62 62 61
RH..............41 49 61 72 78 79 78 78 75 76 75 74
20 FT WIND DIR..W W W W NW S SE SE SE SE S S
20 FT WIND SPD..5 3 2 2 1 1 1 1 1 1 1 1
20 FT WIND GUST.9 8 6 6 5 4 4 4
EYE LVL WND DIR.W W W W NW S SE SE SE SE S S
EYE LVL WND SPD.4 3 2 1 1 1 1 1 1 1 1 1
EYE LVL WND GST.7 6 5 4 4 3 3 3
RIDGE WIND DIR..S S S S S S S S S S S S
RIDGE WIND SPD..5 5 5 5 0 0 5 5 5 5 5 5
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING
MOSTLY SUNNY (5-15 PERCENT). PATCHY FOG IN THE
MORNING.
MAX TEMPERATURE.....AROUND 85.
MIN HUMIDITY........41 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING WEST UP TO 5 MPH LATE IN
THE MORNING.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING WEST 5 TO 7 MPH FOR THE
LATE MORNING AND AFTERNOON.
RIDGETOP...........LIGHT WINDS WITH VARIABLE DIRECTIONS.
CWR.................0 PERCENT.
MIXING HEIGHT.......1700 FT AGL.
TRANSPORT WINDS.....LIGHT IN THE MORNING, THEN SHIFTING TO
THE WEST 9 TO 12 MPH FOR THE LATE MORNING
AND AFTERNOON.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........37 37 37 37 37 10 10 10 10 10 10 9
WEATHER COV.....PTY PTY PTY PTY PTY
WEATHER TYPE....FOG FOG FOG FOG FOG
TSTM COV........
TEMP............61 63 66 71 76 80 83 84 84 84 84 82
RH..............73 69 63 55 48 43 41 41 41 41 41 43
20 FT WIND DIR..N S SW SW SW W W W W W W W
20 FT WIND SPD..0 1 1 2 3 5 6 7 7 7 7 6
20 FT WIND GUST. 4 6 7 9 10 11 12 12 11 11
EYE LVL WND DIR.N S SW SW SW W W W W W W W
EYE LVL WND SPD.0 1 1 1 2 4 4 4 5 5 4 4
EYE LVL WND GST. 3 4 5 7 7 8 9 9 8 8
RIDGE WIND DIR..S E E E SE S S S N N N N
RIDGE WIND SPD..5 5 5 5 5 5 5 0 0 0 0 0
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
FORECASTER...DAVID MUNYAN
REQUESTED BY...SPENCER HENDERSON
TYPE OF REQUEST...WILDFIRE
.TAG 2614907.0/SGX
.DELDT 06/03/26
.FORMATTERVERSION 2.0.0
.EMAIL PATRICK.WALKER@FIRE.CA.GOV,CHARLES.TYLER@FIRE.CA.GOV,CHEYENNE.BORELLO@FIRE.CA.GOV,SPENCER.HENDERSON@FIRE.CA.GOV,JOHN.CLARK@FIRE.CA.GOV,CHRIS.RESNICK@FIRE.CA.GOV
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