111
FNUS76 KSGX 210238
FWSSGX
SPOT FORECAST FOR TUSIL INCIDENT...CAL FIRE
NATIONAL WEATHER SERVICE SAN DIEGO CA
738 PM PDT WED MAY 20 2026
FORECAST IS BASED ON FORECAST START TIME OF 0000 PDT ON MAY 21.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
LIGHT EASTERLY WINDS BECOME WESTERLY TONIGHT. OTHERWISE,
EXPECTING A DIURNAL WIND PATTERN THROUGH THE WEEKEND WITH LIGHT
WINDS EACH NIGHT BECOMING EASTERLY IN THE LATE MORNINGS BEFORE
TURNING WESTERLY LATER IN THE AFTERNOONS. RELATIVE HUMIDITY WILL
SLOWLY TREND HIGHER FROM NOW THROUGH THE WEEKEND. MINIMUM
AFTERNOON RH AROUND 25-30% BY SATURDAY.
REST OF TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....AROUND 56.
MAX HUMIDITY........26 PERCENT.
EYE LEVEL WINDS.....NORTHWEST WINDS AROUND 4 MPH.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 6 TO 7 MPH.
RIDGETOP...........NORTHWEST AROUND 10 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....WEST 9 TO 12 MPH.
TIME (PDT) MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........2 2 9 9 9 20
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............63 63 61 61 61 58
RH..............18 18 18 17 16 17
20 FT WIND DIR..W W W W W NW
20 FT WIND SPD..7 6 6 6 6 6
20 FT WIND GUST.11 11 11 11 11 10
EYE LVL WND DIR.W W W W W NW
EYE LVL WND SPD.4 4 4 4 4 4
EYE LVL WND GST.8 8 8 8 8 7
RIDGE WIND DIR..NW NW NW NW NW NW
RIDGE WIND SPD..10 10 10 10 10 10
CWR.............0 0 0 0 0 0
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....AROUND 75.
MIN HUMIDITY........11 PERCENT.
EYE LEVEL WINDS.....NORTHWEST WINDS AROUND 4 MPH EARLY IN THE
MORNING BECOMING LIGHT, THEN BECOMING SOUTHWEST
AROUND 4 MPH WITH GUSTS TO AROUND 10 MPH IN THE
LATE MORNING AND EARLY AFTERNOON SHIFTING TO
THE WEST 5 TO 6 MPH WITH GUSTS TO AROUND 11
MPH.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHWEST WINDS AROUND 5 MPH EARLY IN THE
MORNING BECOMING LIGHT, THEN BECOMING SOUTH 5
TO 7 MPH WITH GUSTS TO AROUND 14 MPH IN THE
LATE MORNING AND EARLY AFTERNOON SHIFTING TO
THE WEST 7 TO 9 MPH WITH GUSTS TO AROUND 15
MPH.
RIDGETOP...........NORTH 5 TO 10 MPH SHIFTING TO THE NORTHEAST IN
THE LATE MORNING AND AFTERNOON, THEN SHIFTING
TO THE NORTH LATE IN THE AFTERNOON.
CWR.................0 PERCENT.
MIXING HEIGHT.......9800 FT AGL.
TRANSPORT WINDS.....NORTHWEST 5 TO 8 MPH SHIFTING TO THE NORTHEAST
IN THE LATE MORNING AND AFTERNOON.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........20 20 11 11 11 1 1 1 1 1 1 4
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............62 70 75 73 72 72 73 73 73 74 73 72
RH..............15 12 11 12 13 14 14 14 15 17 20 24
20 FT WIND DIR..NW NW NW W S S SW SW W W W W
20 FT WIND SPD..5 3 2 2 5 6 6 7 7 7 8 9
20 FT WIND GUST.9 7 6 6 8 11 12 14 14 14 15 15
EYE LVL WND DIR.NW NW NW W S S SW SW W W W W
EYE LVL WND SPD.4 3 1 1 3 4 4 4 5 5 6 6
EYE LVL WND GST.7 5 4 4 6 8 9 10 10 10 11 11
RIDGE WIND DIR..NW N N N NE E E E E NE N N
RIDGE WIND SPD..10 5 5 5 5 5 5 5 5 5 5 5
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
THURSDAY NIGHT
SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....AROUND 57.
MAX HUMIDITY........36 PERCENT.
EYE LEVEL WINDS.....WEST WINDS UP TO 6 MPH. GUSTS UP TO 21 MPH
EARLY IN THE EVENING.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 6 TO 8 MPH. GUSTS UP TO 21 MPH EARLY
IN THE EVENING.
RIDGETOP...........NORTH AROUND 5 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....NORTHWEST 9 TO 10 MPH SHIFTING TO THE WEST 7 TO
9 MPH LATE IN THE EVENING.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........4 4 4 4 4 5 5 5 5 5 5 2
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............70 66 63 64 64 64 64 64 62 62 62 59
RH..............28 33 36 32 28 25 23 22 23 21 20 21
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..8 8 8 8 8 7 7 7 7 6 6 6
20 FT WIND GUST.15 15 15 14 13 12 11 11 11 11 11 10
EYE LVL WND DIR.W W W W W W W W W W W W
EYE LVL WND SPD.6 6 6 6 5 5 5 4 4 4 4 4
EYE LVL WND GST.11 11 11 10 9 9 8 8 8 8 8 7
RIDGE WIND DIR..N N NW N N N N N N N N N
RIDGE WIND SPD..5 5 5 5 5 5 5 5 5 5 5 5
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
FORECASTER...LAUREN VILLAFANE
REQUESTED BY...JOSH BLACK
TYPE OF REQUEST...WILDFIRE
.TAG 2614196.0/SGX
.DELDT 05/20/26
.FORMATTERVERSION 2.0.0
.EMAIL BRICE.SMITH@FIRE.CA.GOV,JOSH.BLACK@FIRE.CA.GOV
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