156
FNUS76 KSGX 220430
FWSSGX
SPOT FORECAST FOR RIDER...RRU
NATIONAL WEATHER SERVICE SAN DIEGO CA
930 PM PDT TUE JUL 21 2026
FORECAST IS BASED ON FORECAST START TIME OF 2200 PDT ON JULY 21.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
..HEAT ADVISORY IN EFFECT FROM 10 AM WEDNESDAY TO 8 PM PDT MONDAY
DISCUSSION
LOCALLY BREEZY NORTHWEST WINDS WILL BECOME LIGHTER OVERNIGHT INTO
WEDNESDAY MORNING. BREEZY NORTHWEST WINDS RETURN BY WEDNESDAY AFTERNOON,
SIMILAR TO THOSE OF TUESDAY. HIGHS IN THE 90S ARE EXPECTED ON WEDNESDAY,
WITH TEMPERATURES EXPECTED TO ECLIPSE 100 DEGREES STARTING THURSDAY THROUGH
THE WEEKEND. HUMIDITY LOWERING NEAR 35% ON WEDNESDAY, BECOMING DRIER BY
THURSDAY INTO THE WEEKEND AS WELL, RANGING BETWEEN 20-30%.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....AROUND 68.
MAX HUMIDITY........72 PERCENT.
EYE LEVEL WINDS.....NORTHWEST WINDS AROUND 4 TO 7 MPH WITH GUSTS TO
12 MPH THIS EVENING, BECOMING LIGHT AFTER MIDNIGHT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHWEST WINDS AROUND 6 TO 8 MPH WITH GUSTS TO
14 MPH THIS EVENING, BECOMING LIGHT AFTER MIDNIGHT.
RIDGETOP...........WEST AROUND 10 TO 15 MPH THIS EVENING, DECREASING TO
AROUND 5 MPH EARLY IN THE MORNING.
CWR.................1 PERCENT.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....WEST 2 TO 7 MPH SHIFTING TO THE SOUTHEAST AFTER
3 AM.
TIME (PDT) 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........4 4 4 4 7 7 7 16
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............78 77 76 75 73 71 70 70
RH..............45 48 50 53 57 61 64 66
20 FT WIND DIR..NW W W W W SW S NW
20 FT WIND SPD..6 3 2 1 1 1 1 1
20 FT WIND GUST.14 11 8 5 4 4 5 5
EYE LVL WND DIR.NW NW NW NW NW NW NW NW
EYE LVL WND SPD.4 3 2 1 1 1 1 1
EYE LVL WND GST.12 9 6 4 3 3 4 4
RIDGE WIND DIR..W W W W W W W W
RIDGE WIND SPD..15 15 10 10 5 5 5 5
CWR.............0 0 0 0 0 0 0 0
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....AROUND 97.
MIN HUMIDITY........36 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS IN THE MORNING, THEN INCREASING
7 TO 10 MPH WITH GUSTS TO AROUND 15 MPH IN THE
AFTERNOON.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS IN THE MORNING, THEN INCREASING
9 TO 12 MPH WITH GUSTS TO AROUND 18 MPH IN THE
AFTERNOON.
RIDGETOP...........SOUTHWEST AROUND 5 MPH.
CWR.................1 PERCENT.
MIXING HEIGHT.......3600 FT AGL.
TRANSPORT WINDS.....WEST 5 TO 10 MPH IN THE LATE MORNING AND EARLY
AFTERNOON, INCREASING TO 15 MPH IN LATE AFTERNOON.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........16 16 11 11 11 4 4 4 2 2 2 4
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............69 69 71 74 80 84 87 91 92 93 93 92
RH..............70 72 70 65 56 50 44 40 39 39 36 38
20 FT WIND DIR..N N SE SE N NW NW NW NW NW NW NW
20 FT WIND SPD..2 2 2 2 3 4 7 8 10 12 12 12
20 FT WIND GUST.5 4 4 6 7 10 11 14 17 18 18 18
EYE LVL WND DIR.NW NW NW NW NW NW NW NW NW NW NW NW
EYE LVL WND SPD.1 1 1 1 2 3 4 5 6 7 7 7
EYE LVL WND GST.4 3 3 4 5 7 10 12 14 14 15 15
RIDGE WIND DIR..SW SW SW SW SW SW SW S S S S S
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...ADAM ROSER
REQUESTED BY...DUTY OFFICER
TYPE OF REQUEST...WILDFIRE
.TAG 2617927.0/SGX
.DELDT 07/21/26
.FORMATTERVERSION 2.0.0
.EMAIL RRUECCCAPTAINS@FIRE.CA.GOV
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