840
FNUS76 KSGX 171944
FWSSGX
SPOT FORECAST FOR MATEO...USFS
NATIONAL WEATHER SERVICE SAN DIEGO CA
1244 PM PDT WED JUN 17 2026
FORECAST IS BASED ON FORECAST START TIME OF 0500 PDT ON JUNE 18.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
ONSHORE FLOW WILL INCREASE TONIGHT INTO THURSDAY KEEPING COASTAL
CONDITIONS RATHER HUMID. TYPICAL SEA BREEZES CAN BE EXPECTED
EACH AFTERNOON THROUGH FRIDAY (JUNETEENTH). IT WILL BE SLIGHTLY
COOLER THAN AVERAGE THURSDAY AND FRIDAY.
THURSDAY
SKY/WEATHER.........CLOUDY (90-100 PERCENT) THEN BECOMING MOSTLY
SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....AROUND 72.
MIN HUMIDITY........65 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING WEST UP TO 6 MPH WITH
GUSTS TO AROUND 10 MPH IN THE LATE MORNING AND
AFTERNOON.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING SOUTHWEST 5 TO 8 MPH WITH
GUSTS TO AROUND 14 MPH IN THE LATE MORNING AND
AFTERNOON.
RIDGETOP...........SOUTHWEST AROUND 5 MPH SHIFTING TO THE WEST IN
THE LATE MORNING AND EARLY AFTERNOON, THEN
SHIFTING TO THE NORTHWEST LATE IN THE AFTERNOON
SHIFTING TO THE WEST LATE IN THE AFTERNOON.
CWR.................2 PERCENT.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........99 99 89 89 89 19 19 19 7 7 7 23
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............59 59 61 63 67 68 70 71 71 72 71 70
RH..............97 97 93 87 79 77 71 68 66 66 68 70
20 FT WIND DIR..S SE E SE S SW W W W W W W
20 FT WIND SPD..1 1 1 2 5 6 7 8 8 8 6 5
20 FT WIND GUST.4 4 4 6 8 11 13 14 14 13 11 9
EYE LVL WND DIR.S SE E SE S SW W W W W W W
EYE LVL WND SPD.1 1 1 1 3 4 5 6 6 5 4 4
EYE LVL WND GST.3 3 3 4 6 8 9 10 10 9 8 7
RIDGE WIND DIR..SW SW SW W W W W NW NW NW W W
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
THURSDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT) THEN BECOMING
CLOUDY (95-100 PERCENT).
MIN TEMPERATURE.....AROUND 58.
MAX HUMIDITY........98 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS AROUND 5 MPH EARLY IN THE EVENING
BECOMING LIGHT.
RIDGETOP...........
CWR.................1 PERCENT.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........23 23 23 23 23 100 100 100 100 100 100 97
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............69 67 64 62 61 60 60 59 59 59 59 58
RH..............72 77 83 87 89 89 91 92 93 95 95 97
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..5 3 3 2 2 1 1 1 1 1 2 2
20 FT WIND GUST.8 7 7 6 5 5 4 4 5 5 5 5
EYE LVL WND DIR.W W W W W W W W W W W W
EYE LVL WND SPD.3 3 2 1 1 1 1 1 1 1 1 1
EYE LVL WND GST.6 5 5 4 4 4 3 3 4 4 4 4
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 0 0 0 0 0 0 0
JUNETEENTH
SKY/WEATHER.........CLOUDY (90-100 PERCENT) THEN BECOMING MOSTLY
SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....AROUND 72.
MIN HUMIDITY........66 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING WEST UP TO 6 MPH WITH
GUSTS TO AROUND 10 MPH IN THE LATE MORNING AND
AFTERNOON.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 5 TO 8 MPH EARLY IN THE MORNING
BECOMING LIGHT, THEN BECOMING WEST 5 TO 8 MPH
WITH GUSTS TO AROUND 16 MPH IN THE LATE MORNING
AND AFTERNOON.
RIDGETOP...........
CWR.................1 PERCENT.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........97 97 97 97 97 15 15 15 15 15 15 6
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............58 58 60 63 66 68 70 71 71 71 71 70
RH..............98 98 93 87 79 73 70 68 67 66 66 68
20 FT WIND DIR..W W SW SW W W W W W W W W
20 FT WIND SPD..1 1 1 2 5 6 7 8 8 8 8 8
20 FT WIND GUST.4 4 4 6 9 11 13 14 15 15 14 14
EYE LVL WND DIR.W W SW SW W W W W W W W W
EYE LVL WND SPD.1 1 1 1 4 4 5 6 6 6 6 6
EYE LVL WND GST.3 3 3 5 7 8 9 10 10 10 10 9
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 0 0 0 0 0 0 0
FORECASTER...MIGUEL MILLER
REQUESTED BY...DANIEL NAYLOR
TYPE OF REQUEST...WILDFIRE
.TAG 2615722.0/SGX
.DELDT 06/17/26
.FORMATTERVERSION 2.0.0
.EMAIL DANIEL.NAYLOR@USDA.GOV
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