294
FNUS76 KSGX 190030
FWSSGX
SPOT FORECAST FOR SHORE...CAL FIRE RRU
NATIONAL WEATHER SERVICE SAN DIEGO CA
530 PM PDT THU JUN 18 2026
FORECAST IS BASED ON FORECAST START TIME OF 1900 PDT ON JUNE 18.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
A DEEP MARINE LAYER WILL CONTINUE TO DOMINATE THE WEATHER PICTURE
INTO THE WEEKEND. HUMIDITY WILL BE MODERATE TO HIGH WITH EXCELLENT
RECOVERY DURING THE NIGHTS. TYPICAL BRISK SEA BREEZES ARE EXPECTED
EACH AFTERNOON AND EARLY EVENING. HIGH TEMPERATURES A LITTLE LOWER
THAN AVERAGE AND LOW TEMPERATURES A LITTLE HIGHER. THE MARINE LAYER
WILL BECOME MORE SHALLOW SATURDAY MORNING, WITH SLIGHTLY LOWER
HUMIDITY.
TONIGHT
SKY/WEATHER.........CLEAR (0-5 PERCENT) THEN BECOMING PARTLY CLOUDY
(30-40 PERCENT) THEN BECOMING MOSTLY CLOUDY
(75-85 PERCENT). PATCHY FOG EARLY IN THE
MORNING.
MIN TEMPERATURE.....AROUND 56.
MAX HUMIDITY........94 PERCENT.
EYE LEVEL WINDS.....NORTHWEST WINDS AROUND 4 MPH EARLY IN THE
EVENING BECOMING LIGHT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHWEST WINDS 5 TO 6 MPH WITH GUSTS TO 13 MPH
EARLY IN THE EVENING BECOMING LIGHT.
RIDGETOP...........VARIABLE LESS THAN 10 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....WEST 1 TO 9 MPH SHIFTING TO THE SOUTHWEST
AROUND 2 MPH AFTER 3 AM.
TIME (PDT) 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........1 3 3 3 40 40 40 30 30 30 80
WEATHER COV..... PTY
WEATHER TYPE.... FOG
TSTM COV........
TEMP............77 72 68 65 63 60 60 58 57 57 56
RH..............53 64 73 80 84 88 91 92 93 93 94
20 FT WIND DIR..W NW NW NW NW NW W NW W W W
20 FT WIND SPD..7 6 5 3 2 1 1 1 1 1 1
20 FT WIND GUST.13 11 9 7 6 5 4 4
EYE LVL WND DIR.W NW NW NW NW NW W NW W W W
EYE LVL WND SPD.4 4 4 2 1 1 1 1 1 1 1
EYE LVL WND GST.8 8 7 5 4 4 3 3
RIDGE WIND DIR..SW NE W W SE W W S W W SW
RIDGE WIND SPD..0 0 5 5 0 10 10 0 5 5 5
CWR.............0 0 0 0 0 0 0 0 0 0 0
JUNETEENTH (FRIDAY)
SKY/WEATHER.........CLOUDY (85-95 PERCENT) THEN BECOMING
PARTLY CLOUDY (50-60 PERCENT) THEN BECOMING
SUNNY (0-10 PERCENT). PATCHY FOG IN THE
MORNING.
MAX TEMPERATURE.....AROUND 81.
MIN HUMIDITY........41 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING WEST UP TO 6 MPH WITH
GUSTS TO AROUND 11 MPH IN THE AFTERNOON.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 2 TO 4 MPH EARLY IN THE MORNING
BECOMING WEST 5 TO 8 MPH WITH GUSTS TO AROUND
18 MPH IN THE AFTERNOON.
RIDGETOP...........SOUTHWEST 5 TO 10 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......4100 FT AGL.
TRANSPORT WINDS.....WEST AROUND 2 MPH INCREASING TO AROUND 12 MPH.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........80 80 53 53 53 4 4 4 1 1 1 2
WEATHER COV.....PTY PTY PTY PTY PTY
WEATHER TYPE....FOG FOG FOG FOG FOG
TSTM COV........
TEMP............55 57 60 63 68 72 75 78 80 81 81 80
RH..............100 100 93 85 70 62 54 48 45 42 42 44
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..1 1 1 2 2 3 5 6 7 7 8 8
20 FT WIND GUST.4 4 4 5 6 7 9 10 13 16 17 17
EYE LVL WND DIR.W W W W W W W W W W W W
EYE LVL WND SPD.1 1 1 1 1 3 3 4 4 5 6 6
EYE LVL WND GST.3 3 3 4 5 5 7 7 8 9 10 11
RIDGE WIND DIR..SW W W W W W W W W W SW SW
RIDGE WIND SPD..5 5 5 5 5 5 5 5 5 5 10 10
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
FRIDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....AROUND 54.
MAX HUMIDITY........89 PERCENT.
EYE LEVEL WINDS.....NORTHWEST WINDS UP TO 6 MPH WITH GUSTS TO
AROUND 10 MPH EARLY IN THE EVENING BECOMING
LIGHT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 5 TO 8 MPH WITH GUSTS TO AROUND 14
MPH EARLY IN THE EVENING BECOMING LIGHT.
RIDGETOP...........
CWR.................0 PERCENT.
MIXING HEIGHT.......0 FT AGL.
TRANSPORT WINDS.....WEST 3 TO 12 MPH SHIFTING TO THE NORTHWEST 2 TO
3 MPH OVERNIGHT.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........2 2 2 2 2 14 14 14 14 14 14 32
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............79 77 70 66 63 61 58 57 56 55 54 54
RH..............40 44 55 64 71 76 78 79 84 87 88 88
20 FT WIND DIR..W W W NW NW NW N NE N NE NE E
20 FT WIND SPD..8 7 6 5 3 2 1 1 1 1 1 1
20 FT WIND GUST.14 13 11 9 7 5 4 4 4
EYE LVL WND DIR.W W W NW NW NW N NE N NE NE E
EYE LVL WND SPD.6 5 4 4 2 1 1 1 1 1 1 1
EYE LVL WND GST.10 9 8 7 5 4 3 3 3
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...DAN LERMA
TYPE OF REQUEST...WILDFIRE
.TAG 2615594.2/SGX
.DELDT 06/18/26
.FORMATTERVERSION 2.0.0
.EMAIL RRUECCCAPTAINS@FIRE.CA.GOV
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