878
FNUS76 KSGX 181612
FWSSGX
SPOT FORECAST FOR BANNING PILE BURN USFS...USFS
NATIONAL WEATHER SERVICE SAN DIEGO CA
812 AM PST THU DEC 18 2025
FORECAST IS BASED ON IGNITION TIME OF 0900 PST ON DECEMBER 19.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
LIGHT WINDS OVERNIGHT WITH GUSTY WESTERLY WINDS FRIDAY AFTERNOON.
WESTERLY WINDS NOT AS STRONG ON SATURDAY AFTERNOON. IMPROVING
NIGHT TIME HUMIDITY RECOVERY. VARIABLE HIGH CLOUDS.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT) THEN BECOMING
PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING
MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....AROUND 72.
MIN HUMIDITY........29 PERCENT.
EYE LEVEL WINDS.....WEST WINDS UP TO 6 MPH.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 6 TO 9 MPH.
RIDGETOP...........WEST 15 TO 20 MPH INCREASING TO 20 TO 25 MPH
LATE IN THE AFTERNOON.
CWR.................0 PERCENT.
MIXING HEIGHT.......2300 FT AGL.
TRANSPORT WINDS.....WEST 9 TO 13 MPH.
TIME (PST) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........15 40 40 40 34 34 34 15 15
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............66 68 69 70 71 70 70 68 63
RH..............34 30 29 30 29 30 31 33 37
20 FT WIND DIR..W W W W W W W W W
20 FT WIND SPD..7 8 8 8 9 8 8 7 6
20 FT WIND GUST. 9 10 11 10 10 9 8
EYE LVL WND DIR.W W W W W W W W W
EYE LVL WND SPD.4 4 5 6 6 5 5 4 4
EYE LVL WND GST.5 6 7 7 8 7 7 7 6
RIDGE WIND DIR..W W W W W W W W W
RIDGE WIND SPD..15 15 20 20 20 20 25 25 20
CWR.............0 0 0 0 0 0 0 0 0
FRIDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....AROUND 54.
MAX HUMIDITY........50 PERCENT.
EYE LEVEL WINDS.....NORTHWEST WINDS AROUND 4 MPH.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 5 TO 7 MPH.
RIDGETOP...........WEST 15 TO 20 MPH DECREASING TO 5 TO 10 MPH
LATE IN THE EVENING, THEN SHIFTING TO THE NORTH
AROUND 0 MPH OVERNIGHT.
CWR.................0 PERCENT.
MIXING HEIGHT.......0 FT AGL.
TRANSPORT WINDS.....WEST 7 TO 9 MPH.
TIME (PST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........15 15 15 15 9 9 9 9 9 9 21 21
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............60 59 58 57 57 57 57 57 57 56 56 56
RH..............43 48 50 50 48 47 46 45 44 43 42 42
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..6 5 6 6 6 6 6 7 7 6 6 6
20 FT WIND GUST.7 7 7 7 7 7 7 7 8 7
EYE LVL WND DIR.W W W W W W NW NW NW NW NW NW
EYE LVL WND SPD.4 4 4 4 4 4 4 4 4 4 4 4
EYE LVL WND GST.5 5 5 5 5 5 5 5 5 5 6 5
RIDGE WIND DIR..W W W W W W W N N N N N
RIDGE WIND SPD..20 20 20 15 15 10 5 0 0 0 0 0
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT) THEN BECOMING
PARTLY CLOUDY (30-40 PERCENT).
MAX TEMPERATURE.....AROUND 68.
MIN HUMIDITY........34 PERCENT.
EYE LEVEL WINDS.....WEST WINDS UP TO 5 MPH.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 6 TO 8 MPH.
RIDGETOP...........NORTH AROUND 0 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....WEST 8 TO 12 MPH.
TIME (PST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........21 21 21 21 27 27 27 27 27 27 45 45
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............56 57 59 62 65 66 67 67 67 66 65 62
RH..............41 41 39 37 35 35 34 35 35 36 38 43
20 FT WIND DIR..NW NW W W W W W W W W W W
20 FT WIND SPD..6 6 7 7 8 8 8 8 8 7 6 6
20 FT WIND GUST.7 7 9 10 10 10 9 8 8
EYE LVL WND DIR.NW NW NW W W W W W W W W W
EYE LVL WND SPD.4 4 4 4 4 4 5 5 5 4 4 4
EYE LVL WND GST.5 5 5 5 6 7 7 7 7 7 6 6
RIDGE WIND DIR..N N N N N N N N N N N M
RIDGE WIND SPD..0 0 0 0 0 0 0 0 0 0 0 M
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
FORECASTER...PHIL GONSALVES
REQUESTED BY...KEVIN CHAJKA
TYPE OF REQUEST...PRESCRIBED
.TAG 2527899.0/SGX
.DELDT 12/18/25
.FORMATTERVERSION 2.0.0
.EMAIL KEVIN.CHAJKA@USDA.GOV
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