217
FNUS76 KSGX 031235
FWSSGX
SPOT FORECAST FOR SIERRA PEAK RX...FOREST SERVICE
NATIONAL WEATHER SERVICE SAN DIEGO CA
435 AM PST WED DEC 3 2025
FORECAST IS BASED ON IGNITION TIME OF 0742 PST ON DECEMBER 03.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
VERY HIGH HUMIDITY TO START THE DAY WITHIN A DEEP MARINE LAYER.
OFFSHORE WINDS DEVELOP BY LATE MORNING, PEAK THIS AFTERNOON THROUGH
TONIGHT, AND GRADUALLY DECREASE THURSDAY THROUGH FRIDAY MORNING.
THE WINDS WILL DROP HUMIDITY APPRECIABLY THIS AFTERNOON, WITH POOR
RECOVERY TONIGHT.
TODAY
SKY/WEATHER.........FOGGY EARLY, THEN MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....AROUND 61.
MIN HUMIDITY........24 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING NORTHEAST 6 TO 11 MPH WITH
GUSTS TO AROUND 17 MPH IN THE LATE MORNING AND
AFTERNOON.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING NORTHEAST 9 TO 15 MPH WITH
GUSTS TO AROUND 23 MPH IN THE LATE MORNING AND
AFTERNOON.
RIDGETOP...........NORTHWEST AROUND 15 MPH SHIFTING TO THE
NORTHEAST EARLY IN THE MORNING, THEN INCREASING
TO 20 TO 25 MPH LATE IN THE MORNING INCREASING
TO 25 TO 30 MPH IN THE AFTERNOON.
CWR.................4 PERCENT.
MIXING HEIGHT.......3800 FT AGL.
TRANSPORT WINDS.....EAST 5 TO 6 MPH SHIFTING TO THE NORTHEAST 9 TO
16 MPH LATE IN THE MORNING, THEN INCREASING TO
20 TO 24 MPH LATE IN THE MORNING.
TIME (PST) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........72 46 24 7 7 7 5 5 5 11 11
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............52 52 53 54 56 58 58 60 58 56 54
RH..............93 86 73 49 39 33 29 25 24 25 28
20 FT WIND DIR..SE SE NE NE NE NE NE NE NE NE NE
20 FT WIND SPD..3 2 9 13 14 15 14 13 14 13 13
20 FT WIND GUST.7 6 15 20 22 23 22 20 22 20 20
EYE LVL WND DIR.SE SE NE NE NE NE NE NE NE NE NE
EYE LVL WND SPD.3 1 6 9 11 11 10 9 11 9 9
EYE LVL WND GST.5 4 11 15 16 17 16 15 16 15 14
RIDGE WIND DIR..NW NE NE N NE NE NE NE NE NE NE
RIDGE WIND SPD..15 10 15 20 25 30 25 25 25 25 25
CWR.............0 0 0 0 0 0 0 0 0 0 0
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....AROUND 49.
MAX HUMIDITY........37 PERCENT.
EYE LEVEL WINDS.....EAST WINDS AROUND 9 MPH WITH GUSTS TO AROUND 15
MPH.
WIND (20 FT)........
SLOPE/VALLEY.......EAST WINDS 12 TO 13 MPH WITH GUSTS TO AROUND 20
MPH.
RIDGETOP...........NORTHEAST 25 TO 30 MPH INCREASING TO 30 TO 35
MPH EARLY IN THE EVENING, THEN DECREASING TO 25
TO 30 MPH IN THE LATE EVENING AND OVERNIGHT
DECREASING TO 20 TO 25 MPH AFTER 3 AM.
CWR.................0 PERCENT.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....NORTHEAST 18 TO 22 MPH.
TIME (PST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........11 3 3 3 3 3 3 3 3 3 4 4
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............52 52 53 53 53 53 53 52 52 52 51 52
RH..............32 34 36 36 37 37 37 37 35 33 32 29
20 FT WIND DIR..NE NE NE E E E E E E E E E
20 FT WIND SPD..12 12 13 13 13 13 13 13 13 13 13 13
20 FT WIND GUST.20 20 20 20 20 20 20 20 20 20 20 20
EYE LVL WND DIR.NE NE NE E E E E E E E E E
EYE LVL WND SPD.9 9 9 9 9 9 9 9 9 9 9 9
EYE LVL WND GST.14 14 14 15 15 15 15 15 15 15 15 15
RIDGE WIND DIR..NE NE NE NE NE NE NE NE NE NE NE NE
RIDGE WIND SPD..25 30 35 30 25 30 30 25 30 30 20 25
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 63.
MIN HUMIDITY........19 PERCENT.
EYE LEVEL WINDS.....EAST WINDS UP TO 10 MPH. GUSTS UP TO 16 MPH.
WIND (20 FT)........
SLOPE/VALLEY.......EAST WINDS 7 TO 14 MPH. GUSTS UP TO 26 MPH.
RIDGETOP...........NORTHEAST 15 TO 20 MPH DECREASING TO AROUND 10
MPH LATE IN THE AFTERNOON.
CWR.................0 PERCENT.
MIXING HEIGHT.......3500 FT AGL.
TRANSPORT WINDS.....NORTHEAST 12 TO 21 MPH DECREASING TO 8 TO 10
MPH LATE IN THE AFTERNOON.
TIME (PST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........4 2 2 2 6 6 6 5 5 5 10 10
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............51 50 52 55 57 59 60 61 60 59 57 55
RH..............29 30 29 28 26 23 21 19 20 21 23 24
20 FT WIND DIR..E E E E E E NE NE NE NE NE E
20 FT WIND SPD..13 13 13 14 14 13 13 12 10 9 8 7
20 FT WIND GUST.26 24 21 21 21 21 20 18 17 15 14 12
EYE LVL WND DIR.E E E E E E NE NE NE NE NE E
EYE LVL WND SPD.9 9 9 10 10 9 9 9 7 7 6 4
EYE LVL WND GST.15 15 15 15 15 15 15 13 12 11 10 9
RIDGE WIND DIR..E NE E E NE NE NE NE NE NE NE NE
RIDGE WIND SPD..20 15 20 20 15 15 15 15 15 10 10 10
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
FORECAST DAYS 3 THROUGH 5
FRIDAY
CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S. LIGHT WINDS AT
EYE LEVEL.
SATURDAY
CLEAR. LOWS AROUND 50. HIGHS IN THE MID 60S. LIGHT WINDS AT EYE LEVEL.
SUNDAY
CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 60S. LIGHT WINDS AT
EYE LEVEL.
FORECASTER...MIGUEL MILLER
REQUESTED BY...CYRUS GALVAN
TYPE OF REQUEST...PRESCRIBED
.TAG 2526681.3/SGX
.DELDT 12/03/25
.FORMATTERVERSION 2.0.0
.EMAIL CYRUS.GALVAN@USDA.GOV
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