821
FNUS76 KSGX 212146
FWSSGX
SPOT FORECAST FOR TRAINING EXERCISE COLLEGE...CALFIRE
NATIONAL WEATHER SERVICE SAN DIEGO CA
146 PM PST WED JAN 21 2026
FORECAST IS BASED ON IGNITION TIME OF 0600 PST ON JANUARY 22.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
MOISTURE CONTINUES TO INCREASE TONIGHT INTO THURSDAY AHEAD OF AN
INCOMING STORM SYSTEM THAT MAY BRING SPOTTY RAIN SHOWERS TO THE
AREA FOR THURSDAY INTO FRIDAY. HOWEVER, RAIN WILL BE QUITE
INTERMITTENT AND LIGHT, WITH THE CHANCE OF WETTING RAIN GENERALLY
15-25 PERCENT. MINIMUM HUMIDITY ON THURSDAY FALLING TO NEAR 60
PERCENT, BUT ONLY NEAR 74 PERCENT FOR FRIDAY. BUILDING CLOUD COVER
WITH A DEEPENING MARINE LAYER WILL LIKELY LEAD TO FULL SATURATION
IN THE MORNINGS. WINDS REMAIN FAIRLY LIGHT WITH WEST-
SOUTHWESTERLY WINDS NEAR 5-7 MPH EXPECTED IN THE AFTERNOON HOURS.
THURSDAY
SKY/WEATHER.........PARTLY TO MOSTLY CLOUDY (65-85 PERCENT). CHANCE
OF RAIN SHOWERS.
MAX TEMPERATURE.....AROUND 69.
MIN HUMIDITY........61 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS.
RIDGETOP...........SOUTHWEST 5 TO 10 MPH.
CWR.................10 PERCENT INCREASING TO 20 PERCENT LATE IN THE
AFTERNOON.
MIXING HEIGHT.......2200 FT AGL.
TRANSPORT WINDS.....EAST AROUND 2 MPH SHIFTING TO THE SOUTHEAST 1
TO 2 MPH EARLY IN THE MORNING, THEN SHIFTING TO
THE NORTHWEST 2 TO 6 MPH IN THE LATE MORNING
AND AFTERNOON.
TIME (PST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........65 72 72 72 80 80 80 83 83 83 69 69
WEATHER COV..... SCH SCH SCH SCH SCH SCH CHC CHC
WEATHER TYPE.... RW RW RW RW RW RW RW RW
TSTM COV........
TEMP............50 50 53 57 61 65 68 68 68 68 66 64
RH..............97 99 91 83 73 64 61 61 61 61 66 71
20 FT WIND DIR..N E SE N NW W W W W W W W
20 FT WIND SPD..0 1 1 1 1 2 3 3 3 3 3 3
20 FT WIND GUST. 5 6 6 6 8 7 6 6
EYE LVL WND DIR.N E SE N NW W W W W W W W
EYE LVL WND SPD.0 1 1 1 1 1 2 2 3 3 2 2
EYE LVL WND GST. 4 4 5 5 6 5 5 5
RIDGE WIND DIR..SW S SW S S S S S S SW SW SW
RIDGE WIND SPD..5 10 5 5 10 10 10 10 10 10 10 10
CWR.............0 0 0 0 10 10 10 10 10 10 20 20
THURSDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (65-75 PERCENT) THEN BECOMING
CLOUDY (90-100 PERCENT). CHANCE OF RAIN
SHOWERS.
MIN TEMPERATURE.....AROUND 51.
MAX HUMIDITY........100 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS.
RIDGETOP...........SOUTHWEST 5 TO 10 MPH.
CWR.................24 PERCENT.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....WEST 2 TO 3 MPH SHIFTING TO THE EAST AFTER 3
AM.
TIME (PST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........69 69 69 69 93 93 93 93 93 93 94 94
WEATHER COV.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........
TEMP............60 58 57 56 54 56 56 53 55 54 52 56
RH..............82 89 95 96 100 97 96 100 96 100 100 88
20 FT WIND DIR..W W W W W W N E E E SE SE
20 FT WIND SPD..2 2 1 1 1 1 0 1 1 1 1 1
20 FT WIND GUST.6 5 5 4 4 4 4 4 4 4
EYE LVL WND DIR.W W W W W W N E E E SE SE
EYE LVL WND SPD.1 1 1 1 1 1 0 1 1 1 1 1
EYE LVL WND GST.4 4 4 3 3 3 3 3 3 3
RIDGE WIND DIR..SW SW SW S S S SW SW SW SW SW SW
RIDGE WIND SPD..5 5 5 5 5 5 10 10 10 10 10 5
CWR.............20 20 20 20 20 20 20 20 20 20 20 20
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF RAIN
SHOWERS IN THE MORNING AND EARLY AFTERNOON,
THEN SLIGHT CHANCE OF RAIN SHOWERS LATE IN THE
AFTERNOON.
MAX TEMPERATURE.....AROUND 65.
MIN HUMIDITY........74 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING WEST AROUND 4 MPH IN THE
AFTERNOON.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING WEST 5 TO 6 MPH IN THE
AFTERNOON.
RIDGETOP...........SOUTH 0 TO 5 MPH SHIFTING TO THE WEST AROUND 5
MPH LATE IN THE AFTERNOON.
CWR.................24 PERCENT DECREASING TO 11 PERCENT LATE IN THE
AFTERNOON.
MIXING HEIGHT.......3400 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 2 TO 3 MPH SHIFTING TO THE WEST 8 TO
10 MPH LATE IN THE AFTERNOON.
TIME (PST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........94 94 94 94 83 83 83 83 83 83 72 72
WEATHER COV.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC SCH SCH
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........
TEMP............54 51 57 58 59 61 64 64 64 61 63 57
RH..............95 100 91 89 90 83 75 74 74 80 75 94
20 FT WIND DIR..SE N N N SW W W W W W W W
20 FT WIND SPD..1 0 0 0 1 2 3 5 5 5 6 6
20 FT WIND GUST. 1 1 4 5 6 9 10 10 10 10
EYE LVL WND DIR.SE N E S SW W W W W W W W
EYE LVL WND SPD.1 0 1 1 1 1 2 4 4 4 4 4
EYE LVL WND GST. 3 4 5 7 7 7 7 7
RIDGE WIND DIR..S S S S S S SW SW SW W W M
RIDGE WIND SPD..5 0 5 5 5 5 5 5 5 5 5 M
CWR.............20 20 20 20 20 20 20 20 20 20 10 10
FORECASTER...DAVID MUNYAN
REQUESTED BY...PATRICK CONTRADO
TYPE OF REQUEST...PRESCRIBED
.TAG 2600534.2/SGX
.DELDT 01/21/26
.FORMATTERVERSION 2.0.0
.EMAIL PATRICK.CONTRADO@FIRE.CA.GOV
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