432
FNUS76 KSGX 160113
FWSSGX
SPOT FORECAST FOR H.E.I.S.T 26-0...CAL FIRE / SAN BERNARDINO UNIT
NATIONAL WEATHER SERVICE SAN DIEGO CA
613 PM PDT WED APR 15 2026
FORECAST IS BASED ON FORECAST START TIME OF 1849 PDT ON APRIL 15.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
MOSTLY CLEAR SKIES WILL SLOWLY BECOME MOSTLY CLOUDY OVER NIGHT,
THEN MOSTLY TO PARTLY CLOUDY BY THURSDAY AFTERNOON. WINDS WILL
PICK UP OUT OF THE SOUTHWEST IN THE LATE MORNING/EARLY AFTERNOON
WITH GUSTS AROUND 15-20 MPH. HIGH TEMPERATURES WILL BE IN THE LOW
70S WITH NO CHANCE OF PRECIPITATION.
TONIGHT
SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....MISSING.
MAX HUMIDITY........93 PERCENT.
SURFACE WINDS (MPH).SOUTHWEST WINDS AROUND 9 MPH.
RIDGETOP...........SOUTHWEST AROUND 5 MPH.
CHANCE OF PCPN......0 PERCENT.
MIXING HEIGHT.......1800 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 9 MPH.
RAINFALL AMOUNT.....0.00 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
SNOW LEVEL..........6400 FT.
TIME (PDT) 6PM
SKY (%).........5
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............66
RH..............57
SURFACE WND DIR.SW
SURFACE WND SPD.9
SURFACE WND GST.16
RIDGE WIND DIR..SW
RIDGE WIND SPD..5
CHC OF PCPN (%).0
SNOW LVL (KFT)..6.4
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) THEN BECOMING
MOSTLY CLOUDY (65-75 PERCENT).
MIN TEMPERATURE.....AROUND 52.
MAX HUMIDITY........93 PERCENT.
SURFACE WINDS (MPH).SOUTH WINDS 7 TO 9 MPH EARLY IN THE EVENING
BECOMING LIGHT.
CHANCE OF PCPN......0 PERCENT.
RAINFALL AMOUNT.....0.00 INCHES.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........5 5 22 22 22 55 55 55 52 52 52 71
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............66 62 58 57 55 55 55 54 54 54 53 54
RH..............57 70 84 89 93 91 90 91 88 87 87 83
SURFACE WND DIR.SW S S S SE SE E NE NE NE NE NE
SURFACE WND SPD.9 7 6 3 3 3 3 3 3 3 3 3
SURFACE WND GST.16 13 10 8 7 6 6 7 7 7 7 7
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) THEN BECOMING
PARTLY CLOUDY (50-60 PERCENT).
MAX TEMPERATURE.....AROUND 72.
MIN HUMIDITY........46 PERCENT.
SURFACE WINDS (MPH).LIGHT WINDS BECOMING SOUTHWEST 9 TO 13 MPH WITH
GUSTS TO AROUND 21 MPH IN THE AFTERNOON.
RIDGETOP...........NORTHWEST 0 TO 5 MPH SHIFTING TO THE WEST EARLY
IN THE MORNING.
CHANCE OF PCPN......0 PERCENT.
MIXING HEIGHT.......3000 FT AGL.
TRANSPORT WINDS.....NORTHEAST AROUND 2 MPH SHIFTING TO THE
SOUTHEAST EARLY IN THE MORNING, THEN SHIFTING
TO THE SOUTHWEST 2 TO 10 MPH IN THE LATE
MORNING AND EARLY AFTERNOON INCREASING TO
AROUND 12 MPH LATE IN THE AFTERNOON.
RAINFALL AMOUNT.....0.00 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
SNOW LEVEL..........5600-5700 FT INCREASING TO 6600 FT LATE IN THE
AFTERNOON.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........71 71 77 77 77 75 75 75 57 57 57 53
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............54 54 57 59 62 66 69 70 71 70 70 69
RH..............80 79 72 68 62 56 51 49 46 48 49 53
SURFACE WND DIR.E E SE SE S SW SW SW SW SW SW SW
SURFACE WND SPD.3 3 3 3 3 6 9 10 11 13 13 11
SURFACE WND GST.7 6 6 7 9 12 15 17 20 21 21 20
RIDGE WIND DIR..NW NW SW SW W W W W W W W W
RIDGE WIND SPD..0 5 5 5 5 5 5 5 5 10 10 10
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
SNOW LVL (KFT)..5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.7 5.7 5.7 6.6
FORECASTER...LAUREN VILLAFANE
REQUESTED BY...ERIK HOSTETTER BC
TYPE OF REQUEST...OTHER
.TAG 2610091.2/SGX
.DELDT 04/15/26
.FORMATTERVERSION 2.0.0
.EMAIL ERIK.HOSTETTER@FIRE.CA.GOV
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