817
FNUS76 KSGX 200028
FWSSGX
SPOT FORECAST FOR DEHESA 7 FIRE...CAL FIRE
NATIONAL WEATHER SERVICE SAN DIEGO CA
528 PM PDT WED AUG 19 2026
FORECAST IS BASED ON FORECAST START TIME OF 1800 PDT ON AUGUST 19.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
TYPICAL DIURNAL WIND PATTERN EXPECTED THROUGH THE WEEKEND WITH
LIGHT DRAINAGE WINDS AT NIGHT AND SOUTHWEST UPVALLEY WINDS AROUND
5-10 MPH AT 20 FEET EACH AFTERNOON. RELATIVELY HOT AND SUNNY
CONDITIONS WILL PREVAIL WITH AFTERNOON HIGHS IN THE LOW TO MID 90S
AND MINIMUM RH VALUES AROUND 35-40% EACH DAY.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....AROUND 93.
MIN HUMIDITY........43 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING SOUTHWEST UP TO 4 MPH.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING SOUTHWEST 5 TO 7 MPH
LATE IN THE MORNING.
RIDGETOP...........SOUTHEAST 0 TO 5 MPH SHIFTING TO THE NORTH LATE
IN THE AFTERNOON.
CWR.................2 PERCENT.
MIXING HEIGHT.......2200 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 1 MPH SHIFTING TO THE
SOUTHWEST 2 TO 9 MPH.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........52 52 62 62 62 7 7 7 18 18 18 11
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............69 70 73 77 82 85 89 90 91 91 90 88
RH..............78 77 74 68 60 53 46 43 43 43 43 45
20 FT WIND DIR..S SW SW SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..2 1 1 2 3 5 6 7 7 8 7 6
20 FT WIND GUST.6 5 4 6 7 9 11 12 12 13 11 10
EYE LVL WND DIR.S SW SW SW SW SW SW SW SW SW SW SW
EYE LVL WND SPD.1 1 1 1 2 3 3 4 4 4 4 3
EYE LVL WND GST.3 3 2 3 4 5 6 6 6 7 6 5
RIDGE WIND DIR..SE SE SE SE SE SE SE E E SE S N
RIDGE WIND SPD..5 5 5 5 5 5 5 5 5 0 0 0
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
THURSDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT).
MIN TEMPERATURE.....AROUND 68.
MAX HUMIDITY........80 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS AROUND 5 MPH EARLY IN THE EVENING
BECOMING LIGHT.
RIDGETOP...........WEST 0 TO 5 MPH SHIFTING TO THE NORTH AROUND 5
MPH OVERNIGHT, THEN SHIFTING TO THE EAST AROUND
10 MPH AFTER 3 AM.
CWR.................2 PERCENT.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....WEST 1 TO 6 MPH SHIFTING TO THE EAST AFTER 3 AM.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........11 11 11 11 11 20 20 20 20 20 20 38
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............87 82 78 76 74 72 71 71 70 70 70 70
RH..............48 56 64 70 74 79 80 80 80 80 79 77
20 FT WIND DIR..SW SW SW W W W N NE NE E E E
20 FT WIND SPD..5 2 1 1 1 1 1 1 1 1 1 1
20 FT WIND GUST.8 6 5 4 4 4 4 4
EYE LVL WND DIR.SW SW SW W W W N NE NE E E E
EYE LVL WND SPD.3 1 1 1 1 1 1 1 1 1 1 1
EYE LVL WND GST.4 3 3 2 2 2 2 2
RIDGE WIND DIR..W W W W W W W W N E E E
RIDGE WIND SPD..0 0 0 5 5 5 5 0 5 10 10 10
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
FORECASTER...KYLE WHEELER
REQUESTED BY...BRICE SMITH
TYPE OF REQUEST...WILDFIRE
.TAG 2620046.0/SGX
.DELDT 08/19/26
.FORMATTERVERSION 2.0.0
.EMAIL CHEYENNE.BORELLO@FIRE.CA.GOV,BRICE.SMITH@FIRE.CA.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page