632
FNUS76 KSGX 210351
FWSSGX
SPOT FORECAST FOR BORDER 15...CALFIRE
NATIONAL WEATHER SERVICE SAN DIEGO CA
851 PM PDT WED AUG 20 2025
FORECAST IS BASED ON FORECAST START TIME OF 0700 PDT ON AUGUST 21.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
HOT CONDITIONS ARE EXPECTED, WITH HIGH TEMPERATURES ABOUT 5
DEGREES ABOVE AVERAGE. WINDS WILL MOSTLY PREVAIL FROM THE WEST OR
NORTHWEST THROUGH THE FORECAST PERIOD. AN UPTICK IN WINDS IS
EXPECTED ON FRIDAY AFTERNOON. MODERATE HUMIDITY RECOVERY IS
EXPECTED THURSDAY INTO FRIDAY. CHANCE OF WETTING RAIN REMAINS
BELOW 5 PERCENT, ALTHOUGH SHOWERS AND THUNDERSTORMS HAVE AN
INCREASING CHANCE OF DEVELOPING EAST OF THE FIRE AREA THIS
WEEKEND.
THURSDAY
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING
MOSTLY SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 92.
MIN HUMIDITY........35 PERCENT.
EYE LEVEL WINDS.....WEST WINDS UP TO 4 MPH.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS UP TO 9 MPH.
RIDGETOP...........WEST AROUND 5 MPH.
CWR.................2 PERCENT.
MIXING HEIGHT.......1400 FT AGL.
TRANSPORT WINDS.....WEST AROUND 8 MPH.
THURSDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
MIN TEMPERATURE.....AROUND 69.
MAX HUMIDITY........61 PERCENT.
EYE LEVEL WINDS.....NORTHWEST WINDS UP TO 3 MPH IN THE EVENING
BECOMING LIGHT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHWEST WINDS UP TO 6 MPH IN THE EVENING
BECOMING LIGHT.
RIDGETOP...........NORTHWEST AROUND 5 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 3 MPH.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING
MOSTLY SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....AROUND 92.
MIN HUMIDITY........39 PERCENT.
EYE LEVEL WINDS.....WEST WINDS 2 TO 4 MPH. GUSTS UP TO 10 MPH IN
THE AFTERNOON.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 5 TO 10 MPH. GUSTS UP TO 20 MPH IN
THE AFTERNOON.
RIDGETOP...........WEST AROUND 5 MPH.
CWR.................4 PERCENT.
MIXING HEIGHT.......1800 FT AGL.
TRANSPORT WINDS.....WEST AROUND 7 MPH.
FORECASTER...CASEY OSWANT
REQUESTED BY...JOSHUA USRY
TYPE OF REQUEST...WILDFIRE
.TAG 2520359.0/SGX
.DELDT 08/20/25
.FORMATTERVERSION 2.0.0
.EMAIL JOSHUA.USRY@FIRE.CA.GOV
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