763
FNUS76 KLOX 111808
FWSLOX
SPOT FORECAST FOR SUMMIT FIRE...CNTY LAC
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1108 AM PDT SAT JUL 11 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
..CORRECTED FOR TIMING OF WIND SHIFT TODAY
..HEAT ADVISORY IN EFFECT UNTIL 10 AM PDT TUESDAY
...SIGNIFICANT WIND SHIFTS TO THE NORTHWEST AND SOUTH THIS AFTERNOON
INTO EVENING COULD CAUSE RAPID FIRE GROWTH AND EXTREME FIRE BEHAVIOR...
...ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS TODAY WITH
LARGE PLUME DOMINATED FIRE BEHAVIOR LIKELY DUE TO INCREASING
MIXING HEIGHTS...
DISCUSSION
ANOTHER ROUND OF HOT AND DRY CONDITIONS COMBINED WITH GUSTY WINDS
WILL BRING ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS
TO THE FIRE REGION THIS AFTERNOON AND EVENING. WITH HIGHER MIXING
HEIGHTS TODAY (UP TO 14,000 FEET THIS AFTERNOON), THERE WILL BE
AN INCREASED RISK OF LARGE PLUME DOMINATED FIRE BEHAVIOR.
A SIGNIFICANT WIND SHIFT IS NOW EXPECTED TO OCCUR THIS AFTERNOON,
FIRST FROM THE NORTHWEST EARLY THIS AFTERNOON, THEN A STRONGER
SOUTH WIND PUSH BY LATE AFTERNOON INTO EVENING. THESE ENHANCED
WINDS WITH SUDDEN WIND SHIFTS COULD CAUSE RAPID FIRE GROWTH WITH
ERRATIC FIRE BEHAVIOR LATER TODAY.
SOME HIGHER LEVEL MONSOONAL MOISTURE IS EXPECTED TO MOVE INTO
THE FIRE LOCATION BY TONIGHT, WITH A 5 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. BY SUNDAY, THERE WILL BE A 20 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. WITH THIS INITIAL ONSET OF MONSOONAL
THUNDERSTORM THREAT, THE MAIN RISKS WILL BE ISOLATED DRY LIGHTNING
STRIKES AND GUSTY OUTFLOW WINDS, MAINLY ON SUNDAY. BY MONDAY AND
TUESDAY, ANY THUNDERSTORMS THAT DEVELOP WILL LIKELY BE WETTER.
FROM TUESDAY THROUGH THURSDAY, EVEN HOTTER TEMPERATURES ARE EXPECTED
RESULTING IN THE EXTREME HEAT WATCH BEING IN EFFECT DURING THIS
TIME.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY BECOMING PARTLY CLOUDY LATE.
MAX TEMPERATURE.....AROUND 99.
MIN HUMIDITY........AROUND 10 PERCENT.
EYE LEVEL WINDS.....NORTHEAST 2 TO 4 MPH WITH GUSTS TO 6 MPH BECOMING
NORTHWEST 5 TO 9 MPH WITH GUSTS TO 11 MPH BY 1300
SHIFTING TO SOUTH 8 TO 13 MPH WITH GUSTS TO 15 MPH
BY 1600.
RIDGETOP WIND.......NORTHEAST 6 TO 10 MPH WITH GUSTS TO 15 MPH BECOMING
NORTHWEST 12 TO 17 MPH WITH GUSTS TO 25 MPH BY 1300
SHIFTING TO SOUTH 15 TO 25 MPH WITH GUSTS TO 35 MPH
BY 1600.
MIXING HEIGHT.......RISING TO AROUND 14000 FEET BY MID TO LATE AFTERNOON
HOURS.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
MIN TEMPERATURE.....AROUND 73.
MAX HUMIDITY........25-30 PERCENT.
EYE LEVEL WINDS.....GUSTING NORTHWEST WINDS TO AROUND 12 MPH THROUGH 2000
BECOMING SOUTHWEST AROUND 5 MPH BY LATE EVENING AND
CONTINUING THROUGH THE OVERNIGHT HOURS.
RIDGETOP WIND.......NORTHWEST 10 TO 15 MPH WITH GUSTS TO 22 MPH
IN THE EVENING BECOMING WEST 6 TO 12 MPH
WITH GUSTS TO 15 MPH OVERNIGHT.
MIXING HEIGHT.......6000 FEET AGL EARLY LOWERING TO AROUND 1000 FT AGL
OVERNIGHT.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY WITH A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS (20%) IN THE AFTERNOON.
ISOLATED DRY LIGHTNING STRIKES AND GUSTY OUTFLOW WINDS
NEAR ANY THUNDERSTORMS.
MAX TEMPERATURE.....AROUND 94.
MIN HUMIDITY........15-20 PERCENT.
EYE LEVEL WINDS.....NORTH TO NORTHEAST 3 TO 4 MPH WITH GUSTS TO 6 MPH
BECOMING NORTHWEST 5 TO 8 MPH WITH GUSTS TO 11 MPH
BY 1400.
RIDGETOP WIND.......NORTH TO NORTHEAST 6 TO 10 MPH WITH GUSTS TO 15 MPH
BECOMING NORTHWEST 10 TO 17 MPH WITH GUSTS TO 25 MPH
BY 1400.
MIXING HEIGHT.......RISING TO AROUND 14000 FEET BY MID TO LATE AFTERNOON
HOURS.
SUNDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS (20%). ISOLATED DRY LIGHTNING STRIKES AND
GUSTY OUTFLOW WINDS NEAR ANY THUNDERSTORMS.
MIN TEMPERATURE.....AROUND 75.
MAX HUMIDITY........30-35 PERCENT.
EYE LEVEL WINDS.....SOUTHWEST 4 TO 6 MPH WITH GUSTS TO 10 MPH IN THE EVENING
BECOMING SOUTHEAST TO EAST 2 TO 4 MPH OVERNIGHT.
RIDGETOP WIND.......SOUTHWEST 10 TO 15 MPH WITH GUSTS TO 22 MPH
IN THE EVENING BECOMING SOUTHEAST TO EAST 5 TO 10 MPH
OVERNIGHT.
MIXING HEIGHT.......7000 FEET AGL EARLY LOWERING TO AROUND 1000 FT AGL
OVERNIGHT.
FORECASTER...GOMBERG
REQUESTED BY...ANDREW CARNES
TYPE OF REQUEST...WILDFIRE
.TAG 2617217.0/LOX
.DELDT 07/11/26
.FORMATTERVERSION 2.0.0
.EMAIL ANDREW.CARNES@FIRE.LACOUNTY.GOV,DREW.SMITH@FIRE.LACOUNTY.GOV,CAPT40@FIRE.LACOUNTY.GOV,CHARLES.SWEENEY@FIRE.LACOUNTY.GOV
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