447
FXUS66 KLOX 261648
AFDLOX
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
948 AM PDT FRI JUN 26 2026
SYNOPSIS
25/1152 PM.
MARINE LAYER CLOUDS WITH PATCHY FOG WILL REOCCUR EACH NIGHT FROM
THE COASTS TO THE COASTAL VALLEYS, EXPANDING INTO THE VALLEYS
OVER THE WEEKEND. TEMPERATURES WILL TREND COOLER, WITH BELOW
NORMAL TEMPERATURES THROUGH SUNDAY. A SLOW WARMING TREND WILL
BEGIN ON MONDAY.
SHORT TERM (TDY-SUN)
26/941 AM.
***UPDATE***
MORNING SATELLITE SHOWS THE MARINE LAYER IN PLACE ALONG THE COAST,
ALTHOUGH IT IS VERY SLOWLY BEGINNING TO ERODE IN PLACES. MID- TO
HIGH CLOUDS CAN ALSO BE SEEN SHIFTING INTO SOUTHERN CA. AS PRESSURE
HEIGHTS CONTINUE TO FALL, CLOUDS WILL CONTINUE TO INCREASE
FURTHER SOUTHWARD. THE DEEPENING MARINE LAYER DUE TO OFFSHORE
FLOW, ALONG WITH THE INCREASING CLOUDS, WILL RESULT IN
COOLING DAYTIME TEMPERATURES THROUGH SUNDAY, AFTER WHICH
TEMPERATURES REMAIN FAIRLY STABLE THROUGH LATE NEXT WEEK. HIGHS
WILL LARGELY RUN IN THE 70S, WITH A HANDFUL OF FAR INLAND LOCATIONS
WARMING INTO THE 80S AND LOW 90S, AND COASTAL LOCATIONS GENERALLY
REACHING THE MID- TO UPPER-60S.
AS THE PRESSURE GRADIENT TIGHTENS, WINDS WILL BEGIN TO INCREASE
THIS EVENING, PEAKING ON SATURDAY. WIND ADVISORIES HAVE BEEN
ISSUED FOR THE ANTELOPE VALLEY AND WESTERN ANTELOPE FOOTHILLS
FROM 11 AM PDT TODAY THROUGH 5 AM PDT SUNDAY FOR GUSTS TO AROUND
50 MPH. THE NBM 24-HOUR MAX WIND GUST FOR THESE TWO REGIONS, ALONG
WITH A SHORT STRETCH OF I-5, REST OF TODAY AND SATURDAY IS 45 MPH
WITH A MUCH BROADER AREA OF MAX GUSTS TO 35 MPH. ADDITIONAL
WIND ADVISORIES ARE IN EFFECT FOR THE SANTA BARBARA SW COAST AND
SANTA YNEZ WESTERN RANGE FOR SUNDOWNER WINDS 5 PM PDT THIS EVENING
THROUGH 3 AM PDT TOMORROW AND AGAIN SATURDAY NIGHT INTO SUNDAY
MORNING. OFFSHORE NORTHWEST WINDS WINDS WILL REACH 30 MPH WITH
GUSTS UP TO 50 MPH. THE SANTA BARBARA BEACHES WILL EXPERIENCE
BREEZY ONSHORE WINDS DURING THESE SAME TIMEFRAMES, WITH GUSTS
RANGING 25 TO 35 MPH.
***FROM PREVIOUS DISCUSSION***
THE NEXT THREE DAYS (AND BEYOND) WILL BE DOMINATED BY A PERSISTENT
NIGHT THROUGH LATE MORNING (OR EVEN AFTERNOON) LOW CLOUD PATTERN.
THIS PATTERN IS THE RESULT OF UNUSUAL CYCLONIC FLOW GENERATED BY A
SERIES OF UPPER LOWS MOVING THROUGH THE PACNW ALONG WITH STRONG
ONSHORE FLOW (~9MB PEAK). LOW CLOUDS WILL ARRIVE IN THE EVENINGS
AND WILL BE SLOW TO CLEAR WITH SOME CLOUDS LINGERING INTO THE
AFTERNOON ACROSS WEST FACING NEARSHORE AREAS.
ANOTHER EFFECT OF THE STRONG ONSHORE FLOW WILL BE THE GUSTY WINDS
THROUGH THE PASSES AND CANYONS OF LA COUNTY INTO THE ANTELOPE
VALLEY. LOOK FOR PERSISTENT GUSTY WINDS, WITH ISOLATED STRONG
GUSTS, IN THE AFTERNOON TO EVENING HOURS THROUGH SUNDAY. AS
USUAL, THE STRONGEST WINDS WILL BE OVER THE INTERIOR, ESPECIALLY
THE ANTELOPE VALLEY.
THE COMBINATION OF FALLING HGTS, STRONG ONSHORE FLOW AND A DEEP
PERSISTENT MARINE LAYER WILL BRING COOLING TO MOST AREAS TODAY
THROUGH SUNDAY. MOST CST AND VLY MAX TEMPS WILL ONLY BE IN THE 70S
THROUGH THE PERIOD WITH MID TO UPPER 60S ACROSS THE BEACHES AND A
SMATTERING OF 80 OR 81 DEGREE READINGS IN THE WARMEST VLY
LOCATIONS. THESE MAX TEMPS ARE 3 TO 6 DEGREES UNDER NORMAL FOR THE
CSTS AND 6 TO 12 DEGREES FOR THE VLYS.
LONG TERM (MON-THU)
26/159 AM.
NOT MUCH CHANGE IN THE JUNE GLOOM FORECAST FOR THE END OF THE
MONTH AND INTO JULY. A SERIES OF UPPER LOWS MOVING THROUGH THE
PACNW WILL KEEP CYCLONIC FLOW ALOFT THROUGH THE PERIOD. MDT TO STG
ONSHORE FLOW WILL CONTINUE THROUGH THE PERIOD XCP ON MON WHEN
THERE WILL BE A NOTICEABLE RELAXATION OF THE ONSHORE GRADIENTS.
LOOK FOR THE NIGHT THROUGH MORNING LOW CLOUD PATTERN TO CONTINUE
ALTHOUGH IT SHOULD BE A LITTLE LESS INTENSE IN COVERAGE AND
DURATION ON MONDAY.
LOOK FOR 2 TO 4 DEGREES OF WARMING MONDAY WITH THE WEAKER ONSHORE
FLOW, BUT ALL THAT WARMING WILL BE LOST TUESDAY AS THE ONSHORE
FLOW STRENGTHENS AGAIN. NOT MUCH CHANGE ON WEDNESDAY AND THEN A
LITTLE MORE WARMING ON THURSDAY AS THE UPPER LEVEL TROFFING IS
FORECAST TO WEAKEN. MAX TEMPS WILL REMAIN MANY DEGREES UNDER
NORMAL THROUGH THE PERIOD.
AVIATION
26/0907Z.
AT 0832Z AT KLAX, THE MARINE LAYER WAS 1400 FT DEEP. THE TOP OF
THE INVERSION WAS AT 4800 FEET WITH A TEMPERATURE OF 19 C.
HIGH CONFIDENCE IN VFR TAFS FOR DESERT AIRFIELDS (KPMD & KWJF).
MODERATE CONFIDENCE IN THE REMAINDER OF THE TAFS. TIMING OF
FLIGHT CAT CHANGES COULD BE OFF +/- 2 HOURS AND CIG HEIGHTS
+/- 300 FT.
KLAX...MODERATE CONFIDENCE IN TAF. OVC010 CONDS COULD ARRIVE AS
EARLY AS 12Z. VFR TRANSITION COULD OCCUR ANYTIME BETWEEN 20Z AND
22Z. GOOD CONFIDENCE THAT THERE WILL BE NO EAST WIND COMPONENT.
KBUR...MODERATE CONFIDENCE IN TAF. THERE IS A 30 PERCENT CHC OF
BKN004 OVC008 CONDS 12Z-15Z. THERE IS A 25 PERCENT CHC OF OVC008
CONDS LASTING TO 16Z. VFR TRANSITION COULD OCCUR ANYTIME BETWEEN
1730Z AND 19Z.
MARINE
26/936 AM.
SMALL CRAFT ADVISORY (SCA) LEVEL WIND GUSTS ARE EXPECTED TO
EXPAND INTO THE INNER WATERS FOCUSED ACROSS THE WESTERN AND
SOUTHERN SANTA BARBARA CHANNEL AND NORTH OF POINT SAL TODAY,
PEAKING SATURDAY BEFORE GRADUALLY DIMINISHING THROUGH MONDAY.
LOCAL GUSTS MAY APPROACH 35 KT NEAR PT WITH A 30 PERCENT CHANCE OF
GALE CONDITIONS ACROSS THE CENTRAL PART OF THE SANTA BARBARA
CHANNEL SATURDAY EVENING. THERE IS A 30 PERCENT CHANCE OF SCA
CONDITIONS EXPANDING INTO THE SOUTHERN INNER WATERS ALONG AND
SOUTH OF POINT MUGU/MALIBU SATURDAY AFTERNOON TO EVENING.
SEAS WILL NEAR 10 FT SATURDAY EVENING THROUGH AT LEAST MONDAY
MORNING FOCUSED ACROSS THE OUTER WATERS. BEYOND, CONDITIONS LOOK
TO QUIET DOWN A BIT THROUGH MID NEXT WEEK.
LOX WATCHES/WARNINGS/ADVISORIES
CA...WIND ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 3
AM PDT SATURDAY FOR ZONES 349-351. (SEE LAXNPWLOX).
WIND ADVISORY IN EFFECT FROM 5 PM SATURDAY TO 3 AM PDT SUNDAY
FOR ZONES 349-351. (SEE LAXNPWLOX).
WIND ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT SUNDAY FOR
ZONES 381-383. (SEE LAXNPWLOX).
PZ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 3
AM PDT SUNDAY FOR ZONE 645. (SEE LAXMWWLOX).
SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO 3
AM PDT SATURDAY FOR ZONE 650. (SEE LAXMWWLOX).
SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM SATURDAY TO 3 AM
PDT SUNDAY FOR ZONE 650. (SEE LAXMWWLOX).
SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM PDT MONDAY FOR
ZONES 670-673-676. (SEE LAXMWWLOX).
PUBLIC...CROPP/RORKE
AVIATION...RORKE
MARINE...MUNROE
SYNOPSIS...PHILLIPS/CILIBERTI
WEATHER.GOV/LOSANGELES
EXPERIMENTAL GRAPHICAL HAZARDOUS WEATHER OUTLOOK AT:
HTTPS://WWW.WEATHER.GOV/ERH/GHWO?WFO=LOX
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