551
FXUS66 KLOX 070333
AFDLOX
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
833 PM PDT SAT JUN 6 2026
SYNOPSIS
06/322 AM.
TEMPERATURES WILL REMAIN NEAR TO SLIGHTLY BELOW NORMAL THROUGH
AT LEAST EARLY NEXT WEEK AS A SERIES OF LOW PRESSURE SYSTEMS MOVE
THROUGH THE REGION. LOW CLOUDS AND FOG WILL COVER MOST OF THE
COAST AND VALLEY LOCATIONS THROUGH AT LEAST MID MORNING, CLEARING
TO NEAR THE BEACHES EACH AFTERNOON. A WARMING TREND IS EXPECTED
LATER NEXT WEEK.
SHORT TERM (SAT-TUE)
06/722 PM.
UPPER LEVEL TROUGH PUSHING THROUGH NORTHERN AND CENTRAL CALIFORNIA
TODAY, CONTINUING STRONG ONSHORE FLOW NEAR THE SURFACE. THIS
RESULTED IN A DEEPER MARINE LAYER THIS MORNING WITH A COOLING
TREND IN MOST AREAS. IN ADDITION, ONSHORE WINDS GUSTING BETWEEN
25 AND 40 MPH REMAIN COMMON ACROSS THE INTERIOR THIS AFTERNOON
AND EVENING. THE UPPER TROUGH WILL CONTINUE TO PUSH THROUGH THE
REGION ON SUNDAY. LEADING TO LOWERING HEIGHTS, AND A FURTHER
DEEPENING OF THE MARINE LAYER, AROUND 3500 FEET FOR LA BASIN,
AND 1500-2000 FEET ACROSS THE CENTRAL COAST. THE DEEPENING MARINE
LAYER WILL LIKELY LEAD TO AREAS OF DRIZZLE, ESPECIALLY FOR THE
LA COUNTY COASTAL SLOPES AND FOOTHILLS. IN ADDITION, THERE WILL
LIKELY BE A DELAY IN CLEARING FOR COAST AND VALLEYS AND LEAD TO
SLIGHTLY COOLER TEMPERATURES ON SUNDAY.
BY MONDAY HIGH PRESSURE STARTS TO BE BUILD IN FROM THE WEST. THE
MARINE LAYER WILL BEGIN TO SHRINK WITH PROGRESSIVELY EARLIER
CLEARING TIMES NEXT WEEK. TEMPERATURES WILL BE GRADUALLY WARMING
AS WELL, ESPECIALLY INLAND, BUT GENERALLY STAYING IN THE 80S IN
THE VALLEYS AND 90S IN THE FAR INTERIOR.
GUSTY SUNDOWNER WINDS ARE EXPECTED TO MAKE A RETURN ON MONDAY
EVENING AND TUESDAY EVENING, WITH THE STRONGEST WINDS LIKELY
FOCUSED ACROSS WESTERN PORTIONS FROM GAVIOTA TO SAN MARCOS PASS.
THESE AREAS HAVE THE POTENTIAL TO SEE GUSTS BETWEEN 35 AND 45 MPH,
WITH ISOLATED GUSTS TO 50 MPH POSSIBLE NEAR GAVIOTA. AS A RESULT,
WIND ADVISORIES MAY BE NECESSARY AS WE DRAW CLOSER.
LONG TERM (WED-SAT)
06/230 PM.
HIGH PRESSURE IS EXPECTED TO STRENGTHEN ACROSS THE EASTERN PACIFIC
AND CALIFORNIA AT LEAST THROUGH WEDNESDAY. THIS WILL BRING AT
LEAST SOME WARMING TO MOST AREAS, BUT DEFINITELY FAVORING THE
INTERIOR AREAS LIKE THE ANTELOPE VALLEY AND INTERIOR SLO AND SANTA
BARBARA COUNTIES WHICH WILL BE MOSTLY IMMUNE TO ANY ONSHORE
INFLUENCE. IN THOSE AREAS THERE IS 60-80 PERCENT CHANCE OF 100
DEGREES OR HIGHER BY THE END OF NEXT WEEK. COASTAL VALLEYS WILL
WARMING AS WELL BUT THE LATEST ENSEMBLE PRESSURE GRADIENTS SUGGEST
AT LEAST A 5-7MB ONSHORE FLOW EACH AFTERNOON WHICH SHOULD KEEP
WARMER VALLEY HIGHS IN THE LOW TO MID 90S AND DOWNTOWN LA AND
OTHER INTERMEDIATE AREAS BETWEEN THE COAST AND VALLEYS IN THE IN
THE 70S TO LOWER 80S. NIGHT AND MORNING LOW CLOUDS AND FOG ARE
EXPECTED TO BE A DAILY OCCURRENCE ACROSS ALL COASTAL AREAS NEXT
WEEK AS WELL AS MOST COASTAL VALLEYS THROUGH AT LEAST MID WEEK AND
POSSIBLY BEYOND DEPENDING ON THE STRENGTH OF THE HIGH.
SUNDOWNERS ARE EXPECTED TO WEAKEN BY WEDNESDAY, BUT POSSIBLY
RETURNING NEXT WEEKEND.
AVIATION
06/2350Z.
AT 2345Z AT KLAX, THE MARINE LAYER WAS 2000 FEET DEEP. THE TOP OF
THE INVERSION WAS 3200 FEET WITH A TEMPERATURE OF 20 DEGREES
CELSIUS.
FOR 00Z TAF PACKAGE, HIGH CONFIDENCE IN FORECASTS FOR KWJF, KPMD
AND KPRB. FOR ALL OTHER SITES, MODERATE CONFIDENCE IN FORECASTS
DUE TO UNCERTAINTIES WITH BEHAVIOR OF THE MARINE LAYER. TIMING OF
FLIGHT CATEGORY CHANGES COULD BE +/- 3 HOURS OF CURRENT FORECASTS.
KLAX...MODERATE CONFIDENCE IN 00Z TAF. ANOTHER EARLY ARRIVAL OF
MVFR CIGS EXPECTED THIS EVENING. 10 PERCENT CHANCE OF CIGS
LINGERING THROUGH SUNDAY AFTERNOON. NO SIGNIFICANT EASTERLY WIND
COMPONENT IS EXPECTED.
KBUR...MODERATE CONFIDENCE IN 00Z TAF. TIMING OF FLIGHT CATEGORY
CHANGES COULD BE +/- 3 HOURS OF CURRENT FORECAST.
MARINE
06/823 PM.
FOR THE OUTER WATERS, MODERATE TO HIGH CONFIDENCE IN CURRENT
FORECAST. THROUGH THURSDAY, HIGH CONFIDENCE IN A COMBINATION OF
SMALL CRAFT ADVISORY (SCA) LEVEL WINDS AND SEAS. ADDITIONALLY,
THERE IS A GALE WARNING OVER THE TWO NORTHERN OUTER ZONES THROUGH
LATE TONIGHT, AND A 60-80% CHANCE OF GALE FORCE WINDS ACROSS
THESE ZONES AGAIN SUNDAY LATE AFTERNOON THROUGH LATE SUNDAY NIGHT.
MONDAY AND TUESDAY, THERE IS A 30-40% CHANCE OF GALE FORCE WINDS
DURING THE SAME TIME PERIOD, WITH THE BEST CHANCES ON MONDAY. SCA
WINDS ARE LIKELY TO PERSIST THROUGH WEDNESDAY NIGHT, THEN
WEAKENING ON THURSDAY.
FOR THE INNER WATERS NORTH OF POINT SAL, HIGH CONFIDENCE IN
CURRENT FORECAST. TODAY THROUGH WEDNESDAY, SCA LEVEL WIND ARE
EXPECTED, MAINLY IN THE AFTERNOON AND EVENING HOURS, WITH SEAS
NEAR OR ABOVE SCA LEVELS. ON THURSDAY, WINDS AND SEAS ARE
EXPECTED TO REMAIN BELOW SCA LEVELS.
FOR THE INNER WATERS SOUTH OF POINT CONCEPTION, MODERATE TO HIGH
CONFIDENCE IN CURRENT FORECAST. FOR A MAJORITY OF THE SOUTHERN
INNER WATERS, HIGH CONFIDENCE IN WINDS AND SEAS REMAINING BELOW
SCA LEVELS THROUGH THURSDAY. THE ONLY EXCEPTION WILL BE THE WESTERN
HALF OF THE SANTA BARBARA CHANNEL, WHERE THERE IS A 40-60% CHANCE
OF SCA LEVEL WINDS SUNDAY THROUGH TUESDAY, MAINLY IN THE LATE
AFTERNOON AND EVENING HOURS.
LOX WATCHES/WARNINGS/ADVISORIES
CA...NONE.
PZ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM PDT MONDAY FOR
ZONES 645-676. (SEE LAXMWWLOX).
GALE WARNING IN EFFECT UNTIL 3 AM PDT SUNDAY FOR ZONES
670-673. (SEE LAXMWWLOX).
GALE WARNING IN EFFECT FROM 3 PM SUNDAY TO 3 AM PDT MONDAY
FOR ZONES 670-673. (SEE LAXMWWLOX).
PUBLIC...GOMBERG/MW
AVIATION...GOMBERG
MARINE...RAT/CC
SYNOPSIS...MW/CC/DB
WEATHER.GOV/LOSANGELES
EXPERIMENTAL GRAPHICAL HAZARDOUS WEATHER OUTLOOK AT:
HTTPS://WWW.WEATHER.GOV/ERH/GHWO?WFO=LOX
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