471
FXUS66 KLOX 040322
AFDLOX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
822 PM PDT MON AUG 3 2026
SYNOPSIS
03/1144 AM.
SEASONABLY WARM WEATHER WILL CONTINUE AWAY FROM THE IMMEDIATE
COAST, WHILE FAR INTERIOR AREAS WILL CONTINUE TO BAKE UNDER TRIPLE
DIGIT TEMPERATURES ALL WEEK. ALONG THE COAST LOW CLOUDS AND
LOCALLY DENSE FOG WILL DEVELOP AND COULD LINGER INTO THE AFTERNOON
IN SOME AREAS.
SHORT TERM (MON-THU)
03/821 PM.
THE SEMI-PERMANENT HIGH PRESSURE SYSTEM OVER ARIZONA AND MOST OF
THE SOUTHWEST WILL PERSIST ALL WEEK, MAINTAINING VERY SIMILAR DAY
TO DAY WEATHER. STRONGER ONSHORE FLOW AND A DEEPER MARINE LAYER
BETWEEN 1200 AND 1500 FEET HAS BROUGHT SOME COOLING TO COASTAL AND
COASTAL VALLEY LOCATIONS AS COMPARED TO THE PAST FEW DAYS. IN
ADDITION, THERE COULD BE PATCHY DENSE FOG ACROSS PORTIONS OF THE
COAST, WITH BEST CHANCES ACROSS THE CENTRAL COAST. TEMPERATURES
REMAIN QUITE HOT ACROSS THE INTERIOR, WITH LITTLE CHANGE EXPECTED
THROUGH MUCH OF THE WEEK. WITH HIGHER CONFIDENCE OF THE HOT
TEMPERATURES PERSISTING, HAVE EXTENDED THE CURRENT HEAT WARNINGS
AND ADVISORIES THROUGH SATURDAY. AREAS UNDER THE HEAT WARNINGS
(ANTELOPE VALLEY, CUYAMA VALLEY, AND NORTHERN VENTURA MOUNTAINS)
WILL SEE TEMPERATURES OF 100 TO 107 DEGREES COMMON, WITH ISOLATED
READINGS OF 107 TO 110 DEGREES IN THE EASTERN ANTELOPE VALLEY.
LONG TERM (FRI-MON)
03/1223 PM.
INTERIOR HEAT WILL CONTINUE THROUGH AT LEAST FRIDAY OR SATURDAY
AND THERE IS A 60-80% CHANCE THAT THE CURRENT SUITE OF HEAT
HAZARDS WILL BE EXTENDED, POSSIBLY INTO THIS COMING WEEKEND AS
STRONG HIGH PRESSURE REMAINS LOCKED IN PLACE. VALLEYS AND EVEN
SOME COASTAL AREAS SHOULD SEE SOME ADDITIONAL WARMING LATE WEEK AS
ONSHORE FLOW WEAKENS AND THERE IS A 10-20% CHANCE THAT HEAT
ADVISORIES WILL BE NEEDED FRIDAY AND SATURDAY FOR THE VALLEYS.
MODELS ARE STILL INDICATING INCREASING MONSOON MOISTURE STARTING
AROUND FRIDAY AND PEAKING OVER THE WEEKEND WHICH COULD ADD TO THE
HEAT RISK FACTORS AND MAKE IT FEEL MORE STICKY AND UNCOMFORTABLE.
THOUGH AT THIS POINT CHANCES FOR ANY PRECIPITATION ARE 5% OR LESS.
BEYOND THAT A MAJORITY OF THE ENSEMBLE SOLUTIONS SHOW WEAKENING
HIGH PRESSURE OVER SOUTHERN CALIFORNIA WITH A SIGNIFICANT COOLING
TREND, WITH TEMPERATURES FALLING TO NEAR OR EVEN SLIGHTLY BELOW
NORMAL LEVELS.
AVIATION
03/2314Z.
AT 2320Z AT KLAX, THE MARINE LAYER WAS 900 FEET DEEP. THE TOP OF
THE INVERSION WAS NEAR 2400 FEET WITH A TEMP OF 28 C.
HIGH CONFIDENCE IN VFR CONDS FOR KPRB, KBUR, KVNY, KPMD AND KWJF.
THERE IS A 10% CHANCE FOR BRIEF LIFR CONDS AT KPRB/KBUR/KVNY
BETWEEN 11Z AND 15Z.
MODERATE CONFIDENCE WITH THE REMAINING TAFS. ARRIVAL OF CIGS
TONIGHT MAY BE OFF +/- 2 HOURS. THERE IS A 30% CHANCE FOR LIFR
CONDS AT KSBA, KOXR, KCMA TONIGHT, AND A 50% CHANCE FOR VLIFR
CONDS AT KSMX/KSBP FROM 07Z-15Z.
KLAX...MODERATE CONFIDENCE IN TAF. CIGS MAY ARRIVE BETWEEN 03Z
AND 05Z, WITH A 20% CHANCE CIGS REMAIN AOB 010 WHEN CIGS ARE
PRESENT. NO SIGNIFICANT EAST WIND COMPONENT EXPECTED.
KBUR...HIGH CONFIDENCE IN TAF. HOWEVER THERE IS A 10% CHANCE FOR
BRIEF LIFR CONDS AT KPRB/KBUR/KVNY BETWEEN 10Z AND 15Z.
MARINE
03/658 PM.
WINDS AND SEAS ARE EXPECTED TO REMAIN BELOW SMALL CRAFT ADVISORY
(SCA) CRITERIA THROUGH THE WEEK, WITH THE EXCEPTION OF NORTHWEST
WINDS LOCALLY GUSTING TO 20-25 KNOTS IN TYPICALLY WINDY AREAS NEAR
POINT CONCEPTION EACH AFTERNOON AND EVENING.
DENSE FOG MAY AFFECT PORTIONS OF THE COASTAL WATERS EACH NIGHT
THROUGH MORNING THROUGH MUCH OF THE WEEK, ESPECIALLY ACROSS THE
WATERS NORTH AND WEST OF POINT CONCEPTION.
LOX WATCHES/WARNINGS/ADVISORIES
CA...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT SATURDAY FOR
ZONES 38-377-381>383. (SEE LAXNPWLOX).
HEAT ADVISORY IN EFFECT UNTIL 8 PM PDT SATURDAY FOR ZONES
344-345-353-375-376-378>380. (SEE LAXNPWLOX).
PZ...NONE.
PUBLIC...GOMBERG/MW
AVIATION...GOMBERG
MARINE...LEWIS/KL
SYNOPSIS...MW
WEATHER.GOV/LOSANGELES
EXPERIMENTAL GRAPHICAL HAZARDOUS WEATHER OUTLOOK AT:
HTTPS://WWW.WEATHER.GOV/ERH/GHWO?WFO=LOX
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