018
FXUS66 KLOX 271032
AFDLOX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
332 AM PDT THU AUG 27 2026
SYNOPSIS
27/244 AM.
VERY HOT CONDITIONS WILL DOMINATE THE WEEK, WITH A HIGH RISK OF
HEAT-RELATED ILLNESS. ISOLATED SHOWERS AND THUNDERSTORMS ARE
POSSIBLE TODAY AND FRIDAY. SIGNIFICANT COOLING IS LIKELY BY
SUNDAY OR MONDAY.
SHORT TERM (TDY-SAT)
27/314 AM.
DANGEROUSLY HOT AND MUGGY CONDITIONS WILL AGAIN DOMINATE THE
WEATHER TODAY AND FRIDAY. MID AND HIGH LEVEL MOISTURE HAS MOVED
INTO THE AREA FROM DECAYING TROPICAL SYSTEMS OFF MEXICO SO THERE
WILL BE AN INCREASE IN CLOUDS WITH A SMALL CHANCE OF AN ISOLATED
SHOWER PRETTY MUCH ANYWHERE IN THE SOUTHWEST CALIFORNIA, THOUGH
HIGHER ELEVATIONS WILL HAVE A SLIGHTLY HIGHER CHANCE SINCE ANY
DROPS WILL BE EVAPORATING QUICKLY THROUGH THEIR PATH TO THE
SURFACE. ALSO CAN'T RULE OUT AN ISOLATED CLAP OF THUNDER, THOUGH
HI RES MODELS ARE FOCUSING MOST OF THE INSTABILITY FARTHER NORTH
IN THE STATE.
TEMPERATURES THE NEXT COUPLE DAYS WILL REMAIN HOT, BUT THE
ADDITION OF CLOUDS AND POSSIBLY SOME LIGHT SHOWERS DOES INTRODUCE
AN ELEMENT OF UNCERTAINTY INTO THE FORECAST, ESPECIALLY TODAY AS
CLOUDS ARE LIKELY PEAKING TODAY. MOST OF THE FORECAST MODELS ARE
INDICATING 1-6 DEGREES OF COOLING TODAY, WITH THE BIGGER
DECREASES ACROSS THE INTERIOR, WHILE COASTAL AREAS ACTUALLY RISE
1-3 DEGREES OVER YESTERDAY. THIS IS A FAIRLY COMMON SCENARIO WHEN
TROPICAL MOISTURE MOVES INTO THE AREA DURING A HEAT WAVE SO
CONFIDENCE IS RELATIVELY HIGH THAT THE MODELS ARE ON THE RIGHT
TRACK WITH THE TEMPS. WITH LESS CLOUDS LIKELY FRIDAY SOME REBOUND
IN TEMPS INLAND IS LIKELY, WHILE COASTAL AREAS START TO COOL AS
ONSHORE FLOW RETURNS.
LONG TERM (SUN-WED)
27/331 AM.
A STEADY COOLING TREND WILL BEGIN NO LATER THAN SATURDAY AND
CONTINUE THROUGH MONDAY WITH HIGH TEMPERATURES DECREASING BY ABOUT
5 DEGREES EACH DAY. BY EARLY NEXT WEEK HIGHS SHOULD BE VERY CLOSE
TO NORMAL AND EVEN POSSIBLY A FEW DEGREES BELOW NORMAL AS A TROUGH
DEVELOPS OVER THE PAC NW. BY AROUND THE MIDDLE OF NEXT WEEK THERE
WILL BE ANOTHER TROPICAL SYSTEM MOVING WEST OFF THE COAST OF
MEXICO THAT COULD INTRODUCE SOME ADDITIONAL MOISTURE AND SHOWER
CHANCES LOCALLY, BUT TEMPERATURES SHOULD BE CLOSE TO NORMAL LEVELS
FOR THIS TIME OF YEAR.
AVIATION
27/0556Z.
AT 0555Z AT KLAX, THERE WAS NO MARINE LAYER. THE TOP OF THE
INVERSION WAS 2000 FEET WITH A TEMPERATURE OF 33 DEGREES CELSIUS.
HIGH CONFIDENCE IN THE 06Z TAF PACKAGE. VFR CONDITIONS ARE
EXPECTED FOR ALL SITES THROUGH THE PERIOD AS INCREASING HIGH
CLOUDS TONIGHT ARE EXPECTED TO INHIBIT ANY STRATUS FORMATION.
HOWEVER, THERE IS A 10% CHANCE OF LOW CIGS FORMING ALONG SOME OF
THE COASTLINE, MOST LIKELY ALONG THE CENTRAL COAST. IF
RESTRICTIONS WERE TO OCCUR, LIFR ARE EXPECTED.
KLAX...MODERATE TO HIGH CONFIDENCE IN THE 06Z TAF AS VFR
CONDITIONS ARE EXPECTED THROUGH THE PERIOD.
KBUR...HIGH CONFIDENCE IN THE 06Z TAF AS VFR CONDITIONS ARE
EXPECTED THROUGH THE PERIOD.
MARINE
26/759 PM.
FOR THE OUTER WATERS, MODERATE TO HIGH CONFIDENCE IN CURRENT
FORECAST. THROUGH MONDAY, THERE IS HIGH CONFIDENCE IN SMALL CRAFT
ADVISORY (SCA) LEVEL WINDS CONTINUING ALONG WITH STEEP, SHORT
PERIOD SEAS APPROACHING SCA LEVELS. ADDITIONALLY, THERE IS A 30%
CHANCE OF GALE FORCE WINDS ON SUNDAY AROUND POINT CONCEPTION.
FOR THE INNER WATERS NORTH OF POINT SAL, MODERATE CONFIDENCE IN
CURRENT FORECAST. THROUGH SUNDAY, THERE IS A 40-60% CHANCE OF SCA
LEVEL WINDS EACH AFTERNOON AND EVENING. ON MONDAY, HIGH CONFIDENCE
IN WINDS AND SEAS REMAINING BELOW SCA LEVELS. STEEP, SHORT-
PERIOD, SEAS CAN BE EXPECTED THROUGH THE WEEK.
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 MONDAY. THE ONLY EXCEPTION WILL BE THE WESTERN
HALF OF THE SANTA BARBARA CHANNEL WHERE THERE IS A 60-80% CHANCE
OF SCA LEVEL WINDS DURING THE AFTERNOON AND EVENING HOURS THURSDAY
THROUGH MONDAY. STEEP, SHORT-PERIOD, SEAS CAN BE EXPECTED THROUGH
THE WEEK.
BEACHES
26/824 PM.
SOUTHERLY SWELL FROM POST-TROPICAL STORM ISELLE IS MOVING THROUGH
THE COASTAL WATERS AND IS EXPECTED TO CONTINUE THROUGH THURSDAY.
SWELL HEIGHTS OF 3-5 FEET WITH A PERIOD OF 11-12 SECONDS CAN BE
EXPECTED, PRODUCING ELEVATED SURF AND DANGEROUS RIP CURRENTS
ALONG SOUTH- FACING BEACHES OF VENTURA AND LA COUNTIES. THEREFORE,
A BEACH HAZARDS STATEMENT IS IN EFFECT THROUGH 11 PM THURSDAY.
LOX WATCHES/WARNINGS/ADVISORIES
CA...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT FRIDAY FOR
ZONES 38-87-88-349>358-362-366>376-378>383-548. (SEE LAXNPWLOX).
BEACH HAZARDS STATEMENT IN EFFECT THROUGH THIS EVENING FOR
ZONES 87-354-362-366. (SEE LAXCFWLOX).
HEAT ADVISORY IN EFFECT UNTIL 8 PM PDT FRIDAY FOR ZONES
341>345-347-348. (SEE LAXNPWLOX).
RED FLAG WARNING IN EFFECT UNTIL 3 PM PDT FRIDAY FOR ZONES
345-353-375>380. (SEE LAXRFWLOX).
PZ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM PDT FRIDAY FOR
ZONES 670-673-676. (SEE LAXMWWLOX).
PUBLIC...MW
AVIATION...MW
MARINE...RAT/CILIBERTI
BEACHES...RAT/CILIBERTI
SYNOPSIS...RK
WEATHER.GOV/LOSANGELES
EXPERIMENTAL GRAPHICAL HAZARDOUS WEATHER OUTLOOK AT:
HTTPS://WWW.WEATHER.GOV/ERH/GHWO?WFO=LOX
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page