372
FXUS66 KLOX 260557
AFDLOX
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1057 PM PDT THU JUN 25 2026
SYNOPSIS
25/653 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 (THU-SUN)
25/826 PM.
***UPDATE***
SHORT TERM FORECAST CONCERNS INCLUDE A DEEP MARINE LAYER THAT IS
EXPECTED TO COVER THE COASTS AND COASTAL VALLEYS TONIGHT, WITH A
CHANCE OF BEING SOMEWHAT DEEPER, MOVING FARTHER INLAND THAN LAST
NIGHT. THIS WOULD PUSH LOW CLOUDS ACROSS INTERIOR SAN LUIS OBISPO
COUNTY, INTO THE SANTA CLARITA VALLEY, AND UP THE LOWER COASTAL
SLOPES. THE COMBINATION OF A +8 MB LAX TO DAGGETT SURFACE PRESSURE
GRADIENT AND A DEVELOPING COASTAL EDDY WILL HELP TO DEEPEN THE
MARINE LAYER AND PUSH THE LOW CLOUDS WELL INLAND.
ANOTHER SIDE EFFECT OF THE STRONG ONSHORE FLOW IS GUSTY WINDS
THROUGH THE PASSES AND CANYONS OF LA COUNTY INTO THE ANTELOPE
VALLEY. LAKE PALMDALE HAS BEEN SEEING GUSTS OF 45 TO 52 MPH SINCE
AROUND 300 PM THIS AFTERNOON. GUSTS ELSEWHERE IN THE AREA ARE
LIMITED TO 25 TO 35 MPH SO WILL NOT ISSUE A WIND ADVISORY FOR THE
ISOLATED STRONG GUSTS. THE WINDS ARE EXPECTED TO DIMINISH LATER
THIS EVENING AND OVERNIGHT. STRONG ONSHORE GRADIENTS WILL
CONTINUE THROUGH SATURDAY, FINALLY WEAKENING SOME ON SUNDAY.
EXPECT TO SEE PERSISTENT GUSTY WINDS, WITH ISOLATED STRONG GUSTS,
IN THE AFTERNOON TO EVENING HOURS THROUGH SATURDAY AND POSSIBLY
INTO SUNDAY. AS USUAL, THE STRONGEST WINDS WILL BE OVER THE
INTERIOR, ESPECIALLY THE ANTELOPE VALLEY.
AS FOR TEMPERATURES, A COOLING TREND IS EXPECTED THROUGH THE
WEEKEND, AS HEIGHTS ALOFT LOWER UNDER THE INFLUENCE OF A LOW
PRESSURE SYSTEM IN THE PACIFIC NORTHWEST. SOME HIGH CLOUDS WILL
MOVE OVER THE AREA AT TIMES, HELPING TO KEEP THE HIGH TEMPERATURES
DOWN SOMEWHAT. EXPECT DAYTIME TEMPERATURES TO COOL BY SEVERAL
DEGREES EACH DAY THROUGH SUNDAY BEFORE A GRADUAL WARMING TREND
BEGINS ON MONDAY.
LONG TERM (MON-THU)
25/1133 AM.
PACNW LOW PRESSURE SYSTEM WILL CONTINUE ROTATING NORTHWARD INTO
CANADA WITH ANOTHER CLOSED LOW FORMING OVER WASHINGTON EARLY NEXT
WEEK. ENSEMBLE SOLUTIONS BEGIN TO DIFFER IN THE DETAILS HEADING
INTO MIDDLE OF NEXT WEEK BUT ALL FEATURE GENERAL TROUGHING FOR
THE UPPER-LEVEL PATTERN OVER CA THROUGH LATE NEXT WEEK. THIS WILL
KEEP ONSHORE FLOW IN PLACE WITH LOW STRATUS/FOG ALONG COASTAL
AREAS AND VALLEYS EACH EVENING AND MORNING. WINDS WILL RUN LIGHTER
NEXT WORK WEEK. TEMPERATURES WILL REMAIN FAIRLY CONSISTENT INTO
MID- TO LATE NEXT WEEK, WITH DAYTIME HIGHS RIGHT AROUND
CLIMATOLOGICAL NORMS TO SLIGHTLY ABOVE.
AVIATION
26/0553Z.
AT 0512Z 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
25/826 PM.
SMALL CRAFT ADVISORY (SCA) LEVEL WIND GUSTS EXPECTED TO INCREASE
OVERNIGHT ACROSS THE NORTHERN OUTER WATERS AND WILL EXPAND SOUTH
THROUGH FRIDAY AND INTO THE WEEKEND. SCA WINDS WILL BE STRONGEST
ON SATURDAY, AND WILL REACH INTO THE NEARSHORE WATERS ALONG THE
CENTRAL COAST AND SANTA BARBARA CHANNEL AT TIMES (MORE OFTEN THAN
NOT). LOCAL GUSTS MAY APPROACH 35 KT NEAR PT. CONCEPTION SATURDAY
EVENING INTO THE OVERNIGHT HOURS. SEAS WILL NEAR 10 FT SATURDAY
EVENING THROUGH AT LEAST MONDAY MORNING. BEYOND, CONDITIONS LOOK
TO QUIET DOWN A BIT THROUGH MID NEXT WEEK.
LOX WATCHES/WARNINGS/ADVISORIES
CA...NONE.
PZ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM PDT MONDAY FOR
ZONES 670-673. (SEE LAXMWWLOX).
SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM FRIDAY TO 9 AM PDT
MONDAY FOR ZONE 676. (SEE LAXMWWLOX).
PUBLIC...CILIBERTI/CROPP
AVIATION...RORKE
MARINE...BATZ/BLACK
SYNOPSIS...PHILLIPS/CILIBERTI
WEATHER.GOV/LOSANGELES
EXPERIMENTAL GRAPHICAL HAZARDOUS WEATHER OUTLOOK AT:
HTTPS://WWW.WEATHER.GOV/ERH/GHWO?WFO=LOX
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