991
FXUS66 KLOX 260908
AFDLOX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
208 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)
26/1207 AM.
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 NOTICABLE RELAXATION OF THE ONSHORE GRADINETS.
LOOK FOR THE NIGHT THROUGH MORNING LOW CLOUD PATTERN TO CONTINUE
ALTHOUGH IT SHOULD BE A LITTLE LESS INTENSE IN COAVERAGE 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
26/1208 AM.
SMALL CRAFT ADVISORY (SCA) LEVEL WIND GUSTS EXPECTED TO INCREASE
EARLY TODAY ACROSS THE NORTHERN OUTER WATERS AND WILL EXPAND
SOUTH THROUGH TODAY 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 670-673-676. (SEE LAXMWWLOX).
PUBLIC...RORKE
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
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page