439  
FXUS66 KLOX 301833  
AFDLOX  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA  
1133 AM PDT MON JUN 30 2025  
   
SYNOPSIS
 
30/1045 AM.  
 
SKIES WILL BE CLEAR EXCEPT FOR NIGHT THROUGH MORNING LOW CLOUDS  
ACROSS THE COASTS AND SOME VALLEYS THROUGH NEXT WEEKEND.  
AFTERNOON HIGH TEMPERATURES WILL BE 3 TO 6 DEGREES BELOW NORMAL  
THROUGH THE WEEKEND.  
 

 
   
SHORT TERM (TDY-THU)
 
30/1053 AM.  
 
A QUIET WEATHER PATTERN IS EXPECTED THIS WEEK ACROSS SOUTHWEST  
CALIFORNIA WITH TEMPERATURES NEAR TO SLIGHTLY BELOW NORMAL. A WEAK  
UPPER LOW CURRENTLY OVER THE BAY AREA WILL SLOWLY DRIFT SOUTH  
TUESDAY AND WEDNESDAY. THIS WILL BRING ABOUT A SLOW RISE IN THE  
MARINE LAYER DEPTH AND BRING A FEW DEGREES OF COOLING TO THE  
COASTAL VALLEYS AND EVENTUALLY BRING SOME LOW CLOUDS THERE AS  
WELL, POSSIBLY AS EARLY AS TUESDAY MORNING. OTHERWISE, A LOT MORE  
OF THE SAME WEATHER THIS WEEK WITH CLOUDS CLEARING TO THE COAST  
EACH AFTERNOON. MODERATE TO STRONG ONSHORE FLOW WILL MAINTAIN THE  
USUAL GUSTY WINDS INTO THE ANTELOPE VALLEY EACH AFTERNOON BUT  
MOSTLY BELOW ADVISORY LEVELS.  
   
LONG TERM (FRI-MON)
 
30/1055 AM.  
 
REALLY JUST MORE OF THE SAME FRIDAY THROUGH THE WEEKEND WITH  
TEMPERATURES VERY SIMILAR DAY TO DAY AND LOW CLOUDS PUSHING IN TO  
SOME OF THE VALLEYS EACH MORNING.  
 
ENSEMBLE BASED LONG RANGE FORECASTS DO SHOW A SUBSTANTIAL SHIFT  
IN THE WEATHER TOWARDS THE MIDDLE OF NEXT WEEK (JULY 8TH OR 9TH).  
A VERY WARM UPPER HIGH IS FORECAST TO DEVELOP AND TRIGGER THE  
FIRST HEATWAVE OF THE SUMMER. THE MDLS HAVE ALSO BEEN CONSISTENTLY  
HINTING AT THE FIRST MONSOONAL MOISTURE PUSH OF THE SEASON AS  
WELL WHICH WOULD BRING THE THREAT OF AFTERNOON CONVECTION TO THE  
AREA IF IT DEVELOPS. PLEASE STAY TUNED AS WE MONITOR THIS  
DEVELOPING SITUATION OVER THE UPCOMING DAYS.  
 

 
   
AVIATION
 
30/1049Z.  
 
AT 0823Z AT KLAX, THE MARINE LAYER WAS 1100 FT DEEP. THE TOP OF  
THE INVERSION WAS AT 2400 FEET WITH A TEMPERATURE OF 26 CELSIUS.  
 
HIGH CONFIDENCE IN VFR TAFS WITH AFTERNOON/EVENING GUSTY SW WINDS  
AT AIRFIELDS: KPRB, KWJF AND KPMD.  
 
MODERATE CONFIDENCE IN REMAINING AIRFIELDS. TIMING OF CIG/VSBY  
RESTRICTIONS MAY BE OFF +/- 2 HOURS AND FLIGHT CAT MINIMUMS BY 1.  
 
KLAX...MODERATE CONFIDENCE IN 12Z TAF. ARRIVAL AND DEPARTURE OF  
CIGS MAY BE OFF BY 2 HOURS. NO SIGNIFICANT WIND ISSUES EXPECTED.  
 
KBUR...MODERATE CONFIDENCE IN 12Z TAF. THERE IS A 10% CHANCE OF  
BKN003-006 CIGS THRU 15Z MON AND A 20% CHANCE FOR SIMILAR CIGS  
AFTER 09Z TUE. OTHERWISE, VFR CONDITIONS WILL PREVAIL WITH  
SEASONABLE ONSHORE FLOW.  
 

 
   
MARINE
 
30/841 AM.  
 
FOR THE OUTER WATERS, MODERATE TO HIGH CONFIDENCE IN CURRENT  
FORECAST. THROUGH TUESDAY, CONDITIONS ARE MUCH QUIETER THAN  
USUAL, WITH WINDS AND SEAS EXPECTED TO REMAIN BELOW SMALL CRAFT  
ADVISORY (SCA) CRITERIA. THERE IS A 30-50% CHANCE OF SCA WINDS ON  
WEDNESDAY. THEN, INCREASING TO LIKELY CHANCES FOR THE REMAINDER OF  
THE WORK WEEK - WITH A LOW CHANCE FOR GALE FORCE WINDS THURSDAY  
AFTERNOON THROUGH THE WEEKEND. SEAS ARE EXPECTED TO BE NEAR SCA  
LEVELS WEDNESDAY NIGHT THROUGH THE WEEKEND, ESPECIALLY NORTH OF  
PT. CONCEPTION AND 50 NM FROM THE SHORELINE.  
 
FOR THE INNER WATERS NORTH OF POINT SAL, MODERATE TO HIGH  
CONFIDENCE IN CURRENT FORECAST. THROUGH WEDNESDAY, WINDS AND SEAS  
ARE EXPECTED TO REMAIN BELOW SCA CRITERIA. THERE IS A 30-50%  
CHANCE OF SCA LEVEL WINDS ON THURSDAY AND FRIDAY.  
 
FOR THE INNER WATERS SOUTH OF POINT CONCEPTION, MODERATE CONFIDENCE  
IN CURRENT FORECAST. LOCAL SCA WIND GUSTS ARE POSSIBLE NEARSHORE  
MAILBU AND ACROSS THE SAN PEDRO CHANNEL MON AND TUE EVENING. WIND  
GUSTS WILL APPROACH SCA LEVELS ACROSS WESTERN PORTIONS OF THE SBA  
CHANNEL MON AND TUE EVENING. BEST CHANCES FOR SCA WINDS APPEAR TO  
BE ON FRIDAY ACROSS WESTERN PORTIONS OF THE SBA CHANNEL. ELSEWHERE,  
CONDITIONS ARE EXPECTED TO REMAIN BELOW SCA LEVELS THROUGH FRIDAY.  
 
PATCHY DENSE FOG WILL IMPACT THE COASTAL WATERS, ESPECIALLY NORTH  
OF POINT CONCEPTION THROUGH MONDAY.  
 

 
   
LOX WATCHES/WARNINGS/ADVISORIES
 
 
CA...NONE.  
PZ...NONE.  
 

 
 

 
 
PUBLIC...MW/RORKE  
AVIATION...BLACK  
MARINE...BLACK/LUND  
SYNOPSIS...MW  
 
WEATHER.GOV/LOSANGELES  
 
EXPERIMENTAL GRAPHICAL HAZARDOUS WEATHER OUTLOOK AT:  
HTTPS://WWW.WEATHER.GOV/ERH/GHWO?WFO=LOX  
 
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