031 FXUS66 KLOX 231605 AFDLOX SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 900 AM PDT WED OCT 23 2002 MARINE LAYER QUITE DEEP ONCE AGAIN THIS MORNING...WITH PILOT REPORTS AND ACARS DATA INDICATING AROUND 4500 TO 5000 FEET THIS MORNING ACROSS THE LA BASIN. FURTHER NORTH...12Z VANDENBERG SOUNDING SHOWING MARINE LAYER DEPTH AT AROUND 2500 FEET. SATELLITE IMAGERY SHOWING CONSIDERABLE CLOUD COVERAGE ACROSS SOUTHERN AND CENTRAL CALIFORNIA...EXTENDING INTO THE LOWER COASTAL SLOPES. WITH VERY DEEP MARINE LAYER AND UPPER TROUGH APPROACHING COAST THIS AFTERNOON... EXPECT PARTLY TO MOSTLY CLOUDY CONDITIONS ACROSS THE FORECAST AREA TODAY. EXPECT ANOTHER COOL DAY...AND HAVE ADJUSTED TEMPERATURES DOWN IN A FEW ZONES TO CORRELATE WITH YESTERDAYS HIGHS. WHILE THE MODELS CONTINUE TO DIFFER SOMEWHAT ON DETAILS OVER THE NEXT COUPLE OF DAYS...SOME SORT OF UPPER TROUGH WITH A DEEP MARINE LAYER AND COOL CONDITIONS EXPECTED TO REMAIN THROUGH FRIDAY. WILL WAIT FOR 12Z AVN RUN AND COORDINATION CALL BETWEEN OFFICES TO BETTER DETERMINE PRECIP CHANCES FOR FRIDAY. LAX 000. GOMBERG .LOX...NONE.