000 FXUS66 KLOX 200455 AFDLOX SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 854 PM PST TUE MAR 19 2002 VERY QUIET WEATHER PATTERN THE NEXT FEW DAYS THANKS TO THE UPR RIDGE OVHD...AND DRY...WARM LOWER-LEVEL TEMPS. 00Z SOUNDINGS SHOW AN EXTREMELY DRY ATMOSPHERE OVER SRN CA. NEUTRAL TO WEAK OFFSHORE PRES GRADS WILL CONTINUE THROUGH WEDNESDAY. WE GET ON THE BACKSIDE OF THE UPR RIDGE WED NIGHT...AND SOUTHWESTERLY FLOW ALOFT INCREASES AHEAD OF NEXT LONGWAVE TROUGH TO AFFECT THE REGION THIS WEEKEND. BOUNDARY LAYER TEMPS WARM ABOUT 4 DEGREES OVER TODAYS...SO EXPECT WED HIGHS TO BE ABOUT A CATEGORY WARMER. AS WEAK ONSHORE FLOW RETURNS THURSDAY...IMD COAST WILL COOL DOWN...VALLEYS WILL BE AT LEAST AS WARM AS WED AND THE FAR INLAND VALLEYS WILL BE SLIGHTLY WARMER. EVERYBODY STARTS TO COOL DOWN FRIDAY THROUGH THE WEEKEND AS UPR TROUGH CRUISES BY AND WE HAVE QUITE AN INCREASE IN CLOUDINESS. MOISTURE NOT ALL THAT IMPRESSIVE WITH THE WEEKENDS SYSTEM AND THE CORE OF UPR LEVEL ENERGY REMAINS NORTH OF SRN CA...BUT A CHC OF SHOWERS SEEMS PRUDENT AT THIS POINT FOR SAT THROUGH MON. NO NEED TO UPDATE ZONES THIS EVENING. LAX 0000. MOYER .LOX...NONE.