000 
FXUS66 KLOX 061751
AFDLOX
SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
945 AM PST WED FEB 6 2002

AVAILABLE 12 MODEL DATA...MESOETA VS. AVN...IN GOOD AGREEMENT THROUGH
48 HOURS. WILL FOLLOW THE AVN FOR THIS FORECAST. NO MORNING UPDATE.

FOR THE NEXT 12 HOURS...PATCHY FOG AND LOW CLOUDS HAVE APPEARED NEAR
THE COAST AND LOCALLY INTO PORTIONS OF COASTAL SECTIONS THIS MORNING.
ALOFT THE RIDGE IS STILL EXPECTED TO BREAK DOWN SOME TODAY AND COOLER
TEMPERATURES WILL BE THE RESULT...MAINLY NEAR THE COAST WHERE THE
RATHER COOL SEABREEZE WILL INTERRUPT DAYTIME HEATING.

FOR THE 12 TO 48 HOUR PERIOD...THURSDAY WILL BE ANOTHER RELATIVELY
COOL DAY WITH COOLING 850 MB TEMPS AND DROPS IN THICKNESS. THE
INCREASED ONSHORE FLOW WILL FOCUS MOST COOLING IN COASTAL
SECTIONS...HOWEVER TEMPS WILL LIKELY GO DOWN IN ALL SECTIONS. THE
MARINE LAYER WILL BECOME A BIT MORE EXTENSIVE THURSDAY NIGHT AND
FRIDAY MORNING...WITH THE POSSIBILITY OF LOW CLOUDS REACHING THE LOWER
VALLEYS FRIDAY MORNING. THE RIDGE ALOFT WILL START TO BUILD AGAIN LATE
FRIDAY...SO TEMPERATURES COULD START TO INCREASE IN THE MTN AND
DESERT SECTIONS FRIDAY. THE ONSHORE FLOW WITNESSED ON THURSDAY BECOMES
MORE NORTHERLY FRIDAY AFTERNOON...EXPOSING SBA COUNTY MTNS AND SOUTH
COAST...THE SANTA CLARITA/SAN FERNANDO VALLEYS AND THE CENTRAL COAST
TO SOME GUSTY NORTH/NORTHWEST WINDS AS THE LAX-SFO GRADIENT 
INTENSIFIES TO NEAR -7 MB.

FOR THE EXTENDED...THE RIDGE ALOFT BUILDS RATHER STRONGLY INTO SOCAL 
OVER THE WEEKEND...AND AT THE SAME TIME SURFACE HIGH PRESSURE BUILDS
INTO THE GREAT BASIN...CAUSING ANOTHER LOW LEVEL FLOW REVERSAL...THIS
TIME TO OFFSHORE FLOW. THEREFORE...THE MARINE INFLUENCE WILL BE 
REDUCED YET PROBABLY NOT ELIMINATED WITH PATCHY LOW CLOUDS HANGING 
NEAR THE COAST. COOLER TEMPERATURES ARE DUE AGAIN EARLY NEXT WEEK AS
THE RIDGE STARTS TO BREAK DOWN ONCE AGAIN.

LAX 000. SWEET.

.LOX...SMALL CRAFT ADVISORY (SEE LAXCWFLAX).