SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION
NWS LOS ANGELES/OXNARD CA
AFDLOX 920 PM PST WED MAR 14 2001
FAIR SKIES OVER MOST OF THE DISTRICT THIS EVENING. ONLY EXCEPTION
HAS BEEN OVER CENTRAL COAST AS LOW CLOUDS AND FOG HAVE AFFECTED
THIS AREA SINCE LATE THIS AFTERNOON...WITH THE LOW CLOUDS NOW INTO
THE SANTA YNEZ VALLEY AS WELL. LOW CLOUDS A BIT MORE SPOTTY NOW
OVER SBP COUNTY COAST. FARTHER SOUTH...EXTENSIVE AREA OF LOW CLOUDS
OVER THE INNER WATERS S OF THE CHANNEL ISLANDS WERE EXPANDING
TOWARD THE COAST. VERY WEAK EDDY EVIDENT IN LOW LEVEL WIND FIELD.
LOW CLOUDS SHOULD HAVE NO PROBLEM MOVING INTO THE LAX COUNTY COAST.
MARINE LAYER DEPTH THIS EVENING AROUND 1000 FEET AT LAX ACCORDING
TO ACARS...AND ABOUT 700 FT AGL AT BUR. LOW CLOUDS SHOULD MAKE IT
INTO THE LAX COUNTY VALLEYS OVERNIGHT. FOR VTU COUNTY COAST AND
VALLEYS...EXTENT OF LOW CLOUDS FOR TONIGHT SOMEWHAT QUESTIONABLE.
WILL MAKE A FINAL DECISION ON THIS WITH A ZONE UPDATE.
EVENING MODELS IN GENERAL AGREEMENT WITH MONIR DIFFERENCES. BROAD
NORTHWEST FLOW WILL LINGER OVER THE DISTRICT THROUGH FRIDAY...WITH
AN UPPER LEVEL TROUGH MOVING WELL EAST OF THE DISTRICT FRI. AT THIS
TIME...IT APPEARS THE MAIN IMPACT ON THE LOCAL WEATHER WILL BE AN
INCREASE IN THE THE NORTH TO SOUTH GRADIENTS FRI...RESULTING IN
GUSTY CANYON WINDS FOR SBA COUNTY...AND GUSTY WINDS FOR SOME
MOUNTAIN AREAS IN VTU AND LAX COUNTIES. AT THIS TIME DOES NOT
APPEAR THIS WILL BE AN EXCEPTIONALLY WINDY EVENT. WILL SCALE BACK
WINDY WORDING IN SOME ZONES FRIDAY TO BREEZY. S SBA COUNTY COAST
AND MOUNTAINS MAY WIND UP BEING WINDY THROUGH THE CANYONS...SO WILL
NOT CHANGE THIS. OTHERWISE...GENERALLY FAIR WEATHER THROUGH
FRIDAY...WITH SOME NIGHT AND MORNING LOW CLOUDS ALONG THE COAST AND
INTO SOME OF THE VALLEYS THROUGH FRIDAY MORNING. LOOK FOR A ZONE
UPDATE BY 945 PM.
IN THE EXTENDED...FAIR WEATHER WITH A WARMING TREND IS EXPECTED SAT
THRU MON AS UPPER LEVEL HIGH PRESSURE LINGERS OFF THE COAST...AND
MAY EXTEND INTO THE DISTRICT BY MON. SOME MEDIUM RANGE MODEL
DIFFERENCES...WITH AVN ODD MODEL OUT WITH THIS IDEA. EVEN SO...LOOKS
LIKE A PLEASANT STRETCH OF WEATHER DURING THE EXTENDED PERIOD.
LAX 0000. SIRARD.
.LAX...GALE WARNING AND SMALL CRAFT ADVISORY (SEE LAXCWFLAX).