Area Forecast Discussion
Issued by NWS Los Angeles, CA

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000 FXUS66 KLOX 052353 AFDLOX SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 345 PM PST THU MAR 5 2015 ...UPDATED AVIATION DISCUSSION... .SYNOPSIS... A LARGE HIGH WILL PERSIST INTO EARLY NEXT WEEK WITH FAIR SKIES AND ABOVE NORMAL TEMPERATURES...TO PEAK OVER THE WEEKEND. ONSHORE FLOW WILL RETURN BY LATE MONDAY FOR A COOLING TREND AND MARINE LAYER AT THE COAST. A LOW SYSTEM WILL APPROACH BY MIDWEEK FOR AN INCREASE IN CLOUDINESS AND COOLER TEMPERATURES. && .SHORT TERM (TODAY-SUN)...QUIET WEATHER PATTERN THROUGH THE WEEKEND AS HIGH PRESSURE BUILDS OVER THE STATE AND WEAK OFFSHORE FLOW CONTINUES. ONLY FEATURE OF INTEREST REALLY WILL BE THE WELL ABOVE NORMAL TEMPS WITH HIGHS 10-15 DEGREES ABOVE NORMAL. HIGHS EXPECTED TO PEAK SATURDAY FOR COAST/VALLEY AREAS AS WEAK ONSHORE FLOW RETURNS SUNDAY AND COOLS THINGS OFF A FEW DEGREES BUT STILL AT LEAST 5 DEGREES ABOVE NORMAL. MTNS AND ANTELOPE VALLEY WILL CONTINUE TO WARM THROUGH SUNDAY. .LONG TERM (MON-THU)...THE LITTLE INSIDE TROF THAT BRINGS A BRIEF ONSHORE FLOW RETURN SUNDAY WILL SHIFT EAST MONDAY WITH THE RIDGE RE-STRENGTHENING LATE MONDAY AND TUESDAY. SO AFTER A BIT OF A "COOL DOWN" LATE IN THE WEEKEND TEMPS SHOULD AGAIN TREND WARMER MON/TUE, POSSIBLY CLOSE TO 90 IN SOME OF THE WARMER VALLEYS WHICH WOULD BE A GOOD 20 DEGREES ABOVE NORMAL. THEN TURNING COOLER WED/THU AS THE RIDGE BREAKS DOWN AND A WEAK TROF MOVES INTO NRN CALIFORNIA. WE`LL SEE A BIG INCREASE IN HIGH CLOUDS WITH THIS AS EARLY AS LATE TUESDAY BUT IT`S NOT LOOKING REAL GOOD FOR RAIN THIS FAR SOUTH. SOMEWHAT BETTER CHANCES NORTH OF PT CONCEPTION BUT EVEN THERE ANY AMOUNTS WOULD BE INSIGNIFICANT. THE RIDGE RETURNS QUICKLY AFTER THAT FOR A WARMING TREND GOING INTO NEXT WEEKEND. && .AVIATION...05/2345Z. AT 2330Z AT KLAX... THERE WAS NO INVERSION. VFR CONDITIONS EXPECTED THROUGH PERIOD...EXCEPT A TEN PERCENT CHANCE OF VLIFR/LIFR CONDITIONS AT KPRB BETWEEN 11Z-15Z. OTHERWISE OFFSHORE FLOW WILL BRING A 30 PERCENT CHANCE OF LGT-MDT TURBULENCE/LLWS ACROSS PORTIONS OF VENTURA AND LOS ANGELES COUNTIES ON FRIDAY. KLAX...VFR CONDITIONS THROUGH PERIOD. KBUR...VFR CONDITIONS THROUGH PERIOD. A 30 PERCENT CHANCE OF LGT-MDT TURBULENCE/LLWS BETWEEN 16Z-00Z ON FRIDAY. && .MARINE...05/200 PM... WEAK TO LOCALLY MODERATE NORTHERLY FLOW ACROSS THE REGION THROUGH FRIDAY WITH WEAK NORTHEAST FLOW NEAR THE IMMEDIATE COASTLINE. FLOW WILL BE LOCALLY MODERATE AT TIMES ALONG THE PORTIONS OF THE VENTURA AND LOS ANGELES COUNTY COASTLINE AFFECTED BY SANTA ANA WINDS. WIND SPEEDS WILL INCREASE ON SATURDAY AND SUNDAY AND THERE IS A TWENTY PERCENT CHANCE THEY MAY REACH SMALL CRAFT ADVISORY THRESHOLDS. && .LOX WATCHES/WARNINGS/ADVISORIES... HIGH RIP CURRENT RISK (SEE LAXSRFLOX). && $$ PUBLIC...MW AVIATION...GOMBERG MARINE...KJ SYNOPSIS...JLD WWW.WEATHER.GOV/LOSANGELES

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