068 FXUS66 KLOX 071538 AFDLOX SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 840 AM PDT WED OCT 7 2015 ...UPDATED MARINE DISCUSSION... .SYNOPSIS... A BUILDING RIDGE OF HIGH PRESSURE WILL BRING A WARMING TREND THROUGH THE END OF THE WEEK. TRIPLE DIGIT HEAT IS POSSIBLE FOR INLAND AREAS ON FRIDAY AND SATURDAY WHEN LIGHT OFFSHORE WINDS ARE EXPECTED. COOLER WEATHER IS LIKELY EARLY NEXT WEEK ALONG WITH A SLIGHT CHANCE OF SHOWERS AS LOW PRESSURE APPROACHES FROM THE SOUTH. && .SHORT TERM (TODAY-SAT)... WEAK OFFSHORE FLOW IS KEEPING SKIES CLEAR ACROSS THE AREA SAVE FOR SOME PATCHY LOW CLOUDS NEAR SANTA MARIA. OTHERWISE HGTS WILL CLIMB TO 588 DM AND THIS WITH OFFSHORE FLOW WILL ALLOW MAX TEMPS TO CLIMB INTO 80S ACROSS MOST COASTS AND VLYS WITH A SMATTERING OF 90S IN THE VLYS AND SOME 70S AND THE BEACHES. THERE WILL BE SLIGHT EDDY FORM OVERNIGHT WHICH STANDS A FAIR CHANCE OF BRING SOME LOW CLOUDS TO THE LGB-LAX AREA. THERE WILL BE WEAK OFFSHORE FLOW BUT THE LGB-LAX AREA IS THE ONE AREA THAT IS AFFECTED LEAST BY OFFSHORE FLOW. THAT SAID THERE IS A DECENT CHC OF SKIES REMAINING CLEAR ALL NIGHT LONG. THERE WILL BE A WEAK SUNDOWNER AS WELL AND THIS WILL KEEP SOME OVERNIGHT LOWS ALONG THE SBA SOUTH COAST IN THE 70S. OTHERWISE SKIES WILL BE CLEAR AND HGTS WILL CLIMB T0 591 DM. THE BEST OFFSHORE FLOW WILL BE ACROSS THE CENTRAL COAST AND MAX TEMPS THERE WILL ALL BE IN THE MID 80S TO LOWER 90S. SOUTH OF POINT CONCEPTION MAX TEMPS WILL BUMP UP A FEW MORE DEGREES AND WILL BE 8 TO 12 DEGREES ABOVE NORMAL. UPPER RIDGING AND OFFSHORE FLOW PEAK FRIDAY AND SATURDAY WITH 594 MB HGTS AND 4 MB OR SO OF OFFSHORE FLOW. THERE WILL BE SOME CANYON BREEZES BUT MORE THAN LIKELY THEY WILL NOT REACH ADVISORY LEVELS. MAXIMUM TEMPS WILL SOAR AND ALMOST ALL OF THE CSTS AND VLYS WILL BE IN THE UPPER 80S AND 90S. THERE WILL BE SOME TRIPLE DIGIT READINGS IN THE WARMEST SPOTS AND EVEN THE BEACHES WILL REACH TO THE LOWER 80S. AREAS NEAR THE BREEZY CANYONS WILL SEE OVERNIGHT LOWS IN THE 70S...BUT AREAS AWAY FROM THE WINDS WILL HAVE GOOD OVERNIGHT COOLING AS THE CLEAR SKIES...DRY AIR AND 12+ HOURS OF DARKNESS COMBINE. THE ONLY SILVER LINING WITH THIS HEAT OUTBREAK IS THAT THERE WILL BE LITTLE HUMIDITY SO IT WILL NOT FEEL AS BAD AS IT DID SEVERAL WEEKS AGO. THE LOWER HUMIDITY VALUES ALONG WITH THE CANYON WINDS WILL MAKE FOR A TWO DAY PERIOD OF ELEVATED FIRE DANGER. .LONG TERM (SUN-TUE)... THE RIDGE BREAKS DOWN SUN AND MON AS A LARGE UPPER LOW (IN FACT AND REMARKABLY THE SAME UPPER LOW THAT BROUGHT US THE RAIN ON SUNDAY. AS IT BOOMERANGS BACK AT US BY WAY OF NEW MEXICO AND NRN MEXICO) THIS WILL BRING NOTICEABLE COOLING SUNDAY AND JUST A LITTLE MORE COOLING MONDAY. STILL MAX TEMPS WILL REMAIN ABOVE NORMAL. TUESDAYS FORECAST IS A LITTLE BIT OF A MYSTERY AND DEPENDS ON THE EXACT TRACK OF THE UPPER LOW. THERE IS A SLIGHT CHC IT WILL BRING SOME SHOWERS TO THE AREA IN THE AFTERNOON BUT MORE THAN LIKELY ANY RAIN ASSOC WITH THIS SYSTEM WILL HOLD OFF UNTIL WEDNESDAY. TEMPS WILL COOL A FEW MORE DEGREES. && .AVIATION... 07/1130Z AT 1100Z...THERE WAS NO MARINE INVERSION AT KLAX. EXCEPT FOR PATCHY LOW CLOUDS AND LOCALLY DENSE FOG ON THE CENTRAL COAST...WITH LIFR TO VLIFR CONDS...SKIES WERE CLEAR ACROSS THE REGION THIS MORNING. SOME STRATUS WITH IFR TO LIFR CONDS SHOULD PUSH INTO THE SALINAS VALLEY BEFORE DAYBREAK. ANY LOW CIGS AND VSBYS SHOULD CLEAR BY MID MORNING. EXPECT STRATUS WITH IFR CONDS TO AFFECT COASTAL SECTIONS OF L.A. COUNTY LATE TONIGHT/THU MORNING. KLAX...MODERATE CONFIDENCE IN THE TAF 12Z TAF. THERE IS A 30 PERCENT CHANCE THAT CONDS WILL REMAIN VFR TONIGHT/THU MORNING. KBUR...HIGH CONFIDENCE IN THE 12Z TAF WITH VFR CONDS THROUGH THE PD. && .MARINE...07/835 AM PDT OUTER WATERS...HAVE ADDED SMALL CRAFT ADVISORY FOR ZONE 673 AND 676 THIS MORNING AND ZONE 670 FOR LATE THIS AFTERNOON WITH ALL OUTER WATERS EXPERIENCING NW WINDS 15 TO 25 KNOTS WITH GUSTS TO 30 KT FROM POINT SAL SOUTH TO AROUND SAN NICOLAS ISLAND. WINDS WILL BECOME MORE WIDESPREAD ACROSS THE OUTER WATERS BY THIS EVENING. THEER IS A 70 PERCENT CHANCE THAT SMALL CRAFT ADVISORIES WILL BE NEEDED ONCE AGAIN BY THURSDAY AFTERNOON AND CONTINUING THROUGH AT LEAST FRIDAY NIGHT...MAINLY THE WESTERN PORTIONS. TWO LONG PERIOD SOUTHERN HEMISPHERE SWELLS WILL MOVE THROUGH THE WATERS THURSDAY AND FRIDAY...AND BOTH WILL PERSIST INTO THE WEEKEND. A WSW SWELL WILL MOVE INTO THE WATERS FRIDAY NIGHT THROUGH SUNDAY...PEAKING NEAR 8 FEET AT 15 SECONDS OVER THE OUTER WATERS. INNER WATERS...THERE WILL BE SOME LOCAL OFFSHORE WINDS REMAINING BELOW SMALL CRAFT ADVISORY THRESHOLDS BETWEEN VENTURA AND MALIBU BOTH THURSDAY AND FRIDAY MORNINGS. 30 PERCENT CHANCE THAT SMALL CRAFT ADVISORY WILL BE NEEDED FOR ZONE 650 AND 655 BELOW THE PASSES AND CANYONS FROM VENTURA TO MALIBU. 10 PERCENT CHANCE FOR THE SAN PEDRO CHANNEL TO CATALINA ISLAND. OTHERWISE NO ISSUES THROUGH THE WEEKEND. && .LOX WATCHES/WARNINGS/ADVISORIES... SMALL CRAFT ADVISORY (SEE LAXMWWLOX). && $$ PUBLIC...RORKE AVIATION/MARINE...CK SYNOPSIS...SUKUP WWW.WEATHER.GOV/LOSANGELES