000 FXUS66 KSGX 090908 AFDSGX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN DIEGO CA 100 AM PST MON NOV 9 2009 .SYNOPSIS...HIGH PRESSURE WILL BRING FAIR AND WARM WEATHER THROUGH TUESDAY...EXCEPT FOR AREAS OF COASTAL LOW CLOUDS AND FOG DURING THE NIGHTS AND MORNINGS. MORE CLOUDS AND COOLING WEDNESDAY THROUGH FRIDAY WITH LOCAL GUSTY WINDS AS AN UPPER LEVEL LOW PRESSURE SYSTEM MOVES THROUGH. WARMER AGAIN NEXT WEEKEND. && .DISCUSSION...FOR SOUTHWEST CALIFORNIA INCLUDING SAN DIEGO... ORANGE...SOUTHWEST SAN BERNARDINO AND WEST RIVERSIDE COUNTIES. 578 SW FLOW ALOFT AND WEAK OFFSHORE FLOW WILL RESULT IN FAIR AND WARM WEATHER WITH LESS EXTENSIVE STRATUS THROUGH TUE. THERE WILL BE PATCHES OF DENSE FOG IN THE COASTAL AREAS AND WRN VALLEYS DURING THE LATE NIGHTS AND MORNINGS. MAX TEMPS WILL BE 4 TO 9 DEGREES ABOVE SEASONAL AVERAGES INLAND. SW FLOW ALOFT AHEAD OF A TROUGH WILL BRING HIGH CLOUDS TUE-WED. COOLER WED AS HEIGHTS DECREASE AND ONSHORE FLOW INCREASES. THE 564 TROUGH WILL MOVE THROUGH THU NIGHT. CANNOT RULE OUT THE POSSIBILITY OF LIGHT SHOWERS AS THE TROUGH MOVES THROUGH. HOWEVER...MOISTURE IS LIMITED SO WILL CONTINUE TO INDICATE LOW LEVEL POPS BUT NOT ENOUGH TO GENERATE MEASURABLE PRECIP IN THE FORECAST FOR NOW. MUCH COOLER WITH LOCAL GUSTY SW WINDS IN THE MTS AND DES THU-FRI WITH TEMPS 5 DEG BELOW NORMAL. WARMER ON THE WKD AS HEIGHTS RECOVER. WARMING TREND CONTINUES EARLY NEXT WEEK WITH TEMPS SLIGHTLY ABOVE NORMAL UNDER A WEAK UPPER RIDGE AND WEAK OFFSHORE FLOW. && .AVIATION... 090930Z...LIMITED MARINE LAYER STRATUS INTO THE MORNING. EXPECT AREAS OF FOG 3-5SM LOCALLY BLO 1SM WEST OF THE MTNS THROUGH 17Z TODAY. LOW CLOUDS HAVE BEEN PUSHED OFFSHORE...BUT COULD RETURN TO COASTAL AREAS BTWN 10Z AND 16Z WITH CIGS BLO FL 010...ALTHOUGH CONFIDENCE IS LOW. FOG WITH VIS 3-5SM SHOULD RETURN TO AREAS WEST OF THE MTNS TONIGHT AFT 03Z. ABOVE THE MARINE STRATUS LAYER...EXPECT SCT-BKN CIRRUS AT OR ABOVE FL200 WITH UNRESTRICTED VIS. PG && .SGX WATCHES/WARNINGS/ADVISORIES...NONE. && $$ PUBLIC...MACKECHNIE AVIATION...PG