Issued by NWS San Joaquin Valley, CA
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000 FXUS66 KHNX 222249 AFDHNX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA 249 PM PST SUN NOV 22 2009 .SYNOPSIS...MOSTLY CLEAR THROUGHOUT THE AREA TONIGHT WITH THE EXCEPTION OF LOW CLOUDS DUE TO UPSLOPE WINDS CONTINUING OVER THE FOOTHILLS...THE SIERRA NEVADA...AND THE TEHACHAPI MOUNTAINS. OTHERWISE HIGH PRESSURE WILL PREVAIL WITH DRY CONDITIONS AND GRADUALLY WARMING TEMPERATURES THROUGH THIS WEEK INCLUDING THE HOLIDAY WEEKEND. && .DISCUSSION...CLOUDS ARE LINGERING ALONG THE FOOTHILLS AND TEHACHAPIS...OTHERWISE SKIES ARE MOSTLY SUNNY ACROSS INTERIOR CENTRAL CALIFORNIA. TEMPERATURES ARE CURRENTLY RUNNING NEAR TO SLIGHTLY ABOVE READINGS 24 HRS AGO. MODELS SUGGEST LINGERING LOW LEVEL MOISTURE WILL KEEP SOME CLOUDS ALONG THE EAST SIDE AND SOUTH END THROUGH TOMORROW MORNING. FOG DEVELOPMENT OVERNIGHT TONIGHT SHOULD BE SIMILAR TO LAST NIGHT...LIMITED IN COVERAGE AND WITH VISIBILITIES MOSTLY ABOVE 1/4 MILE. DIFFERENCES CONTINUE AMONGST THE MODELS REGARDING THE EVOLUTION OF THE LOCAL SYNOPTIC PATTERN...THE ECMWF BEING ABOUT 12 HRS SLOWER THAN THE GFS WITH A FRONTAL SYSTEM PROGGED TO REACH THE PACIFIC COAST EITHER THURSDAY AFTERNOON OR EARLY AM FRIDAY. EXPECT DRY CONDITIONS AND A GENERAL WARMING TREND FOR THE NEXT FEW DAYS AHEAD OF THIS APPROACHING SYSTEM...WITH HIGHS CLIMBING TO SEVERAL DEGREES ABOVE CLIMO BY MIDWEEK. AFTER THANKSGIVING...TEMPERATURES WILL TREND BACK DOWNWARD TO NEAR SEASONAL AVERAGES THROUGH THE END OF THE HOLIDAY WEEKEND AS THE FRONTAL TROUGH PUSHES THROUGH THE REGION. PRECIPITATION CHANCES CONTINUE TO LOOK NEGLIGIBLE WITH THIS SYSTEM AS THE BULK OF THE ENERGY IS EXPECTED TO PULL AWAY TO THE NORTH. && .AVIATION... SCT LOW CLOUDS WILL PERSIST IN THE SIERRA NEVADA FOOTHILLS AND ALONG THE NORTH AND WEST FACING SLOPES OF THE TEHACHAPI MOUNTAINS THROUGH 00Z MONDAY. PATCHY FOG DEVELOPING IN THE SJV FROM 12Z THROUGH 18Z WITH LOCAL IFR FOR VIS. OTHERWISE...VFR CONDITIONS CAN BE EXPECTED ACROSS THE CENTRAL CALIFORNIA INTERIOR UNTIL 00Z TUESDAY. && .AIR QUALITY ISSUES... NONE && .HNX WATCHES/WARNINGS/ADVISORIES... NONE. && $$ PUBLIC...JEB AVN/FW...JDB WEATHER.GOV/HANFORD
