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000 FXUS64 KLCH 132046 AFDLCH AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAKE CHARLES LA 346 PM CDT MON OCT 13 2008 .SYNOPSIS... A WARM DOME OF HIGH PRESSURE...WHICH RESIDES ACROSS VIRGINIA...WILL DRIFT SOUTH...REACHING THE FLORIDA PANHANDLE BY THURSDAY...BEFORE BREAKING DOWN ON FRIDAY. WAVES IN THE EASTERLIES ARE BEING DUCTED ALONG THE SOUTHERN PERIPHERY OF THIS DOME...TRAVELING THROUGH FLORIDA AND INTO THE GULF OF MEXICO. A SALIENT EASTERLY WAVE IS CURRENTLY MOVING THROUGH THE CENTRAL GULF OF MEXICO...AND IS FORECAST TO MOVE ONSHORE TEXAS BY TUESDAY MORNING...BEFORE MERGING WITH A STATIONARY COLD FRONT CURRENTLY SITUATED ACROSS CENTRAL TEXAS BY TUESDAY EVENING. AT CIRRUS LEVEL...HIGH PRESSURE RIDGES FROM THE SIERRA MADRE OCCIDENTAL RANGE OF MEXICO THROUGH KENTUCKY. && .DISCUSSION... A COOL CONVEYOR-BELT AIRSTREAM IS IN PLACE AS MODIFIED ATLANTIC AIR ASCENDS SLANTWISE WHILE PASSING OVER THE CONTINENTAL AIR OF LOUISIANA AND SOUTHEAST TEXAS. CLOUDS ARE THE RESULT. THE CONVEYOR-BELT SYSTEM...PARTLY MAINTAINED BY THE EASTERLY WAVES TREKKING ACROSS THE GULF OF MEXICO...WILL REMAIN IN PLACE UNTIL THIS FRIDAY. SEE OUTLOOK" onClick="return popup(this, 'notes')">OUTLOOK. NOCTURNAL TEMPERATURES WILL BE RUNNING ABOUT 10 DEGREES ABOVE NORMAL. AFTERNOON HUMIDITIES WILL BE RUNNING ABOVE NORMAL AS WELL. && .AVIATION... IFR CEILING ARE POSSIBLE NEAR DAWN...BECOMING A MVFR CEILING BY MIDMORNING. && .OUTLOOK... A CANADIAN HIGH WILL BUILD SOUTH THROUGH THE GREAT PLAINS...PUSHING A SHARP COLD FRONT THROUGH THE FORECAST AREA ON FRIDAY. && .PRELIMINARY POINT TEMPS/POPS... KLCH 70 88 71 84 69 / 20 10 20 40 30 KBPT 71 88 71 83 69 / 20 10 30 50 30 KAEX 67 87 66 86 65 / 10 10 10 20 40 KLFT 69 86 70 86 67 / 10 10 10 20 20 && .LCH WATCHES/WARNINGS/ADVISORIES... LA...NONE. TX...NONE. GM...SMALL CRAFT ADVISORY FROM 7 AM TUESDAY TO 1 AM CDT WEDNESDAY FOR THE FOLLOWING ZONES: WATERS FROM CAMERON, LA TO HIGH ISLAND, TX EXTENDING FROM 20 NM TO 60 NM...WATERS FROM INTRACOASTAL CITY, LA TO CAMERON, LA EXTENDING FROM 20 NM TO 60 NM...WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY, LA EXTENDING FROM 20 NM TO 60 NM. && TRARES $$