000 AGXX40 KNHC 311818 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 215 PM EDT SAT OCT 31 2009 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... A COLD FRONT EXTENDS FROM THE WESTERN FLORIDA PANHANDLE TO THE CENTRAL BAY OF CAMPECHE. A QUIKSCAT PASS FROM 12Z THIS MORNING INDICATED A BROAD AREA OF 30 TO 35 KT NORTHERLY WINDS OVER THE SW GULF BEHIND THE FRONT...IN AGREEMENT WITH REPORTS FROM BUOY 42055 WHICH WAS SHOWING PEAK WINDS TO 35 KT. THE FRONT WILL CONTINUE TO PUSH EAST OVER THE NE GULF OF MEXICO...BUT STALL OVER THE SW GULF THROUGH EARLY MON. A REINFORCING IMPULSE WILL PUSH THE NORTHERN PORTION OF THE FRONT INTO THE ATLC...AND MAINTAIN NEAR GALE FORCE WINDS OVER THE FAR SW GULF OF MEXICO THROUGH MID WEEK. SW N ATLC S OF 31N AND W OF 55W... COLD FRONT EXTENDING FROM 1002 MB LOW PRES AT 30N45W TO 20N65W WILL SHIFT S TOWARD PUERTO RICO...HISPANIOLA...AND CUBA. BUOY REPORTS AND SCATTEROMETER DATA INDICATE 20 TO 25 KT NE TO E FLOW MAINLY E OF 70W. THE FRONT WILL STALL AND WEAKEN THROUGH TONIGHT AS WINDS DIMINISH BEHIND THE FRONT. LONG PERIOD SWELL UP TO 11 FT WILL PROPAGATE SOUTH TOWARD PUERTO RICO AND HISPANIOLA TONIGHT. BUOYS NORTH OF THESE ISLANDS ARE JUST STARTING TO SHOW BUILDING SEAS AS THE SWELL MOVES IN. THE SWELL WILL GRADUALLY DECAY THROUGH TUE. MEANWHILE A SECOND COLD FRONT WILL PUSH OFF THE GEORGIA COAST ON MONDAY...AND STALL FROM 31N75W TO CENTRAL FLORIDA BY LATE TUE. A REINFORCING SHOT ALOFT WILL MOVE THE FRONT EAST...AND DELIVER FRESH TO STRONG N TO NE WINDS OVER THE WATERS BETWEEN N FLORIDA AND BERMUDA BY WED...THEN DIMINISH BY THU. CARIBBEAN AND TROPICAL N ATLANTIC W OF 55W... FRESH TRADES ALONG MOST OF CARIBBEAN HAVE DIMINISHED AS THE PRES GRADIENT BETWEEN ATLC HIGH PRES AND LOW PRES OVER COLOMBIA RELAXED AHEAD OF A COLD FRONT MOVING THROUGH THE GULF OF MEXICO. THE EXCEPTIONS TO THIS ARE OVER THE GULF OF HONDURAS WHERE AN ASCAT PASS FROM 15Z SHOWED 15 TO 20 KT SE WINDS...AND OVER THE NE CARIBBEAN WHERE A 10Z INDICATE 15 TO 20 KT NE FLOW. IN ADDITION...LONG PERIOD NORTHERLY SWELL AS HIGH AS 7 FT WILL PUSH THROUGH THE ATLANTIC PASSAGES OF THE CARIBBEAN TONIGHT...AND GRADUALLY DECAY EARLY NEXT WEEK OVER THE EASTERN CARIBBEAN. THE SAME IS TRUE FOR THE WATERS NE OF THE LEEWARD ISLANDS. SCATTERED SHOWERS AND TSTMS WILL PERSIST OVER THE FAR SW CARIBBEAN INTO SUN...ON THE SE SIDE OF AN UPPER LOW OVER NORTHERN CENTRAL AMERICA. WARNINGS... ATLC... .NONE. CARIBBEAN... .NONE. GULF OF MEXICO... .GALE CONDITIONS TONIGHT S OF 23N W OF 93W. $$ FORECASTER CHRISTENSEN