000 AGXX40 KNHC 091831 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 132 PM EST WED NOV 09 2011 MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA AND TROPICAL N ATLC...AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... A COLD FRONT IS RAPIDLY MOVING SE ACROSS THE GULF EXTENDING FROM SOUTHERN MISSISSIPPI TO NEAR TAMPICO MEXICO. OBSERVATIONS FROM OFFSHORE BUOYS AND OIL PLATFORMS CONTINUE TO REPORT FRESH TO MODERATE NORTHERLY WINDS BEHIND THE FRONT AND WINDS WILL INCREASE TO NEAR GALE FORCE THIS EVENING IN THE FAR SW GULF AS THE FRONT MOVES THROUGH THAT AREA. SREF 34 KT WIND PROBABILITIES REMAIN NEAR 100% FROM LATE TONIGHT THROUGH THU NIGHT WITH GEFS ENSEMBLE PROBABILITIES ALSO NEAR 100%. THUS A GALE WARNING REMAINS IN EFFECT FROM 06 UTC THU THROUGH 12 UTC FRI S OF 21N W OF 94W. SEAS WILL BUILD TO UP TO 16 FT IN THE GALE WARNING AREA IN N SWELL. LIGHT AND VARIABLE WINDS WILL PRECEDE THE FRONT. THE FRONT WILL REACH FROM THE FLORIDA BIG BEND TO THE BAY OF CAMPECHE THU MORNING...MOVING SE OF THE GULF FRI MORNING WITH HIGH PRES BUILDING IN BEHIND THE FRONT. WINDS WILL DIMINISH FROM NW TO SE BEHIND THE FRONT WITH THE HIGH CENTER MOVING TO OVER NORTHERN FLORIDA BY SAT MORNING WITH SOUTHERLY RETURN FLOW BECOMING ESTABLISHED OVER THE W GULF SAT AND SUN. CARIBBEAN SEA AND TROPICAL N ATLC... A WEAK PRES PATTERN OVER THE REGION WILL PERSIST THROUGH THU WITH LIGHT TO FRESH WINDS ACROSS THE CARIBBEAN. A COLD FRONT WILL APPROACH THE NW CARIBBEAN THU NIGHT PUSHING SE OF THE YUCATAN CHANNEL FRI MORNING...REACHING FROM E CUBA TO THE GULF OF HONDURAS SAT MORNING WHERE IT WILL STALL OUT AND DISSIPATE. FRESH NORTHERLY WINDS WILL ARRIVE BEHIND THE FRONT WITH SEAS TO 9 FT NEAR THE YUCATAN CHANNEL. FRESH NE-E WINDS WILL THEN DOMINATE ACROSS THE CARIBBEAN SAT AND SUN WITH BUILDING HIGH PRES TO THE N AND LOWER PRES ASSOCIATED WITH THE MONSOON TROUGH IN THE FAR SW CARIBBEAN. MEANWHILE...LARGE MIXED N AND E SWELLS TO 10 FT WILL GRADUALLY SUBSIDE IN THE TROPICAL N ATLC WATERS THROUGH LATE FRI. SW N ATLC S OF 31N W OF 55W... TROPICAL STORM SEAN NEAR 28.3N 70.6W 994 MB AT 1 PM EST MOVING NNW AT 3 KT. MAXIMUM SUSTAINED WINDS 50 GUSTS 60 KT. A TROPICAL STORM WARNING REMAINS IN EFFECT FOR BERMUDA. LARGE SWELLS GENERATED BY SEAN WILL CONTINUE TO AFFECT THE COASTLINES OF THE SOUTHEAST U.S. AND BERMUDA CAUSING LIFE-THREATENING SURF AND RIP CURRENTS. REFER TO STATEMENTS ISSUED BY YOUR LOCAL NWS OFFICES. A BROAD AREA OF 12 FT SEAS OR GREATER CONTINUES WITH PERSISTENT AND LONG NE-E FETCH ASSOCIATED WITH THE OUTER CIRCULATION OF SEAN. NDBC BUOY 41010 E OF CAPE CANAVERAL FL NEARLY 420 NM W-NW OF SEAN CONTINUES TO REPORT 11-12 FT SEAS. SEAN WILL MOVE TO 28.4N 70.6W TONIGHT...29.6N 70.2W THU...THEN MOVING N OF THE AREA TO 31.5N 68.4W THU NIGHT WITH WINDS AND SEAS GRADUALLY DIMINISHING AND SUBSIDING IN THE WAKE OF SEAN. A COLD FRONT WILL QUICKLY MOVE INTO THE NW PORTION THU NIGHT REACHING FROM 31N77W TO CAPE CANAVERAL THU NIGHT...THEN FROM NEAR BERMUDA TO CENTRAL CUBA FRI AFTERNOON PUSHING E OF 55W SUN. FRESH TO MODERATE NORTHERLY WINDS WILL ARRIVE BEHIND THE FRONT AND WILL PERSIST SAT AND SUN AS HIGH PRES BUILDS IN FROM THE W-NW WITH A TIGHT PRES GRADIENT ACROSS THE REGION BETWEEN THE STRONG HIGH PRES AND A WEAKENING COLD FRONT. WARNINGS... GULF OF MEXICO... .GALE WARNING S OF 21N W OF 94W...GMZ082. .CARIBBEAN SEA AND TROPICAL N ATLC... .NONE. .SW N ATLC... .TROPICAL STORM WARNING N OF 26N BETWEEN 65W AND 76W...AMZ080. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ FORECASTER LEWITSKY