000 AGXX40 KNHC 280646 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 245 AM EDT TUE SEP 28 2010 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 EXTENDS FROM CENTRAL FLORIDA TO THE BAY OF CAMPECHE. THIS COLD FRONT WILL STALL THROUGH TODAY...THEN WILL BE DRAWN EASTWARD AS LOW PRESSURE...POSSIBLE TROPICAL CYCLONE...RAPIDLY MOVES OUT OF THE WESTERN CARIBBEAN ACROSS WESTERN CUBA AND FLORIDA STRAITS WED...THEN INTO THE SW N ATLC WED NIGHT. NLY WINDS W OF THE FRONT WILL INCREASE SOME...ESPECIALLY OVER THE SW WATERS TODAY AND TONIGHT. AS THE LOW MOVES E OF FL ON WED NIGHT THE PRESSURE GRADIENT WILL BEGIN TO RELAX OVER THE NW WATERS WITH CONDITIONS SPREADING SE TO ALL WATERS FRI. THERE STILL REMAINS SOME UNCERTAINTY IN DEVELOPMENT...STRENGTH AND TRACK OF THE CARIBBEAN LOW WHICH WILL DETERMINE THE STRENGTH AND DURATION OF NORTHERLY FLOW OVER GULF WATERS. CARIBBEAN SEA... A LARGE CLUSTER OF THUNDERSTORMS IS AFFECTING THE WESTERN CARIBBEAN ASSOCIATED WITH A LARGE AND BROAD 1004 MB LOW PRESSURE SYSTEM CENTERED NEAR 19N85W. THIS LOW IS FORECAST TO MOVE N OR NNE THROUGH TONIGHT...POSSIBLY AS A TROPICAL CYCLONE...CROSSING WESTERN CUBA EARLY WED. A SECOND LOW OR LOWS ARE POSSIBLE OVER THE WESTERN CARIBBEAN LATER THIS WEEK. ALTHOUGH THE TIMING...POSITION...STRENGTH AND TRACK OF THESE LOWS IS VERY UNCERTAIN...WINDS AND SEAS AND CONVECTION ARE ALL EXPECTED TO BE ENHANCED OVER MUCH OF THE WESTERN CARIBBEAN THROUGH THE PERIOD. OTHERWISE MODERATE EASTERLY TRADE WINDS ARE EXPECTED. SW N ATLC AND TROPICAL N ATLC... A COLD FRONT WILL MOVE OFF THE GA COAST BY MORNING...BUT WILL IMMEDIATELY STALL IN THE FAR NW PART OF THE SW N ATLC WATERS. LOW PRES...POSSIBLY A TROPICAL CYCLONE...WILL MOVE OUT OF THE WESTERN CARIBBEAN...ACROSS CUBA WEDNESDAY...AND RAPIDLY NNE ACROSS THE FAR WESTERN PART OF THE SW N ATLC. EXPECT WINDS AND SEAS TO INCREASE THROUGHOUT AREA STARTING TODAY...BUT THERE REMAINS PLENTY OF UNCERTAINTY ON TIMING...STRENGTH AND TRACK OF THIS LOW AND A SECOND LOW THAT MAY FOLLOW LATE THIS WEEK. WARNINGS... SW N ATLC... .NONE. CARIBBEAN... .NONE. TROPICAL N ATLC... .NONE. GULF OF MEXICO... .NONE. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ FORECASTER AL