000 AGXX40 KNHC 150539 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 145 AM EDT SAT SEP 15 2012 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... LATEST SCATTEROMETER...SHIP...AND BUOY OBSERVATIONS DEPICT LIGHT TO MODERATE WINDS WITH SEAS 2 TO 4 FT PREVAIL ACROSS THE MAJORITY OF THE GULF WATERS. LATEST MODEL GUIDANCE IN AGREEMENT THAT AN UPPER LEVEL TROUGH APPROACHING FROM THE WEST WILL HELP INDUCE A SURFACE TROUGH...POSSIBLY WITH A SURFACE LOW DEVELOPING ALONG THE TROUGH OVER THE WESTERN GULF WATERS BY SUN NIGHT. THE TROUGH IS EXPECTED TO TRACK INTO THE SOUTHEASTERN UNITED STATES ON MONDAY...WITH A COLD FRONT MOVING INTO THE NW GULF WATERS ON TUE. THE COLD FRONT IS EXPECTED TO STALL OVER THE E GULF ON WED. SOUTHWEST NORTH ATLC S OF 31N W OF 55W... A SURFACE TROUGH EXTENDS FROM 31N67W TO THE CENTRAL BAHAMAS. RECENT SCATTEROMETER...SHIP...AND BUOY DATA INDICATE LIGHT TO MODERATE WINDS PREVAIL ACROSS MUCH OF THE AREA. SEAS ARE GENERALLY 3 TO 5 FT OVER THE WESTERN HALF OF THE FORECAST AREA...EXCEPT 2 FT OR LESS W OF THE BAHAMAS...AND 5 TO 8 FT OVER THE EASTERN PART OF THE AREA. SWELLS ASSOCIATED WITH HURRICANE NADINE WILL MOVE THROUGH THE NE PART OF THE FORECAST AREA THROUGH TODAY BEFORE SUBSIDING. THE SURFACE TROUGH IS FORECAST TO TRACK EAST OF THE AREA BY SUN NIGHT AS HIGH PRESSURE BUILDS ACROSS THE AREA. CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W... LATEST SCATTEROMETER...SHIP...AND BUOY OBSERVATIONS DEPICT LIGHT TO MODERATE TRADE WINDS PREVAIL ACROSS THE CARIBBEAN WATERS AND THE TROPICAL N ATLC WATERS...EXCEPT FOR MODERATE TO FRESH WINDS ACROSS THE SOUTHERN CENTRAL CARIBBEAN WATERS. A TROPICAL WAVE WILL MOVE INTO THE TROPICAL N ATLC WATERS SUN NIGHT...WILL TRACK INTO THE EASTERN CARIBBEAN WATERS MON...AND ACROSS THE CENTRAL CARIBBEAN WATERS TUE AND WED. NOTE...GRIDDED MARINE FORECAST IS AVAILABLE AT WWW.NHC.NOAA.GOV/TAFB/GRIDDED_MARINE GULF OF MEXICO... .NONE. CARIBBEAN SEA AND TROPICAL N ATLC... .NONE. SW N ATLANTIC... .NONE. FOR ADDITIONAL INFORMATION PLEASE VISIT WWW.HURRICANES.GOV/MARINE $$ FORECASTER AL