000 AGXX40 KNHC 210555 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 200 AM EDT SUN OCT 21 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... DISSIPATING COLD FRONT EXTENDS FROM THE STRAITS OF FLORIDA TO 23N90W. THE FRONT WILL DISSIPATE LATER TODAY. HIGH PRES RIDGE BUILDING BEHIND THE FRONT WITH SLY RETURN FLOW INCREASING TO 15-20 KT ACROSS THE NW GULF TODAY AND MON. THE HIGH MOVES E AND THE PRES GRADIENT WEAKENS OVER THE NW GULF TUE AND WINDS DECREASE TO 10-15 KT. HOWEVER AS THE HIGH MOVES E THE WINDS PICK UP TO 15-20 KT WITH SEAS TO 6 FT ACROSS THE SE GULF AND THROUGH THE STRAITS OF FLORIDA TUE AND WED. LOW PRES IN THE CARIBBEAN IS FORECAST TO MOVE N AND COULD POSSIBLY DEVELOP INTO A TROPICAL CYCLONE. AS THE LOW MOVES N THE GRADIENT TIGHTENS EVEN FURTHER AND WINDS INCREASE TO 20-25 KT THROUGH THE STRAITS OF FLORIDA. SW N ATLC S OF 31N W OF 65W... COLD FRONT FROM 31N72W TO STRAITS OF FLORIDA. THE FRONT WILL EXTEND FROM 31N67W TO CENTRAL BAHAMAS THIS EVENING THEN WEAKEN AND MOVE E OF THE AREA MON. HIGH PRES BUILDS BEHIND THE FRONT MON AND TUE. WINDS REMAIN IN THE 10-15 KT RANGE TODAY..THEN NE WINDS INCREASE TO 15-20 KT ACROSS THE NW PORTION OF THE AREA MON AS HIGH PRES MOVES INTO THE EASTERN U.S. ELY WINDS 15-20 KT ACROSS MUCH OF THE AREA TUE AND WED AS THE PRES GRADIENT TIGHTENS BETWEEN HIGH PRES TO THE N OF THE AREA AND LOWER PRES IN THE CARIBBEAN. THE LOW COULD POSSIBLY DEVELOP INTO A TROPICAL CYCLONE. THE LOW MOVES N AND WINDS INCREASE TO 20-25 KT THU. CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W... LOW PRES NEAR 15N74W WILL MOVE TO S OF JAMAICA TONIGHT TO NEAR 15N78W MON THEN START TO LIFT N TOWARD JAMAICA AND EASTERN CUBA TUE AND WED. THE LOW COULD POSSIBLY DEVELOP INTO A TROPICAL CYCLONE. WINDS ARE FORECAST TO INCREASE TO 20-25 KT AS THE LOW STRENGTHENS THROUGH THE MIDDLE OF THE WEEK. 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 DGS