000 AGXX40 KNHC 121714 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 114 PM EDT Wed Apr 12 2017 Marine Weather Discussion for the Gulf of Mexico, Caribbean Sea, and Tropical North Atlantic from 07N to 19N between 55W and 64W and the Southwest North Atlantic including the Bahamas. ...GULF OF MEXICO... High pressure prevails over the northern waters. Latest satellite derived winds and seas along with ship, buoy, and CMAN data depict gentle to moderate winds prevail over the forecast waters. Seas are in the 2-3 ft range over the northeast Gulf, 3-4 ft over the northwest Gulf, and 4-6 ft over the southern Gulf. High pressure will continue to prevail over the northern Gulf waters through the weekend. A trough will develop each evening over the Yucatan peninsula. This trough will shift westward into the southwest Gulf each night where it will dissipate each morning. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... Latest satellite derived winds and seas along with ship, buoy, and CMAN data depict moderate to fresh winds over the central Caribbean and gentle to moderate winds over the remainder of the Caribbean as well as the tropical north Atlantic forecast waters. Seas are in the 4-6 ft range over the south central Caribbean, 3-5 ft over the north central Caribbean, 4-5 ft over the western Caribbean, 2-3 ft over the eastern Caribbean, and 5-6 ft over the tropical north Atlantic waters. Winds will pulse to strong over the south central Caribbean as well as the lee of Cuba and windward passage the next couple of night. Low pressure north of the area will drift westward and loosen the pressure gradient over the forecast waters. This will limit the strength of nocturnal pulsing in the lee of Cuba and the windward passage by Friday. The low pressure area will shift northeast with high pressure building north of the area in its wake this weekend. This will tighten the pressure gradient over the forecast waters and increase winds across the Caribbean this weekend. ...SW N ATLANTIC INCLUDING THE BAHAMAS... Low pressure and associated trough prevail over the eastern waters while high pressure prevails over the western waters. Latest satellite derived winds and seas along with ship, buoy, and CMAN data depict force winds within 180 nm n of the low. This area is surrounded by fresh to near gale conditions over the remainder of the northeast waters north of the low. Gentle to moderate winds prevail over much of the remaining waters. Seas are in the 10-13 ft range in the area of gale force winds, 8-11 ft over the remainder of the northeast waters, 4-7 ft over the southeast waters, 4-6 ft over the northwest waters, and 1-3 ft west of the Bahamas. The area of low pressure will drift westward the next couple of days before lifting rapidly northeast of the area on Friday. This will drag a cold front across the forecast waters with high pressure building in its wake this weekend. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... .AMZ115...ATLANTIC FROM 27N TO 31N BETWEEN 65W AND 70W... Gale Warning today into tonight. $$ *For detailed zone descriptions, please visit: http://www.nhc.noaa.gov/abouttafbprod.shtml#OWF Note: gridded marine forecasts are available in the National Digital Forecast Database (NDFD) at: http://www.nhc.noaa.gov/marine/grids.php For additional information, please visit: http://www.nhc.noaa.gov/marine $$ .Forecaster AL. National Hurricane Center.