205 AGXX40 KNHC 122010 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 410 PM EDT Wed Sep 12 2018 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... A surface trough extending from the central to the SW Gulf, with embedded low pres near 23N91W. Latest surface observations indicate fresh to strong winds across the central gulf around the trough, with gentle to moderate winds elsewhere. Seas are in the 6-8 ft range in the area of strongest winds, with seas in the 2-4 ft prevailing elsewhere. The low pres center will shift NW the next couple of days with the possibility of developing into a tropical cyclone over the NW gulf later this week. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... Latest surface observations indicate moderate to fresh winds over the south central Caribbean with gentle to moderate winds prevailing over the remainder of the Caribbean. Seas are in the 4-6 ft range over the south central Caribbean and 2-4 ft elsewhere. Winds ans seas have started to increase over the tropical N Atlc forecast zones as Tropical Storm Isaac moves closer to the area. At 11 AM EDT, Isaac was near 15.0N 54.7W 1000 mb, moving W at 15 kt. Maximum sustained winds 50 kt gusts 60 kt. Isaac will move to 15.1N 56.7W this evening, 15.3N 59.4W Thu morning, 15.3N 62.6W Thu evening, 15.4N 65.6W Fri morning, and 15.5N 71.0W Sat morning. ...SW N ATLANTIC INCLUDING THE BAHAMAS... Hurricane Florence is moving across the forecast waters. At 11 AM EDT, Florence was centered near 29.8N 71.3W 943 mb, moving NW at 13 kt. Maximum sustained winds 115 kt gusts 140 kt. Florence will move north of the area to 31.1N 73.1W this evening and reach 32.6N 75.1W Thu morning, Outside of the path of Florence, large swell generated by the hurricane will affect the waters around the Bahamas and Florida. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... .AMZ023...CARIBBEAN N OF 15N BETWEEN 64W AND 72W... Tropical Storm Warning Thu night. .AMZ025...OFFSHORE WATERS LEEWARD ISLANDS... Tropical Storm Warning tonight into Thu night. .AMZ027...TROPICAL N ATLANTIC FROM 15N TO 19N BETWEEN 55W AND 60W... Tropical Storm Warning today into Thu. .AMZ033...CARIBBEAN S OF 15N BETWEEN 64W AND 72W INCLUDING VENEZUELA BASIN... Tropical Storm Warning Thu night. .AMZ035...OFFSHORE WATERS WINDWARD ISLANDS INCLUDING TRINIDAD AND TOBAGO... Tropical Storm Warning Thu into Thu night. .AMZ037...TROPICAL N ATLANTIC FROM 07N TO 15N BETWEEN 55W AND 65W... Tropical Storm Warning today into Thu. .SW N ATLANTIC INCLUDING THE BAHAMAS... .AMZ113...ATLANTIC FROM 27N TO 31N BETWEEN 70W AND 77W... Hurricane Warning today into tonight. Tropical Storm Warning Thu. .AMZ115...ATLANTIC FROM 27N TO 31N BETWEEN 65W AND 70W... Tropical Storm Warning today. $$ *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.