000 AGXX40 KNHC 211651 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 1151 AM EST Thu Nov 21 2019 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 ridge will prevail across the area through Fri, with fresh SE return flow persisting over the western Gulf. A cold front will move off the Texas coast and into the NW Gulf Fri night, cross the northern and central waters this weekend, then weaken and stall over the southern Gulf Sun night. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... A cold front extending from 20N70W across Hispaniola to 19N74W to south of Cuba near 19N84W will continue moving over the northern Caribbean through tonight, then stall and weaken on Fri. Fresh NE winds will prevail across much of the western Caribbean through Fri, with the strongest winds expected through the Windward and Mona passages as high pressure builds behind the cold front. Easterly trades will freshen across the south-central Caribbean early next week. ...SW N ATLANTIC INCLUDING THE BAHAMAS... Tropical Storm Sebastien is centered near 23.5N 60.5W 999 mb at 10 AM EST moving NNE at 7 kt. Maximum sustained winds 50 kt gusts 60 kt. Sebastien will strengthen to a hurricane while accelerating northeastward away from the forecast waters tonight. A cold front extending from 31N59W to 25N63W to 20N70W will continue moving eastward and steer Sebastien into the central Atlantic. High pressure will build behind the cold front across the northern waters through Sat, then shift eastward Sat night. Another cold front will cross the region Sun through Mon. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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 Reinhart. National Hurricane Center.