000 AGXX40 KNHC 200745 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 245 AM EST Wed Nov 20 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... High pressure over the central Gulf will shift eastward today. Fresh SE return flow will intensify over the NW Gulf tonight and Thu ahead of a cold front moving into Texas. The front will move into the NW Gulf Fri night, followed by fresh northerly winds. The front will weaken and stall along 24N Sun through Mon. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... Tropical Storm Sebastien was located NE of the Virgin Islands near 20.7N 60.6W at 10 PM EST, moving WNW at 8 kt. Fresh NE winds will prevail across most of the western Caribbean through Fri morning, with highest winds expected in the Windward Passage. ...SW N ATLANTIC INCLUDING THE BAHAMAS... Tropical Storm Sebastien was located near 20.7N 60.6W 1004 mb at 10 PM EST, moving WNW at 8 kt. Maximum sustained winds are 40 kt with gusts to 50 kt. Sebastien will move to 21.5N 61.5W this morning, 22.9N 61.5W this evening, 24.4N 59.8W Thu morning, then merge with a cold front and become extratropical by Thu evening. Elsewhere, a cold front will quickly move across the northern waters through tonight, with fresh to strong NW winds developing behind the front. High pressure will build across the northern waters Thu through Sat. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... .AMZ127...ATLANTIC FROM 19N TO 22N BETWEEN 55W AND 65W... Tropical Storm Warning early today into today. $$ *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 Mundell. National Hurricane Center.