000 AGXX40 KNHC 230753 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 253 AM EST Sat Nov 23 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 cold front in the NW Gulf from the Louisiana coast near 30N92W to near Tampico, Mexico will extend from near Sarasota, Florida to the central Gulf near 23.5N90W to the SW Gulf near 21N96W by early Sun, stalling and weakening from near the N coast of Cuba to the Yucatan Channel to the Yucatan Peninsula Mon. High pressure will build in the wake of the front from W to E, shifting NE of the basin by early Tue. The next cold front is expected to move into the NW Gulf by early Wed, weakening and stalling in the northern Gulf by Wed night. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... A shearline extends across the Caribbean from Dominica to N of Aruba near 14N70W to 15N76W with scattered showers and isolated tstms. Moderate trades will prevail across the basin through the weekend, except to strong S of the Dominican Republic this morning. Winds will increase to moderate to fresh early next week, then to fresh to strong in the S central and W central portions Tue night through Wed night as the pressure gradient tightens. ...SW N ATLANTIC INCLUDING THE BAHAMAS... Tropical Storm Sebastien near 27.0N 52.2W 998 mb at 10 PM EST moving NE at 13 kt. Maximum sustained winds 55 kt gusts 65 kt. Sebastien will continue to accelerate northeastward away from the forecast waters today. A cold front is W of Sebastien extending from 22N56W to near Dominica. High pressure in the wake of the front will dominate the forecast waters today, then shift eastward tonight. The next cold front will cross the region Sun through Mon, weakening from near Bermuda to the central Bahamas and N coast of Cuba Mon night through Tue. High pressure will build in from the W over the region by mid week. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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 Lewitsky. National Hurricane Center.