000 AGXX40 KNHC 231800 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 100 PM 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 29N90W 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 from Martinique Passage to the central Caribbean near 13N70W to 15N77W with scattered showers and isolated tstms. Moderate trades will prevail across the basin through the weekend. Winds will increase to moderate to fresh on Mon, 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 30.4N 47.7W 997 mb at 10 AM EST moving NE at 23 kt. Maximum sustained winds 55 kt gusts 65 kt. Sebastien will move to 32.1N 44.5W this evening, 34.4N 40.0W Sun morning, 36.8N 34.0W Sun evening, become extratropical and move to 39.3N 26.7W Mon morning, and dissipate Tue morning. A stationary front is W of Sebastien extending from 31N49W to near 28N52W. 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 Ramos. National Hurricane Center.