000 AGXX40 KNHC 271737 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 137 PM EDT Sun Sep 27 2020 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 strong cold front will enter the NW Gulf by Mon afternoon, then quickly reach the southeastern Gulf waters Wed and the Straits of Florida Wed evening. In the wake of the front, strong northerly winds are expected in the western half of the basin, with gale force winds possible over the far western Gulf and over the southwestern Gulf Tue and Tue night. High pressure behind the front will build southeastward across the area through Fri while weakening. A weak secondary front will drop southward to the northern Gulf early on Fri and reach the far southwestern Gulf by Fri evening. Stronger high pressure will build southward over the Gulf behind this front. The gradient between it and a tropical wave that will be in the western Caribbean Sea is expected to lead to increasing northeast winds over most of the south-central Fri and Fri night. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... Moderate to fresh trades over the central Caribbean will increase to fresh to strong speeds by Wed. Mainly winds at moderate speeds will continue elsewhere, except for gentle winds over the northwestern Caribbean. A tropical wave over the far eastern Caribbean will move across the rest of the eastern Caribbean through Mon evening, then across the central Caribbean Tue through early Wed and across the western Caribbean Thu through Fri night. Scattered to numerous showers and thunderstorms, some with gusty winds, will follow in behind the wave. ...SW N ATLANTIC INCLUDING THE BAHAMAS... Moderate to fresh winds are expected northeast of the Bahamas today. A cold front will reach the southeastern U.S. coast Tue night and move over the northwest part of the area on Wed. The cold front will begin to weaken as it reaches from near 31N74W to South Florida by Wed night and become stationary from 31N73W to the Straits of Florida by late Thu and into Fri. Scattered showers and thunderstorms are expected ahead of the cold front. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... .GMZ017...W CENTRAL GULF FROM 22N TO 26N W OF 94W... GALE CONDITIONS POSSIBLE Mon night into Tue. .GMZ023...SW GULF S OF 22N W OF 94W... GALE CONDITIONS POSSIBLE Tue into Tue night. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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 Aguirre. National Hurricane Center.