597 AGXX40 KNHC 181956 AAA MIMATS Marine Weather Discussion...Updated NWS National Hurricane Center Miami FL 256 PM EST Mon Jan 18 2021 Updated Caribbean Sea and Tropical N Atlantic section 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 northwest Gulf will shift eastward across the northern Gulf through Fri. A cold front will move into the northern Gulf Sat and become stationary into Sat night. Fresh to strong southerly return flow will set up over the NW Gulf tonight into Tue between the high pressure and lower pressure farther west over northeast Mexico. These winds will diminish some by Wed. A trough will form off the west coast of the Yucatan Peninsula each night through Wed night, supporting brief pulses of fresh to strong winds. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... High pressure that will begin to build over the western Atlantic today will bring increasing winds and building seas over the southeast and south-central Caribbean, with winds pulsing to gale force off the coast of Colombia mainly at night through Wed. Fresh to strong northeast winds are also expected in the lee of eastern Cuba tonight through Wed night, diminishing to mainly fresh speeds Thu and to gentle to moderate speeds Fri through Sat night. ...SW N ATLANTIC INCLUDING THE BAHAMAS... A cold front extending from 31N69W to the central Bahamas will become stationary from near 26N65W to 22N71W and dissipating to eastern Cuba by early Tue. The boundary will gradually dissipate through early Thu. Another cold front will move southward into waters between northeastern Florida and Bermuda by Wed night. The main portion of this front will lift to the northeast of the area Thu, leaving a trailing stationary segment to dissipate along 27N by late Thu. This front will be followed by yet another cold front that will move southward across the waters between Bermuda and NE Florida late Fri, and reach from near 31N60W to near the NW Bahamas by late Sat. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... .AMZ031...CARIBBEAN FROM 11N TO 15N BETWEEN 72W AND 80W INCLUDING COLOMBIA BASIN... Gale Warning tonight. Gale Warning Tue night. GALE CONDITIONS POSSIBLE Wed night. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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.