814 AGXX40 KNHC 170640 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 240 AM EDT Tue Jul 17 2018 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... The northern Gulf will have enhanced convective activity the next several days due to the interaction between weak troughing at the surface and diffluent flow aloft. A surface trough will move off the Yucatan Peninsula each evening, accompanied by fresh nocturnal winds. Weak high pressure will prevail across the remainder of the basin through the weekend. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... High pressure in the central Atlantic will support strong to near gale-force winds across the south-central Caribbean for the next several days. Highest winds will be near the coast of Colombia, where gale force winds are expected on Wed night as a tropical wave passes west of the area. Composite model guidance has backed off a bit on the likelihood for gale- force winds tonight, but still show a strong signal for a brief period of gales between 03Z-09Z late Wed night and early Thu morning. ...SW N ATLANTIC INCLUDING THE BAHAMAS... Strong high pressure will build westward in the central Atlantic through Wed night as a trough along 60W lifts north of the area. Broad ridging and largely benign marine conditions will prevail across most of the region through the weekend. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... .AMZ031...CARIBBEAN FROM 11N TO 15N BETWEEN 72W AND 80W INCLUDING COLOMBIA BASIN... Gale Warning Wed night. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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 Mundell. National Hurricane Center.