000 AGXX40 KNHC 160814 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 414 AM EDT Mon Apr 16 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... Fresh to strong NW winds persist over the eastern Gulf following a late season cold front currently sweeping east of the basin. Buoy and scatterometer data show fresh to strong W to NW winds over the northeast Gulf, with seas to 11 ft. 1022 mb high pressure is building over the western Gulf, allowing seas to diminish to light to moderate. However northerly swell to 11 ft lingers, mainly over the southwest Gulf. Winds and seas will diminish from west to east across the Gulf through Mon as high pressure continues to build over the northern Gulf. The high pressure will shift westward across the northern Gulf through mid week. Southerly return flow will increase over the northwest Gulf Tue into Wed as the ridge shifts east. A weaker cold front will drift into the northern Gulf Thu then stall and dissipate through Fri. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... A cold front reaching from western Cuba to Belize will weaken as it moves southeast, eventually stalling then dissipating from eastern Cuba across the Caymans to central Honduras by mid week. A line of showers and thunderstorms is ahead of the front, with active convection noted off the coast of Honduras. No significant convection is noted elsewhere. Fresh to strong northerly winds will follow the front along the Yucatan and Belize coastlines through today. Strong high pressure in the central Atlc along with ridging into the northern and eastern Caribbean will continue to support fresh to strong E to NE winds along the coast of Colombia and the Gulf of Venezuela through the remainder of the week. ...SW N ATLANTIC INCLUDING THE BAHAMAS... A cold front has moved off the coast of Florida, currently reaching from 31N78W to Miami then on to near Havana Cuba. Strong to near gale force winds accompany the front, and scattered thunderstorms are ahead of the front. Gales are likely ongoing north of 30N both ahead of and following the frontal boundary. A couple of ships reported winds to gale and storm force, but in thunderstorms. Buoy 41010 near 29N78.5W has stayed just below gale, helping identify the southern boundary of gale force winds. Seas north of the Bahamas and off northeast Florida are likely 10 to 15 ft currently. Elsewhere, an earlier scatterometer satellite pass along with a concurrent altimeter satellite pass showed strong E winds and seas to 8 ft off the north coast of Haiti and near the approaches to the Windward Passage. These winds will diminish later this morning as the supporting ridge northeast of the region shift farther east ahead of the advancing front. Over the remainder of the area, moderate to fresh E to SE winds persist, with 5 to 7 ft seas north of 22N and 6 to 8 ft seas south of 22N in part due to NE and E swell. Winds and seas will diminish through Tue north of 25N as the front shifts east and reaches from Bermuda to eastern Cuba by late Tue, before lifting north to 25N and dissipating through Thu. A weak front will sag southward into the waters off northeast Florida Fri before stalling and dissipating. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... .AMZ111...ATLANTIC FROM 29N TO 31N W OF 77W... Gale Warning early today. .AMZ113...ATLANTIC FROM 29N TO 31N BETWEEN 70W AND 77W... Gale Warning early today. $$ *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 Christensen. National Hurricane Center.