000 AGXX40 KNHC 121854 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 254 PM EDT Mon Jun 12 2017 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 winds continue to be reported over the north central Gulf associated with an elongated area of showers and thunderstorms N of 28N that extends from the Florida Big Bend to Mississippi adjacent waters. Seas are up to 7 ft in this area. Scattered showers are also in the SE basin being supported by an upper trough extending from Kentucky SW to a base over the eastern Bay of Campeche. The trough aloft is forecast to stall in the E Gulf through Friday, thus supporting periods of showers in this region. Fresh to locally strong winds are in the eastern Bay of Campeche associated with a surface trough that extends S of 23N near 94.5W. These winds will continue through late Tuesday night being enhanced by the pressure gradient between weak ridging in the E Gulf and T.D. Three-E that will make landfall in western Oaxaca later today. Gentle to moderate winds will dominate elsewhere through Fri with 3 to 5 ft seas. Strong winds will pulse off the northwest coast of the Yucatan peninsula in the late evenings through Wednesday. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... A weak tropical wave in the SW basin will drift slowly west through Wednesday. The full array of model guidance continue to suggest the development of a surface low over the southwest Caribbean near 10N80W tonight into Tue. The low is forecast to drift NW reaching over southern Nicaragua late this week. This low will merge into a broad area of low pressure that extends across most of Central America and the eastern Pacific, where multiple surface lows are likely to develop this week. Expect strong east winds across the Gulf of Honduras tonight through Wednesday as the wave moves across Central America. Marine interests should prepare for large rainfall accumulations throughout Central America, and southern Mexico. Fresh to strong winds are in the south-central basin between the monsoon low pressure and high pressure over the Atlantic extending a ridge across the northern Caribbean. A second tropical wave over the eastern Caribbean will cross the central Caribbean Tue and the southwest basin through Thu where it will merge with a center of low pressure. Otherwise, Atlc ridging north of the area will maintain fresh to strong trades through late today, with the strongest easterly flow along the coast of Colombia. The pressure gradient will relax some during the middle of the week. ...SW N ATLANTIC INCLUDING THE BAHAMAS... A weakening trough from 28N50W to 21N57W will dissipate late today, thus allowing the subtropical ridge to build westward Tue and Wed and persist through late week. This will maintain gentle to moderate winds and slight seas north of 22N, and moderate to fresh trade winds south of 22N, pulsing to strong at night north of Hispaniola and near the approaches to the Windward Passage tonight. No major changes otherwise. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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.