000 AGXX40 KNHC 290737 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 337 AM EDT Sat Apr 29 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... Recent scatterometer data and buoy observations indicate fresh to strong southeast flow from the Straits of Florida to the central Gulf to the northwest Gulf. Seas are not fully developed as yet, with buoys and altimeter data showing mainly 5 to 8 ft, but will build to 12 ft over much of the northwest and north central Gulf through tonight given the long duration of strong southeast winds. These stronger winds result from a tighter gradient between ridging in the western Atlantic and low pressure developing over west Texas. The low pressure will move into the central Plains through tonight, with a trailing cold front moving off the Texas coast early Sunday. Strong to near gale force winds will follow the front along the coast of Mexico through Sunday, likely reaching minimal gale force for brief periods off Tamaulipas and Veracruz late Sunday with seas to 10 ft. The low pressure will lift farther north of the area through Sunday, allowing winds and seas to diminish through early Monday. The front will stall from the western Panhandle to the southwest Gulf early Monday and lift through late Monday. High pressure will build across the northern Gulf allowing moderate to fresh southerly to return across the Gulf into mid week. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... Ridging from the western Atlantic through Cuba is supporting overnight pulses of fresh to strong southeast winds near the Gulf of Honduras, and easterly trade winds off Colombia and northwest Venezuela and a smaller area south of Cabo Beata in southern Dominican Republic. These pulses will persist tonight and Sunday night, along with fresh trade winds and seas 6 to 8 ft over the central Caribbean through late Sunday as high pressure builds north of the area. Similarly, fresh northeast winds are likely into the Windward Passage by late Sunday. Winds and seas diminish from Monday through the middle of next week as the high pressure weakens and shifts east. ...SW N ATLANTIC INCLUDING THE BAHAMAS... Ridging extends along roughly 30N, supporting fresh to strong southeast flow from the north coast of Hispaniola through the southern Bahamas to the Straits of Florida. The pattern will persist through late Sunday, with fresh to strong winds likely near the approaches to the Windward passage. Generally gentle to moderate east to southeast winds will persist elsewhere, with 4 to 6 ft seas. Southeast to south return flow will increase off the coast of northeast Florida through late Monday as a weakening cold front approaches the area from the eastern Gulf of Mexico. The front will stall along the Florida coast by early Tuesday then become diffuse. Winds and seas diminish late Tuesday through Wednesday as weak high pressure builds west along roughly 28N. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... .GMZ017...W CENTRAL GULF FROM 22N TO 26N W OF 94W... Gale Warning Sun. .GMZ023...SW GULF S OF 22N W OF 94W... Gale Warning Sun into Sun night. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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 Christensen. National Hurricane Center.