000 AGXX40 KNHC 101711 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 111 PM EDT Sat Jun 10 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... The remnants of a front are now analyzed as an inverted surface trough that is drifting NW across the NE and SE gulf waters. The trough is accompanied by SCT RW/ISOL TS which will be carried in the weather grids today into early tonight. Strengthening high pressure tonight into Sun will result in a band of fresh E to SE winds extending SE from the NW gulf waters to near the N approach to the Yucatan Basin beginning tonight, and continuing through late Sun when fresh to locally strong SE flow, and 4 to 7 ft seas are forecast. The pressure gradient will begin to relax late Mon with moderate to fresh return flow and 3 to 6 ft seas expected on Tue. Gentle to moderate return flow and 2 to 3 ft seas forecast on Wed. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... A trough currently analyzed over the far SW Caribbean will move inland Costa Rica tonight accompanied by SCT TS. A tropical wave s of 16N along 77W is slowing and is expected to stall over the far SW Caribbean on Sun night into Mon. Guidance is suggesting a surface low will develop along the wave near 11N83W on Mon night into Tue, and drift generally nw thereafter. A tropical wave will pass through the Windward Islands today, reach the central Caribbean late Mon, and reach the SW Caribbean during mid week merging into a broad area of low previously just described. This wave is currently passing under an area of upper diffluence associated with an upper cyclone located just N of Puerto Rico. This interaction is producing a large area of SCT RW/ISOL TS across the SE Caribbean. The upper cyclone is shifting W with time, with its upper support staying in phase with the lower level tropical wave maintaining the convection through Sun. Atlc ridging N of the area will maintain fresh to strong trades across the entire discussion area with the strongest flow along the NW coast of Colombia, and extending W to near 13N79W mainly during the early daylight hours. Strong nocturnal winds are forecast across the Gulf of Honduras for the next few days. ...SW N ATLANTIC INCLUDING THE BAHAMAS... A frontal trough extends SW from 31N72W to Port Canaveral Fl accompanied by SCT RW/ISOL TS, which is depicted in the weather grids today. The trough will continue to weaken and drift W tonight and Sun, with the weak remnants moving inland NE Fl early Mon. An E to W ridge currently from 29N56W to Port of Miami will shift N to a position from 31N59W to 29N77W on Sun, and extend from E to W along 30.5N on Tue night into Wed. Fresh trades are forecast S of 22N through early Tue, except becoming locally strong along the N coast of Hispaniola and approach to the Windward Passage. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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 Nelson. National Hurricane Center.