000 AGXX40 KNHC 130509 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 109 AM EDT Wed Jun 13 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... A surface trough will develop along the Yucatan Peninsula late this afternoon and again on Thu afternoon, and drift westward across the southwest Gulf waters during the overnight hours accompanied by a strong east to southeast wind shift with the trough dissipating along 96W during the late mornings. The pressure gradient is tightening in association with a tropical wave moving through the Yucatan Channel today. The wave will pass through the southwest gulf waters on Thu and Fri accompanied by a weak low pressure center along the wave axis. A fresh southeast breeze is expected across the central waters through Sat with locally strong conditions developing on Sat night into Sun. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... A tropical wave will move west across the western Caribbean through tonight with a surface low developing along the wave axis. A second tropical wave across the east Caribbean will pass through the central Caribbean on Thu and Fri. A third tropical wave will pass west through the tropical waters east of windwards today, and pass through the east Caribbean on Thu and Fri. Strong trades currently across the south-central and southwest Caribbean will spread north across the central Caribbean today through Thu, while fresh to locally strong southeast pulses will continue across the northwest Caribbean. Locally strong trades will continue across the tropical waters east of the Windwards today. ...SW N ATLANTIC INCLUDING THE BAHAMAS... An east to west ridge will meander between 27N and 29N through Thu, then shift south along 25N on Fri, along 24N on Sat and along 23n on Sun allowing a weak cold front to pass east through the waters north of 26N. Fresh to locally strong easterly winds are forecast along the northern coast of Hispaniola during the late afternoons and evenings through Thu, with moderate easterly flow forecast elsewhere south of the ridge. Gentle to moderate southerly flow is expected north of the ridge, with a brief moderate northeast breeze expected to the north of the cold front on Sat. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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.