000 AGXX40 KNHC 120817 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 417 AM EDT Tue Jun 12 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 each afternoon, and drift westward across the southwest Gulf during the overnight hours accompanied by a fresh east to southeast wind shift with the trough dissipating along 96W during the late mornings. Guidance is suggesting a fresh to strong wind shift will accompany the trough beginning on Wed evening. The pressure gradient will tighten during the middle of the week in association with a tropical wave moving through the Yucatan Channel on Wed. A surface low will develop along the wave axis on Wed night, and move into the Bay of Campeche on Thu, then continue across the southwest gulf waters late in the week. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... A tropical wave will move west across the western Caribbean today and on Wed with a surface low developing along the wave axis on Wed. A second tropical wave will enter the east Caribbean today, and pass through the central Caribbean on Wed and Thu. A third tropical wave will pass west through the tropical waters east of windwards on Wed, and enter the east Caribbean on Thu. Strong trades across the south-central and southwest Caribbean will spread north across the central Caribbean on Wed and further west late in the week. Locally strong trades will continue across the tropical waters east of the Windwards through early Wed. ...SW N ATLANTIC INCLUDING THE BAHAMAS... An east to west ridge will meander between 27N and 29N through Thu, then shift south on Fri and reach along 24N on Sat allowing a weak cold front to move into the northern waters. Fresh to locally strong easterly winds are forecast along the northern coast of Hispaniola during the late afternoons and evenings through Wed, with moderate easterly flow forecast elsewhere south of the ridge. Gentle to moderate southerly flow is expected north of the ridge, becoming a moderate northeast breeze to the north of the cold front during the upcoming weekend. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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.