000 AGXX40 KNHC 210625 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 225 AM EDT Sun Oct 21 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 weak low pressure system of 1016 mb is located over the NW Gulf near 27N96W. A cold front extends from the Florida Big Bend across SE Louisiana to near 28N94W. A warm front continues from this point to the low center. A trough also extends from the low across the western Gulf to near 18.5N94W. The cold front will sweep across the eastern and central Gulf waters today while weakening across the SE Gulf on Mon. The low will drift N through Mon night, then ENE across the north-central Gulf through Thu night and the NE Gulf by Fri, dragging a new cold front across the SW Gulf. The pressure gradient between the low and high pressure building over the SE of United States will support fresh to strong N-NE winds and building seas over the northern Gulf today. Fresh to strong northerly winds are also expected over the western Gulf behind the cold front. On Mon, fresh to strong winds will persist N of the warm front over the NW Gulf while mainly fresh northerly winds will prevail W of the cold front. Similar marine conditions are expected on Wed. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... Fresh to strong NE winds will pulse in and near the Windward Passage and within 60 nm south of Hispaniola through Tue. Fresh to strong NE winds near the coast of Colombia will diminish to mainly fresh winds this afternoon, and change little through Tue night before diminishing to light to moderate winds Wed through Thu night. Elsewhere, moderate to fresh trades will continue through early Wed, then diminish to the gentle intensity through Thu night. A tropical wave will move across the Tropical N Atlantic through tonight, and reach the far eastern Caribbean Mon while slowing down. It will move across the rest of the eastern Caribbean through Thu, followed by east to southeast gentle to moderate winds. ...SW N ATLANTIC INCLUDING THE BAHAMAS... A strong cold front currently moving off NE Florida will reach from near Bermuda to south Florida tonight, and from 28N65W to the Florida Keys by Mon evening then become stationary. Fresh to strong winds and building seas are expected behind this front through late Mon as strong high pressures slides eastward off the U.S. east coast. The high pressure and front will weaken Tue through early Thu allowing for winds to diminish and seas to subside. On Thu, the pressure gradient is forecast to tighten E of NE Florida between high pressure to the N across the eastern seaboard and a possible low pressure developing N of the NW Bahamas. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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 GR. National Hurricane Center.