000 AGXX40 KNHC 071857 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 157 PM EST Wed Nov 7 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 ridge extending from the Atlantic to the central Gulf will support gentle to moderate SE to S winds and seas generally under 4 ft over the Gulf waters through early Fri morning. A strong cold front will reach the coast of Texas Fri morning, and move across the NW Gulf through Fri afternoon. Fresh to strong northerly winds and building seas are expected in the wake of the front. It is forecast to reach from northern Florida to near Tampico, Mexico by Fri night, and from near Sarasota, Florida to 25N90W and to near Veracruz early Sat morning, then become stationary from near Fort Myers to near 24N90W to the Bay of Campeche by Sat evening. Northerly winds behind the front are expected to reach minimal gale force late Fri through Sat over the NW and west-central Gulf. Scattered showers and thunderstorms are likely to precede the front. Beyond this forecast period, going into early next week, the models are advertising a much stronger cold front to sweep across the area followed by an expansive area of strong high pressure. Stay tuned to future forecasts that will detail this event, along with any possible marine warnings that may be required. Currently, marine guidance suggests northerly winds of 30 to 40 kt, and building seas in the 10 to 15 ft range. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... High pressure over the central Atlantic will weaken as it shifts southeastward during the next few days. As a result, generally light to moderate trades are expected over the area during the next several days. Seas of 3 to 5 ft are expected over the east and central Caribbean, mainly S of 18N and E of 82W, with seas of 2-3 ft elsewhere. By Sun night, winds and seas will slightly increase across the south-central Caribbean, in the Windward Passage, and just south of Hispaniola. A very moist and unstable atmosphere will continue to support scattered showers and isolated thunderstorms over the eastern Caribbean, including the Lesser Antilles through Thu. NE long-period swell over the tropical Atlantic waters will be replaced by a new set of NE swell Fri night through Sun per latest wave model guidances. ...SW N ATLANTIC INCLUDING THE BAHAMAS... High pressure ridge extending from Bermuda to central Florida will retreat eastward during the next few days in response to cold fronts that will move off the United States eastern seaboard. The first cold front is now clipping the far NW corner of the forecast area, and will move back north as a warm front late today. The second cold front is expected to quickly move across the Gulf of Mexico and off the E coast Fri night. It will then move across the northwestern waters through Sat before approaching Bermuda and extend to near 31N70W and stationary to near Port Canaveral by late Sat night. Strong continental high pressure in the wake of the front will tighten the gradient over the northwestern waters by late Sat leading to fresh to strong northeast winds and building seas. These conditions will spread eastward to the north-central waters through Sun as the western portion of the front begins to lift some to the north. Otherwise, gentle to moderate winds will continue over the remainder of the forecast waters through Sun night. NE long period swell over the eastern waters will subside through Thu. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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.