000 AGXX40 KNHC 190831 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 431 AM EDT Mon Apr 19 2021 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 nearly stationary front is noted from near Keaton Beach, Florida, to 25N92W, to just south of Veracruz, Mexico. Fresh to strong winds occurring west of this boundary along the Mexican coast will diminish overnight. This front will remain nearly stationary into mid week, before reinforcing cool and dry air pushes the front into the far southeast Gulf from mid to late week. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... An ashfall advisory is in effect for La Soufriere Volcano on the island of St. Vincent near 13.3N 61.2W. A new eruption occured earlier today. Mariners transiting the nearby waters should exercise caution, and are encouraged to report volcanic ash to the National Hurricane Center by calling 305-229-4424. A ridge extends north of the basin across the Atlantic through the central Bahamas. The ridge will shift east ahead of a weak front moving through the Gulf allowing trade winds to increase over mainly the south central Caribbean through mid week. Looking ahead, the trade winds will diminish by late week as the high pressure shifts eastward, although fresh to strong winds will persist off Colombia. ...SW N ATLANTIC INCLUDING THE BAHAMAS... A weak frontal boundary will remain nearly stationary off the coast of northeast Florida through the early part of the week, as a ridge extends westward from the central Atlantic through the central Bahamas. Looking ahead, as the ridge shifts east by Wed, a slightly stronger frontal boundary will move off the southeast U.S. coast by Thu. This front will reach from near Bermuda to the Straits of Florida by Thu night, then start to stall along 25N through Fri night as high pressure builds between northeast Florida and Bermuda. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... .AMZ035...OFFSHORE WATERS WINDWARD ISLANDS INCLUDING TRINIDAD AND TOBAGO... Ashfall Advisory early today into today. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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 KONARIK. National Hurricane Center.