000 AGXX40 KNHC 111827 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 227 PM EDT Sun Apr 11 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 weak cold front over the northern Gulf will move eastward, reaching from north Florida to the east-central Gulf by late tonight. It will weaken further to a trough as it reaches the southeastern Gulf Mon and dissipates late Mon. An upper- level trough will help generate scattered showers and thunderstorms over most of the eastern Gulf waters today. Some of this activity may contain frequent lightning and strong gusty winds. ...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. Mariners transiting the waters under the emitted ash should exercise caution. Fresh southeast winds will continue over the northwestern Caribbean through the period, while fresh to strong east to southeast winds continue in the Gulf of Honduras. Winds will pulse to strong speeds over a small area near the coast of Colombia during the afternoons and at night through Wed. Elsewhere, generally moderate to fresh east winds will change little through Thu night. ...SW N ATLANTIC INCLUDING THE BAHAMAS... Fresh to strong southerly winds east of Florida will shift eastward through Mon ahead of a cold front that will move off the southeastern U.S. coast tonight. The front will reach from near 31N75W to east-central Florida early Mon, from near 31N70W to the central Bahamas and to east-central Cuba Mon evening and the southeast waters by late Tue. The front will move east of the forecast waters on Wed as weak high pressure builds in behind it. Another cold front is expected to cross the northwest and north- central waters beginning Tue. Fresh to strong southwest winds are expected to precede this front. Scattered to numerous showers and thunderstorms, some strong to severe, are expected to push off the Florida coast today. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... .AMZ027...TROPICAL N ATLANTIC FROM 15N TO 19N BETWEEN 55W AND 60W... Ashfall Advisory today into Tue. .AMZ035...OFFSHORE WATERS WINDWARD ISLANDS INCLUDING TRINIDAD AND TOBAGO... Ashfall Advisory today into Tue. .AMZ037...TROPICAL N ATLANTIC FROM 07N TO 15N BETWEEN 55W AND 65W... Ashfall Advisory today into Tue. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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 Latto. National Hurricane Center.