000 FZNT31 KNHC 131424 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1024 AM EDT Tue Apr 13 2021 Marine Weather HF Voice Broadcast for the Tropical N Atlantic from 07N to 22N between 55W and 64W, the SW N Atlantic S of 31N W of 65W including Bahamas, and the Caribbean Sea. Seas given as significant wave height, which is the average height of the highest 1/3 of the waves. Individual waves may be more than twice the significant wave height. Synopsis for Caribbean Sea and Tropical N Atlantic from 07N to 19N between 55W and 64W .SYNOPSIS...An Ashfall Advisory is in effect for La Soufriere Volcano on the island of St. Vincent near 13.3N 61.2W. Mariners transiting the Tropical N Atlantic waters south of 15N should exercise caution and be aware of the possibility of encountering volcanic ash. Otherwise, moderate to fresh SE winds will continue over the far NW Caribbean through the period, except for pulsing strong winds in the Gulf of Honduras. Elsewhere, generally moderate to fresh trade winds will persist through this week. NW Caribbean W of 85W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .WED...E winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 4 to 5 ft. .THU...SE winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. .FRI...SE winds 10 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...SE winds 15 to 25 kt. Seas 5 to 7 ft. Caribbean N of 15N between 72W and 85W .THIS AFTERNOON...E winds 10 to 15 kt S of 18N, and E less than 10 kt elsewhere. Seas 3 to 5 ft. .TONIGHT...S of 18N, NE winds 10 to 15 kt. Elsewhere, E winds less than 10 kt, becoming NE 10 to 20 kt. Seas 3 to 5 ft. .WED...E winds 10 to 20 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...E winds 10 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. Caribbean from 11N to 15N W of 72W .THIS AFTERNOON...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .WED...NE winds 15 to 20 kt within 90 nm of coast of Colombia, and NE 10 to 15 kt elsewhere. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .THU...NE winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. SW Caribbean S of 11N .THIS AFTERNOON...NE winds less than 10 kt. Seas 3 to 5 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .WED...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft. .THU...NE winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 4 to 6 ft. .FRI...N winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft. .SAT...Variable winds less than 10 kt. Seas 3 to 4 ft. .SAT NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. Caribbean between 64W and 72W .THIS AFTERNOON...Gulf of Venezuela, E winds 10 to 15 kt, shifting to NE in the afternoon. Elsewhere, E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .THU...E winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .THIS AFTERNOON...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .TONIGHT...SE winds less than 10 kt. Seas 4 to 6 ft. .WED...S winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .WED NIGHT...SW winds less than 10 kt, shifting to E after midnight. Seas 3 to 5 ft. .THU...SE winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .FRI...SE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W ...ASHFALL ADVISORY... .THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 7 ft. Volcanic ash with reduced visibility possible. .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Volcanic ash with reduced visibility possible. .WED...SE winds 10 to 15 kt. Seas 4 to 6 ft. Volcanic ash with reduced visibility possible. .WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Volcanic ash with reduced visibility possible. .THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A cold front that extends through 26N65W to central Cuba will move eastward and pass east of the forecast waters on Wed. A secondary cold front or low pressure trough will cross the northern waters later today through early Wed, with strong winds and building seas expected N of 27N and E of 75W. Yet another cold front will move off the southeastern U.S. coast later this week and over the northern offshore waters Thu night and Fri, then stall north of the Bahamas this weekend. ATLC waters from 27N to 31N W of 77W .THIS AFTERNOON...N winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED...SE winds less than 10 kt. Seas 4 to 6 ft. .WED NIGHT...S winds 10 to 20 kt. Seas 5 to 6 ft. .THU...SW winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...W winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .FRI NIGHT...NW winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 4 to 6 ft. .SAT...SW winds less than 10 kt. Seas 4 to 5 ft. .SAT NIGHT...S winds less than 10 kt, shifting to SW after midnight. Seas 4 to 5 ft. ATLC waters from 27N to 31N between 65W and 77W .THIS AFTERNOON...NW winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...N winds 15 to 25 kt W of 70W, and NW 15 to 25 kt elsewhere. Seas 7 to 10 ft. .WED...N winds 10 to 20 kt W of 70W, and N 15 to 25 kt elsewhere. Seas 7 to 10 ft W of 70W, and 8 to 11 ft elsewhere. .WED NIGHT...W of 70W, N winds 10 to 15 kt, shifting to NE after midnight. Elsewhere, N winds 10 to 15 kt. Seas 6 to 9 ft. .THU...NW winds less than 10 kt, shifting to SW in the afternoon. Seas 5 to 7 ft. .THU NIGHT...SW winds 10 to 20 kt. Seas 6 to 8 ft. .FRI...SW winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...W winds 10 to 15 kt. Seas 6 to 8 ft. .SAT...W winds 10 to 15 kt. Seas 6 to 8 ft. .SAT NIGHT...SW winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 5 to 7 ft. Bahamas N of 22N .THIS AFTERNOON...N winds 10 to 15 kt. Seas 3 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 3 ft. .WED...NE winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU...SE winds less than 10 kt. Seas 3 to 5 ft. .THU NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .FRI...S winds less than 10 kt. Seas 3 ft. .FRI NIGHT...SE winds less than 10 kt. Seas 3 ft. .SAT...S winds less than 10 kt. Seas 3 ft. .SAT NIGHT...SE winds less than 10 kt. Seas 3 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .THIS AFTERNOON...NW winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...NW winds 10 to 20 kt. Seas 5 to 7 ft. .WED...N winds 10 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...N winds 10 to 15 kt. Seas 6 to 8 ft. .THU...NE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 5 to 7 ft. .THU NIGHT...Variable winds less than 10 kt, becoming SE less than 10 kt after midnight. Seas 4 to 6 ft. .FRI...S winds less than 10 kt. Seas 4 to 6 ft. .FRI NIGHT...S winds less than 10 kt. Seas 4 to 6 ft. .SAT...S winds 10 kt. Seas 4 to 6 ft. .SAT NIGHT...S winds less than 10 kt. Seas 4 to 5 ft. ATLC waters S of 22N W of 65W .THIS AFTERNOON...W winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. .WED...N winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .WED NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds less than 10 kt. Seas 4 to 6 ft. .THU NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .FRI...SE winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .SAT...SE winds less than 10 kt. Seas 3 to 5 ft. .SAT NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. ATLC waters from 19N to 22N between 55W and 65W .THIS AFTERNOON...S winds 10 kt. Seas 4 to 5 ft. .TONIGHT...SW winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 5 ft. .WED...W winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...NW winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 4 to 6 ft. .THU...N winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 4 to 6 ft. .THU NIGHT...Variable winds less than 10 kt, becoming E 10 kt after midnight. Seas 4 to 6 ft. .FRI...SE winds 10 kt. Seas 5 to 6 ft. .FRI NIGHT...SE winds 10 kt. Seas 5 ft. .SAT...SE winds 10 kt. Seas 5 ft. .SAT NIGHT...SE winds 10 kt. Seas 4 to 5 ft.