000 FZNT31 KNHC 161455 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1055 AM EDT Sat Sep 16 2023 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...Northerly swell affecting the NE Caribbean Passages will gradually subside today, then is forecast to build again there and in the northern Tropical N Atlantic Sun night through Wed due to Tropical Depression Fifteen, which is forecast to remain well NE of the area. Otherwise, moderate to fresh trades will prevail across the Central Caribbean, locally fresh to strong off Colombia, while gentle to moderate winds will dominate elsewhere through the forecast period. NW Caribbean W of 85W .THIS AFTERNOON...E winds less than 10 kt. Seas 2 ft or less. .TONIGHT...E winds less than 10 kt. Seas 2 ft or less. .SUN...E winds less than 10 kt. Seas 2 ft or less. .SUN NIGHT...E winds less than 10 kt. Seas 2 ft or less. .MON...E winds less than 10 kt. Seas 2 ft or less. .MON NIGHT...E winds less than 10 kt. Seas 2 ft or less. .TUE...NE winds less than 10 kt. Seas 2 ft or less. .TUE NIGHT...E winds less than 10 kt. Seas 2 ft or less. .WED...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .WED NIGHT...E winds less than 10 kt. Seas 2 ft or less. 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 4 ft S of 18N, and 2 ft or less elsewhere. .TONIGHT...E winds 10 to 15 kt S of 18N, and NE less than 10 kt elsewhere. Seas 3 to 4 ft S of 18N, and 2 ft or less elsewhere. .SUN...E winds 10 to 15 kt S of 18N, and E less than 10 kt elsewhere. Seas 3 to 4 ft S of 18N, and 2 ft or less elsewhere. .SUN NIGHT...S of 18N, E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Elsewhere, Variable winds less than 10 kt. Seas 3 to 4 ft. .MON...NE winds 10 to 15 kt. Seas 3 ft. .MON NIGHT...E winds 10 to 15 kt, shifting to NE after midnight. Seas 3 ft. .TUE...E winds 10 to 15 kt. Seas 3 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .WED...E winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Caribbean from 11N to 15N W of 72W .THIS AFTERNOON...NE winds 10 to 20 kt. Seas 3 to 5 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds 10 to 20 kt within 90 nm of coast of Colombia, and NE 10 to 15 kt elsewhere. Seas 3 to 5 ft. .MON...E winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...NE winds 10 to 20 kt. Seas 3 to 5 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .WED...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. SW Caribbean S of 11N .THIS AFTERNOON...NE winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...N winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .SUN...N winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...N winds less than 10 kt. Seas 3 to 5 ft. .MON...NE winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...NE winds 10 to 15 kt, shifting to N in the afternoon. Seas 3 to 4 ft. .TUE NIGHT...N winds less than 10 kt. Seas 3 to 4 ft. .WED...N winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...W winds less than 10 kt. Seas 3 ft. Caribbean between 64W and 72W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...NE winds 15 to 25 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. .SUN...Gulf of Venezuela, E winds 15 to 25 kt, becoming NE 10 to 15 kt in the afternoon. Elsewhere, E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...NE winds 15 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 4 ft. .MON...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...E winds 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 20 kt. Seas 4 to 6 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .THIS AFTERNOON...NE winds less than 10 kt. Seas 4 to 6 ft. .TONIGHT...NE winds less than 10 kt. Seas 4 to 6 ft. .SUN...NE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft. .MON...Variable winds less than 10 kt. Seas 4 to 6 ft. .MON NIGHT...Variable winds less than 10 kt. Seas 4 to 6 ft. .TUE...Variable winds less than 10 kt. Seas 4 to 6 ft. .TUE NIGHT...Variable winds less than 10 kt. Seas 4 to 6 ft. .WED...E winds less than 10 kt. Seas 4 to 6 ft. .WED NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .THIS AFTERNOON...E winds less than 10 kt. Seas 3 to 5 ft. .TONIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .SUN...SE winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .MON...SE winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Tropical Depression Fifteen is near 19.7N 46.2W at 11 AM EDT, and is moving north-northwest at 16 kt. Maximum sustained winds are 30 kt with gusts to 40 kt, and the minimum central pressure is 1006 mb. Fifteen will strengthen to a tropical storm near 21.3N 47.4W this evening, move to 23.2N 49.0W Sun morning, 24.7N 50.4W Sun evening, strengthen to a hurricane near 26.2N 52.2W Mon morning, 27.5N 54.1W Mon evening, and 28.9N 56.0W Tue morning. Fifteen will change little in intensity as it moves N of the area to 32.8N 58.3W early Wed. Otherwise, high pres will prevail across the waters through the weekend. A weak cold front is forecast to move off the SE U.S. coast early next week with new high pres building down behind it. The front may stall and linger along 27N/28N through mid-week. ATLC waters from 27N to 31N W of 77W .THIS AFTERNOON...E winds 10 kt. Seas 6 to 8 ft. .TONIGHT...E winds 10 kt. Seas 6 to 8 ft. .SUN...SE winds 10 kt. Seas 5 to 7 ft. .SUN NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. .MON...W winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...N winds less than 10 kt. Seas 3 to 4 ft. .TUE...NE winds less than 10 kt. Seas 3 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .WED...NE winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. ATLC waters from 27N to 31N between 65W and 77W .THIS AFTERNOON...NE winds 10 kt W of 70W, and Variable less than 10 kt elsewhere. Seas 8 to 11 ft. .TONIGHT...E winds 10 kt W of 70W, and Variable less than 10 kt elsewhere. Seas 7 to 10 ft. .SUN...E winds less than 10 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 10 kt. Seas 5 to 7 ft. .MON...SE winds 10 kt. Seas 4 to 6 ft. .MON NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .TUE...SE winds less than 10 kt, shifting to N in the afternoon. Seas 4 to 6 ft. .TUE NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 6 to 9 ft. .WED...N winds 10 to 15 kt. Seas 7 to 10 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 7 to 10 ft. Bahamas N of 22N .THIS AFTERNOON...Variable winds less than 10 kt. Seas 3 to 5 ft. .TONIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .SUN...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .MON...SE winds less than 10 kt. Seas 3 to 4 ft. .MON NIGHT...E winds less than 10 kt. Seas 3 ft. .TUE...E winds less than 10 kt. Seas 2 ft or less. .TUE NIGHT...E winds less than 10 kt. Seas 2 ft or less. .WED...E winds less than 10 kt. Seas 3 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .THIS AFTERNOON...E winds less than 10 kt W of 70W, and Variable less than 10 kt elsewhere. Seas 6 to 8 ft. .TONIGHT...E winds 10 kt W of 70W, and Variable less than 10 kt elsewhere. Seas 6 to 8 ft. .SUN...E winds 10 kt W of 70W, and Variable less than 10 kt elsewhere. Seas 6 to 8 ft. .SUN NIGHT...E winds 10 kt. Seas 5 to 7 ft. .MON...E winds 10 kt. Seas 5 to 6 ft. .MON NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .TUE...NE winds less than 10 kt. Seas 5 to 7 ft. .TUE NIGHT...NE winds less than 10 kt. Seas 6 to 8 ft. .WED...NE winds less than 10 kt. Seas 6 to 9 ft. .WED NIGHT...E winds less than 10 kt. Seas 6 to 9 ft. ATLC waters S of 22N W of 65W .THIS AFTERNOON...E winds less than 10 kt. Seas 4 to 6 ft. .TONIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .SUN...E winds less than 10 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .MON...E winds less than 10 kt. Seas 3 to 5 ft. .MON NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .TUE...E winds less than 10 kt. Seas 3 to 5 ft. .TUE NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft. .WED...E winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W .THIS AFTERNOON...E winds 10 kt. Seas 6 to 7 ft. .TONIGHT...NE winds 10 kt. Seas 6 to 7 ft. .SUN...NE winds 10 kt. Seas 6 to 7 ft. .SUN NIGHT...NE winds 10 kt. Seas 6 to 8 ft. .MON...N winds less than 10 kt. Seas 6 to 9 ft. .MON NIGHT...NW winds less than 10 kt. Seas 6 to 9 ft. .TUE...W winds less than 10 kt. Seas 6 to 9 ft. .TUE NIGHT...W winds less than 10 kt. Seas 7 to 9 ft. .WED...Variable winds less than 10 kt, becoming E less than 10 kt in the afternoon. Seas 6 to 8 ft. .WED NIGHT...E winds 10 kt. Seas 5 to 7 ft.