031 FZNT31 KNHC 160922 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 522 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 Mon 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 while gentle to moderate winds will dominate elsewhere through the forecast period. NW Caribbean W of 85W .TODAY...E winds less than 10 kt. Seas 2 ft or less. .TONIGHT...E winds 10 to 15 kt. Seas 2 ft or less. .SUN...E winds less than 10 kt. Seas 2 ft or less. .SUN NIGHT...E winds 10 to 15 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...NE winds less than 10 kt. Seas 2 ft or less. Caribbean N of 15N between 72W and 85W .TODAY...S of 18N, E winds 10 to 20 kt. Elsewhere, E winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 ft. .TONIGHT...E winds 10 to 20 kt. Seas 3 ft. .SUN...S of 18N, E winds 10 to 20 kt. Elsewhere, E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. .SUN NIGHT...S of 18N, E winds 10 to 15 kt. Elsewhere, NE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 ft. .MON...S of 18N, E winds 10 to 20 kt. Elsewhere, NE winds 10 to 15 kt, shifting to E in the afternoon. Seas 3 ft. .MON NIGHT...S of 18N, E winds 10 to 15 kt. Elsewhere, NE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 ft. .TUE...E winds 10 to 20 kt. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. .TUE NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. .WED...S of 18N, E winds 10 to 20 kt. Elsewhere, E winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. Caribbean from 11N to 15N W of 72W .TODAY...E winds 10 to 20 kt within 90 nm of coast of Colombia, and E 15 to 25 kt elsewhere. Seas 4 to 6 ft. .TONIGHT...NE winds 15 to 25 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 15 to 25 kt elsewhere. Seas 3 to 5 ft. .MON...E winds 10 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...NE winds 15 to 25 kt. Seas 3 to 5 ft. .TUE...NE winds 15 to 25 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft. .WED...E winds 15 to 25 kt. Seas 4 to 6 ft. SW Caribbean S of 11N .TODAY...NE winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...NW winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...NE winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. .MON...N winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 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. Caribbean between 64W and 72W .TODAY...E winds 10 to 20 kt Gulf of Venezuela, and E 15 to 25 kt elsewhere. Seas 3 to 4 ft. .TONIGHT...NE winds 15 to 25 kt Gulf of Venezuela, and E 15 to 25 kt elsewhere. Seas 3 to 5 ft. .SUN...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. .MON...E winds 10 to 20 kt. Seas 3 to 4 ft. .MON NIGHT...NE winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 3 to 5 ft. .TUE...E winds 10 to 20 kt. Seas 3 to 5 ft. .TUE NIGHT...E winds 15 to 25 kt. Seas 3 to 5 ft. .WED...E winds 10 to 20 kt Gulf of Venezuela, and E 15 to 25 kt elsewhere. Seas 3 to 5 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...NE winds less than 10 kt. Seas 4 to 6 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...NE winds less than 10 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft. .MON...NE winds less than 10 kt, shifting to W in the afternoon. Seas 4 to 6 ft. .MON NIGHT...W winds less than 10 kt, shifting to S after midnight. Seas 4 to 6 ft. .TUE...S winds less than 10 kt. Seas 4 to 6 ft. .TUE NIGHT...SE 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. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...SE winds 10 to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .MON...SE winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...E winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .WED...E winds 10 to 20 kt. Seas 4 to 6 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Tropical Depression Fifteen is near 17.9N 45.3W at 5 AM EDT, and is moving north-northwest at 12 kt. Maximum sustained winds are 30 kt with gusts to 40 kt, and the minimum central pressure is 1007 mb. Fifteen will strengthen to a tropical storm near 19.6N 46.4W this afternoon, move to 21.5N 48.3W Sun morning, 23.1N 49.8W Sun afternoon, 24.5N 51.3W Mon morning, strengthen to a hurricane near 25.9N 53.0W Mon afternoon, and 27.2N 55.1W Tue morning. Fifteen will change little in intensity as it moves near 31.0N 58.4W 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. ATLC waters from 27N to 31N W of 77W .TODAY...E winds 10 kt. Seas 6 to 9 ft. .TONIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .SUN...SE winds 10 to 15 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, increasing to 10 to 15 kt in the afternoon. 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. ATLC waters from 27N to 31N between 65W and 77W .TODAY...W of 70W, N winds less than 10 kt, shifting to NE in the afternoon. Elsewhere, NE winds less than 10 kt. Seas 8 to 11 ft. .TONIGHT...E winds less than 10 kt. Seas 7 to 10 ft. .SUN...E winds less than 10 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .MON...SE winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...S winds 10 to 15 kt. Seas 4 to 5 ft. .TUE...W of 70W, SW winds 10 to 15 kt, shifting to NW in the afternoon. Elsewhere, E winds less than 10 kt, shifting to NE in the afternoon. Seas 4 to 6 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft W of 70W, and 6 to 9 ft elsewhere. .WED...N winds 10 to 20 kt. Seas 5 to 7 ft W of 70W, and 7 to 10 ft elsewhere. Bahamas N of 22N .TODAY...NE winds less than 10 kt. Seas 3 to 5 ft. .TONIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .SUN...E winds less than 10 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .MON...SE winds less than 10 kt. Seas 3 ft. .MON NIGHT...E winds less than 10 kt. Seas 2 ft or less. .TUE...E winds less than 10 kt. Seas 2 ft or less. .TUE NIGHT...E winds 10 to 15 kt. Seas 2 ft or less. .WED...E winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 ft or less, building to 3 ft in the afternoon. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...E winds less than 10 kt. Seas 6 to 8 ft. .TONIGHT...E winds less than 10 kt. Seas 6 to 8 ft. .SUN...E winds less than 10 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 10 kt. Seas 6 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...E winds less than 10 kt W of 70W, and NE 10 to 15 kt elsewhere. Seas 5 to 7 ft. .TUE NIGHT...E winds less than 10 kt W of 70W, and N 10 to 15 kt elsewhere. Seas 4 to 6 ft W of 70W, and 6 to 8 ft elsewhere. .WED...W of 70W, E winds less than 10 kt. Elsewhere, N winds 10 to 15 kt, shifting to NE in the afternoon. Seas 6 to 8 ft. ATLC waters S of 22N W of 65W .TODAY...E winds less than 10 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 5 ft. .SUN...E winds less than 10 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON...E 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 3 to 5 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED...E winds 10 to 20 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...E winds 10 kt. Seas 6 to 7 ft. .TONIGHT...NE winds 10 kt. Seas 6 to 7 ft. .SUN...NE winds 10 to 15 kt. Seas 6 to 7 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. .MON...N winds 10 to 15 kt. Seas 6 to 9 ft. .MON NIGHT...NW winds 10 to 20 kt. Seas 6 to 9 ft. .TUE...W winds 10 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...W winds 10 to 20 kt. Seas 6 to 8 ft. .WED...S winds 10 to 15 kt, shifting to E in the afternoon. Seas 6 to 7 ft.