000 FZNT31 KNHC 041438 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 938 AM EST Sun Mar 4 2018 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 ATLC from 07N to 19N between 55W and 64W .SYNOPSIS...Low pressure over the NW Atlc has generated a large and dangerous N swell that will penetrate the NE Caribbean Passages through late Wed, reaching the A-B-C Islands and coastal Venezuela. A cold front extending from Puerto Rico to just S of Jamaica will weaken and dissipate through Mon. Fresh to strong winds will develop over the Central Caribbean mid-week. NW Caribbean W of 85W .TODAY...N to NE winds 5 to 10 kt. Seas 2 to 4 ft. .TONIGHT...NE to E winds 10 to 15 kt. Seas 3 to 5 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...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. .THU...NE to E winds 5 to 10 kt. Seas 2 to 4 ft, subsiding to 1 to 3 ft in the afternoon. .THU NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. Caribbean N of 15N between 72W and 85W .TODAY...N winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. .MON...NE winds 10 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...NE 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 15 kt. Seas 3 to 5 ft. .WED...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU...NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. Caribbean from 11N to 15N W of 72W .TODAY...N to NE winds 10 to 15 kt within 90 nm of coast of Colombia, and N 10 to 15 kt elsewhere. Seas 3 to 5 ft. .TONIGHT...N to NE winds 10 to 15 kt. Seas 3 to 5 ft. .MON...NE winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...NE winds 15 to 20 kt within 90 nm of coast of Colombia, and NE 10 to 15 kt elsewhere. Seas 3 to 6 ft. .TUE...NE to E winds 15 to 20 kt. Seas 3 to 6 ft. .TUE NIGHT...NE to E winds 20 to 25 kt. Seas 5 to 8 ft. .WED...NE to E winds 20 to 25 kt. Seas 5 to 8 ft. .WED NIGHT...NE to E winds 20 to 25 kt. Seas 8 to 10 ft. .THU...NE to E winds 20 to 25 kt. Seas 8 to 10 ft. .THU NIGHT...NE to E winds 15 to 20 kt. Seas 5 to 8 ft. SW Caribbean S of 11N .TODAY...N winds 10 to 15 kt. Seas 3 to 6 ft. .TONIGHT...N winds 10 to 15 kt. Seas 3 to 6 ft. .MON...N winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...N to NE winds 15 to 20 kt. Seas 3 to 6 ft. .TUE...N to NE winds 15 to 20 kt. Seas 3 to 6 ft. .TUE NIGHT...N to NE winds 15 to 20 kt. Seas 3 to 6 ft. .WED...N to NE winds 15 to 20 kt. Seas 4 to 7 ft. .WED NIGHT...N to NE winds 15 to 20 kt. Seas 4 to 7 ft. .THU...N to NE winds 15 to 20 kt. Seas 5 to 8 ft. .THU NIGHT...N to NE winds 15 to 20 kt. Seas 4 to 7 ft. Caribbean between 64W and 72W .TODAY...N to NE winds 10 to 15 kt Gulf of Venezuela, and NW to N 5 to 10 kt elsewhere. Seas 3 to 5 ft. .TONIGHT...N to NE winds 10 to 15 kt Gulf of Venezuela, and N 5 to 10 kt elsewhere. Seas 4 to 7 ft. .MON...N to NE winds 10 to 15 kt Gulf of Venezuela, and N to NE 5 to 10 kt elsewhere. Seas 5 to 8 ft. .MON NIGHT...NE to E winds 10 to 15 kt. Seas 6 to 10 ft. .TUE...NE to E winds 15 to 20 kt. Seas 5 to 8 ft. .TUE NIGHT...NE to E winds 15 to 20 kt. Seas 6 to 10 ft. .WED...E winds 15 to 20 kt. Seas 8 to 10 ft. .WED NIGHT...E winds 20 kt. Seas 8 to 10 ft. .THU...E winds 20 kt. Seas 6 to 10 ft. .THU NIGHT...E winds 20 to 25 kt. Seas 6 to 10 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...SW winds 10 to 15 kt. Seas 5 to 7 ft, building to 7 to 10 ft in the afternoon. .TONIGHT...W winds 10 to 15 kt. Seas 9 to 14 ft. .MON...W winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 9 to 14 ft. .MON NIGHT...N winds less than 10 kt. Seas 8 to 13 ft. .TUE...N winds less than 10 kt. Seas 8 to 11 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 8 to 13 ft. .WED...NE winds 10 to 15 kt. Seas 8 to 11 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 8 to 11 ft. .THU...E winds 10 to 15 kt. Seas 7 to 10 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 7 to 10 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...SE winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft, building to 7 to 10 ft after midnight. .MON...SE winds 10 to 15 kt, shifting to E in the afternoon. Seas 8 to 11 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 8 to 11 ft. .TUE...E winds 10 to 15 kt. Seas 7 to 10 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .WED...E winds 10 to 20 kt. Seas 7 to 10 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .THU...E winds 10 to 15 kt. Seas 7 to 10 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS .SYNOPSIS...A cold front extends from 22N58W to Puerto Rico. Strong to gale force winds prevail N of the front. The front will shift SE of the area today. Gale force winds will shift E of the area by early Tue. The largest swell event thus far this winter is propagating across the forecast waters, and will affect all the waters E of Florida and the Bahamas through mid-week. Another cold front may impact the waters E of Florida Tue night and Wed, then shift E of the area through the end of the week. ATLC waters from 27N to 31N W of 77W .TODAY...N winds 20 to 25 kt. Seas 17 to 23 ft. .TONIGHT...N to NE winds 20 to 25 kt. Seas 17 to 23 ft. .MON...N winds 10 to 15 kt. Seas 15 to 20 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 12 to 16 ft. .TUE...S winds 15 to 20 kt. Seas 11 to 13 ft. .TUE NIGHT...S to SW winds 20 to 30 kt. Seas 12 to 16 ft. .WED...W to NW winds 20 to 25 kt. Seas 12 to 14 ft. .WED NIGHT...NW winds 20 to 25 kt. Seas 11 to 13 ft. .THU...W to NW winds 10 to 15 kt, increasing to 20 kt in the afternoon. Seas 9 to 11 ft. .THU NIGHT...W to NW winds 20 to 30 kt. Seas 10 to 12 ft. ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W ...GALE WARNING... .TODAY...NW winds 25 to 35 kt. Seas 23 to 33 ft. .TONIGHT...NW winds 25 to 35 kt. Seas 20 to 30 ft. .MON...W to NW winds 30 to 40 kt N of 29N, and W to NW 25 to 30 kt elsewhere. Seas 20 to 28 ft. .MON NIGHT...N of 29N, NW winds 30 to 40 kt, diminishing to 25 to 30 kt late. Elsewhere, NW winds 25 to 30 kt. Seas 20 to 30 ft. .TUE...NW winds 20 to 25 kt. Seas 17 to 23 ft. .TUE NIGHT...NW winds 15 to 20 kt. Seas 14 to 18 ft. .WED...W winds 5 to 10 kt, becoming SW 20 to 25 kt in the afternoon. Seas 12 to 14 ft. .WED NIGHT...SW winds 20 to 25 kt. Seas 12 to 14 ft. .THU...W winds 20 to 25 kt. Seas 11 to 13 ft. .THU NIGHT...SW to W winds 15 to 20 kt. Seas 9 to 11 ft. Bahamas N of 22N .TODAY...N winds 15 to 20 kt. Seas 14 to 18 ft ATLC exposures, and 2 to 4 ft Elsewhere. .TONIGHT...N winds 15 to 20 kt. Seas 15 to 20 ft ATLC exposures, and 2 to 4 ft Elsewhere. .MON...N to NE winds 15 to 20 kt. Seas 15 to 20 ft ATLC exposures, and 2 to 4 ft Elsewhere. .MON NIGHT...N to NE winds 5 to 10 kt. Seas 13 to 17 ft ATLC exposures, and 2 to 4 ft Elsewhere. .TUE...E winds 5 to 10 kt. Seas 6 to 10 ft ATLC exposures, and 2 to 4 ft Elsewhere. .TUE NIGHT...SE winds 10 to 15 kt. Seas 5 to 8 ft ATLC exposures, and 2 to 4 ft Elsewhere. .WED...S to SW winds 15 to 20 kt. Seas 5 to 8 ft ATLC exposures, and 2 to 4 ft Elsewhere. .WED NIGHT...W winds 15 to 20 kt. Seas 4 to 7 ft ATLC exposures, and 1 to 3 ft Elsewhere. .THU...W to NW winds 15 to 20 kt. Seas 3 to 6 ft ATLC exposures, and 1 to 3 ft Elsewhere. .THU NIGHT...NW winds 15 to 20 kt. Seas 3 to 6 ft ATLC exposures, and 1 to 3 ft Elsewhere. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...NW winds 15 to 25 kt W of 70W, and NW 20 to 30 kt elsewhere. Seas 17 to 22 ft W of 70W, and 18 to 25 ft elsewhere. .TONIGHT...N winds 15 to 25 kt W of 70W, and NW 20 to 25 kt elsewhere. Seas 18 to 22 ft. .MON...NW winds 10 to 20 kt. Seas 15 to 20 ft. .MON NIGHT...N winds 10 to 20 kt W of 70W, and NW 15 to 25 kt elsewhere. Seas 14 to 19 ft. .TUE...N winds 10 to 20 kt. Seas 13 to 18 ft. .TUE NIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 12 to 15 ft. .WED...S winds less than 10 kt, shifting to SW in the afternoon. Seas 11 to 13 ft. .WED NIGHT...SW winds 10 to 20 kt. Seas 10 to 12 ft. .THU...SW winds 10 to 15 kt. Seas 9 to 12 ft. .THU NIGHT...SW winds 10 to 20 kt. Seas 8 to 10 ft. ATLC waters S of 22N W of 65W .TODAY...NW to N winds 15 to 20 kt. Seas 8 to 17 ft. .TONIGHT...NW to N winds 15 to 20 kt. Seas 8 to 20 ft. .MON...N winds 15 to 20 kt. Seas 8 to 20 ft. .MON NIGHT...N to NE winds 10 kt. Seas 8 to 17 ft. .TUE...NE winds 10 to 15 kt. Seas 7 to 10 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 6 to 10 ft. .WED...E to SE winds 10 to 15 kt. Seas 6 to 10 ft. .WED NIGHT...E to SE winds 10 to 15 kt. Seas 5 to 8 ft. .THU...S winds 5 to 10 kt, shifting to SW to W in the afternoon. Seas 4 to 7 ft. .THU NIGHT...N to NE winds 5 to 10 kt. Seas 3 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...W winds 10 to 20 kt. Seas 11 to 16 ft. .TONIGHT...W winds 10 to 20 kt. Seas 16 to 19 ft. .MON...W winds 10 to 20 kt. Seas 14 to 17 ft. .MON NIGHT...W winds 10 to 15 kt. Seas 12 to 14 ft. .TUE...W winds 10 to 15 kt. Seas 11 to 14 ft. .TUE NIGHT...NW winds 10 kt. Seas 12 to 15 ft. .WED...N winds 10 kt in the morning, becoming variable winds less than 10 kt. Seas 11 to 13 ft. .WED NIGHT...Variable winds less than 10 kt, becoming E less than 10 kt after midnight. Seas 10 to 11 ft. .THU...E winds 10 kt. Seas 9 to 10 ft. .THU NIGHT...SE winds 10 kt. Seas 8 to 9 ft.