000 FZNT31 KNHC 040832 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 432 AM EDT Wed Oct 4 2017 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...A surface low near 12N81W will move NW today reaching the NW Caribbean Thu night, then move into the S central Gulf of Mexico by early Sat accompanied by strong thunderstorms, and the possibility of tropical cyclone formation. A tropical wave will pass W through the E Caribbean today and tonight, reaching the central Caribbean late in the week, and the W Caribbean thereafter. NW Caribbean W of 85W .TODAY...NE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU...NE winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .FRI...NE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...SW winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 6 ft. .SAT...S winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...S winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...S winds 10 to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. Caribbean N of 15N between 72W and 85W .TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 15 kt S of 18N, and SE less than 10 kt elsewhere. Seas 3 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 15 to 25 kt. Seas 5 to 7 ft. .FRI NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...SE winds 10 to 15 kt, shifting to E after midnight. Seas 3 to 4 ft. Caribbean from 11N to 15N W of 72W .TODAY...SE winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...Within 90 nm of coast of Colombia, E winds 10 to 15 kt, shifting to SE after midnight. Elsewhere, SE winds 10 to 15 kt. Seas 3 to 5 ft. .THU...SW winds less than 10 kt within 90 nm of coast of Colombia, and S 10 to 20 kt elsewhere. Seas 4 to 6 ft. .THU NIGHT...SW winds less than 10 kt within 90 nm of coast of Colombia, and S 10 to 20 kt elsewhere. Seas 4 to 6 ft. .FRI...S winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...SE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 5 ft. .SAT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. SW Caribbean S of 11N .TODAY...SW winds less than 10 kt. Seas 2 ft or less. .TONIGHT...SW winds less than 10 kt, shifting to S after midnight. Seas 2 ft or less, building to 3 ft after midnight. .THU...S winds 10 to 20 kt. Seas 3 to 5 ft. .THU NIGHT...S winds 10 to 20 kt. Seas 3 to 5 ft. .FRI...S winds 10 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...S winds 10 to 15 kt, shifting to SE after midnight. Seas 3 to 4 ft. .SAT...E winds less than 10 kt. Seas 2 ft or less. .SAT NIGHT...NE winds less than 10 kt. Seas 2 ft or less. .SUN...E winds less than 10 kt. Seas 2 ft or less. .SUN NIGHT...Variable winds less than 10 kt. Seas 3 ft. Caribbean between 64W and 72W .TODAY...E winds 10 to 15 kt. Gulf of Venezuela, seas 3 ft in the morning, subsiding to 2 ft or less. Elsewhere, seas 3 to 5 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU...SW winds less than 10 kt Gulf of Venezuela, and SE 10 to 15 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .THU NIGHT...NE winds less than 10 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .FRI...SE winds 10 to 15 kt, shifting to E in the afternoon. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...E winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...SE winds 10 to 15 kt. Seas 6 to 9 ft. .TONIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 5 to 7 ft. .THU...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SUN...NE winds less than 10 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 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...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...E winds less than 10 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .SUN...NE winds less than 10 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS .SYNOPSIS...Strong high pres N of the area will continue to support fresh to near gale force NE to E flow with frequent gusts to gale force W of 70W through the early morning. Winds will diminish across the basin by the end of the week as the pressure gradient significantly relaxes, with much more tranquil marine conditions this weekend. ATLC waters from 27N to 31N W of 77W ...GALE WARNING... .TODAY...NE to E winds 20 to 30 kt. Frequent gusts to gale force through early morning. Seas 8 to 13 ft. .TONIGHT...NE to E winds 20 to 25 kt. Seas 9 to 12 ft. .THU...E winds 20 to 25 kt. Seas 9 to 12 ft. .THU NIGHT...E winds 20 to 25 kt. Seas 8 to 11 ft. .FRI...SE winds 15 to 20 kt. Seas 6 to 9 ft. .FRI NIGHT...SE winds 5 to 10 kt. Seas 6 to 7 ft. .SAT...SE winds 5 to 10 kt. Seas 5 to 6 ft. .SAT NIGHT...SE to S winds 10 kt. Seas 4 to 6 ft. .SUN...SE to S winds 10 kt. Seas 4 to 5 ft. .SUN NIGHT...SE to S winds 10 to 15 kt. Seas 3 to 5 ft. ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W ...GALE WARNING W of 70W... .TODAY...NE to E winds 20 to 30 kt. Frequent gusts to gale force W of 70W through early morning. Seas 8 to 13 ft. .TONIGHT...E winds 20 to 25 kt. Seas 9 to 12 ft. .THU...E winds 20 to 25 kt. Seas 9 to 11 ft. .THU NIGHT...E to SE winds 15 to 20 kt. Seas 8 to 10 ft. .FRI...E to SE winds 10 to 15 kt. Seas 7 to 8 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 6 to 7 ft. .SAT...E to SE winds 5 to 10 kt. Seas 5 to 6 ft. .SAT NIGHT...SE winds less than 5 kt. Seas 4 to 5 ft. .SUN...E to SE winds less than 5 kt. Seas 4 ft. .SUN NIGHT...E to SE winds 5 to 10 kt. Seas 4 ft. Bahamas N of 22N ...GALE WARNING N of 25N... .TODAY...E winds 20 to 30 kt. Frequent gusts to gale force N of 25N through early morning. Seas 8 to 12 ft ATLC Exposures, and 4 to 7 ft elsewhere. .TONIGHT...E to SE winds 20 to 25 kt. Seas 6 to 8 ft ATLC Exposures, and 3 to 5 ft elsewhere. .THU...SE winds 15 to 20 kt. Seas 5 to 7 ft ATLC Exposures, and 3 to 5 ft elsewhere. .THU NIGHT...E to SE winds 10 to 15 kt. Seas 4 to 6 ft ATLC Exposures, and 3 to 4 ft elsewhere. .FRI...SE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...SE winds 5 to 10 kt. Seas 3 ft. .SUN...SE winds 5 to 10 kt. Seas 2 ft or less. .SUN NIGHT...E to SE winds 5 to 10 kt. Seas 2 ft or less. ATLC waters from 22N to 27N between 65W and the Bahamas ...GALE WARNING N of 25N... .TODAY...E winds 20 to 30 kt. Frequent gusts to gale force through early morning N of 25N. Seas 8 to 12 ft. .TONIGHT...E winds 15 to 20 kt. Seas 7 to 10 ft. .THU...E to SE winds 15 to 20 kt. Seas 7 to 9 ft. .THU NIGHT...E to SE winds 10 to 15 kt. Seas 7 to 8 ft. .FRI...SE winds 10 to 15 kt. Seas 7 to 8 ft. .FRI NIGHT...E to SE winds 5 to 10 kt. Seas 6 to 7 ft. .SAT...SE winds 5 to 10 kt. Seas 5 to 6 ft. .SAT NIGHT...E winds less than 5 kt. Seas 4 to 5 ft. .SUN...E winds 5 kt. Seas 4 ft. .SUN NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. ATLC waters S of 22N W of 65W .TODAY...E winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .FRI NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft. .SAT...SE winds less than 10 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .SUN...E winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...SE winds 10 to 20 kt. Seas 7 to 10 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 7 to 8 ft. .THU...SE winds 10 to 15 kt. Seas 7 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 7 to 8 ft. .FRI...E winds 10 to 15 kt. Seas 7 to 8 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .SAT...E winds 10 to 15 kt. Seas 6 to 8 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SUN...E winds 10 to 15 kt. Seas 5 to 7 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.