000 FZNT31 KNHC 230737 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 337 AM EDT Wed Aug 23 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 tropical wave between the Windward Passage and the central coast of Colombia will move through the western Caribbean through late Thu and early Fri. Strong trade winds will pulse over the S central Caribbean and Gulf of Honduras in the wake of the tropical wave. A trough will move across the Leeward Islands today and tonight. NW Caribbean W of 85W .TODAY...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .TONIGHT...E winds less than 10 kt, shifting to SE after midnight. Seas 3 ft. .THU...SE winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .FRI...SE winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. .SAT...SE winds 15 to 25 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. Caribbean N of 15N between 72W and 85W .TODAY...E winds 10 to 15 kt S of 18N, and E less than 10 kt elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. .TONIGHT...E winds 10 to 15 kt S of 18N, and SE less than 10 kt elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. .THU...S of 18N, E winds 10 to 20 kt. Elsewhere, SE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 4 to 6 ft S of 18N, and 2 ft or less elsewhere. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft S of 18N, and 3 ft elsewhere. .FRI...SE winds 10 to 20 kt. 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. Seas 3 to 5 ft. .SAT NIGHT...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, increasing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 ft. Caribbean from 11N to 15N W of 72W .TODAY...E winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .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 4 to 6 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. SW Caribbean S of 11N .TODAY...NE winds less than 10 kt. Seas 3 to 5 ft. .TONIGHT...Variable winds less than 10 kt, becoming SW less than 10 kt after midnight. Seas 3 to 4 ft. .THU...SW winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...Variable winds less than 10 kt, becoming S less than 10 kt after midnight. Seas 3 ft. .FRI...Variable winds less than 10 kt. Seas 3 ft. .FRI NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. .SAT...N winds less than 10 kt. Seas 3 to 5 ft. .SAT NIGHT...N winds less than 10 kt. Seas 3 to 5 ft. .SUN...NE winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...N winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 3 to 4 ft. Caribbean between 64W and 72W .TODAY...E winds 10 to 20 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .THU...E winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. 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 3 to 5 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...E winds less than 10 kt. Seas 3 to 5 ft. .TONIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 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...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 5 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 5 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...E winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 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...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 5 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 5 ft. SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS .SYNOPSIS...A surface trough off the east coast of Florida is supporting scattered showers across the Bahamas. Ridging will build along 28N through Fri, then shift E ahead of weak low pressure emerging off the Florida coast Sat. The low pressure may deepen as it moves N of the area Sun. ATLC waters from 27N to 31N W of 77W .TODAY...S winds less than 10 kt. Seas 4 to 5 ft. .TONIGHT...S winds 10 to 15 kt. Seas 4 ft. .THU...S winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...S winds 10 to 15 kt. Seas 4 ft. .FRI...S winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .FRI NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .SAT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...S winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft. ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W .TODAY...E winds less than 10 kt. Seas 3 to 5 ft. .TONIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .THU...S winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...S winds less than 10 kt. Seas 3 to 4 ft. .FRI...S winds 10 kt. Seas 3 to 4 ft. .FRI NIGHT...S winds less than 10 kt. Seas 3 to 4 ft. .SAT...S winds less than 10 kt. Seas 3 ft. .SAT NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .SUN...S winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. Bahamas N of 22N .TODAY...SE winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 3 ft. .THU...SE winds 10 to 15 kt. Seas 3 ft. .THU NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 ft. .FRI...SE winds less than 10 kt. Seas 3 ft. .FRI NIGHT...SE winds less than 10 kt. Seas 2 ft or less. .SAT...SE winds less than 10 kt. Seas 2 ft or less. .SAT NIGHT...SE winds less than 10 kt. Seas 2 ft or less. .SUN...SE winds less than 10 kt. Seas 2 ft or less. .SUN NIGHT...SE winds less than 10 kt. Seas 2 ft or less. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...E winds 10 kt W of 70W, and Variable less than 10 kt elsewhere. Seas 4 to 5 ft. .TONIGHT...SE winds less than 10 kt. Seas 4 ft. .THU...SE winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...SE winds 10 kt. Seas 3 to 4 ft. .FRI...SE winds 10 kt. Seas 3 to 4 ft. .FRI NIGHT...E winds 10 kt. Seas 3 to 4 ft. .SAT...E winds 10 kt. Seas 3 to 4 ft. .SAT NIGHT...E winds 10 kt. Seas 3 to 4 ft. .SUN...SE winds 10 kt. Seas 3 to 4 ft. .SUN NIGHT...SE winds 10 kt. Seas 3 to 4 ft. ATLC waters S of 22N W of 65W .TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...E winds 10 kt. Seas 4 to 5 ft. .TONIGHT...E winds 10 kt. Seas 4 to 5 ft. .THU...E winds 10 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .SAT...E winds 10 to 15 kt. Seas 4 to 5 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .SUN...E winds 10 to 15 kt. Seas 4 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.