000 FZNT31 KNHC 040831 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 331 AM EST Thu Jan 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...A cold front from east-central Cuba to NE Nicaragua will drift SE and become ill defined across the SW Caribbean to Windward Passage through late Fri. Broad low pressure near 13N79W will remain stationary and gradually weaken to a trough through Fri. Reinforcing cold air behind the front will support gale force N winds today off the northern coast of Panama. Large seas to 12 ft are likely east of Nicaragua southward to the northern coast of Panama. Large NW swell will invade Atlc waters and Caribbean passages late Fri through the weekend. NW Caribbean W of 85W .TODAY...N winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...NE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SUN...NE winds 10 to 20 kt. Seas 6 to 9 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .MON...NE winds 10 to 20 kt. Seas 6 to 8 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. Caribbean N of 15N between 72W and 85W .TODAY...NE winds 15 to 25 kt S of 18N, and N 10 to 20 kt elsewhere. Seas 6 to 8 ft S of 18N, and 3 to 5 ft elsewhere. .TONIGHT...NE winds 15 to 25 kt S of 18N, and NE 10 to 20 kt elsewhere. Seas 6 to 8 ft S of 18N, and 4 to 6 ft elsewhere. .FRI...NE winds 15 to 25 kt. Seas 5 to 7 ft. .FRI NIGHT...NE winds 15 to 25 kt. Seas 6 to 9 ft S of 18N, and 5 to 7 ft elsewhere. .SAT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .SAT NIGHT...NE winds 15 to 25 kt. Seas 6 to 8 ft. .SUN...NE winds 15 to 25 kt. Seas 6 to 9 ft. .SUN NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft. .MON...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Caribbean from 11N to 15N W of 72W .TODAY...E winds 10 to 20 kt within 90 nm of coast of Colombia, and NE 20 to 30 kt elsewhere. Seas 4 to 6 ft within 90 nm of coast of Colombia, and 6 to 9 ft elsewhere. .TONIGHT...E winds 10 to 20 kt within 90 nm of coast of Colombia, and NE 15 to 25 kt elsewhere. Seas 4 to 6 ft within 90 nm of coast of Colombia, and 7 to 10 ft elsewhere. .FRI...NE winds 15 to 25 kt. Seas 5 to 7 ft within 90 nm of coast of Colombia, and 7 to 10 ft elsewhere. .FRI NIGHT...NE winds 15 to 25 kt. Seas 7 to 10 ft. .SAT...NE winds 15 to 25 kt. Seas 6 to 9 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .SUN...E winds 10 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON...E winds 10 to 20 kt. Seas 6 to 9 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. SW Caribbean S of 11N ...GALE WARNING... .TODAY...N winds 25 to 35 kt. Seas 6 to 9 ft. .TONIGHT...N winds 15 to 25 kt. Seas 6 to 9 ft. .FRI...N winds 10 to 20 kt. Seas 6 to 9 ft. .FRI NIGHT...N winds 10 to 20 kt. Seas 7 to 10 ft. .SAT...N winds 10 to 20 kt. Seas 6 to 9 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .SUN...NE winds 10 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft. .MON...NE winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...NW winds less than 10 kt. Seas 5 to 7 ft. Caribbean between 64W and 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. .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 15 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON...E winds 10 to 20 kt. Seas 6 to 8 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...E winds 10 to 20 kt. Seas 6 to 8 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 9 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .SAT...E winds 15 to 20 kt. Seas 6 to 9 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .SUN...E winds 15 to 20 kt. Seas 7 to 10 ft. .SUN NIGHT...E winds 15 to 20 kt. Seas 8 to 11 ft. .MON...E winds 15 to 25 kt. Seas 8 to 11 ft. .MON NIGHT...E winds 15 to 20 kt. Seas 8 to 11 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .SAT...E winds 10 to 20 kt. Seas 6 to 9 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .SUN...E winds 10 to 20 kt. Seas 7 to 10 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. .MON...E winds 10 to 20 kt. Seas 8 to 11 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS .SYNOPSIS...Rapidly intensifying low pres system moving north of the area is producing a large area of gale force winds N of 27N between 68W and 78W. The low will continue to rapidly deepen and generate large NW swell. Trailing cold front extending SSW across the central Bahamas to east-central Cuba and will shift SE and reach from Bermuda to Windward Passage tonght, then drift SE and stall through Sat. ATLC waters from 27N to 31N W of 77W ...GALE WARNING... .TODAY...W winds 20 to 30 kt. Seas 9 to 14 ft. .TONIGHT...NW winds 15 to 25 kt. Seas 7 to 10 ft. .FRI...NW winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...N winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...N winds 10 to 15 kt, shifting to NE 15 to 25 kt after midnight. Seas 5 to 7 ft. .SUN...NE winds 15 to 25 kt. Seas 7 to 10 ft. .SUN NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft. .MON...SE winds 15 to 25 kt. Seas 7 to 10 ft. .MON NIGHT...S winds 10 to 20 kt. Seas 7 to 10 ft. ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W ...GALE WARNING... .TODAY...W of 70W, W winds 25 to 35 kt, diminishing to 20 to 25 kt late. Elsewhere, W winds 20 to 30 kt. Seas 13 to 18 ft. .TONIGHT...W winds 15 to 25 kt. Seas 12 to 17 ft. .FRI...NW winds 10 to 20 kt W of 70W, and W 15 to 25 kt elsewhere. Seas 9 to 14 ft W of 70W, and 12 to 17 ft elsewhere. .FRI NIGHT...NW winds 10 to 15 kt. Seas 8 to 11 ft W of 70W, and 9 to 14 ft elsewhere. .SAT...N winds 10 to 15 kt. Seas 7 to 10 ft. .SAT NIGHT...N winds 10 to 20 kt. Seas 7 to 10 ft. .SUN...NE winds 15 to 25 kt. Seas 8 to 11 ft. .SUN NIGHT...NE winds 15 to 25 kt. Seas 8 to 11 ft. .MON...E winds 15 to 25 kt. Seas 8 to 11 ft. .MON NIGHT...SE winds 10 to 20 kt. Seas 7 to 10 ft. Bahamas N of 22N .TODAY...NW winds 15 to 25 kt. Seas 5 to 7 ft. .TONIGHT...NW winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...N winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...NE winds 15 to 25 kt. Seas 4 to 6 ft. .SAT NIGHT...NE winds 15 to 25 kt. Seas 4 to 6 ft. .SUN...NE winds 15 to 25 kt. Seas 5 to 7 ft. .SUN NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. .MON...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...NW winds 15 to 25 kt W of 70W, and SW 10 to 20 kt elsewhere. Seas 8 to 11 ft. .TONIGHT...NW winds 10 to 15 kt. Seas 8 to 11 ft. .FRI...N winds 10 to 15 kt. Seas 8 to 11 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 8 to 11 ft. .SAT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .SUN...NE winds 15 to 25 kt. Seas 8 to 12 ft. .SUN NIGHT...E winds 15 to 25 kt. Seas 9 to 12 ft. .MON...E winds 15 to 25 kt. Seas 9 to 12 ft. .MON NIGHT...SE winds 10 to 20 kt. Seas 8 to 10 ft. ATLC waters S of 22N W of 65W .TODAY...SW winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...NE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .SAT...E winds 15 to 25 kt. Seas 6 to 9 ft. .SAT NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft. .SUN...E winds 15 to 25 kt. Seas 6 to 9 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .MON...E winds 10 to 20 kt. Seas 7 to 10 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 to 9 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 20 kt. Seas 7 to 10 ft. .FRI...SE winds 10 to 15 kt. Seas 7 to 9 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 8 to 9 ft. .SAT...E winds 10 to 20 kt. Seas 9 to 10 ft. .SAT NIGHT...SE winds 15 to 20 kt. Seas 9 to 11 ft. .SUN...E winds 15 to 20 kt. Seas 9 to 11 ft. .SUN NIGHT...E winds 15 to 20 kt. Seas 9 to 10 ft. .MON...E winds 15 to 20 kt. Seas 9 to 11 ft. .MON NIGHT...E winds 15 to 20 kt. Seas 9 to 10 ft.