000 FZNT31 KNHC 031440 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 940 AM EST Wed Jan 3 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 stationary front from west-central Cuba across the Cayman Islands to NE Honduras will weaken through Thu. A broad area of low pressure will develop in the SW Caribbean near 10N80W tonight. Reinforcing cold air will support fresh to strong N winds spilling into the SW Caribbean tonight through Sat. Large seas building across the waters east of Nicaragua southward to the northern coast of Panama. 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. .THU...N winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...N winds 10 to 20 kt. Seas 3 to 5 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 15 to 25 kt. Seas 6 to 8 ft. .SUN...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. Caribbean N of 15N between 72W and 85W .TODAY...N winds 10 to 20 kt. Seas 3 to 5 ft. .TONIGHT...NE winds 15 to 25 kt S of 18N, and N 15 to 25 kt elsewhere. Seas 5 to 7 ft. .THU...NE winds 15 to 25 kt S of 18N, and N 15 to 25 kt elsewhere. Seas 5 to 7 ft. .THU NIGHT...NE winds 15 to 25 kt. Seas 5 to 7 ft. .FRI...NE winds 15 to 25 kt. Seas 5 to 7 ft. .FRI NIGHT...NE winds 15 to 25 kt. Seas 5 to 7 ft. .SAT...NE winds 15 to 25 kt. Seas 5 to 7 ft. .SAT NIGHT...NE winds 15 to 25 kt. Seas 6 to 8 ft. .SUN...NE winds 15 to 25 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. Caribbean from 11N to 15N W of 72W .TODAY...E winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...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. .THU...E winds 10 to 15 kt within 90 nm of coast of Colombia, and NE 20 to 30 kt elsewhere. Seas 3 to 5 ft within 90 nm of coast of Colombia, and 6 to 9 ft elsewhere. .THU NIGHT...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 7 to 10 ft. .FRI NIGHT...NE winds 15 to 25 kt. Seas 6 to 9 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 15 to 25 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft. SW Caribbean S of 11N .TODAY...W winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...NW winds 15 to 25 kt. Seas 6 to 8 ft. .THU...N winds 20 to 30 kt. Seas 6 to 8 ft. .THU NIGHT...N winds 15 to 25 kt. Seas 7 to 10 ft. .FRI...NE winds 15 to 25 kt. Seas 7 to 10 ft. .FRI NIGHT...N winds 15 to 25 kt. Seas 7 to 10 ft. .SAT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SUN...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...NE winds 10 to 20 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 3 to 5 ft. .THU...E winds 10 to 20 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .SAT...E winds 10 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...E winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .THU...E winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...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 10 to 20 kt. Seas 7 to 10 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .SUN...E winds 15 to 25 kt. Seas 8 to 11 ft. .SUN NIGHT...E winds 15 to 25 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 5 to 7 ft. .THU...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...E winds 15 to 25 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 15 to 25 kt. Seas 7 to 10 ft. SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS .SYNOPSIS...A frontal boundary extends WSW from 29N65W through the Bahamas to a surface low near Miami. The low will deepen rapidly and drag a strong cold front through the Bahamas as it moves quickly NE. Gale conditions are likely over much of the area north of 27N tonight through Thu night as the system becomes a large storm force low near 31N75W. Seas could peak near 20 ft as the low heads N. Strong winds E of the Bahamas will subside Fri. A cold front trailing the low will stall from 31N57W to Haiti Fri night through Sun. ATLC waters from 27N to 31N W of 77W ...GALE WARNING TODAY AND TONIGHT... .TODAY...E winds 20 to 30 kt, shifting to N 25 to 35 kt in the afternoon. Seas 9 to 14 ft. .TONIGHT...NW winds 25 to 35 kt. Seas 12 to 17 ft. .THU...NW winds 20 to 30 kt. Seas 11 to 16 ft, subsiding to 9 to 13 ft in the afternoon. .THU NIGHT...NW winds 15 to 25 kt. Seas 8 to 11 ft. .FRI...NW winds 10 to 15 kt. Seas 6 to 9 ft. .FRI NIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...N winds 10 to 15 kt. Seas 5 to 6 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 5 to 6 ft. .SUN...E winds 10 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W ...GALE WARNING TODAY... ...STORM WARNING TONIGHT... ...GALE WARNING THU... .TODAY...SE winds 25 to 35 kt W of 70W, and SE 20 to 30 kt elsewhere. W of 70W, seas 8 to 13 ft, building to 11 to 16 ft in the afternoon. Elsewhere, seas 9 to 12 ft. .TONIGHT...N of 30N between 73W and 77W SE winds 45 to 55 kt shifting to SW then decreasing to SW to W 35 to 45 kt by midnight. Elsewhere, W winds 25 to 35 kt W of 70W, and SW 20 to 30 kt elsewhere. Seas 11 to 16 ft W of 70W, and 9 to 14 ft elsewhere. .THU...W winds 25 to 35 kt W of 70W, and W 20 to 30 kt elsewhere. Seas 14 to 19 ft W of 70W, and 12 to 17 ft elsewhere. .THU NIGHT...W winds 15 to 25 kt. Seas 12 to 17 ft. .FRI...NW winds 10 to 20 kt. Seas 10 to 15 ft. .FRI NIGHT...NW winds 10 to 15 kt. Seas 9 to 14 ft. .SAT...N winds 10 to 15 kt. Seas 8 to 11 ft. .SAT NIGHT...N winds 15 to 20 kt. Seas 8 to 11 ft. .SUN...NE winds 15 to 25 kt. Seas 8 to 12 ft. .SUN NIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft. Bahamas N of 22N .TODAY...S winds 10 to 15 kt, shifting to SW 15 to 25 kt in the afternoon. Seas 5 to 7 ft. .TONIGHT...NW winds 15 to 25 kt. Seas 6 to 9 ft. .THU...NW winds 15 to 25 kt. Seas 6 to 8 ft. .THU NIGHT...N 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 10 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...NE winds 15 to 25 kt. Seas 5 to 7 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. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...S winds 10 to 20 kt. Seas 8 to 11 ft. .TONIGHT...W winds 20 to 30 kt W of 70W, and S 15 to 25 kt elsewhere. Seas 9 to 14 ft W of 70W, and 8 to 9 ft elsewhere. .THU...NW winds 20 to 30 kt W of 70W, and W 10 to 20 kt elsewhere. Seas 8 to 13 ft W of 70W, and 7 to 10 ft elsewhere. .THU NIGHT...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 7 to 10 ft. .SAT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .SAT NIGHT...NE winds 15 to 25 kt. Seas 8 to 11 ft. .SUN...NE winds 20 to 30 kt. Seas 10 to 13 ft. .SUN NIGHT...E winds 15 to 25 kt. Seas 11 to 13 ft. ATLC waters S of 22N W of 65W .TODAY...S winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft. .THU...W winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...NE 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 6 to 8 ft. .SAT...E winds 10 to 20 kt. Seas 6 to 9 ft. .SAT NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft. .SUN...E winds 15 to 25 kt. Seas 8 to 11 ft. .SUN NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...SE winds 10 to 20 kt. Seas 6 to 8 ft. .TONIGHT...SE winds 10 to 20 kt. Seas 7 to 9 ft. .THU...SE winds 10 to 20 kt. Seas 8 to 9 ft. .THU NIGHT...SE winds 10 to 20 kt. Seas 7 to 9 ft. .FRI...SE winds 10 to 20 kt. Seas 7 to 9 ft. .FRI NIGHT...SE winds 10 to 20 kt. Seas 8 to 9 ft. .SAT...SE winds 15 to 20 kt. Seas 9 to 11 ft. .SAT NIGHT...SE winds 10 to 20 kt. Seas 9 to 11 ft. .SUN...E winds 10 to 20 kt. Seas 9 to 11 ft. .SUN NIGHT...E winds 15 to 20 kt. Seas 10 to 12 ft.