000 FZNT31 KNHC 311404 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 904 AM EST Wed Jan 31 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 frontal trough extending southwest from eastern Cuba to northeast Guatemala will gradually dissipate through Thu night. The pressure gradient between Atlantic high pressure and persistent low pressure over northwest Colombia will support nocturnal gale force winds along the northwest coast of Colombia tonight, and again on Thu night, with maximum seas of 15 ft. The pressure gradient will relax over the upcoming weekend. A cold front will stall across the Yucatan Channel on Mon. NW Caribbean W of 85W .TODAY...NE winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .THU...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...NE winds 10 to 15 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 4 to 6 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 5 ft. Caribbean N of 15N between 72W and 85W .TODAY...NE winds 10 to 20 kt S of 18N, and NE 15 to 25 kt elsewhere. 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 S of 18N, and 4 to 6 ft elsewhere. .FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 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. Caribbean from 11N to 15N W of 72W ...GALE WARNING... .TODAY...NE to E winds 20 to 25 kt. Seas 11 to 13 ft in NE to E swell. .TONIGHT...NE to E winds 25 to 35 kt Within 90 nm of coast of Colombia, and NE to E 20 to 30 kt elsewhere. Seas 12 to 14 ft in NE to E swell. .THU...NE to E winds 25 to 35 kt Within 90 nm of coast of Colombia, and NE to E 20 to 30 kt elsewhere. Seas 12 to 16 ft in NE to E swell. .THU NIGHT...NE to E winds 25 to 35 kt Within 90 nm of coast of Colombia, and NE to E 20 to 25 kt elsewhere. Seas 12 to 14 ft in NE to E swell. .FRI...NE winds 15 to 25 kt. Seas 8 to 11 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .SAT...E winds 10 to 20 kt. Seas 7 to 10 ft. .SAT NIGHT...NE winds 15 to 25 kt. Seas 7 to 10 ft. .SUN...E winds 15 to 25 kt. Seas 7 to 10 ft. .SUN NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft. SW Caribbean S of 11N ...GALE WARNING... .TODAY...NE winds 15 to 25 kt. Seas 8 to 12 ft. .TONIGHT...NE winds 20 to 35 kt. Seas 12 to 14 ft in NE swell. .THU...NE winds 15 to 25 kt. Seas 9 to 14 ft. .THU NIGHT...NE winds 15 to 25 kt. Seas 8 to 13 ft. .FRI...NE winds 10 to 20 kt. Seas 8 to 11 ft. .FRI NIGHT...NE winds 15 to 25 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 10 to 20 kt. Seas 7 to 10 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. Caribbean between 64W and 72W .TODAY...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 6 to 8 ft. .TONIGHT...E winds 20 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 6 to 8 ft. .THU...E winds 20 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 6 to 8 ft. .THU NIGHT...E winds 20 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 6 to 8 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 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. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...NE winds 10 to 15 kt. Seas 6 to 9 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. .THU...NE winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .FRI...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 6 to 8 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. .SAT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 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. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...NE winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .THU...NE winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .FRI...NE winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SUN...E winds 10 to 15 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS .SYNOPSIS...A stationary front extends southwest from 27N65W to east Cuba. Remnants of the front will lift north across the Bahamas on Thu night ahead of a second cold front moving southeast off the northeast Florida coast on Fri morning. This second cold front will reach from Bermuda to 24N80W on Sat, then stall from 25N65W to 23N80W on Sat night, with the frontal remnants lifting north early Sun ahead of a third cold front moving off the northeast Florida coast on Sun night. ATLC waters from 27N to 31N W of 77W .TODAY...NE winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft. .THU...SE winds less than 10 kt. Seas 5 to 7 ft. .THU NIGHT...S winds 10 kt. Seas 4 to 6 ft. .FRI...NW winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...N winds 15 to 20 kt. Seas 5 to 7 ft. .SAT...NE winds 15 to 20 kt. Seas 6 to 8 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SUN...SE winds 10 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...SW winds 15 to 25 kt. Seas 7 to 10 ft. ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W .TODAY...NE winds 10 to 20 kt W of 70W, and N 15 to 25 kt elsewhere. Seas 9 to 12 ft. .TONIGHT...E winds 10 to 15 kt. Seas 8 to 11 ft. .THU...E winds 10 to 15 kt. Seas 6 to 9 ft. .THU NIGHT...S winds less than 10 kt W of 70W, and SE 10 to 15 kt elsewhere. Seas 6 to 8 ft. .FRI...S winds less than 10 kt, shifting to W in the afternoon. Seas 5 to 7 ft. .FRI NIGHT...W winds 10 to 15 kt, shifting to NW 15 to 25 kt after midnight. Seas 6 to 9 ft. .SAT...N winds 15 to 25 kt. Seas 8 to 11 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. .SUN...E winds 10 to 20 kt. Seas 6 to 9 ft. .SUN NIGHT...SE winds 15 to 25 kt. Seas 6 to 9 ft. Bahamas N of 22N .TODAY...NE winds 15 to 25 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 4 to 6 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...NE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. .SAT...NE winds 10 to 20 kt. Seas 4 to 6 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...SE winds 10 to 15 kt. Seas 3 to 5 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...NE winds 15 to 25 kt W of 70W, and NE 10 to 20 kt elsewhere. Seas 7 to 10 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 8 to 10 ft. .THU...E winds 10 to 20 kt. Seas 8 to 10 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft. .FRI...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 6 to 8 ft. .FRI NIGHT...NE winds less than 10 kt. Seas 5 to 7 ft. .SAT...NE winds 10 to 15 kt. Seas 6 to 9 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .SUN...E winds 10 to 20 kt. Seas 6 to 9 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft. ATLC waters S of 22N W of 65W .TODAY...E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .THU...E winds 10 to 20 kt. Seas 6 to 9 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SUN...E winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...NE winds 10 kt. Seas 7 to 8 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 6 to 7 ft. .THU...NE winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .FRI...NE winds 10 to 20 kt. Seas 7 to 9 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 7 to 8 ft. .SAT...NE winds 10 to 15 kt. Seas 6 to 7 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 6 to 7 ft. .SUN...E winds 15 to 20 kt. Seas 7 to 8 ft. .SUN NIGHT...E winds 15 to 20 kt. Seas 7 to 8 ft.