000 FZNT31 KNHC 250256 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 956 PM EST Wed Jan 24 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...Strong to minimal gale force trade winds are forecast along the the NW coast of Colombia during the overnight hours through Mon night. A slow moving cold front will stall on Thu from Central Cuba to Belize and gradually dissipate through Fri. Strengthening high pressure in the wake of the front will produce fresh to locally strong NE winds across the NW Caribbean by late Thu, with strong to near gale force NE flow spreading E across the NE Caribbean on Fri night through Sat. Conditions will improve across the Caribbean from the NW beginning late Sat night. Moderate to fresh trades will continue across the tropical Atlc waters E of the Windwards through Fri night, with strong NE winds forecast on Sat through Sun night. NW Caribbean W of 85W .TONIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .THU...NE winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .FRI...E winds 15 to 25 kt. Seas 6 to 9 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 15 kt. Seas 6 to 9 ft. .SUN...E winds less than 10 kt. Seas 5 to 7 ft. .SUN NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft. .MON...NE winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...NE winds 15 to 25 kt. Seas 7 to 10 ft. Caribbean N of 15N between 72W and 85W .TONIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .THU...NE winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 to 20 kt S of 18N, and NE 15 to 25 kt elsewhere. Seas 5 to 7 ft. .FRI...E winds 15 to 25 kt. Seas 6 to 9 ft. .FRI NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft. .SAT...E winds 15 to 25 kt. Seas 8 to 11 ft. .SAT NIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft. .SUN...E winds 15 to 25 kt. Seas 7 to 10 ft. .SUN NIGHT...E 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 20 kt. Seas 6 to 8 ft. Caribbean from 11N to 15N W of 72W ...GALE WARNING... ...GALE CONDITIONS POSSIBLE... .TONIGHT...NE to E winds 25 to 35 kt within 90 nm of the NW coast of Colombia. Seas 9 to 13 ft. Elsewhere NE to E winds 20 to 25 kt. Seas 8 to 11 ft in E swell. .THU...NE to E winds 20 to 25 kt. Seas 11 to 12 ft. .THU NIGHT...NE to E winds 25 to 35 kt within 90 nm of the NW coast of Colombia. Seas 9 to 13 ft. Elsewhere NE to E winds 20 to 25 kt. Seas 8 to 11 ft in E swell. .FRI...NE to E winds 20 to 25 kt. Seas 11 to 12 ft. .FRI NIGHT...NE to E winds 25 to 35 kt within 90 nm of the NW coast of Colombia. Seas 9 to 13 ft. Elsewhere NE to E winds 20 to 25 kt. Seas 8 to 11 ft in E swell. .SAT...NE to E winds 20 to 30 kt. Seas 12 to 13 ft in N swell. .SAT NIGHT...NE to E winds 25 to 35 kt within 90 nm of the NW coast of Colombia. Seas 9 to 13 ft. Elsewhere NE to E winds 20 to 25 kt. Seas 8 to 11 ft in E swell. .SUN...E winds 20 to 25 kt. Seas 12 to 13 ft. .SUN NIGHT...NE to E winds 25 to 35 kt within 90 nm of the NW coast of Colombia. Seas 9 to 13 ft. Elsewhere NE to E winds 20 to 25 kt. Seas 8 to 11 ft in E swell. .MON...NE to E winds 20 to 25 kt. Seas 11 to 13 ft in N swell. .MON NIGHT...NE to E winds 25 to 35 kt within 90 nm of the NW coast of Colombia. Seas 9 to 13 ft. Elsewhere NE to E winds 20 to 25 kt. Seas 8 to 11 ft in E swell. SW Caribbean S of 11N ...GALE CONDITIONS POSSIBLE... .TONIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .THU...NE winds 10 to 20 kt. Seas 8 to 11 ft. .THU NIGHT...NE winds 15 to 25 kt. Seas 8 to 11 ft. .FRI...NE winds 10 to 20 kt. Seas 8 to 11 ft. .FRI NIGHT...NE winds 25 to 35 kt. Seas 10 to 13 ft in N swell. .SAT...NE winds 15 to 25 kt. Seas 8 to 13 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 8 to 11 ft. .SUN...NE winds 10 to 15 kt. Seas 8 to 11 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .MON...NE winds 10 to 20 kt. Seas 8 to 11 ft. .MON NIGHT...NE winds 10 to 20 kt. Seas 8 to 11 ft. Caribbean between 64W and 72W .TONIGHT...E winds 20 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. .THU...NE winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. .THU NIGHT...E winds 20 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. .FRI...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 3 to 5 ft Gulf of Venezuela, and 6 to 8 ft elsewhere. .FRI NIGHT...NE winds 15 to 25 kt. Seas 6 to 9 ft. .SAT...E winds 15 to 25 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 8 to 11 ft. .MON...E winds 15 to 25 kt. Seas 7 to 10 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .SAT NIGHT...NE winds 15 to 25 kt. Seas 8 to 11 ft. .SUN...E winds 15 to 25 kt. Seas 9 to 13 ft. .SUN NIGHT...E winds 15 to 25 kt. Seas 9 to 14 ft. .MON...E winds 15 to 25 kt. Seas 9 to 14 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 8 to 12 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...NE winds 10 to 15 kt. Seas 4 to 6 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 6 to 9 ft. .SUN...E winds 10 to 20 kt. Seas 6 to 9 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...A cold front extends SW from 31N70W to the NW Bahamas then becomes stationary across the Straits of Florida. The cold front segment will continue SE stalling from 24N65W to NW Cuba on Fri evening with remnants of the front gradually dissipating between 20N and 23N through Sat night. The W portion of the front will lift N as a warm front across the Straits of Florida on Sun night ahead of a surface low racing NE off the NE Florida coast and dragging a cold front E across the Straits of Florida on Mon reaching the Central Bahamas late Mon night. ATLC waters from 27N to 31N W of 77W ...GALE CONDITIONS POSSIBLE... .TONIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. .THU...NE winds 15 to 25 kt. Seas 6 to 8 ft. .THU NIGHT...NE winds 20 to 25 kt. Seas 7 to 10 ft. .FRI...E winds 15 to 25 kt. Seas 7 to 10 ft. .FRI NIGHT...E winds 15 to 25 kt. Seas 8 to 11 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...SE winds 15 to 20 kt. Seas 7 to 10 ft. .SUN NIGHT...S winds 25 to 35 kt. Seas 10 to 11 ft in E swell. .MON...N winds 15 to 25 kt. Seas 8 to 11 ft. .MON NIGHT...N winds 15 to 25 kt. Seas 8 to 11 ft. ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W ...GALE CONDITIONS POSSIBLE... .TONIGHT...SW winds less than 10 kt, shifting to W after midnight. Seas 4 to 5 ft. .THU...N winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 15 to 25 kt. Seas 6 to 9 ft. .FRI...NE winds 20 to 25 kt. Seas 8 to 11 ft. .FRI NIGHT...NE winds 20 to 25 kt. Seas 8 to 12 ft. .SAT...E winds 15 to 25 kt. Seas 8 to 12 ft. .SAT NIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft. .SUN...SE winds 15 to 20 kt. Seas 8 to 11 ft. .SUN NIGHT...SE winds 20 to 25 kt. Seas 8 to 11 ft. .MON...S winds 25 to 35 kt, shifting to W 20 to 30 kt in the afternoon. Seas 12 to 13 ft in E to SE swell. .MON NIGHT...NW winds 15 to 25 kt. Seas 10 to 12 ft. Bahamas N of 22N .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .THU...NE winds 15 to 25 kt. Seas 3 to 5 ft. .THU NIGHT...NE winds 15 to 25 kt. Seas 5 to 7 ft. .FRI...NE winds 20 to 30 kt. Seas 6 to 9 ft. .FRI NIGHT...E winds 20 to 30 kt. Seas 7 to 10 ft. .SAT...E winds 20 to 30 kt. Seas 7 to 10 ft. .SAT NIGHT...E winds 20 to 30 kt. Seas 7 to 10 ft. .SUN...E winds 15 to 25 kt. Seas 6 to 9 ft. .SUN NIGHT...SE winds 10 to 20 kt. Seas 6 to 8 ft. .MON...SW winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...N winds 15 to 25 kt. Seas 5 to 7 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TONIGHT...W of 70W, E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Elsewhere, E winds 10 to 15 kt. Seas 4 to 6 ft. .THU...W of 70W, NE winds 10 to 20 kt. Elsewhere, E winds 10 to 15 kt, shifting to NE in the afternoon. Seas 5 to 7 ft. .THU NIGHT...NE winds 20 to 30 kt W of 70W, and NE 10 to 20 kt elsewhere. Seas 6 to 9 ft W of 70W, and 5 to 7 ft elsewhere. .FRI...NE winds 20 to 30 kt. Seas 8 to 13 ft. .FRI NIGHT...NE winds 20 to 30 kt. Seas 10 to 15 ft. .SAT...E winds 25 to 30 kt. Seas 12 to 15 ft. .SAT NIGHT...E winds 20 to 30 kt. Seas 12 to 15 ft. .SUN...E winds 20 to 25 kt. Seas 11 to 14 ft. .SUN NIGHT...SE winds 20 to 25 kt. Seas 11 to 13 ft. .MON...SE winds 15 to 20 kt. Seas 10 to 12 ft. .MON NIGHT...S winds 10 to 20 kt. Seas 9 to 10 ft. ATLC waters S of 22N W of 65W .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...NE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...NE winds 15 to 25 kt. Seas 6 to 8 ft. .FRI NIGHT...NE winds 20 to 30 kt. Seas 8 to 13 ft. .SAT...E winds 20 to 30 kt. Seas 10 to 15 ft. .SAT NIGHT...E winds 20 to 30 kt. Seas 11 to 16 ft. .SUN...E winds 20 to 30 kt. Seas 10 to 15 ft. .SUN NIGHT...E winds 15 to 25 kt. Seas 9 to 14 ft. .MON...E winds 15 to 25 kt. Seas 8 to 13 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. ATLC waters from 19N to 22N between 55W and 65W .TONIGHT...E winds 10 to 20 kt. Seas 5 to 6 ft. .THU...E winds 10 to 20 kt. Seas 5 to 6 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 5 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...NE winds 15 to 25 kt. Seas 7 to 10 ft. .SAT...NE winds 15 to 25 kt. Seas 8 to 11 ft, building to 9 to 14 ft in the afternoon. .SAT NIGHT...NE winds 20 to 30 kt. Seas 10 to 15 ft. .SUN...E winds 25 to 30 kt. Seas 12 to 15 ft. .SUN NIGHT...E winds 25 kt. Seas 13 to 14 ft. .MON...E winds 20 to 25 kt. Seas 12 to 14 ft. .MON NIGHT...E winds 15 to 20 kt. Seas 10 to 12 ft.