000 FZNT31 KNHC 181512 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1012 AM EST Mon Dec 18 2023 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 Atlantic from 07N to 19N between 55W and 64W .SYNOPSIS...A stationary front extends from eastern Cuba to near 11N79W. Fresh to strong NW to N winds and seas of 8 to 10 ft follow the front. The front will reach from central Hispaniola to 11N78W this evening before dissipating across the Caribbean. Fresh to strong northerly winds and seas to 9 ft are expected in the wake of the front through Wed. High pressure will build SE across the western Atlantic Wed night through Fri to produce fresh to strong NE winds in the lee of Cuba and the Windward Passage. At the same time, fresh to locally strong trades are expected in the south-central Caribbean, including the Gulf of Venezuela. NW Caribbean W of 85W .TODAY...NW winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. .TUE...N winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .WED...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .THU...NE winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Caribbean N of 15N between 72W and 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. .TUE...N winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...NE winds 10 to 20 kt S of 18N, and NE 15 to 25 kt elsewhere. Seas 5 to 7 ft. .WED...NE winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...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 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. Caribbean from 11N to 15N W of 72W .TODAY...NE winds less than 10 kt within 90 nm of coast of Colombia, and N 10 to 20 kt elsewhere. Seas 5 to 7 ft. .TONIGHT...N winds 10 to 20 kt. Seas 3 to 5 ft within 90 nm of coast of Colombia, and 5 to 7 ft elsewhere. .TUE...NE winds 10 kt within 90 nm of coast of Colombia, and N 15 to 25 kt elsewhere. Seas 4 to 5 ft within 90 nm of coast of Colombia, and 6 to 8 ft elsewhere. .TUE NIGHT...NE winds 10 to 15 kt within 90 nm of coast of Colombia, and NE 15 to 25 kt elsewhere. Seas 4 to 5 ft within 90 nm of coast of Colombia, and 6 to 8 ft elsewhere. .WED...NE winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .THU...NE winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 6 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. SW Caribbean S of 11N .TODAY...N winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...N winds 15 to 25 kt. Seas 6 to 8 ft. .TUE...N winds 15 to 25 kt. Seas 6 to 9 ft. .TUE NIGHT...N winds 15 to 25 kt. Seas 6 to 9 ft. .WED...N winds 10 to 20 kt. Seas 6 to 9 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 6 to 8 ft. .THU...NE winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...NE winds 10 to 15 kt. Seas 6 to 8 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. Caribbean between 64W and 72W .TODAY...E winds 10 to 15 kt. Seas 3 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .TONIGHT...E winds 10 to 15 kt. Gulf of Venezuela, seas 3 ft in the evening, subsiding to 2 ft or less. Elsewhere, seas 4 to 6 ft. .TUE...E winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .TUE NIGHT...E winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .WED...NE winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...NE winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft. .TUE...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 6 to 9 ft. .TUE NIGHT...E winds less than 10 kt. Seas 6 to 9 ft. .WED...Variable winds less than 10 kt. Seas 6 to 9 ft. .WED NIGHT...NE winds less than 10 kt. Seas 6 to 8 ft. .THU...E winds less than 10 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds less than 10 kt. Seas 5 to 7 ft. .FRI...E winds less than 10 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds less than 10 kt. Seas 5 to 7 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...NE winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 5 to 7 ft. .TUE NIGHT...E winds less than 10 kt. Seas 5 to 7 ft. .WED...E winds less than 10 kt. Seas 5 to 7 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A western Atlantic cold front extends through 31N71W to eastern Cuba near 20N75W. SE to S gale-force winds are ahead of the front N of 26N and E of front to 67W. Behind the front, strong W winds are noted N of 29N. Scattered strong thunderstorms continue along and ahead of the cold front to 68W. Gales ahead of the front will persist through tonight. The front is expected to reach from 31N68W to Haiti this evening, from 31N66W to the N coast of Hispaniola near 19N70W by Tue evening, and from 31N61W to to eastern Hispaniola by Wed evening. Strong high pressure will build into the western Atlantic behind the front Tue night through early Thu to produce fresh to strong winds. ATLC waters from 27N to 31N W of 77W .TODAY...W winds 15 to 25 kt. Seas 10 to 15 ft, subsiding to 8 to 12 ft in the afternoon. .TONIGHT...NW winds 15 to 25 kt. Seas 7 to 10 ft. .TUE...N winds 15 to 20 kt. Seas 7 to 10 ft. .TUE NIGHT...NE winds 15 to 20 kt. Seas 8 to 9 ft. .WED...NE winds 10 to 20 kt. Seas 7 to 9 ft. .WED NIGHT...NE winds 15 to 20 kt. Seas 7 to 9 ft. .THU...NE winds 10 to 15 kt. Seas 7 to 9 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 7 to 9 ft. .FRI...NE winds 10 to 15 kt. Seas 7 to 9 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 7 to 9 ft. ATLC waters from 27N to 31N between 65W and 77W ...GALE WARNING... .TODAY...W of 70W, W winds 15 to 25 kt, diminishing to 10 to 15 kt in the afternoon. Elsewhere, SE winds 30 to 40 kt. Seas 12 to 18 ft. .TONIGHT...W winds 10 to 15 kt W of 70W, and S 20 to 30 kt elsewhere. Seas 10 to 15 ft W of 70W, and 11 to 16 ft elsewhere. .TUE...NW winds 10 to 20 kt. Seas 8 to 12 ft W of 70W, and 10 to 15 ft elsewhere. .TUE NIGHT...W of 70W, N winds 15 to 25 kt. Elsewhere, NW winds 10 to 15 kt, increasing to 15 to 25 kt after midnight. Seas 9 to 12 ft. .WED...N winds 15 to 25 kt. Seas 9 to 13 ft. .WED NIGHT...N winds 15 to 20 kt. Seas 9 to 14 ft. .THU...N winds 15 to 20 kt. Seas 9 to 14 ft. .THU NIGHT...N winds 10 to 20 kt. Seas 10 to 15 ft. .FRI...N winds 10 to 15 kt. Seas 10 to 15 ft. .FRI NIGHT...N winds 10 to 15 kt. Seas 9 to 12 ft. Bahamas N of 22N .TODAY...NW winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...N winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .WED...NE winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...NE winds 15 to 25 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 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 5 to 7 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...W of 70W, SW winds 15 to 25 kt, shifting to W 10 to 15 kt in the afternoon. Elsewhere, SE winds 15 to 25 kt. Seas 9 to 13 ft. .TONIGHT...E winds 10 to 20 kt. Seas 8 to 12 ft. .TUE...NE winds 10 to 20 kt. Seas 8 to 11 ft. .TUE NIGHT...W of 70W, N winds 15 to 25 kt. Elsewhere, S winds 10 to 15 kt, shifting to N 10 to 20 kt after midnight. Seas 8 to 10 ft. .WED...N winds 15 to 25 kt. Seas 9 to 12 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 10 to 13 ft. .THU...N winds 15 to 20 kt. Seas 10 to 12 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 9 to 11 ft. .FRI...NE winds 10 to 15 kt. Seas 9 to 12 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 9 to 11 ft. ATLC waters S of 22N W of 65W .TODAY...SE winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .TUE...NE winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .WED...NE winds 10 to 20 kt. Seas 6 to 9 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .THU...NE winds 10 to 20 kt. Seas 7 to 10 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .FRI...NE winds 10 to 20 kt. Seas 6 to 9 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...E winds 15 to 20 kt. Seas 9 to 11 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 8 to 13 ft. .TUE...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 8 to 13 ft. .TUE NIGHT...NE winds less than 10 kt. Seas 8 to 12 ft. .WED...N winds less than 10 kt. Seas 9 to 11 ft. .WED NIGHT...NW winds less than 10 kt. Seas 8 to 10 ft. .THU...NW winds less than 10 kt. Seas 7 to 9 ft. .THU NIGHT...N winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 7 to 10 ft. .FRI...NE winds 10 to 15 kt. Seas 6 to 9 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 7 to 9 ft.