186 FZNT31 KNHC 011446 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 946 AM EST Wed Jan 1 2020 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...High pressure north of the area will maintain fresh to occasionally strong trades off Colombia through the remainder of the week and the weekend. A cold front will move through the Yucatan Channel into the NW Caribbean Sat, followed by an increase in winds and seas. The front will reach from eastern Cuba to Nicaragua by Sun afternoon. NW Caribbean W of 85W .TODAY...E winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...E winds less than 10 kt, shifting to SE after midnight. Seas 2 ft or less, building to 3 ft after midnight. .THU...SE winds 10 to 20 kt. Seas 3 to 5 ft. .THU NIGHT...SE winds 15 to 25 kt. Seas 5 to 7 ft. .FRI...SE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...N winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...N winds 15 to 25 kt. Seas 6 to 8 ft. .SUN...N winds 10 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. Caribbean N of 15N between 72W and 85W .TODAY...E winds 10 to 15 kt S of 18N, and E less than 10 kt elsewhere. Seas 3 to 4 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...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...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...NE winds 15 to 25 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. Caribbean from 11N to 15N W of 72W .TODAY...E winds 15 to 20 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. .TONIGHT...E winds 20 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. .THU...E winds 15 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. .THU NIGHT...E winds 20 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. .FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...NE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. SW Caribbean S of 11N .TODAY...NE winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .THU...NE 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, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .FRI NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft. .SAT...N winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...NE winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. Caribbean between 64W and 72W .TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. .THU...E winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. .THU NIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 5 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...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .SUN NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .THU NIGHT...E winds less than 10 kt, shifting to NE after midnight. Seas 4 to 6 ft. .FRI...NE winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .SUN NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 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...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...NE winds 10 to 15 kt, shifting to E in the afternoon. Seas 5 to 7 ft. .SAT NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 6 ft. .SUN...E winds less than 10 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A cold front extending from near 31N69W to the Florida Straits will stall and weaken along roughly 25N by Thu afternoon, and then dissipate Fri. A new, stronger, cold front is forecast to move off the NE Florida coast by late Fri into early Sat, followed closely by a reinforcing front by early Sat afternoon. The fronts will merge and reach from near Bermuda to E Cuba by Sun afternoon. Winds to gale force are possible both ahead and behind the cold fronts Sat into Sun over the waters north of 28N. ATLC waters from 27N to 31N W of 77W ...GALE CONDITIONS POSSIBLE... .TODAY...NW winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...NW winds 10 kt in the evening, becoming variable winds less than 10 kt. Seas 3 to 5 ft. .THU...Variable winds less than 10 kt, becoming S 10 kt in the afternoon. Seas 3 to 4 ft. .THU NIGHT...S winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...S winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...S winds 15 to 25 kt. Seas 7 to 10 ft. .SAT...SW winds 20 to 30 kt increasing to 30 to 35 kt late. Seas 6 to 9 ft. .SAT NIGHT...SW to W winds 25 to 35 kt, shifting to W to NW 30 to 35 kt late. Seas 8 to 12 ft. .SUN...NW winds 15 to 25 kt. Seas 9 to 14 ft, subsiding to 7 to 10 ft in the afternoon. .SUN NIGHT...NW winds 10 to 15 kt. Seas 5 to 7 ft. ATLC waters from 27N to 31N between 65W and 77W ...GALE CONDITIONS POSSIBLE... .TODAY...W winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...W of 70W, NW winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Elsewhere, W winds 10 to 15 kt. Seas 5 to 7 ft. .THU...W of 70W, N winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Elsewhere, N winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...W of 70W, SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Elsewhere, E winds less than 10 kt. Seas 4 to 6 ft. .FRI...SE winds less than 10 kt, shifting to S in the afternoon. Seas 4 to 5 ft. .FRI NIGHT...S winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...S winds 10 to 20 kt. Seas 6 to 9 ft. .SAT NIGHT...SW to W winds 20 to 30 kt increasing to 30 to 35 kt N of 28N. Seas 7 to 11 ft. .SUN...W winds 20 to 30 kt. Seas 10 to 15 ft. .SUN NIGHT...NW winds 10 to 20 kt. Seas 10 to 15 ft, subsiding to 8 to 11 ft after midnight. Bahamas N of 22N .TODAY...NE winds less than 10 kt. Seas 3 ft. .TONIGHT...E winds less than 10 kt. Seas 3 ft. .THU...E winds 10 to 15 kt, shifting to SE in the afternoon. Seas 3 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 ft. .FRI...SE winds 10 to 15 kt. Seas 3 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 3 ft. .SAT...S winds 10 to 15 kt. Seas 3 ft. .SAT NIGHT...W winds 10 to 20 kt. Seas 3 to 5 ft. .SUN...N winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...W winds less than 10 kt. Seas 4 to 5 ft. .TONIGHT...N winds less than 10 kt. Seas 4 to 5 ft. .THU...NE winds less than 10 kt. Seas 4 to 5 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 5 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. .SAT...SE winds 10 to 15 kt. Seas 4 to 5 ft. .SAT NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...W winds 10 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. ATLC waters S of 22N W of 65W .TODAY...E winds less than 10 kt. Seas 3 to 5 ft. .TONIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .SAT NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .SUN...Variable winds less than 10 kt, becoming N less than 10 kt in the afternoon. Seas 3 to 4 ft. .SUN NIGHT...N winds 10 to 20 kt. Seas 3 to 5 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 kt. Seas 5 to 6 ft. .THU...E winds less than 10 kt. Seas 5 to 6 ft. .THU NIGHT...NE winds less than 10 kt. Seas 5 to 6 ft. .FRI...NE winds 10 to 15 kt. Seas 5 to 6 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SUN...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 5 to 7 ft. .SUN NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.