000 FZNT31 KNHC 201509 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1009 AM EST Mon Nov 20 2017 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...Broad low pressure and troughing over the central Caribbean will weaken by Tue night. A cold front will enter the NW Caribbean on Thu night enhancing winds/seas. NW Caribbean W of 85W .TODAY...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .TONIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. .TUE...Variable winds less than 10 kt. Seas 3 to 4 ft. .TUE NIGHT...N winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 3 to 4 ft. .WED...Variable winds less than 10 kt. Seas 3 ft. .WED NIGHT...NW winds less than 10 kt. Seas 2 ft or less. .THU...W winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...NW winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...NW winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 5 ft. Caribbean N of 15N between 72W and 85W .TODAY...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .TUE NIGHT...E winds 10 to 15 kt S of 18N, and NE less than 10 kt elsewhere. Seas 3 to 4 ft. .WED...NE winds less than 10 kt. Seas 3 ft. .WED NIGHT...NE winds less than 10 kt. Seas 3 ft. .THU...N winds less than 10 kt. Seas 3 ft. .THU NIGHT...N winds less than 10 kt. Seas 3 ft. .FRI...N winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .FRI NIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 5 ft. Caribbean from 11N to 15N W of 72W .TODAY...NE winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...NE winds 10 to 15 kt within 90 nm of coast of Colombia, and NE less than 10 kt elsewhere. Seas 3 ft. .TUE...E winds 10 to 15 kt within 90 nm of coast of Colombia, and E less than 10 kt elsewhere. Seas 3 to 4 ft. .TUE NIGHT...E winds 10 to 15 kt within 90 nm of coast of Colombia, and NE less than 10 kt elsewhere. Seas 3 to 4 ft. .WED...NE winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .THU...NE winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 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. SW Caribbean S of 11N .TODAY...NW winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...N winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. .TUE...W winds less than 10 kt. Seas 2 ft or less. .TUE NIGHT...NW winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 2 ft or less. .WED...Variable winds less than 10 kt, becoming NW less than 10 kt in the afternoon. Seas 2 ft or less. .WED NIGHT...NW winds less than 10 kt. Seas 2 ft or less. .THU...NW winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...NW winds less than 10 kt. Seas 3 ft. .FRI...NW winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...N winds less than 10 kt. Seas 3 to 5 ft. Caribbean between 64W and 72W .TODAY...E winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .WED...E winds 10 to 15 kt. Seas 4 to 5 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .THU...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...E winds less than 10 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .WED...E winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 5 to 7 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 15 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 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. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...E winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...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...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS .SYNOPSIS...A cold front extending from 31N69W to 25N80W will stall over the northern Bahamas today, then weakening and return north as a warm front by mid week. Another cold front will move off the NE Florida coast on Wed, then stall over the far NW waters Thu and Fri. ATLC waters from 27N to 31N W of 77W .TODAY...NE winds 15 to 20 kt. Seas 5 to 7 ft. .TONIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft. .TUE...SE winds 10 to 20 kt. Seas 6 to 8 ft. .TUE NIGHT...SE winds 10 to 15 kt, shifting to W after midnight. Seas 6 to 8 ft. .WED...N winds 10 to 15 kt. Seas 5 to 7 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 5 to 6 ft. .THU...SE winds less than 10 kt. Seas 5 to 7 ft. .THU NIGHT...SE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 6 to 8 ft. .FRI...Variable winds less than 10 kt, becoming E less than 10 kt in the afternoon. Seas 6 to 8 ft. .FRI NIGHT...S winds less than 10 kt. Seas 6 to 8 ft. ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W .TODAY...N winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...E winds 15 to 25 kt W of 70W, and NE 15 to 25 kt elsewhere. Seas 7 to 10 ft. .TUE...E winds 15 to 25 kt. Seas 7 to 10 ft. .TUE NIGHT...SE winds 15 to 25 kt. Seas 8 to 11 ft. .WED...SW winds 15 to 25 kt. Seas 8 to 11 ft. .WED NIGHT...NW winds 10 to 20 kt. Seas 7 to 10 ft. .THU...NE winds less than 10 kt. Seas 6 to 8 ft. .THU NIGHT...Variable winds less than 10 kt. Seas 6 to 7 ft. .FRI...Variable winds less than 10 kt, becoming S less than 10 kt in the afternoon. Seas 6 to 7 ft. .FRI NIGHT...S winds less than 10 kt. Seas 5 to 7 ft. Bahamas N of 22N .TODAY...NE winds 10 to 20 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .WED...Variable winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...Variable winds less than 10 kt. Seas 3 ft. .THU...S winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...SW winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .FRI...SW winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...W of 70W, NE winds 10 to 20 kt. Elsewhere, E winds less than 10 kt, shifting to NE in the afternoon. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...SE winds 10 to 20 kt W of 70W, and SE 15 to 25 kt elsewhere. Seas 7 to 10 ft. .WED...S winds 10 to 20 kt. Seas 7 to 10 ft. .WED NIGHT...SW winds 10 to 15 kt. Seas 6 to 9 ft. .THU...S winds less than 10 kt. Seas 5 to 7 ft. .THU NIGHT...Variable winds less than 10 kt. Seas 5 to 6 ft. .FRI...S winds less than 10 kt. Seas 5 to 6 ft. .FRI NIGHT...Variable winds less than 10 kt, becoming SE 10 kt after midnight. Seas 5 to 6 ft. ATLC waters S of 22N W of 65W .TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 20 kt. Seas 4 to 5 ft. .TUE...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .WED...SE winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft. .THU...SE winds less than 10 kt. Seas 3 to 5 ft. .THU NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .FRI...SE winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...SE winds less than 10 kt. Seas 5 to 7 ft. .TONIGHT...E winds less than 10 kt, increasing to 10 to 20 kt after midnight. Seas 6 to 8 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .WED...E winds 15 to 20 kt. Seas 7 to 10 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 7 to 9 ft. .THU...E winds 10 to 15 kt. Seas 6 to 8 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 6 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 6 ft.