000 FZNT31 KNHC 311505 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1005 AM EST Sun Dec 31 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...Fresh winds over the SE and S central waters will become strong within 60 nm off NW Colombia tonight. Moderate trades will prevail elsewhere in the Caribbean. Fresh to strong trades over the tropical Atlantic waters will support seas to 8 ft E of the Windward Islands through Thu night. A cold front will enter the western Caribbean Tue morning. Fresh to strong winds will develop between Cuba and Panama in the wake of this front on Thu. NW Caribbean W of 85W .TODAY...E winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .MON...NE winds less than 10 kt. Seas 3 to 4 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...N winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .WED...N winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. .THU...N winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 4 to 6 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. .MON...NE winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .WED...NE winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. .THU...N winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. Caribbean from 11N to 15N W of 72W .TODAY...NE winds 15 to 20 kt within 90 nm of coast of Colombia, and NE 10 to 20 kt elsewhere. Seas 4 to 6 ft. .TONIGHT...NE winds 15 to 20 kt within 90 nm of coast of Colombia, and NE 10 to 20 kt elsewhere. Seas 5 to 7 ft. .MON...NE winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .TUE...NE winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .THU...NE winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 15 to 25 kt. Seas 6 to 8 ft. SW Caribbean S of 11N .TODAY...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .MON...N winds 10 to 15 kt. Seas 5 to 7 ft. .MON NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...N winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .TUE NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .WED...NE winds 10 to 15 kt, shifting to W in the afternoon. Seas 3 to 5 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. .THU...N winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. Caribbean between 64W and 72W .TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .MON...E winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 4 to 6 ft. .TUE...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 15 kt. 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. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .MON...E winds 10 to 15 kt. Seas 5 to 7 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...E winds 10 to 15 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 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. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...E winds 10 to 20 kt. Seas 6 to 8 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .MON...E winds 10 to 20 kt. Seas 6 to 8 ft. .MON NIGHT...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 20 kt. Seas 5 to 7 ft. .WED...E winds 10 to 15 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 20 kt. Seas 5 to 7 ft. SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS .SYNOPSIS...A strong cold front will head SE from Florida on Mon morning, then reach from 31N65W to the Florida Straits by Tue morning. A strong low pres area is expected to rapidly develop along the front just NE of the Bahamas Wed evening. Gales are likely over the waters N of 27N Wed night and Thu. ATLC waters from 27N to 31N W of 77W ...GALE CONDITIONS POSSIBLE WED NIGHT... .TODAY...NW winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .MON...N winds 10 to 20 kt, increasing to 20 to 30 kt in the afternoon. Seas 6 to 9 ft. .MON NIGHT...NE winds 20 to 30 kt. Seas 8 to 11 ft, building to 9 to 14 ft after midnight. .TUE...NE winds 20 to 30 kt. Seas 10 to 14 ft. .TUE NIGHT...NE winds 15 to 25 kt. Seas 9 to 14 ft, subsiding to 8 to 11 ft after midnight. .WED...NE winds 15 to 25 kt. Seas 8 to 11 ft. .WED NIGHT...NW winds 25 to 35 kt. Seas 8 to 12 ft. .THU...NW winds 20 to 25 kt. Seas 8 to 11 ft. .THU NIGHT...NW winds 15 to 25 kt. Seas 6 to 9 ft. ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W ...GALE CONDITIONS POSSIBLE WED NIGHT... .TODAY...W winds 10 to 20 kt W of 70W, and SW less than 10 kt elsewhere. Seas 4 to 6 ft. .TONIGHT...W winds 10 to 20 kt. Seas 5 to 7 ft. .MON...NW winds 10 to 15 kt. Seas 6 to 9 ft. .MON NIGHT...W of 70W, N winds 20 to 30 kt. Elsewhere, NW winds less than 10 kt, shifting to SW after midnight. Seas 8 to 11 ft W of 70W, and 6 to 9 ft elsewhere. .TUE...N winds 20 to 30 kt. Seas 8 to 13 ft. .TUE NIGHT...NE winds 20 to 30 kt. Seas 9 to 14 ft. .WED...E winds 15 to 25 kt. Seas 8 to 12 ft. .WED NIGHT...N of 29N S winds 25 to 35 kt becoming SW by dawn. SW winds 20 to 30 kt. Seas 9 to 14 ft. .THU...W winds 20 to 30 kt. Seas 11 to 16 ft. .THU NIGHT...W winds 15 to 25 kt. Seas 10 to 15 ft. Bahamas N of 22N .TODAY...N winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...NE winds less than 10 kt. Seas 3 ft. .MON...E winds less than 10 kt. Seas 2 to 3 ft. .MON NIGHT...NE winds less than 10 kt. Seas 2 ft or less. .TUE...N winds less than 10 kt, increasing to 10 to 20 kt in the afternoon. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .WED...S winds less than 10 kt, becoming W 10 to 20 kt in the afternoon. Seas 5 to 7 ft. .WED NIGHT...NW winds 15 to 25 kt. Seas 5 to 7 ft. .THU...NW winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...NW 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 5 to 6 ft. .TONIGHT...N winds 10 to 15 kt W of 70W, and SW less than 10 kt elsewhere. Seas 4 to 5 ft. .MON...N winds less than 10 kt. Seas 4 to 5 ft. .MON NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft. .TUE...E winds less than 10 kt. Seas 5 to 7 ft, building to 8 to 11 ft in the afternoon. .TUE NIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. .WED...SE winds 10 to 15 kt. Seas 8 to 11 ft. .WED NIGHT...SW winds 15 to 25 kt. Seas 7 to 10 ft. .THU...W winds 15 to 25 kt. Seas 7 to 10 ft. .THU NIGHT...NW winds 10 to 15 kt. Seas 7 to 10 ft. ATLC waters S of 22N W of 65W .TODAY...E winds less than 10 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...E 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 less than 10 kt, shifting to SE after midnight. Seas 3 to 5 ft. .WED...S winds less than 10 kt. Seas 4 to 6 ft. .WED NIGHT...S winds less than 10 kt, shifting to SW after midnight. Seas 4 to 6 ft. .THU...W winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...E winds 10 to 15 kt. Seas 6 to 8 ft. .TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .MON...E winds 10 to 15 kt. Seas 5 to 6 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. .TUE...E winds 10 to 15 kt. Seas 5 to 6 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .WED...SE winds 10 to 15 kt. Seas 6 to 7 ft. .WED NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft. .THU...SE winds 10 to 15 kt. Seas 6 to 8 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft.