000 FZNT31 KNHC 180747 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 247 AM EST Sat Dec 18 2021 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 building south through the Atlantic will support fresh to strong trades over the central and eastern Caribbean and tropical N Atlantic this weekend. The high will move east for the start of next week, leading to weaker trades. Large N to NE swell will continue in the tropical N Atlantic as well as Mona and Anegada Passages through Mon. Looking ahead, a cold front may move into the Yucatan Channel Tue. NW Caribbean W of 85W .TODAY...E winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON...SE winds less than 10 kt. Seas 3 to 4 ft. .MON NIGHT...SE winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 3 ft. .TUE...NW winds less than 10 kt. Seas 3 ft. .TUE NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .WED...N winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 4 to 6 ft. Caribbean N of 15N between 72W and 85W .TODAY...E winds 15 to 25 kt S of 18N, and E 10 to 15 kt elsewhere. Seas 6 to 9 ft S of 18N, and 3 to 5 ft elsewhere. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft S of 18N, and 3 to 5 ft elsewhere. .SUN...S of 18N, E winds 10 to 20 kt. Elsewhere, E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 6 to 8 ft S of 18N, and 3 to 5 ft elsewhere. .SUN NIGHT...E winds 10 to 20 kt S of 18N, and NE less than 10 kt elsewhere. Seas 5 to 7 ft S of 18N, and 3 to 4 ft elsewhere. .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...N winds less than 10 kt. Seas 3 ft. .WED...N winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. Caribbean from 11N to 15N W of 72W .TODAY...E winds 15 to 25 kt. Seas 7 to 10 ft. .TONIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft. .SUN...E winds 15 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 7 to 10 ft. .SUN NIGHT...E winds 15 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. 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 15 kt. Seas 4 to 6 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .WED...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. SW Caribbean S of 11N .TODAY...NE winds 10 to 15 kt. Seas 6 to 9 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. .SUN...NE winds 10 to 15 kt. Seas 6 to 8 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .MON...NE winds 10 to 15 kt. Seas 5 to 7 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...N winds less than 10 kt. Seas 3 to 5 ft. .TUE NIGHT...N winds less than 10 kt. Seas 3 to 4 ft. .WED...N winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...N winds less than 10 kt. Seas 3 to 4 ft. Caribbean between 64W and 72W .TODAY...E winds 15 to 25 kt. Seas 3 to 5 ft Gulf of Venezuela, and 7 to 10 ft elsewhere. .TONIGHT...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 7 to 10 ft elsewhere. .SUN...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela, and 6 to 9 ft elsewhere. .SUN NIGHT...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 5 to 7 ft elsewhere. .MON...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 10 to 15 kt. 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 5 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. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...E winds 10 to 20 kt. Seas 8 to 11 ft. .TONIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .SUN...E winds 10 to 20 kt. Seas 7 to 10 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .MON...E winds 10 to 15 kt. Seas 6 to 9 ft. .MON NIGHT...E winds 10 to 20 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 20 kt. Seas 5 to 7 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...NE winds 10 to 20 kt. Seas 7 to 10 ft. .TONIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .SUN...E winds 10 to 20 kt. Seas 6 to 9 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .MON...E winds 10 to 20 kt. Seas 6 to 9 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...E winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .WED...E winds 10 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...High pressure centered NE of the area is inducing a broad area of mainly gentle winds N of 26N. To the south, the gradient between the high and lower pressure over the Caribbean and Tropical Atlantic is causing mainly strong winds, including over and near the Greater Antilles. These conditions will prevail through the weekend, before the high moves to the east and winds relax. A cold front will move off the SE U.S. coast Sun night into Mon, then spread E over the northern waters, bringing strong winds on both sides of it, mainly N of 28N. Low pressure is likely to move NE off the SE U.S. coast Tue into Wed, bringing another potential for strong winds. Large N swell impacting the Atlantic zone from 19N-22N between 55W-65W will diminish on Sun. ATLC waters from 27N to 31N W of 77W .TODAY...S winds 10 to 15 kt. Seas 5 to 6 ft. .TONIGHT...S winds 10 to 15 kt. Seas 5 to 6 ft. .SUN...SW winds 10 to 15 kt. Seas 5 to 6 ft. .SUN NIGHT...NW winds 10 to 15 kt. Seas 5 to 7 ft. .MON...E winds 10 to 20 kt. Seas 6 to 9 ft. .MON NIGHT...SE winds 10 to 20 kt. Seas 6 to 9 ft. .TUE...SW winds 10 to 20 kt. Seas 6 to 7 ft. .TUE NIGHT...W winds 15 to 25 kt. Seas 6 to 8 ft. .WED...NW winds 20 to 25 kt. Seas 7 to 10 ft. .WED NIGHT...NW winds 15 to 25 kt. Seas 8 to 12 ft. ATLC waters from 27N to 31N between 65W and 77W .TODAY...S winds less than 10 kt. Seas 4 to 6 ft. .TONIGHT...S winds 10 to 15 kt W of 70W, and S less than 10 kt elsewhere. Seas 4 to 6 ft. .SUN...S winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. .MON...W winds 10 to 15 kt. Seas 6 to 8 ft. .MON NIGHT...SE winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...S winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...SW winds 10 to 20 kt. Seas 6 to 7 ft. .WED...SW winds 15 to 25 kt. Seas 7 to 9 ft. .WED NIGHT...W winds 15 to 20 kt. Seas 8 to 11 ft. Bahamas N of 22N .TODAY...SE winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .MON...SE winds less than 10 kt. Seas 3 ft. .MON NIGHT...SE winds less than 10 kt. Seas 3 ft. .TUE...S winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. .WED...W winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...E winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .SUN...SE winds 10 to 15 kt. Seas 5 to 7 ft. .SUN NIGHT...SE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 4 to 6 ft. .MON...SE winds less than 10 kt. Seas 4 to 6 ft. .MON NIGHT...SE winds less than 10 kt. Seas 4 to 5 ft. .TUE...S winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...S winds 10 to 15 kt. Seas 5 to 6 ft. .WED...SW winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft. ATLC waters S of 22N W of 65W .TODAY...E winds 10 to 20 kt. Seas 7 to 10 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .SUN...E winds 10 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...SE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .WED...S winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .WED NIGHT...SW winds less than 10 kt. Seas 3 to 5 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...E winds 15 to 20 kt. Seas 8 to 11 ft. .TONIGHT...E winds 15 to 20 kt. Seas 8 to 10 ft. .SUN...E winds 15 to 20 kt. Seas 7 to 9 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .MON...E winds 10 to 15 kt. Seas 6 to 8 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 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 7 ft.