000 FZNT31 KNHC 211520 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1020 AM EST Mon Dec 21 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...Cold front in the southeast Gulf will enter the NW Caribbean tonight enhancing fresh to strong northerly winds along the Yucatan Channel. The front will weaken into Tue with easterly trades returning across the NW Caribbean. Highest winds and seas will continue to be in the southern Caribbean, near the coast of Colombia, pulsing at nighttime through the forecast period. A strong cold front will slide southward into the NW Caribbean by the end of the week enhancing winds and seas. NW Caribbean W of 85W .TODAY...NE winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...NE 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 less than 10 kt. Seas 3 to 5 ft. .THU...SE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 ft, building to 4 to 6 ft after midnight. .FRI...N winds 15 to 25 kt. Seas 6 to 8 ft. .FRI NIGHT...N winds 15 to 25 kt. Seas 7 to 10 ft. Caribbean N of 15N between 72W and 85W .TODAY...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 ft elsewhere. .TONIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft S of 18N, and 3 to 4 ft elsewhere. .TUE...NE winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .WED...E winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .THU...E winds 10 to 20 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. Seas 4 to 6 ft. .FRI NIGHT...N winds 15 to 25 kt. Seas 5 to 7 ft. Caribbean from 11N to 15N W of 72W .TODAY...E winds 20 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 6 to 9 ft. .TONIGHT...E winds 20 to 25 kt within 90 nm of coast of Colombia, and NE 10 to 20 kt elsewhere. Seas 6 to 9 ft. .TUE...E winds 15 to 25 kt within 90 nm of coast of Colombia, and NE 10 to 20 kt elsewhere. Seas 6 to 9 ft. .TUE NIGHT...E winds 20 to 25 kt within 90 nm of coast of Colombia, and NE 10 to 20 kt elsewhere. Seas 7 to 10 ft. .WED...NE winds 10 to 20 kt. Seas 7 to 10 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .THU...E winds 10 to 20 kt. Seas 6 to 9 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .FRI...NE winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. SW Caribbean S of 11N .TODAY...NE winds 10 to 20 kt. Seas 6 to 8 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...NE winds 10 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .WED...NE winds 10 to 20 kt. Seas 7 to 10 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .THU...NE winds 10 to 20 kt. Seas 6 to 9 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...NE winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. Caribbean between 64W and 72W .TODAY...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .TONIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .TUE...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .TUE NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .WED...E winds 10 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .THU...E winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 20 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, diminishing to less than 10 kt after midnight. Seas 4 to 6 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N 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. .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 10 to 20 kt. Seas 6 to 9 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .THU...E winds 10 to 20 kt. Seas 7 to 10 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. .FRI...E winds 10 to 20 kt. Seas 7 to 10 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 6 to 9 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. .TUE...NE 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 10 to 20 kt. Seas 6 to 9 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .THU...E winds 10 to 20 kt. Seas 7 to 10 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .FRI...E winds 10 to 15 kt. Seas 7 to 10 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A cold front extends from 31N36W to 28N41W, then becomes stationary from that point to 24N59W. This boundary will dissipate within the next 12 to 18 hours. The next cold front will move off the Florida coast today, reach the southern Bahamas and southern Cuba by Tue, and continue moving eastward on Wed. Gale force winds will develop ahead of the front off the Florida coast and north of the Bahamas today. These winds will diminish tonight. By the end of the week, a strong cold front will push off the northeast Florida coast enhancing winds and convection. ATLC waters from 27N to 31N W of 77W .TODAY...W winds 20 to 30 kt, becoming NW 10 to 20 kt in the afternoon. Seas 6 to 9 ft. .TONIGHT...NW winds 10 to 20 kt. Seas 5 to 7 ft. .TUE...N winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...NE 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 10 to 20 kt. Seas 4 to 6 ft. .THU...S winds 15 to 25 kt. Seas 6 to 9 ft. .THU NIGHT...W winds 15 to 25 kt. Seas 8 to 11 ft. .FRI...NW winds 20 to 25 kt. Seas 8 to 11 ft. .FRI NIGHT...NW winds 15 to 25 kt. Seas 7 to 10 ft. ATLC waters from 27N to 31N between 65W and 77W ...GALE WARNING... .TODAY...SW winds 15 to 25 kt W of 70W, and S 10 to 20 kt elsewhere. Seas 8 to 11 ft W of 70W, and 6 to 8 ft elsewhere. .TONIGHT...NW winds 10 to 20 kt W of 70W, and SW 15 to 25 kt elsewhere. Seas 7 to 10 ft. .TUE...NW winds 10 to 15 kt. Seas 6 to 9 ft. .TUE NIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft. .WED...E winds 10 to 15 kt. Seas 6 to 9 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .THU...SE winds 15 to 20 kt. Seas 6 to 9 ft. .THU NIGHT...S winds 10 to 20 kt. Seas 8 to 11 ft. .FRI...SW winds 10 to 20 kt. Seas 8 to 12 ft. .FRI NIGHT...NW winds 15 to 25 kt. Seas 8 to 12 ft. Bahamas N of 22N .TODAY...S winds 10 to 15 kt, shifting to SW in the afternoon. Seas 3 to 5 ft. .TONIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 3 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. .THU...SE winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...SE winds 10 to 15 kt, shifting to S after midnight. Seas 3 to 5 ft. .FRI...NW winds 10 to 15 kt, increasing to 15 to 25 kt in the afternoon. Seas 4 to 6 ft. .FRI NIGHT...N winds 15 to 25 kt. Seas 5 to 7 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...SE winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...S winds less than 10 kt. Seas 5 to 7 ft. .TUE...NE winds 10 to 15 kt W of 70W, and S less than 10 kt elsewhere. Seas 5 to 7 ft. .TUE NIGHT...W of 70W, NE winds 10 to 20 kt. Elsewhere, NE winds less than 10 kt, increasing to 10 to 20 kt after midnight. Seas 6 to 7 ft. .WED...E winds 10 to 20 kt. Seas 6 to 7 ft. .WED NIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft. .THU...E winds 15 to 20 kt. Seas 7 to 9 ft. .THU NIGHT...SE winds 10 to 20 kt. Seas 6 to 9 ft. .FRI...S winds 10 to 15 kt. Seas 6 to 9 ft. .FRI NIGHT...SW winds 10 to 15 kt, shifting to NW 10 to 20 kt after midnight. Seas 7 to 10 ft. ATLC waters S of 22N W of 65W .TODAY...E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...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 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 6 to 9 ft. .THU...E winds 10 to 20 kt. Seas 6 to 9 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 5 to 7 ft. .FRI NIGHT...E winds less than 10 kt, shifting to NE after midnight. Seas 5 to 7 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...E winds 10 to 15 kt. Seas 7 to 8 ft. .TONIGHT...E winds 10 to 15 kt. Seas 7 to 8 ft. .TUE...E winds 10 to 15 kt. Seas 7 to 10 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 8 to 10 ft. .WED...E winds 10 to 20 kt. Seas 8 to 10 ft. .WED NIGHT...E winds 15 to 20 kt. Seas 8 to 10 ft. .THU...E winds 20 kt. Seas 9 to 11 ft. .THU NIGHT...E winds 15 to 20 kt. Seas 10 to 11 ft. .FRI...E winds 10 to 20 kt. Seas 9 to 10 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 8 to 9 ft.