000 FZNT31 KNHC 122046 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 346 PM EST Thu Dec 12 2024 Marine Weather HF Voice Broadcast for the Tropical N Atlantic from 07N to 19N W of 55W, the N Atlantic from 19N to 31N W of 55W including the 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 W of 55W .SYNOPSIS...A stationary front extends from central Cuba to northern Honduras producing scattered showers in the Bay of Campeche. Tight pressure gradient between the aforementioned front and a strong ridge in the Gulf sustains fresh to strong N-NE winds and rough seas behind the frontal boundary. The strong ridge will support fresh to strong NE winds and moderate to rough seas in the NW Caribbean and the Windward Passage through Sun morning. Afterward, moderate to fresh NE winds will further diminish to gentle to moderate speeds by Mon afternoon as the broad high pressure shift NE and then eastward to the north- central Atlantic waters. The high pressure will also support fresh to strong NE winds over the central and SW Caribbean through Sat morning. Moderate to fresh NE winds over the E Caribbean will diminish on Fri as a surface trough enters the region. Otherwise, the front is expected to dissipate tonight into Fri morning. NW Caribbean W of 85W .TONIGHT...NE winds 15 to 25 kt. Seas 7 to 10 ft. .FRI...NE winds 10 to 20 kt. Seas 6 to 9 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .SAT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .SUN...NE winds 10 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .MON...NE winds 10 to 20 kt. Seas 6 to 8 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 5 ft. .TUE NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. Caribbean N of 15N between 72W and 85W .TONIGHT...NE winds 10 to 20 kt S of 18N, and NE 15 to 25 kt elsewhere. Seas 6 to 8 ft. .FRI...NE winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...NE winds 10 to 20 kt S of 18N, and NE 15 to 25 kt elsewhere. Seas 6 to 8 ft. .SAT...NE winds 10 to 20 kt S of 18N, and NE 15 to 25 kt elsewhere. Seas 6 to 8 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SUN...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...NE 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 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 4 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Caribbean from 11N to 15N W of 72W .TONIGHT...NE winds 15 to 25 kt within 90 nm of coast of Colombia, and NE 10 to 20 kt elsewhere. Seas 6 to 8 ft. .FRI...E winds 15 to 25 kt within 90 nm of coast of Colombia, and NE 10 to 20 kt elsewhere. Seas 6 to 8 ft. .FRI NIGHT...NE winds 15 to 25 kt within 90 nm of coast of Colombia, and NE 10 to 20 kt elsewhere. Seas 6 to 8 ft. .SAT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SUN...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .MON...NE winds less than 10 kt. Seas 3 to 4 ft. .MON NIGHT...NE 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. SW Caribbean S of 11N .TONIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .FRI...NE winds 10 to 20 kt. Seas 6 to 9 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .SAT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SUN...N winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 5 to 6 ft. .SUN NIGHT...N winds less than 10 kt. Seas 4 to 5 ft. .MON...N winds less than 10 kt. Seas 3 to 4 ft. .MON NIGHT...N winds less than 10 kt. Seas 3 to 4 ft. .TUE...N winds less than 10 kt. Seas 3 to 5 ft. .TUE NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. Caribbean between 64W and 72W .TONIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...NE winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .FRI NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Gulf of Venezuela, seas 3 ft in the morning, subsiding to 2 ft or less. Elsewhere, seas 4 to 6 ft. .SAT NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .SUN...SE winds less than 10 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON...E winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...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 20 kt. Seas 4 to 5 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TONIGHT...N winds less than 10 kt, shifting to SW after midnight. Seas 5 to 7 ft. .FRI...SE winds less than 10 kt. Seas 4 to 6 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...SE winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .SUN...E winds 10 to 15 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 7 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 6 to 8 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TONIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .FRI...E winds less than 10 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SUN...E winds 10 to 15 kt. Seas 5 to 7 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 7 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 5 to 7 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A cold front extending from 31N70W to the central Bahamas and into central Cuba will stall from 31N67W to the eastern Bahamas this evening and dissipate tonight into early Fri. Fresh to strong northerly winds and rough seas affecting the Florida offshore waters, and the northern and central Bahamas will prevail and expand in areal coverage through the weekend as strong high pressure building in the wake of the front will tighten the pressure gradient against an approaching surface trough from the east. Frequent gust to gale force winds are likely over the northern Bahamas offshore waters Sat through Sun. Winds will start to gradually weaken across the region Sun night into Mon. ATLC waters from 27N to 31N W of 77W .TONIGHT...NE winds 15 to 20 kt. Seas 7 to 10 ft. .FRI...NE winds 20 to 25 kt. Seas 7 to 9 ft. .FRI NIGHT...NE winds 20 to 25 kt. Seas 9 to 12 ft. .SAT...NE winds 20 to 30 kt. Seas 11 to 15 ft. .SAT NIGHT...E winds 20 to 30 kt. Seas 14 to 16 ft. .SUN...E winds 15 to 25 kt. Seas 14 to 16 ft. .SUN NIGHT...E winds 15 to 25 kt. Seas 12 to 15 ft. .MON...E winds 15 to 25 kt. Seas 12 to 15 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 10 to 13 ft. .TUE...E winds 10 to 15 kt. Seas 8 to 11 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 7 to 9 ft. ATLC waters from 27N to 31N between 65W and 77W .TONIGHT...NE winds 15 to 25 kt W of 70W, and NE 10 to 20 kt elsewhere. Seas 8 to 11 ft W of 70W, and 6 to 9 ft elsewhere. .FRI...NE winds 15 to 25 kt. Seas 8 to 11 ft. .FRI NIGHT...NE winds 20 to 30 kt. Seas 10 to 15 ft. .SAT...NE winds 20 to 30 kt. Seas 13 to 17 ft. .SAT NIGHT...NE winds 20 to 30 kt. Seas 14 to 18 ft. .SUN...NE winds 20 to 30 kt. Seas 14 to 17 ft. .SUN NIGHT...E winds 20 to 25 kt. Seas 14 to 17 ft. .MON...E winds 15 to 25 kt. Seas 12 to 15 ft. .MON NIGHT...E winds 15 to 25 kt. Seas 10 to 14 ft. .TUE...E winds 10 to 20 kt. Seas 8 to 11 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. Bahamas N of 22N .TONIGHT...NE winds 15 to 25 kt. Seas 5 to 7 ft. .FRI...NE winds 15 to 25 kt. Seas 5 to 7 ft. .FRI NIGHT...NE winds 15 to 25 kt. Seas 6 to 8 ft. .SAT...NE winds 15 to 25 kt. Seas 7 to 10 ft. .SAT NIGHT...NE winds 15 to 25 kt. Seas 8 to 11 ft. .SUN...NE winds 15 to 25 kt. Seas 8 to 11 ft. .SUN NIGHT...NE winds 15 to 25 kt. Seas 7 to 10 ft. .MON...NE winds 10 to 20 kt. Seas 7 to 10 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TONIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .FRI...NE winds 15 to 25 kt. Seas 8 to 12 ft. .FRI NIGHT...NE winds 20 to 25 kt. Seas 10 to 14 ft. .SAT...NE winds 20 to 30 kt W of 70W, and E 15 to 25 kt elsewhere. Seas 11 to 16 ft. .SAT NIGHT...E winds 15 to 25 kt. Seas 12 to 17 ft. .SUN...E winds 15 to 25 kt. Seas 11 to 16 ft. .SUN NIGHT...E winds 15 to 25 kt. Seas 10 to 15 ft. .MON...E winds 15 to 25 kt. Seas 9 to 14 ft. .MON NIGHT...E winds 15 to 25 kt. Seas 9 to 13 ft. .TUE...E winds 15 to 20 kt. Seas 9 to 12 ft. .TUE NIGHT...E winds 15 to 20 kt. Seas 9 to 10 ft. ATLC waters S of 22N W of 65W .TONIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .FRI...NE winds 10 to 20 kt. Seas 6 to 9 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 8 to 11 ft. .SAT...NE winds 10 to 20 kt. Seas 8 to 11 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. .SUN...E winds 10 to 15 kt. Seas 7 to 10 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft. .MON...E winds 10 to 15 kt. Seas 6 to 8 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. ATLC waters from 19N to 22N between 55W and 65W .TONIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft. .FRI...SE winds 10 to 15 kt. Seas 7 to 10 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 7 to 10 ft. .SAT...SE winds 10 to 20 kt. Seas 7 to 10 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .SUN...E winds 10 to 20 kt. Seas 8 to 10 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 8 ft. .MON...E winds 10 to 15 kt. Seas 7 to 8 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 7 to 8 ft. .TUE...E winds 10 to 15 kt. Seas 7 to 8 ft. .TUE NIGHT...E winds 15 to 20 kt. Seas 7 to 9 ft.