000 FZNT31 KNHC 210247 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 947 PM EST Fri Dec 20 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...Moderate to locally fresh NE winds will occur across the western half of the Caribbean through Sun as a series of weakening cold fronts drift southward and dissipate this weekend. Elsewhere, moderate to locally fresh trades will prevail over the central and eastern Caribbean. Slight to moderate seas will dominate the basin this weekend. Looking ahead, high pressure will build over the eastern United States and western Atlantic early next week in the wake of multiple cold fronts moving off the east coast. A strengthening pressure gradient between these features will lead to fresh to locally strong NE to E winds across much of the Caribbean Mon through Wed, particularly through the Windward Passage. NW Caribbean W of 85W .TONIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...N winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...N winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .MON...NE winds less than 10 kt. Seas 4 to 5 ft. .MON NIGHT...NE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 5 ft. .TUE...NE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED...NE winds 10 to 15 kt, shifting to E in the afternoon. Seas 3 to 5 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. Caribbean N of 15N between 72W and 85W .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...NE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 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...E winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 10 to 15 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. Caribbean from 11N to 15N W of 72W .TONIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...NE winds 10 to 15 kt. Seas 5 to 6 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...NE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds 10 to 20 kt. 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 6 to 8 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUE NIGHT...NE 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. SW Caribbean S of 11N .TONIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...N winds less than 10 kt. Seas 4 to 6 ft. .SAT NIGHT...N winds less than 10 kt. Seas 4 to 5 ft. .SUN...N winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...N winds less than 10 kt. Seas 4 to 6 ft. .MON...NE winds 10 to 15 kt, shifting to N in the afternoon. Seas 4 to 6 ft. .MON NIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 4 to 6 ft. .TUE...N winds less than 10 kt. Seas 5 to 7 ft. .TUE NIGHT...NE winds less than 10 kt. Seas 5 to 7 ft. .WED...N winds less than 10 kt. Seas 5 to 7 ft. .WED NIGHT...N winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 6 ft. Caribbean between 64W and 72W .TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 15 kt. Seas 3 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .SUN...E winds 10 to 15 kt. Seas 3 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .MON...E winds 10 to 20 kt. Seas 5 to 6 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 6 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TONIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft. .SAT...SE winds 10 to 15 kt. Seas 6 to 8 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. .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. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .SAT...E winds 10 to 15 kt. Seas 6 to 8 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 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 6 to 8 ft. .TUE...E winds 10 to 15 kt. Seas 6 to 8 ft. .TUE NIGHT...E winds 10 to 15 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. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A series of cold fronts moving off the southeastern coast of the United States will progress slowly eastward this weekend into early next week. Fresh to strong NW winds will occur behind these fronts north of 27.5N through Sat morning, with the strongest winds occurring north of 29.5N and west of 72W. Rough seas associated with these fronts will spread south and east, with seas in excess of 8 ft occurring north of 27N. Farther east, ridging will drift eastward, and fresh S to SE winds will occur through Sat morning along the periphery of the ridge, generally north of 20N and east of 65W. South of 20N, moderate to at times fresh trades will prevail into the middle of next week. Looking ahead, widespread fresh to locally strong NE winds and rough seas will redevelop north of 20N Sun night through early next week as strong high pressure builds across the western Atlantic and into the local region, behind a weakening cold front. ATLC waters from 27N to 31N W of 77W .TONIGHT...NW winds 10 to 20 kt. Seas 6 to 9 ft. .SAT...N winds 10 to 15 kt. Seas 6 to 8 ft. .SAT NIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft. .SUN...NE winds 10 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .MON...E winds 15 to 25 kt. Seas 7 to 10 ft. .MON NIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft. .TUE...SE winds 10 to 20 kt. Seas 7 to 10 ft. .TUE NIGHT...SE winds 10 to 20 kt. Seas 6 to 9 ft. .WED...SE winds 10 to 15 kt. Seas 6 to 8 ft. .WED NIGHT...SE winds 10 to 15 kt. Seas 5 to 6 ft. ATLC waters from 27N to 31N between 65W and 77W .TONIGHT...W winds 10 to 20 kt. Seas 6 to 9 ft. .SAT...NW winds 10 to 20 kt. Seas 6 to 9 ft. .SAT NIGHT...N winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 6 to 9 ft. .SUN...N winds 10 to 15 kt. Seas 6 to 9 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 7 to 9 ft. .MON...NE winds 10 to 20 kt. Seas 7 to 10 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. .TUE...E winds 10 to 15 kt. Seas 6 to 9 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .WED...NE winds less than 10 kt. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 4 to 6 ft. Bahamas N of 22N .TONIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...N winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .SAT NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. .SUN...NE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .MON...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 5 to 7 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. .WED...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TONIGHT...W of 70W, N winds less than 10 kt, shifting to NW after midnight. Elsewhere, S winds 10 to 20 kt. Seas 7 to 9 ft. .SAT...NW winds 10 to 15 kt. Seas 6 to 8 ft. .SAT NIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 6 to 7 ft. .SUN...N winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 5 to 7 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .MON...NE winds 15 to 25 kt. Seas 7 to 10 ft. .MON NIGHT...NE winds 15 to 25 kt. Seas 8 to 12 ft. .TUE...NE winds 15 to 20 kt. Seas 8 to 11 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .WED...NE winds 10 to 15 kt. Seas 6 to 8 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 6 to 7 ft. ATLC waters S of 22N W of 65W .TONIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...NW winds less than 10 kt. Seas 4 to 6 ft. .SAT NIGHT...N winds 10 to 15 kt, shifting to NE after midnight. Seas 4 to 6 ft. .SUN...NE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 5 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...E winds 10 to 20 kt. Seas 7 to 10 ft. .TUE...E winds 10 to 20 kt. Seas 7 to 10 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .WED...E winds 10 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. ATLC waters from 19N to 22N between 55W and 65W .TONIGHT...SE winds 10 to 20 kt. Seas 7 to 10 ft. .SAT...SE winds 10 to 15 kt. Seas 6 to 9 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft. .SUN...SE 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 6 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...NE winds 10 to 15 kt. Seas 6 to 9 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft. .WED...NE winds 10 to 15 kt. Seas 7 to 8 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 6 to 7 ft.