000 FZNT31 KNHC 201515 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1015 AM EST Mon Jan 20 2025 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...Fresh northeast to east winds will prevail across most of the Caribbean and Tropical Atlantic waters through the week, with locally strong to near gale winds developing each night offshore of Colombia through midweek. Easterly trade wind swell will produce rough seas through the Atlantic Passages through the week. A Gulf of Mexico cold front across the Straits of Florida and the Yucatan Channel will stall today and weaken across the far northwestern Caribbean and western Cuba through Tue. Fresh to strong east winds and building seas will dominate the eastern and central basin today through Fri as strong high pressure and associated ridge builds north of the area. The next strong cold front will reach the Yucatan Channel Wed afternoon, then stall and dissipate Wed night. NW Caribbean W of 85W .TODAY...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .TUE...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .WED...N winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 6 to 9 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft. .THU...NE winds less than 10 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds less than 10 kt. Seas 5 to 7 ft. .FRI...NE winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...NE 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. 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 4 to 6 ft elsewhere. .TUE...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 4 to 6 ft elsewhere. .TUE NIGHT...S of 18N, E winds 10 to 20 kt. Elsewhere, E winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 6 to 9 ft S of 18N, and 3 to 5 ft elsewhere. .WED...NE winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .THU...E winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...NE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...NE winds 15 to 25 kt. Seas 6 to 9 ft. Caribbean from 11N to 15N W of 72W .TODAY...E winds 15 to 25 kt. Seas 7 to 10 ft. .TONIGHT...E winds 20 to 30 kt within 90 nm of coast of Colombia, and E 15 to 25 kt elsewhere. Seas 8 to 11 ft. .TUE...E winds 15 to 25 kt. Seas 8 to 11 ft. .TUE NIGHT...E winds 20 to 30 kt within 90 nm of coast of Colombia, and E 15 to 25 kt elsewhere. Seas 8 to 11 ft. .WED...E winds 15 to 25 kt. Seas 8 to 11 ft. .WED NIGHT...NE winds 15 to 25 kt. Seas 8 to 11 ft. .THU...E winds 15 to 25 kt. Seas 8 to 11 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .FRI...NE winds 10 to 20 kt. Seas 8 to 11 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 7 to 9 ft. SW Caribbean S of 11N .TODAY...NE winds 10 to 15 kt. Seas 6 to 9 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .TUE...NE winds 10 to 20 kt. Seas 8 to 11 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 7 to 10 ft. .WED...NE winds 10 to 15 kt. Seas 8 to 11 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .THU...NE winds 10 to 20 kt. Seas 8 to 11 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft. .FRI...NE winds 10 to 15 kt. Seas 7 to 10 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. Caribbean between 64W and 72W .TODAY...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 6 to 9 ft elsewhere. .TONIGHT...E winds 20 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 4 to 6 ft Gulf of Venezuela, and 7 to 10 ft elsewhere. .TUE...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. .TUE NIGHT...E winds 20 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 4 to 6 ft Gulf of Venezuela, and 7 to 9 ft elsewhere. .WED...E winds 10 to 20 kt. Seas 6 to 9 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .THU...E winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 6 to 7 ft. .FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...E winds 10 to 20 kt. Seas 7 to 10 ft. .TONIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. .TUE...E winds 15 to 25 kt. Seas 8 to 11 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. .WED...E winds 10 to 20 kt. Seas 8 to 11 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .THU...E winds 10 to 20 kt. Seas 8 to 11 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .FRI...E winds 10 to 20 kt. Seas 7 to 10 ft. .FRI NIGHT...E winds 10 to 20 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 7 to 10 ft. .TONIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .TUE...E winds 10 to 20 kt. Seas 8 to 11 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. .WED...E winds 10 to 20 kt. Seas 8 to 11 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 20 kt. Seas 7 to 10 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A cold front extends from 31N72W to the Straits of Florida. The cold front will reach from near Bermuda to western Cuba by this evening then stall and weaken on Tue. Fresh trades in the far southern waters east of the Bahamas will weaken some on Wed. Another cold front is expected to move off the southeastern U.S. coast Tue evening, and reach from near 31N72W to the Florida Keys by Wed morning, then become aligned E to W along 27N and weaken quickly through early Thu. This front will be followed by strong to minimal gale force north winds and high seas north of 24N and W of about 70W through midday Wed. In the long term, low pressure is expected to develop offshore the southeastern U.S. Thu into Thu night, with a trailing cold front reaching to central Cuba. The low is expected to move well north of the area Fri, with the cold front reaching from near 31N70W to eastern Cuba by Fri night. Fresh to strong northwest winds are expected in the wake of tho front. ATLC waters from 27N to 31N W of 77W ...GALE WARNING... .TODAY...N winds 10 to 15 kt. Seas 6 to 8 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...NE winds 10 to 20 kt. Seas 6 to 8 ft. .TUE NIGHT...E winds 10 to 20 kt, becoming N 25 to 35 kt after midnight. Seas 6 to 9 ft, building to 8 to 13 ft after midnight. .WED...NE winds 15 to 25 kt. Seas 9 to 14 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 8 to 12 ft. .THU...E winds 10 to 15 kt, shifting to S in the afternoon. Seas 7 to 10 ft. .THU NIGHT...NW winds 10 to 20 kt. Seas 7 to 9 ft. .FRI...NW winds 15 to 20 kt. Seas 7 to 9 ft. .FRI NIGHT...N winds 15 to 20 kt. Seas 7 to 10 ft. ATLC waters from 27N to 31N between 65W and 77W .TODAY...W winds 10 to 15 kt. Seas 6 to 8 ft. .TONIGHT...NE winds 10 to 15 kt W of 70W, and S less than 10 kt elsewhere. Seas 6 to 8 ft. .TUE...E winds 10 to 15 kt W of 70W, and S less than 10 kt elsewhere. Seas 6 to 8 ft. .TUE NIGHT...S winds 10 to 20 kt. Seas 6 to 8 ft. .WED...W winds 15 to 25 kt. Seas 8 to 11 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 8 to 11 ft. .THU...SE winds 10 to 15 kt. Seas 7 to 10 ft. .THU NIGHT...S winds 10 to 20 kt. Seas 7 to 8 ft. .FRI...W winds 15 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...NW winds 10 to 20 kt. Seas 8 to 11 ft. Bahamas N of 22N .TODAY...E winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...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...SE winds 10 to 15 kt. Seas 3 to 5 ft. .WED...W winds less than 10 kt. Seas 3 to 5 ft. .WED NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .THU...S winds less than 10 kt. Seas 4 to 6 ft. .THU NIGHT...N winds less than 10 kt, shifting to NW after midnight. Seas 3 to 5 ft. .FRI...N winds 10 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...N winds 10 to 20 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 4 to 6 ft. .TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...SE winds 10 to 15 kt. Seas 6 to 8 ft. .TUE NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft. .WED...S winds 10 to 15 kt. Seas 6 to 8 ft. .WED NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 6 to 7 ft, building to 7 to 10 ft after midnight. .THU...SE winds 10 to 15 kt. Seas 6 to 9 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 6 to 7 ft. .FRI...S winds 10 to 15 kt. Seas 6 to 7 ft. .FRI NIGHT...SE winds 10 to 15 kt, shifting to NE 10 to 20 kt after midnight. Seas 7 to 10 ft. ATLC waters S of 22N W of 65W .TODAY...E winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .WED...E winds 10 to 15 kt. Seas 5 to 7 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...E winds 15 to 20 kt. Seas 8 to 9 ft. .TONIGHT...E winds 15 to 20 kt. Seas 8 to 10 ft. .TUE...E winds 15 to 20 kt. Seas 8 to 11 ft. .TUE NIGHT...E winds 15 to 20 kt. Seas 9 to 11 ft. .WED...E winds 10 to 20 kt. Seas 8 to 11 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 8 to 10 ft. .THU...E winds 10 to 20 kt. Seas 8 to 9 ft. .THU NIGHT...E winds 15 to 20 kt. Seas 7 to 10 ft. .FRI...E winds 15 to 20 kt. Seas 7 to 10 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 8 to 9 ft.