000 FZNT31 KNHC 210910 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 410 AM EST Tue Jan 21 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 to strong winds and rough seas will prevail across the eastern half of the basin through midweek. Winds could reach near-gale speeds in the vicinity of the N coast of Colombia each night through the end of the week. A cold front will enter the NW Caribbean on Wed, bringing near-gale force NW winds and rough seas to the area. These conditions will diminish quickly as the front weakens on Wed night. NW Caribbean W of 85W .TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .WED...N 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 8 ft. .THU NIGHT...NE winds 10 to 15 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 7 to 10 ft. .SAT...NE winds 15 to 25 kt. Seas 7 to 10 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 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 S of 18N, and E less than 10 kt elsewhere. Seas 6 to 9 ft S of 18N, and 3 to 5 ft elsewhere. .WED...E winds 10 to 20 kt S of 18N, and NE less than 10 kt elsewhere. Seas 6 to 8 ft S of 18N, and 3 to 4 ft elsewhere. .WED NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .THU...NE winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...NE winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...NE winds 15 to 25 kt. Seas 5 to 7 ft. .SAT...NE winds 15 to 25 kt. Seas 6 to 9 ft. .SAT NIGHT...NE winds 15 to 25 kt. Seas 6 to 8 ft. Caribbean from 11N to 15N W of 72W .TODAY...E winds 15 to 25 kt. Seas 8 to 11 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. .WED...E winds 15 to 25 kt. Seas 8 to 11 ft. .WED NIGHT...E winds 20 to 30 kt within 90 nm of coast of Colombia, and NE 15 to 25 kt elsewhere. Seas 8 to 11 ft. .THU...E winds 15 to 25 kt. Seas 8 to 11 ft. .THU NIGHT...NE winds 15 to 25 kt. Seas 7 to 10 ft. .FRI...NE winds 10 to 20 kt. Seas 7 to 10 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 7 to 8 ft. .SAT...NE winds 10 to 20 kt. Seas 7 to 9 ft. .SAT NIGHT...NE winds 15 to 25 kt. Seas 7 to 10 ft. SW Caribbean S of 11N .TODAY...NE winds 10 to 20 kt. Seas 7 to 10 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft. .WED...NE winds 10 to 15 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 7 to 10 ft. .THU NIGHT...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 20 kt. Seas 7 to 10 ft. Caribbean between 64W and 72W .TODAY...E winds 15 to 25 kt. Seas 3 to 5 ft Gulf of Venezuela, and 6 to 9 ft elsewhere. .TONIGHT...E winds 20 to 30 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. .WED...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. .WED NIGHT...E winds 20 to 30 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 3 to 5 ft Gulf of Venezuela, and 6 to 8 ft elsewhere. .THU...E winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 5 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. .SAT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT 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 15 to 25 kt. Seas 7 to 10 ft. .TONIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft. .WED...E winds 10 to 20 kt. Seas 7 to 10 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 6 to 9 ft. .SAT...E winds 10 to 20 kt. Seas 6 to 9 ft. .SAT 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. .WED...E winds 10 to 20 kt. Seas 7 to 10 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 6 to 9 ft. .SAT...E winds 10 to 20 kt. Seas 7 to 10 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A cold front extending from 31N66W to 27N73W, then becoming stationary to W Cuba. This front will merge with the next one, which is expected to move off the SE U.S. coast Tue evening. The new front will reach from near 31N72W to the Florida Keys by Wed morning, from 31N61W to the southern Bahamas Thu morning where it will stall and weaken quickly through Thu evening. This front will be followed by gale-force north winds and rough seas north of 24N and W of about 70W through midday Wed. In the long term, low pressure is expected to develop offshore the SE U.S. Thu into Thu evening, 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 evening, and from Bermuda to the Windward Passage Sat morning. Fresh to strong NW winds are expected in the wake of tho front. ATLC waters from 27N to 31N W of 77W ...GALE WARNING... .TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...E winds 15 to 25 kt, shifting to N 20 to 35 kt after midnight. Seas 7 to 10 ft. .WED...NE winds 15 to 25 kt. Seas 8 to 13 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 8 to 11 ft. .THU...E winds 10 to 15 kt. Seas 6 to 9 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 6 to 8 ft. .FRI...NW winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...NW winds 20 to 25 kt. Seas 7 to 10 ft. .SAT...N winds 10 to 20 kt. Seas 6 to 9 ft. .SAT NIGHT...E winds less than 10 kt. Seas 5 to 7 ft. ATLC waters from 27N to 31N between 65W and 77W ...GALE WARNING... .TODAY...SE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 5 to 7 ft. .TONIGHT...W of 70W, S winds 10 to 15 kt, increasing to 20 to 35 kt after midnight. Elsewhere, S winds 10 to 20 kt. Seas 5 to 7 ft. .WED...W winds 15 to 25 kt. Seas 8 to 13 ft W of 70W, and 6 to 7 ft elsewhere. .WED NIGHT...NE winds 10 to 20 kt. Seas 8 to 11 ft W of 70W, and 7 to 10 ft elsewhere. .THU...E winds 10 to 20 kt. Seas 7 to 10 ft. .THU NIGHT...S winds less than 10 kt. Seas 7 to 8 ft. .FRI...S winds less than 10 kt, shifting to SW in the afternoon. Seas 6 to 7 ft. .FRI NIGHT...W winds 15 to 25 kt. Seas 6 to 7 ft, building to 7 to 10 ft after midnight. .SAT...N winds 15 to 25 kt. Seas 8 to 11 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 8 to 11 ft. Bahamas N of 22N .TODAY...SE winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .WED...S winds less than 10 kt, shifting to NW in the afternoon. Seas 3 to 4 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .THU...E winds less than 10 kt. Seas 4 to 6 ft. .THU NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .FRI...NE winds less than 10 kt, shifting to NW in the afternoon. Seas 3 to 5 ft. .FRI NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 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...SE winds 10 to 15 kt. Seas 5 to 7 ft. .WED...S winds 10 to 15 kt. Seas 5 to 7 ft. .WED NIGHT...W of 70W, S winds less than 10 kt, shifting to E after midnight. Elsewhere, SE winds less than 10 kt. Seas 7 to 10 ft W of 70W, and 5 to 7 ft elsewhere. .THU...SE winds less than 10 kt. Seas 6 to 9 ft. .THU NIGHT...SE winds less than 10 kt. Seas 7 ft. .FRI...SE winds 10 to 15 kt. Seas 6 to 7 ft. .FRI NIGHT...S winds less than 10 kt, shifting to SW after midnight. Seas 6 to 7 ft. .SAT...N winds 10 to 20 kt. Seas 7 to 10 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. ATLC waters S of 22N W of 65W .TODAY...E winds 10 to 20 kt. Seas 6 to 8 ft. .TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .WED...SE 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 20 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 5 to 7 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...NE winds 10 to 20 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 10 ft. .TONIGHT...E winds 10 to 20 kt. Seas 8 to 10 ft. .WED...E winds 10 to 20 kt. Seas 7 to 10 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 7 to 9 ft. .THU...E winds 10 to 20 kt. Seas 7 to 9 ft. .THU NIGHT...E winds 15 to 20 kt. Seas 7 to 9 ft. .FRI...E winds 15 to 20 kt. Seas 8 to 9 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 8 to 9 ft. .SAT...E winds 10 to 15 kt. Seas 7 to 9 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 7 to 8 ft.