000 FZNT31 KNHC 211514 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1014 AM EST Tue Nov 21 2023 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...Disorganized showers and thunderstorms over the central Caribbean Sea are associated with a small area of low pressure. Nearby dry air is forecast to prevent additional significant development of the system as it begins to drift slowly westward during the next couple of days. This system has a low chance of formation in the next 48 hours and 7 days. Meanwhile, high pressure building toward the Greater Antilles will cause fresh to strong NE winds in the Windward Passage and just S of Hispaniola today through Wed afternoon. Elsewhere, winds will be moderate or less into late week. NW Caribbean W of 85W .TODAY...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .TONIGHT...E winds less than 10 kt. Seas 3 ft. .WED...NE winds less than 10 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. .WED NIGHT...NE winds less than 10 kt. Seas 2 ft or less, building to 3 ft after midnight. .THU...NE winds less than 10 kt. Seas 3 ft. .THU NIGHT...E winds less than 10 kt. Seas 3 ft. .FRI...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. .FRI NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. .SAT...Variable winds less than 10 kt, becoming NE less than 10 kt in the afternoon. Seas 2 ft or less. .SAT NIGHT...E winds less than 10 kt. Seas 3 ft. Caribbean N of 15N between 72W and 85W .TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .WED...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt elsewhere. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .SAT NIGHT...E winds less than 10 kt. Seas 3 ft. Caribbean from 11N to 15N W of 72W .TODAY...NE winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...Variable winds less than 10 kt within 90 nm of coast of Colombia, and NE 10 to 15 kt elsewhere. Seas 3 to 5 ft. .WED...E winds less than 10 kt within 90 nm of coast of Colombia, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. SW Caribbean S of 11N .TODAY...Variable winds less than 10 kt. Seas 2 ft or less. .TONIGHT...Variable winds less than 10 kt. Seas 2 ft or less. .WED...Variable winds less than 10 kt, becoming W less than 10 kt in the afternoon. Seas 2 ft or less. .WED NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. .THU...Variable winds less than 10 kt. Seas 3 ft. .THU NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .FRI...NE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. .SAT...N winds less than 10 kt. Seas 3 to 5 ft. .SAT NIGHT...N winds less than 10 kt. Seas 3 to 5 ft. Caribbean between 64W and 72W .TODAY...Gulf of Venezuela, Variable winds less than 10 kt. Elsewhere, E winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .TONIGHT...NE winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .WED...E winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .WED NIGHT...E winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 15 kt. Seas 4 to 5 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...SE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 4 to 6 ft. .TONIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft. .WED...NE winds less than 10 kt. Seas 5 to 7 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft. .THU...E winds 10 to 15 kt. Seas 6 to 9 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. .FRI...NE winds 10 to 15 kt. Seas 6 to 8 ft. .FRI NIGHT...NE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 6 to 8 ft. .SAT...NE winds less than 10 kt. Seas 5 to 7 ft. .SAT NIGHT...NE winds less than 10 kt. Seas 5 to 7 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .TONIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. .WED...E winds less than 10 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 15 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. Seas 5 to 7 ft. .SAT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Low pressure is developing near 35N51W with a cold front extending SW to the Anegada Passage. Gale force winds are ongoing west of the low and front. As the low tracks SE through Wed night, gale force winds will continue in the forecast waters through Wed afternoon along with a broad area of strong winds on both sides of the front N of 23N and E of 65W. High seas over 20 ft will accompany the strong to gale- force winds. As this low moves over warmer sea surface temperatures during the next few days, environmental conditions appear conducive for this system to gradually acquire tropical characteristics. A subtropical or tropical storm could form by the latter part of this week, as the system continues moving eastward followed by a turn northeastward by the weekend. This system has a low chance of development in 48 hours and medium chance in 7 days. Regardless of development, northerly swell will lead to seas of 12 ft or greater N of 20N and E of 65W into late week. Looking ahead, fresh to strong winds will develop offshore northern Florida today into tonight in advance of the next cold front that will push off the Florida coast by Wed. ATLC waters from 27N to 31N W of 77W .TODAY...SE winds 10 to 20 kt. Seas 6 to 8 ft. .TONIGHT...S winds 10 to 20 kt. Seas 6 to 8 ft. .WED...SW winds 15 to 25 kt. Seas 6 to 9 ft. .WED NIGHT...NW winds 15 to 25 kt. Seas 6 to 9 ft. .THU...N winds 10 to 15 kt in the morning, becoming variable winds less than 10 kt. Seas 5 to 7 ft. .THU NIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft. .FRI...Variable winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .SAT...SE winds 10 to 15 kt, shifting to S in the afternoon. Seas 3 to 5 ft. .SAT NIGHT...W winds less than 10 kt. Seas 5 to 7 ft. ATLC waters from 27N to 31N between 65W and 77W .TODAY...E winds 15 to 20 kt. Seas 7 to 9 ft W of 70W, and 9 to 12 ft elsewhere. .TONIGHT...SE winds 10 to 15 kt W of 70W, and E 10 to 20 kt elsewhere. Seas 8 to 11 ft. .WED...SE winds 10 to 15 kt. Seas 6 to 8 ft W of 70W, and 8 to 11 ft elsewhere. .WED NIGHT...W of 70W, SW winds 15 to 25 kt. Elsewhere, S winds 10 to 15 kt, increasing to 15 to 25 kt after midnight. Seas 7 to 9 ft. .THU...W winds 10 to 20 kt. Seas 6 to 9 ft. .THU NIGHT...NW winds 10 to 15 kt, shifting to N after midnight. Seas 6 to 8 ft. .FRI...NE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 5 to 7 ft. .FRI NIGHT...Variable winds less than 10 kt, becoming NE less than 10 kt after midnight. Seas 5 to 7 ft. .SAT...E winds less than 10 kt. Seas 4 to 6 ft. .SAT NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. Bahamas N of 22N .TODAY...E winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .WED...E winds 10 to 15 kt, shifting to SE in the afternoon. Seas 4 to 6 ft. .WED NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .THU...Variable winds less than 10 kt, becoming E less than 10 kt in the afternoon. Seas 3 to 4 ft. .THU NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .FRI...E winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...SE winds less than 10 kt. Seas 3 ft. .SAT...SE winds less than 10 kt. Seas 3 ft. .SAT NIGHT...SE winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 2 ft or less. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...E winds 15 to 20 kt W of 70W, and NE 15 to 25 kt elsewhere. Seas 8 to 11 ft. .TONIGHT...E winds 10 to 20 kt. Seas 7 to 9 ft W of 70W, and 9 to 11 ft elsewhere. .WED...E winds 10 to 15 kt. Seas 8 to 11 ft. .WED NIGHT...SE winds less than 10 kt. Seas 7 to 10 ft. .THU...S winds less than 10 kt. Seas 6 to 9 ft. .THU NIGHT...NE winds less than 10 kt. Seas 5 to 7 ft. .FRI...SE winds less than 10 kt. Seas 5 to 6 ft. .FRI NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft. .SAT...E winds less than 10 kt. Seas 4 to 6 ft. .SAT NIGHT...SE winds less than 10 kt. Seas 4 to 5 ft. ATLC waters S of 22N W of 65W .TODAY...NE winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...NE 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 15 kt, diminishing to less than 10 kt after midnight. Seas 6 to 8 ft. .THU...E winds less than 10 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 15 kt. Seas 5 to 7 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 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...SW winds less than 10 kt, shifting to W in the afternoon. Seas 6 to 8 ft. .TONIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. .WED...NE winds 10 to 20 kt. Seas 8 to 11 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 9 to 11 ft. .THU...E winds 10 to 15 kt. Seas 8 to 11 ft. .THU NIGHT...NE winds 10 kt. Seas 8 to 10 ft. .FRI...NE winds 10 kt. Seas 7 to 9 ft. .FRI NIGHT...NE winds 10 kt. Seas 6 to 8 ft. .SAT...NE winds 10 kt. Seas 6 to 7 ft. .SAT NIGHT...NE winds 10 kt. Seas 5 to 6 ft.