000 FZNT31 KNHC 210909 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 409 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...A small and weak low pressure centered off the coast of Colombia is producing a cluster of showers and thunderstorms. Nearby dry air should prevent additional significant development of this system as it begins to drift slowly west 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 is leading fresh to locally strong NE winds in the Windward Passage and just S of Hispaniola. These winds will prevail into Wed. 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. .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 in the evening, becoming variable 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, becoming E less than 10 kt after midnight. Seas 2 ft or less. .SAT...Variable winds less than 10 kt. Seas 2 ft or less. .SAT NIGHT...E winds less than 10 kt. Seas 2 ft or less. 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 3 to 5 ft. .WED NIGHT...NE winds 10 to 15 kt S of 18N, and NE 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 5 ft. .SAT NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. Caribbean from 11N to 15N W of 72W .TODAY...NE winds less than 10 kt. Seas 3 ft. .TONIGHT...Within 90 nm of coast of Colombia, NW winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Elsewhere, NE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 5 ft. .WED...E 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 NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. 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 4 to 6 ft. .SAT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...NE winds 10 to 15 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. 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 2 ft or less. .THU NIGHT...N winds less than 10 kt. Seas 3 ft. .FRI...NE winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .SAT...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 5 ft. .SAT NIGHT...N winds less than 10 kt. Seas 3 to 4 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 4 to 6 ft elsewhere. .TONIGHT...NE winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .WED...E winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .WED NIGHT...E winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 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 6 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 3 to 5 ft. .TONIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft. .WED...NE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. .THU...E winds 10 to 15 kt. Seas 6 to 8 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 5 to 7 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 less than 10 kt. Seas 4 to 6 ft. .TONIGHT...E 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 4 to 6 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 31N58W along a cold front that extends SW to the Mona Passage. This low will move SE through the northeastern waters through tonight, bringing gale force winds, with a broad area of strong winds on both sides of the front N of 23N and E of 65W. Very rough seas of up to 22 ft will accompany is area of strong to gale-force winds. As this low reaches warmer sea 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 moves E of the area and then NE. Looking ahead, fresh to strong winds will develop offshore northern Florida by Wednesday in advance of the next cold front. ATLC waters from 27N to 31N W of 77W .TODAY...SE winds 15 to 20 kt. Seas 6 to 7 ft. .TONIGHT...S winds 10 to 20 kt. Seas 6 to 8 ft. .WED...SW winds 20 to 30 kt. Seas 6 to 9 ft. .WED NIGHT...W winds 15 to 25 kt. Seas 7 to 10 ft. .THU...N winds 10 to 15 kt. Seas 6 to 8 ft. .THU NIGHT...Variable winds less than 10 kt. Seas 4 to 6 ft. .FRI...E winds 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...S winds less than 10 kt. Seas 3 to 4 ft. .SAT...NW winds less than 10 kt. Seas 3 to 4 ft. .SAT NIGHT...N winds less than 10 kt. Seas 4 to 6 ft. ATLC waters from 27N to 31N between 65W and 77W .TODAY...E winds 15 to 25 kt. Seas 7 to 9 ft W of 70W, and 9 to 12 ft elsewhere. .TONIGHT...E winds 10 to 20 kt. 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 10 ft. .THU...W winds 10 to 20 kt. Seas 7 to 10 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft. .FRI...NE winds 10 kt in the morning, becoming variable winds less than 10 kt. Seas 6 to 8 ft. .FRI NIGHT...Variable winds less than 10 kt. Seas 5 to 7 ft. .SAT...Variable winds less than 10 kt. Seas 4 to 6 ft. .SAT NIGHT...Variable 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...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .WED NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .THU...SE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. 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...E winds less than 10 kt. Seas 3 ft. .SAT...E winds less than 10 kt. Seas 3 ft. .SAT NIGHT...E winds less than 10 kt. Seas 3 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...E winds 15 to 20 kt W of 70W, and NE 20 to 25 kt elsewhere. Seas 8 to 11 ft. .TONIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. .WED...E winds 10 to 15 kt. Seas 7 to 10 ft. .WED NIGHT...SE winds 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...E winds less than 10 kt. Seas 5 to 6 ft. .FRI NIGHT...E winds less than 10 kt. Seas 5 to 6 ft. .SAT...E winds less than 10 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds less than 10 kt in the evening, becoming variable 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 5 to 7 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .WED...E winds 10 to 20 kt. Seas 6 to 9 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .THU...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. 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 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...E winds less than 10 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...W winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. .WED...NE winds 10 to 20 kt. Seas 7 to 10 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 9 to 11 ft. .THU...E winds 10 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.