000 FZNT31 KNHC 212049 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 349 PM 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...Showers and thunderstorms associated with a small area of low pressure over the central Caribbean have not become any better organized today. Nearby dry air is forecast to prevent additional significant development of the system as it moves slowly westward during the next few days. This system has a low chance of formation in the next 48 hours and 7 days. Meanwhile, high pressure N of the Greater Antilles will cause fresh to strong NE winds to continue in the Windward Passage and just S of Hispaniola through Wed afternoon. Elsewhere, winds will be moderate or less into late week. NW Caribbean W of 85W .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 3 to 4 ft. .THU...E winds less than 10 kt. Seas 3 to 5 ft. .THU NIGHT...E winds less than 10 kt. Seas 3 to 5 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, building to 3 ft after midnight. .SAT...Variable winds less than 10 kt. Seas 2 ft or less. .SAT NIGHT...E winds less than 10 kt. Seas 3 ft. .SUN...E winds less than 10 kt. Seas 3 ft. .SUN NIGHT...E winds less than 10 kt. Seas 3 ft. Caribbean N of 15N between 72W and 85W .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .WED...S of 18N, E winds 10 to 15 kt. Elsewhere, E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 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 S of 18N, and E less than 10 kt elsewhere. 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 10 to 15 kt. Seas 3 to 4 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Caribbean from 11N to 15N W of 72W .TONIGHT...NE winds less than 10 kt within 90 nm of coast of Colombia, and NE 10 to 15 kt elsewhere. Seas 4 to 6 ft. .WED...SE 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 4 to 6 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. SW Caribbean S of 11N .TONIGHT...NW winds less than 10 kt in the evening, becoming 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 3 ft. .THU NIGHT...Variable winds less than 10 kt, becoming N less than 10 kt after midnight. Seas 3 to 4 ft. .FRI...N winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...NE winds less than 10 kt. Seas 3 to 5 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...NE winds less than 10 kt. Seas 3 to 5 ft. .SUN...N winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 6 ft. Caribbean between 64W and 72W .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 3 to 5 ft elsewhere. .THU...E winds 10 to 15 kt. Gulf of Venezuela, seas 2 ft or less, building to 3 ft in the afternoon. Elsewhere, 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 6 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 15 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 15 kt. Seas 4 to 6 ft. .SUN 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 .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...E winds 10 to 15 kt. Seas 6 to 8 ft. .THU...E winds 10 to 15 kt. Seas 6 to 8 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .FRI...E winds 10 to 15 kt. Seas 6 to 8 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .SAT...E winds 10 to 15 kt, shifting to NE in the afternoon. Seas 6 to 8 ft. .SAT NIGHT...NE winds 10 to 15 kt, shifting to E after midnight. Seas 5 to 7 ft. .SUN...E winds less than 10 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds less than 10 kt, shifting to E after midnight. Seas 4 to 6 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .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 3 to 5 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...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...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. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Low pressure near 31N53W has a cold front extending SW of the low 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 morning along with a broad area of strong winds on both sides of the low and 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, and 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 with swell also impacting the Atlantic Passages. Looking ahead, fresh to strong winds will develop offshore northern Florida 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 .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 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, becoming W less than 10 kt in the afternoon. Seas 3 to 4 ft. .FRI NIGHT...NW winds less than 10 kt. Seas 3 to 4 ft. .SAT...NW winds less than 10 kt. Seas 3 to 4 ft. .SAT NIGHT...NW winds less than 10 kt. Seas 5 to 7 ft. .SUN...N winds 10 to 15 kt. Seas 5 to 7 ft. .SUN NIGHT...N winds less than 10 kt. Seas 4 to 6 ft. ATLC waters from 27N to 31N between 65W and 77W .TONIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. .WED...SE winds 10 to 15 kt. Seas 7 to 10 ft. .WED NIGHT...SW winds 15 to 25 kt W of 70W, and S 15 to 25 kt elsewhere. Seas 7 to 10 ft. .THU...W of 70W, NW winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Elsewhere, SW winds 15 to 25 kt. Seas 7 to 10 ft. .THU NIGHT...N winds less than 10 kt. 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 4 to 6 ft. .SAT...NE winds less than 10 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .SUN...S winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...SW winds 10 kt. Seas 4 to 6 ft. Bahamas N of 22N .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 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. .SUN...NE winds less than 10 kt. Seas 3 ft. .SUN NIGHT...NE winds less than 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. ATLC waters from 22N to 27N between 65W and the Bahamas .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 less than 10 kt. Seas 6 to 9 ft. .THU...S winds less than 10 kt. Seas 6 to 8 ft. .THU NIGHT...E winds less than 10 kt. Seas 5 to 7 ft. .FRI...SE winds less than 10 kt. Seas 5 to 6 ft. .FRI NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .SAT...E winds less than 10 kt. Seas 4 to 5 ft. .SAT NIGHT...E winds less than 10 kt. Seas 4 to 5 ft. .SUN...E winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. ATLC waters S of 22N W of 65W .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. Seas 6 to 8 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...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 3 to 5 ft. .SUN...E winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 5 ft. ATLC waters from 19N to 22N between 55W and 65W .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 10 ft. .THU...E winds 10 to 15 kt. Seas 8 to 10 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 7 to 9 ft. .FRI...NE winds 10 to 15 kt. Seas 7 to 8 ft. .FRI NIGHT...E winds 10 kt. Seas 6 to 8 ft. .SAT...E winds 10 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 kt. Seas 5 to 6 ft. .SUN...E winds less than 10 kt. Seas 5 ft. .SUN NIGHT...NE winds less than 10 kt. Seas 4 to 5 ft.