000 FZNT31 KNHC 212054 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 454 PM EDT Thu Sep 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...Moderate to fresh trade winds in the central Caribbean will change little through the next few days. Trade winds will pulse to fresh to strong speeds offshore northern Colombia and northwest Venezuela during the overnight and early morning hours into early next week. Elsewhere moderate or weaker winds will prevail with slight to moderate seas. NW Caribbean W of 85W .TONIGHT...E winds 10 to 20 kt. Seas 3 ft. .FRI...E winds 10 to 15 kt, shifting to NE in the afternoon. Seas 3 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 2 ft or less. .SAT...NE winds less than 10 kt. Seas 2 ft or less. .SAT NIGHT...NE winds less than 10 kt, shifting to E after midnight. Seas 2 ft or less. .SUN...SE winds less than 10 kt. Seas 2 ft or less. .SUN NIGHT...SE winds less than 10 kt. Seas 2 ft or less. .MON...SE winds 10 to 15 kt. Seas 2 ft or less. .MON NIGHT...E winds 10 to 15 kt. Seas 2 ft or less. .TUE...E winds 10 to 15 kt. Seas 2 ft or less. Caribbean N of 15N between 72W and 85W .TONIGHT...S of 18N, E winds 10 to 15 kt. Elsewhere, NE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .FRI...S of 18N, E winds 10 to 15 kt. Elsewhere, NE winds 10 to 15 kt, shifting to E in the afternoon. Seas 3 ft in the morning, subsiding to 2 ft or less. .FRI NIGHT...S of 18N, E winds 10 to 15 kt. Elsewhere, NE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 ft or less. .SAT...E winds 10 to 20 kt. Seas 2 ft or less, building to 3 ft in the afternoon. .SAT NIGHT...E winds 10 to 20 kt. Seas 3 ft. .SUN...SE winds 10 to 20 kt. Seas 3 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 3 ft. .MON...E winds 10 to 20 kt. Seas 3 to 4 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. .TUE...E winds 10 to 20 kt. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. Caribbean from 11N to 15N W of 72W .TONIGHT...NE winds 15 to 25 kt. Seas 3 to 5 ft. .FRI...E winds 15 to 25 kt. Seas 3 to 5 ft. .FRI NIGHT...NE winds 15 to 25 kt. Seas 3 to 5 ft. .SAT...NE winds 10 to 20 kt. Seas 3 to 4 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 3 to 4 ft. .SUN...E winds 10 to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .MON...E winds 10 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .TUE...E winds 10 to 20 kt. Seas 4 to 6 ft. SW Caribbean S of 11N .TONIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. .FRI...NE winds 10 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...N winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...N winds less than 10 kt. Seas 3 ft. .SUN...NW winds less than 10 kt. Seas 3 ft. .SUN NIGHT...NW winds less than 10 kt. Seas 3 ft. .MON...W winds less than 10 kt. Seas 2 ft or less. .MON NIGHT...N winds less than 10 kt. Seas 2 ft or less. .TUE...SW winds less than 10 kt. Seas 3 ft. Caribbean between 64W and 72W .TONIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. .FRI...E winds 10 to 20 kt. Seas 3 to 4 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. .SAT...E winds 10 to 20 kt. Seas 3 to 4 ft. .SAT NIGHT...E winds 15 to 25 kt. Seas 3 to 5 ft. .SUN...E winds 10 to 20 kt. Gulf of Venezuela, seas 3 ft in the morning, subsiding to 2 ft or less. Elsewhere, seas 4 to 5 ft. .SUN NIGHT...E winds 10 to 20 kt. Gulf of Venezuela, seas 2 ft or less, building to 3 ft after midnight. Elsewhere, seas 4 to 6 ft. .MON...E winds 10 to 20 kt. Gulf of Venezuela, seas 3 ft in the morning, subsiding to 2 ft or less. Elsewhere, seas 4 to 6 ft. .MON NIGHT...E winds 10 to 20 kt. Gulf of Venezuela, seas 2 ft or less, building to 3 ft after midnight. Elsewhere, seas 4 to 6 ft. .TUE...E winds 10 to 20 kt. Gulf of Venezuela, seas 3 ft in the morning, subsiding to 2 ft or less. Elsewhere, seas 3 to 5 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TONIGHT...E winds 10 to 20 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 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. .SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...NE winds 15 to 25 kt. Seas 6 to 8 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TONIGHT...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 3 to 5 ft. .SAT...E winds 10 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .MON...E winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...E winds 10 to 15 kt. Seas 4 to 6 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Potential Tropical Cyclone Sixteen is near 29.2N 75.9W at 5 PM EDT, and is moving north at 7 kt. Maximum sustained winds are 30 kt with gusts to 40 kt, and the minimum central pressure is 1012 mb. PTC Sixteen will move to 30.8N 75.8W Fri morning, and will be N of the forecast region near 32.6N 76.0W by Fri afternoon. In its wake, a ridge will build from E to W across the area through the upcoming weekend. ATLC waters from 27N to 31N W of 77W .TONIGHT...N winds 20 to 30 kt. Seas 7 to 10 ft. .FRI...N winds 20 to 30 kt. Seas 7 to 10 ft. .FRI NIGHT...N winds 15 to 25 kt. Seas 8 to 13 ft. .SAT...NW winds 10 to 15 kt. Seas 8 to 11 ft. .SAT NIGHT...N winds less than 10 kt, shifting to SE after midnight. Seas 5 to 7 ft. .SUN...E winds less than 10 kt. Seas 3 to 4 ft. .SUN NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .MON...E winds less than 10 kt. Seas 3 to 4 ft. .MON NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .TUE...SE winds 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 4 ft. ATLC waters from 27N to 31N between 65W and 77W ...TROPICAL STORM WARNING... .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. W of 70W, S winds 20 to 30 kt, increasing to 30 to 40 kt after midnight. Elsewhere, SE winds 10 to 20 kt. Seas 6 to 9 ft W of 70W, and 5 to 6 ft elsewhere. .FRI...TROPICAL STORM CONDITIONS EXPECTED. W of 70W, SW winds 30 to 40 kt, diminishing to 20 to 30 kt in the afternoon. Elsewhere, SE winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...SW winds 20 to 30 kt W of 70W, and SE 10 to 20 kt elsewhere. Seas 6 to 9 ft W of 70W, and 5 to 6 ft elsewhere. .SAT...S winds 10 to 20 kt. Seas 6 to 9 ft W of 70W, and 5 to 6 ft elsewhere. .SAT NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. .SUN...SE winds 10 to 15 kt. Seas 5 to 7 ft. .SUN NIGHT...W of 70W, S winds less than 10 kt, increasing to 10 to 15 kt after midnight. Elsewhere, S winds 10 to 15 kt. Seas 4 to 6 ft. .MON...S winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .MON NIGHT...SE winds less than 10 kt. Seas 4 to 5 ft. .TUE...E winds less than 10 kt. Seas 4 ft. Bahamas N of 22N .TONIGHT...NE winds less than 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. .FRI...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 2 ft or less. .FRI NIGHT...NE winds 10 to 15 kt. Seas 2 ft or less. .SAT...E winds 10 to 15 kt. Seas 2 ft or less. .SAT NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. .SUN...SE winds 10 to 20 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. .MON...SE winds 10 to 15 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. .MON NIGHT...E winds 10 to 15 kt. Seas 2 ft or less. .TUE...E winds 10 to 15 kt. Seas 3 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TONIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. .FRI...SE winds 10 to 15 kt. Seas 4 to 5 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. .SAT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...SE winds 10 to 20 kt. Seas 5 to 6 ft. .SUN...SE winds 10 to 20 kt. Seas 5 to 6 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 5 to 6 ft. .MON...SE winds 10 to 15 kt. Seas 4 to 5 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .TUE...E winds 10 to 15 kt. Seas 4 to 5 ft. ATLC waters S of 22N W of 65W .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .SAT...E winds 10 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .SUN...SE winds 10 to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .MON...E winds 10 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .TUE...E winds 10 to 20 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W .TONIGHT...E winds 10 to 20 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 6 ft. .SAT...SE winds 10 to 15 kt. Seas 5 to 6 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. .SUN...E winds 10 to 20 kt. Seas 5 to 6 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .TUE...NE winds 15 to 25 kt. Seas 7 to 10 ft.