000 FZNT31 KNHC 211526 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1126 AM 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...Long period north to northeast swell moving through the Tropical N Atlantic waters and Caribbean passages will subside Thu. Moderate to fresh trade winds in the central Caribbean will change little through the next few days. Northeast to east trade winds will pulse to fresh to strong speeds offshore northern Colombia and northwest Venezuela during the afternoons and at night into early next week. NW Caribbean W of 85W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 ft. .TONIGHT...E winds 10 to 20 kt. Seas 3 ft. .FRI...E winds 10 to 15 kt. Seas 3 ft. .FRI NIGHT...NE winds 10 to 15 kt, shifting to E after midnight. 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 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...E winds 10 to 15 kt. Seas 2 ft or less. Caribbean N of 15N between 72W and 85W .THIS AFTERNOON...E winds 10 to 15 kt. S of 18N, seas 3 to 5 ft. Elsewhere, seas 3 ft, subsiding to 2 ft or less. .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 to 4 ft. .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...E 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 5 ft S of 18N, and 2 ft or less elsewhere. Caribbean from 11N to 15N W of 72W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 4 to 6 ft. .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. SW Caribbean S of 11N .THIS AFTERNOON...NE winds 10 to 20 kt. Seas 3 to 5 ft. .TONIGHT...NE winds 10 to 15 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 20 kt. Seas 3 to 4 ft. .SAT NIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 4 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. Caribbean between 64W and 72W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 3 to 4 ft. .TONIGHT...NE winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 3 to 4 ft. .FRI...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. 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 5 ft. .SAT NIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 15 to 25 kt elsewhere. 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. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 20 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 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...NE winds 15 to 25 kt. Seas 5 to 7 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...SE 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 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. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Potential Tropical Cyclone Sixteen is near 28.9N 75.9W at 11 AM EDT, and is moving north at 8 kt. Maximum sustained winds are 25 kt with gusts to 35 kt, and the minimum central pressure is 1012 mb. PTC Sixteen will move to 30.0N 75.5W this evening,and will be N of area near 31.7N 75.4W by Fri morning. In its wake, high pressure ridging will build from E to W just north of the forecast waters into early next week. ATLC waters from 27N to 31N W of 77W .THIS AFTERNOON...NE winds 15 to 25 kt. Seas 5 to 7 ft. .TONIGHT...NE 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 11 ft. .SAT...NW winds 10 to 15 kt. Seas 7 to 10 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 5 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. ATLC waters from 27N to 31N between 65W and 77W ...TROPICAL STORM WARNING... .THIS AFTERNOON...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 20 to 30 kt W of 70W, and E 10 to 15 kt elsewhere. Seas 6 to 8 ft W of 70W, and 5 ft elsewhere. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. S winds 30 to 40 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. .FRI...TROPICAL STORM CONDITIONS EXPECTED. SW winds 30 to 40 kt W of 70W, and SE 10 to 20 kt elsewhere. 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 4 to 6 ft. .SUN NIGHT...S winds less than 10 kt, increasing to 10 to 15 kt after midnight. 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. Bahamas N of 22N .THIS AFTERNOON...SE winds less than 10 kt. Seas 3 ft. .TONIGHT...NE winds less than 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. .FRI...E winds less than 10 kt. 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...E winds 10 to 15 kt. Seas 3 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .THIS AFTERNOON...SE winds 10 to 20 kt. Seas 5 to 6 ft. .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. ATLC waters S of 22N W of 65W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft. .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...SE winds 10 to 20 kt. Seas 3 to 5 ft. .SUN...SE winds 10 to 15 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. ATLC waters from 19N to 22N between 55W and 65W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...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 15 kt. Seas 6 to 7 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 6 to 8 ft.