000 FZNT31 KNHC 181509 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1109 AM EDT Wed Oct 18 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 stationary front extends from eastern Cuba to NE Honduras. The front should remain in place through today before dissipating tonight. Fresh to locally strong NE winds and seas of 6 to 8 ft will persist over the northwest Caribbean through today as high pressure builds over the area. Looking ahead, a broad area of low pressure located about 850 miles east of the Windward Islands continue to show signs of organization. It has a high chance of tropical cyclone formation through 48 hours. Interests in the Lesser Antilles should monitor the progress of this system, and watches may be required for some of the islands later today. NW Caribbean W of 85W .THIS AFTERNOON...NE winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .THU...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .THU NIGHT...N winds 10 to 15 kt, shifting to NE after midnight. Seas 3 to 4 ft. .FRI...N winds less than 10 kt. Seas 3 ft. .FRI NIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 4 ft. .SAT...N winds less than 10 kt. Seas 3 ft. .SAT NIGHT...NE winds less than 10 kt. Seas 3 ft. .SUN...NE 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 .THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .THU...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 5 ft. .THU NIGHT...E winds 10 to 15 kt S of 18N, and Variable less than 10 kt elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. .FRI...E winds less than 10 kt. Seas 3 ft. .FRI NIGHT...NE winds less than 10 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. Seas 2 ft or less. .SUN...E winds less than 10 kt. Seas 2 ft or less. .SUN NIGHT...E winds less than 10 kt. Seas 2 ft or less. Caribbean from 11N to 15N W of 72W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...NE winds 15 to 20 kt within 90 nm of coast of Colombia, and NE 10 to 20 kt elsewhere. Seas 3 to 5 ft. .THU...E winds 10 to 20 kt. Seas 3 to 5 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...NE winds 10 to 15 kt, shifting to E in the afternoon. Seas 3 to 5 ft. .FRI NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .SAT...E winds less than 10 kt. Seas 3 ft. .SAT NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .SUN...E winds less than 10 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. SW Caribbean S of 11N .THIS AFTERNOON...Variable winds less than 10 kt. Seas 2 ft or less. .TONIGHT...N winds less than 10 kt. Seas 3 ft. .THU...N winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...W winds less than 10 kt. Seas 3 to 5 ft. .FRI...W winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...W winds less than 10 kt, shifting to SW after midnight. Seas 3 to 4 ft. .SAT...W winds less than 10 kt. Seas 3 ft. .SAT NIGHT...W winds less than 10 kt. Seas 3 ft. .SUN...Variable winds less than 10 kt, becoming SW less than 10 kt in the afternoon. Seas 2 ft or less. .SUN NIGHT...S winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 2 ft or less. Caribbean between 64W and 72W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...Gulf of Venezuela, NE winds 10 to 20 kt, shifting to E 20 to 25 kt after midnight. Elsewhere, E winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. .THU NIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. 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 less than 10 kt. Seas 3 to 5 ft. .SAT NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. .SUN...NE winds less than 10 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds less than 10 kt. Seas 3 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W ...STORM CONDITIONS POSSIBLE... .THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .THU...E winds 10 to 20 kt. Seas 7 to 10 ft. .THU NIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft. .FRI...E winds 20 to 30 kt. Seas 8 to 13 ft. .FRI NIGHT...E winds 20 to 30 kt. Seas 8 to 13 ft. .SAT...E winds 20 to 30 kt. Seas 8 to 13 ft. .SAT NIGHT...S winds 20 to 30 kt. Seas 7 to 10 ft. .SUN...S winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W ...STORM CONDITIONS POSSIBLE... .THIS AFTERNOON...E winds less than 10 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU...E winds 10 to 15 kt. Seas 6 to 8 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .FRI...SE winds 10 to 20 kt. Seas 8 to 11 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 6 to 9 ft. .SAT...SE winds 10 to 15 kt. Seas 6 to 8 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A stationary front extends from 31N62W to eastern Cuba. The front will remain in place before dissipating Thu. High pressure will build over the area in the wake of the front. The next frontal system will move offshore the southeastern United States Fri night. Fresh to strong winds and rough seas are forecast north of 27N Fri night through Sat night with this system. Looking ahead, a broad area of low pressure located about 850 miles east of the Windward Islands continue to show signs of organization. It has a high chance of tropical cyclone formation through 48 hours. Interests in the Lesser Antilles should monitor the progress of this system, and watches may be required for some of the islands later today. ATLC waters from 27N to 31N W of 77W .THIS AFTERNOON...NE winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...NE winds 10 to 15 kt, shifting to E after midnight. Seas 3 to 4 ft. .THU...NE winds less than 10 kt. Seas 3 ft. .THU NIGHT...Variable winds less than 10 kt, becoming NW less than 10 kt after midnight. Seas 3 to 4 ft. .FRI...W winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...W winds 15 to 25 kt. Seas 4 to 6 ft. .SAT...W winds 15 to 25 kt. Seas 6 to 9 ft. .SAT NIGHT...NW winds 10 to 20 kt. Seas 6 to 8 ft. .SUN...W winds less than 10 kt. Seas 4 to 6 ft. .SUN NIGHT...NW winds less than 10 kt. Seas 3 to 5 ft. ATLC waters from 27N to 31N between 65W and 77W .THIS AFTERNOON...N winds less than 10 kt. Seas 4 to 5 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...S winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...SW winds 10 to 20 kt. Seas 6 to 8 ft. .SAT...SW winds 15 to 25 kt. Seas 6 to 9 ft. .SAT NIGHT...W winds 10 to 20 kt. Seas 7 to 10 ft. .SUN...W winds 10 to 15 kt. Seas 7 to 10 ft. .SUN NIGHT...NW winds less than 10 kt. Seas 6 to 8 ft. Bahamas N of 22N .THIS AFTERNOON...NE winds 10 to 15 kt. Seas 3 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 3 ft. .THU...E winds 10 to 15 kt. Seas 3 ft. .THU NIGHT...E winds less than 10 kt. Seas 3 ft. .FRI...W winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT...W winds less than 10 kt. Seas 2 ft or less. .SAT...W winds 10 to 15 kt. Seas 3 ft. .SAT NIGHT...NW winds less than 10 kt. Seas 3 to 4 ft. .SUN...Variable winds less than 10 kt. Seas 3 ft. .SUN NIGHT...NE winds less than 10 kt. Seas 3 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .THIS AFTERNOON...NE winds 10 to 15 kt W of 70W, and SE less than 10 kt elsewhere. Seas 4 to 5 ft. .TONIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...S winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...SW winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...SW winds 10 to 15 kt, shifting to W after midnight. Seas 6 to 8 ft. .SUN...NW winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 6 to 9 ft. .SUN NIGHT...NE winds less than 10 kt. Seas 6 to 9 ft. ATLC waters S of 22N W of 65W .THIS AFTERNOON...E winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. 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 4 to 6 ft. .FRI...SE winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...S winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .SAT NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft. .SUN...NE winds less than 10 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W ...STORM CONDITIONS POSSIBLE... .THIS AFTERNOON...E winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .THU...E winds 10 to 20 kt. Seas 7 to 10 ft. .THU NIGHT...E winds 15 to 20 kt. Seas 7 to 10 ft. .FRI...E winds 15 to 20 kt. Seas 8 to 10 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 9 to 11 ft. .SAT...E winds 15 to 25 kt. Seas 9 to 11 ft, building to 9 to 14 ft in the afternoon. .SAT NIGHT...E winds 20 to 30 kt. Seas 10 to 15 ft. .SUN...SE winds 20 to 30 kt. Seas 10 to 15 ft. .SUN NIGHT...S winds 20 to 30 kt. Seas 8 to 13 ft, subsiding to 7 to 10 ft after midnight.