000 FZNT31 KNHC 180934 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 534 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 the N coast of western 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. Scattered thunderstorms are expected through today near and just to the southeast of the frontal boundary. Looking ahead, a broad area of low pressure (AL94) located about 850 nautical miles east of the Windward Islands continues to show signs of organization. It has a high chance of tropical cyclone formation through 48 hours. Regardless of development, this system has the potential to bring gusty winds, heavy rainfall, and flooding to portions of the Leeward Islands beginning Friday. This low pressure is expected to develop gale force winds today. NW Caribbean W of 85W .TODAY...NE winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .THU...NE winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 15 kt, diminishing to less than 10 kt 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, increasing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. .SAT NIGHT...NE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 4 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 .TODAY...E winds 10 to 20 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, 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 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...N 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 3 ft. .SUN...NE 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 .TODAY...E winds 10 to 20 kt within 90 nm of coast of Colombia, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. .TONIGHT...E winds 15 to 20 kt within 90 nm of coast of Colombia, and E 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 ft. .SUN...E winds less than 10 kt. Seas 3 ft. .SUN NIGHT...E winds less than 10 kt. Seas 3 ft. SW Caribbean S of 11N .TODAY...NE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .TONIGHT...N winds less than 10 kt. Seas 3 ft. .THU...NW winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...NW 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. Seas 3 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. Seas 2 ft or less. .SUN NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. Caribbean between 64W and 72W .TODAY...E winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. 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 less than 10 kt. Seas 3 to 5 ft. .SAT...SE winds less than 10 kt. Seas 3 to 5 ft. .SAT NIGHT...E 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. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W ...STORM WARNING... ...STORM CONDITIONS POSSIBLE FRI THROUGH FRI NIGHT... .TODAY...E winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .THU...E winds 10 to 20 kt. Seas 6 to 9 ft. .THU NIGHT...E winds 30 to 50 kt. Seas 7 to 10 ft, building to 9 to 14 ft after midnight. .FRI...E winds 25 to 45 kt. Seas 11 to 16 ft. .FRI NIGHT...SE winds 25 to 40 kt. Seas 11 to 16 ft. .SAT...SE winds 20 to 30 kt, becoming S 10 to 20 kt in the afternoon. Seas 11 to 16 ft. .SAT NIGHT...S winds 10 to 20 kt. Seas 8 to 13 ft, subsiding to 6 to 9 ft after midnight. .SUN...S winds 10 to 15 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 WARNING... .TODAY...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. 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 5 to 7 ft. .THU NIGHT...South of 12N, E winds 10 to 20 kt. Seas 7 to 10 ft. North of 12N, W winds 30 to 50 kt. Seas 10 to 18 ft. .FRI...SE winds 10 to 20 kt. Seas 8 to 13 ft, subsiding to 7 to 10 ft in the afternoon. .FRI NIGHT...SE winds 10 to 15 kt. Seas 6 to 9 ft. .SAT...SE winds 10 to 15 kt. Seas 5 to 7 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 31N64W 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. A broad area of low pressure (AL94) located about 850 nautical miles east of the Windward Islands continues 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. This low pressure is expected to develop gale force winds today. ATLC waters from 27N to 31N W of 77W .TODAY...NE winds 10 kt. Seas 3 to 4 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU...NE winds less than 10 kt. Seas 3 ft. .THU NIGHT...NW winds less than 10 kt. Seas 3 to 4 ft. .FRI...NW winds less than 10 kt, shifting to W in the afternoon. Seas 3 to 4 ft. .FRI NIGHT...W winds 15 to 25 kt. Seas 4 to 6 ft. .SAT...NW winds 15 to 25 kt. Seas 6 to 8 ft. .SAT NIGHT...NW winds 10 to 15 kt. Seas 5 to 7 ft. .SUN...NW 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 .TODAY...W of 70W, N winds less than 10 kt. Elsewhere, W winds less than 10 kt, shifting to SW in the afternoon. Seas 4 to 6 ft. .TONIGHT...W of 70W, NE winds 10 to 15 kt. Elsewhere, NE winds 10 to 15 kt, shifting to E after midnight. Seas 3 to 5 ft. .THU...W of 70W, E winds 10 to 15 kt. Elsewhere, E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...S winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...SW winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...W 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, shifting to NW in the afternoon. Seas 7 to 10 ft. .SUN NIGHT...N winds less than 10 kt. Seas 6 to 9 ft. Bahamas N of 22N .TODAY...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 in the evening, subsiding to 2 ft or less. .FRI...W winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT...NW winds less than 10 kt, shifting to W after midnight. Seas 2 ft or less. .SAT...NW winds 10 to 15 kt. Seas 3 ft. .SAT NIGHT...N winds less than 10 kt. Seas 3 to 4 ft. .SUN...NE 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 .TODAY...E winds less than 10 kt. 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 20 kt. Seas 5 to 7 ft. .SAT...SW winds 10 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...W winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 6 to 9 ft. .SUN...N winds less than 10 kt. Seas 8 to 11 ft. .SUN NIGHT...N winds 10 to 15 kt. Seas 8 to 11 ft. ATLC waters S of 22N W of 65W .TODAY...E winds less than 10 kt. Seas 3 ft. .TONIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 5 ft. .THU...E winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. 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 6 to 9 ft. .SUN...N winds less than 10 kt. Seas 6 to 9 ft. .SUN NIGHT...NE winds less than 10 kt. Seas 6 to 8 ft. ATLC waters from 19N to 22N between 55W and 65W ...STORM CONDITIONS POSSIBLE SAT THROUGH SUN... .TODAY...E winds 10 to 20 kt. Seas 6 to 8 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 10 to 20 kt. Seas 8 to 10 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft, building to 9 to 14 ft after midnight. .SAT...E winds 25 to 40 kt. Seas 12 to 17 ft. .SAT NIGHT...SE winds 35 to 50 kt. Seas 13 to 18 ft. .SUN...S winds 25 to 35 kt. Seas 11 to 16 ft. .SUN NIGHT...S winds 10 to 20 kt. Seas 7 to 10 ft.