000 FZNT31 KNHC 171503 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1103 AM EDT Tue Oct 17 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 Gulf of Honduras. The front should remain in place through Wed before dissipating Wed night. Fresh NE winds and moderate seas will persist over the northwest Caribbean through Wed as high pressure builds over the area. Looking ahead, a broad area of low pressure located over the central tropical Atlantic about 1100 miles east of the Windward Islands has a medium chance of tropical cyclone formation trough 48 hours with a high chance of formation beyond 48 hours. This system is forecast to approach the waters E of the Leeward Islands Fri into Sat bringing increasing winds and seas. NW Caribbean W of 85W .THIS AFTERNOON...N winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .WED...NE winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...NE winds 10 to 15 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...NE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...N winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...N winds less than 10 kt. Seas 3 to 4 ft. .SAT NIGHT...NE winds less than 10 kt. Seas 3 ft. Caribbean N of 15N between 72W and 85W .THIS AFTERNOON...E winds less than 10 kt S of 18N, and NE 10 to 15 kt elsewhere. Seas 3 to 5 ft. .TONIGHT...S of 18N, NE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Elsewhere, NE winds 10 to 20 kt. Seas 3 to 5 ft. .WED...NE winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...NE 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 less than 10 kt. Seas 3 ft. .FRI...NE 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. Caribbean from 11N to 15N W of 72W .THIS AFTERNOON...Within 90 nm of coast of Colombia, E winds 10 to 15 kt. Elsewhere, E winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 3 ft. .WED...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. .WED NIGHT...E winds 10 to 20 kt. 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 3 to 5 ft. .FRI...E winds 10 to 15 kt. 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...E winds less than 10 kt. Seas 3 ft. SW Caribbean S of 11N .THIS AFTERNOON...SE winds less than 10 kt. Seas 2 ft or less. .TONIGHT...N winds less than 10 kt. Seas 2 ft or less. .WED...N winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .WED NIGHT...NW winds less than 10 kt. Seas 2 ft or less, building to 3 ft after midnight. .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...NW winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...SW winds less than 10 kt. Seas 3 ft. .SAT...W winds less than 10 kt. Seas 3 ft. .SAT NIGHT...SW winds less than 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. Caribbean between 64W and 72W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 4 ft. .WED...E winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 4 ft. .WED NIGHT...NE 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 15 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 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...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 ...GALE CONDITIONS POSSIBLE... .THIS AFTERNOON...E winds less than 10 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .WED...E winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...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 15 to 25 kt. Seas 7 to 10 ft. .FRI...E winds 20 to 30 kt. Seas 8 to 11 ft. .FRI NIGHT...E winds 20 to 30 kt. Seas 8 to 13 ft. .SAT...SE winds 20 to 30 kt. Seas 8 to 13 ft. .SAT NIGHT...S winds 20 to 30 kt, diminishing to 10 to 20 kt after midnight. Seas 7 to 10 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W ...GALE CONDITIONS POSSIBLE... .THIS AFTERNOON...E winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...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...E winds 10 to 20 kt. Seas 6 to 9 ft. .FRI...E winds 10 to 15 kt. Seas 6 to 9 ft. .FRI NIGHT...E 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. 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 Wed night or Thu. Expect fresh winds over waters north of 25N through this morning, on both sides of the front. Winds and seas will diminish tonight as high pressure builds over the area in the wake of the front. Looking ahead, 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 located over the central tropical Atlantic about 1100 miles east of the Windward Islands has a medium chance of tropical cyclone formation trough 48 hours and a high chance of formation beyond 48 hours. This system is likely to be near the northern Leeward Islands by Sat, bringing increasing winds and seas. ATLC waters from 27N to 31N W of 77W .THIS AFTERNOON...NW winds 10 to 15 kt. Seas 5 to 6 ft. .TONIGHT...N winds 10 kt. Seas 3 to 5 ft. .WED...NE winds 10 kt. Seas 3 to 4 ft. .WED NIGHT...E winds less than 10 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 10 to 20 kt. Seas 4 to 6 ft. .SAT...W winds 15 to 25 kt. Seas 6 to 9 ft. .SAT NIGHT...NW winds 15 to 25 kt. Seas 6 to 9 ft. ATLC waters from 27N to 31N between 65W and 77W .THIS AFTERNOON...W winds 10 to 15 kt. Seas 6 to 8 ft. .TONIGHT...NW winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 5 to 7 ft. .WED...W of 70W, N winds less than 10 kt. Elsewhere, W winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 15 kt W of 70W, and E less than 10 kt elsewhere. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. .FRI...S winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...SW winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...SW winds 15 to 25 kt. Seas 7 to 10 ft. .SAT NIGHT...W winds 15 to 25 kt. Seas 7 to 10 ft. Bahamas N of 22N .THIS AFTERNOON...N winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 3 ft. .WED...NE winds 10 to 15 kt. Seas 3 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 3 ft. .THU...E winds 10 to 15 kt. Seas 3 ft. .THU NIGHT...E winds 10 to 15 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...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 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 4 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .THIS AFTERNOON...W winds less than 10 kt. Seas 5 to 7 ft. .TONIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .WED...NE winds 10 to 15 kt W of 70W, and E less than 10 kt elsewhere. Seas 4 to 5 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...SE 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. ATLC waters S of 22N W of 65W .THIS AFTERNOON...SE winds less than 10 kt. Seas 3 ft. .TONIGHT...E winds less than 10 kt. Seas 3 ft. .WED...E winds less than 10 kt. Seas 3 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...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 in the evening, becoming variable winds less than 10 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W ...GALE CONDITIONS POSSIBLE... .THIS AFTERNOON...E winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .WED...E winds 10 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .THU...E winds 10 to 20 kt. Seas 6 to 9 ft. .THU NIGHT...E winds 15 to 20 kt. Seas 7 to 10 ft. .FRI...E winds 10 to 20 kt. Seas 7 to 10 ft. .FRI NIGHT...E winds 15 to 25 kt. Seas 8 to 12 ft. .SAT...E winds 20 to 30 kt. Seas 9 to 14 ft. .SAT NIGHT...SE winds 25 to 35 kt. Seas 10 to 15 ft.