000 FZNT31 KNHC 120906 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 506 AM EDT Thu Oct 12 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 weak ridge persists just N of the basin from 1014 mb high pressure near 24N62W to the NW Bahamas. Moderate to fresh trade winds across the eastern and central Caribbean will diminish to gentle to moderate early Fri and prevail through Mon night as the high shift eastward. Fresh to strong SE to S winds in the Gulf of Honduras and NW Caribbean will continue through Fri night. A cold front will sink S-SE across the western Atlantic over the weekend and act to maintain the weak trade wind flow across the basin. NW Caribbean W of 85W .TODAY...SE winds 15 to 25 kt. Seas 6 to 8 ft. .TONIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...SE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .SUN NIGHT...NE winds less than 10 kt. Seas 3 ft. .MON...N winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. Caribbean N of 15N between 72W and 85W .TODAY...SE winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...SE winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt elsewhere. Seas 3 to 5 ft. .SAT...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .SAT NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .SUN...SE winds less than 10 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. .SUN NIGHT...SE winds less than 10 kt. Seas 2 ft or less. .MON...NE winds less than 10 kt. Seas 2 ft or less. .MON NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. Caribbean from 11N to 15N W of 72W .TODAY...E winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 15 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 3 to 5 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 4 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. .MON...NE winds less than 10 kt. Seas 3 ft. .MON NIGHT...E winds less than 10 kt. Seas 3 ft. SW Caribbean S of 11N .TODAY...Variable winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...Variable winds less than 10 kt, becoming S less than 10 kt after midnight. Seas 3 to 4 ft. .FRI...Variable winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. .SAT...Variable winds less than 10 kt. Seas 3 ft. .SAT NIGHT...Variable 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 3 ft. .SUN NIGHT...W winds less than 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. .MON...Variable winds less than 10 kt. Seas 2 ft or less. .MON NIGHT...Variable winds less than 10 kt, becoming SW less than 10 kt after midnight. Seas 2 ft or less. Caribbean between 64W and 72W .TODAY...E winds 10 to 20 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 4 to 6 ft. .FRI NIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 4 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON...E winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...E winds less than 10 kt. Seas 4 to 6 ft. .TONIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .FRI...SE winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...SE winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 3 to 5 ft. .SAT...Variable winds less than 10 kt, becoming SE less than 10 kt in the afternoon. Seas 3 to 4 ft. .SAT NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .SUN...SE winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft. .MON...E winds less than 10 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...E winds less than 10 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 15 kt, shifting to SE in the afternoon. Seas 3 to 5 ft. .FRI NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 5 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .MON...E winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A weak ridge prevails across the area tonight, S of a stationary front that extends from 26N55W to 29.5N71W, where it transitions to a warm front that continues W to Florida along 29.5N and into the NE Gulf of Mexico. 997 mb low pressure along the front in the N Gulf of Mexico is expected to move eastward across N Florida this morning, then continue eastward and emerge across the W Atlc, bringing strong to near gale force winds east of northern and central Florida today, then move E of 75W tonight, and move eastward across the NE waters Fri through early Sat. Gale force winds are forecast to affect the northern offshore waters N of 30N this evening and tonight and N of 27N Fri through Fri night. Scattered showers and thunderstorms and high seas are expected with this frontal system. ATLC waters from 27N to 31N W of 77W .TODAY...SW winds 20 to 30 kt. Seas 7 to 10 ft. .TONIGHT...W winds 15 to 25 kt. Seas 6 to 9 ft. .FRI...E winds 10 to 15 kt. Seas 6 to 9 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...W winds 10 to 15 kt. Seas 5 to 6 ft. .SAT NIGHT...W winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...W winds 15 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...NW winds 10 to 20 kt. Seas 5 to 7 ft. .MON...NW winds 10 to 20 kt. Seas 5 to 6 ft. .MON NIGHT...NW winds 10 to 20 kt. Seas 5 to 7 ft. ATLC waters from 27N to 31N between 65W and 77W ...GALE WARNING... .TODAY...W of 70W, S winds 10 to 20 kt. Elsewhere, E winds less than 10 kt, shifting to S in the afternoon. Seas 5 to 7 ft. .TONIGHT...W of 70W, W winds 15 to 25 kt, Seas 7 to 10 ft. Elsewhere, SW winds 10 to 20 kt, increasing to 25 to 35 kt after midnight, Seas 4 to 6 ft, building to 7 to 10 ft after midnight. .FRI...N winds 10 to 20 kt W of 70W, and NW 20 to 30 kt elsewhere. Seas 8 to 11 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .SAT...E winds 10 to 15 kt. Seas 6 to 9 ft. .SAT NIGHT...S winds 10 to 20 kt. Seas 5 to 7 ft. .SUN...SW winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...W winds 10 to 20 kt. Seas 6 to 8 ft. .MON...W winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...W winds 10 to 20 kt. Seas 5 to 7 ft. Bahamas N of 22N .TODAY...S winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...S winds less than 10 kt. Seas 3 ft. .FRI...W winds less than 10 kt. Seas 3 ft. .FRI NIGHT...W winds less than 10 kt. Seas 3 ft. .SAT...W winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 ft. .SAT NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...W winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft. .MON...W winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...NW winds 10 to 15 kt. Seas 3 to 4 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...S winds 10 to 15 kt. Seas 4 to 5 ft. .TONIGHT...W of 70W, SW winds 10 to 15 kt. Elsewhere, SW winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 5 ft. .FRI...W winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...W of 70W, NW winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Elsewhere, NW winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...W winds less than 10 kt. Seas 4 to 6 ft. .SAT NIGHT...W winds less than 10 kt, shifting to SW after midnight. Seas 5 to 7 ft. .SUN...SW winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft. .MON...SW winds 10 to 15 kt. Seas 5 to 7 ft. .MON NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft. ATLC waters S of 22N W of 65W .TODAY...SE winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .FRI...S winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .SAT...Variable winds less than 10 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. .SAT NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. .SUN...S winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...S winds less than 10 kt. Seas 3 to 5 ft. .MON...S winds less than 10 kt. Seas 3 to 5 ft. .MON NIGHT...S winds less than 10 kt. Seas 3 to 5 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 5 ft. .TONIGHT...Variable winds less than 10 kt. Seas 4 to 5 ft. .FRI...Variable winds less than 10 kt, becoming S 10 kt in the afternoon. Seas 4 to 5 ft. .FRI NIGHT...SW winds less than 10 kt. Seas 4 to 5 ft. .SAT...SW winds less than 10 kt. Seas 3 to 5 ft. .SAT NIGHT...SW winds less than 10 kt. Seas 4 to 6 ft. .SUN...S winds 10 kt. Seas 4 to 6 ft. .SUN NIGHT...S winds 10 kt. Seas 5 to 6 ft. .MON...S winds 10 kt. Seas 4 to 6 ft. .MON NIGHT...SE winds less than 10 kt. Seas 4 to 5 ft.