618 FZNT31 KNHC 161409 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 909 AM EST Sat Dec 16 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...Strong high pressure N of the region across the middle Atlantic states will support fresh to strong trade winds across the north-central basin today, before the high pressure shifts E and weakens, causing winds to gradually diminish into tonight. A cold front will move through the Yucatan Channel and into the NW Caribbean tonight, stretch from eastern Cuba to Nicaragua Mon morning, then stall and weaken from central Hispaniola to Panama Wed. Fresh to strong NW to N winds will follow this front, becoming N to NE on Wed. NW Caribbean W of 85W .TODAY...SW winds less than 10 kt, shifting to W in the afternoon. Seas 6 to 8 ft. .TONIGHT...W winds 10 to 20 kt. Seas 5 to 7 ft. .SUN...NW winds 10 to 20 kt. Seas 6 to 9 ft. .SUN NIGHT...NW winds 10 to 20 kt. Seas 6 to 8 ft. .MON...NW winds 10 to 15 kt. Seas 5 to 7 ft. .MON NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...N winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...NE winds 10 to 20 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 4 to 6 ft. Caribbean N of 15N between 72W and 85W .TODAY...SE winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft. .SUN...SW winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...NW winds 10 to 20 kt. Seas 5 to 7 ft. .MON...N winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...N winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .WED...NE winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. Caribbean from 11N to 15N W of 72W .TODAY...E winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SUN...NE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .MON...NE winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...N winds 15 to 25 kt. Seas 6 to 8 ft. .TUE...NE winds 15 to 25 kt. Seas 6 to 8 ft. .TUE NIGHT...NE winds 15 to 25 kt. Seas 6 to 8 ft. .WED...NE winds 10 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. SW Caribbean S of 11N .TODAY...N winds less than 10 kt. Seas 4 to 6 ft. .TONIGHT...N winds less than 10 kt. Seas 4 to 6 ft. .SUN...N winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .MON...N winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...N winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...N winds 10 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...N winds 10 to 20 kt. Seas 7 to 10 ft. .WED...N winds 10 to 20 kt. Seas 6 to 9 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. Caribbean between 64W and 72W .TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SUN...E winds 10 to 15 kt. Seas 3 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .MON...E winds 10 to 15 kt. Seas 5 to 7 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .TUE NIGHT...NE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 4 to 5 ft. .WED...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...E winds 10 to 15 kt. Seas 6 to 8 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .SUN...NE winds 10 to 20 kt. Seas 6 to 9 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .MON...NE winds 10 to 20 kt. Seas 7 to 10 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft. .TUE...NE winds less than 10 kt. Seas 6 to 9 ft. .TUE NIGHT...E winds less than 10 kt. Seas 6 to 9 ft. .WED...Variable winds less than 10 kt. Seas 6 to 9 ft. .WED NIGHT...NE winds less than 10 kt. Seas 6 to 9 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SUN...E winds 10 to 15 kt. Seas 5 to 7 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .MON...E winds 10 to 15 kt. Seas 5 to 7 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 5 to 7 ft. .TUE NIGHT...E winds less than 10 kt. Seas 5 to 7 ft. .WED...E winds less than 10 kt. Seas 5 to 7 ft. .WED NIGHT...E winds less than 10 kt. Seas 5 to 7 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A slow moving cold front extends from 27N55W to near 24N60W, where it becomes stationary and continues through the central Bahamas and Straits of Florida. This front will become stationary along 23N today and begin to weaken. The pressure gradient between the strong high pressure building north of the area and the front will result in near gale to gale-force NE to E winds and high seas over the waters W of 65W and north of 23N through tonight. Gulf of Mexico low pressure will move NE across N Florida tonight, then emerge along the SE coast of the U.S. on Sun. A large area of southerly gales will develop SE of the low and an associated cold front tonight through Sun night. Numerous thunderstorms in association with this low will provide locally higher winds and seas through Sun. Gale-force winds will lift N of the area waters Mon night as the cold front reaches from near Bermuda to the Windward Passage, then will stall from just E of Bermuda to Hispaniola Tue night. ATLC waters from 27N to 31N W of 77W ...GALE WARNING TONIGHT THROUGH SUN NIGHT... .TODAY...E winds 20 to 30 kt. Seas 8 to 13 ft. .TONIGHT...SE winds 30 to 40 kt. Seas 10 to 15 ft, building to 14 to 19 ft after midnight. .SUN...S winds 30 to 40 kt. Seas 16 to 21 ft. .SUN NIGHT...W winds 25 to 35 kt. Seas 14 to 19 ft. .MON...W winds 20 to 30 kt. Seas 10 to 15 ft. .MON NIGHT...NW winds 15 to 25 kt. Seas 8 to 11 ft. .TUE...N winds 15 to 25 kt. Seas 8 to 10 ft. .TUE NIGHT...NE winds 20 kt. Seas 7 to 9 ft. .WED...NE winds 15 to 20 kt. Seas 8 to 10 ft. .WED NIGHT...NE winds 15 to 20 kt. Seas 7 to 10 ft. ATLC waters from 27N to 31N between 65W and 77W ...GALE WARNING TONIGHT THROUGH MON... .TODAY...E winds 15 to 25 kt W of 70W, and E 10 to 20 kt elsewhere. Seas 8 to 11 ft. .TONIGHT...E winds 25 to 35 kt W of 70W, and E 15 to 25 kt elsewhere. Seas 9 to 14 ft W of 70W, and 7 to 10 ft elsewhere. .SUN...SE winds 25 to 35 kt W of 70W, and SE 20 to 30 kt elsewhere. Seas 14 to 19 ft W of 70W, and 9 to 13 ft elsewhere. .SUN NIGHT...S winds 25 to 35 kt. Seas 15 to 20 ft W of 70W, and 12 to 17 ft elsewhere. .MON...SW winds 25 to 35 kt. Seas 14 to 19 ft. .MON NIGHT...SW winds 15 to 25 kt. Seas 12 to 17 ft. .TUE...NW winds 10 to 20 kt. Seas 10 to 15 ft. .TUE NIGHT...N winds 15 to 25 kt. Seas 9 to 13 ft. .WED...N winds 20 to 30 kt. Seas 10 to 14 ft. .WED NIGHT...N winds 20 to 30 kt. Seas 11 to 16 ft. Bahamas N of 22N ...GALE WARNING THROUGH SUN... .TODAY...E winds 25 to 35 kt. Seas 7 to 10 ft. .TONIGHT...SE winds 20 to 30 kt. Seas 7 to 10 ft. .SUN...S winds 15 to 25 kt. Seas 6 to 9 ft. .SUN NIGHT...W winds 10 to 20 kt. Seas 6 to 8 ft. .MON...NW winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...N winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .WED...NE winds 15 to 25 kt. Seas 6 to 8 ft. .WED NIGHT...NE winds 15 to 25 kt. Seas 6 to 8 ft. ATLC waters from 22N to 27N between 65W and the Bahamas ...GALE WARNING TONIGHT AND SUN... .TODAY...E winds 20 to 25 kt W of 70W, and E 15 to 25 kt elsewhere. Seas 10 to 14 ft. .TONIGHT...E winds 25 to 35 kt. Seas 10 to 14 ft. .SUN...SE winds 20 to 30 kt. Seas 11 to 15 ft W of 70W, and 10 to 12 ft elsewhere. .SUN NIGHT...SE winds 15 to 25 kt. Seas 10 to 14 ft. .MON...S winds 15 to 25 kt. Seas 9 to 14 ft. .MON NIGHT...SW winds 10 to 20 kt. Seas 8 to 13 ft. .TUE...N winds 10 to 15 kt. Seas 8 to 11 ft. .TUE NIGHT...N winds 10 to 20 kt. Seas 8 to 11 ft. .WED...N winds 15 to 25 kt. Seas 9 to 13 ft. .WED NIGHT...N winds 15 to 25 kt. Seas 10 to 14 ft. ATLC waters S of 22N W of 65W .TODAY...E winds 10 to 20 kt. Seas 8 to 11 ft. .TONIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft. .SUN...SE winds 10 to 20 kt. Seas 7 to 10 ft. .SUN NIGHT...SE winds 10 to 20 kt. Seas 6 to 9 ft. .MON...SE winds 10 to 20 kt. Seas 6 to 9 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .TUE...NE winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .WED...NE winds 10 to 20 kt. Seas 6 to 9 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...NE winds 10 to 20 kt. Seas 7 to 10 ft. .TONIGHT...NE winds 15 to 20 kt. Seas 7 to 10 ft. .SUN...NE winds 15 to 20 kt. Seas 8 to 11 ft. .SUN NIGHT...NE winds 15 to 20 kt. Seas 9 to 11 ft. .MON...E winds 15 to 20 kt. Seas 9 to 11 ft. .MON NIGHT...NE winds 10 to 20 kt. Seas 9 to 12 ft. .TUE...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 9 to 12 ft. .TUE NIGHT...NE winds less than 10 kt. Seas 9 to 12 ft. .WED...NW winds less than 10 kt. Seas 10 to 11 ft. .WED NIGHT...N winds less than 10 kt. Seas 9 to 10 ft.