000 FZNT31 KNHC 170306 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1006 PM 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 western Atlantic along 34N will support fresh trade winds across the north-central basin tonight, before the high pressure shifts E and weakens, causing winds to gradually diminish Sun. A cold front will move through the Yucatan Channel and into the NW Caribbean tonight, stretch from eastern Cuba to Costa Rica Mon morning, then stall and weaken from central Hispaniola to Panama by Wed. Fresh to strong NW to N winds will follow this front, becoming N to NE on Wed. NW Caribbean W of 85W .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 6 to 8 ft. .MON NIGHT...N winds 10 to 15 kt. Seas 5 to 7 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 5 to 7 ft. .THU...NE winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. Caribbean N of 15N between 72W and 85W .TONIGHT...S winds 10 to 15 kt. Seas 4 to 6 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 5 to 7 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .WED...NE winds 10 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .THU...NE winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. Caribbean from 11N to 15N W of 72W .TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 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 10 to 20 kt. Seas 5 to 7 ft. .TUE...N winds 15 to 25 kt. Seas 6 to 8 ft. .TUE NIGHT...NE winds 15 to 25 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 6 to 9 ft. .THU...NE winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...NE winds 15 to 20 kt. Seas 6 to 8 ft. SW Caribbean S of 11N .TONIGHT...N winds less than 10 kt. Seas 4 to 6 ft. .SUN...NW 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 20 kt. Seas 5 to 7 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 15 kt. Seas 6 to 8 ft. .THU...N winds 10 to 15 kt. Seas 6 to 7 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 6 to 7 ft. Caribbean between 64W and 72W .TONIGHT...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .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 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .MON...E winds 10 to 15 kt. Seas 3 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 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 less than 10 kt. Seas 3 to 5 ft. .WED...NE 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. Seas 5 to 7 ft. .THU...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .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 6 to 9 ft. .MON...NE winds 10 to 20 kt. Seas 6 to 9 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft. .TUE...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 6 to 9 ft. .TUE NIGHT...E winds less than 10 kt. Seas 6 to 9 ft. .WED...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 6 to 9 ft. .WED NIGHT...NE winds less than 10 kt. Seas 6 to 8 ft. .THU...E winds 10 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 kt. Seas 5 to 7 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .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, increasing to 10 to 15 kt after midnight. Seas 5 to 7 ft. .THU...E winds less than 10 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A stationary front extends from 23N55W to 22N59W then W-NW through the NW Bahamas and across S Florida. This front will weaken tonight and dissipate on Sun. Strong to gale- force E-SE winds are noted N of this boundary from 25N to 30N W of 76W early tonight, including the NW Bahamas and offshore Florida. Deepening low pressure in the E Gulf of Mexico will move NE and into Florida tonight, then move across the far NW Atlantic waters Sun and move N of the area Sun night. SE gales will develop offshore Florida later tonight and Sun, ahead of the low, then spread E and NE with time, ahead of a cold front that will trail this low. Behind the front, NW gales will also develop N of 28N by Sun night. Ahead of the low and the cold front tonight through Sun night, strong thunderstorms will likely produce locally higher winds and seas. The cold front will reach 30N75W to Central Cuba by Sun evening, then extend from 31N68W to Haiti by Mon night. The front will then stall into the middle of next week. ATLC waters from 27N to 31N W of 77W ...GALE WARNING... .TONIGHT...SE winds 30 to 40 kt. Seas 11 to 16 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 15 to 20 ft. .MON...W winds 20 to 30 kt, diminishing to 15 to 20 kt in the afternoon. 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 11 ft. .TUE NIGHT...NE winds 20 to 25 kt. Seas 8 to 9 ft. .WED...NE winds 15 to 25 kt. Seas 8 to 10 ft. .WED NIGHT...NE winds 15 to 20 kt. Seas 7 to 9 ft. .THU...NE winds 10 to 20 kt. Seas 7 to 9 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 7 to 9 ft. ATLC waters from 27N to 31N between 65W and 77W ...GALE WARNING... ...GALE CONDITIONS POSSIBLE... .TONIGHT...E winds 20 to 30 kt W of 70W, and E 15 to 25 kt elsewhere. W of 70W, seas 8 to 12 ft, building to 10 to 15 ft after midnight. Elsewhere, seas 7 to 10 ft. .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...W winds 15 to 25 kt W of 70W, and S 25 to 35 kt elsewhere. Seas 14 to 19 ft. .MON NIGHT...SW winds 15 to 25 kt. Seas 12 to 17 ft. .TUE...NW winds 15 to 25 kt. Seas 10 to 15 ft. .TUE NIGHT...N winds 15 to 25 kt. Seas 9 to 12 ft. .WED...N winds 20 to 30 kt. Seas 10 to 14 ft. .WED NIGHT...N winds 20 to 30 kt. Seas 10 to 15 ft. .THU...N winds 15 to 25 kt. Seas 11 to 16 ft. .THU NIGHT...N winds 15 to 25 kt. Seas 11 to 16 ft. Bahamas N of 22N ...GALE WARNING... .TONIGHT...SE winds 25 to 35 kt. Seas 6 to 9 ft. .SUN...S winds 20 to 30 kt. Seas 6 to 9 ft. .SUN NIGHT...W winds 10 to 20 kt. Seas 5 to 7 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 3 to 5 ft. .TUE NIGHT...NE winds 15 to 25 kt. Seas 4 to 6 ft. .WED...NE winds 15 to 25 kt. Seas 5 to 7 ft. .WED NIGHT...NE winds 15 to 25 kt. Seas 6 to 8 ft. .THU...NE winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. ATLC waters from 22N to 27N between 65W and the Bahamas ...GALE WARNING... .TONIGHT...E winds 20 to 25 kt. Seas 10 to 15 ft W of 70W, and 9 to 12 ft elsewhere. .SUN...SE winds 25 to 35 kt. Seas 11 to 15 ft W of 70W, and 9 to 12 ft elsewhere. .SUN NIGHT...SE winds 20 to 30 kt. Seas 10 to 14 ft. .MON...W winds 10 to 20 kt W of 70W, and SE 15 to 25 kt elsewhere. Seas 9 to 14 ft. .MON NIGHT...SW winds 10 to 20 kt. Seas 8 to 12 ft. .TUE...NE 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 12 ft. .WED NIGHT...N winds 15 to 25 kt. Seas 10 to 13 ft. .THU...N winds 15 to 20 kt. Seas 11 to 13 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 10 to 12 ft. ATLC waters S of 22N W of 65W .TONIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft. .SUN...SE winds 10 to 20 kt. Seas 6 to 9 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 5 to 7 ft. .TUE...NE winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 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. .THU...NE winds 10 to 20 kt. Seas 8 to 11 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. ATLC waters from 19N to 22N between 55W and 65W .TONIGHT...NE winds 15 to 20 kt. Seas 7 to 10 ft. .SUN...NE winds 15 to 20 kt. Seas 8 to 10 ft. .SUN NIGHT...E winds 15 to 20 kt. Seas 9 to 10 ft. .MON...E winds 15 to 20 kt. Seas 9 to 10 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. .TUE...NE winds 10 to 15 kt. Seas 8 to 12 ft. .TUE NIGHT...NE winds less than 10 kt. Seas 8 to 12 ft. .WED...NE winds less than 10 kt, shifting to NW in the afternoon. Seas 9 to 11 ft. .WED NIGHT...NW winds less than 10 kt. Seas 8 to 10 ft. .THU...N winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 7 to 10 ft. .THU NIGHT...N winds 10 to 15 kt, shifting to NE after midnight. Seas 7 to 10 ft.