348 FZNT31 KNHC 190339 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1039 PM EST Mon Dec 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 across the Windward Passage to near 10N78W. Fresh to strong NW to N winds and seas of to 9 ft follow the front. The front will remain nearly stationary on Tue, then drift SE across Hispaniola Wed before gradually dissipating late Wed. Fresh to strong winds behind this front will become N to NE Tue night through Wed night. High pressure will build SE across the western Atlantic Wed night through Fri to produce a broad area of fresh to strong NE winds in the lee of Cuba and the Windward Passage. At the same time, fresh to locally strong trades are expected in the south- central Caribbean, including the Gulf of Venezuela, mainly at night. NW Caribbean W of 85W .TONIGHT...NW winds 10 to 20 kt. Seas 5 to 7 ft. .TUE...N 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 15 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 5 to 7 ft. .FRI...NE winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Caribbean N of 15N between 72W and 85W .TONIGHT...N winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...N winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...NE winds 10 to 20 kt S of 18N, and NE 15 to 25 kt elsewhere. 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. .FRI...NE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Caribbean from 11N to 15N W of 72W .TONIGHT...NE winds 10 kt within 90 nm of coast of Colombia, and N 15 to 25 kt elsewhere. Seas 4 to 5 ft within 90 nm of coast of Colombia, and 6 to 8 ft elsewhere. .TUE...NE winds 10 kt within 90 nm of coast of Colombia, and N 15 to 25 kt elsewhere. Seas 4 to 5 ft within 90 nm of coast of Colombia, and 6 to 9 ft elsewhere. .TUE NIGHT...NE winds 10 to 15 kt within 90 nm of coast of Colombia, and NE 15 to 25 kt elsewhere. Seas 5 to 6 ft within 90 nm of coast of Colombia, and 6 to 9 ft elsewhere. .WED...NE winds 10 to 20 kt. Seas 5 to 6 ft within 90 nm of coast of Colombia, and 6 to 9 ft elsewhere. .WED NIGHT...NE winds 10 to 20 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 6 to 7 ft. .FRI...NE winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .SAT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. SW Caribbean S of 11N .TONIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. .TUE...N winds 15 to 25 kt. Seas 7 to 10 ft. .TUE NIGHT...N winds 15 to 25 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 6 to 8 ft. .THU...NE winds 10 to 15 kt. Seas 6 to 7 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 6 to 7 ft. .FRI...NE winds 10 to 15 kt. Seas 6 to 8 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .SAT...NE winds 10 to 15 kt. Seas 6 to 9 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. Caribbean between 64W and 72W .TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .TUE...E winds 10 to 15 kt. Seas 3 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .WED...NE winds 10 to 15 kt. Gulf of Venezuela, seas 2 ft or less, building to 3 ft in the afternoon. 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 5 to 7 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TONIGHT...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...Variable winds less than 10 kt. Seas 6 to 9 ft. .WED NIGHT...NE winds less than 10 kt. Seas 6 to 9 ft. .THU...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 6 to 9 ft. .THU NIGHT...NE winds less than 10 kt. Seas 5 to 7 ft. .FRI...E winds less than 10 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds less than 10 kt. Seas 5 to 7 ft. .SAT...E winds less than 10 kt. Seas 6 to 8 ft. .SAT NIGHT...E winds less than 10 kt. Seas 6 to 9 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TONIGHT...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 6 to 8 ft. .WED...E winds less than 10 kt. Seas 6 to 8 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .THU...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A western Atlantic cold front extends through 31N69W to the Windward Passage. SE to S gale-force winds are ahead of the front N of 26N and E of front to 66W, and will diminish below gale-force after midnight. Behind the front, fresh to strong W winds are noted N of 30N. A band of showers and thunderstorms persists along and ahead of the cold front to 67W. The front is forecast to reach from 31N69W to Haiti Tue morning, and from near Bermuda to the N coast of Hispaniola near 20N70W by Wed morning. Strong high pressure will build into the western Atlantic behind the front Tue night through early Thu to produce fresh to strong winds, gradually diminishing to moderate to fresh Thu through Fri. ATLC waters from 27N to 31N W of 77W .TONIGHT...NW winds 15 to 25 kt. Seas 8 to 11 ft. .TUE...N winds 10 to 20 kt. Seas 8 to 10 ft. .TUE NIGHT...NE winds 15 to 20 kt. Seas 8 to 10 ft. .WED...NE winds 10 to 20 kt. Seas 7 to 10 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 7 to 9 ft. .THU...NE winds 10 to 15 kt. Seas 7 to 9 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 7 to 9 ft. .FRI...NE winds 10 to 15 kt. Seas 7 to 9 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 7 to 9 ft. .SAT...E winds 10 to 15 kt. Seas 7 to 9 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. ATLC waters from 27N to 31N between 65W and 77W .TONIGHT...W winds 10 to 15 kt W of 70W, and S 20 to 30 kt elsewhere. Seas 11 to 16 ft. .TUE...NW winds 10 to 20 kt. Seas 9 to 13 ft W of 70W, and 11 to 15 ft elsewhere. .TUE NIGHT...N winds 15 to 25 kt W of 70W, and NW 15 to 25 kt elsewhere. Seas 10 to 13 ft. .WED...N winds 15 to 25 kt. Seas 9 to 13 ft W of 70W, and 12 to 14 ft elsewhere. .WED NIGHT...N winds 15 to 20 kt. Seas 9 to 14 ft. .THU...N winds 10 to 20 kt. Seas 10 to 14 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 9 to 14 ft. .FRI...N winds 10 to 15 kt. Seas 9 to 14 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 9 to 12 ft. .SAT...NE winds 10 to 15 kt. Seas 8 to 10 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 8 to 9 ft. Bahamas N of 22N .TONIGHT...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 15 to 25 kt. Seas 5 to 7 ft. .WED...NE winds 15 to 25 kt. Seas 6 to 8 ft. .WED NIGHT...NE winds 15 to 25 kt. Seas 6 to 9 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. .FRI...NE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TONIGHT...SE winds 10 to 20 kt. Seas 8 to 13 ft. .TUE...NE winds 10 to 20 kt. Seas 8 to 12 ft. .TUE NIGHT...W of 70W, N winds 15 to 25 kt. Elsewhere, SE winds less than 10 kt, becoming N 10 to 20 kt after midnight. Seas 8 to 11 ft. .WED...N winds 15 to 25 kt. Seas 9 to 13 ft. .WED NIGHT...NE winds 15 to 25 kt. Seas 10 to 14 ft. .THU...NE winds 15 to 20 kt. Seas 11 to 13 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 10 to 11 ft. .FRI...NE winds 10 to 15 kt. Seas 9 to 11 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 9 to 11 ft. .SAT...NE winds 10 to 15 kt. Seas 9 to 10 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 8 to 9 ft. ATLC waters S of 22N W of 65W .TONIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft. .TUE...NE winds 10 to 20 kt. Seas 6 to 9 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 8 to 11 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. .FRI...NE winds 10 to 20 kt. Seas 7 to 10 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .SAT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. ATLC waters from 19N to 22N between 55W and 65W .TONIGHT...NE winds 10 to 20 kt. Seas 9 to 14 ft. .TUE...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 9 to 14 ft. .TUE NIGHT...NE winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 9 to 12 ft. .WED...NW winds less than 10 kt. Seas 10 to 11 ft. .WED NIGHT...NW winds less than 10 kt. Seas 9 to 10 ft. .THU...NW winds less than 10 kt. Seas 8 to 10 ft. .THU NIGHT...NW winds less than 10 kt, shifting to N after midnight. Seas 8 to 11 ft. .FRI...NE winds 10 to 15 kt. Seas 7 to 10 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 8 to 9 ft. .SAT...NE winds 10 to 15 kt. Seas 8 to 10 ft. .SAT NIGHT...NE winds 10 to 15 kt, shifting to E after midnight. Seas 8 to 9 ft.