840 FZNT31 KNHC 091540 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1040 AM EST Tue Jan 9 2024 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...The pressure gradient between high pressure centered northeast of the basin and lower pressure over Colombia is supporting near-gale force NE to ENE winds within 90 nm of the coast of Colombia. Strong winds will prevail elsewhere in the central Caribbean through tonight. Fresh to strong SE to S winds in the northwestern Caribbean west of 83W will continue through today as a strong cold front traverses the Gulf of Mexico. The front will weaken significantly as it reaches the Yucatan Channel tonight, and winds in the NW Caribbean will diminish Wed and Wed night as high pressure shifts eastward across the central Gulf of Mexico. In the central Caribbean, winds will diminish to mainly fresh speeds by Wed afternoon, although winds will still pulse to strong at night in the south-central basin through late week. Southeasterly winds will increase over the western Caribbean to fresh to strong Thu night through Fri, as a cold front approaches the Yucatan Channel. NW Caribbean W of 85W .TODAY...SE winds 15 to 25 kt. Seas 6 to 8 ft. .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED...NE winds 10 to 15 kt, shifting to E in the afternoon. Seas 4 to 6 ft. .WED NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft. .THU...SE winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...SE winds 15 to 25 kt. Seas 5 to 7 ft. .FRI NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...SW winds 10 to 15 kt, shifting to N in the afternoon. Seas 4 to 6 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. Caribbean N of 15N between 72W and 85W .TODAY...E winds 15 to 25 kt S of 18N, and SE 10 to 20 kt elsewhere. Seas 6 to 9 ft. .TONIGHT...E winds 15 to 25 kt S of 18N, and SE 10 to 15 kt elsewhere. Seas 6 to 9 ft S of 18N, and 5 to 7 ft elsewhere. .WED...SE winds 10 to 20 kt. Seas 6 to 9 ft S of 18N, and 4 to 6 ft elsewhere. .WED NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft S of 18N, and 3 to 5 ft elsewhere. .THU...E winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...E 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 15 kt. Seas 4 to 6 ft. .SAT...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Caribbean from 11N to 15N W of 72W .TODAY...E winds 15 to 25 kt. Seas 7 to 10 ft. .TONIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft. .WED...E winds 15 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 6 to 9 ft. .WED NIGHT...E winds 15 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 6 to 9 ft. .THU...E winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 9 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. SW Caribbean S of 11N .TODAY...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 7 to 10 ft. .TONIGHT...N winds less than 10 kt. Seas 6 to 8 ft. .WED...Variable winds less than 10 kt, becoming NW less than 10 kt in the afternoon. Seas 5 to 7 ft. .WED NIGHT...N winds less than 10 kt. Seas 4 to 6 ft. .THU...N winds less than 10 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 5 to 7 ft. .FRI NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft. .SAT...N winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 5 ft. .SAT NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. Caribbean between 64W and 72W .TODAY...E winds 15 to 25 kt. Seas 3 to 5 ft Gulf of Venezuela, and 6 to 9 ft elsewhere. .TONIGHT...Gulf of Venezuela, E winds 20 to 30 kt, diminishing to 15 to 20 kt after midnight. Elsewhere, E winds 15 to 25 kt. Seas 3 to 5 ft Gulf of Venezuela, and 6 to 9 ft elsewhere. .WED...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela, and 6 to 9 ft elsewhere. .WED NIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 3 to 5 ft Gulf of Venezuela, and 6 to 8 ft elsewhere. .THU...E winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 20 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 20 kt. Seas 4 to 6 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...E winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .WED...E winds 10 to 20 kt. Seas 7 to 10 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .THU...E winds 10 to 20 kt. Seas 7 to 10 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .FRI...E winds 10 to 20 kt. Seas 7 to 10 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .SAT...E winds 10 to 15 kt. Seas 6 to 8 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...E winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .WED...E winds 10 to 20 kt. Seas 6 to 9 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .THU...E winds 10 to 20 kt. Seas 7 to 10 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .FRI...E winds 10 to 15 kt. Seas 7 to 10 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .SAT...E winds 10 to 20 kt. Seas 6 to 9 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A cold front extends from 23N55W through the central Bahamas. Southeast winds are reaching gale force ahead of a cold front and will continue through late tonight or early Wed morning. Frequent gusts to storm force are expected this evening north of 30N and west of 74W, where a Storm Warning is in effect. The cold front will move off NE Florida early this evening. By Wed evening, the front will be weakening as it reaches from near 31N68W to the central Bahamas. A squall line containing severe thunderstorms is likely to occur along or just prior to the frontal passage offshore Florida from late this afternoon through tonight. Seas will subside Thu as high pressure builds over the western Atlantic. Southerly winds begin to increase east of northern and central Florida late Fri as the next frontal system approaches from the W. It is expected to reach from near 31N77W to South Florida early Sat and from near 31N70W to the central Bahamas and to western Cuba by late Sat. Fresh to strong winds and building seas are expected on either side of this front. ATLC waters from 27N to 31N W of 77W ...STORM WARNING... .TODAY...SE winds 25 to 35 kt, becoming S 30 to 40 kt in the afternoon. Seas 10 to 15 ft. .TONIGHT...SW winds 35 to 50 kt. Seas 12 to 18 ft. .WED...W winds 15 to 25 kt. Seas 10 to 15 ft, subsiding to 8 to 11 ft in the afternoon. .WED NIGHT...W winds 10 to 15 kt. Seas 6 to 9 ft. .THU...W winds 10 to 15 kt, shifting to NW in the afternoon. Seas 4 to 6 ft. .THU NIGHT...E winds less than 10 kt, shifting to SE after midnight. Seas 3 to 4 ft. .FRI...SE winds 15 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...SW winds 20 to 30 kt. Seas 7 to 10 ft. .SAT...W winds 15 to 25 kt. Seas 8 to 11 ft. .SAT NIGHT...N winds 15 to 20 kt. Seas 7 to 10 ft. ATLC waters from 27N to 31N between 65W and 77W ...GALE WARNING... .TODAY...SE winds 20 to 30 kt W of 70W, and E 15 to 20 kt elsewhere. Seas 9 to 12 ft. .TONIGHT...S winds 25 to 35 kt W of 70W, and SE 20 to 25 kt elsewhere. Seas 11 to 16 ft W of 70W, and 9 to 11 ft elsewhere. .WED...W of 70W, SW winds 20 to 30 kt, becoming W 10 to 20 kt in the afternoon. Elsewhere, S winds 15 to 25 kt. Seas 10 to 15 ft W of 70W, and 8 to 12 ft elsewhere. .WED NIGHT...W winds 10 to 20 kt. Seas 8 to 11 ft. .THU...NW 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 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...S 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 10 to 20 kt. Seas 7 to 10 ft. Bahamas N of 22N .TODAY...SE winds 15 to 25 kt. Seas 5 to 7 ft. .TONIGHT...S winds 10 to 20 kt. Seas 4 to 6 ft. .WED...S winds 10 to 15 kt, shifting to SW in the afternoon. Seas 4 to 6 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. .THU...E winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...SE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...SW winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...N winds less than 10 kt, shifting to NE after midnight. Seas 3 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...SE winds 15 to 25 kt W of 70W, and E 15 to 20 kt elsewhere. Seas 8 to 10 ft. .TONIGHT...SE winds 15 to 25 kt. Seas 9 to 10 ft. .WED...S winds 10 to 20 kt. Seas 7 to 9 ft. .WED NIGHT...S winds less than 10 kt W of 70W, and SE 10 to 15 kt elsewhere. Seas 6 to 8 ft. .THU...SE winds less than 10 kt. Seas 5 to 7 ft. .THU NIGHT...E winds less than 10 kt. Seas 5 to 6 ft. .FRI...SE winds 10 to 15 kt. Seas 5 to 6 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 5 to 6 ft. .SAT...S winds 10 to 15 kt. Seas 5 to 6 ft. .SAT NIGHT...S winds less than 10 kt. Seas 4 to 5 ft. ATLC waters S of 22N W of 65W .TODAY...E winds 10 to 20 kt. Seas 6 to 8 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .WED...SE winds 10 to 15 kt. Seas 6 to 8 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 5 to 7 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 4 to 6 ft. .SAT...SE winds 10 to 15 kt, shifting to E in the afternoon. Seas 4 to 6 ft. .SAT NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...NE winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...E winds 15 to 25 kt. Seas 8 to 13 ft. .WED...E winds 15 to 25 kt. Seas 9 to 13 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 9 to 12 ft. .THU...E winds 10 to 20 kt. Seas 8 to 11 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 7 to 10 ft. .FRI...E winds 10 to 15 kt. Seas 6 to 9 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .SAT...E winds 10 to 15 kt. Seas 6 to 7 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.