497 FZNT31 KNHC 052040 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL Issued by NWS Ocean Prediction Center Washington DC 340 PM EST Wed Mar 5 2025 Marine Weather HF Voice Broadcast for the Tropical N Atlantic from 07N to 19N W of 55W, the N Atlantic from 19N to 31N W of 55W including the 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 W of 55W .SYNOPSIS...Broad ridge north of the area will support trade winds pulsing to locally strong speeds offshore of Colombia and in the Gulf of Venezuela each night and morning through the forecast period. Seas may approach 8 ft during the strongest winds. A cold front is moving quickly across the SE Gulf of America this afternoon and will enter the northwestern Caribbean tonight. The front will then gradually weaken, with moderate to locally fresh N to NE winds expected behind the frontal boundary through Thu morning. Another cold front will enter the Gulf of America on Sat causing fresh to strong SE winds in the Gulf of Honduras Sat night into Sun. NW Caribbean W of 85W .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU...NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. .SAT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...SE winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...SE winds less than 10 kt, shifting to NE after midnight. Seas 3 to 5 ft. .MON...N winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...N winds 10 to 20 kt. Seas 6 to 8 ft. Caribbean N of 15N between 72W and 85W .TONIGHT...NE winds less than 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. .THU...NE winds less than 10 kt S of 18N, and N 10 to 15 kt elsewhere. Seas 2 ft or less, building to 3 ft in the afternoon. .THU NIGHT...S of 18N, NE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Elsewhere, NE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...S of 18N, E winds 10 to 15 kt. Elsewhere, NE winds 10 to 15 kt, shifting to E in the afternoon. Seas 3 to 4 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...E winds 10 to 15 kt. Seas 3 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 3 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .MON...SE winds less than 10 kt. Seas 3 to 4 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. Caribbean from 11N to 15N W of 72W .TONIGHT...NE winds 10 to 20 kt within 90 nm of coast of Colombia, and NE 10 to 15 kt elsewhere. Seas 3 to 5 ft. .THU...NE winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...NE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. SW Caribbean S of 11N .TONIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .THU...N winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .THU NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .FRI...NE winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...N winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft. .MON...N winds less than 10 kt. Seas 3 to 5 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. Caribbean between 64W and 72W .TONIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 4 ft. .THU...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 4 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 5 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 4 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .THU...SE winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 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. .SUN...E winds 10 to 15 kt. Seas 4 to 6 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...E winds 10 to 15 kt. Seas 4 to 6 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. .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 4 to 6 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...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 15 kt. Seas 4 to 6 ft. .MON...E winds 10 to 15 kt. Seas 5 to 7 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...Strong S winds will occur this morning north of 27N and west of 75W ahead of a cold front moving through the southeastern United States. S to SW winds will strengthen to gale force by late morning to early afternoon offshore of NE Florida as the front pushes off the coast and rapidly progresses eastward. Gale force winds will continue along and ahead of the front through Thu night north of 29N. Behind the front, gale force NW winds are expected Thu morning through Thu night north of 29N. N to NW swell associated with this system will propagate southeastward through late week, producing rough seas north of 25N through Thu, and north of 21N through Fri. Peak seas of 15 to 19 ft are anticipated north of 27N between 78W and 60W through late this week. The storm system will progress eastward across the central Atlantic through Fri before lifting north and east of the forecast waters. Elsewhere, fresh to strong NE winds and rough seas will prevail north of a stationary front today, extending from 31N46W to 21N66W. Otherwise, moderate to fresh trades and rough seas will prevail south of 25N this week. ATLC waters from 27N to 31N W of 77W ...GALE WARNING... .TONIGHT...W winds 25 to 35 kt. Seas 8 to 13 ft. .THU...W winds 25 to 35 kt. Seas 11 to 16 ft. .THU NIGHT...NW winds 15 to 25 kt. Seas 8 to 13 ft, subsiding to 7 to 10 ft after midnight. .FRI...NW winds 10 kt, shifting to SW less than 10 kt in the afternoon. Seas 5 to 7 ft. .FRI NIGHT...SW winds 10 to 20 kt. Seas 3 to 5 ft. .SAT...SW winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...SW winds 10 to 20 kt. Seas 3 to 5 ft. .SUN...SW winds 10 to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...W winds 15 to 20 kt. Seas 3 to 5 ft. .MON...NW winds 10 to 15 kt. Seas 6 to 8 ft. .MON NIGHT...N winds 10 to 15 kt. Seas 7 to 9 ft, building to 9 to 14 ft after midnight. ATLC waters from 27N to 31N between 65W and 77W ...GALE WARNING... .TONIGHT...S winds 25 to 35 kt W of 70W, and SE 10 to 20 kt elsewhere. Seas 7 to 10 ft, building to 8 to 13 ft after midnight. .THU...W winds 25 to 35 kt W of 70W, and S 20 to 30 kt elsewhere. Seas 11 to 16 ft W of 70W, and 8 to 11 ft elsewhere. .THU NIGHT...NW winds 20 to 30 kt W of 70W, and W 20 to 30 kt elsewhere. Seas 13 to 18 ft W of 70W, and 11 to 16 ft elsewhere. .FRI...W of 70W, NW winds 10 to 20 kt, becoming W less than 10 kt in the afternoon,Seas 9 to 14 ft, subsiding to 8 to 11 ft in the afternoon. Elsewhere, NW winds 15 to 25 kt, diminishing to 10 to 15 kt in the afternoon,Seas 12 to 17 ft. .FRI NIGHT...W winds less than 10 kt, shifting to SW after midnight. Seas 8 to 11 ft. .SAT...SW winds 10 to 20 kt. Seas 6 to 9 ft. .SAT NIGHT...SW winds 10 to 20 kt. Seas 6 to 9 ft. .SUN...SW winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...SW winds 10 to 20 kt. Seas 5 to 7 ft. .MON...W winds 10 to 20 kt. Seas 6 to 8 ft. .MON NIGHT...N winds 10 to 15 kt. Seas 8 to 11 ft. Bahamas N of 22N .TONIGHT...S winds 10 to 20 kt. Seas 3 to 5 ft. .THU...NW winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...E winds less than 10 kt. Seas 4 to 6 ft. .FRI NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .SAT...S winds less than 10 kt. Seas 3 to 4 ft. .SAT NIGHT...SE winds less than 10 kt. Seas 2 ft or less, building to 3 ft after midnight. .SUN...S winds 10 to 15 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. .SUN NIGHT...S winds less than 10 kt, shifting to SW after midnight. Seas 2 ft or less. .MON...SW winds 10 to 15 kt, shifting to W in the afternoon. Seas 2 ft or less, building to 3 ft in the afternoon. .MON NIGHT...N winds less than 10 kt. Seas 4 to 6 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TONIGHT...SE winds 10 to 15 kt. Seas 6 to 9 ft. .THU...SW winds 15 to 25 kt W of 70W, and S 10 to 20 kt elsewhere. W of 70W, seas 6 to 8 ft, building to 8 to 11 ft in the afternoon. Elsewhere, seas 6 to 8 ft. .THU NIGHT...NW winds 15 to 25 kt W of 70W, and W 10 to 20 kt elsewhere. Seas 8 to 13 ft W of 70W, and 8 to 11 ft elsewhere. .FRI...NW winds 10 to 15 kt, shifting to N in the afternoon. Seas 8 to 13 ft. .FRI NIGHT...NE winds less than 10 kt. Seas 7 to 10 ft. .SAT...E winds 10 kt in the morning, becoming variable winds less than 10 kt. Seas 6 to 9 ft. .SAT NIGHT...Variable winds less than 10 kt, becoming SE less than 10 kt after midnight. Seas 5 to 7 ft. .SUN...S winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. .MON...SW winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...SW winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 5 to 7 ft. ATLC waters S of 22N W of 65W .TONIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 5 to 7 ft. .THU...S winds less than 10 kt. Seas 4 to 6 ft. .THU NIGHT...NW winds less than 10 kt. Seas 4 to 6 ft. .FRI...NW winds less than 10 kt, shifting to N in the afternoon. Seas 4 to 6 ft. .FRI NIGHT...NE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 5 to 7 ft. .SAT...NE winds less than 10 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .SUN...E winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .MON...SE winds less than 10 kt. Seas 3 to 4 ft. .MON NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. ATLC waters from 19N to 22N between 55W and 65W .TONIGHT...SE winds 10 to 15 kt. Seas 7 to 8 ft. .THU...SE winds 10 to 15 kt. Seas 6 to 7 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 6 to 7 ft. .FRI...SE winds less than 10 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds less than 10 kt. Seas 5 to 7 ft. .SAT...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 6 to 9 ft. .SAT NIGHT...E winds less than 10 kt. Seas 6 to 8 ft. .SUN...E winds 10 kt. Seas 6 to 7 ft. .SUN NIGHT...E winds 10 kt. Seas 5 to 7 ft. .MON...SE winds 10 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 10 kt. Seas 4 to 5 ft.