472 FZNT31 KNHC 040907 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL Issued by NWS Ocean Prediction Center Washington DC 407 AM EST Tue Mar 4 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...Prevailing low pressure over northwestern Colombia will lead to pulsing fresh to locally strong NE to E winds through the Gulf of Venezuela and offshore of Colombia this week, with the strongest winds occurring each night and morning. Moderate to fresh NE winds are expected through early Wed across the Windward Passage and downwind of Cuba as the pressure gradient strengthens between a cold front in the central Atlantic, high pressure offshore of the eastern United States, and the Colombian low. Fresh to locally strong SE winds will be possible this evening into Wed in the Gulf of Honduras. Otherwise, moderate trade winds and slight to moderate seas are expected across the central and eastern Caribbean this week. NW Caribbean W of 85W .TODAY...SE winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. .WED...SE winds 10 to 20 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .THU...NE winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...SE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 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. Caribbean N of 15N between 72W and 85W .TODAY...E winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .WED...S of 18N, E winds 10 to 15 kt. Elsewhere, SE winds 10 to 15 kt, shifting to S in the afternoon. Seas 3 to 5 ft. .WED NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .THU...NE winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...NE winds less than 10 kt. Seas 2 ft or less. .FRI...E winds less than 10 kt. Seas 3 ft. .FRI NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 ft or less, building to 3 ft after midnight. .SAT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. Caribbean from 11N to 15N W of 72W .TODAY...E winds 10 to 20 kt within 90 nm of coast of Colombia, and E 10 to 15 kt elsewhere. Seas 4 to 6 ft. .TONIGHT...NE winds 15 to 20 kt within 90 nm of coast of Colombia, and E 10 to 15 kt elsewhere. Seas 4 to 6 ft. .WED...NE winds 10 to 20 kt within 90 nm of coast of Colombia, and E 10 to 15 kt elsewhere. Seas 4 to 6 ft. .WED NIGHT...E 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 5 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. SW Caribbean S of 11N .TODAY...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED...N winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...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...N winds less than 10 kt. Seas 3 to 4 ft. .FRI...N winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...NE winds less than 10 kt. Seas 4 to 6 ft. .SAT NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. Caribbean between 64W and 72W .TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...NE winds 15 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. .WED...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...NE winds 15 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 5 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 5 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 8 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .WED...E winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...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 5 to 7 ft. .FRI...E winds 10 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. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...E winds 10 to 15 kt. Seas 6 to 8 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .WED...E winds 10 to 15 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...Moderate to fresh N to NE winds and rough seas will occur north of 20N through midweek as a strong pressure gradient prevails between a cold front in the central Atlantic and high pressure just offshore of the eastern United States. Strong NE winds will be possible through the Bahamas and west of 65W this morning, with strong winds expanding farther east to 55W this afternoon into Wed. Elsewhere, winds will turn to the SE and strengthen offshore of Florida today as a strong storm system moves through the central and eastern United States. Widespread strong to near-gale force S winds and rough seas will be possible north of 27N and west of 75W tonight through Wed ahead of a cold front associated with the storm system. The cold front is forecast to move off the southeastern coast of the US on Wed, and local gale force winds and very rough seas will be possible surrounding the front as it moves eastward through Thu. Large N swell will propagate southeastward through late week, producing widespread rough seas north of 25N through Thu, and north of 22N through Fri. 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... ...GALE CONDITIONS POSSIBLE ON THU... .TODAY...SE winds 15 to 25 kt. Seas 6 to 9 ft. .TONIGHT...SE winds 20 to 30 kt. Seas 7 to 8 ft, building to 8 to 11 ft after midnight. .WED...S to SW winds 25 to 35 kt. Seas 8 to 12 ft. .WED NIGHT...W winds 20 to 30 kt. Seas 8 to 11 ft. .THU...W winds 20 to 30 kt. Seas 9 to 14 ft. .THU NIGHT...NW winds 15 to 25 kt, diminishing to 10 to 15 kt after midnight. Seas 7 to 10 ft. .FRI...Variable winds less than 10 kt, becoming SW 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 3 to 5 ft. .SAT NIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft. ATLC waters from 27N to 31N between 65W and 77W ...GALE WARNING... ...GALE CONDITIONS POSSIBLE ON THU... .TODAY...E winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft. .WED...S to SE winds 25 to 35 kt. Seas 6 to 9 ft. .WED NIGHT...S winds 25 to 35 kt W of 70W, and SE 15 to 25 kt elsewhere. Seas 8 to 11 ft. .THU...SW winds 20 to 30 kt. Seas 9 to 14 ft. .THU NIGHT...NW winds 20 to 30 kt. Seas 11 to 16 ft. .FRI...NW winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 9 to 14 ft. .FRI NIGHT...W winds less than 10 kt, shifting to SW after midnight. Seas 7 to 10 ft. .SAT...SW winds 10 to 20 kt. Seas 6 to 9 ft. .SAT NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft. Bahamas N of 22N .TODAY...E winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .WED...SE winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...S winds 10 to 20 kt. Seas 3 to 5 ft. .THU...W winds 10 to 20 kt. Seas 3 to 5 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...E winds less than 10 kt. Seas 3 to 5 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, increasing to 10 to 15 kt after midnight. Seas 3 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...NE winds 15 to 25 kt. Seas 8 to 11 ft. .TONIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. .WED...E winds 10 to 20 kt. Seas 7 to 10 ft. .WED NIGHT...SE winds 10 to 15 kt. Seas 6 to 7 ft W of 70W, and 7 to 10 ft elsewhere. .THU...SW winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...W winds 10 to 20 kt. Seas 6 to 9 ft. .FRI...N winds less than 10 kt. Seas 7 to 10 ft. .FRI NIGHT...E winds less than 10 kt. Seas 7 to 10 ft. .SAT...SE winds less than 10 kt. Seas 6 to 8 ft. .SAT NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft. ATLC waters S of 22N W of 65W .TODAY...E winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .WED...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 5 to 7 ft. .WED NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft. .THU...S winds less than 10 kt. Seas 4 to 6 ft. .THU NIGHT...W winds less than 10 kt. Seas 3 to 5 ft. .FRI...NE winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .SAT...E winds less than 10 kt. 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...SE winds 10 to 15 kt. Seas 6 to 8 ft. .TONIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .WED...SE winds 10 to 15 kt. Seas 7 to 8 ft. .WED NIGHT...SE winds 10 to 15 kt. Seas 7 to 8 ft. .THU...SE winds 10 to 15 kt. Seas 6 to 8 ft. .THU NIGHT...SE winds 10 kt. Seas 6 to 7 ft. .FRI...SE winds 10 kt. Seas 5 to 6 ft. .FRI NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .SAT...E winds 10 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 kt. Seas 5 to 7 ft.