000 FZNT31 KNHC 081917 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 317 PM EDT Tue Apr 8 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...A slow moving cold front will move across the northwest Caribbean through Wed, then will gradually dissipate from eastern Cuba to the Honduras-Nicaragua border Thu. Fresh to strong NW to N winds and moderate to locally rough seas will follow the front across the Yucatan Channel and far northwest Caribbean through early Wed. Elsewhere, moderate to fresh trades will prevail in the south- central Caribbean into late week, with locally strong winds pulsing off Colombia tonight. Farther east, large N swell will impact Atlantic waters E of the Lesser Antilles through Thu. Looking ahead, fresh to strong N winds and building seas will follow the remnants of the front off the coast of Nicaragua late Fri into Sun. NW Caribbean W of 85W .TONIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. .WED...N winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. .THU...N winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...N winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...N winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Caribbean N of 15N between 72W and 85W .TONIGHT...E winds 10 to 15 kt S of 18N, and SW less than 10 kt elsewhere. Seas 3 to 5 ft. .WED...NE winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...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...NE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN 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. Seas 5 to 7 ft. .WED...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 20 kt within 90 nm of coast of Colombia, and NE 10 to 15 kt elsewhere. Seas 4 to 5 ft. .THU...NE winds 10 to 15 kt. Seas 4 to 5 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft. .FRI...NE winds 10 to 15 kt. Seas 4 to 5 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...NE winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. SW Caribbean S of 11N .TONIGHT...N winds less than 10 kt. Seas 4 to 6 ft. .WED...N winds less than 10 kt. Seas 3 to 5 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 10 to 15 kt. Seas 3 to 4 ft. .FRI...N winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .FRI NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...N winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...N winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. Caribbean between 64W and 72W .TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .WED...E winds 10 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 3 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .WED NIGHT...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .THU...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 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 5 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .SUN...E winds 10 to 15 kt. Seas 4 to 5 ft. .SUN 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...E winds 10 to 15 kt. Seas 6 to 8 ft. .WED...E winds 10 to 15 kt. Seas 6 to 9 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...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 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 6 to 8 ft. .WED...E winds 10 to 15 kt. Seas 6 to 9 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .THU...E winds 10 to 15 kt. Seas 6 to 8 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 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 4 to 6 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A cold front extends from near 31N74W to near Fort Lauderdale, Florida. Along and just ahead of the front, scattered strong thunderstorms are producing locally strong to near gale force winds. This front will move east into Wed, then gradually stall as low pressure forms along it just NE of the Bahamas. This low will move ENE into late week before weakening and dissipating as the front also dissipates. NE winds will develop N of the Bahamas tonight and increase to gale force N of 28N between 70W and 80W Wed morning, then prevail through Wed evening. Very rough seas will build in the area of gales. As the low moves away from the area and weakens Thu, conditions will improve. Looking ahead, a weaker front will move off the coast of Florida late Fri, followed by moderate to fresh NW winds. ATLC waters from 27N to 31N W of 77W .TONIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .WED...NE winds 15 to 25 kt. Seas 4 to 6 ft, building to 6 to 9 ft in the afternoon. .WED NIGHT...NE winds 15 to 25 kt. Seas 8 to 11 ft. .THU...NE winds 10 to 20 kt. Seas 8 to 12 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft. .FRI...SE winds less than 10 kt, shifting to SW in the afternoon. Seas 4 to 6 ft. .FRI NIGHT...SW winds 10 to 15 kt. Seas 4 to 5 ft. .SAT...W winds 10 to 15 kt. Seas 4 to 5 ft. .SAT NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...NW winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters from 27N to 31N between 65W and 77W ...GALE WARNING WED INTO WED NIGHT... .TONIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft. .WED...SW winds 25 to 35 kt W of 70W, and S 10 to 15 kt elsewhere. W of 70W, seas 6 to 8 ft, building to 8 to 11 ft in the afternoon. Elsewhere, seas 4 to 6 ft. .WED NIGHT...W of 70W, E winds 15 to 25 kt. Elsewhere, S winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 8 to 13 ft W of 70W, and 5 to 7 ft elsewhere. .THU...SE winds 10 to 20 kt. Seas 8 to 11 ft W of 70W, and 4 to 6 ft elsewhere. .THU NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .FRI...S winds less than 10 kt. Seas 4 to 6 ft. .FRI NIGHT...S winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 5 ft. .SAT...S winds 10 to 15 kt. Seas 4 to 5 ft. .SAT NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...W winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...NW winds 10 to 15 kt. Seas 5 to 7 ft. Bahamas N of 22N .TONIGHT...S winds less than 10 kt. Seas 3 ft. .WED...SW winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 ft. .WED NIGHT...NW winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 ft. .THU...N winds less than 10 kt. Seas 3 to 5 ft. .THU NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. .FRI...NE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...Variable winds less than 10 kt, becoming E less than 10 kt after midnight. Seas 3 ft in the evening, subsiding to 2 ft or less. .SAT...NW winds less than 10 kt. Seas 2 ft or less. .SAT NIGHT...NW winds less than 10 kt. Seas 2 ft or less. .SUN...N winds less than 10 kt. Seas 2 ft or less. .SUN NIGHT...NE winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft after midnight. ATLC waters from 22N to 27N between 65W and the Bahamas .TONIGHT...SE winds 10 to 15 kt. Seas 5 to 6 ft. .WED...S winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...S winds 10 to 15 kt. Seas 4 to 5 ft. .THU...W of 70W, SW winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Elsewhere, SE winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft. .FRI...SE winds less than 10 kt. Seas 4 to 6 ft. .FRI NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 5 ft. .SAT...S winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...W winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...NW winds less than 10 kt, shifting to N after midnight. Seas 3 to 5 ft. ATLC waters S of 22N W of 65W .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED...SE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 5 ft. .FRI...E winds less than 10 kt. Seas 3 to 5 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 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. ATLC waters from 19N to 22N between 55W and 65W .TONIGHT...E winds 10 to 15 kt. Seas 7 to 9 ft. .WED...E winds 10 to 15 kt. Seas 6 to 8 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 6 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 6 ft. .FRI...E winds 10 to 15 kt. Seas 5 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 5 ft. .SAT...E winds 10 to 15 kt. Seas 5 to 6 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. .SUN...E winds 10 to 15 kt. Seas 5 to 6 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.