526 FZNT31 KNHC 071500 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1100 AM EDT Mon Apr 7 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...Strong trade winds across the south central Caribbean and Gulf of Honduras will begin to diminish today as high pressure north of the area begins to shift eastward. A cold front is expected to reach the northwestern Caribbean Tue, and move slowly eastward, reaching from central Cuba to northeast Honduras Thu before stalling and dissipating. Fresh to locally strong northerly winds and rough seas will follow behind the front across the Yucatan Channel into Wed night then diminish. NW Caribbean W of 85W .THIS AFTERNOON...SE winds 10 to 20 kt. Seas 6 to 8 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...S winds less than 10 kt, shifting to NW in the afternoon. Seas 4 to 6 ft. .TUE NIGHT...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 15 kt. Seas 4 to 6 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 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. Caribbean N of 15N between 72W and 85W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...S of 18N, E winds 10 to 15 kt. Elsewhere, SE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 4 to 6 ft. .TUE...E winds 10 to 15 kt S of 18N, and S less than 10 kt elsewhere. Seas 5 to 7 ft S of 18N, and 3 to 4 ft elsewhere. .TUE NIGHT...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. Caribbean from 11N to 15N W of 72W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...E winds 15 to 20 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. .TUE NIGHT...E winds 15 to 20 kt within 90 nm of coast of Colombia, and NE 10 to 20 kt elsewhere. Seas 4 to 6 ft. .WED...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .THU...NE winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...NE winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 4 to 5 ft. SW Caribbean S of 11N .THIS AFTERNOON...NE winds less than 10 kt. Seas 5 to 7 ft. .TONIGHT...NE winds less than 10 kt. Seas 5 to 7 ft. .TUE...NE winds less than 10 kt. Seas 4 to 6 ft. .TUE NIGHT...N winds less than 10 kt. Seas 4 to 6 ft. .WED...N winds less than 10 kt. Seas 4 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 4 to 5 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 4 to 5 ft. .FRI...N winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. Caribbean between 64W and 72W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .TONIGHT...E winds 10 to 20 kt. Seas 3 to 5 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 20 kt. Seas 4 to 6 ft. .WED...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .THU...E winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI 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 .THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...E winds 10 to 15 kt. Seas 6 to 9 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft. .WED...E winds 10 to 15 kt. Seas 6 to 9 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 4 to 6 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...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 9 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. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A cold front extends along 20N E of 55W. N of the boundary, fresh N to NE winds and large N swell prevail. This swell will dominate through Wed. S of the boundary, a tight pressure gradient is supporting fresh trades off the north coast of Hispaniola and in the Windward Passage. Fresh to strong SW winds are increasing offshore NE Florida in advance of a cold front that is moving through the SE United States. This front will move off the coast late tonight, then stall from Bermuda to central Cuba by Wed. Strong NE winds and very rough seas will expand S behind the front to around 28N, with the potential for some gale conditions Wed or Wed night N and NE of the Bahamas. ATLC waters from 27N to 31N W of 77W ...GALE CONDITIONS POSSIBLE WED AND WED NIGHT... .THIS AFTERNOON...S winds 15 to 20 kt. Seas 5 to 7 ft. .TONIGHT...SW winds 15 to 25 kt. Seas 6 to 8 ft. .TUE...W winds 15 to 25 kt. Seas 6 to 8 ft. .TUE NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .WED...NE winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...NE winds 25 to 35 kt. Seas 7 to 10 ft. .THU...NE winds 10 to 20 kt. Seas 8 to 11 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft. .FRI...SW winds less than 10 kt. Seas 4 to 6 ft. .FRI NIGHT...SW winds less than 10 kt, shifting to W after midnight. Seas 4 to 5 ft. ATLC waters from 27N to 31N between 65W and 77W ...GALE CONDITIONS POSSIBLE WED AND WED NIGHT... .THIS AFTERNOON...S winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...S winds 10 to 20 kt. Seas 5 to 7 ft. .TUE...SW winds 10 to 20 kt. Seas 6 to 8 ft. .TUE NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft. .WED...S winds 10 to 15 kt. Seas 6 to 9 ft. .WED NIGHT...SE winds 20 to 30 kt. Seas 7 to 10 ft. .THU...SE winds 10 to 20 kt. Seas 6 to 9 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 6 to 9 ft. .FRI...S winds less than 10 kt. Seas 5 to 7 ft. .FRI NIGHT...S winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 5 ft. Bahamas N of 22N .THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 3 ft. .TUE...S winds 10 to 15 kt. Seas 3 ft. .TUE NIGHT...S winds less than 10 kt. Seas 3 ft. .WED...SW winds less than 10 kt. Seas 3 ft. .WED NIGHT...N winds less than 10 kt. 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 5 ft. .FRI NIGHT...Variable winds less than 10 kt, becoming SE less than 10 kt after midnight. Seas 3 ft in the evening, subsiding to 2 ft or less. ATLC waters from 22N to 27N between 65W and the Bahamas .THIS AFTERNOON...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...S winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .WED...S winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...SE winds less than 10 kt. Seas 4 to 5 ft. .THU...SE winds 10 to 15 kt. Seas 4 to 6 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. ATLC waters S of 22N W of 65W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...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 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 5 ft. ATLC waters from 19N to 22N between 55W and 65W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 6 to 8 ft. .TONIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft. .TUE...E winds 10 to 15 kt. Seas 6 to 9 ft. .TUE NIGHT...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 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 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.