000 FZNT31 KNHC 111505 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1105 AM EDT Sun May 11 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...Widespread fresh to strong trade winds and rough to very rough seas are expected across the central Caribbean, including through the Windward Passage, through early Wed as a strong pressure gradient prevails between high pressure to the north and the Colombian low. Periods of near-gale force winds will be possible offshore of Colombia and through the Gulf of Venezuela each afternoon and night. Farther east, pulsing moderate to fresh E winds and locally rough seas are likely across the Atlantic Passages into the eastern Caribbean through midweek. Looking ahead, winds and seas will slowly diminish by late week. NW Caribbean W of 85W .THIS AFTERNOON...E winds 10 to 15 kt, shifting to SE in the afternoon. Seas 3 to 4 ft. .TONIGHT...E winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 3 to 4 ft. .MON...N winds less than 10 kt. Seas 3 to 4 ft. .MON NIGHT...NE winds 10 to 15 kt, shifting to E after midnight. Seas 3 to 4 ft. .TUE...E winds less than 10 kt. Seas 3 to 4 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .WED...E winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Caribbean N of 15N between 72W and 85W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 6 to 8 ft S of 18N, and 3 to 5 ft elsewhere. .TONIGHT...E winds 10 to 20 kt S of 18N, and E less than 10 kt elsewhere. Seas 6 to 9 ft S of 18N, and 3 to 5 ft elsewhere. .MON...E winds 10 to 20 kt S of 18N, and E less than 10 kt elsewhere. Seas 6 to 9 ft S of 18N, and 3 to 5 ft elsewhere. .MON NIGHT...S of 18N, E winds 10 to 20 kt. Elsewhere, SE winds less than 10 kt, shifting to NE after midnight. Seas 6 to 8 ft S of 18N, and 3 to 5 ft elsewhere. .TUE...E winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED...E 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. Caribbean from 11N to 15N W of 72W .THIS AFTERNOON...E winds 20 to 30 kt. Seas 7 to 11 ft. .TONIGHT...NE winds 20 to 30 kt. Seas 8 to 12 ft. .MON...E winds 20 to 30 kt. Seas 8 to 12 ft. .MON NIGHT...E winds 20 to 30 kt within 90 nm of coast of Colombia, and NE 15 to 25 kt elsewhere. Seas 7 to 11 ft. .TUE...E winds 15 to 25 kt. Seas 7 to 11 ft. .TUE NIGHT...NE winds 15 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 5 to 7 ft. .THU...E winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. SW Caribbean S of 11N .THIS AFTERNOON...NE winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...N winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 6 to 8 ft. .MON...NE winds 10 to 15 kt. Seas 6 to 9 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft. .TUE...NE winds 10 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 6 to 8 ft. .WED...E winds 10 to 15 kt. Seas 5 to 7 ft. .WED NIGHT...SW winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 5 to 7 ft. .THU...SW winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .THU NIGHT...W winds less than 10 kt. Seas 4 to 6 ft. Caribbean between 64W and 72W .THIS AFTERNOON...E winds 20 to 30 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. .TONIGHT...E winds 20 to 30 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. .MON...E winds 20 to 30 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. .MON NIGHT...E winds 20 to 30 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. .TUE...E winds 15 to 25 kt. Seas 6 to 8 ft. .TUE NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. .WED...E winds 10 to 20 kt. Seas 5 to 7 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. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .MON...E winds 10 to 20 kt. Seas 6 to 9 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .WED...E winds 10 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .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. 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. .MON...E winds 10 to 15 kt. Seas 5 to 7 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...E winds 10 to 15 kt. Seas 6 to 8 ft. .TUE NIGHT...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 20 kt. Seas 5 to 7 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. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Moderate to fresh SE winds will pulse offshore of Florida and north of the Greater Antilles today. Fresh to strong SE to S winds are expected to develop tonight and continue into Tue offshore of central and northern Florida as a strengthening pressure gradient develops between high pressure in the western Atlantic and a low pressure in the southeastern United States. A cold front associated with the low pressure system is slated to move offshore of the southeastern U.S. on Tue and meander through midweek, before weakening and lifting northeastward. Elsewhere, pulsing moderate to fresh trade winds will prevail south of 25N this week. Locally rough seas in NE swell will impact the waters near the Lesser Antilles and across the passages into the Caribbean through late week. ATLC waters from 27N to 31N W of 77W .THIS AFTERNOON...SE winds 10 to 20 kt. Seas 5 to 6 ft. .TONIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. .MON...SE winds 15 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...S winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...SW winds 10 to 20 kt. Seas 6 to 8 ft. .TUE NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. .WED...W winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .WED NIGHT...SW winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .THU...SW winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .THU NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. ATLC waters from 27N to 31N between 65W and 77W .THIS AFTERNOON...SE winds 10 to 15 kt W of 70W, and Variable less than 10 kt elsewhere. Seas 4 to 5 ft. .TONIGHT...E winds 10 to 15 kt W of 70W, and NE less than 10 kt elsewhere. Seas 4 to 5 ft. .MON...E winds 10 to 15 kt. Seas 4 to 5 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...S winds 10 to 15 kt. Seas 4 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...S winds 10 to 15 kt. Seas 4 to 5 ft. .THU NIGHT...S winds less than 10 kt. Seas 3 to 5 ft. Bahamas N of 22N .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .MON...SE winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...SE winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .WED...S winds 10 to 15 kt, shifting to SE in the afternoon. Seas 3 to 5 ft. .WED NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .THU...E winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...E winds less than 10 kt. Seas 2 ft or less, building to 3 ft after midnight. ATLC waters from 22N to 27N between 65W and the Bahamas .THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 5 ft. .TONIGHT...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...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...SE winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. .WED...SE winds 10 to 15 kt. Seas 5 to 6 ft. .WED NIGHT...SE winds 10 to 15 kt. Seas 5 to 6 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. 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 20 kt. Seas 4 to 6 ft. .MON...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .TUE...E winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .WED...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W .THIS AFTERNOON...E winds 15 to 20 kt. Seas 6 to 8 ft. .TONIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft. .MON...E winds 10 to 20 kt. Seas 6 to 8 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 to 7 ft. .TUE...E winds 15 to 20 kt. Seas 6 to 7 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft. .WED...E winds 10 to 15 kt. Seas 6 to 7 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 6 to 7 ft. .THU...E winds 10 to 15 kt. Seas 6 to 7 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 6 to 7 ft.