Offshore Forecast
Issued by NWS
Issued by NWS
471 FZNT31 KNHC 130911 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 511 AM EDT Mon Oct 13 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...Tropical Storm Lorenzo is near 14.2N 40.3W at 5 AM EDT, and is moving northwest at 15 kt. Maximum sustained winds are 40 kt with gusts to 50 kt, and the minimum central pressure is 1006 mb. Lorenzo will move to 15.0N 41.7W this afternoon, 16.2N 43.4W Tue morning, 18.0N 44.4W Tue afternoon, 20.1N 44.7W Wed morning, 22.4N 44.2W Wed afternoon, and 25.1N 42.6W Thu morning. Lorenzo will change little in intensity as it moves to the 30.9N 36.9W early Fri. Meanwhile, a moist weather pattern will maintain scattered showers and isolated thunderstorms across the western and central Caribbean during the next few days. A weak pressure gradient will support moderate or lighter winds and slight to moderate seas over much of the basin through the work week. A weak cyclonic circulation may develop over the NW Caribbean toward midweek. NW Caribbean W of 85W .TODAY...Variable winds less than 10 kt. Seas 2 ft or less. .TONIGHT...E winds less than 10 kt. Seas 2 ft or less, building to 3 ft after midnight. .TUE...N winds less than 10 kt. Seas 3 ft. .TUE NIGHT...N winds less than 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. .WED...NW winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...N winds 10 to 15 kt, shifting to NW after midnight. Seas 3 to 5 ft. .THU...NW winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...N winds less than 10 kt, shifting to SW after midnight. Seas 3 to 5 ft. .FRI...W winds less than 10 kt. Seas 3 ft. .FRI NIGHT...E winds less than 10 kt, shifting to SE after midnight. Seas 2 ft or less. Caribbean N of 15N between 72W and 85W .TODAY...SE winds less than 10 kt. Seas 2 ft or less. .TONIGHT...E winds less than 10 kt. Seas 2 ft or less. .TUE...SE winds less than 10 kt. Seas 2 ft or less. .TUE NIGHT...SE winds less than 10 kt. Seas 2 ft or less. .WED...S winds less than 10 kt. Seas 2 ft or less. .WED NIGHT...W winds less than 10 kt. Seas 2 ft or less. .THU...SW winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...W winds less than 10 kt. Seas 2 ft or less. .FRI...S winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT...E winds less than 10 kt. Seas 2 ft or less. Caribbean from 11N to 15N W of 72W .TODAY...S winds less than 10 kt. Seas 2 ft or less. .TONIGHT...Within 90 nm of coast of Colombia, NE winds 10 kt. Elsewhere, Variable winds less than 10 kt, becoming NE less than 10 kt after midnight. Seas 2 ft or less. .TUE...E winds 10 to 15 kt within 90 nm of coast of Colombia, and E less than 10 kt elsewhere. Seas 2 ft or less. .TUE NIGHT...NE winds less than 10 kt. Seas 2 ft or less. .WED...NE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .WED NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. .THU...Variable winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. .FRI...Variable winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. SW Caribbean S of 11N .TODAY...S winds less than 10 kt. Seas 2 ft or less. .TONIGHT...NE winds less than 10 kt. Seas 2 ft or less. .TUE...Variable winds less than 10 kt. Seas 2 ft or less. .TUE NIGHT...Variable winds less than 10 kt, becoming NW less than 10 kt after midnight. Seas 2 ft or less. .WED...Variable winds less than 10 kt. Seas 2 ft or less. .WED NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. .THU...Variable winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. .FRI...Variable winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. Caribbean between 64W and 72W .TODAY...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 2 ft or less Gulf of Venezuela, and 3 to 4 ft elsewhere. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...E winds less than 10 kt. Seas 3 to 4 ft. .TUE NIGHT...NE winds 10 to 15 kt Gulf of Venezuela, and E less than 10 kt elsewhere. Seas 3 ft. .WED...SE winds less than 10 kt. Seas 3 ft. .WED NIGHT...SE winds less than 10 kt. Seas 2 ft or less. .THU...S winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...S winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 2 ft or less. .FRI...Variable winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT...E winds less than 10 kt. Seas 2 ft or less. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .TUE NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .WED...S winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. .THU...S winds 10 to 20 kt. Seas 3 to 5 ft. .THU NIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...S winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...S winds 10 to 15 kt, diminishing to less than 10 kt after midnight. 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 4 to 6 ft. .TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...E winds 10 to 15 kt, shifting to SE in the afternoon. Seas 4 to 6 ft. .TUE NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .WED...SE winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .THU...SE winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 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. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Tropical Storm Lorenzo is near 14.2N 40.3W at 5 AM EDT, and is moving northwest at 15 kt. Maximum sustained winds are 40 kt with gusts to 50 kt, and the minimum central pressure is 1006 mb. Lorenzo will move to 15.0N 41.7W this afternoon, 16.2N 43.4W Tue morning, 18.0N 44.4W Tue afternoon, 20.1N 44.7W Wed morning, 22.4N 44.2W Wed afternoon, and 25.1N 42.6W Thu morning. Lorenzo will change little in intensity as it moves to the 30.9N 36.9W early Fri. Elsewhere, fresh to strong winds will continue to affect the waters north of 28N and between 58W and 62W through tonight. In the meantime, a dissipating stationary front extends from a non-tropical low off the Carolinas to NW Bahamas, followed by a surface trough to the Gulf of America. The frontal boundary will be reinforced today, and the merged front will extend from 31N71W to the central Bahamas and western Cuba as a cold front by Mon evening, and from 31N66W to the central Bahamas and central Cuba by Tue evening. Fresh to strong winds and rough seas are expected on either side of the front across the waters N of 27N by late Tue, and shift eastward through late in the week. ATLC waters from 27N to 31N W of 77W .TODAY...NW winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...N winds 10 to 15 kt. Seas 6 to 8 ft. .TUE...N winds 10 to 15 kt. Seas 6 to 8 ft. .TUE NIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft. .WED...N winds 10 to 15 kt. Seas 6 to 8 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 6 to 8 ft. .THU...NE winds 10 to 20 kt. Seas 6 to 9 ft. .THU NIGHT...NE winds 10 to 20 kt. Seas 7 to 9 ft. .FRI...NE winds 10 to 15 kt. Seas 7 to 8 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. ATLC waters from 27N to 31N between 65W and 77W .TODAY...SW winds 10 to 15 kt. Seas 6 to 9 ft. .TONIGHT...W of 70W, W winds 10 to 15 kt. Elsewhere, SW winds less than 10 kt, shifting to S after midnight. Seas 6 to 8 ft. .TUE...W winds 10 to 15 kt. Seas 6 to 8 ft. .TUE NIGHT...NW winds 10 to 20 kt. Seas 6 to 8 ft. .WED...NW winds 10 to 20 kt. Seas 6 to 9 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 7 to 10 ft. .THU...N winds 10 to 20 kt. Seas 7 to 9 ft. .THU NIGHT...N winds 10 to 20 kt. Seas 7 to 10 ft. .FRI...N winds 10 to 20 kt. Seas 8 to 12 ft. .FRI NIGHT...N winds 10 to 20 kt. Seas 8 to 13 ft. Bahamas N of 22N .TODAY...SW winds less than 10 kt. Seas 3 to 5 ft. .TONIGHT...E winds less than 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. .TUE...NE winds less than 10 kt. Seas 2 ft or less. .TUE NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. .WED...N winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 5 ft. .THU...N winds less than 10 kt. Seas 3 to 5 ft. .THU NIGHT...N 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. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...S winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...SE winds less than 10 kt. Seas 5 to 6 ft. .TUE...S winds less than 10 kt. Seas 4 to 5 ft. .TUE NIGHT...SW winds less than 10 kt, shifting to W after midnight. Seas 4 to 5 ft. .WED...NW winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. .THU...NW winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...NW winds 10 to 15 kt. Seas 6 to 8 ft. .FRI...N winds 10 to 15 kt. Seas 6 to 8 ft. .FRI NIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft. ATLC waters S of 22N W of 65W .TODAY...SE winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .TUE NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .WED...SW winds less than 10 kt, shifting to W in the afternoon. Seas 3 to 4 ft. .WED NIGHT...NW winds 10 to 15 kt. Seas 3 to 4 ft. .THU...NW winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...NW winds less than 10 kt. Seas 3 to 5 ft. .FRI...NW winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...N winds less than 10 kt. Seas 3 to 5 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...E winds 10 to 15 kt. Seas 5 to 6 ft. .TONIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. .TUE...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .TUE NIGHT...SE winds less than 10 kt. Seas 4 to 5 ft. .WED...S winds 10 to 15 kt. Seas 4 to 5 ft. .WED NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. .THU...SW winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...SW winds 10 to 20 kt. Seas 6 to 9 ft. .FRI...SW winds 10 to 20 kt. Seas 6 to 9 ft. .FRI NIGHT...SW winds 10 to 20 kt. Seas 6 to 9 ft.