Offshore Forecast
Issued by NWS
Issued by NWS
858 FZNT33 KWBC 040232 OFFN31 Marine Weather HF Voice Broadcast NWS Ocean Prediction Center Washington DC 932 PM EST Wed Dec 3 2025 New England continental shelf and slope waters from 25 nm offshore to the Hague Line, except to 1000 fm south of New England. Conditions given represent the highest within that period. 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. Locally higher winds and seas can be expected in and near tstms. .SYNOPSIS FOR NEW ENGLAND WATERS...High pressure will move across the waters tonight. A cold front will move SE across the area Thu before exiting to the E and SE Thu evening. High pressure will build E over the waters Fri into Fri night, then move E Sat as low pressure passes S of the region Fri night into Sat. Yet another cold front will move SE over the waters Sun and Sun night. High pressure will build in from the W Mon and Mon night. Gulf of Maine to the Hague Line ...GALE WARNING... .TONIGHT...SW winds 5 to 15 kt, increasing to 15 to 20 kt. Seas 4 to 8 ft. .THU...SW winds 20 to 25 kt, becoming W 25 to 30 kt. Seas 6 to 10 ft. .THU NIGHT...NW winds 30 to 40 kt. Seas 11 to 18 ft. Light freezing spray. .FRI...NW winds 15 to 25 kt, becoming W to SW 5 to 15 kt. Seas 8 to 12 ft, subsiding to 4 to 7 ft. Light freezing spray. .FRI NIGHT...SW winds 10 to 15 kt, diminishing to less than 10 kt. Seas 3 to 4 ft. .SAT...S to SE winds less than 10 kt, becoming S. Seas 3 to 4 ft. .SAT NIGHT...S to SW winds 5 to 10 kt, becoming W 5 to 15 kt. Seas 3 to 4 ft. .SUN...W winds 5 to 10 kt, becoming W to NW 5 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...NW winds 10 to 15 kt, becoming 10 to 20 kt. Seas 3 to 5 ft. .MON...N winds 20 to 25 kt. Seas 4 to 8 ft. .MON NIGHT...N to NW winds 15 to 25 kt. Seas 4 to 7 ft. Georges Bank...from the Northeast Channel to the Great South Channel including waters east of Cape Cod...to the Hague Line ...GALE WARNING... .TONIGHT...W to SW winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 6 to 10 ft. .THU...W to SW winds 20 to 30 kt. Seas 6 to 10 ft. .THU NIGHT...NW winds 30 to 40 kt. Seas 11 to 18 ft. Light freezing spray. .FRI...NW winds 15 to 25 kt, becoming W to SW less than 10 kt. Seas 10 to 16 ft, subsiding to 6 to 10 ft. Light freezing spray. .FRI NIGHT...S to SW winds less than 10 kt, becoming E 10 to 20 kt. Seas 3 to 6 ft. .SAT...E winds 5 to 15 kt, becoming NE 10 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...E to NE winds 5 to 15 kt, becoming variable. Seas 4 to 7 ft. .SUN...W to NW winds less than 10 kt, becoming W. Seas 3 to 6 ft. .SUN NIGHT...NW winds 10 to 15 kt, becoming 10 to 20 kt. Seas 3 to 6 ft. .MON...N winds 20 to 25 kt. Seas 5 to 9 ft. .MON NIGHT...N winds 15 to 25 kt. Seas 6 to 10 ft. South of New England...from the Great South Channel to Hudson Canyon including the waters south of Marthas Vineyard and Nantucket Island...out to 1000 fm ...GALE WARNING... .TONIGHT...W winds 10 to 15 kt, increasing to 15 to 20 kt. Seas 4 to 8 ft. .THU...W winds 20 to 30 kt. Seas 6 to 10 ft. .THU NIGHT...NW winds 25 to 35 kt, becoming N to NW 20 to 30 kt. Seas 8 to 13 ft. Light freezing spray. .FRI...N to NE winds 5 to 15 kt, becoming S to SW. Seas 7 to 11 ft. Light freezing spray. .FRI NIGHT...SE winds 5 to 15 kt, becoming E 10 to 20 kt. Seas 3 to 5 ft. .SAT...E winds 5 to 15 kt, becoming W. Seas 3 to 5 ft. .SAT NIGHT...W to NW winds 5 to 15 kt. Seas 3 to 6 ft. .SUN...W to NW winds 5 to 10 kt. Seas 3 to 6 ft. .SUN NIGHT...NW winds 10 to 15 kt, becoming N to NW 15 to 25 kt. Seas 3 to 6 ft. .MON...N winds 20 to 25 kt. Seas 5 to 9 ft. .MON NIGHT...N winds 15 to 25 kt. Seas 6 to 10 ft. .Forecaster Bancroft. Ocean Prediction Center.