Offshore Forecast
Issued by NWS
Issued by NWS
866 FZNT33 KWBC 061435 OFFN31 Marine Weather HF Voice Broadcast NWS Ocean Prediction Center Washington DC 935 AM EST Sat Dec 6 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. This product will be discontinued January 6.For more details see: https://www.weather.gov/media/notification/pdf_2025/ scn_25-83_Updated_VOBRA_Discontinuation_aaa.pdf .SYNOPSIS FOR NEW ENGLAND WATERS...High pressure will shift E of the area today, as a series of low pressure centers pass S, then E of the waters into tonight. A cold front will move offshore tonight, then clear E of the waters Sun. A stronger cold front will move to the coast late Sun, then move across the area Sun night into Mon. High pressure will build E across the waters late Mon into Tue. The high will shift E Tue night as another low pressure develops and moves into New England. The associated warm front will lift NE Wed and the cold front to follow pushing E late Wed and Wed night. Gulf of Maine to the Hague Line ...GALE FORCE WINDS POSSIBLE MON... .TODAY...S to SW winds 5 to 15 kt. Seas 3 to 4 ft. .TONIGHT...W to SW winds 10 to 20 kt, becoming W to NW. Seas 3 to 5 ft. .SUN...N to NW winds 5 to 15 kt, becoming N. Seas 3 to 5 ft. .SUN NIGHT...W to SW winds less than 10 kt, becoming W 15 to 25 kt. Seas 3 to 5 ft. .MON...N to NW winds 25 to 35 kt. Seas 7 to 12 ft. .MON NIGHT...NW winds 20 to 30 kt, diminishing to 10 to 20 kt. Seas 6 to 11 ft. .TUE...W to NW winds 5 to 15 kt, becoming SW 10 to 20 kt. Seas 3 to 6 ft. .TUE NIGHT...W to SW winds 20 to 30 kt. Seas 6 to 10 ft. .WED...W to SW winds 15 to 25 kt, becoming S to SW. Seas 5 to 9 ft. .WED NIGHT...SW winds 20 to 30 kt, becoming W 15 to 25 kt. Seas 6 to 10 ft. Georges Bank...from the Northeast Channel to the Great South Channel including waters east of Cape Cod...to the Hague Line ...GALE FORCE WINDS POSSIBLE MON... .TODAY...E to NE winds less than 10 kt, becoming NE. Seas 3 to 5 ft. .TONIGHT...W winds 5 to 15 kt, becoming NW 10 to 20 kt. Seas 3 to 6 ft. .SUN...NW winds 10 to 15 kt, becoming W to NW 5 to 10 kt. Seas 4 to 5 ft. .SUN NIGHT...W winds 5 to 15 kt, increasing to 15 to 25 kt. Seas 3 to 6 ft. .MON...N to NW winds 25 to 35 kt. Seas 8 to 13 ft. .MON NIGHT...N winds 20 to 30 kt. Seas 8 to 13 ft. .TUE...N to NW winds 5 to 15 kt, becoming SW 10 to 20 kt. Seas 5 to 8 ft. .TUE NIGHT...W to SW winds 20 to 30 kt. Seas 5 to 9 ft. .WED...W to SW winds 15 to 25 kt, becoming S to SW. Seas 4 to 8 ft. .WED NIGHT...W to SW winds 20 to 30 kt. Seas 6 to 11 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 .TODAY...E to NE winds 5 to 15 kt, becoming variable. Seas 3 to 5 ft. .TONIGHT...W to NW winds 10 to 20 kt, becoming NW 10 to 15 kt. Seas 3 to 5 ft. .SUN...N to NW winds 5 to 15 kt, becoming W to SW. Seas 3 to 5 ft. .SUN NIGHT...W winds 15 to 25 kt. Seas 3 to 6 ft. .MON...N to NW winds 20 to 30 kt. Seas 6 to 11 ft. .MON NIGHT...N winds 20 to 30 kt, diminishing to 10 to 20 kt. Seas 7 to 12 ft. .TUE...N to NE winds less than 10 kt, becoming S to SW 10 to 20 kt. Seas 4 to 7 ft. .TUE NIGHT...W to SW winds 20 to 30 kt. Seas 4 to 8 ft. .WED...SW winds 20 to 30 kt. Seas 6 to 10 ft. .WED NIGHT...W to SW winds 20 to 30 kt. Seas 6 to 11 ft. .Forecaster Holley. Ocean Prediction Center.