


Offshore Forecast
Issued by NWS
Issued by NWS
864 FZNT33 KWBC 291433 OFFN31 Marine Weather HF Voice Broadcast NWS Ocean Prediction Center Washington DC 1033 AM EDT Fri Aug 29 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...A cold front will approach the waters from the W today. The front will move slowly offshore tonight into Sat, then pass E of the area later Sat and Sat night. A weak low pressure trough will move SE over the region Sat night into Sun. Another high will build SE across the area Sun into Mon night, then shift E of the region Tue and Tue night while maintaining a weakening ridge across the area. Gulf of Maine to the Hague Line .TODAY...S winds 10 to 15 kt. Seas 3 to 4 ft. Chance of showers and tstms. .TONIGHT...S to SW winds 5 to 15 kt. Seas 3 to 4 ft. Scattered showers and chance of tstms. .SAT...S to SW winds 5 to 15 kt, becoming W 5 to 10 kt. Seas 3 to 4 ft. Scattered showers and chance of tstms. .SAT NIGHT...W winds 5 to 10 kt, becoming NW. Seas 2 to 4 ft. .SUN...N to NW winds less than 10 kt, becoming W to NW. Seas 2 to 4 ft. .SUN NIGHT...W winds less than 10 kt, becoming NW. Seas 2 to 4 ft. .MON...N to NE winds less than 10 kt. Seas 1 to 3 ft. .MON NIGHT through TUE NIGHT...Variable winds less than 10 kt. Seas 1 to 3 ft. Georges Bank...from the Northeast Channel to the Great South Channel including waters east of Cape Cod...to the Hague Line .TODAY...S to SE winds 5 to 15 kt. Seas 3 to 4 ft. Chance of showers and tstms. .TONIGHT...S to SE winds 5 to 15 kt, becoming S to SW. Seas 3 to 4 ft. Scattered showers and chance of tstms. .SAT...W to SW winds less than 10 kt. Seas 2 to 4 ft. Scattered showers and chance of tstms. .SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. .SUN...N to NW winds less than 10 kt. Seas 2 to 4 ft. .SUN NIGHT...N winds less than 10 kt, becoming N to NE. Seas 2 to 4 ft. .MON...N to NE winds 5 to 15 kt, becoming 5 to 10 kt. Seas 3 to 4 ft. .MON NIGHT...NE winds less than 10 kt. Seas 2 to 4 ft. .TUE...NE winds less than 10 kt, becoming variable. Seas 2 to 4 ft. .TUE NIGHT...Variable winds less than 10 kt, becoming N. Seas 2 to 4 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 SE winds 5 to 15 kt, becoming S to SW. Seas 3 to 4 ft. Chance of showers and tstms. .TONIGHT...W to NW winds 5 to 15 kt, becoming N to NW. Seas 3 to 4 ft. Chance of showers and slight chance of tstms. .SAT...NW winds 5 to 15 kt, becoming W 5 to 10 kt. Seas 3 to 4 ft. .SAT NIGHT...W to NW winds 5 to 15 kt. Seas 3 to 4 ft. .SUN...N winds 5 to 10 kt. Seas 2 to 4 ft. .SUN NIGHT...E to NE winds less than 10 kt, becoming N to NE. Seas 2 to 4 ft. .MON...NE winds 5 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...E to NE winds less than 10 kt, becoming N to NE. Seas 2 to 4 ft. .TUE...E to NE winds less than 10 kt. Seas 2 to 4 ft. .TUE NIGHT...Variable winds less than 10 kt. Seas 2 to 4 ft. .Forecaster Mills. Ocean Prediction Center.