


Offshore Forecast
Issued by NWS
Issued by NWS
306 FZNT33 KWBC 010256 OFFN31 Marine Weather HF Voice Broadcast NWS Ocean Prediction Center Washington DC 1056 PM EDT Sun Aug 31 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 persist over New England and the waters tonight through Tue. Low pressure will move NE along a stationary front over the outer mid-Atlantic waters, passing S and E of Georges Bank Tue and Tue night. High pressure will then return behind the low and remain in place through Wed night. The high will shift E of the area Thu as a warm front will then move N across the region Thu night into Fri. A cold front will approach the coast late Fri night. Gulf of Maine to the Hague Line .TONIGHT...W winds less than 10 kt, becoming N. Seas 3 to 4 ft. .MON...NE winds less than 10 kt. Seas 3 to 4 ft. .MON NIGHT...E winds less than 10 kt, becoming NE. Seas 2 ft or less, becoming 3 ft. .TUE...E to NE winds 5 to 15 kt. Seas 3 to 6 ft. .TUE NIGHT...E to NE winds 5 to 15 kt, becoming variable. Seas 3 to 6 ft. .WED...SW winds less than 10 kt, becoming S to SW. Seas 3 to 4 ft. .WED NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. .THU...S to SW winds 5 to 10 kt, becoming S 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...S winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...S winds 10 to 15 kt, becoming SW. Seas 4 to 5 ft. Georges Bank...from the Northeast Channel to the Great South Channel including waters east of Cape Cod...to the Hague Line .TONIGHT...NE winds 5 to 15 kt. Seas 3 to 4 ft. .MON...NE winds 10 to 15 kt, becoming 10 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...NE winds 10 to 20 kt. Seas 4 to 7 ft. .TUE...NE winds 15 to 25 kt. Seas 5 to 9 ft. .TUE NIGHT...N to NE winds 10 to 20 kt, becoming N 5 to 15 kt. Seas 5 to 9 ft. .WED...N winds less than 10 kt, becoming variable. Seas 4 to 5 ft. .WED NIGHT...S to SW winds 5 to 15 kt, diminishing to less than 10 kt. Seas 3 to 4 ft. .THU...S to SE winds less than 10 kt, increasing to 5 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...S to SE winds 5 to 15 kt. Seas 3 to 4 ft. .FRI...S to SE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...S winds 10 to 15 kt, becoming SW. Seas 4 to 5 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 .TONIGHT...NE winds 5 to 15 kt. Seas 3 to 4 ft. .MON...E to NE winds 15 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...NE winds 15 to 20 kt. Seas 4 to 7 ft. .TUE...NE winds 10 to 20 kt. Seas 4 to 7 ft. .TUE NIGHT...NE winds 5 to 15 kt, becoming N to NE. Seas 4 to 7 ft. .WED...Variable winds less than 10 kt, becoming S to SW. Seas 3 to 5 ft. .WED NIGHT...S winds 5 to 15 kt, diminishing to less than 10 kt. Seas 3 to 4 ft. .THU...S to SE winds 5 to 10 kt, increasing to 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...S to SE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...S winds 5 to 10 kt, increasing to 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...SW winds 10 to 15 kt. Seas 4 to 5 ft. .Forecaster Huffman. Ocean Prediction Center.