


Offshore Forecast
Issued by NWS
Issued by NWS
436 FZNT33 KWBC 301428 OFFN31 Marine Weather HF Voice Broadcast NWS Ocean Prediction Center Washington DC 1028 AM EDT Sat Aug 30 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, extending from a weak low over the N Gulf of Maine, will move slowly across the waters today, then pass E of the area tonight. A series of weak low pressure troughs will pass across the waters tonight into Sun. High pressure will build E and SE into the waters Sun, before retreating to the inner waters Sun night. The high will persist over the inner waters Mon into Mon night as low pressure passes SE and then E of the area. The high will spread E and cover most of the area Tue and Tue night as the low moves off to the E and NE of the waters. The high will then dominate the waters Wed before moving off to the E of the waters Wed night as low pressure organizes to the S and SW of the area. Gulf of Maine to the Hague Line .TODAY...W winds 5 to 15 kt. Seas 3 to 4 ft. Scattered showers and chance of tstms. .TONIGHT...W to SW winds 5 to 15 kt, becoming W to NW. Seas 3 to 4 ft. .SUN...N to NW winds 5 to 10 kt, becoming W to NW. Seas 3 to 4 ft. .SUN NIGHT...W to NW winds less than 10 kt. Seas 3 to 4 ft. .MON...Winds becoming E to NE less than 10 kt. Seas 3 to 4 ft. .MON NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. .TUE...Variable winds less than 10 kt. Seas 2 ft or less. .TUE NIGHT...W to SW winds less than 10 kt. Seas 3 to 5 ft. .WED...SW winds less than 10 kt, increasing to 5 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...SW winds 5 to 15 kt. Seas 3 to 4 ft. Georges Bank...from the Northeast Channel to the Great South Channel including waters east of Cape Cod...to the Hague Line .TODAY...W to SW winds 5 to 15 kt, becoming W 5 to 10 kt. Seas 3 to 4 ft. Scattered showers and chance of tstms. .TONIGHT...W to SW winds 5 to 15 kt, becoming W to NW. Seas 3 to 4 ft. .SUN...N to NW winds less than 10 kt. Seas 3 to 4 ft. .SUN NIGHT...N to NE winds less than 10 kt. Seas 3 to 4 ft. .MON...NE winds 5 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...NE winds 5 to 15 kt. Seas 3 to 4 ft. .TUE...NE winds 5 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...NE winds 5 to 15 kt, diminishing to less than 10 kt. Seas 3 to 4 ft. .WED...E to NE winds less than 10 kt, becoming variable. Seas 3 to 4 ft. .WED NIGHT...Variable winds 5 to 15 kt, becoming S to SE. Seas 3 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...NW winds 10 to 15 kt, becoming W to NW 5 to 10 kt. Seas 3 to 4 ft. .TONIGHT...W to NW winds 5 to 15 kt. Seas 3 to 4 ft. .SUN...N winds less than 10 kt. Seas 3 to 4 ft. .SUN NIGHT...E to NE winds less than 10 kt. Seas 3 to 4 ft. .MON...E to NE winds 5 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...E to NE winds 5 to 15 kt. Seas 3 to 4 ft. .TUE...NE winds 5 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...E to NE winds less than 10 kt, becoming variable. Seas 3 to 5 ft. .WED...E to NE winds less than 10 kt, becoming E to SE. Seas 3 to 5 ft. .WED NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .Forecaster Figurskey. Ocean Prediction Center.