Offshore Forecast
Issued by NWS
Issued by NWS
089 FZNT33 KWBC 042107 OFFN31 Marine Weather HF Voice Broadcast NWS Ocean Prediction Center Washington DC 407 PM EST Thu Dec 4 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 move offshore and across the waters tonight, then exit E of the area later tonight. High pressure will build E over the waters Fri into Fri night, then continue E Sat as low pressure passes S of the region Fri night into Sat. High pressure will again build across the area Sat night and Sun ahead of another approaching cold front. The cold front will move SE over the waters Sun night into Mon. High pressure will once again build in from the W Mon night behind the cold front. The high will slide E Tue as a warm front approaches and lifts N across the waters followed by a cold front Tue night. Gulf of Maine to the Hague Line ...GALE WARNING... .TONIGHT...W winds 25 to 30 kt, becoming NW 35 to 45 kt. Seas 10 to 16 ft. Chance of snow early in the morning. Light freezing spray. .FRI...NW winds 10 to 20 kt, becoming SW 5 to 15 kt. Seas 6 to 9 ft, subsiding to 3 to 5 ft. Light freezing spray. .FRI NIGHT...SW winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 3 to 5 ft. .SAT...S to SW winds 5 to 15 kt, becoming SW 10 to 20 kt. Seas 3 to 4 ft. Chance of rain. .SAT NIGHT...W to SW winds 10 to 20 kt. Seas 3 to 4 ft. .SUN...NW winds 10 to 20 kt, becoming N to NW 5 to 15 kt. Seas 3 to 6 ft. .SUN NIGHT...N to NW winds 5 to 15 kt, becoming N 10 to 20 kt. Seas 3 to 5 ft. .MON...N to NW winds 20 to 30 kt, becoming N 25 to 35 kt. Seas 7 to 11 ft. .MON NIGHT...N to NW winds 20 to 30 kt. Seas 6 to 11 ft. .TUE...NW winds 10 to 20 kt, becoming SW 20 to 30 kt. Seas 3 to 5 ft. .TUE NIGHT...S to SW winds 20 to 30 kt, becoming W. Seas 8 to 13 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 winds 25 to 30 kt, becoming W to NW 30 to 40 kt early, then, becoming N to NW. Seas 10 to 17 ft. Light freezing spray. .FRI...N winds 15 to 25 kt, becoming W to SW 5 to 15 kt. Seas 8 to 13 ft, subsiding to 5 to 8 ft. Light freezing spray. .FRI NIGHT...S to SW winds 5 to 15 kt, becoming E to SE. Seas 3 to 6 ft. .SAT...E winds 5 to 15 kt, becoming variable. Seas 3 to 4 ft. Scattered showers. .SAT NIGHT...W to SW winds 5 to 15 kt, becoming W to NW 10 to 20 kt. Seas 3 to 4 ft. .SUN...NW winds 5 to 15 kt. Seas 3 to 6 ft. .SUN NIGHT...W winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 3 to 6 ft. .MON...NW winds 25 to 35 kt, becoming N. Seas 7 to 12 ft. .MON NIGHT...N winds 25 to 35 kt, diminishing to 15 to 25 kt. Seas 7 to 13 ft. .TUE...N to NW winds 5 to 15 kt, becoming S to SW 15 to 25 kt. Seas 5 to 8 ft. .TUE NIGHT...S to SW winds 20 to 30 kt, becoming W. Seas 6 to 10 ft, building to 9 to 15 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 25 to 30 kt, becoming NW 25 to 35 kt early, then, 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 SE 5 to 10 kt. Seas 5 to 9 ft. .FRI NIGHT...SE winds 5 to 10 kt, becoming E 5 to 15 kt. Seas 3 to 4 ft. Chance of rain and snow. .SAT...Variable winds 5 to 15 kt, becoming W. Seas 3 to 4 ft. Chance of rain. .SAT NIGHT...W winds 10 to 20 kt, becoming NW. Seas 3 to 5 ft. .SUN...N winds 5 to 15 kt, becoming variable. Seas 3 to 6 ft. .SUN NIGHT...W winds 10 to 20 kt, becoming NW 15 to 25 kt. Seas 3 to 6 ft. .MON...N to NW winds 20 to 30 kt, becoming N 25 to 35 kt. Seas 7 to 11 ft. .MON NIGHT...N winds 20 to 30 kt, diminishing to 10 to 20 kt. Seas 7 to 12 ft. .TUE...Variable winds 5 to 15 kt, becoming S 15 to 25 kt. Seas 4 to 7 ft. .TUE NIGHT...SW winds 20 to 30 kt, becoming W. Seas 9 to 15 ft. .Forecaster Joseph. Ocean Prediction Center.