


Offshore Forecast
Issued by NWS
Issued by NWS
131 FZNT33 KWBC 182026 OFFN31 Marine Weather HF Voice Broadcast NWS Ocean Prediction Center Washington DC 426 PM EDT Fri Apr 18 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 high pressure ridge over the outer waters this evening will pass E of the region later tonight. A warm front will lift NE across the waters later tonight into Sat. A cold front will move SE over the waters Sat night, then pass SE of the area Sun. High pressure will build SE over the waters Sun night and Mon, then pass SE of the region Mon night. Low pressure will move E over the Gulf of Maine Tue while pulling a cold front across the waters. A series of low pressure troughs will cross the area Tue night into Wed night. Gulf of Maine to the Hague Line .TONIGHT...S winds 10 to 20 kt, becoming SW 15 to 25 kt. Seas 5 to 8 ft. .SAT...SW winds 20 to 30 kt. Seas 6 to 11 ft. .SAT NIGHT...SW winds 15 to 25 kt, becoming W. Seas 6 to 10 ft. .SUN...W to NW winds 20 to 30 kt. Seas 6 to 10 ft. .SUN NIGHT...N to NW winds 15 to 25 kt. Seas 5 to 9 ft. .MON...N to NW winds 5 to 15 kt, becoming W to SW. Seas 3 to 6 ft. .MON NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...S winds 15 to 25 kt. Seas 3 to 6 ft. .TUE NIGHT...SW winds 10 to 15 kt, becoming W to NW. Seas 3 to 6 ft. .WED...NW winds 5 to 10 kt, becoming W. Seas 3 to 5 ft. .WED NIGHT...S to SW winds 5 to 10 kt, becoming N to NW. 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 .TONIGHT...SW winds 15 to 25 kt. Seas 4 to 7 ft. .SAT...SW winds 25 to 30 kt. Seas 6 to 11 ft. .SAT NIGHT...W to SW winds 20 to 30 kt. Seas 6 to 11 ft. .SUN...W to NW winds 15 to 25 kt. Seas 6 to 10 ft. .SUN NIGHT...NW winds 15 to 25 kt, becoming N. Seas 6 to 10 ft. .MON...N winds 5 to 15 kt, becoming NW. Seas 5 to 8 ft. .MON NIGHT...S to SW winds 5 to 15 kt. Seas 3 to 4 ft. .TUE...S winds 15 to 25 kt. Seas 3 to 6 ft. .TUE NIGHT...SW winds 15 to 25 kt, becoming W 10 to 15 kt. Seas 4 to 6 ft. .WED...NW winds 5 to 10 kt. Seas 3 to 5 ft. .WED NIGHT...W to SW winds less than 10 kt. 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 .TONIGHT...S to SW winds 15 to 25 kt. Seas 4 to 7 ft. .SAT...SW winds 20 to 30 kt. Seas 6 to 11 ft. .SAT NIGHT...SW winds 15 to 25 kt, becoming W. Seas 6 to 11 ft. .SUN...NW winds 10 to 20 kt, becoming W to NW 5 to 15 kt. Seas 4 to 8 ft. .SUN NIGHT...NW winds 5 to 15 kt, becoming N to NE. Seas 3 to 6 ft. .MON...E winds 5 to 10 kt, becoming S to SE 5 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...S to SE winds 5 to 15 kt, becoming S 10 to 20 kt. Seas 3 to 4 ft. .TUE...S winds 15 to 20 kt, becoming SW. Seas 4 to 5 ft. .TUE NIGHT...SW winds 10 to 20 kt, becoming W 10 to 15 kt. Seas 3 to 6 ft. .WED...N winds 5 to 10 kt, becoming W to NW. Seas 3 to 5 ft. .WED NIGHT...S winds less than 10 kt, becoming W to SW. Seas 3 to 4 ft. .Forecaster Kells. Ocean Prediction Center.