


Offshore Forecast
Issued by NWS
Issued by NWS
484 FZNT33 KWBC 050234 OFFN31 Marine Weather HF Voice Broadcast NWS Ocean Prediction Center Washington DC 1034 PM EDT Sat Oct 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 weakening cold front will briefly stall over the northern Gulf of Maine late tonight, then lift back NE as a warm front on Sun while dissipating. Otherwise, strong high pressure will persist just to the S of the waters tonight into Mon before shifting off to the E and SE of the area Mon night into Tue. A strong cold front will approach the area from the W and NW late Tue night, then move quickly SE across the area on Wed. The front will clear S and E of the waters Wed night as strong high pressure builds E and SE toward the area from the Great Lakes. High pressure will move SE across the waters late Thu into Thu night. Gulf of Maine to the Hague Line .TONIGHT...S to SW winds less than 10 kt, becoming variable. Seas 2 to 4 ft. .SUN...Variable winds less than 10 kt, becoming S to SW. Seas 2 to 4 ft. .SUN NIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt. Seas 3 to 4 ft. .MON...SW winds 10 to 15 kt, becoming 10 to 20 kt. Seas 3 to 4 ft. .MON NIGHT...SW winds 15 to 20 kt. Seas 3 to 5 ft. .TUE...SW winds 15 to 25 kt. Seas 3 to 6 ft. .TUE NIGHT...SW winds 15 to 25 kt. Seas 4 to 7 ft. .WED...S to SW winds 15 to 25 kt. Seas 4 to 7 ft. .WED NIGHT...N winds 20 to 30 kt. Seas 4 to 8 ft. .THU...N winds 15 to 25 kt. Seas 4 to 8 ft. .THU NIGHT...N to NE winds 10 to 20 kt, becoming E to NE 5 to 15 kt. Seas 3 to 6 ft. Georges Bank...from the Northeast Channel to the Great South Channel including waters east of Cape Cod...to the Hague Line .TONIGHT...W to NW winds 5 to 10 kt, becoming W to SW. Seas 3 to 5 ft. .SUN...Variable winds less than 10 kt, becoming SW. Seas 3 to 4 ft. .SUN NIGHT...SW winds less than 10 kt, increasing to 5 to 15 kt. Seas 3 to 4 ft. Areas of fog with vsby 1 nm or less. .MON...SW winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 3 to 4 ft. Areas of fog with vsby 1 nm or less. .MON NIGHT...SW winds 10 to 20 kt. Seas 3 to 4 ft. .TUE...SW winds 10 to 20 kt. Seas 3 to 5 ft. .TUE NIGHT...S to SW winds 10 to 20 kt. Seas 3 to 6 ft. .WED...S winds 15 to 25 kt, becoming SW. Seas 3 to 6 ft. .WED NIGHT...N winds 20 to 30 kt. Seas building to 5 to 9 ft. .THU...N winds 20 to 30 kt. Seas 5 to 9 ft. .THU NIGHT...NE winds 15 to 25 kt. Seas 5 to 9 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...W to SW winds 5 to 10 kt. Seas 3 to 5 ft. .SUN...W to SW winds less than 10 kt. Seas 3 to 4 ft. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Areas of fog with vsby 1 nm or less. .MON...SW winds 5 to 10 kt. Seas 2 to 4 ft. .MON NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...SW winds 10 to 15 kt, becoming 10 to 20 kt. Seas 3 to 4 ft. .TUE NIGHT...S to SW winds 10 to 20 kt. Seas 3 to 6 ft. .WED...S to SW winds 15 to 25 kt. Seas 3 to 6 ft. .WED NIGHT...N winds 20 to 30 kt. Seas building to 5 to 8 ft. .THU...N winds 15 to 25 kt, becoming NE. Seas 5 to 9 ft. .THU NIGHT...E to NE winds 15 to 25 kt. Seas 5 to 9 ft. .Forecaster Mills. Ocean Prediction Center.