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Offshore Forecast
Issued by NWS
Issued by NWS
361 FZNT33 KWBC 160310 OFFN31 Marine Weather HF Voice Broadcast NWS Ocean Prediction Center Washington DC 1110 PM EDT Thu Aug 15 2024 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 over the area will persist into Fri, and then shift E of the region Fri night through Sat night while maintaining a weakening ridge westward across the waters. The ridge will drift N of the region Sun and Sun night as Hurricane Ernesto passes SE and then E of the waters. Long period S to SE swell from Ernesto will move into the area Fri, and continue into Mon night. See the latest National Hurricane Center advisory for Hurricane Ernesto for more information. Otherwise, a cold front will approach from the W Mon, move offshore Mon night and Tue, and then pass E of the waters Tue night as high pressure builds E over New England. Gulf of Maine to the Hague Line .TONIGHT...S to SE winds less than 10 kt. Seas 2 to 4 ft. Chance of showers and tstms. .FRI...E to SE winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...S to SE winds 5 to 10 kt. Seas 3 to 5 ft. .SAT...S winds 5 to 10 kt, becoming S to SE 5 to 15 kt. Seas building to 5 to 9 ft. .SAT NIGHT...S to SE winds 10 to 15 kt, becoming S 5 to 10 kt. Seas 6 to 10 ft. .SUN...S to SE winds 5 to 10 kt, becoming E to SE. Seas 7 to 12 ft. .SUN NIGHT...E winds 5 to 15 kt, diminishing to less than 10 kt. Seas 7 to 13 ft. .MON...S to SE winds 5 to 10 kt, becoming S 5 to 15 kt. Seas 7 to 12 ft. .MON NIGHT...S to SW winds 10 to 20 kt, becoming W to SW 5 to 15 kt. Seas subsiding to 4 to 8 ft. .TUE...N to NW winds 5 to 15 kt. Seas 4 to 7 ft. .TUE NIGHT...N to NW winds 10 to 20 kt, becoming N 10 to 15 kt. Seas 4 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...Variable winds less than 10 kt. Seas 2 to 4 ft. Chance of showers and tstms with vsby 1 nm or less. .FRI...Variable winds less than 10 kt. Seas 3 to 5 ft. Chance of showers and tstms with vsby 1 nm or less. .FRI NIGHT...E to SE winds less than 10 kt. Seas building to 5 to 9 ft. .SAT...E to SE winds 5 to 10 kt. Seas becoming 7 to 12 ft. .SAT NIGHT...SE winds 5 to 10 kt, becoming E to SE 5 to 15 kt. Seas 9 to 14 ft. .SUN...E to NE winds 10 to 20 kt. Seas 10 to 17 ft. .SUN NIGHT...NE winds 10 to 20 kt, becoming N to NE less than 10 kt. Seas 9 to 16 ft. .MON...W to SW winds 5 to 15 kt, becoming S to SW 15 to 25 kt. Seas 9 to 15 ft, subsiding to 7 to 10 ft. .MON NIGHT...SW winds 15 to 25 kt. Seas 6 to 10 ft. .TUE...W to SW winds 15 to 25 kt. Seas 5 to 9 ft. .TUE NIGHT...N winds diminishing to 5 to 15 kt. Seas 4 to 8 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 15 kt. Seas 3 to 4 ft. Chance of showers and tstms. .FRI...W winds 5 to 15 kt, becoming variable. Seas 3 to 6 ft. .FRI NIGHT...Variable winds 5 to 10 kt. Seas building to 5 to 9 ft. .SAT...S to SE winds 5 to 15 kt. Seas becoming 7 to 12 ft. .SAT NIGHT...S to SE winds 5 to 10 kt, becoming S 5 to 15 kt. Seas 8 to 13 ft. .SUN...E to SE winds 5 to 15 kt. Seas 9 to 16 ft. .SUN NIGHT...S to SE winds 10 to 20 kt. Seas 8 to 15 ft. .MON...S winds 10 to 20 kt, becoming SW. Seas subsiding to 6 to 10 ft. .MON NIGHT...W to SW winds 10 to 20 kt. Seas 6 to 10 ft. .TUE...N to NW winds 10 to 20 kt, becoming N 5 to 15 kt. Seas 4 to 8 ft. .TUE NIGHT...N to NE winds 5 to 15 kt, becoming N 10 to 20 kt. Seas 3 to 6 ft. .Forecaster Mills. Ocean Prediction Center.