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Offshore Forecast
Issued by NWS
Issued by NWS
217 FZNT33 KWBC 160844 OFFN31 Marine Weather HF Voice Broadcast NWS Ocean Prediction Center Washington DC 444 AM EDT Fri Aug 16 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 today will persist tonight, and then slowly shift NE of the region Sat and Sat night while maintaining a weakening ridge westward across the waters. The weak ridge will drift N of the region Sun and Sun night as Hurricane Ernesto passes SE and then E of the waters. Long period SE swell from Ernesto will move into the area today, 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 Sun night into Mon, move offshore Mon afternoon into Tue, and then slowly pass E of the waters Tue night as high pressure builds E over New England. Gulf of Maine to the Hague Line .TODAY...SE winds less than 10 kt, becoming variable, then, becoming SE. Seas 2 to 4 ft. .TONIGHT...S to SE winds 5 to 10 kt. Seas 3 to 5 ft. .SAT...S winds 5 to 10 kt, becoming 5 to 15 kt. Seas becoming 4 to 8 ft. .SAT NIGHT...S winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas 6 to 10 ft. Slight chance of showers with vsby 1 nm or less. .SUN...S winds 5 to 10 kt, becoming SE 10 to 15 kt. Seas 6 to 10 ft. .SUN NIGHT...E to SE winds 5 to 10 kt. Seas 6 to 11 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. Seas subsiding to 4 to 8 ft. .TUE...N to NW winds 5 to 15 kt. Seas 4 to 7 ft. .TUE NIGHT...N winds 5 to 15 kt, becoming N to NE 10 to 20 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 .TODAY...Variable winds less than 10 kt. Seas 2 to 5 ft. Chance of showers and tstms with vsby 1 nm or less. .TONIGHT...E to SE winds less than 10 kt. Seas building to 5 to 9 ft. .SAT...E to SE winds less than 10 kt. Seas building to 7 to 12 ft. .SAT NIGHT...SE winds 5 to 10 kt, becoming E to SE 5 to 15 kt. Seas 8 to 13 ft. .SUN...E winds 10 to 20 kt, becoming E to NE 5 to 15 kt. Seas 9 to 15 ft. .SUN NIGHT...NE winds 5 to 15 kt, becoming N to NE. Seas 8 to 14 ft. .MON...S to SW winds 5 to 15 kt, increasing to 15 to 25 kt. Seas 8 to 14 ft. .MON NIGHT...S to SW winds 15 to 25 kt. Seas subsiding to 6 to 9 ft. .TUE...SW winds 15 to 25 kt, becoming N. Seas 5 to 9 ft. .TUE NIGHT...N to NE 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 .TODAY...W winds 5 to 15 kt, diminishing to less than 10 kt, then, becoming variable. Seas 2 to 4 ft, becoming 3 to 6 ft. Chance of showers and tstms. .TONIGHT...S to SW winds less than 10 kt, becoming variable. Seas building to 5 to 9 ft. .SAT...S to SE winds 5 to 15 kt. Seas building to 7 to 12 ft. .SAT NIGHT...S to SE winds 5 to 15 kt. Seas 8 to 13 ft. Chance of showers and tstms. .SUN...E to SE winds 5 to 15 kt. Seas 8 to 14 ft. .SUN NIGHT...S to SE winds 10 to 20 kt. Seas 7 to 13 ft. .MON...S winds 10 to 20 kt, becoming SW. Seas 6 to 10 ft. .MON NIGHT...SW winds 15 to 25 kt. Seas 5 to 9 ft. .TUE...W to SW winds 10 to 20 kt, becoming W to NW 5 to 15 kt. Seas 5 to 9 ft. .TUE NIGHT...N to NE winds 10 to 20 kt. Seas 4 to 7 ft. .Forecaster Mills. Ocean Prediction Center.