![National Oceanic and Atmospheric Administration](/build/images/header/noaa.d87e0251.png)
![National Weather Service](/build/images/header/nws.4e6585d8.png)
![United States Department of Commerce](/build/images/header/doc.b38ba91a.png)
Offshore Forecast
Issued by NWS
Issued by NWS
320 FZNT33 KWBC 172108 OFFN31 Marine Weather HF Voice Broadcast NWS Ocean Prediction Center Washington DC 508 PM EDT Sat Aug 17 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...A weakening ridge will persist across the waters through Mon 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 on Hurricane Ernesto for more information. A cold front will move offshore Mon night into Tue, with a weak area of low pressure developing along the front in the Gulf of Maine. The front will move E of the waters Tue night as the low lifts NE into the Gulf of Saint Lawrence. A weak trough will pass E across the waters late Wed or Wed night, followed by high pressure building E across the waters Thu and Thu night. Gulf of Maine to the Hague Line .TONIGHT...S to SE winds 5 to 10 kt. Seas 4 to 8 ft. .SUN...E to SE winds 5 to 10 kt. Seas 4 to 8 ft. .SUN NIGHT...E to SE winds 5 to 10 kt, becoming E to NE. Seas 6 to 9 ft. .MON...Variable winds less than 10 kt, becoming S. Seas 7 to 10 ft. Scattered showers and slight chance of tstms with vsby 1 nm or less. .MON NIGHT...S to SW winds 5 to 15 kt. Seas 5 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 15 kt. Seas 4 to 6 ft. .WED...N winds 5 to 10 kt, becoming NW. Seas 3 to 6 ft. .WED NIGHT...W to NW winds 5 to 10 kt. Seas 3 to 5 ft. .THU...NW winds less than 10 kt, becoming W. Seas 3 to 4 ft. .THU NIGHT...W winds 5 to 10 kt. 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...E to SE winds 5 to 10 kt, becoming E 5 to 15 kt. Seas 6 to 11 ft. Areas of fog with vsby 1 nm or less. .SUN...E to NE winds 5 to 15 kt. Seas 6 to 11 ft. Areas of fog with vsby 1 nm or less. .SUN NIGHT...E to NE winds 5 to 15 kt, becoming N. Seas 7 to 12 ft. Areas of fog with vsby 1 nm or less. .MON...W to SW winds 5 to 15 kt, becoming S to SW 10 to 20 kt. Seas 6 to 11 ft. Scattered showers, fog and tstms with vsby 1 nm or less. .MON NIGHT...SW winds 15 to 25 kt. Seas 5 to 9 ft. .TUE...W to SW winds 15 to 25 kt. Seas 5 to 9 ft. .TUE NIGHT...N to NW winds 10 to 15 kt, becoming NW 5 to 10 kt. Seas 5 to 8 ft. .WED...NW winds less than 10 kt, increasing to 5 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...NW winds 5 to 15 kt, becoming W to NW 5 to 10 kt. Seas 3 to 5 ft. .THU...NW winds 5 to 10 kt. Seas 3 to 4 ft. .THU NIGHT...W to NW 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...E to SE winds 5 to 10 kt, becoming SE 5 to 15 kt. Seas 6 to 10 ft. .SUN...E to SE winds 5 to 15 kt. Seas 5 to 9 ft. .SUN NIGHT...SE winds 5 to 15 kt, becoming S 10 to 20 kt. Seas 6 to 9 ft. Scattered showers and tstms. .MON...S winds 10 to 20 kt, becoming SW. Seas 6 to 9 ft. Scattered showers and slight chance of tstms. .MON NIGHT...W to SW winds 15 to 25 kt. Seas 5 to 9 ft. .TUE...W to SW winds 5 to 15 kt, becoming N to NW 10 to 15 kt. Seas 4 to 8 ft. .TUE NIGHT...N to NW winds 5 to 15 kt. Seas 4 to 7 ft. .WED...NW winds 5 to 15 kt. Seas 3 to 6 ft. .WED NIGHT...W to NW winds 5 to 10 kt, becoming N to NW. Seas 3 to 4 ft. .THU...N to NW winds 5 to 10 kt, becoming W to NW. Seas 3 to 4 ft. .THU NIGHT...W to SW winds less than 10 kt. Seas 3 to 4 ft. .Forecaster Connelly. Ocean Prediction Center.