![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
458 FZNT21 KWBC 181459 OFFNT1 Offshore Waters Forecast NWS Ocean Prediction Center Washington DC 1059 AM EDT Sun Aug 18 2024 New England continental shelf and slope waters from 25 nm offshore to the Hague Line, except to 1000 fm south of New England. 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. ANZ898-190215- 1059 AM EDT Sun Aug 18 2024 .SYNOPSIS FOR NEW ENGLAND WATERS...A weakening high pressure ridge will persist across the waters into tonight as Tropical Storm Ernesto passes SE and then E of the waters and once again becomes a hurricane. 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 Ernesto for more information. A cold front will reach the coast Mon, and 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 low pressure trough will pass E across the area late Wed or Wed night, followed by high pressure building E across the S waters Thu and Thu night. $$ ANZ800-190215- Gulf of Maine to the Hague Line- 1059 AM EDT Sun Aug 18 2024 .TODAY...SE winds 5 to 10 kt. Seas 5 to 8 ft. .TONIGHT...SE winds 5 to 10 kt, becoming variable. Seas 5 to 9 ft. .MON...S winds less than 10 kt, increasing to 5 to 15 kt. Seas 6 to 9 ft. Scattered tstms with vsby 1 nm or less. .MON NIGHT...S winds 10 to 15 kt, becoming SW 10 to 20 kt. Seas 5 to 8 ft. Isolated showers and tstms with vsby 1 nm or less. .TUE...N to NW winds 10 to 20 kt, becoming 10 to 15 kt. Seas 4 to 7 ft. .TUE NIGHT...N to NW winds 5 to 15 kt. Seas 4 to 6 ft. .WED...N to NW winds 5 to 10 kt, becoming W to NW. Seas 3 to 6 ft. .WED NIGHT...W winds less than 10 kt, becoming NW. Seas 3 to 4 ft. .THU...NW winds less than 10 kt, becoming W. Seas 3 to 4 ft. .THU NIGHT...W winds 5 to 15 kt. Seas 3 to 4 ft. $$ ANZ805-190215- Georges Bank between Cape Cod and 68W north of 1000 FM- 1059 AM EDT Sun Aug 18 2024 .TODAY...E to NE winds 5 to 10 kt, becoming 5 to 15 kt. Seas 6 to 10 ft. .TONIGHT...E to NE winds 5 to 10 kt, becoming variable. Seas 6 to 10 ft. Areas of fog with vsby 1 nm or less. .MON...S winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 6 to 9 ft. Areas of fog with vsby 1 nm or less. Scattered showers and tstms with vsby 1 nm or less. .MON NIGHT...S to SW winds 15 to 25 kt. Seas 5 to 9 ft. Areas of fog. Scattered showers and tstms. Vsby 1 NM or less. .TUE...W to SW winds 15 to 25 kt. Seas 5 to 9 ft. .TUE NIGHT...N to NW winds 5 to 15 kt. Seas 4 to 7 ft. .WED...W to NW winds less than 10 kt. Seas 3 to 6 ft. .WED NIGHT...W winds 5 to 10 kt. Seas 3 to 4 ft. .THU...W winds 5 to 10 kt. Seas 3 to 4 ft. .THU NIGHT...W to SW winds 5 to 15 kt. Seas 3 to 4 ft. $$ ANZ900-190215- Georges Bank between 68W and the Hague Line- 1059 AM EDT Sun Aug 18 2024 .TODAY...E to NE winds 5 to 15 kt. Seas 7 to 11 ft. .TONIGHT...NE winds 5 to 15 kt, becoming N. Seas 7 to 12 ft. Areas of fog with vsby 1 nm or less. .MON...W to SW winds less than 10 kt, becoming S to SW 10 to 20 kt. Seas 7 to 11 ft. Areas of fog with vsby 1 nm or less. Scattered tstms with vsby 1 nm or less. .MON NIGHT...S to SW winds 15 to 25 kt. Seas 6 to 9 ft. Scattered showers and tstms with vsby 1 nm or less. .TUE...W to SW winds 15 to 25 kt. Seas 6 to 9 ft. .TUE NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt. Seas 6 to 8 ft. .WED...N to NW winds less than 10 kt, becoming W to NW. Seas 4 to 6 ft. .WED NIGHT...Variable winds less than 10 kt, becoming W. Seas 3 to 5 ft. .THU...W winds 5 to 10 kt, increasing to 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...W winds 5 to 15 kt. Seas 3 to 4 ft. $$ ANZ810-190215- South of New England between the Great South Channel and Montauk Point to 1000 FM- 1059 AM EDT Sun Aug 18 2024 .TODAY...E to NE winds 5 to 10 kt. Seas 6 to 9 ft. .TONIGHT...E to SE winds less than 10 kt, becoming S. Seas 6 to 9 ft. Scattered tstms. .MON...S winds 10 to 20 kt, becoming SW. Seas 6 to 9 ft. Scattered showers and tstms with vsby 1 nm or less. .MON NIGHT...SW winds 10 to 20 kt. Seas 5 to 9 ft. Scattered showers and tstms. .TUE...W to SW winds 10 to 20 kt, becoming W to NW. Seas 5 to 8 ft. .TUE NIGHT...NW winds 5 to 15 kt. Seas 4 to 7 ft. .WED...W to NW winds 5 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...W to NW winds 5 to 10 kt. Seas 3 to 4 ft. .THU...W to NW winds 5 to 10 kt. Seas 3 to 4 ft. .THU NIGHT...W winds 5 to 15 kt. Seas 3 to 4 ft. $$ ANZ815-190215- South of Long Island between Montauk Point and Sandy Hook to 1000 FM- 1059 AM EDT Sun Aug 18 2024 .TODAY...SE winds 5 to 15 kt. Seas 6 to 8 ft. Scattered showers. .TONIGHT...S to SE winds 5 to 15 kt, becoming S 10 to 20 kt. Seas 6 to 8 ft. Scattered showers and tstms. .MON...S to SW winds 10 to 20 kt, becoming SW 5 to 15 kt. Seas 6 to 8 ft. Isolated showers and tstms. .MON NIGHT...SW winds 10 to 15 kt, becoming W. Seas 4 to 8 ft. Scattered showers and tstms. .TUE...W to NW winds 10 to 15 kt. Seas 4 to 7 ft. .TUE NIGHT...N to NW winds 10 to 20 kt, becoming NW 5 to 15 kt. Seas 3 to 6 ft. .WED...NW winds 5 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...W to NW winds 5 to 10 kt, becoming N to NW. Seas 3 to 4 ft. .THU...NW winds 5 to 10 kt, becoming W. Seas 3 to 4 ft. .THU NIGHT...SW winds 5 to 15 kt, becoming W. Seas 3 to 4 ft. $$ .Forecaster Connelly. Ocean Prediction Center.