


Offshore Forecast
Issued by NWS
Issued by NWS
192 FZNT21 KWBC 220848 OFFNT1 Offshore Waters Forecast NWS Ocean Prediction Center Washington DC 448 AM EDT Fri Aug 22 2025 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. ANZ898-222000- 448 AM EDT Fri Aug 22 2025 .SYNOPSIS FOR NEW ENGLAND WATERS...The center of Hurricane Erin will track NE along outer Mid-Atlantic waters this morning. Erin will then move farther away from the area over the N Atlantic late today into Sat night while becoming extratropical sometime Sat. Long period S swell from Hurricane Erin will back to the SE and E by today and tonight. A high pressure ridge will move E across the waters tonight and Sat, then shift E of the area Sat night into Sun. A cold front will gradually approach the waters from the W late Sun night, then move E across the area Mon and Mon night as developing low pressure tracks NE along the front. Another cold front will move over the region Tue and Tue night. For more information on Hurricane Erin, please closely monitor the latest forecasts from the National Hurricane Center. $$ ANZ800-222000- Gulf of Maine to the Hague Line- 448 AM EDT Fri Aug 22 2025 .TODAY...N to NE winds 20 to 30 kt. Seas 11 to 19 ft. .TONIGHT...N winds 10 to 20 kt, becoming S to SW 5 to 15 kt. Seas 9 to 16 ft. .SAT...S winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 6 to 11 ft. .SAT NIGHT...S winds 10 to 20 kt. Seas 4 to 8 ft. .SUN...S winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...S winds 15 to 25 kt. Seas 3 to 5 ft. .MON...S winds 10 to 15 kt, becoming SE. Seas 3 to 4 ft. .MON NIGHT...S winds less than 10 kt, becoming W. Seas 3 to 4 ft. .TUE...W winds 10 to 15 kt, becoming SW 10 to 20 kt. Seas 3 to 6 ft. .TUE NIGHT...W to SW winds 10 to 20 kt. Seas 4 to 7 ft. $$ ANZ805-222000- Georges Bank between Cape Cod and 68W north of 1000 FM- 448 AM EDT Fri Aug 22 2025 ...TROPICAL STORM WARNING... .TODAY...N to NE winds 30 to 40 kt, becoming N 20 to 30 kt. Seas 14 to 29 ft. Chance of showers and tstms. .TONIGHT...N winds 15 to 25 kt, diminishing to 5 to 15 kt. Seas 12 to 20 ft. .SAT...N to NE winds 5 to 15 kt, becoming S to SE 10 to 20 kt. Seas 7 to 12 ft. .SAT NIGHT...S winds 10 to 20 kt, becoming 10 to 15 kt. Seas 5 to 9 ft. .SUN...S winds 10 to 15 kt. Seas 4 to 7 ft. .SUN NIGHT...S winds 10 to 15 kt. Seas 3 to 6 ft. .MON...SE winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...W winds less than 10 kt, increasing to 10 to 15 kt. Seas 3 to 5 ft. .TUE...W winds 10 to 15 kt. Seas 4 to 5 ft. .TUE NIGHT...W winds 10 to 20 kt. Seas 4 to 6 ft. $$ ANZ900-222000- Georges Bank between 68W and the Hague Line- 448 AM EDT Fri Aug 22 2025 ...TROPICAL STORM WARNING... .TODAY...NE winds 35 to 45 kt, becoming N, then, diminishing to 25 to 30 kt. Seas 16 to 31 ft. Chance of tstms. Chance of showers. .TONIGHT...N winds 20 to 30 kt, diminishing to 5 to 15 kt. Seas 14 to 23 ft. Chance of showers. .SAT...N to NE winds 5 to 15 kt, becoming S to SE. Seas 7 to 13 ft. .SAT NIGHT...S to SE winds 5 to 15 kt. Seas 6 to 9 ft. .SUN...S to SE winds 5 to 15 kt. Seas 4 to 8 ft. .SUN NIGHT...S to SE winds 10 to 15 kt. Seas 3 to 6 ft. .MON...SE winds 10 to 15 kt, becoming 10 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...SW winds 5 to 15 kt, becoming W 10 to 15 kt. Seas 3 to 6 ft. .TUE...W winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...W to SW winds 15 to 20 kt, becoming W 10 to 15 kt. Seas 5 to 6 ft. $$ ANZ810-222000- South of New England between the Great South Channel and Montauk Point to 1000 FM- 448 AM EDT Fri Aug 22 2025 ...TROPICAL STORM WARNING... .TODAY...N winds 30 to 35 kt, diminishing to 20 to 30 kt. Seas 14 to 28 ft. Chance of showers and tstms. .TONIGHT...N winds 15 to 25 kt, becoming N to NW 5 to 10 kt. Seas 11 to 18 ft. .SAT...Variable winds 5 to 15 kt, becoming S to SE. Seas 6 to 11 ft. .SAT NIGHT...S winds 10 to 15 kt. Seas 5 to 9 ft. .SUN...S winds 5 to 10 kt, increasing to 10 to 15 kt. Seas 4 to 7 ft. .SUN NIGHT...S winds 10 to 15 kt. Seas 3 to 6 ft. .MON...SE winds 5 to 15 kt, becoming variable. Seas 3 to 5 ft. .MON NIGHT...W winds 5 to 15 kt. Seas 3 to 5 ft. .TUE...W winds 10 to 15 kt, increasing to 15 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...W winds 10 to 20 kt. Seas 4 to 6 ft. $$ ANZ815-222000- South of Long Island between Montauk Point and Sandy Hook to 1000 FM- 448 AM EDT Fri Aug 22 2025 .TODAY...N winds 20 to 30 kt. Seas 14 to 23 ft. Chance of showers. .TONIGHT...NE winds 10 to 20 kt, becoming SW 5 to 15 kt. Seas 9 to 15 ft. .SAT...W to SW winds less than 10 kt, becoming S to SW. Seas 6 to 10 ft. .SAT NIGHT...S winds 10 to 15 kt. Seas 4 to 8 ft. .SUN...S winds 5 to 10 kt, increasing to 10 to 15 kt. Seas 3 to 6 ft. .SUN NIGHT...S winds 5 to 15 kt. Seas 3 to 6 ft. .MON...S winds less than 10 kt, becoming SW. Seas 3 to 4 ft. .MON NIGHT...W to SW winds 10 to 15 kt, becoming W to NW 10 to 20 kt. Seas 3 to 4 ft. .TUE...W to NW winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...W winds 10 to 20 kt, becoming NW 10 to 15 kt. Seas 3 to 5 ft. $$ .Forecaster Byrd. Ocean Prediction Center.