


Offshore Forecast
Issued by NWS
Issued by NWS
740 FZNT33 KWBC 160227 OFFN31 Marine Weather HF Voice Broadcast NWS Ocean Prediction Center Washington DC 1027 PM EDT Sun Jun 15 2025 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 will prevail over the area tonight into Mon. Low pressure will form and move E and NE along a front S of the waters Mon through Tue night as a high pressure ridge slowly weakens over the area. The low will weaken to the SE and E of the region Wed. A warm front will lift NE over the waters Wed night into Thu, followed by a cold front approaching the coast from the W late Thu. The cold front will move offshore Thu night, and clear E of the region Fri. A secondary cold front or low pressure trough will move SE over the waters Fri night as high pressure builds E over New England. Please see https://www.weather.gov/media/notification/pdf_2025/ pns25-33_vobra_discontinuation_2025.pdf (all lower case) for a proposal to discontinue this product. Gulf of Maine to the Hague Line .TONIGHT...S to SE winds 5 to 10 kt, becoming S to SW. Seas 3 to 5 ft. .MON...E to SE winds 5 to 10 kt, becoming S to SE 5 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...S winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas 3 to 4 ft. .TUE...S to SE winds 5 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .WED...S winds 10 to 20 kt, becoming S to SW 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 4 ft. .THU...S to SW winds 10 to 15 kt, increasing to 15 to 25 kt. Seas 3 to 6 ft. .THU NIGHT...SW winds 15 to 25 kt, becoming W 15 to 20 kt. Seas 4 to 6 ft. .FRI...NW winds 10 to 20 kt, becoming W 5 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...W to NW winds 10 to 15 kt. Seas 3 to 5 ft. Georges Bank...from the Northeast Channel to the Great South Channel including waters east of Cape Cod...to the Hague Line .TONIGHT...E winds 5 to 10 kt, becoming 5 to 15 kt. Seas 3 to 5 ft. Slight chance of showers. .MON...E winds 5 to 15 kt. Seas 3 to 5 ft. Slight chance of showers. .MON NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. Slight chance of showers. .TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. Slight chance of showers with vsby 1 nm or less. .TUE NIGHT...SE winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 3 to 5 ft. .WED...S to SW winds 5 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 4 ft. .THU...SW winds 10 to 15 kt, increasing to 15 to 25 kt. Seas 3 to 6 ft. .THU NIGHT...W to SW winds 15 to 20 kt. Seas 4 to 6 ft. .FRI...W winds 10 to 20 kt. Seas 3 to 6 ft. .FRI NIGHT...W to NW winds 10 to 15 kt. Seas 3 to 6 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 winds 10 to 15 kt. Seas 3 to 5 ft. Chance of showers. .MON...E winds 10 to 15 kt. Seas 3 to 5 ft. Chance of showers. .MON NIGHT...E winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 3 to 5 ft. Slight chance of showers. .TUE...E winds 5 to 15 kt. Seas 3 to 5 ft. Areas of fog and slight chance of showers with vsby 1 nm or less. .TUE NIGHT...E to SE winds 5 to 15 kt, becoming S to SE. Seas 3 to 5 ft. .WED...S to SW winds 5 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. .THU...SW winds 10 to 20 kt. Seas 3 to 5 ft. .THU NIGHT...W to SW winds 10 to 20 kt. Seas 3 to 6 ft. .FRI...W winds 10 to 20 kt. Seas 3 to 6 ft. .FRI NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt. Seas 3 to 5 ft. .Forecaster Holley. Ocean Prediction Center.