


Offshore Forecast
Issued by NWS
Issued by NWS
663 FZNT33 KWBC 172043 OFFN31 Marine Weather HF Voice Broadcast NWS Ocean Prediction Center Washington DC 443 PM EDT Tue Jun 17 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...A high pressure ridge over the extending over the area tonight will persist into Wed. Weak low pressure along a front S of the region will pass SE of Georges Bank tonight. A warm front will lift NE over the waters Wed through early Thu, followed by a cold front approaching the coast from the W late Thu. The cold front will move through the area Thu night through Fri. A secondary cold front or low pressure trough will move SE over the waters Fri night as high pressure moves E over New England waters. High pressure will move E over the waters and pass E of the area Sat and Sat night. A trough will move SE over the area Sat night. 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...SE winds 5 to 10 kt, becoming S to SE 10 to 15 kt. Seas 3 to 4 ft. .WED...S winds 5 to 15 kt. Seas 3 to 4 ft. Areas of fog and chance of rain with vsby 1 nm or less. .WED NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Areas of fog with vsby 1 nm or less. .THU...S to SW winds 5 to 15 kt, becoming S 10 to 20 kt. Seas 3 to 5 ft. Areas of fog with vsby 1 nm or less. .THU NIGHT...SW winds 15 to 25 kt. Seas 4 to 7 ft. .FRI...W to SW winds 10 to 20 kt, becoming W 5 to 15 kt. Seas 4 to 7 ft. .FRI NIGHT...W to NW winds less than 10 kt. Seas 3 to 6 ft. .SAT...Variable winds less than 5 kt, becoming S. Seas 3 to 4 ft. .SAT NIGHT...S winds 10 to 15 kt, becoming SW 15 to 20 kt. Seas 3 to 5 ft. .SUN...SW winds 10 to 20 kt. Seas 3 to 6 ft. .SUN NIGHT...SW winds 5 to 15 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 15 kt. Seas 3 to 5 ft. Areas of fog with vsby 1 nm or less. .WED...S to SE winds 5 to 15 kt, becoming S to SW. Seas 3 to 4 ft. Areas of fog with vsby 1 nm or less. .WED NIGHT...S winds 5 to 15 kt. Seas 3 to 4 ft. Areas of fog with vsby 1 nm or less. .THU...SW winds 10 to 15 kt, increasing to 15 to 20 kt. Seas 3 to 6 ft. Areas of fog with vsby 1 nm or less. .THU NIGHT...SW winds 15 to 25 kt. Seas 5 to 8 ft. .FRI...W to SW winds 10 to 20 kt, becoming W 5 to 15 kt. Seas 4 to 8 ft. .FRI NIGHT...W winds 5 to 10 kt. Seas 3 to 6 ft. .SAT...Variable winds less than 5 kt, becoming S to SW. Seas 3 to 5 ft. .SAT NIGHT...S to SW winds 5 to 15 kt, becoming SW 10 to 20 kt. Seas 3 to 4 ft. .SUN...SW winds 10 to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...SW winds 10 to 15 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 S. Seas 3 to 5 ft. Areas of fog with vsby 1 nm or less. .WED...S to SW winds 5 to 15 kt. Seas 3 to 4 ft. Areas of fog with vsby 1 nm or less. .WED NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Areas of fog with vsby 1 nm or less. .THU...SW winds 10 to 15 kt, increasing to 15 to 20 kt. Seas 4 to 7 ft. Areas of fog with vsby 1 nm or less. .THU NIGHT...W to SW winds 15 to 25 kt. Seas 4 to 8 ft. .FRI...W winds 5 to 15 kt. Seas 4 to 8 ft. .FRI NIGHT...W to SW winds 5 to 15 kt, becoming W 5 to 10 kt. Seas 3 to 6 ft. .SAT...W winds less than 10 kt, becoming SW. Seas 3 to 4 ft. .SAT NIGHT...SW winds 5 to 15 kt. Seas 3 to 4 ft. .SUN...SW winds 10 to 15 kt, increasing to 15 to 20 kt. Seas 3 to 4 ft. .SUN NIGHT...SW winds 10 to 20 kt, becoming W to SW 10 to 15 kt. Seas 3 to 4 ft. .Forecaster Folmer. Ocean Prediction Center.