


Offshore Forecast
Issued by NWS
Issued by NWS
240 FZNT23 KWNM 122103 OFFN01 NAVTEX Marine Forecast for NE US waters NWS Ocean Prediction Center Washington DC 503 PM EDT Sun Oct 12 2025 Conditions given represent the highest within that period. Locally higher winds and seas can be expected in and near tstms. ...Please refer to Coastal Waters Forecasts (CWF) available through NOAA Weather Radio and other means for detailed coastal waters forecasts... .SYNOPSIS...A broad and complex coastal low will remain nearly stationary just offshore of the SE and Mid-Atlantic coasts tonight. The parent low off the SE coast will move E-NE through early Tue, while the secondary low about 150 nm E of the Virginia Capes will drift toward the coast through Tue. By Tue night, the northern low will become absorbed or dissipate and the southern low will finally move E of the waters Tue night into Wed. Mariners should continue to monitor later forecasts on this coastal system as it will be highly impactful to the mariner through the middle of the week. High pressure will build S into the eastern U.S. Wed through Thu, maintaining a strong pressure gradient across the waters, then persist through Fri night. A new area of low pressure will likely form just E of the outer Mid-Atlantic waters Thu and quickly move farther E and SE into the Atlantic by Fri night. Eastport Maine to Cape Cod ...GALE WARNING... .TONIGHT...E winds 25 to 35 kt. Seas 11 to 19 ft. Rain. .MON...E winds 25 to 35 kt. Seas 14 to 20 ft. Scattered showers. .MON NIGHT...E to NE winds 20 to 30 kt. Seas 11 to 17 ft. Scattered showers. .TUE...NE winds 20 to 30 kt. Seas 8 to 14 ft. Scattered showers and tstms. .TUE NIGHT...N winds 15 to 25 kt. Seas 6 to 10 ft. .WED...N winds 15 to 25 kt. Seas 5 to 8 ft. .WED NIGHT...N winds 20 to 30 kt. Seas 6 to 10 ft. .THU...N winds 20 to 30 kt. Seas 8 to 12 ft. .THU NIGHT...N winds 25 to 35 kt. Seas 10 to 14 ft. .FRI...N winds 20 to 30 kt. Seas 9 to 14 ft. .FRI NIGHT...N winds 20 to 30 kt. Seas 8 to 13 ft. Cape Cod to Nantucket Shoals and Georges Bank ...STORM WARNING... .TONIGHT...E winds 35 to 50 kt. Seas 17 to 24 ft. Rain. .MON...E winds 30 to 40 kt. Seas 14 to 23 ft. Scattered showers and slight chance of tstms with vsby 1 nm or less. .MON NIGHT...E winds 20 to 30 kt. Seas 11 to 18 ft. Scattered showers, tstms and areas of fog with vsby 1 nm or less. .TUE...N to NE winds 15 to 25 kt. Seas 9 to 14 ft. Scattered showers and tstms with vsby 1 nm or less. .TUE NIGHT...N winds 25 to 35 kt. Seas 10 to 14 ft. .WED...N winds 25 to 35 kt. Seas 8 to 14 ft. .WED NIGHT...N winds 20 to 30 kt. Seas 8 to 11 ft. .THU...N winds 25 to 35 kt. Seas 8 to 14 ft. .THU NIGHT...N winds 30 to 40 kt. Seas 11 to 19 ft. .FRI...N winds 30 to 40 kt. Seas 14 to 20 ft. .FRI NIGHT...N winds 20 to 30 kt. Seas 12 to 18 ft. South of New England ...STORM WARNING... .TONIGHT...E winds 35 to 50 kt. Seas 17 to 24 ft. Rain. .MON...E to NE winds 30 to 40 kt. Seas 14 to 21 ft. Scattered showers and slight chance of tstms with vsby 1 nm or less. .MON NIGHT...NE winds 25 to 35 kt. Seas 10 to 16 ft. Scattered showers and tstms with vsby 1 nm or less. .TUE...N winds 20 to 30 kt. Seas 8 to 13 ft. Scattered showers and tstms with vsby 1 nm or less. .TUE NIGHT...N winds 20 to 30 kt. Seas 8 to 14 ft. .WED...N winds 20 to 30 kt. Seas 8 to 14 ft. .WED NIGHT...N winds 20 to 30 kt. Seas 7 to 11 ft. .THU...N winds 25 to 35 kt. Seas 8 to 13 ft. .THU NIGHT...N winds 25 to 35 kt. Seas 10 to 15 ft. .FRI...N winds 20 to 30 kt. Seas 11 to 16 ft. .FRI NIGHT...N to NW winds 15 to 25 kt. Seas 9 to 14 ft.