


Offshore Forecast
Issued by NWS
Issued by NWS
036 FZNT23 KWNM 310942 OFFN01 NAVTEX Marine Forecast for NE US waters NWS Ocean Prediction Center Washington DC 542 AM EDT Sun Aug 31 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 weak low pressure trough will cross the area today. High pressure then builds in later today and continues through Mon. Low pressure will approach the SE waters Mon night and pass just E of the waters Tue. High pressure will then return behind the low and remains in place through Wed night. The high will shift E Thu ahead of low pressure and a warm front that will approach from the S Thu night. Eastport Maine to Cape Cod .TODAY...Variable winds 5 to 15 kt. Seas 3 to 4 ft. .TONIGHT...N to NE winds 5 to 15 kt. Seas 3 to 4 ft. .MON...E to NE winds 5 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...E to NE winds 10 to 20 kt. Seas 3 to 5 ft. .TUE...NE winds 10 to 20 kt. Seas 6 to 10 ft. .TUE NIGHT...Variable winds 10 to 20 kt. Seas 5 to 9 ft. .WED...S to SW winds 5 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...SW winds 5 to 15 kt. Seas 3 to 4 ft. .THU...S winds 10 to 20 kt. Seas 3 to 4 ft. .THU NIGHT...S winds 10 to 20 kt. Seas 3 to 4 ft. Cape Cod to Nantucket Shoals and Georges Bank ...GALE WARNING... .TODAY...NE winds 15 to 25 kt. Seas 3 to 6 ft. Scattered showers and chance of tstms. .TONIGHT...NE winds 15 to 25 kt. Seas 5 to 8 ft. .MON...NE winds 20 to 30 kt. Seas 6 to 10 ft. .MON NIGHT...NE winds 25 to 35 kt. Seas 8 to 12 ft. .TUE...N winds 20 to 30 kt. Seas 9 to 14 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 7 to 12 ft. .WED...NE winds 10 to 20 kt. Seas 4 to 7 ft. .WED NIGHT...N to NE winds 5 to 15 kt. Seas 3 to 5 ft. .THU...Variable winds 5 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...E to SE winds 5 to 15 kt. Seas 3 to 4 ft. South of New England .TODAY...NE winds 15 to 25 kt. Seas 3 to 6 ft. .TONIGHT...NE winds 15 to 25 kt. Seas 5 to 8 ft. .MON...NE winds 20 to 30 kt. Seas 5 to 8 ft. .MON NIGHT...NE winds 20 to 30 kt. Seas 6 to 9 ft. .TUE...N to NE winds 10 to 20 kt. Seas 5 to 8 ft. .TUE NIGHT...N to NE winds 5 to 15 kt. Seas 5 to 7 ft. .WED...S to SW winds 5 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...S to SW winds 5 to 15 kt. Seas 3 to 5 ft. .THU...S winds 10 to 20 kt. Seas 3 to 4 ft. .THU NIGHT...S to SE winds 10 to 20 kt. Seas 3 to 5 ft.