Offshore Forecast
Issued by NWS
Issued by NWS
640 FZNT23 KWNM 090838 OFFN01 NAVTEX Marine Forecast for NE US waters NWS Ocean Prediction Center Washington DC ISSUED BY NWS National Hurricane Center Miami FL 338 AM EST Tue Dec 9 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...High pressure will build E across the waters today. The high will shift E tonight as weak low pressure develops and moves NE along the Maine coast, pulling a weak warm front NE across the area. Another warm front will lift N across the waters Wed ahead of a stronger area of low pressure moving E into northern New England. A strong cold front associated with this system will sweep E and SE over the area Wed night into Thu, followed by a secondary cold front or low pressure trough Thu night into Fri. High pressure to the S will build E and extend a ridge across the waters Fri night into Sat. Another trough will cross the area Sat as the ridge shifts E and weakens. During Sat night, developing low pressure with a warm front extending E from the low will approach from the SW. A cold front will approach the coast from the W late Sat night. Eastport Maine to Cape Cod ...GALE FORCE WINDS POSSIBLE FRI... .TODAY...W to SW winds 5 to 15 kt. Seas 4 to 7 ft. .TONIGHT...SW winds 20 to 30 kt. Seas 4 to 8 ft. Chance of rain and snow with vsby 1 nm or less. .WED...S winds 20 to 30 kt. Seas 5 to 8 ft. Chance of rain with vsby 1 nm or less. .WED NIGHT...SW winds 20 to 30 kt. Seas 7 to 10 ft. Chance of rain. .THU...W winds 20 to 30 kt. Seas 8 to 14 ft. .THU NIGHT...W winds 20 to 30 kt. Seas 10 to 14 ft. .FRI...W winds 25 to 35 kt. Seas 10 to 14 ft. .FRI NIGHT...W winds 20 to 30 kt. Seas 8 to 13 ft. .SAT...W winds 15 to 25 kt. Seas 5 to 9 ft. .SAT NIGHT...W winds 15 to 25 kt. Seas 5 to 7 ft. Cape Cod to Nantucket Shoals and Georges Bank ...GALE WARNING... .TODAY...N to NE winds 20 to 30 kt. Seas 7 to 12 ft. .TONIGHT...SW winds 20 to 30 kt. Seas 5 to 8 ft. Scattered showers. .WED...SW winds 20 to 30 kt. Seas 6 to 10 ft. Scattered showers. .WED NIGHT...W to SW winds 25 to 35 kt. Seas 9 to 15 ft. Scattered showers. .THU...W winds 25 to 35 kt. Seas 12 to 17 ft. .THU NIGHT...W winds 20 to 30 kt. Seas 10 to 15 ft. .FRI...W winds 25 to 35 kt. Seas 11 to 15 ft. .FRI NIGHT...W winds 20 to 30 kt. Seas 9 to 14 ft. .SAT...W winds 15 to 25 kt. Seas 6 to 10 ft. .SAT NIGHT...W winds 15 to 25 kt. Seas 7 to 10 ft. South of New England ...GALE WARNING... .TODAY...S to SW winds 15 to 25 kt. Seas 7 to 12 ft. .TONIGHT...SW winds 20 to 30 kt. Seas 6 to 10 ft. Slight chance of rain. .WED...SW winds 25 to 35 kt. Seas 8 to 13 ft. Chance of rain. .WED NIGHT...W winds 25 to 35 kt. Seas 9 to 15 ft. Chance of rain. .THU...W winds 25 to 35 kt. Seas 10 to 15 ft. .THU NIGHT...W winds 20 to 30 kt. Seas 8 to 11 ft. .FRI...W winds 20 to 30 kt. Seas 8 to 11 ft. .FRI NIGHT...W winds 15 to 25 kt. Seas 4 to 8 ft. .SAT...W winds 20 to 30 kt. Seas 5 to 9 ft. .SAT NIGHT...W to NW winds 20 to 30 kt. Seas 7 to 10 ft.