


Offshore Forecast
Issued by NWS
Issued by NWS
586 FZNT23 KWNM 042053 OFFN01 NAVTEX Marine Forecast for NE US waters NWS Ocean Prediction Center Washington DC 453 PM EDT Thu Sep 4 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...Weak high pressure will exit the area tonight as a series of weak lows move NE along a surface front nearly stationary just SE of the waters. A slow- moving cold front approaches the coast late tonight, and weakens as it moves E across the waters Fri and Fri night. A stronger cold front approaches from the W Sat, moves into the area Sat night, and finally passes through the area by late Sun night and early Mon. The front will then become nearly stationary just SE of the waters Mon night with weak lows moving NE along the front. High pressure builds into the waters behind the front and persists through Tue night. The front will slowly drift NW as a warm front late Tue and Tue night. Eastport Maine to Cape Cod .TONIGHT...S winds 10 to 20 kt. Seas 3 to 4 ft. Isolated showers with vsby 1 nm or less. .FRI...S winds 15 to 25 kt. Seas 3 to 5 ft. Scattered showers and slight chance of tstms with vsby 1 nm or less. .FRI NIGHT...S winds 15 to 25 kt. Seas 4 to 7 ft. Chance of rain with vsby 1 nm or less. .SAT...S winds 15 to 25 kt. Seas 4 to 6 ft. Slight chance of rain with vsby 1 nm or less. .SAT NIGHT...S to SW winds 10 to 20 kt. Seas 3 to 6 ft. .SUN...S to SW winds 10 to 20 kt. Seas 3 to 6 ft. .SUN NIGHT...W to NW winds 5 to 15 kt. Seas 4 to 6 ft. .MON...W to SW winds 5 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...N winds 5 to 15 kt. Seas 3 to 4 ft. .TUE...NE winds 5 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...N to NE winds 5 to 15 kt. Seas 3 to 4 ft. Cape Cod to Nantucket Shoals and Georges Bank .TONIGHT...Variable winds 5 to 15 kt. Seas 3 to 5 ft. Scattered tstms and isolated showers with vsby 1 nm or less. .FRI...S winds 10 to 20 kt. Seas 3 to 4 ft. Scattered showers, fog and tstms with vsby 1 nm or less. .FRI NIGHT...S winds 10 to 20 kt. Seas 3 to 5 ft. Scattered tstms and isolated showers with vsby 1 nm or less. .SAT...S winds 5 to 15 kt. Seas 3 to 4 ft. Scattered showers and tstms with vsby 1 nm or less. .SAT NIGHT...S to SW winds 15 to 25 kt. Seas 4 to 7 ft. .SUN...S to SW winds 15 to 25 kt. Seas 5 to 8 ft. .SUN NIGHT...N to NW winds 10 to 20 kt. Seas 5 to 7 ft. .MON...N to NE winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...NE winds 15 to 25 kt. Seas 4 to 7 ft. .TUE...NE winds 15 to 25 kt. Seas 5 to 8 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 5 to 8 ft. South of New England .TONIGHT...S winds 10 to 20 kt. Seas 3 to 5 ft. Isolated showers. .FRI...S winds 10 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...S winds 10 to 20 kt. Seas 3 to 6 ft. Scattered showers. .SAT...S winds 10 to 20 kt. Seas 3 to 5 ft. Scattered showers and tstms with vsby 1 nm or less. .SAT NIGHT...S winds 15 to 25 kt. Seas 4 to 7 ft. .SUN...S to SW winds 15 to 25 kt. Seas 5 to 8 ft. .SUN NIGHT...N winds 10 to 20 kt. Seas 3 to 6 ft. .MON...N to NE winds 10 to 20 kt. Seas 3 to 6 ft. .MON NIGHT...NE winds 10 to 20 kt. Seas 4 to 7 ft. .TUE...NE winds 15 to 25 kt. Seas 5 to 8 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 5 to 8 ft.