


Offshore Forecast
Issued by NWS
Issued by NWS
853 FZNT25 KWNM 181607 OFFN03 NAVTEX Marine Forecast for southeast U.S. waters NWS Ocean Prediction Center Washington DC 1207 PM EDT Mon Aug 18 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 stationary front across the area will dissipate today. Hurricane Erin, currently well SE of the waters, will approach the region from the SE Tue and Tue night, then will be near 29.5N 73.5W at 8 AM EDT Wed, then move to near 31.7N 73.1W by 8 PM EDT Wed night, then to 33.9N 71.6W by 8 AM ED Thu, then continue to move NE through Fri night. Long period SE to S swell from Erin will move into the waters tonight, and then continue in the area Mon through Wed before slowly backing to E and NE Wed night through Fri night. A stationary front will form across the waters Fri and Fri night. For more information on Hurricane Erin, please closely monitor the latest forecasts from the National Hurricane Center. Murrells Inlet to 31N ...TROPICAL STORM CONDITIONS POSSIBLE WED... .TODAY...E to NE winds 5 to 15 kt. Seas 5 to 8 ft. .TONIGHT...NE winds 5 to 15 kt. Seas 7 to 12 ft. Isolated showers and tstms. .TUE...NE winds 10 to 20 kt. Seas 9 to 15 ft. Scattered showers and tstms. .TUE NIGHT...NE winds 20 to 30 kt. Seas 14 to 24 ft. Scattered showers and tstms. .WED...N winds 45 to 60 kt. Seas 23 to 35 ft. .WED NIGHT...N to NW winds 45 to 60 kt. Seas 19 to 32 ft. .THU...N to NW winds 20 to 30 kt. Seas 12 to 20 ft. .THU NIGHT...N to NE winds 10 to 20 kt. Seas 10 to 15 ft. .FRI...E to NE winds 5 to 15 kt. Seas 8 to 12 ft. .FRI NIGHT...E winds 5 to 15 kt. Seas 6 to 10 ft. South of 31N .TODAY...NE winds 5 to 15 kt. Seas 5 to 9 ft. .TONIGHT...E to NE winds 5 to 15 kt. Seas 8 to 13 ft. Isolated showers and tstms. .TUE...NE winds 10 to 20 kt. Seas 11 to 17 ft. Scattered showers and tstms. .TUE NIGHT...N winds 20 to 30 kt. Seas 14 to 23 ft. Scattered showers and tstms. .WED...N winds 20 to 30 kt. Seas 19 to 27 ft. .WED NIGHT...NW winds 20 to 30 kt. Seas 14 to 24 ft. .THU...N to NW winds 10 to 20 kt. Seas 10 to 16 ft. .THU NIGHT...Variable winds less than 10 kt. Seas 8 to 12 ft. .FRI...E winds less than 10 kt. Seas 7 to 10 ft. .FRI NIGHT...E to SE winds less than 10 kt. Seas 6 to 9 ft.