


Offshore Forecast
Issued by NWS
Issued by NWS
142 FZNT24 KWNM 210317 OFFN02 NAVTEX Marine Forecast for Mid-Atlantic states waters NWS Ocean Prediction Center Washington DC 1117 PM EDT Wed Aug 20 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...The center of large Hurricane Erin is located over the outer S waters early tonight. Eric will continue to track N and then N to NE through the outer S and outer central waters later tonight and Thu. It will then turn more NE and move through the outer northern Mid-Atlantic Waters Thu night and Fri, passing E of the area Fri night. Significant S to SE swell will continue through Fri night while gradually backing to the E. A high pressure area will build over the waters Fri night through Sat night while a stationary front forms over the far S waters. A weak area of low pressure will form along the front off the South Carolina coast Sat night, then lift NE through the central waters Sun into Sun night while the area of high pressure to the N shifts E of the region. A cold front will approach the area from the W late Sun night, then move E across the area Mon and Mon night. For more information on Hurricane Erin, please closely monitor the latest forecasts from the National Hurricane Center. Sandy Hook to 37.5N ...TROPICAL STORM WARNING... .TONIGHT...E winds 20 to 30 kt, becoming E to NE 30 to 40 kt. Seas 9 to 17 ft, building to 13 to 24 ft. Scattered showers and tstms. .THU...N to NE winds 45 to 60 kt. Seas 21 to 38 ft. Showers and tstms. .THU NIGHT...N winds 40 to 50 kt. Seas 18 to 36 ft. Chance of showers and tstms. .FRI...N winds 20 to 30 kt. Seas 14 to 24 ft. Chance of showers. .FRI NIGHT...S to SW winds 10 to 20 kt. Seas 9 to 16 ft. .SAT...E winds 5 to 15 kt. Seas 7 to 12 ft. .SAT NIGHT...S winds 5 to 15 kt. Seas 6 to 10 ft. .SUN and SUN NIGHT...S winds 5 to 15 kt. Seas 5 to 8 ft. .MON...W to SW winds 10 to 20 kt. Seas 4 to 7 ft. .MON NIGHT...W winds 5 to 15 kt. Seas 3 to 5 ft. 37.5N to Cape Hatteras ...HURRICANE WARNING... .TONIGHT...E winds 40 to 55 kt, increasing to 75 to 90 kt. Seas 16 to 32 ft, building to 31 to 50 ft. Showers and tstms. .THU...N to NW winds 65 to 85 kt. Seas 33 to 55 ft. Showers and tstms. .THU NIGHT...N winds 35 to 45 kt. Seas 18 to 34 ft. Chance of showers and tstms. .FRI...N winds 15 to 25 kt. Seas 11 to 21 ft. .FRI NIGHT...E to NE winds 5 to 15 kt. Seas 8 to 15 ft. .SAT...E winds 5 to 15 kt. Seas 7 to 13 ft. .SAT NIGHT...S to SE winds 5 to 15 kt. Seas 6 to 10 ft. .SUN...SE winds 5 to 15 kt. Seas 5 to 8 ft. .SUN NIGHT...S winds 15 to 25 kt. Seas 5 to 7 ft. .MON...W to SW winds 5 to 15 kt. Seas 4 to 7 ft. .MON NIGHT...W winds 5 to 15 kt. Seas 3 to 6 ft. Cape Hatteras to Murrells Inlet ...HURRICANE WARNING... .TONIGHT...E to NE winds 75 to 90 kt, becoming E to SE 80 to 95 kt. Seas 28 to 55 ft. Showers and tstms. .THU...W to NW winds 65 to 80 kt. Seas 33 to 55 ft. Showers and tstms. .THU NIGHT...N to NW winds 20 to 30 kt. Seas 13 to 25 ft. Scattered showers and chance of tstms. .FRI...N winds 10 to 20 kt. Seas 10 to 18 ft. Scattered showers and tstms. .FRI NIGHT...E to NE winds 5 to 15 kt. Seas 8 to 14 ft. .SAT...E winds 5 to 15 kt. Seas 7 to 11 ft. .SAT NIGHT...SE winds 5 to 15 kt. Seas 6 to 10 ft. .SUN...S to SE winds 10 to 20 kt. Seas 6 to 9 ft. .SUN NIGHT...SW winds 10 to 20 kt. Seas 5 to 8 ft. .MON and MON NIGHT...W to NW winds 5 to 15 kt. Seas 5 to 7 ft.