Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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049 FZUS51 KLWX 171057 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 557 AM EST Mon Nov 17 2025 Tidal Potomac River and Maryland portion of Chesapeake Bay. Forecasts of wave heights do not include effects of wind direction relative to tidal currents. Expect higher waves when winds are blowing against the tidal flow. Waves flat where waters are iced over. ANZ500-172200- 557 AM EST Mon Nov 17 2025 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... Blustery conditions will persist through today. A wave of low pressure will likely approach Tuesday into Wednesday. Another area of low pressure may approach late in the week. $$ ANZ535-172200- Tidal Potomac from Key Bridge to Indian Head- 557 AM EST Mon Nov 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...NW winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .TONIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt early in the evening. Waves 1 ft. .TUE...SW winds around 5 kt. Waves 1 ft. A chance of rain. .TUE NIGHT...SE winds around 5 kt. Waves 1 ft. Rain. .WED...N winds around 5 kt. Waves 1 ft. .WED NIGHT...NE winds around 5 kt. Waves 1 ft or less. .THU...SE winds around 5 kt. Waves 1 ft or less. A chance of rain after midnight. .FRI...SW winds 5 to 10 kt. Waves 1 ft. A chance of rain in the morning. A chance of rain through the night. $$ ANZ536-172200- Tidal Potomac from Indian Head to Cobb Island- 557 AM EST Mon Nov 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...NW winds 15 kt with gusts to 25 kt. Waves 1 to 2 ft. .TONIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt early in the evening. Waves 1 ft. .TUE...SW winds around 5 kt. Waves 1 ft. A chance of rain. .TUE NIGHT...SE winds 5 kt. Waves less than 1 ft. Rain. .WED...N winds 5 kt. Waves less than 1 ft. .WED NIGHT...NE winds around 5 kt. Waves 1 ft. .THU...SE winds around 5 kt. Waves 1 ft or less. A chance of rain after midnight. .FRI...SW winds 10 to 15 kt. Waves 1 ft. A chance of rain in the morning. A chance of rain through the night. $$ ANZ537-172200- Tidal Potomac from Cobb Island to Smith Point- 557 AM EST Mon Nov 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...NW winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. .TONIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .TUE...W winds around 5 kt. Waves 1 ft or less. A chance of rain. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. Rain. .WED...N winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...NE winds 5 kt. Waves less than 1 ft. .THU...E winds around 5 kt. Waves 1 ft or less. A chance of rain after midnight. .FRI...SW winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain through the night. $$ ANZ530-172200- Chesapeake Bay north of Pooles Island- 557 AM EST Mon Nov 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...NW winds 20 kt with gusts to 30 kt. Waves 2 ft. .TONIGHT...W winds 10 to 15 kt. Gusts up to 25 kt early in the evening. Waves 1 to 2 ft. .TUE...W winds 5 kt. Waves less than 1 ft. A chance of rain. .TUE NIGHT...SE winds around 5 kt. Waves 1 ft. Rain. .WED...NE winds around 5 kt. Waves 1 ft. .WED NIGHT...NE winds around 5 kt. Waves 1 ft. .THU...E winds around 5 kt. Waves 1 ft or less. A chance of rain after midnight. .FRI...SW winds 10 to 15 kt...becoming W after midnight. Waves 1 ft. A chance of rain in the morning. Rain likely in the evening, then a chance of rain after midnight. $$ ANZ531-172200- Chesapeake Bay from Pooles Island to Sandy Point- 557 AM EST Mon Nov 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...W winds 20 kt with gusts to 30 kt. Waves 3 ft. .TONIGHT...NW winds 15 to 20 kt with gusts to 25 kt... diminishing to 5 to 10 kt late. Waves 3 ft...subsiding to 1 ft after midnight. .TUE...W winds 5 to 10 kt. Waves 1 ft. A chance of rain. .TUE NIGHT...SE winds 5 kt. Waves less than 1 ft. Rain. .WED...NE winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...NE winds 5 kt. Waves less than 1 ft. .THU...E winds 5 to 10 kt. Waves 1 ft or less. A chance of rain after midnight. .FRI...S winds 10 to 15 kt...becoming W after midnight. Waves 1 to 2 ft. A chance of rain in the morning. A chance of rain through the night. $$ ANZ538-172200- Patapsco River including Baltimore Harbor- 557 AM EST Mon Nov 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...W winds 15 kt with gusts to 25 kt. Waves 1 to 2 ft. .TONIGHT...NW winds 10 to 15 kt with gusts to 20 kt... becoming W 5 kt late. Waves 1 ft. .TUE...W winds 5 kt. Waves flat. A chance of rain. .TUE NIGHT...SE winds 5 kt. Waves flat. Rain. .WED...NE winds 5 kt. Waves flat. .WED NIGHT...NE winds around 5 kt. Waves flat. .THU...E winds around 5 kt. Waves flat. A chance of rain after midnight. .FRI...SW winds 5 to 10 kt...becoming W after midnight. Waves 1 ft. A chance of rain in the morning. Rain likely in the evening, then a chance of rain after midnight. $$ ANZ539-172200- Chester River to Queenstown MD- 557 AM EST Mon Nov 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...NW winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft. .TONIGHT...NW winds 10 to 15 kt. Gusts up to 25 kt early in the evening. Waves 2 to 3 ft. .TUE...W winds 5 to 10 kt. Waves 1 ft. A chance of rain. .TUE NIGHT...SE winds 5 kt. Waves less than 1 ft. Rain. .WED...NE winds 5 kt. Waves less than 1 ft. .WED NIGHT...NE winds 5 kt. Waves flat. .THU...E winds around 5 kt. Waves flat. A chance of rain after midnight. .FRI...SW winds 5 to 10 kt...becoming W 10 to 15 kt after midnight. Waves 1 to 2 ft. A chance of rain in the morning. A chance of rain through the night. $$ ANZ532-172200- Chesapeake Bay from Sandy Point to North Beach- 557 AM EST Mon Nov 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...NW winds 20 kt with gusts to 30 kt. Waves 3 ft. .TONIGHT...NW winds 15 to 20 kt with gusts to 25 kt... diminishing to 5 to 10 kt late. Waves 3 ft...subsiding to 1 ft after midnight. .TUE...W winds 5 to 10 kt. Waves 1 ft. A chance of rain. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. Rain. .WED...NE winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...NE winds 5 kt. Waves less than 1 ft. .THU...E winds around 5 kt...becoming S after midnight. Waves 1 ft or less. A chance of rain after midnight. .FRI...S winds 10 to 15 kt...becoming W 15 to 20 kt. Waves 1 to 2 ft. A chance of rain in the morning. A chance of rain through the night. $$ ANZ540-172200- Eastern Bay- 557 AM EST Mon Nov 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...NW winds 20 kt with gusts to 30 kt. Waves 2 ft. .TONIGHT...NW winds 10 to 15 kt. Gusts up to 25 kt. Waves 1 to 2 ft. .TUE...W winds 5 to 10 kt. Waves 1 ft. A chance of rain. .TUE NIGHT...SE winds 5 kt. Waves less than 1 ft. Rain. .WED...NE winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...NE winds 5 kt. Waves flat. .THU...E winds around 5 kt. Waves flat. A chance of rain after midnight. .FRI...SW winds 10 to 15 kt...becoming W after midnight. Waves 1 to 2 ft. A chance of rain in the morning. A chance of rain through the night. $$ ANZ533-172200- Chesapeake Bay from North Beach to Drum Point- 557 AM EST Mon Nov 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...NW winds 20 kt with gusts to 30 kt. Waves 3 ft. .TONIGHT...NW winds 15 to 20 kt with gusts to 25 kt... diminishing to 10 kt late. Waves 2 to 3 ft. .TUE...W winds 5 to 10 kt. Waves 1 ft. A chance of rain. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. Rain. .WED...NE winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .THU...NE winds around 5 kt...becoming S after midnight. Waves 1 ft or less. A chance of rain after midnight. .FRI...SW winds 15 to 20 kt...becoming W after midnight. Waves 1 to 2 ft. A chance of rain in the morning. A chance of rain through the night. $$ ANZ541-172200- Choptank River to Cambridge MD and the Little Choptank River- 557 AM EST Mon Nov 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...NW winds 20 kt with gusts to 30 kt. Waves 3 ft. .TONIGHT...NW winds 15 to 20 kt with gusts to 25 kt... diminishing to 5 to 10 kt late. Waves 2 ft. .TUE...W winds 5 to 10 kt. Waves 1 ft. A chance of rain. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. Rain. .WED...NE winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...NE winds 5 kt. Waves less than 1 ft. .THU...E winds 5 to 10 kt. Waves 1 ft or less. A chance of rain after midnight. .FRI...S winds 10 to 15 kt...becoming W 15 to 20 kt. Waves 1 to 2 ft. A chance of rain in the morning. A chance of rain through the night. $$ ANZ542-172200- Patuxent River to Broomes Island MD- 557 AM EST Mon Nov 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...NW winds 15 kt with gusts to 25 kt. Waves 1 ft. .TONIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves 1 ft. .TUE...W winds 5 kt. Waves less than 1 ft. A chance of rain. .TUE NIGHT...SE winds 5 kt. Waves less than 1 ft. Rain. .WED...N winds 5 kt. Waves less than 1 ft. .WED NIGHT...NE winds around 5 kt. Waves 1 ft. .THU...E winds around 5 kt. Waves 1 ft. A chance of rain after midnight. .FRI...SW winds 5 to 10 kt. Waves 1 ft. A chance of rain in the morning. A chance of rain through the night. $$ ANZ534-172200- Chesapeake Bay from Drum Point to Smith Point- 557 AM EST Mon Nov 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...NW winds 20 kt with gusts to 30 kt. Waves 4 ft. .TONIGHT...NW winds 15 to 20 kt. Gusts up to 25 kt until early morning. Waves 2 to 3 ft. .TUE...NW winds 5 to 10 kt...becoming S late. Waves 1 ft. A chance of rain. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. Rain. .WED...NW winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .THU...NE winds 5 to 10 kt...becoming SE after midnight. Waves 1 ft or less. A chance of rain after midnight. .FRI...SW winds 15 to 20 kt...becoming W after midnight. Waves 2 to 3 ft. A chance of rain through the night. $$ ANZ543-172200- Tangier Sound and the inland waters surrounding Bloodsworth Island- 557 AM EST Mon Nov 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...NW winds 20 to 25 kt with gusts to 30 kt. Waves 2 to 3 ft. .TONIGHT...NW winds 15 to 20 kt. Gusts up to 25 kt until early morning. Waves 2 ft. .TUE...NW winds 5 to 10 kt...becoming SW late. Waves 1 ft. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. Rain. .WED...NW winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .THU...NE winds 5 kt...becoming SE after midnight. Waves 1 ft or less. A chance of rain after midnight. .FRI...SW winds 15 to 20 kt. Waves 1 to 2 ft. A chance of rain through the night. $$