


Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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428 FZUS51 KLWX 240834 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 434 AM EDT Tue Jun 24 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. ANZ500-242300- 434 AM EDT Tue Jun 24 2025 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... A large area of high pressure will influence the area through tonight. As this dome of high pressure weakens a bit, a frontal boundary settles just off to the north by mid-week. This stalled boundary meanders nearby through Friday before lifting toward New England as a warm front. $$ ANZ535-242300- Tidal Potomac from Key Bridge to Indian Head- 434 AM EDT Tue Jun 24 2025 .REST OF THE OVERNIGHT...Light winds. Waves 1 ft. .TODAY...NW winds around 5 kt. Waves 1 ft. .TONIGHT...NW winds around 5 kt. Waves 1 ft. .WED...NW winds around 5 kt. Waves 1 ft. .WED NIGHT...W winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. .THU...W winds around 5 kt. Waves 1 ft. Showers likely with a chance of tstms. .THU NIGHT...E winds around 5 kt. Waves 1 ft. Showers likely with a chance of tstms. .FRI...E winds around 5 kt. Waves 1 ft. A chance of showers and tstms. .SAT...S winds around 5 kt. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ536-242300- Tidal Potomac from Indian Head to Cobb Island- 434 AM EDT Tue Jun 24 2025 .REST OF THE OVERNIGHT...NW winds 5 kt. Waves less than 1 ft. .TODAY...NW winds around 5 kt. Waves 1 ft. .TONIGHT...NW winds around 5 kt. Waves 1 ft. .WED...NW winds around 5 kt. Waves 1 ft. .WED NIGHT...W winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. .THU...W winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. .THU NIGHT...E winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .FRI...E winds around 5 kt. Waves 1 ft. A chance of showers and tstms. .SAT...S winds around 5 kt. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ537-242300- Tidal Potomac from Cobb Island to Smith Point- 434 AM EDT Tue Jun 24 2025 .REST OF THE OVERNIGHT...NW winds 5 kt. Waves flat. .TODAY...NW winds around 5 kt. Waves flat. .TONIGHT...W winds around 5 kt. Waves flat. .WED...N winds around 5 kt. Waves flat. .WED NIGHT...SW winds around 5 kt. Waves flat. A chance of showers and tstms. .THU...W winds around 5 kt...becoming SE in the afternoon. Waves 1 ft or less. A chance of showers and tstms. .THU NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. A chance of tstms. .SAT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ530-242300- Chesapeake Bay north of Pooles Island- 434 AM EDT Tue Jun 24 2025 .REST OF THE OVERNIGHT...NW winds 5 kt. Waves less than 1 ft. .TODAY...NW winds around 5 kt. Waves 1 ft. .TONIGHT...NW winds around 5 kt. Waves 1 ft. .WED...NW winds around 5 kt. Waves 1 ft. .WED NIGHT...N winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. .THU...E winds around 5 kt. Waves 1 ft. Showers and tstms likely. .THU NIGHT...E winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. .FRI...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SAT...SE winds around 5 kt. Waves 1 ft. A chance of showers. A chance of tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ531-242300- Chesapeake Bay from Pooles Island to Sandy Point- 434 AM EDT Tue Jun 24 2025 .REST OF THE OVERNIGHT...NW winds 5 kt. Waves flat. .TODAY...W winds around 5 kt. Waves flat. .TONIGHT...W winds around 5 kt. Waves flat. .WED...W winds around 5 kt. Waves flat. .WED NIGHT...N winds around 5 kt. Waves flat. A chance of showers and tstms. .THU...E winds 5 kt. Waves less than 1 ft. A chance of tstms. .THU NIGHT...E winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. .FRI...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. A chance of tstms. .SAT...S winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ538-242300- Patapsco River including Baltimore Harbor- 434 AM EDT Tue Jun 24 2025 .REST OF THE OVERNIGHT...Light winds. Waves flat. .TODAY...NW winds around 5 kt. Waves flat. .TONIGHT...NW winds around 5 kt. Waves flat. .WED...NE winds around 5 kt. Waves flat. .WED NIGHT...NE winds around 5 kt. Waves flat. A chance of showers and tstms. .THU...E winds around 5 kt. Waves 1 ft or less. Showers likely with a chance of tstms. .THU NIGHT...E winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .FRI...E winds 5 kt. Waves less than 1 ft. A chance of showers. A chance of tstms. .SAT...S winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ539-242300- Chester River to Queenstown MD- 434 AM EDT Tue Jun 24 2025 .REST OF THE OVERNIGHT...NW winds 5 kt. Waves flat. .TODAY...NW winds around 5 kt. Waves flat. .TONIGHT...W winds around 5 kt. Waves flat. .WED...NW winds around 5 kt. Waves flat. .WED NIGHT...N winds around 5 kt. Waves flat. A chance of showers and tstms. .THU...E winds around 5 kt. Waves flat. Showers likely with a chance of tstms. .THU NIGHT...E winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. .FRI...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. A chance of tstms. .SAT...S winds 5 kt. Waves flat. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ532-242300- Chesapeake Bay from Sandy Point to North Beach- 434 AM EDT Tue Jun 24 2025 .REST OF THE OVERNIGHT...NW winds 5 kt. Waves flat. .TODAY...NW winds 5 kt. Waves flat. .TONIGHT...W winds around 5 kt. Waves flat. .WED...NE winds around 5 kt. Waves flat. .WED NIGHT...SW winds around 5 kt. Waves flat. A chance of showers and tstms. .THU...NE winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .THU NIGHT...E winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. .FRI...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. A chance of tstms. .SAT...S winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ540-242300- Eastern Bay- 434 AM EDT Tue Jun 24 2025 .REST OF THE OVERNIGHT...NW winds 5 kt. Waves flat. .TODAY...NW winds around 5 kt. Waves flat. .TONIGHT...W winds around 5 kt. Waves flat. .WED...NW winds around 5 kt. Waves flat. .WED NIGHT...W winds around 5 kt. Waves flat. A chance of showers and tstms. .THU...W winds 5 kt. Waves flat. Showers likely with a chance of tstms. .THU NIGHT...E winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. .FRI...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. A chance of tstms. .SAT...S winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ533-242300- Chesapeake Bay from North Beach to Drum Point- 434 AM EDT Tue Jun 24 2025 .REST OF THE OVERNIGHT...NW winds 5 kt. Waves flat. .TODAY...N winds 5 kt. Waves flat. .TONIGHT...W winds around 5 kt. Waves flat. .WED...N winds 5 kt. Waves flat. .WED NIGHT...SW winds around 5 kt. Waves flat. A chance of showers and tstms. .THU...NE winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. .THU NIGHT...E winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. .FRI...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. A chance of tstms. .SAT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ541-242300- Choptank River to Cambridge MD and the Little Choptank River- 434 AM EDT Tue Jun 24 2025 .REST OF THE OVERNIGHT...NW winds 5 kt. Waves flat. .TODAY...NW winds around 5 kt. Waves flat. .TONIGHT...W winds around 5 kt. Waves flat. .WED...NW winds around 5 kt. Waves flat. .WED NIGHT...W winds around 5 kt. Waves flat. A chance of showers and tstms. .THU...W winds around 5 kt. Waves flat. A chance of showers and tstms. .THU NIGHT...E winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. .FRI...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. A chance of tstms. .SAT...S winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ542-242300- Patuxent River to Broomes Island MD- 434 AM EDT Tue Jun 24 2025 .REST OF THE OVERNIGHT...Light winds. Waves 1 ft. .TODAY...N winds around 5 kt. Waves 1 ft. .TONIGHT...W winds around 5 kt. Waves 1 ft. .WED...N winds around 5 kt. Waves 1 ft. .WED NIGHT...SW winds around 5 kt. Waves 1 ft. A chance of showers and tstms. .THU...NE winds around 5 kt. Waves 1 ft. A chance of showers and tstms. .THU NIGHT...E winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .FRI...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. A chance of tstms. .SAT...S winds around 5 kt. Waves 1 ft. A chance of showers and tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ534-242300- Chesapeake Bay from Drum Point to Smith Point- 434 AM EDT Tue Jun 24 2025 .REST OF THE OVERNIGHT...NW winds 5 kt. Waves flat. .TODAY...NW winds 5 kt. Waves less than 1 ft. .TONIGHT...SW winds 5 kt. Waves flat. .WED...NW winds 5 kt. Waves less than 1 ft. .WED NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .THU NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. A chance of tstms. .SAT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ543-242300- Tangier Sound and the inland waters surrounding Bloodsworth Island- 434 AM EDT Tue Jun 24 2025 .REST OF THE OVERNIGHT...W winds 5 kt. Waves flat. .TODAY...NW winds 5 kt. Waves less than 1 ft. .TONIGHT...SW winds 5 kt. Waves flat. .WED...NW winds 5 kt. Waves less than 1 ft. .WED NIGHT...SW winds 5 kt. Waves flat. .THU...SW winds 5 to 10 kt. Waves 1 ft or less. A chance of showers and tstms. .THU NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. A chance of tstms. .SAT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$