


Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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855 FZUS51 KLWX 251735 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 134 PM EDT Wed Jun 25 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. ANZ500-260800- 134 PM EDT Wed Jun 25 2025 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... A large area of high pressure will influence the area through this evening. As this dome of high pressure weakens a bit, a front will slowly approach from the north Thursday through Friday while stalling nearby. The front will return northward as a warm front into New England this weekend. $$ ANZ535-260800- Tidal Potomac from Key Bridge to Indian Head- 134 PM EDT Wed Jun 25 2025 .THIS AFTERNOON...W winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. .TONIGHT...W winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. Vsby 1 NM or less. .THU...NE winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. Vsby 1 NM or less. .THU NIGHT...E winds around 5 kt. Waves 1 ft. Showers and tstms likely. .FRI...E winds around 5 kt. Waves 1 ft. A chance of showers and tstms. .FRI NIGHT...SE winds around 5 kt. Waves 1 ft. A chance of showers and tstms. .SAT...S winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. .SUN...E winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ536-260800- Tidal Potomac from Indian Head to Cobb Island- 134 PM EDT Wed Jun 25 2025 .THIS AFTERNOON...N winds 5 kt. Waves less than 1 ft. Isolated showers and tstms. .TONIGHT...NW 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 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. .FRI NIGHT...SE winds around 5 kt. Waves 1 ft. A chance of showers and tstms. .SAT...SW winds around 5 kt. Waves 1 ft. A chance of showers and tstms. .SUN...SE 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. $$ ANZ537-260800- Tidal Potomac from Cobb Island to Smith Point- 134 PM EDT Wed Jun 25 2025 .THIS AFTERNOON...N winds 5 kt. Waves flat. .TONIGHT...SW winds around 5 kt. Waves flat. A chance of showers and tstms. .THU...SW winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. .THU NIGHT...E winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .FRI...E winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SAT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. .SUN...SE winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ530-260800- Chesapeake Bay north of Pooles Island- 134 PM EDT Wed Jun 25 2025 .THIS AFTERNOON...NW winds 5 kt. Waves flat. Scattered showers and tstms. .TONIGHT...NW winds around 5 kt. Waves flat. A chance of showers and tstms. .THU...NE winds around 5 kt. Waves flat. Showers and tstms likely. Vsby 1 NM or less. .THU NIGHT...E winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. .FRI...E winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft or less. A chance of showers and tstms. .SAT...S winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. .SUN...E winds around 5 kt. Waves flat. A chance of showers and tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ531-260800- Chesapeake Bay from Pooles Island to Sandy Point- 134 PM EDT Wed Jun 25 2025 .THIS AFTERNOON...SW winds 5 kt. Waves flat. Isolated showers and tstms. .TONIGHT...NW winds around 5 kt. Waves flat. A chance of showers and tstms. Vsby 1 NM or less. .THU...NE winds around 5 kt. Waves flat. Showers and tstms likely. Vsby 1 NM or less. .THU NIGHT...E winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely. .FRI...E winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SAT...S winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. .SUN...E winds around 5 kt. Waves flat. A chance of showers and tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ538-260800- Patapsco River including Baltimore Harbor- 134 PM EDT Wed Jun 25 2025 .THIS AFTERNOON...SE winds 5 kt. Waves flat. Scattered showers and tstms. .TONIGHT...NW winds around 5 kt. Waves flat. A chance of showers and tstms. Vsby 1 NM or less. .THU...E winds around 5 kt. Waves flat. Showers and tstms likely. Vsby 1 NM or less. .THU NIGHT...E winds 5 kt. Waves less than 1 ft. Showers and tstms likely. .FRI...E winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .FRI NIGHT...E winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .SAT...S winds around 5 kt. Waves flat. A chance of showers and tstms. .SUN...E winds around 5 kt. Waves flat. A chance of showers and tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ539-260800- Chester River to Queenstown MD- 134 PM EDT Wed Jun 25 2025 .THIS AFTERNOON...NW winds 5 kt. Waves flat. .TONIGHT...NW winds around 5 kt. Waves flat. A chance of showers and tstms. .THU...NW winds around 5 kt. Waves flat. Showers and tstms likely. .THU NIGHT...E winds 5 kt. Waves less than 1 ft. Showers and tstms likely. .FRI...E winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .FRI NIGHT...E winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .SAT...S winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. .SUN...E winds around 5 kt. Waves flat. A chance of showers and tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ532-260800- Chesapeake Bay from Sandy Point to North Beach- 134 PM EDT Wed Jun 25 2025 .THIS AFTERNOON...E winds 5 kt. Waves flat. .TONIGHT...NW winds around 5 kt. Waves flat. A chance of showers and tstms. .THU...NE winds around 5 kt. Waves flat. A chance of showers and tstms. Vsby 1 NM or less. .THU NIGHT...E winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely. .FRI...E winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SAT...S winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .SUN...E winds around 5 kt. Waves flat. A chance of showers and tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ540-260800- Eastern Bay- 134 PM EDT Wed Jun 25 2025 .THIS AFTERNOON...NW winds 5 kt. Waves flat. .TONIGHT...NW winds around 5 kt. Waves flat. A chance of showers and tstms. .THU...NW winds 5 kt. Waves flat. Showers likely with a chance of tstms. .THU NIGHT...E winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely. .FRI...E winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SAT...S winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .SUN...E winds around 5 kt. Waves flat. A chance of showers and tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ533-260800- Chesapeake Bay from North Beach to Drum Point- 134 PM EDT Wed Jun 25 2025 .THIS AFTERNOON...N winds 5 kt. Waves flat. .TONIGHT...NW 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. Vsby 1 NM or less. .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 and tstms. .FRI NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SAT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SUN...SE 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. $$ ANZ541-260800- Choptank River to Cambridge MD and the Little Choptank River- 134 PM EDT Wed Jun 25 2025 .THIS AFTERNOON...NW winds 5 kt. Waves flat. .TONIGHT...NW winds around 5 kt. Waves flat. A chance of showers and tstms. .THU...NW winds around 5 kt. Waves flat. A chance of showers and tstms. Vsby 1 NM or less. .THU NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI...E winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .FRI NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SAT...S winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .SUN...E winds around 5 kt. Waves flat. A chance of showers and tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ542-260800- Patuxent River to Broomes Island MD- 134 PM EDT Wed Jun 25 2025 .THIS AFTERNOON...N winds 5 kt. Waves less than 1 ft. .TONIGHT...NW winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. .THU...E winds around 5 kt. Waves 1 ft. A chance of showers and tstms. .THU NIGHT...E winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .FRI...E winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .FRI NIGHT...SE winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .SAT...S winds around 5 kt. Waves 1 ft. A chance of showers and tstms. .SUN...SE winds around 5 kt. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ534-260800- Chesapeake Bay from Drum Point to Smith Point- 134 PM EDT Wed Jun 25 2025 .THIS AFTERNOON...NW winds 5 kt. Waves less than 1 ft. .TONIGHT...SW winds 5 kt. Waves flat. .THU...NW winds 5 kt...becoming S late. Waves 1 ft or less. A chance of showers and tstms. .THU NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI...E winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SAT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. .SUN...W winds 5 to 10 kt...becoming S. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ543-260800- Tangier Sound and the inland waters surrounding Bloodsworth Island- 134 PM EDT Wed Jun 25 2025 .THIS AFTERNOON...W winds 5 kt. Waves flat. .TONIGHT...SW winds 5 kt. Waves flat. .THU...W winds 5 kt...becoming S late. Waves 1 ft or less. .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 and tstms. .FRI NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SAT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. .SUN...SW winds 5 to 10 kt...becoming S. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$