Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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526 FZUS51 KLWX 022335 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 735 PM EDT Sat Aug 2 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. ANZ500-030800- 735 PM EDT Sat Aug 2 2025 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... High pressure will continue to build to the north through the weekend. The high will shift offshore heading into early next week. A frontal system may approach by the middle of next week. $$ ANZ535-030800- Tidal Potomac from Key Bridge to Indian Head- 735 PM EDT Sat Aug 2 2025 .TONIGHT...NE winds 5 kt. Waves less than 1 ft. .SUN...NE winds around 5 kt. Waves 1 ft. .SUN NIGHT...E winds around 5 kt. Waves 1 ft or less. .MON...NE winds around 5 kt. Waves 1 ft. .MON NIGHT...SW winds around 5 kt. Waves 1 ft or less. .TUE...NE winds around 5 kt. Waves 1 ft. .TUE NIGHT...E winds around 5 kt. Waves 1 ft. .WED...E winds around 5 kt. Waves 1 ft. A chance of showers after midnight. .THU...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. $$ ANZ536-030800- Tidal Potomac from Indian Head to Cobb Island- 735 PM EDT Sat Aug 2 2025 .TONIGHT...NE winds 5 to 10 kt. Waves 1 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...NE winds around 5 kt. Waves 1 ft. .MON...NE winds around 5 kt. Waves 1 ft. .MON NIGHT...NE winds around 5 kt. Waves 1 ft or less. .TUE...NE winds around 5 kt. Waves 1 ft. .TUE NIGHT...E winds around 5 kt. Waves 1 ft. .WED...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. .THU...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. $$ ANZ537-030800- Tidal Potomac from Cobb Island to Smith Point- 735 PM EDT Sat Aug 2 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .TONIGHT...NE winds 10 kt with gusts to 20 kt. Waves 2 ft. .SUN...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .SUN NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. .MON NIGHT...E winds around 5 kt. Waves 1 ft. .TUE...NE winds 5 to 10 kt. Waves 1 ft. .TUE NIGHT...E winds 5 to 10 kt. Waves 1 ft. .WED...E winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers through the night. .THU...E winds 5 to 10 kt. Waves 2 ft. A chance of showers. $$ ANZ530-030800- Chesapeake Bay north of Pooles Island- 735 PM EDT Sat Aug 2 2025 .TONIGHT...E winds 5 kt. Waves less than 1 ft. .SUN...NE winds 5 kt. Waves less than 1 ft. .SUN NIGHT...E winds around 5 kt. Waves flat. .MON...NE winds around 5 kt. Waves flat. .MON NIGHT...E winds around 5 kt. Waves flat. .TUE...E winds around 5 kt. Waves flat. .TUE NIGHT...E winds 5 kt. Waves less than 1 ft. .WED...E winds 5 to 10 kt. Waves 1 ft. .THU...E winds 5 to 10 kt. Waves 1 ft. $$ ANZ531-030800- Chesapeake Bay from Pooles Island to Sandy Point- 735 PM EDT Sat Aug 2 2025 .TONIGHT...E winds 5 kt. Waves less than 1 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...E winds around 5 kt. Waves 1 ft or less. .MON...NE winds 5 kt. Waves less than 1 ft. .MON NIGHT...SE winds around 5 kt. Waves flat. .TUE...E winds 5 kt. Waves less than 1 ft. .TUE NIGHT...E winds 5 to 10 kt. Waves 1 ft. .WED...E winds 5 to 10 kt. Waves 1 ft. .THU...E winds 5 to 10 kt. Waves 1 ft. $$ ANZ538-030800- Patapsco River including Baltimore Harbor- 735 PM EDT Sat Aug 2 2025 .TONIGHT...NE winds 5 kt. Waves less than 1 ft. .SUN...NE winds 5 to 10 kt...becoming E late. Waves 1 ft or less. .SUN NIGHT...E winds around 5 kt. Waves flat. .MON...NE winds 5 kt. Waves less than 1 ft. .MON NIGHT...SW winds around 5 kt. Waves flat. .TUE...NE winds around 5 kt. Waves 1 ft or less. .TUE NIGHT...E winds 5 kt. Waves less than 1 ft. .WED...E winds 5 to 10 kt. Waves 1 ft. .THU...E winds 5 to 10 kt. Waves 1 ft. $$ ANZ539-030800- Chester River to Queenstown MD- 735 PM EDT Sat Aug 2 2025 .TONIGHT...E winds 5 kt. Waves less than 1 ft. .SUN...NE winds 5 kt. Waves less than 1 ft. .SUN NIGHT...E winds around 5 kt. Waves flat. .MON...NE winds 5 kt. Waves flat. .MON NIGHT...SE winds around 5 kt. Waves flat. .TUE...E winds 5 kt. Waves flat. .TUE NIGHT...E winds 5 kt. Waves less than 1 ft. .WED...E winds 5 to 10 kt. Waves 1 ft. A chance of showers after midnight. .THU...E winds 5 to 10 kt. Waves 1 ft. A chance of showers in the morning. $$ ANZ532-030800- Chesapeake Bay from Sandy Point to North Beach- 735 PM EDT Sat Aug 2 2025 .TONIGHT...E winds 5 to 10 kt. Waves 1 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...E winds 5 kt. Waves less than 1 ft. .MON...NE winds 5 kt. Waves less than 1 ft. .MON NIGHT...SE winds around 5 kt. Waves 1 ft or less. .TUE...NE winds 5 kt. Waves less than 1 ft. .TUE NIGHT...E winds 5 to 10 kt. Waves 1 ft. .WED...E winds 5 to 10 kt. Waves 1 ft. A chance of showers after midnight. .THU...E winds 10 kt. Waves 1 ft. A chance of showers in the morning. $$ ANZ540-030800- Eastern Bay- 735 PM EDT Sat Aug 2 2025 .TONIGHT...E winds 5 to 10 kt. Waves 1 ft or less. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...E winds 5 kt. Waves less than 1 ft. .MON...NE winds 5 kt. Waves less than 1 ft. .MON NIGHT...SE winds around 5 kt. Waves flat. .TUE...NE winds 5 kt. Waves less than 1 ft. .TUE NIGHT...E winds 5 to 10 kt. Waves 1 ft. .WED...E winds 5 to 10 kt. Waves 1 ft. A chance of showers after midnight. .THU...E winds 5 to 10 kt. Waves 1 ft. A chance of showers in the morning. $$ ANZ533-030800- Chesapeake Bay from North Beach to Drum Point- 735 PM EDT Sat Aug 2 2025 .TONIGHT...E winds 10 kt. Waves 1 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. .MON NIGHT...E winds around 5 kt. Waves 1 ft or less. .TUE...NE winds 5 to 10 kt. Waves 1 ft. .TUE NIGHT...E winds 5 to 10 kt. Waves 1 ft. .WED...E winds 5 to 10 kt. Waves 1 ft. A chance of showers after midnight. .THU...E winds 10 kt. Waves 1 to 2 ft. A chance of showers. $$ ANZ541-030800- Choptank River to Cambridge MD and the Little Choptank River- 735 PM EDT Sat Aug 2 2025 .TONIGHT...E winds 5 to 10 kt. Waves 1 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. .MON NIGHT...E winds around 5 kt. Waves 1 ft or less. .TUE...NE winds 5 to 10 kt. Waves 1 ft. .TUE NIGHT...E winds 5 to 10 kt. Waves 1 ft. .WED...E winds 5 to 10 kt. Waves 1 ft. A chance of showers after midnight. .THU...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. $$ ANZ542-030800- Patuxent River to Broomes Island MD- 735 PM EDT Sat Aug 2 2025 .TONIGHT...E winds 5 to 10 kt. Waves 1 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. .MON NIGHT...E winds around 5 kt. Waves 1 ft. .TUE...NE winds 5 to 10 kt. Waves 1 ft. .TUE NIGHT...E winds 5 to 10 kt. Waves 1 ft. .WED...E winds 5 to 10 kt. Waves 1 ft. A chance of showers after midnight. .THU...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. $$ ANZ534-030800- Chesapeake Bay from Drum Point to Smith Point- 735 PM EDT Sat Aug 2 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .TONIGHT...NE winds 15 kt with gusts to 20 kt. Waves 2 ft. .SUN...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .SUN NIGHT...NE winds 10 kt. Waves 1 to 2 ft. .MON...NE winds 5 to 10 kt. Waves 1 to 2 ft. .MON NIGHT...E winds 5 to 10 kt. Waves 1 ft. .TUE...NE winds 5 to 10 kt. Waves 1 ft. .TUE NIGHT...E winds 5 to 10 kt. Waves 1 ft. .WED...E winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers after midnight. .THU...E winds 10 to 15 kt. Waves 2 ft. A chance of showers. $$ ANZ543-030800- Tangier Sound and the inland waters surrounding Bloodsworth Island- 735 PM EDT Sat Aug 2 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .SUN...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .SUN NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. .MON NIGHT...E winds 5 to 10 kt. Waves 1 ft. .TUE...NE winds 5 to 10 kt. Waves 1 ft. .TUE NIGHT...E winds 5 to 10 kt. Waves 1 ft. .WED...E winds 10 to 15 kt. Waves 1 ft. A chance of showers after midnight. .THU...E winds 10 to 15 kt. Waves 1 ft. A chance of showers. $$