Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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719 FZUS51 KLWX 090342 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 1142 PM EDT Fri Aug 8 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. ANZ500-090800- 1142 PM EDT Fri Aug 8 2025 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... High pressure will remain anchored to the north through the weekend. Meanwhile, an area of low pressure is expected to drift along the Southeastern U.S. before eventually turning north and out to sea this weekend. $$ ANZ535-090800- Tidal Potomac from Key Bridge to Indian Head- 1142 PM EDT Fri Aug 8 2025 .REST OF TONIGHT...E winds around 5 kt. Waves 1 ft. .SAT...NE winds around 5 kt. Waves 1 ft. .SAT NIGHT...E winds around 5 kt. Waves 1 ft or less. .SUN...E winds around 5 kt. Waves 1 ft or less. .SUN NIGHT...SE winds around 5 kt. Waves 1 ft. .MON...S winds around 5 kt. Waves 1 ft or less. .MON NIGHT...S winds around 5 kt. Waves 1 ft. .TUE...S winds around 5 kt. Waves 1 ft. .WED...SW winds around 5 kt. Waves 1 ft. A chance of showers through the night. $$ ANZ536-090800- Tidal Potomac from Indian Head to Cobb Island- 1142 PM EDT Fri Aug 8 2025 .REST OF TONIGHT...E winds 5 kt. Waves less than 1 ft. .SAT...NE winds around 5 kt. Waves 1 ft. .SAT NIGHT...SE winds around 5 kt. Waves 1 ft. .SUN...NE winds around 5 kt. Waves 1 ft. .SUN NIGHT...SE winds around 5 kt. Waves 1 ft. .MON...SE winds around 5 kt. Waves 1 ft or less. .MON NIGHT...S winds around 5 kt. Waves 1 ft. .TUE...S winds around 5 kt. Waves 1 ft. .WED...SW winds around 5 kt. Waves 1 ft. $$ ANZ537-090800- Tidal Potomac from Cobb Island to Smith Point- 1142 PM EDT Fri Aug 8 2025 .REST OF TONIGHT...E winds 10 kt. Waves 1 to 2 ft. .SAT...NE winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...E winds around 5 kt. Waves 1 ft. .SUN...E winds around 5 kt. Waves 1 ft. .SUN NIGHT...SE winds around 5 kt. Waves 1 ft. .MON...E winds 5 to 10 kt. Waves 1 ft or less. .MON NIGHT...S winds 5 to 10 kt. Waves 1 ft. .TUE...S winds 5 to 10 kt. Waves 1 ft or less. .WED...S winds 5 to 10 kt. Waves 1 ft. $$ ANZ530-090800- Chesapeake Bay north of Pooles Island- 1142 PM EDT Fri Aug 8 2025 .REST OF TONIGHT...E winds 5 kt. Waves flat. .SAT...NE winds 5 kt. Waves flat. .SAT NIGHT...SE winds around 5 kt. Waves flat. .SUN...E winds around 5 kt. Waves flat. .SUN NIGHT...S winds around 5 kt. Waves flat. .MON...S winds around 5 kt. Waves flat. .MON NIGHT...S winds around 5 kt. Waves flat. .TUE...S winds 5 to 10 kt. Waves 1 ft or less. .WED...SW winds 5 kt. Waves less than 1 ft. $$ ANZ531-090800- Chesapeake Bay from Pooles Island to Sandy Point- 1142 PM EDT Fri Aug 8 2025 .REST OF TONIGHT...SE winds 10 kt...becoming NE late. Waves 1 ft. .SAT...NE winds 5 kt. Waves less than 1 ft. .SAT NIGHT...SE winds around 5 kt. Waves 1 ft or less. .SUN...E winds around 5 kt. Waves flat. .SUN NIGHT...S winds 5 kt. Waves flat. .MON...S winds around 5 kt. Waves 1 ft or less. .MON NIGHT...S winds 5 to 10 kt. Waves 1 ft. .TUE...S winds 5 to 10 kt. Waves 1 ft or less. .WED...S winds 5 to 10 kt. Waves 1 ft. $$ ANZ538-090800- Patapsco River including Baltimore Harbor- 1142 PM EDT Fri Aug 8 2025 .REST OF TONIGHT...SE winds 10 to 15 kt...becoming NE 5 kt late. Waves 1 ft or less. .SAT...NE winds 5 kt. Waves flat. .SAT NIGHT...E winds around 5 kt. Waves flat. .SUN...E winds around 5 kt. Waves flat. .SUN NIGHT...S winds around 5 kt. Waves flat. .MON...S winds around 5 kt. Waves 1 ft or less. .MON NIGHT...S winds around 5 kt. Waves 1 ft or less. .TUE...S winds 5 to 10 kt. Waves 1 ft or less. .WED...S winds around 5 kt. Waves 1 ft or less. A chance of showers through the night. $$ ANZ539-090800- Chester River to Queenstown MD- 1142 PM EDT Fri Aug 8 2025 .REST OF TONIGHT...E winds 5 kt. Waves less than 1 ft. .SAT...NE winds 5 kt. Waves less than 1 ft. .SAT NIGHT...SE winds around 5 kt. Waves flat. .SUN...Light winds. Waves flat. .SUN NIGHT...S winds around 5 kt. Waves flat. .MON...S winds around 5 kt. Waves flat. .MON NIGHT...S winds around 5 kt. Waves 1 ft. .TUE...S winds 5 to 10 kt. Waves 1 ft or less. .WED...S winds 5 to 10 kt. Waves 1 ft. $$ ANZ532-090800- Chesapeake Bay from Sandy Point to North Beach- 1142 PM EDT Fri Aug 8 2025 .REST OF TONIGHT...E winds 5 to 10 kt. Waves 1 ft. .SAT...NE winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...SE winds around 5 kt. Waves 1 ft. .SUN...E winds around 5 kt. Waves flat. .SUN NIGHT...S winds 5 kt. Waves less than 1 ft. .MON...S winds around 5 kt. Waves 1 ft or less. .MON NIGHT...S winds 5 to 10 kt. Waves 1 ft. .TUE...S winds 5 to 10 kt. Waves 1 to 2 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. $$ ANZ540-090800- Eastern Bay- 1142 PM EDT Fri Aug 8 2025 .REST OF TONIGHT...E winds 5 kt. Waves less than 1 ft. .SAT...NE winds 5 kt. Waves less than 1 ft. .SAT NIGHT...SE winds around 5 kt. Waves flat. .SUN...E winds around 5 kt. Waves flat. .SUN NIGHT...S winds around 5 kt. Waves flat. .MON...S winds around 5 kt. Waves flat. .MON NIGHT...S winds 5 kt. Waves less than 1 ft. .TUE...S winds 5 to 10 kt. Waves 1 ft or less. .WED...S winds 5 to 10 kt. Waves 1 ft. $$ ANZ533-090800- Chesapeake Bay from North Beach to Drum Point- 1142 PM EDT Fri Aug 8 2025 .REST OF TONIGHT...E winds 10 kt. Waves 1 ft. .SAT...NE winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...E winds around 5 kt. Waves 1 ft. .SUN...E winds around 5 kt. Waves flat. .SUN NIGHT...S winds around 5 kt. Waves 1 ft. .MON...SE winds around 5 kt. Waves 1 ft or less. .MON NIGHT...S winds 5 to 10 kt. Waves 1 ft. .TUE...S winds 5 to 10 kt. Waves 1 to 2 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. $$ ANZ541-090800- Choptank River to Cambridge MD and the Little Choptank River- 1142 PM EDT Fri Aug 8 2025 .REST OF TONIGHT...E winds 10 kt. Waves 1 ft. .SAT...NE winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...E winds around 5 kt. Waves 1 ft. .SUN...E winds around 5 kt. Waves flat. .SUN NIGHT...S winds around 5 kt. Waves 1 ft or less. .MON...SE winds around 5 kt. Waves flat. .MON NIGHT...S winds 5 to 10 kt. Waves 1 ft. .TUE...S winds 5 to 10 kt. Waves 1 ft or less. .WED...S winds 5 to 10 kt. Waves 1 ft. $$ ANZ542-090800- Patuxent River to Broomes Island MD- 1142 PM EDT Fri Aug 8 2025 .REST OF TONIGHT...E winds 5 to 10 kt. Waves 1 ft. .SAT...NE winds 5 kt. Waves less than 1 ft. .SAT NIGHT...E winds around 5 kt. Waves 1 ft. .SUN...E winds around 5 kt. Waves 1 ft. .SUN NIGHT...S winds around 5 kt. Waves 1 ft. .MON...SE winds around 5 kt. Waves 1 ft. .MON NIGHT...S winds around 5 kt. Waves 1 ft. .TUE...S winds 5 to 10 kt. Waves 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. $$ ANZ534-090800- Chesapeake Bay from Drum Point to Smith Point- 1142 PM EDT Fri Aug 8 2025 .REST OF TONIGHT...NE winds 10 kt. Waves 2 ft. .SAT...NE winds 5 to 10 kt. Waves 1 to 2 ft. .SAT NIGHT...E winds 5 kt. Waves less than 1 ft. .SUN...E winds 5 kt. Waves less than 1 ft. .SUN NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .MON...SE winds 5 to 10 kt. Waves 1 ft or less. .MON NIGHT...S winds 5 to 10 kt. Waves 1 ft. .TUE...S winds 5 to 10 kt. Waves 1 to 2 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. $$ ANZ543-090800- Tangier Sound and the inland waters surrounding Bloodsworth Island- 1142 PM EDT Fri Aug 8 2025 .REST OF TONIGHT...NE winds 10 kt. Waves 1 ft. .SAT...NE winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft. .SUN...E winds 5 kt. Waves less than 1 ft. .SUN NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .MON...SE winds 5 to 10 kt. Waves 1 ft or less. .MON NIGHT...S winds 5 to 10 kt. Waves 1 ft. .TUE...S winds 5 to 10 kt. Waves 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. $$