Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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520 FZUS51 KLWX 030835 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 435 AM EDT Thu Jul 3 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. ANZ500-032300- 435 AM EDT Thu Jul 3 2025 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... High pressure will build in for the end of the week. A cold front will approach the waters from the northwest early next week. $$ ANZ535-032300- Tidal Potomac from Key Bridge to Indian Head- 435 AM EDT Thu Jul 3 2025 .REST OF THE OVERNIGHT...Light winds. Waves 1 ft. .TODAY...NW winds around 5 kt. Waves 1 ft. .TONIGHT...NW winds around 5 kt. Waves 1 ft. .FRI...N winds around 5 kt. Waves 1 ft. .FRI NIGHT...E winds around 5 kt. Waves 1 ft or less. .SAT...SE winds around 5 kt. Waves 1 ft or less. .SAT NIGHT...S winds around 5 kt. Waves 1 ft. .SUN...S winds around 5 kt. Waves 1 ft. .MON...S winds around 5 kt. Waves 1 ft. $$ ANZ536-032300- Tidal Potomac from Indian Head to Cobb Island- 435 AM EDT Thu Jul 3 2025 .REST OF THE OVERNIGHT...W 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. .FRI...N winds 5 kt. Waves less than 1 ft. .FRI NIGHT...SE winds around 5 kt. Waves 1 ft or less. .SAT...SE winds around 5 kt. Waves 1 ft or less. .SAT NIGHT...S winds around 5 kt. Waves 1 ft. .SUN...S winds 5 to 10 kt. Waves 1 ft. .MON...S winds 5 kt. Waves less than 1 ft. $$ ANZ537-032300- Tidal Potomac from Cobb Island to Smith Point- 435 AM EDT Thu Jul 3 2025 .REST OF THE OVERNIGHT...W winds 5 kt. Waves flat. .TODAY...W winds 5 kt. Waves less than 1 ft. .TONIGHT...W winds 5 kt...becoming N late. Waves 1 ft or less. .FRI...N winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...E winds around 5 kt. Waves 1 ft. .SAT...E winds 5 to 10 kt. Waves 1 ft or less. .SAT NIGHT...S winds 5 to 10 kt. Waves 1 ft. .SUN...S winds 5 to 10 kt. Waves 1 ft. .MON...S winds 5 to 10 kt. Waves 1 ft. $$ ANZ530-032300- Chesapeake Bay north of Pooles Island- 435 AM EDT Thu Jul 3 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 5 to 10 kt. Waves 1 ft. .FRI...N winds 5 kt. Waves less than 1 ft. .FRI NIGHT...NE winds around 5 kt. Waves 1 ft or less. .SAT...SE winds around 5 kt. Waves 1 ft or less. .SAT NIGHT...S winds 5 kt. Waves less than 1 ft. .SUN...S winds 5 to 10 kt. Waves 1 ft. .MON...S winds 5 to 10 kt. Waves 1 ft. $$ ANZ531-032300- Chesapeake Bay from Pooles Island to Sandy Point- 435 AM EDT Thu Jul 3 2025 .REST OF THE OVERNIGHT...W winds 5 kt. Waves flat. .TODAY...W winds 5 kt. Waves less than 1 ft. .TONIGHT...NW winds 5 to 10 kt. Waves 1 ft. .FRI...N winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...NE winds around 5 kt. Waves 1 ft or less. .SAT...SE winds around 5 kt. Waves 1 ft or less. .SAT NIGHT...S winds 5 to 10 kt. Waves 1 ft. .SUN...S winds 5 to 10 kt. Waves 1 ft. .MON...S winds 5 to 10 kt. Waves 1 ft. $$ ANZ538-032300- Patapsco River including Baltimore Harbor- 435 AM EDT Thu Jul 3 2025 .REST OF THE OVERNIGHT...W winds 5 kt. Waves flat. .TODAY...W winds 5 kt. Waves flat. .TONIGHT...NW winds 5 kt. Waves flat. .FRI...N winds 5 kt. Waves flat. .FRI NIGHT...NE winds around 5 kt. Waves flat. .SAT...SE winds around 5 kt. Waves flat. .SAT NIGHT...S winds 5 kt. Waves flat. .SUN...S winds 5 to 10 kt. Waves 1 ft or less. .MON...S winds 5 to 10 kt. Waves 1 ft or less. $$ ANZ539-032300- Chester River to Queenstown MD- 435 AM EDT Thu Jul 3 2025 .REST OF THE OVERNIGHT...W winds 5 kt. Waves flat. .TODAY...W winds 5 kt. Waves less than 1 ft. .TONIGHT...NW winds 5 kt. Waves less than 1 ft. .FRI...N winds 5 kt. Waves less than 1 ft. .FRI NIGHT...E winds around 5 kt. Waves flat. .SAT...SE winds around 5 kt. Waves flat. .SAT NIGHT...S winds 5 kt. Waves less than 1 ft. .SUN...S winds 5 to 10 kt. Waves 1 ft. .MON...S winds 5 to 10 kt. Waves 1 ft. $$ ANZ532-032300- Chesapeake Bay from Sandy Point to North Beach- 435 AM EDT Thu Jul 3 2025 .REST OF THE OVERNIGHT...W winds 5 kt. Waves flat. .TODAY...W winds 5 kt. Waves less than 1 ft. .TONIGHT...W winds 5 kt...becoming N after midnight. Waves 1 ft. .FRI...N winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...E winds around 5 kt. Waves 1 ft or less. .SAT...SE winds around 5 kt. Waves 1 ft or less. .SAT NIGHT...S winds 5 to 10 kt. Waves 1 ft. .SUN...S winds 5 to 10 kt. Waves 1 to 2 ft. .MON...S winds 5 to 10 kt. Waves 1 ft. $$ ANZ540-032300- Eastern Bay- 435 AM EDT Thu Jul 3 2025 .REST OF THE OVERNIGHT...W winds 5 kt. Waves flat. .TODAY...W winds 5 kt. Waves less than 1 ft. .TONIGHT...NW winds 5 kt. Waves less than 1 ft. .FRI...N winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...E winds around 5 kt. Waves flat. .SAT...SE winds around 5 kt. Waves flat. .SAT NIGHT...S winds 5 kt. Waves less than 1 ft. .SUN...S winds 5 to 10 kt. Waves 1 ft or less. .MON...S winds 5 to 10 kt. Waves 1 ft. $$ ANZ533-032300- Chesapeake Bay from North Beach to Drum Point- 435 AM EDT Thu Jul 3 2025 .REST OF THE OVERNIGHT...W winds 5 kt. Waves flat. .TODAY...W winds 5 kt. Waves flat. .TONIGHT...W winds 5 to 10 kt...becoming N late. Waves 1 ft. .FRI...N winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...E winds around 5 kt. Waves 1 ft or less. .SAT...SE winds around 5 kt. Waves 1 ft or less. .SAT NIGHT...S winds 5 to 10 kt. Waves 1 ft. .SUN...S winds 5 to 10 kt. Waves 1 to 2 ft. .MON...S winds 5 to 10 kt. Waves 1 ft. $$ ANZ541-032300- Choptank River to Cambridge MD and the Little Choptank River- 435 AM EDT Thu Jul 3 2025 .REST OF THE OVERNIGHT...W winds 5 kt. Waves flat. .TODAY...W winds 5 kt. Waves flat. .TONIGHT...W winds 5 kt...becoming N late. Waves 1 ft. .FRI...N winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...E winds around 5 kt. Waves 1 ft or less. .SAT...SE winds around 5 kt. Waves flat. .SAT NIGHT...S winds 5 to 10 kt. Waves 1 ft. .SUN...S winds 5 to 10 kt. Waves 1 ft. .MON...S winds 5 to 10 kt. Waves 1 ft. $$ ANZ542-032300- Patuxent River to Broomes Island MD- 435 AM EDT Thu Jul 3 2025 .REST OF THE OVERNIGHT...W winds 5 kt. Waves less than 1 ft. .TODAY...W winds around 5 kt. Waves 1 ft. .TONIGHT...NW winds around 5 kt. Waves 1 ft. .FRI...N winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...E winds around 5 kt. Waves 1 ft. .SAT...SE winds around 5 kt. Waves 1 ft. .SAT NIGHT...S winds 5 kt. Waves less than 1 ft. .SUN...S winds 5 to 10 kt. Waves 1 ft. .MON...S winds 5 to 10 kt. Waves 1 ft. $$ ANZ534-032300- Chesapeake Bay from Drum Point to Smith Point- 435 AM EDT Thu Jul 3 2025 .REST OF THE OVERNIGHT...W winds 5 kt. Waves less than 1 ft. .TODAY...W winds 5 kt. Waves less than 1 ft. .TONIGHT...SW winds 5 to 10 kt...becoming N late. Waves 1 ft. .FRI...N winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...E winds 5 kt. Waves less than 1 ft. .SAT...SE winds 5 kt. Waves less than 1 ft. .SAT NIGHT...S winds 5 to 10 kt. Waves 1 ft. .SUN...S winds 10 to 15 kt. Waves 1 to 2 ft. .MON...S winds 5 to 10 kt. Waves 1 to 2 ft. $$ ANZ543-032300- Tangier Sound and the inland waters surrounding Bloodsworth Island- 435 AM EDT Thu Jul 3 2025 .REST OF THE OVERNIGHT...W winds 5 kt. Waves less than 1 ft. .TODAY...W winds 5 kt. Waves less than 1 ft. .TONIGHT...SW winds 5 to 10 kt...becoming N late. Waves 1 ft. .FRI...N winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...E winds 5 kt. Waves less than 1 ft. .SAT...SE winds 5 kt. Waves less than 1 ft. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SUN...S winds 10 to 15 kt. Waves 1 ft. .MON...S winds 5 to 10 kt. Waves 1 ft. $$