Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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317 FZUS51 KLWX 020834 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 434 AM 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. ANZ500-022300- 434 AM EDT Sat Aug 2 2025 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... High pressure will build to the north through the weekend. The high will shift offshore early next week. A frontal system may approach by the middle of next week. $$ ANZ535-022300- Tidal Potomac from Key Bridge to Indian Head- 434 AM EDT Sat Aug 2 2025 .REST OF THE OVERNIGHT...N winds 5 kt. Waves less than 1 ft. .TODAY...NE winds 5 kt. Waves less than 1 ft. .TONIGHT...NE winds around 5 kt. Waves 1 ft. .SUN...NE winds around 5 kt. Waves 1 ft. .SUN NIGHT...E winds around 5 kt. Waves 1 ft or less. .MON...NE winds around 5 kt. Waves 1 ft. .MON NIGHT...NE winds around 5 kt. Waves 1 ft or less. .TUE...E winds around 5 kt. Waves 1 ft. .WED...E winds around 5 kt. Waves 1 ft. A chance of showers. $$ ANZ536-022300- Tidal Potomac from Indian Head to Cobb Island- 434 AM EDT Sat Aug 2 2025 .REST OF THE OVERNIGHT...N winds 10 kt. Waves 1 ft. .TODAY...NE winds 5 to 10 kt. Waves 1 ft. .TONIGHT...NE winds around 5 kt. Waves 1 ft. .SUN...NE winds 5 kt. Waves less than 1 ft. .SUN NIGHT...NE winds around 5 kt. Waves 1 ft. .MON...NE winds 5 kt. Waves less than 1 ft. .MON NIGHT...NE winds around 5 kt. Waves 1 ft or less. .TUE...NE winds around 5 kt. Waves 1 ft. .WED...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers. $$ ANZ537-022300- Tidal Potomac from Cobb Island to Smith Point- 434 AM EDT Sat Aug 2 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF THE OVERNIGHT...NE winds 15 kt with gusts to 25 kt. Waves 3 ft. .TODAY...NE winds 10 to 15 kt with gusts to 25 kt. Waves 2 to 3 ft. .TONIGHT...NE winds 5 to 10 kt with gusts to 20 kt. Waves 2 ft. .SUN...NE winds 5 to 10 kt. Waves 2 ft. .SUN NIGHT...NE winds 5 to 10 kt. Waves 1 to 2 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. .MON NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .TUE...E winds 5 to 10 kt. Waves 1 ft. .WED...E winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers. $$ ANZ530-022300- Chesapeake Bay north of Pooles Island- 434 AM EDT Sat Aug 2 2025 .REST OF THE OVERNIGHT...N winds 10 kt. Waves 1 ft. .TODAY...NE winds 5 to 10 kt. Waves 1 ft. .TONIGHT...E winds around 5 kt. Waves 1 ft. .SUN...NE winds around 5 kt. Waves 1 ft. .SUN NIGHT...E winds around 5 kt. Waves 1 ft. .MON...NE winds around 5 kt. Waves 1 ft. .MON NIGHT...E winds around 5 kt. Waves 1 ft or less. .TUE...E winds around 5 kt. Waves 1 ft. .WED...E winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. $$ ANZ531-022300- Chesapeake Bay from Pooles Island to Sandy Point- 434 AM EDT Sat Aug 2 2025 .REST OF THE OVERNIGHT...NE winds 10 kt. Waves 1 ft. .TODAY...NE winds 5 to 10 kt. Waves 1 ft. .TONIGHT...E winds 5 kt. Waves less than 1 ft. .SUN...NE winds 5 kt. Waves less than 1 ft. .SUN NIGHT...E winds 5 kt. Waves less than 1 ft. .MON...NE winds 5 kt. Waves less than 1 ft. .MON NIGHT...E winds around 5 kt. Waves 1 ft or less. .TUE...E winds 5 to 10 kt. Waves 1 ft or less. .WED...E winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. $$ ANZ538-022300- Patapsco River including Baltimore Harbor- 434 AM EDT Sat Aug 2 2025 .REST OF THE OVERNIGHT...N winds 5 kt. Waves less than 1 ft. .TODAY...NE winds 5 to 10 kt. Waves 1 ft. .TONIGHT...NE winds around 5 kt. Waves 1 ft or less. .SUN...NE winds around 5 kt. Waves 1 ft or less. .SUN NIGHT...E winds around 5 kt. Waves flat. .MON...NE winds around 5 kt. Waves 1 ft or less. .MON NIGHT...E winds around 5 kt. Waves flat. .TUE...E winds around 5 kt. Waves 1 ft or less. .WED...E winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. $$ ANZ539-022300- Chester River to Queenstown MD- 434 AM EDT Sat Aug 2 2025 .REST OF THE OVERNIGHT...NE winds 10 kt. Waves 1 ft. .TODAY...NE winds 5 to 10 kt. Waves 1 ft. .TONIGHT...E winds around 5 kt. Waves 1 ft or less. .SUN...NE winds 5 kt. Waves flat. .SUN NIGHT...E winds around 5 kt. Waves flat. .MON...NE winds 5 kt. Waves flat. .MON NIGHT...E winds around 5 kt. Waves flat. .TUE...E winds 5 kt. Waves less than 1 ft. .WED...E winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. $$ ANZ532-022300- Chesapeake Bay from Sandy Point to North Beach- 434 AM EDT Sat Aug 2 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY... .REST OF THE OVERNIGHT...NE winds 15 kt with gusts to 20 kt. Waves 2 ft. .TODAY...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .TONIGHT...E winds 5 to 10 kt. Waves 1 ft. .SUN...NE winds 5 kt. Waves less than 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...E winds 5 to 10 kt. Waves 1 ft or less. .WED...E winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. $$ ANZ540-022300- Eastern Bay- 434 AM EDT Sat Aug 2 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY... .REST OF THE OVERNIGHT...NE winds 10 kt. Waves 1 ft. .TODAY...NE winds 5 to 10 kt. Waves 1 ft. .TONIGHT...E winds 5 kt. Waves less than 1 ft. .SUN...NE winds 5 kt. Waves less than 1 ft. .SUN NIGHT...E winds 5 kt. Waves less than 1 ft. .MON...NE winds 5 kt. Waves less than 1 ft. .MON NIGHT...E winds around 5 kt. Waves flat. .TUE...E winds 5 kt. Waves less than 1 ft. .WED...E winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. $$ ANZ533-022300- Chesapeake Bay from North Beach to Drum Point- 434 AM EDT Sat Aug 2 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY... .REST OF THE OVERNIGHT...NE winds 15 kt with gusts to 20 kt. Waves 2 ft. .TODAY...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .TONIGHT...E winds 5 to 10 kt. Waves 1 to 2 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 5 kt. Waves less than 1 ft. .TUE...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. $$ ANZ541-022300- Choptank River to Cambridge MD and the Little Choptank River- 434 AM EDT Sat Aug 2 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY... .REST OF THE OVERNIGHT...NE winds 15 kt with gusts to 20 kt. Waves 2 ft. .TODAY...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .TONIGHT...E winds 5 to 10 kt. Waves 1 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. .MON NIGHT...E winds around 5 kt. Waves 1 ft or less. .TUE...E winds 5 to 10 kt. Waves 1 ft. .WED...E winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. $$ ANZ542-022300- Patuxent River to Broomes Island MD- 434 AM EDT Sat Aug 2 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY... .REST OF THE OVERNIGHT...NE winds 10 kt with gusts to 20 kt. Waves 1 ft. .TODAY...NE winds 10 kt with gusts to 20 kt. Waves 1 ft. .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...NE winds around 5 kt. Waves 1 ft. .TUE...NE winds 5 to 10 kt. Waves 1 ft. .WED...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. $$ ANZ534-022300- Chesapeake Bay from Drum Point to Smith Point- 434 AM EDT Sat Aug 2 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF THE OVERNIGHT...NE winds 20 kt with gusts to 25 kt. Waves 3 ft. .TODAY...NE winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. .TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .SUN...NE winds 10 kt. Waves 2 ft. .SUN NIGHT...NE winds 10 kt. Waves 1 to 2 ft. .MON...NE winds 5 to 10 kt. Waves 1 to 2 ft. .MON NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .TUE...E winds 5 to 10 kt. Waves 1 ft. .WED...E winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers. $$ ANZ543-022300- Tangier Sound and the inland waters surrounding Bloodsworth Island- 434 AM EDT Sat Aug 2 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF THE OVERNIGHT...NE winds 15 kt with gusts to 25 kt. Waves 2 ft. .TODAY...NE winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. .TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .SUN...NE winds 10 to 15 kt. Waves 1 ft. .SUN NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .MON...NE winds 10 to 15 kt. Waves 1 ft. .MON NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .TUE...E winds 5 to 10 kt. Waves 1 ft. .WED...E winds 10 kt. Waves 1 ft. A chance of showers. $$