FZUS51 KLWX 012057 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 357 PM EST Sun Nov 1 2026 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. ANZ500-020900- 357 PM EST Sun Nov 1 2026 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... High pressure will remain anchored northeast of the area today before shifting offshore Monday and meandering nearby through Wednesday. Low pressure approaches from the west Wednesday before passing near the waters late week. Southerly channeling could bring an increase to marine winds starting Wednesday. $$ ANZ535-020900- Tidal Potomac from Key Bridge to Indian Head- 357 PM EST Sun Nov 1 2026 .REST OF THIS AFTERNOON...Light winds. Waves 1 ft. .TONIGHT...SE winds around 5 kt. Waves 1 ft or less. .MON...S winds around 5 kt. Waves 1 ft. .MON NIGHT...S winds around 5 kt. Waves 1 ft. .TUE...S winds around 5 kt. Waves 1 ft. .TUE NIGHT...S winds around 5 kt. Waves 1 ft. .WED...SE winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of rain through the day. Rain likely through the night. $$ ANZ536-020900- Tidal Potomac from Indian Head to Cobb Island- 357 PM EST Sun Nov 1 2026 .REST OF THIS AFTERNOON...Light winds. Waves 1 ft. .TONIGHT...SE winds around 5 kt. Waves 1 ft or less. .MON...S winds around 5 kt. Waves 1 ft. .MON NIGHT...S winds around 5 kt. Waves 1 ft. .TUE...S winds around 5 kt. Waves 1 ft. .TUE NIGHT...S winds around 5 kt. Waves 1 ft. .WED...SE winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of rain through the day. Rain likely through the night. $$ ANZ537-020900- Tidal Potomac from Cobb Island to Smith Point- 357 PM EST Sun Nov 1 2026 .REST OF THIS AFTERNOON...E winds 5 kt. Waves flat. .TONIGHT...SE winds around 5 kt. Waves flat. .MON...SE winds around 5 kt. Waves flat. .MON NIGHT...S winds around 5 kt. Waves flat. .TUE...S winds around 5 kt. Waves 1 ft or less. .TUE NIGHT...SE winds 5 kt. Waves less than 1 ft. .WED...SE winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of rain, then rain likely after midnight. $$ ANZ530-020900- Chesapeake Bay north of Pooles Island- 357 PM EST Sun Nov 1 2026 .REST OF THIS AFTERNOON...Light winds. Waves flat. .TONIGHT...S winds around 5 kt. Waves flat. .MON...SW winds around 5 kt. Waves flat. .MON NIGHT...S winds around 5 kt. Waves flat. .TUE...S winds around 5 kt. Waves 1 ft or less. .TUE NIGHT...S winds around 5 kt. Waves flat. .WED...S winds 5 to 10 kt. Waves 1 ft or less. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of rain through the day. Rain likely through the night. $$ ANZ531-020900- Chesapeake Bay from Pooles Island to Sandy Point- 357 PM EST Sun Nov 1 2026 .REST OF THIS AFTERNOON...Light winds. Waves flat. .TONIGHT...S winds around 5 kt. Waves flat. .MON...SW winds around 5 kt. Waves 1 ft or less. .MON NIGHT...S winds around 5 kt. Waves 1 ft or less. .TUE...S winds 5 to 10 kt. Waves 1 ft or less. .TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of rain through the day. Rain likely through the night. $$ ANZ538-020900- Patapsco River including Baltimore Harbor- 357 PM EST Sun Nov 1 2026 .REST OF THIS AFTERNOON...SE winds 5 kt. Waves flat. .TONIGHT...Light winds. Waves flat. .MON...SW winds around 5 kt. Waves flat. .MON NIGHT...S winds around 5 kt. Waves flat. .TUE...S winds around 5 kt. Waves 1 ft or less. .TUE NIGHT...S winds around 5 kt. Waves 1 ft or less. .WED...S winds 5 to 10 kt. Waves 1 ft or less. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of rain through the day. Rain likely through the night. $$ ANZ539-020900- Chester River to Queenstown MD- 357 PM EST Sun Nov 1 2026 .REST OF THIS AFTERNOON...Light winds. Waves flat. .TONIGHT...SE winds around 5 kt. Waves flat. .MON...S winds around 5 kt. Waves 1 ft or less. .MON NIGHT...S winds around 5 kt. Waves flat. .TUE...S winds around 5 kt. Waves 1 ft or less. .TUE NIGHT...S winds 5 kt. Waves less than 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of rain through the day, then rain likely through the night. $$ ANZ532-020900- Chesapeake Bay from Sandy Point to North Beach- 357 PM EST Sun Nov 1 2026 .REST OF THIS AFTERNOON...Light winds. Waves flat. .TONIGHT...SE winds around 5 kt. Waves flat. .MON...S winds 5 to 10 kt. Waves 1 ft or less. .MON NIGHT...S winds 5 kt. Waves less than 1 ft. .TUE...S winds 5 to 10 kt. Waves 1 ft or less. .TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. .WED...S winds 5 to 10 kt. Waves 1 to 2 ft. .THU...S winds 5 to 10 kt. Waves 1 to 2 ft. A chance of rain through the day, then rain likely through the night. $$ ANZ540-020900- Eastern Bay- 357 PM EST Sun Nov 1 2026 .REST OF THIS AFTERNOON...Light winds. Waves flat. .TONIGHT...SE winds around 5 kt. Waves flat. .MON...S winds around 5 kt. Waves flat. .MON NIGHT...S winds 5 kt. Waves flat. .TUE...S winds 5 to 10 kt. Waves 1 ft or less. .TUE NIGHT...S winds 5 kt. Waves less than 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of rain through the day, then rain likely through the night. $$ ANZ533-020900- Chesapeake Bay from North Beach to Drum Point- 357 PM EST Sun Nov 1 2026 .REST OF THIS AFTERNOON...E winds 5 kt. Waves flat. .TONIGHT...SE winds around 5 kt. Waves flat. .MON...S winds around 5 kt. Waves 1 ft or less. .MON NIGHT...S winds 5 kt. Waves less than 1 ft. .TUE...S winds 5 to 10 kt. Waves 1 ft or less. .TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. .WED...SE winds 5 to 10 kt. Waves 1 to 2 ft. .THU...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain through the day, then rain likely through the night. $$ ANZ541-020900- Choptank River to Cambridge MD and the Little Choptank River- 357 PM EST Sun Nov 1 2026 .REST OF THIS AFTERNOON...N winds 5 kt. Waves flat. .TONIGHT...SE winds around 5 kt. Waves flat. .MON...S winds around 5 kt. Waves flat. .MON NIGHT...S winds around 5 kt. Waves flat. .TUE...S winds 5 kt. Waves less than 1 ft. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .WED...SE winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of rain through the day, then rain likely through the night. $$ ANZ542-020900- Patuxent River to Broomes Island MD- 357 PM EST Sun Nov 1 2026 .REST OF THIS AFTERNOON...Light winds. Waves 1 ft. .TONIGHT...SE winds around 5 kt. Waves 1 ft or less. .MON...SE winds around 5 kt. Waves 1 ft. .MON NIGHT...S winds around 5 kt. Waves 1 ft. .TUE...S winds around 5 kt. Waves 1 ft. .TUE NIGHT...SE winds around 5 kt. Waves 1 ft. .WED...SE winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of rain through the day, then rain likely through the night. $$ ANZ534-020900- Chesapeake Bay from Drum Point to Smith Point- 357 PM EST Sun Nov 1 2026 .REST OF THIS AFTERNOON...NE winds 5 kt. Waves flat. .TONIGHT...E winds around 5 kt. Waves 1 ft or less. .MON...SE winds around 5 kt. Waves flat. .MON NIGHT...S winds around 5 kt. Waves flat. .TUE...SE winds 5 to 10 kt. Waves 1 ft or less. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .WED...SE winds 5 to 10kt. Waves 1 to 2 ft. .THU...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain, then rain likely after midnight. $$ ANZ543-020900- Tangier Sound and the inland waters surrounding Bloodsworth Island- 357 PM EST Sun Nov 1 2026 .REST OF THIS AFTERNOON...N winds 5 kt. Waves flat. .TONIGHT...E winds around 5 kt. Waves flat. .MON...SE winds around 5 kt. Waves flat. .MON NIGHT...SE winds around 5 kt. Waves flat. .TUE...SE winds around 5 kt. Waves flat. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .WED...SE winds 5 to 10 kt. Waves 1 ft. .THU...S winds 10 to 15 kt. Waves 1 ft. A chance of rain, then rain likely after midnight. $$