FZUS51 KLWX 012357 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 657 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- 657 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. $$ ANZ535-020900- Tidal Potomac from Key Bridge to Indian Head- 657 PM EST Sun Nov 1 2026 .TONIGHT...SE winds around 5 kt. Waves 1 ft or less. .MON...S winds around 5 kt. Waves 1 ft. .MON NIGHT...S winds around 5 kt. Waves 1 ft. .TUE...S winds around 5 kt. Waves 1 ft. .TUE NIGHT...S winds around 5 kt. Waves 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of rain through the day. Rain likely through the night. .FRI...SW winds 5 kt...becoming NW. Waves 1 ft. A chance of rain. $$ ANZ536-020900- Tidal Potomac from Indian Head to Cobb Island- 657 PM EST Sun Nov 1 2026 .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...S winds around 5 kt. Waves 1 ft. .WED NIGHT...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. .FRI...NW winds 5 kt...becoming 5 to 10 kt after midnight. Waves 1 ft. A chance of rain. $$ ANZ537-020900- Tidal Potomac from Cobb Island to Smith Point- 657 PM EST Sun Nov 1 2026 .TONIGHT...SE winds 5 kt. Waves flat. .MON...SE winds around 5 kt. Waves flat. .MON NIGHT...S winds around 5 kt. Waves flat. .TUE...S winds around 5 kt. Waves 1 ft or less. .TUE NIGHT...SE winds 5 kt. Waves less than 1 ft. .WED...SE winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of rain, then rain likely after midnight. .FRI...S winds 5 to 10 kt...becoming NW. Waves 1 ft. A chance of rain. $$ ANZ530-020900- Chesapeake Bay north of Pooles Island- 657 PM EST Sun Nov 1 2026 .TONIGHT...S winds around 5 kt. Waves flat. .MON...SW winds around 5 kt. Waves 1 ft. .MON NIGHT...S winds around 5 kt. Waves 1 ft or less. .TUE...S winds around 5 kt. Waves 1 ft. .TUE NIGHT...S winds around 5 kt. Waves 1 ft. .WED...S winds around 5 kt. Waves 1 ft. .WED NIGHT...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. .FRI...S winds 5 kt...becoming NW. Waves 1 ft. A chance of rain. $$ ANZ531-020900- Chesapeake Bay from Pooles Island to Sandy Point- 657 PM EST Sun Nov 1 2026 .TONIGHT...S winds around 5 kt. Waves flat. .MON...SW winds around 5 kt. Waves 1 ft or less. .MON NIGHT...S winds around 5 kt. Waves 1 ft or less. .TUE...S winds 5 to 10 kt. Waves 1 ft or less. .TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of rain through the day. Rain likely through the night. .FRI...SW winds 5 to 10 kt...becoming NW. Waves 1 ft. A chance of rain. $$ANZ538-020900- Patapsco River including Baltimore Harbor- 657 PM EST Sun Nov 1 2026 .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. .WED NIGHT...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. .FRI...S winds 5 to 10 kt...becoming NW. Waves 1 ft or less. A chance of rain. $$ ANZ539-020900- Chester River to Queenstown MD- 657 PM EST Sun Nov 1 2026 .TONIGHT...SE winds around 5 kt. Waves flat. .MON...S winds around 5 kt. Waves 1 ft or less. .MON NIGHT...S winds around 5 kt. Waves flat. .TUE...S winds around 5 kt. Waves 1 ft or less. .TUE NIGHT...S winds 5 kt. Waves less than 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of rain through the day, then rain likely through the night. .FRI...S winds 5 kt...becoming NW. Waves 1 ft. A chance of rain. A chance of tstms in the afternoon. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ532-020900- Chesapeake Bay from Sandy Point to North Beach- 657 PM EST Sun Nov 1 2026 .TONIGHT...SE winds 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. .WED NIGHT...SE winds 10 kt. Waves 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. .FRI...S winds 5 to 10 kt...becoming NW 10 to 15 kt. Waves 1 to 2 ft. A chance of rain. A chance of tstms in the afternoon. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ540-020900- Eastern Bay- 657 PM EST Sun Nov 1 2026 .TONIGHT...SE winds 5 kt. Waves flat. .MON...S winds around 5 kt. Waves flat. .MON NIGHT...S winds 5 kt. Waves flat. .TUE...S winds 5 to 10 kt. Waves 1 ft or less. .TUE NIGHT...S winds 5 kt. Waves less than 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of rain through the day, then rain likely through the night. .FRI...S winds 5 to 10 kt...becoming NW. Waves 1 ft. A chance of tstms through the day. A chance of rain. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ533-020900- Chesapeake Bay from North Beach to Drum Point- 657 PM EST Sun Nov 1 2026 .TONIGHT...SE winds 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 ft. .WED NIGHT...SE winds 10 kt. Waves 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. .FRI...S winds 5 to 10 kt...becoming NW 10 to 15 kt. Waves 1 to 2 ft. A chance of rain. A chance of tstms in the afternoon. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ541-020900- Choptank River to Cambridge MD and the Little Choptank River- 657 PM EST Sun Nov 1 2026 .TONIGHT...SE winds 5 kt. Waves flat. .MON...S winds around 5 kt. Waves flat. .MON NIGHT...S winds around 5 kt. Waves flat. .TUE...S winds 5 kt. Waves less than 1 ft. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...SE winds 5 to 10 kt. Waves 1 ft..THU...S winds 5 to 10 kt. Waves 1 ft. A chance of rain through the day, then rain likely through the night. .FRI...S winds 5 to 10 kt...becoming NW 10 to 15 kt. Waves 1 to 2 ft. A chance of tstms through the day. A chance of rain. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ542-020900- Patuxent River to Broomes Island MD- 657 PM EST Sun Nov 1 2026 .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. .WED NIGHT...SE winds 5 kt. Waves less than 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. .FRI...NW winds 5 kt...becoming 5 to 10 kt after midnight. Waves 1 ft. A chance of rain. A chance of tstms in the afternoon. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ534-020900- Chesapeake Bay from Drum Point to Smith Point- 657 PM EST Sun Nov 1 2026 .TONIGHT...E winds 5 kt. Waves less than 1 ft. .MON...SE winds around 5 kt. Waves flat. .MON NIGHT...S winds around 5 kt. Waves flat. .TUE...SE winds 5 to 10 kt. Waves 1 ft or less. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .WED...SE winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...SE winds 10 kt. Waves 2 ft. .THU...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain, then rain likely after midnight. .FRI...SE winds 5 to 10 kt...becoming NW 10 to 15 kt. Waves 1 to 2 ft. A chance of rain. $$ ANZ543-020900- Tangier Sound and the inland waters surrounding Bloodsworth Island- 657 PM EST Sun Nov 1 2026 .TONIGHT...E winds 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. .WED NIGHT...SE winds 10 kt. Waves 1 ft. .THU...S winds 10 to 15 kt. Waves 1 ft. A chance of rain, then rain likely after midnight. .FRI...SW winds 5 to 10 kt...becoming NW 10 to 15 kt. Waves 1 ft. A chance of rain. $$