Expires:202104192000;;776905 FZUS51 KLWX 190543 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 143 AM EDT Mon Apr 19 2021 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. ANZ538-192000- Patapsco River including Baltimore Harbor- 143 AM EDT Mon Apr 19 2021 .Overnight...SW winds 5 kt. Waves flat. .MON...S winds 5 to 10 kt. Waves flat. .MON NIGHT...SW winds 5 kt. Waves flat. .TUE...SW winds 5 to 10 kt. Waves 1 ft or less. .TUE NIGHT...S winds 10 kt. Waves 1 ft. .WED...SW winds 10 to 15 kt with gusts to 30 kt. Waves 1 to 2 ft. Showers with a chance of tstms. .WED NIGHT...NW winds 10 to 15 kt with gusts to 30 kt. Waves 2 ft. A chance of showers. .THU...W winds 10 to 15 kt. Waves 1 to 2 ft. .FRI...W winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$