Expires:202411220900;;448235 FZUS51 KLWX 212335 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 635 PM EST Thu Nov 21 2024 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. ANZ535-220900- Tidal Potomac from Key Bridge to Indian Head- 635 PM EST Thu Nov 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .TONIGHT...W winds 10 kt with gusts to 20 kt. Waves 1 ft. Isolated showers this evening. .FRI...W winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. Numerous showers. Vsby 1 to 3 NM. .FRI NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. Scattered showers. .SAT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .SAT NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves 1 ft. .SUN...W winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...W winds around 5 kt. Waves 1 ft or less. .MON...S winds 5 to 10 kt. Waves 1 ft. A chance of showers after midnight. .TUE...NW winds 5 to 10 kt. Waves 1 ft. $$