Expires:202101200900;;182783 FZUS51 KLWX 192344 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 644 PM EST Tue Jan 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. ANZ534-200900- Chesapeake Bay from Drum Point to Smith Point- 644 PM EST Tue Jan 19 2021 ...GALE WARNING IN EFFECT FROM 6 AM EST WEDNESDAY THROUGH WEDNESDAY AFTERNOON... ...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH LATE WEDNESDAY NIGHT... .TONIGHT...SW winds 5 kt...becoming W 15 kt with gusts to 20 kt after midnight. Waves 1 to 2 ft. .WED...NW winds 20 to 25 kt with gusts to 35 kt. Waves 5 ft. Scattered flurries. .WED NIGHT...NW winds 15 to 20 kt with gusts to 30 kt...becoming SW 5 to 10 kt with gusts to 20 kt after midnight. Waves 4 ft... subsiding to 2 ft after midnight. .THU...SW winds 10 to 15 kt with gusts to 25 kt. Waves 3 ft. .THU NIGHT...W winds 10 kt with gusts to 25 kt. Waves 2 ft. .FRI...NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .FRI NIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 to 3 ft. .SAT...NW winds 15 kt. Waves 3 ft. .SUN...NW winds 10 to 15 kt. Waves 1 to 2 ft. $$