Expires:202101200900;;182772 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. ANZ536-200900- Tidal Potomac from Indian Head to Cobb Island- 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 WEDNESDAY EVENING... .TONIGHT...W winds 5 to 10 kt. Waves 1 ft. Scattered flurries after midnight. .WED...NW winds 15 to 20 kt. Gusts up to 25 kt... increasing to 35 kt in the late morning and afternoon. Waves 3 ft. Scattered flurries. .WED NIGHT...NW winds 5 to 10 kt with gusts to 20 kt...becoming S after midnight. Waves 1 ft. .THU...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. .THU NIGHT...W winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. .FRI...NW winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...NW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. .SAT...NW winds 5 to 10 kt. Waves 1 ft. .SUN...NW winds around 5 kt. Waves 1 ft. $$