FZUS51 KLWX 071905 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 305 PM EDT Tue Jul 7 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. ANZ500-080800- 305 PM EDT Tue Jul 7 2026 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... A stationary front will meander nearby through this evening before moving south toward the Carolinas by mid-week. This boundary eventually dissipates later in the week. Winds shift to southerly on Thursday. Another frontal system approaches from the west by Friday before crossing the waters on Saturday. $$ ANZ535-080800- Tidal Potomac from Key Bridge to Indian Head- 305 PM EDT Tue Jul 7 2026 .REST OF THIS AFTERNOON...NE winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. .TONIGHT...E winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. Patchy fog. Vsby 1 NM or less. .WED...E winds 5 kt. Waves less than 1 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .WED NIGHT...S winds 5 kt. Waves less than 1 ft. Showers likely. .THU...S winds 5 kt. Waves less than 1 ft. Showers with a chance of tstms. .THU NIGHT...SW winds 5 kt. Waves less than 1 ft. .FRI...W winds around 5 kt. Waves 1 ft. A chance of showers in the afternoon. A chance of tstms through the night. .SAT...N winds around 5 kt. Waves 1 ft. A chance of showers. A chance of tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ536-080800- Tidal Potomac from Indian Head to Cobb Island- 305 PM EDT Tue Jul 7 2026 .REST OF THIS AFTERNOON...NE winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. .TONIGHT...E winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. .WED...E winds 5 kt. Waves less than 1 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .WED NIGHT...SE winds 5 kt. Waves less than 1 ft. A chance of showers. .THU...S winds 5 kt. Waves less than 1 ft. Showers with a chance of tstms. .THU NIGHT...W winds 5 kt. Waves less than 1 ft. .FRI...W winds around 5 kt. Waves 1 ft. A chance of showers and tstms through the night. .SAT...N winds around 5 kt. Waves 1 ft. A chance of showers. A chance of tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ537-080800- Tidal Potomac from Cobb Island to Smith Point- 305 PM EDT Tue Jul 7 2026 .REST OF THIS AFTERNOON...NE winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. .TONIGHT...E winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms. .WED...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. .WED NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .THU...S winds 5 kt. Waves less than 1 ft. Showers with a chance of tstms. .THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI...W winds 5 kt. Waves less than 1 ft. A chance of showers and tstms in the afternoon. .SAT...N winds 5 kt. Waves less than 1 ft. A chance of showers. A chance of tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ530-080800- Chesapeake Bay north of Pooles Island- 305 PM EDT Tue Jul 7 2026 .REST OF THIS AFTERNOON...NE winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. .TONIGHT...NE winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms. .WED...NE winds 5 to 10 kt...becoming S late. Waves 1 ft. .WED NIGHT...S winds 5 kt. Waves less than 1 ft. A chance of showers. .THU...S winds 5 to 10 kt. Waves 1 ft. Showers with a chance of tstms. .THU NIGHT...SW winds around 5 kt. Waves 1 ft. Achance of showers and tstms. .FRI...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. A chance of showers after midnight. .SAT...NE winds around 5 kt. Waves 1 ft. A chance of showers and tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ531-080800- Chesapeake Bay from Pooles Island to Sandy Point- 305 PM EDT Tue Jul 7 2026 .REST OF THIS AFTERNOON...NE winds 5 kt. Waves flat. Scattered showers and tstms. .TONIGHT...E winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms. .WED...E winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers. .THU...S winds 5 to 10 kt. Waves 1 ft. Showers with a chance of tstms. .THU NIGHT...SW winds 5 kt. Waves less than 1 ft. .FRI...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. .SAT...NE winds 5 kt. Waves less than 1 ft. A chance of showers and tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ538-080800- Patapsco River including Baltimore Harbor- 305 PM EDT Tue Jul 7 2026 .REST OF THIS AFTERNOON...E winds 5 kt. Waves flat. Scattered showers and tstms. .TONIGHT...E winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms. Patchy fog. Vsby 1 NM or less. .WED...E winds 5 to 10 kt. Waves 1 ft or less. Patchy fog. Vsby 1 to 3 NM. .WED NIGHT...S winds 5 kt. Waves flat. Showers likely. .THU...S winds 5 to 10 kt. Waves 1 ft or less. Showers with a chance of tstms. .THU NIGHT...SW winds 5 kt. Waves flat. .FRI...W winds 5 kt. Waves less than 1 ft. A chance of showers and tstms through the night. .SAT...NE winds around 5 kt. Waves 1 ft or less. A chance of showers. A chance of tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ539-080800- Chester River to Queenstown MD- 305 PM EDT Tue Jul 7 2026 .REST OF THIS AFTERNOON...NE winds 5 kt. Waves flat. Scattered showers and tstms. .TONIGHT...E winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms. .WED...NE winds 5 to 10 kt...becoming NW late. Waves 1 ft or less. .WED NIGHT...S winds around 5 kt. Waves 1 ft or less. A chance of showers. .THU...S winds 5 to 10 kt. Waves 1 ft. Showers with a chance of tstms. .THU NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .FRI...W winds 5 kt. Waves less than 1 ft. A chance of showers and tstms through the night. .SAT...NE winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ532-080800- Chesapeake Bay from Sandy Point to North Beach- 305 PM EDT Tue Jul 7 2026 .REST OF THIS AFTERNOON...NE winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. .TONIGHT...E winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms. .WED...NE winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers. .THU...S winds 5 to 10 kt. Waves 1 ft. Showers with a chance of tstms. .THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI...W winds 5 kt. Waves less than 1 ft. A chance of showers and tstms through the night. .SAT...N winds 5 to 10 kt...becoming E after midnight. Waves 1 ft. A chance of showers. A chance of tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ540-080800- Eastern Bay- 305 PM EDT Tue Jul 7 2026 .REST OF THIS AFTERNOON...N winds 5 kt. Waves flat. Scattered showers and tstms. .TONIGHT...E winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms. .WED...NE winds 5 to 10 kt...becoming NW late. Waves 1 ft or less. .WED NIGHT...S winds around 5 kt. Waves 1 ft. A chance of showers. .THU...S winds 5 to 10 kt. Waves 1 ft. Showers with a chance of tstms. .THU NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .FRI...W winds 5 kt. Waves less than 1 ft. A chance of showers and tstms through the night. .SAT...N winds 5 kt. Waves less than 1 ft. A chance of showers and tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ533-080800- Chesapeake Bay from North Beach to Drum Point- 305 PM EDT Tue Jul 7 2026 .REST OF THIS AFTERNOON...N winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. .TONIGHT...E winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms. .WED...NE winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers. .THU...S winds 5 to 10 kt. Waves 1 ft. Showers with a chance of tstms. .THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. .SAT...N winds 5 to 10 kt...becoming E after midnight. Waves 1 ft. A chance of showers. A chance of tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ541-080800- Choptank River to Cambridge MD and the Little Choptank River- 305 PM EDT Tue Jul 7 2026 .REST OF THIS AFTERNOON...N winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. .TONIGHT...E winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms. .WED...NE winds 5 to 10 kt...becoming NW late. Waves 1 ft. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers. .THU...S winds 5 to 10 kt. Waves 1 ft. Showers with a chance of tstms. .THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. .SAT...N winds 5 to 10 kt...becoming E after midnight. Waves 1 ft. A chance of showers. A chance of tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ542-080800- Patuxent River to Broomes Island MD- 305 PM EDT Tue Jul 7 2026 .REST OF THIS AFTERNOON...NE winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. .TONIGHT...E winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. .WED...E winds 5 kt. Waves less than 1 ft. .WED NIGHT...SE winds 5 kt. Waves less than 1 ft. A chance of showers. .THU...S winds 5 to 10 kt. Waves 1 ft. Showers with a chance of tstms. .THU NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .FRI...W winds 5 kt. Waves less than 1 ft. A chance of showers and tstms through the night. .SAT...N winds around 5 kt. Waves 1 ft. A chance of showers. A chance of tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ534-080800- Chesapeake Bay from Drum Point to Smith Point- 305 PM EDT Tue Jul 7 2026 .REST OF THIS AFTERNOON...NE winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. .TONIGHT...E winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms. .WED...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. .WED NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. Showers with a chance of tstms. .THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI...W winds 5 to 10 kt. Waves 1 ft. .SAT...N winds 5 to 10 kt...becoming E after midnight. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ543-080800- Tangier Sound and the inland waters surrounding Bloodsworth Island- 305 PM EDT Tue Jul 7 2026 .REST OF THIS AFTERNOON...NE winds 5 kt. Waves flat. Scattered showers and tstms. .TONIGHT...E winds 5 to 10 kt. Waves 1 ft. Scatteredshowers and tstms. .WED...NE winds 5 to 10 kt...becoming S late. Waves 1 ft. .WED NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. Showers with a chance of tstms. .THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI...W winds 5 to 10 kt. Waves 1 ft. .SAT...NW winds 5 to 10 kt...becoming E after midnight. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$