FZUS51 KLWX 080628 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 227 AM EDT Wed Jul 8 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. ANZ500-082000- 227 AM EDT Wed Jul 8 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. $$ ANZ535-082000- Tidal Potomac from Key Bridge to Indian Head- 227 AM EDT Wed Jul 8 2026 .OVERNIGHT...NE winds 5 kt. Waves less than 1 ft. Scattered showers with isolated tstms. .WED...E winds 5 kt. Waves less than 1 ft. Scattered showers. .WED NIGHT...S winds around 5 kt. Waves 1 ft. Scattered showers. .THU...S winds around 5 kt. Waves 1 ft. Showers with a chance of tstms. .THU NIGHT...W winds around 5 kt. Waves 1 ft. Showers likely with a chance of tstms. .FRI...W winds around 5 kt. Waves 1 ft. Showers likely with a chance of tstms. .FRI NIGHT...W winds around 5 kt. Waves 1 ft. A chance of showers and tstms. .SAT...N winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms through the night. .SUN...E winds around 5 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ536-082000- Tidal Potomac from Indian Head to Cobb Island- 227 AM EDT Wed Jul 8 2026 .OVERNIGHT...NE winds 5 kt. Waves less than 1 ft. Scattered showers with isolated tstms. .WED...E winds around 5 kt. Waves 1 ft. Scattered showers. .WED NIGHT...S winds around 5 kt. Waves 1 ft. Scattered showers. .THU...S winds around 5 kt. Waves 1 ft. Showers likely with a chance of tstms. .THU NIGHT...W winds around 5 kt. Waves 1 ft. Showers with a chance of tstms. .FRI...W winds around 5 kt. Waves 1 ft. A chance of showers. .FRI NIGHT...W winds around 5 kt. Waves 1 ft. A chance of showers and tstms. .SAT...N winds around 5 kt. Waves 1 ft. A chance of showers. A chance of tstms through the night. .SUN...E winds 5 to 10 kt...becoming SE. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ537-082000- Tidal Potomac from Cobb Island to Smith Point- 227 AM EDT Wed Jul 8 2026 .OVERNIGHT...E winds 10 kt. Waves 1 ft. Scattered showers with isolated tstms. .WED...E winds 5 to 10 kt. Waves 1 ft. Scattered showers. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. Scattered showers. .THU...S winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .THU NIGHT...SW winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .FRI...W winds 5 kt. Waves less than 1 ft. A chance of showers. .FRI NIGHT...W winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .SAT...N winds 5 to 10 kt...becoming E after midnight. Waves 1 ft. A chance of showers and tstms through the night. .SUN...E winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ530-082000- Chesapeake Bay north of Pooles Island- 227 AM EDT Wed Jul 8 2026 .OVERNIGHT...NE winds 5 to 10 kt. Waves 1 ft. .WED...E winds 5 to 10 kt until late afternoon... becoming light. Waves 1 ft or less. .WED NIGHT...S winds around 5 kt. Waves 1 ft or less. .THU...S winds 5 kt. Waves less than 1 ft. Showers with a chance of tstms. .THU NIGHT...SW winds around 5 kt. Waves 1 ft or less. Showers likely with a chance of tstms. .FRI...W winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. .FRI NIGHT...W winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. .SAT...N winds around 5 kt. Waves 1 ft or less. A chance of showers through the night. .SUN...E winds around 5 kt. Waves flat. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ531-082000- Chesapeake Bay from Pooles Island to Sandy Point- 227 AM EDT Wed Jul 8 2026 .OVERNIGHT...NE winds 10 kt. Waves 1 ft. .WED...NE winds 5 to 10 kt...becoming S late. Waves 1 ft. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .THU NIGHT...SW winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .FRI...W winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. .FRI NIGHT...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SAT...NE winds 5 to 10 kt. Waves 1 ft. .SUN...E winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ538-082000- Patapsco River including Baltimore Harbor- 227 AM EDT Wed Jul 8 2026 .OVERNIGHT...NE winds 5 to 10 kt. Waves 1 ft. Isolated showers. .WED...E winds 5 to 10 kt. Waves 1 ft or less. .WED NIGHT...S winds 5 kt. Waves flat. Scattered showers and tstms. .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. Showers with a chance of tstms. .FRI...W winds 5 to 10 kt. Waves 1 ft or less. Showers likely with a chance of tstms. .FRI NIGHT...W winds 5 kt. Waves less than 1 ft. .SAT...NE winds 5 kt. Waves less than 1 ft. .SUN...E winds around 5 kt. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ539-082000- Chester River to Queenstown MD- 227 AM EDT Wed Jul 8 2026 .OVERNIGHT...E winds 10 kt. Waves 1 ft. .WED...NE winds 5 to 10 kt...becoming W late. Waves 1 ft or less. .WED NIGHT...S winds around 5 kt. Waves 1 ft or less. .THU...S winds 5 kt. Waves less than 1 ft. Showers with a chance of tstms. .THU NIGHT...SW winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .FRI...W winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .FRI NIGHT...NW winds around 5 kt. Waves 1 ft. A chance of showers and tstms. .SAT...N winds 5 to 10 kt...becoming E after midnight. Waves 1 ft or less. .SUN...E winds 5 kt. Waves flat. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ532-082000- Chesapeake Bay from Sandy Point to North Beach- 227 AM EDT Wed Jul 8 2026 .OVERNIGHT...E winds 10 kt. Waves 1 ft. Isolated showers. .WED...E winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms. .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. Showers likely with a chance of tstms. .FRI...W winds 5 to 10 kt. Waves 1 ft. Showers likely. .FRI NIGHT...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SAT...N winds 5 to 10 kt...becoming E after midnight. Waves 1 ft. .SUN...E winds 5 to 10 kt...becoming SE after midnight. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ540-082000- Eastern Bay- 227 AM EDT Wed Jul 8 2026 .OVERNIGHT...E winds 10 kt. Waves 1 ft. Isolated showers. .WED...NE winds 5 to 10 kt...becoming SW late. Waves 1 ft or less. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 kt. Waves less than 1 ft. Showers with a chance of tstms. .THU NIGHT...SW winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .FRI...W winds 5 kt. Waves less than 1 ft. A chance of showers. .FRI NIGHT...NW winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .SAT...N winds 5 to 10 kt...becoming E after midnight. Waves 1 ft or less. .SUN...E winds around 5 kt. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ533-082000- Chesapeake Bay from North Beach to Drum Point- 227 AM EDT Wed Jul 8 2026 .OVERNIGHT...E winds 10 kt. Waves 1 ft. Scattered showers with isolated tstms. .WED...E winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms. .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. .FRI NIGHT...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SAT...N winds 5 to 10 kt...becoming E after midnight. Waves 1 ft. A chance of showers and tstms through the night. .SUN...E winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ541-082000- Choptank River to Cambridge MD and the Little Choptank River- 227 AM EDT Wed Jul 8 2026 .OVERNIGHT...E winds 10 kt. Waves 1 ft. Isolated showers. .WED...NE winds 5 to 10 kt...becoming SW late. Waves 1 ft or less. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms. .THU...S winds 5 kt. Waves less than 1 ft. Showers with a chance of tstms. .THU NIGHT...SW winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .FRI...W winds 5 kt. Waves less than 1 ft. A chance of showers. .FRI NIGHT...W winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .SAT...N winds 5 to 10 kt...becoming E after midnight. Waves 1 ft. A chance of showers and tstms through the night. .SUN...E winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ542-082000- Patuxent River to Broomes Island MD- 227 AM EDT Wed Jul 8 2026 .OVERNIGHT...E winds 5 kt. Waves less than 1 ft. Scattered showers with isolated tstms. .WED...E winds 5 kt. Waves less than 1 ft. .WED NIGHT...S winds 5 kt. Waves less than 1 ft. Scattered showers. .THU...S winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .THU NIGHT...SW winds 5 kt. Waves less than 1 ft. Showers with a chance of tstms. .FRI...W winds 5 kt. Waves less than 1 ft. A chance of showers. .FRI NIGHT...W winds around 5 kt. Waves 1 ft. A chance of showers and tstms. .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. .SUN...E winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ534-082000- Chesapeake Bay from Drum Point to Smith Point- 227 AM EDT Wed Jul 8 2026 .OVERNIGHT...E winds 10 kt. Waves 1 ft. Scattered showers with isolated tstms. .WED...E winds 5 to 10 kt. Waves 1 ft. Scattered showers. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI NIGHT...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SAT...N winds 5 to 10 kt...becoming E after midnight. Waves 1 ft. A chance of showers and tstms through the night. .SUN...E winds 5 to 10 kt. Waves 1 to 2 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ543-082000- Tangier Sound and the inland waters surrounding Bloodsworth Island- 227 AM EDT Wed Jul 8 2026 .OVERNIGHT...NE winds 10 kt. Waves 1 ft. Isolated showers and tstms. .WED...E winds 5 to 10 kt...becoming S late. Waves 1 ft. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. Showers likely 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. .FRI NIGHT...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .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. .SUN...E winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$