


Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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102 FZUS51 KLWX 141739 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 139 PM EDT Mon Jul 14 2025 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. ANZ500-150800- 139 PM EDT Mon Jul 14 2025 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... High pressure will remain in place offshore through the week. A weak cold front will approach the waters from the west today before moving through late Tuesday. This system stalls nearby before returning northward as a warm front on Wednesday. Small Craft Advisories may be needed Wednesday evening into Thursday, particularly across the southern waters. $$ ANZ535-150800- Tidal Potomac from Key Bridge to Indian Head- 139 PM EDT Mon Jul 14 2025 .THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft. Numerous showers and tstms. Vsby 1 NM or less. .TONIGHT...SW winds around 5 kt. Waves 1 ft or less. Showers and tstms. Patchy fog. Vsby 1 NM or less. .TUE...E winds around 5 kt. Waves 1 ft or less. Showers likely with a chance of tstms. Patchy fog. Vsby 1 NM or less. .TUE NIGHT...S winds around 5 kt. Waves 1 ft. Showers likely with a chance of tstms. .WED...S winds around 5 kt. Waves 1 ft. Showers likely with a chance of tstms. .WED NIGHT...SW winds 5 kt. Waves less than 1 ft. .THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. .FRI...W winds around 5 kt. Waves 1 ft. A chance of showers and tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ536-150800- Tidal Potomac from Indian Head to Cobb Island- 139 PM EDT Mon Jul 14 2025 .THIS AFTERNOON...SE winds 5 kt. Waves less than 1 ft. Numerous showers and tstms. Vsby 1 NM or less. .TONIGHT...SW winds around 5 kt. Waves 1 ft or less. Numerous showers and scattered tstms. Patchy fog. Vsby 1 NM or less. .TUE...SW winds around 5 kt. Waves 1 ft or less. Showers likely with a chance of tstms. Patchy fog. Vsby 1 NM or less. .TUE NIGHT...S winds around 5 kt. Waves 1 ft. .WED...SW winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. .WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft. .THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. .FRI...W winds around 5 kt. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ537-150800- Tidal Potomac from Cobb Island to Smith Point- 139 PM EDT Mon Jul 14 2025 .THIS AFTERNOON...SE winds 10 kt. Waves 1 ft. Scattered showers and tstms. Vsby 1 NM or less. .TONIGHT...S winds 5 kt. Waves less than 1 ft. Numerous showers with a chance of tstms. Patchy fog. Vsby 1 NM or less. .TUE...S winds around 5 kt. Waves 1 ft or less. Showers and tstms likely. Patchy fog. Vsby 1 NM or less. .TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely. .WED...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft. .THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. .FRI...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ530-150800- Chesapeake Bay north of Pooles Island- 139 PM EDT Mon Jul 14 2025 .THIS AFTERNOON...S winds 5 kt. Waves flat. Numerous showers and tstms. Vsby 1 NM or less. .TONIGHT...NW winds around 5 kt. Waves flat. Showers and scattered tstms. Patchy fog. Vsby 1 NM or less. .TUE...E winds around 5 kt. Waves flat. Showers likely with a chance of tstms. Patchy fog. Vsby 1 NM or less. .TUE NIGHT...S winds 5 kt. Waves flat. A chance of showers and tstms. .WED...S winds 5 to 10 kt. Waves 1 ft or less. Showers likely with a chance of tstms. .WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. .FRI...NW 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. $$ ANZ531-150800- Chesapeake Bay from Pooles Island to Sandy Point- 139 PM EDT Mon Jul 14 2025 .THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft. Numerous showers and tstms. Vsby 1 NM or less. .TONIGHT...SW winds around 5 kt. Waves 1 ft or less. Showers and tstms. Patchy fog. Vsby 1 NM or less. .TUE...E winds around 5 kt. Waves 1 ft or less. Showers likely with a chance of tstms. Patchy fog. Vsby 1 NM or less. .TUE NIGHT...S winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .WED...S winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. .WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. .FRI...W winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ538-150800- Patapsco River including Baltimore Harbor- 139 PM EDT Mon Jul 14 2025 .THIS AFTERNOON...SE winds 5 kt. Waves less than 1 ft. Numerous showers and tstms. Vsby 1 NM or less. .TONIGHT...SW winds around 5 kt. Waves flat. Showers and tstms. Patchy fog. Vsby 1 NM or less. .TUE...E winds around 5 kt. Waves flat. Showers likely with a chance of tstms. Patchy fog. Vsby 1 to 3 NM. .TUE NIGHT...S winds around 5 kt. Waves flat. A chance of showers and tstms. .WED...S winds 5 to 10 kt. Waves 1 ft or less. Showers likely with a chance of tstms. .WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft or less. A chance of showers and tstms. .THU...SW winds 5 to 10 kt. Waves 1 ft or less. A chance of showers and tstms through the night. .FRI...W winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ539-150800- Chester River to Queenstown MD- 139 PM EDT Mon Jul 14 2025 .THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. Vsby 1 NM or less. .TONIGHT...S winds around 5 kt. Waves 1 ft or less. Numerous showers and scattered tstms. Patchy fog. Vsby 1 NM or less. .TUE...SW winds around 5 kt. Waves flat. Showers likely with a chance of tstms. Vsby 1 NM or less. .TUE NIGHT...S winds 5 kt. Waves flat. A chance of showers and tstms. .WED...S winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. .FRI...W winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ532-150800- Chesapeake Bay from Sandy Point to North Beach- 139 PM EDT Mon Jul 14 2025 .THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. Vsby 1 NM or less. .TONIGHT...S winds 5 kt. Waves less than 1 ft. Numerous showers and scattered tstms. Patchy fog. Vsby 1 NM or less. .TUE...SW winds around 5 kt. Waves 1 ft or less. Showers likely with a chance of tstms. Vsby 1 to 3 NM. .TUE NIGHT...S winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .WED...S winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. .WED NIGHT...SW winds 10 kt. Waves 1 ft. A chance of showers and tstms. .THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. .FRI...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ540-150800- Eastern Bay- 139 PM EDT Mon Jul 14 2025 .THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. Vsby 1 NM or less. .TONIGHT...S winds around 5 kt. Waves 1 ft or less. Numerous showers and scattered tstms. Patchy fog. Vsby 1 NM or less. .TUE...SW winds around 5 kt. Waves flat. Showers likely with a chance of tstms. Vsby 1 to 3 NM. .TUE NIGHT...S winds 5 kt. Waves flat. Showers likely with a chance of tstms. .WED...S winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. .WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. .FRI...W winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ533-150800- Chesapeake Bay from North Beach to Drum Point- 139 PM EDT Mon Jul 14 2025 .THIS AFTERNOON...S winds 10 kt. Waves 1 ft. Scattered showers and tstms. Vsby 1 NM or less. .TONIGHT...S winds 5 to 10 kt. Waves 1 ft. Numerous showers and tstms. Patchy fog. Vsby 1 NM or less. .TUE...S winds around 5 kt. Waves 1 ft. Showers likely with a chance of tstms. Vsby 1 NM or less. .TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .WED...S winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. .WED NIGHT...SW winds 10 kt. Waves 1 ft. .THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. .FRI...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ541-150800- Choptank River to Cambridge MD and the Little Choptank River- 139 PM EDT Mon Jul 14 2025 .THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. Vsby 1 NM or less. .TONIGHT...S winds 5 kt. Waves less than 1 ft. Numerous showers and tstms. Patchy fog. Vsby 1 NM or less. .TUE...SW winds around 5 kt. Waves 1 ft or less. Showers likely with a chance of tstms. Vsby 1 NM or less. .TUE NIGHT...S winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .WED...SW winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. .THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. .FRI...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ542-150800- Patuxent River to Broomes Island MD- 139 PM EDT Mon Jul 14 2025 .THIS AFTERNOON...SE winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. .TONIGHT...S winds around 5 kt. Waves 1 ft. Numerous showers and tstms. Patchy fog. Vsby 1 NM or less. .TUE...S winds around 5 kt. Waves 1 ft. Showers likely with a chance of tstms. Vsby 1 NM or less. .TUE NIGHT...S winds 5 kt. Waves less than 1 ft. Showers and tstms likely. .WED...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft. .THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night. .FRI...W winds around 5 kt. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ534-150800- Chesapeake Bay from Drum Point to Smith Point- 139 PM EDT Mon Jul 14 2025 .THIS AFTERNOON...S winds 10 kt. Waves 1 ft. Scattered showers and tstms. Vsby 1 NM or less. .TONIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. Patchy fog. Vsby 1 NM or less. .TUE...S winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely. Vsby 1 NM or less. .TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely. .WED...SW winds 10 kt. Waves 1 to 2 ft. A chance of showers and tstms. .WED NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .THU...SW winds 10 to 15 kt. Waves 2 ft. .FRI...W winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ543-150800- Tangier Sound and the inland waters surrounding Bloodsworth Island- 139 PM EDT Mon Jul 14 2025 .THIS AFTERNOON...S winds 10 kt. Waves 1 ft. Scattered showers and tstms. Vsby 1 NM or less. .TONIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. Patchy fog. Vsby 1 NM or less. .TUE...SW winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely. Vsby 1 NM or less. .TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .WED...SW winds 10 to 15 kt. Waves 1 ft. A chance of showers and tstms. .WED NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .THU...SW winds 10 to 15 kt. Waves 1 to 2 ft. .FRI...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$