Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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000 FZUS51 KLWX 200845 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 445 AM EDT Fri Sep 20 2024 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. ANZ500-202300- 445 AM EDT Fri Sep 20 2024 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... Low pressure will continue to drift off the Mid-Atlantic coast through tonight with high pressure building north of the region. A frontal system will move into the area Saturday afternoon before stalling through Sunday. A strong front and area of low pressure over the Great Lakes and Upper Midwest will approach the area during the early or middle part of next week. Small Craft Advisories may be needed for portions of the waters late Saturday through Sunday night. $$ ANZ535-202300- Tidal Potomac from Key Bridge to Indian Head- 445 AM EDT Fri Sep 20 2024 .REST OF THE OVERNIGHT...N winds 5 kt. Waves less than 1 ft. .TODAY...E winds around 5 kt. Waves 1 ft. .TONIGHT...SE winds around 5 kt. Waves 1 ft. .SAT...S winds around 5 kt. Waves 1 ft. .SAT NIGHT...SE winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .SUN...E winds 5 kt. Waves less than 1 ft. .SUN NIGHT...E winds around 5 kt. Waves 1 ft. .MON...SE winds around 5 kt. Waves 1 ft. .TUE...SE winds 5 kt. Waves less than 1 ft. A chance of showers. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ536-202300- Tidal Potomac from Indian Head to Cobb Island- 445 AM EDT Fri Sep 20 2024 .REST OF THE OVERNIGHT...NW winds 5 kt. Waves less than 1 ft. Patchy fog. Vsby 1 to 3 NM. .TODAY...E winds 5 kt. Waves less than 1 ft. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SAT...S winds around 5 kt. Waves 1 ft. .SAT NIGHT...SE winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .SUN...E winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...SE winds 5 kt. Waves less than 1 ft. .TUE...SE winds 5 kt. Waves less than 1 ft. A chance of showers through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ537-202300- Tidal Potomac from Cobb Island to Smith Point- 445 AM EDT Fri Sep 20 2024 .REST OF THE OVERNIGHT...NW winds 5 kt. Waves flat. .TODAY...E winds 5 kt. Waves less than 1 ft. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SAT...SE winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SUN...E winds 5 to 10 kt. Waves 2 ft. .SUN NIGHT...E winds 5 to 10 kt. Waves 2 ft. .MON...E winds 5 to 10 kt. Waves 1 to 2 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers after midnight. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ530-202300- Chesapeake Bay north of Pooles Island- 445 AM EDT Fri Sep 20 2024 .REST OF THE OVERNIGHT...NE winds 5 kt. Waves less than 1 ft. .TODAY...NE winds 5 kt. Waves less than 1 ft. .TONIGHT...SE winds 5 kt. Waves less than 1 ft. .SAT...SE winds 5 kt. Waves less than 1 ft. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SUN...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...SE winds 5 to 10 kt. Waves 1 ft. .TUE...E winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ531-202300- Chesapeake Bay from Pooles Island to Sandy Point- 445 AM EDT Fri Sep 20 2024 .REST OF THE OVERNIGHT...NE winds 5 kt. Waves less than 1 ft. .TODAY...NE winds 5 to 10 kt. Waves 1 ft. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SAT...SE winds 5 kt. Waves less than 1 ft. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SUN...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...SE winds 5 to 10 kt. Waves 1 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ538-202300- Patapsco River including Baltimore Harbor- 445 AM EDT Fri Sep 20 2024 .REST OF THE OVERNIGHT...N winds 5 kt. Waves flat. .TODAY...E winds 5 kt. Waves less than 1 ft. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SAT...SE winds 5 kt. Waves less than 1 ft. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. .SUN...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SUN NIGHT...E winds 5 kt. Waves less than 1 ft. .MON...SE winds 5 to 10 kt. Waves 1 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ539-202300- Chester River to Queenstown MD- 445 AM EDT Fri Sep 20 2024 .REST OF THE OVERNIGHT...NE winds 5 kt. Waves flat. .TODAY...NE winds 5 to 10 kt. Waves 1 ft. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SAT...SE winds 5 kt. Waves flat. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SUN...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...SE winds 5 to 10 kt. Waves 1 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ532-202300- Chesapeake Bay from Sandy Point to North Beach- 445 AM EDT Fri Sep 20 2024 .REST OF THE OVERNIGHT...NE winds 5 kt. Waves flat. .TODAY...NE winds 5 to 10 kt. Waves 1 ft. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SAT...SE winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SUN...E winds 10 kt. Waves 1 to 2 ft. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...SE winds 5 to 10 kt. Waves 1 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ540-202300- Eastern Bay- 445 AM EDT Fri Sep 20 2024 .REST OF THE OVERNIGHT...NE winds 5 kt. Waves flat. .TODAY...NE winds 5 to 10 kt. Waves 1 ft. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SAT...SE winds 5 kt. Waves flat. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SUN...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...SE winds 5 to 10 kt. Waves 1 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ533-202300- Chesapeake Bay from North Beach to Drum Point- 445 AM EDT Fri Sep 20 2024 .REST OF THE OVERNIGHT...N winds 5 kt. Waves flat. .TODAY...NE winds 5 to 10 kt. Waves 1 ft. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SAT...SE winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SUN...E winds 10 kt. Waves 1 to 2 ft. .SUN NIGHT...E winds 5 to 10 kt. Waves 2 ft. .MON...SE winds 5 to 10 kt. Waves 1 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers after midnight. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ541-202300- Choptank River to Cambridge MD and the Little Choptank River- 445 AM EDT Fri Sep 20 2024 .REST OF THE OVERNIGHT...NE winds 5 kt. Waves flat. .TODAY...NE winds 5 to 10 kt. Waves 1 ft. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SAT...SE winds 5 kt. Waves less than 1 ft. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SUN...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...SE winds 5 to 10 kt. Waves 1 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers after midnight. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ542-202300- Patuxent River to Broomes Island MD- 445 AM EDT Fri Sep 20 2024 .REST OF THE OVERNIGHT...N winds 5 kt. Waves less than 1 ft. .TODAY...NE winds 5 kt. Waves less than 1 ft. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SAT...SE winds 5 kt. Waves less than 1 ft. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SUN...E winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 to 10 kt. Waves 1 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers after midnight. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ534-202300- Chesapeake Bay from Drum Point to Smith Point- 445 AM EDT Fri Sep 20 2024 .REST OF THE OVERNIGHT...NW winds 5 kt. Waves flat. .TODAY...E winds 5 to 10 kt. Waves 1 ft. .TONIGHT...E winds 5 to 10 kt. Waves 1 to 2 ft. .SAT...E winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...SE winds 5 to 10 kt. Waves 2 ft. A chance of showers and tstms. .SUN...E winds 10 kt. Waves 2 ft. .SUN NIGHT...E winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .MON...E winds 5 to 10 kt. Waves 1 to 2 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers after midnight. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ543-202300- Tangier Sound and the inland waters surrounding Bloodsworth Island- 445 AM EDT Fri Sep 20 2024 .REST OF THE OVERNIGHT...N winds 5 kt. Waves flat. .TODAY...NE winds 5 to 10 kt. Waves 1 ft. .TONIGHT...E winds 5 to 10 kt. Waves 1 ft. .SAT...NE winds 5 to 10 kt...becoming SW in the afternoon. Waves 1 ft. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SUN...E winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...E winds 10 kt with gusts to 20 kt. Waves 1 ft. .MON...E winds 5 to 10 kt. Waves 1 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers after midnight. $$