Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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937 FZUS51 KLWX 211134 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 734 AM EDT Sat Sep 21 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. ANZ500-212000- 734 AM EDT Sat Sep 21 2024 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... A frontal system will move into the area this 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 through Sunday night. $$ ANZ535-212000- Tidal Potomac from Key Bridge to Indian Head- 734 AM EDT Sat Sep 21 2024 .TODAY...S winds 5 kt. Waves less than 1 ft. .TONIGHT...SE winds 5 kt. Waves less than 1 ft. Numerous showers and scattered tstms. Patchy fog. Vsby 1 NM or less. .SUN...E winds 5 kt. Waves less than 1 ft. Patchy fog. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 kt. Waves less than 1 ft. .MON...SE winds around 5 kt. Waves 1 ft. .MON NIGHT...SE winds 5 kt. Waves less than 1 ft. A chance of showers. .TUE...SE winds 5 kt. Waves less than 1 ft. A chance of showers. .WED...SE winds 5 kt. Waves less than 1 ft. A chance of showers. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ536-212000- Tidal Potomac from Indian Head to Cobb Island- 734 AM EDT Sat Sep 21 2024 .TODAY...S winds 5 to 10 kt. Waves 1 ft. Patchy fog this morning with vsby 1 to 3 NM. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms. Patchy fog. Vsby 1 NM or less. .SUN...E winds 5 to 10 kt. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 kt. Waves less than 1 ft. .MON...SE winds 5 kt. Waves less than 1 ft. .MON NIGHT...SE winds 5 kt. Waves less than 1 ft. A chance of showers. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers in the morning. A chance of showers through the night. .WED...SE winds 5 kt. Waves less than 1 ft. A chance of showers. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ537-212000- Tidal Potomac from Cobb Island to Smith Point- 734 AM EDT Sat Sep 21 2024 .TODAY...SW winds 5 kt...becoming SE this afternoon. Waves 1 ft or less. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. Scattered showers. Vsby 1 to 3 NM. .SUN...E winds 5 to 10 kt. Waves 2 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 to 10 kt. Waves 2 ft. .MON...E winds 5 to 10 kt. Waves 1 ft. .MON NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers in the morning. A chance of showers after midnight. .WED...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. $$ ANZ530-212000- Chesapeake Bay north of Pooles Island- 734 AM EDT Sat Sep 21 2024 .TODAY...SE winds 5 kt. Waves flat. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. Scattered showers. Vsby 1 NM or less. .SUN...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 to 10 kt. Waves 1 ft. .MON NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .TUE...E winds 5 to 10 kt. Waves 1 ft. A chance of showers in the morning. A chance of showers through the night. .WED...E winds 5 to 10 kt. Waves 1 ft. A chance of showers through the day. Showers likely through the night. $$ ANZ531-212000- Chesapeake Bay from Pooles Island to Sandy Point- 734 AM EDT Sat Sep 21 2024 .TODAY...S winds 5 kt. Waves less than 1 ft. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. Numerous showers. Vsby 1 NM or less. .SUN...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 to 10 kt. Waves 1 ft. .MON NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers in the morning. A chance of showers through the night. .WED...SE winds 10 kt. Waves 1 ft. A chance of showers through the day. Showers likely through the night. $$ ANZ538-212000- Patapsco River including Baltimore Harbor- 734 AM EDT Sat Sep 21 2024 .TODAY...SE winds 5 kt. Waves less than 1 ft. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. Numerous showers and scattered tstms. Vsby 1 NM or less. .SUN...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 kt. Waves less than 1 ft. .MON NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .WED...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers through the day. Showers likely through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ539-212000- Chester River to Queenstown MD- 734 AM EDT Sat Sep 21 2024 .TODAY...S winds 5 kt. Waves flat. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. Numerous showers. Vsby 1 NM or less. .SUN...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 kt. Waves less than 1 ft. .MON NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers in the morning. A chance of showers through the night. .WED...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers through the day. Showers likely through the night. $$ ANZ532-212000- Chesapeake Bay from Sandy Point to North Beach- 734 AM EDT Sat Sep 21 2024 .TODAY...S winds 5 kt. Waves less than 1 ft. .TONIGHT...SE winds 5 to 10 kt. Waves 1 to 2 ft. Numerous showers and scattered tstms. Vsby 1 NM or less. .SUN...E winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 kt. Waves less than 1 ft. .MON NIGHT...SE winds 10 kt. Waves 2 ft. A chance of showers. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers in the morning. A chance of showers through the night. .WED...SE winds 10 kt. Waves 1 ft. A chance of showers. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ540-212000- Eastern Bay- 734 AM EDT Sat Sep 21 2024 .TODAY...S winds 5 kt. Waves flat. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. Numerous showers. Vsby 1 NM or less. .SUN...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 kt. Waves less than 1 ft. .MON NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. .WED...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. $$ ANZ533-212000- Chesapeake Bay from North Beach to Drum Point- 734 AM EDT Sat Sep 21 2024 .TODAY...SE winds 5 to 10 kt. Waves 1 ft or less. .TONIGHT...SE winds 5 to 10 kt. Waves 1 to 2 ft. Numerous showers. Vsby 1 NM or less. .SUN...E winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 kt. Waves less than 1 ft. .MON NIGHT...SE winds 5 to 10 kt. Waves 2 ft. A chance of showers. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers in the morning. A chance of showers through the night. .WED...SE winds 10 kt. Waves 1 ft. A chance of showers. $$ ANZ541-212000- Choptank River to Cambridge MD and the Little Choptank River- 734 AM EDT Sat Sep 21 2024 .TODAY...S winds 5 kt. Waves flat. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. Numerous showers. Vsby 1 NM or less. .SUN...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 kt. Waves less than 1 ft. .MON NIGHT...E winds 5 to 10 kt. Waves 1 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers after midnight. .WED...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. $$ ANZ542-212000- Patuxent River to Broomes Island MD- 734 AM EDT Sat Sep 21 2024 .TODAY...S winds around 5 kt. Waves 1 ft. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. Scattered showers. Vsby 1 to 3 NM. .SUN...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 kt. Waves less than 1 ft. .MON...E winds 5 kt. Waves less than 1 ft. .MON NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers in the morning. A chance of showers through the night. .WED...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. $$ ANZ534-212000- Chesapeake Bay from Drum Point to Smith Point- 734 AM EDT Sat Sep 21 2024 .TODAY...E winds 5 kt...becoming SE late. Waves 1 ft or less. .TONIGHT...SE winds 5 to 10 kt. Waves 2 ft. Scattered showers. Vsby 1 to 3 NM. .SUN...E winds 5 to 10 kt. Waves 2 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .SUN NIGHT...E winds 10 to 15 kt. Waves 2 ft. .MON...E winds 5 to 10 kt. Waves 1 ft. .MON NIGHT...E winds 10 kt. Waves 2 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers after midnight. .WED...SE winds 10 kt. Waves 1 ft. A chance of showers. $$ ANZ543-212000- Tangier Sound and the inland waters surrounding Bloodsworth Island- 734 AM EDT Sat Sep 21 2024 .TODAY...SE winds 5 kt. Waves flat. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. Scattered showers. Vsby 1 to 3 NM. .SUN...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. Vsby 1 to 3 NM. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 to 10 kt. Waves 1 ft. .MON NIGHT...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. .WED...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. $$