Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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435 FZUS51 KLWX 201735 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 135 PM 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. ANZ500-210800- 135 PM 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. $$ ANZ535-210800- Tidal Potomac from Key Bridge to Indian Head- 135 PM EDT Fri Sep 20 2024 .THIS AFTERNOON...E winds 5 kt. Waves less than 1 ft. .TONIGHT...SE winds around 5 kt. Waves 1 ft. .SAT...S winds around 5 kt. Waves 1 ft. .SAT NIGHT...SE winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .SUN...E winds 5 kt. Waves less than 1 ft. A chance of showers. .SUN NIGHT...E winds around 5 kt. Waves 1 ft. .MON...SE winds around 5 kt. Waves 1 ft. A chance of showers through the night. .TUE...SE winds 5 kt. Waves less than 1 ft. A chance of showers. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ536-210800- Tidal Potomac from Indian Head to Cobb Island- 135 PM EDT Fri Sep 20 2024 .THIS AFTERNOON...SE 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. A chance of showers. .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. $$ ANZ537-210800- Tidal Potomac from Cobb Island to Smith Point- 135 PM EDT Fri Sep 20 2024 .THIS AFTERNOON...E winds 5 kt. Waves less than 1 ft. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SAT...SE winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SUN...E winds 5 to 10 kt. Waves 2 ft. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Waves 2 ft. .MON...E winds 5 to 10 kt. Waves 1 to 2 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. $$ ANZ530-210800- Chesapeake Bay north of Pooles Island- 135 PM EDT Fri Sep 20 2024 .THIS AFTERNOON...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 flat. .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. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. .TUE...E winds 5 to 10 kt. Waves 1 ft. A chance of showers in the morning. A chance of showers through the night. $$ ANZ531-210800- Chesapeake Bay from Pooles Island to Sandy Point- 135 PM EDT Fri Sep 20 2024 .THIS AFTERNOON...NE winds 5 kt. Waves less than 1 ft. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SAT...SE winds 5 kt. Waves less than 1 ft. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SUN...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ538-210800- Patapsco River including Baltimore Harbor- 135 PM EDT Fri Sep 20 2024 .THIS AFTERNOON...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. A chance of showers through the night. .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. $$ ANZ539-210800- Chester River to Queenstown MD- 135 PM EDT Fri Sep 20 2024 .THIS AFTERNOON...N winds 5 to 10 kt. Waves 1 ft or less. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SAT...SE winds 5 kt. Waves flat. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SUN...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...SE winds 5 to 10 kt. Waves 1 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. $$ ANZ532-210800- Chesapeake Bay from Sandy Point to North Beach- 135 PM EDT Fri Sep 20 2024 .THIS AFTERNOON...NE 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 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. $$ ANZ540-210800- Eastern Bay- 135 PM EDT Fri Sep 20 2024 .THIS AFTERNOON...NE winds 5 kt. Waves less than 1 ft. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SAT...SE winds 5 kt. Waves flat. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SUN...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...SE winds 5 to 10 kt. Waves 1 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. $$ ANZ533-210800- Chesapeake Bay from North Beach to Drum Point- 135 PM EDT Fri Sep 20 2024 .THIS AFTERNOON...NE 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 10 kt. Waves 1 to 2 ft. A chance of showers. .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 through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ541-210800- Choptank River to Cambridge MD and the Little Choptank River- 135 PM EDT Fri Sep 20 2024 .THIS AFTERNOON...N winds 5 kt. Waves less than 1 ft. .TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SAT...SE winds 5 kt. Waves less than 1 ft. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SUN...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 to 10 kt. Waves 1 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. $$ ANZ542-210800- Patuxent River to Broomes Island MD- 135 PM EDT Fri Sep 20 2024 .THIS AFTERNOON...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. A chance of showers. .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...E 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. $$ ANZ534-210800- Chesapeake Bay from Drum Point to Smith Point- 135 PM EDT Fri Sep 20 2024 .THIS AFTERNOON...E winds 5 kt. Waves less than 1 ft. .TONIGHT...E winds 5 to 10 kt. Waves 1 to 2 ft. .SAT...E winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...SE winds 5 to 10 kt. Waves 2 ft. A chance of showers. .SUN...E winds 10 kt. Waves 2 ft. A chance of showers. .SUN NIGHT...E winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .MON...E winds 5 to 10 kt. Waves 1 to 2 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. $$ ANZ543-210800- Tangier Sound and the inland waters surrounding Bloodsworth Island- 135 PM EDT Fri Sep 20 2024 .THIS AFTERNOON...NE winds 5 kt...becoming E late. Waves 1 ft. .TONIGHT...E winds 5 to 10 kt. Waves 1 ft. .SAT...NE winds 5 to 10 kt...becoming W 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. A chance of showers. .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...E winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night. $$