Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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236 FZUS51 KLWX 242121 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 520 PM EDT Sat May 24 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. ANZ500-250900- 520 PM EDT Sat May 24 2025 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... High pressure will attempt to build in from the northwest through tonight, then a warm front will approach from the southwest Sunday. Another system across the southern United States may impact the area early next week. Small Craft Advisories may be needed for portions of the waters Tuesday night into Wednesday. $$ ANZ535-250900- Tidal Potomac from Key Bridge to Indian Head- 520 PM EDT Sat May 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt early this evening. Waves 1 ft. .SUN...NW winds 5 kt. Waves less than 1 ft. .SUN NIGHT...NW winds around 5 kt. Waves 1 ft. Scattered showers. .MON...N winds around 5 kt. Waves 1 ft. .MON NIGHT...NE winds around 5 kt. Waves 1 ft or less. .TUE...E winds around 5 kt. Waves 1 ft. .TUE NIGHT...SE winds around 5 kt. Waves 1 ft. Showers likely. .WED...SE winds 5 to 10 kt. Waves 1 ft. Showers through the day, then showers likely through the night. .THU...SW winds around 5 kt. Waves 1 ft. A chance of showers. $$ ANZ536-250900- Tidal Potomac from Indian Head to Cobb Island- 520 PM EDT Sat May 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...NW winds 5 to 10 kt. Waves 1 ft. .SUN...NW winds 5 kt. Waves less than 1 ft. .SUN NIGHT...NW winds around 5 kt. Waves 1 ft. Scattered showers. .MON...N winds 5 kt. Waves less than 1 ft. .MON NIGHT...SE winds around 5 kt. Waves 1 ft or less. .TUE...E winds around 5 kt. Waves 1 ft. A chance of showers. .TUE NIGHT...SE winds 5 kt. Waves less than 1 ft. Showers likely. .WED...SE winds 5 to 10 kt. Waves 1 ft. Showers through the day, then showers likely through the night. .THU...SW winds around 5 kt. Waves 1 ft. A chance of showers. $$ ANZ537-250900- Tidal Potomac from Cobb Island to Smith Point- 520 PM EDT Sat May 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...NW winds 10 kt. Waves 1 ft. .SUN...NW winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...NW winds 5 kt. Waves less than 1 ft. Scattered showers. .MON...N winds 5 to 10 kt. Waves 1 ft. .MON NIGHT...SE winds around 5 kt. Waves 1 ft or less. .TUE...SE winds 5 to 10 kt. Waves 1 ft or less. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. Showers likely. .WED...SE winds 5 to 10 kt. Waves 1 to 2 ft. Showers through the day, then showers likely through the night. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of showers. $$ ANZ530-250900- Chesapeake Bay north of Pooles Island- 520 PM EDT Sat May 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...NW winds 10 kt with gusts to 20 kt. Waves 1 ft. .SUN...NW winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...NW winds around 5 kt. Waves 1 ft. .MON...N winds 5 kt. Waves less than 1 ft. .MON NIGHT...N winds around 5 kt. Waves 1 ft or less. .TUE...SE winds around 5 kt. Waves 1 ft or less. .TUE NIGHT...SE winds around 5 kt. Waves 1 ft. A chance of showers. .WED...SE winds 5 to 10 kt. Waves 1 ft. Showers likely. .THU...SW winds 5 kt. Waves less than 1 ft. A chance of showers. $$ ANZ531-250900- Chesapeake Bay from Pooles Island to Sandy Point- 520 PM EDT Sat May 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .SUN...NW winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...NW winds 5 kt. Waves less than 1 ft. .MON...N winds 5 kt. Waves less than 1 ft. .MON NIGHT...NE winds around 5 kt. Waves flat. .TUE...SE winds around 5 kt. Waves 1 ft or less. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. Showers likely. .WED...SE winds 5 to 10 kt. Waves 1 ft. Showers likely. .THU...S winds 5 kt. Waves less than 1 ft. A chance of showers. $$ ANZ538-250900- Patapsco River including Baltimore Harbor- 520 PM EDT Sat May 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...NW winds 5 to 10 kt. Waves 1 ft or less. .SUN...NW winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...NW winds 5 kt. Waves flat. .MON...N winds 5 kt. Waves flat. .MON NIGHT...NE winds around 5 kt. Waves flat. .TUE...E winds around 5 kt. Waves 1 ft or less. .TUE NIGHT...SE winds 5 kt. Waves less than 1 ft. Showers likely. .WED...SE winds 5 to 10 kt. Waves 1 ft. Showers likely. .THU...S winds 5 kt. Waves less than 1 ft. A chance of showers. $$ ANZ539-250900- Chester River to Queenstown MD- 520 PM EDT Sat May 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...NW winds 10 kt. Waves 1 to 2 ft. .SUN...NW winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...W winds 5 kt. Waves less than 1 ft. .MON...N winds 5 kt. Waves less than 1 ft. .MON NIGHT...NE winds around 5 kt. Waves flat. .TUE...SE winds around 5 kt. Waves 1 ft or less. .TUE NIGHT...SE winds 5 kt. Waves less than 1 ft. Showers likely. .WED...SE winds 5 to 10 kt. Waves 1 ft. Showers likely. .THU...S winds 5 kt. Waves less than 1 ft. A chance of showers. $$ ANZ532-250900- Chesapeake Bay from Sandy Point to North Beach- 520 PM EDT Sat May 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...NW winds 10 kt. Waves 1 to 2 ft. .SUN...NW winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...W winds 5 kt. Waves less than 1 ft. Scattered showers. .MON...N winds 5 kt. Waves less than 1 ft. .MON NIGHT...E winds around 5 kt. Waves flat. .TUE...NE winds around 5 kt...becoming S in the afternoon. Waves 1 ft or less. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. Showers likely. .WED...SE winds 5 to 10 kt. Waves 1 ft. Showers through the day, then showers likely through the night. .THU...S winds 5 kt. Waves less than 1 ft. A chance of showers. $$ ANZ540-250900- Eastern Bay- 520 PM EDT Sat May 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...NW winds 10 kt. Waves 1 ft. .SUN...NW winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...W winds 5 kt. Waves less than 1 ft. Scattered showers. .MON...N winds 5 kt. Waves less than 1 ft. .MON NIGHT...E winds around 5 kt. Waves flat. .TUE...SE winds around 5 kt. Waves 1 ft or less. .TUE NIGHT...SE winds 5 kt. Waves less than 1 ft. Showers likely. .WED...SE winds 5 to 10 kt. Waves 1 ft. Showers likely. .THU...S winds 5 kt. Waves less than 1 ft. A chance of showers. $$ ANZ533-250900- Chesapeake Bay from North Beach to Drum Point- 520 PM EDT Sat May 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...NW winds 10 kt. Waves 1 to 2 ft. .SUN...NW winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...W winds 5 kt. Waves less than 1 ft. Scattered showers. .MON...N winds 5 to 10 kt. Waves 1 ft. .MON NIGHT...SE winds around 5 kt. Waves 1 ft or less. .TUE...N winds around 5 kt...becoming SE in the afternoon. Waves 1 ft or less. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. Showers likely. .WED...SE winds 5 to 10 kt. Waves 1 to 2 ft. Showers through the day, then showers likely through the night. .THU...S winds 5 to 10 kt...becoming W after midnight. Waves 1 ft. A chance of showers. $$ ANZ541-250900- Choptank River to Cambridge MD and the Little Choptank River- 520 PM EDT Sat May 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...NW winds 10 kt. Waves 1 to 2 ft. .SUN...NW winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...W winds 5 kt. Waves less than 1 ft. Scattered showers. .MON...N winds 5 kt. Waves less than 1 ft. .MON NIGHT...E winds around 5 kt. Waves 1 ft or less. .TUE...S winds around 5 kt. Waves 1 ft or less. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. Showers likely. .WED...SE winds 5 to 10 kt. Waves 1 ft. Showers through the day, then showers likely through the night. .THU...S winds 5 to 10 kt...becoming W after midnight. Waves 1 ft. A chance of showers. $$ ANZ542-250900- Patuxent River to Broomes Island MD- 520 PM EDT Sat May 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...NW winds 5 to 10 kt. Waves 1 ft. .SUN...NW winds 5 kt. Waves less than 1 ft. .SUN NIGHT...W winds around 5 kt. Waves 1 ft. Scattered showers. .MON...N winds 5 kt. Waves less than 1 ft. .MON NIGHT...SE winds around 5 kt. Waves 1 ft or less. .TUE...NE winds around 5 kt...becoming SE in the afternoon. Waves 1 ft. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. Showers likely. .WED...SE winds 5 to 10 kt. Waves 1 ft. Showers through the day, then showers likely through the night. .THU...S winds 5 kt. Waves less than 1 ft. A chance of showers. $$ ANZ534-250900- Chesapeake Bay from Drum Point to Smith Point- 520 PM EDT Sat May 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...NW winds 10 kt. Waves 1 to 2 ft. .SUN...NW winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...W winds 5 to 10 kt. Waves 1 ft. Scattered showers. .MON...N winds 5 to 10 kt. Waves 1 ft. .MON NIGHT...SE winds 5 kt. Waves less than 1 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft. .TUE NIGHT...SE winds 10 kt. Waves 1 ft. Showers likely. .WED...SE winds 10 to 15 kt. Waves 2 ft. Showers through the day, then showers likely through the night. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of showers. $$ ANZ543-250900- Tangier Sound and the inland waters surrounding Bloodsworth Island- 520 PM EDT Sat May 24 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING... .TONIGHT...NW winds 10 kt. Waves 1 ft. .SUN...NW winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...W winds 5 kt. Waves less than 1 ft. Scattered showers. .MON...N winds 5 to 10 kt. Waves 1 ft. .MON NIGHT...SE winds 5 kt. Waves less than 1 ft. .TUE...SE winds 5 to 10 kt. Waves 1 ft or less. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. Showers likely. .WED...SE winds 10 to 15 kt. Waves 1 ft. Showers through the day, then showers likely through the night. .THU...S winds 5 to 10 kt. Waves 1 ft. Showers likely, mainly in the morning. $$