FZUS51 KLWX 141827 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 227 PM EDT Tue Apr 14 2026 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- 227 PM EDT Tue Apr 14 2026 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... It will remain very warm and dry through Friday as an area of high pressure builds across the Mid-Atlantic. A cold front late this weekend could bring the next chance for widespread showers. Small Craft Advisories may be needed at times each afternoon Wednesday through Thursday. $$ ANZ535-150800- Tidal Potomac from Key Bridge to Indian Head- 227 PM EDT Tue Apr 14 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. .TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. .WED...SW winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft. .THU...SW winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft. .FRI...NW winds 5 to 10 kt. Waves 1 ft or less. .SAT...NW winds around 5 kt...becoming S. Waves 1 ft. A chance of showers after midnight. $$ ANZ536-150800- Tidal Potomac from Indian Head to Cobb Island- 227 PM EDT Tue Apr 14 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds 10 kt with gusts to 20 kt. Waves 1 ft. .TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. .WED...SW winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft. .THU...SW winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft. .FRI...NW winds 5 to 10 kt. Waves 1 ft or less. .SAT...NW winds around 5 kt...becoming S. Waves 1 ft. $$ ANZ537-150800- Tidal Potomac from Cobb Island to Smith Point- 227 PM EDT Tue Apr 14 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...S winds 10 kt with gusts to 20 kt. Waves 1 ft. .TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft. .THU...SW winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft. .FRI...W winds 5 to 10 kt. Waves 1 ft or less. .SAT...N winds around 5 kt...becoming SE 10 to 15 kt in the afternoon and evening, then becoming S after midnight. Waves 1 ft or less...building to 2 ft. $$ ANZ530-150800- Chesapeake Bay north of Pooles Island- 227 PM EDT Tue Apr 14 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds 10 kt with gusts to 20 kt. Waves 1 ft. .TONIGHT...SW winds 5 to 10 kt. Waves 1 ft or less. A chance of showers. .WED...SW winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft or less. .THU...SW winds around 5 kt. Waves 1 ft or less. .THU NIGHT...SW winds around 5 kt. Waves 1 ft or less. .FRI...NW winds around 5 kt. Waves 1 ft or less. A chance of showers through the night. .SAT...SE winds 5 to 10 kt. Waves 1 ft or less. A chance of showers after midnight. $$ ANZ531-150800- Chesapeake Bay from Pooles Island to Sandy Point- 227 PM EDT Tue Apr 14 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...S winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft. .TONIGHT...SW winds 5 to 10 kt. Waves 1 to 2 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft. .THU...SW winds 5 to 10 kt. Waves 1 ft or less. .THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft. .FRI...W winds around 5 kt. Waves 1 ft or less. A chance of showers through the night. .SAT...NE winds around 5 kt...becoming SE 10 to 15 kt. Waves 1 ft or less...building to 1 to 2 ft. A chance of showers after midnight. $$ ANZ538-150800- Patapsco River including Baltimore Harbor- 227 PM EDT Tue Apr 14 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. .TONIGHT...SW winds around 5 kt. Waves 1 ft or less. .WED...SW winds around 5 kt. Waves 1 ft or less. .WED NIGHT...SW winds around 5 kt. Waves 1 ft or less. .THU...SW winds around 5 kt. Waves 1 ft or less. .THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft or less. .FRI...NW winds around 5 kt. Waves 1 ft or less. A chance of showers through the night. .SAT...NE winds around 5 kt...becoming SE. Waves 1 ft or less. A chance of showers after midnight. $$ ANZ539-150800- Chester River to Queenstown MD- 227 PM EDT Tue Apr 14 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...S winds 10 kt with gusts to 20 kt. Waves 1 ft. .TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. .WED...SW winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. .THU...SW winds 5 to 10 kt. Waves 1 ft or less. .THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft. .FRI...W winds around 5 kt. Waves 1 ft or less. A chance of showers through the night. .SAT...E winds around 5 kt...becoming SE. Waves 1 ft or less. A chance of showers after midnight. $$ ANZ532-150800- Chesapeake Bay from Sandy Point to North Beach- 227 PM EDT Tue Apr 14 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...S winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft. .TONIGHT...SW winds 5 to 10 kt. Waves 1 to 2 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...S winds 5 to 10 kt. Waves 1 to 2 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft. .FRI...W winds around 5 kt. Waves 1 ft or less. A chance of showers through the night. .SAT...NE winds around 5 kt...becoming SE 10 to 15 kt. Waves 1 ft or less...building to 2 ft. $$ ANZ540-150800- Eastern Bay- 227 PM EDT Tue Apr 14 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...S winds 10 kt with gusts to 20 kt. Waves 1 ft. .TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. .WED...SW winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. .THU...SW winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft. .FRI...W winds around 5 kt. Waves 1 ft or less. A chance of showers through the night. .SAT...NE winds around 5 kt...becoming S. Waves 1 ft or less. $$ ANZ533-150800- Chesapeake Bay from North Beach to Drum Point- 227 PM EDT Tue Apr 14 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...S winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft. .TONIGHT...SW winds 5 to 10 kt. Waves 1 to 2 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft. .FRI...W winds 5 to 10 kt. Waves 1 ft or less. .SAT...N winds around 5 kt...becoming SE 10 to 15 kt. Waves 1 ft or less...building to 2 ft. $$ ANZ541-150800- Choptank River to Cambridge MD and the Little Choptank River- 227 PM EDT Tue Apr 14 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...S winds 10 kt with gusts to 20 kt. Waves 1 ft. .TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. .WED...SW winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft. .FRI...W winds around 5 kt. Waves 1 ft or less. .SAT...N winds around 5 kt...becoming S 10 to 15 kt. Waves 1 ft or less. $$ ANZ542-150800- Patuxent River to Broomes Island MD- 227 PM EDT Tue Apr 14 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...SW winds 10 kt with gusts to 20 kt. Waves 1 ft. .TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. .WED...SW winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft. .THU...SW winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft. .FRI...W winds around 5 kt. Waves 1 ft or less. .SAT...NE winds around 5 kt...becoming SE. Waves 1 ft. $$ ANZ534-150800- Chesapeake Bay from Drum Point to Smith Point- 227 PM EDT Tue Apr 14 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...S winds 10 kt with gusts to 20 kt. Waves 2 ft. .TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt until early morning. Waves 1 to 2 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...S winds 10 kt. Waves 2 ft. .THU...S winds 5 to 10 kt. Waves 1 to 2 ft. .THU NIGHT...SW winds 10 to 15 kt. Waves 2 ft. .FRI...SW winds 5 to 10 kt. Waves 1 to 2 ft. .SAT...N winds 5 kt...becoming SE 15 to 20 kt. Waves 1 ft or less... building to 2 ft. $$ ANZ543-150800- Tangier Sound and the inland waters surrounding Bloodsworth Island- 227 PM EDT Tue Apr 14 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... .THIS AFTERNOON...S winds 10 kt with gusts to 20 kt. Waves 1 ft. .TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt until early morning. Waves 1 ft. .WED...SW winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...SW winds 10 to 15 kt. Waves 1 ft. .FRI...SW winds 5 to 10 kt. Waves 1 ft or less. .SAT...NW winds 5 kt...becoming S 10 to 15 kt. Waves 1 ft or less... building to 2 ft after midnight. $$