Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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452 FZUS51 KLWX 150545 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 1245 AM EST Sat Nov 15 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. ANZ500-152100- 1245 AM EST Sat Nov 15 2025 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... A warm front will cross the region today, then the attendant cold front will move through Sunday morning. A secondary cold front will track through by Monday. Another wave of low pressure may approach Tuesday into Wednesday. Small Craft Advisories will likely be needed through Monday. Gales are possible mainly across the northern waters on Sunday. $$ ANZ535-152100- Tidal Potomac from Key Bridge to Indian Head- 1245 AM EST Sat Nov 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE TONIGHT... ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY AFTERNOON... .OVERNIGHT...SW winds around 5 kt. Waves 1 ft or less. .SAT...S winds around 5 kt. Waves 1 ft. .SAT NIGHT...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. Scattered sprinkles. .SUN...NW winds 15 to 20 kt with gusts to 35 kt. Waves 2 ft. .SUN NIGHT...NW winds 10 to 15 kt. Gusts up to 25 kt in the evening. Waves 1 ft. .MON...NW winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .MON NIGHT...NW winds 5 to 10 kt. Waves 1 ft. .TUE...S winds around 5 kt. Waves 1 ft. A chance of rain through the night. .WED...NE winds around 5 kt. Waves 1 ft or less. $$ ANZ536-152100- Tidal Potomac from Indian Head to Cobb Island- 1245 AM EST Sat Nov 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY AFTERNOON... .OVERNIGHT...SW winds 5 kt. Waves less than 1 ft. Scattered sprinkles. .SAT...SW winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. Scattered sprinkles. .SUN...NW winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft. .SUN NIGHT...NW winds 10 to 15 kt. Gusts up to 25 kt in the evening. Waves 1 to 2 ft. .MON...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .MON NIGHT...NW winds 5 to 10 kt. Waves 1 ft. .TUE...S winds around 5 kt. Waves 1 ft. A chance of rain. .WED...NE winds around 5 kt. Waves 1 ft. $$ ANZ537-152100- Tidal Potomac from Cobb Island to Smith Point- 1245 AM EST Sat Nov 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY AFTERNOON... .OVERNIGHT...S winds 5 kt...becoming W late. Waves 1 ft. Scattered sprinkles. .SAT...SW winds 5 kt...becoming S late. Waves 1 ft. .SAT NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Scattered sprinkles. .SUN...NW winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft. .SUN NIGHT...NW winds 15 to 20 kt. Gusts up to 30 kt...diminishing to 20 kt after midnight. Waves 2 to 3 ft. .MON...NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .MON NIGHT...NW winds 5 to 10 kt. Waves 1 to 2 ft. .TUE...W winds 5 to 10 kt...becoming SE. Waves 1 ft or less. A chance of rain through the night. .WED...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ530-152100- Chesapeake Bay north of Pooles Island- 1245 AM EST Sat Nov 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE TONIGHT... ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY AFTERNOON... .OVERNIGHT...E winds 5 kt. Waves flat. .SAT...SE winds around 5 kt. Waves 1 ft or less. Scattered sprinkles. .SAT NIGHT...SW winds 10 to 15 kt...becoming W late. Gusts up to 20 kt. Waves 1 ft. Scattered showers. .SUN...NW winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft. .SUN NIGHT...W winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft. .MON...W winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. .MON NIGHT...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .TUE...W winds around 5 kt. Waves 1 ft or less. A chance of rain in the evening. .WED...NE winds around 5 kt. Waves flat. $$ ANZ531-152100- Chesapeake Bay from Pooles Island to Sandy Point- 1245 AM EST Sat Nov 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE TONIGHT... ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY AFTERNOON... .OVERNIGHT...SW winds 5 kt. Waves less than 1 ft. .SAT...E winds 5 kt...becoming S late. Waves 1 ft or less. Scattered sprinkles. .SAT NIGHT...SW winds 10 to 15 kt...becoming W late. Gusts up to 20 kt. Waves 2 ft. Scattered showers. .SUN...NW winds 15 to 20 kt with gusts to 35 kt. Waves 3 ft. .SUN NIGHT...W winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. .MON...W winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. .MON NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .TUE...W winds 5 to 10 kt...becoming NE after midnight. Waves 1 ft or less. A chance of rain in the evening. .WED...NE winds 5 to 10 kt. Waves 1 ft or less. $$ ANZ538-152100- Patapsco River including Baltimore Harbor- 1245 AM EST Sat Nov 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE TONIGHT... ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY AFTERNOON... .OVERNIGHT...W winds 5 kt. Waves flat. .SAT...E winds 5 kt. Waves less than 1 ft. Scattered sprinkles. .SAT NIGHT...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. Scattered showers. .SUN...NW winds 15 to 20 kt with gusts to 35 kt. Waves 2 ft. .SUN NIGHT...W winds 15 to 20 kt. Gusts up to 30 kt... diminishing to 20 kt after midnight. Waves 1 to 2 ft. .MON...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .MON NIGHT...NW winds 5 to 10 kt. Waves 1 ft. .TUE...W winds around 5 kt. Waves 1 ft or less. A chance of rain through the night. .WED...NE winds around 5 kt. Waves flat. $$ ANZ539-152100- Chester River to Queenstown MD- 1245 AM EST Sat Nov 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE TONIGHT... ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY AFTERNOON... .OVERNIGHT...SW winds 5 kt. Waves flat. .SAT...E winds around 5 kt...becoming S late. Waves 1 ft or less. Scattered sprinkles. .SAT NIGHT...SW winds 10 to 15 kt...becoming W late. Gusts up to 20 kt. Waves 2 ft. Scattered showers. .SUN...NW winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft. .SUN NIGHT...W winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft. .MON...W winds 15 kt with gusts to 25 kt. Waves 3 ft. .MON NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .TUE...W winds around 5 kt. Waves 1 ft or less. A chance of rain in the evening. .WED...NE winds 5 kt. Waves less than 1 ft. $$ ANZ532-152100- Chesapeake Bay from Sandy Point to North Beach- 1245 AM EST Sat Nov 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE TONIGHT... ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY AFTERNOON... .OVERNIGHT...SW winds 5 kt. Waves less than 1 ft. .SAT...NE winds 5 kt...becoming S in the afternoon. Waves 1 ft. .SAT NIGHT...SW winds 10 to 15 kt...becoming W late. Gusts up to 20 kt. Waves 2 ft. Scattered showers. .SUN...NW winds 15 to 20 kt with gusts to 35 kt. Waves 3 ft. .SUN NIGHT...NW winds 20 to 25 kt. Gusts up to 30 kt in the evening. Waves 2 to 3 ft. .MON...NW winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. .MON NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .TUE...W winds 5 to 10 kt...becoming E after midnight. Waves 1 ft. A chance of rain. .WED...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ540-152100- Eastern Bay- 1245 AM EST Sat Nov 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE TONIGHT... ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY AFTERNOON... .OVERNIGHT...SW winds 5 kt. Waves flat. .SAT...E winds around 5 kt...becoming S late. Waves 1 ft or less. .SAT NIGHT...SW winds 10 to 15 kt...becoming W late. Gusts up to 20 kt. Waves 2 ft. Scattered showers. .SUN...NW winds 15 to 20 kt with gusts to 30 kt. Waves 2 to 3 ft. .SUN NIGHT...NW winds 15 to 20 kt with gusts to 30 kt. Waves 2 to 3 ft. .MON...NW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. .MON NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .TUE...SW winds 5 kt. Waves less than 1 ft. A chance of rain in the evening. .WED...NE winds 5 kt. Waves less than 1 ft. $$ ANZ533-152100- Chesapeake Bay from North Beach to Drum Point- 1245 AM EST Sat Nov 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY AFTERNOON... .OVERNIGHT...SW winds 5 kt. Waves less than 1 ft. Scattered sprinkles. .SAT...N winds 5 kt...becoming S in the afternoon. Waves 1 ft. .SAT NIGHT...SW winds 10 to 15 kt...becoming W late. Gusts up to 25 kt. Waves 2 ft. Scattered sprinkles. .SUN...NW winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft. .SUN NIGHT...NW winds 20 to 25 kt. Gusts up to 30 kt in the evening. Waves 3 ft. .MON...NW winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. .MON NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .TUE...W winds 5 to 10 kt...becoming S. Waves 1 ft. A chance of rain through the night. .WED...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ541-152100- Choptank River to Cambridge MD and the Little Choptank River- 1245 AM EST Sat Nov 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY AFTERNOON... .OVERNIGHT...SW winds 5 kt. Waves less than 1 ft. Scattered sprinkles. .SAT...N winds 5 kt...becoming S in the afternoon. Waves 1 ft. .SAT NIGHT...SW winds 10 to 15 kt...becoming W late. Gusts up to 25 kt. Waves 2 ft. .SUN...NW winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. .SUN NIGHT...NW winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. .MON...NW winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. .MON NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .TUE...W winds 5 to 10 kt...becoming SE. Waves 1 ft. A chance of rain through the night. .WED...NE winds 5 to 10 kt. Waves 1 ft or less. $$ ANZ542-152100- Patuxent River to Broomes Island MD- 1245 AM EST Sat Nov 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY AFTERNOON... .OVERNIGHT...SW winds 5 kt. Waves less than 1 ft. Scattered sprinkles. .SAT...SW winds 5 kt. Waves less than 1 ft. .SAT NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .SUN...NW winds 15 to 20 kt with gusts to 25 kt. Waves 1 ft. .SUN NIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .MON...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .MON NIGHT...NW winds 5 to 10 kt. Waves 1 ft. .TUE...SW winds around 5 kt. Waves 1 ft. A chance of rain through the night. .WED...NE winds around 5 kt. Waves 1 ft. $$ ANZ534-152100- Chesapeake Bay from Drum Point to Smith Point- 1245 AM EST Sat Nov 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY AFTERNOON... .OVERNIGHT...S winds 10 kt...becoming W late. Waves 1 ft. Scattered sprinkles. .SAT...W winds 5 to 10 kt...becoming S in the afternoon. Waves 1 to 2 ft. .SAT NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. Scattered sprinkles. .SUN...NW winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. .SUN NIGHT...NW winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft. .MON...NW winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. .MON NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft. .TUE...W winds 5 to 10 kt...becoming S. Waves 1 ft. A chance of rain through the night. .WED...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ543-152100- Tangier Sound and the inland waters surrounding Bloodsworth Island- 1245 AM EST Sat Nov 15 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY AFTERNOON... .OVERNIGHT...S winds 10 kt...becoming W late. Waves 1 ft. Scattered sprinkles. .SAT...NW winds 5 to 10 kt...becoming S in the afternoon. Waves 1 ft. .SAT NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. Scattered sprinkles. .SUN...NW winds 20 to 25 kt with gusts to 30 kt. Waves 2 ft. .SUN NIGHT...NW winds 20 to 25 kt with gusts to 30 kt. Waves 2 to 3 ft. .MON...NW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. .MON NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .TUE...W winds 5 to 10 kt...becoming S. Waves 1 ft. A chance of rain through the night. .WED...NE winds 5 to 10 kt. Waves 1 ft. $$