FZUS51 KLWX 150627 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 227 AM EDT Thu Oct 15 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. ANZ500-152000- 227 AM EDT Thu Oct 15 2026 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... A dry cold front slowly moves through the area today. A stronger cold front moves across the area Friday, with gale conditions possible, especially over the open waters Friday night into Saturday. Small Craft Advisory conditions persist through Sunday morning. $$ ANZ535-152000- Tidal Potomac from Key Bridge to Indian Head- 227 AM EDT Thu Oct 15 2026 .OVERNIGHT...N winds 5 kt. Waves less than 1 ft. .THU...NE winds 5 to 10 kt. Waves 1 ft. Showers. .THU NIGHT...SE winds around 5 kt. Waves 1 ft. A chance of showers. .FRI...SW winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .FRI NIGHT...NW winds 10 to 15 kt. Gusts up to 25 kt. Waves 1 ft. Showers. .SAT...N winds 10 to 15 kt with gusts to 30 kt. Waves 2 ft. .SAT NIGHT...N winds 5 to 10 kt. Gusts up to 25 kt in the evening. Waves 1 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .MON...N winds 5 to 10 kt. Waves 1 ft. $$ ANZ536-152000- Tidal Potomac from Indian Head to Cobb Island- 227 AM EDT Thu Oct 15 2026 .OVERNIGHT...N winds 5 to 10 kt. Waves 1 ft. A slight chance of showers. .THU...NE winds 5 to 10 kt. Waves 1 ft. Showers. .THU NIGHT...SE winds 5 kt. Waves less than 1 ft. A chance of showers. .FRI...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .FRI NIGHT...W winds 10 to 15 kt...becoming NW after midnight. Gusts up to 25 kt. Waves 2 ft. Showers. .SAT...N winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft. .SAT NIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft. .SUN...N winds 10 to 15 kt...becoming NE 5 kt. Waves 1 ft. .MON...N winds around 5 kt. Waves 1 ft. $$ ANZ537-152000- Tidal Potomac from Cobb Island to Smith Point- 227 AM EDT Thu Oct 15 2026 .OVERNIGHT...N winds 10 kt. Waves 1 ft. .THU...NE winds 10 to 15 kt. Gusts up to 20 kt until late afternoon. Waves 2 ft. Showers likely. .THU NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI...SW winds 10 to 15 kt. Waves 1 to 2 ft. .FRI NIGHT...SW winds 10 to 15 kt...becoming NW 15 to 20 kt after midnight. Gusts up to 25 kt. Waves 2 to 3 ft. Showers. .SAT...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft. A chance of showers. .SAT NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft. .SUN...NE winds 20 to 25 kt...diminishing to 10 to 15 kt. Waves 2 to 3 ft...subsiding to 1 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ530-152000- Chesapeake Bay north of Pooles Island- 227 AM EDT Thu Oct 15 2026 .OVERNIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .THU...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .THU NIGHT...SE winds 5 to 10 kt. Waves 1 ft. Showers likely. .FRI...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. A chance of showers. .FRI NIGHT...W winds 10 to 15 kt...becoming NW 15 to 20 kt after midnight. Gusts up to 25 kt. Waves 2 ft. Showers. .SAT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. .SAT NIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft or less. .MON...NE winds 5 to 10 kt. Waves 1 ft or less. $$ ANZ531-152000- Chesapeake Bay from Pooles Island to Sandy Point- 227 AM EDT Thu Oct 15 2026 .OVERNIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .THU...NE winds 10 to 15 kt with gusts to 20 kt... becoming E 5 kt late. Waves 1 to 2 ft. Showers likely. .THU NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft. A chance of showers. .FRI NIGHT...W winds 15 kt...becoming NW after midnight. Gusts up to 30 kt. Waves 3 ft. Showers. .SAT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. .SAT NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. .SUN...NE winds 10 to 15 kt...diminishing to 5 to 10 kt. Waves 1 to 2 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ538-152000- Patapsco River including Baltimore Harbor- 227 AM EDT Thu Oct 15 2026 .OVERNIGHT...N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. .THU...NE winds 5 to 10 kt. Waves 1 ft. Showers likely. .THU NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI...S winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. A chance of showers. .FRI NIGHT...NW winds 10 to 15 kt. Gusts up to 25 kt. Waves 2 ft. Showers likely. .SAT...N winds 15 kt with gusts to 25 kt. Waves 2 ft. .SAT NIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft or less. .MON...NE winds 5 to 10 kt. Waves 1 ft or less. $$ ANZ539-152000- Chester River to Queenstown MD- 227 AM EDT Thu Oct 15 2026 .OVERNIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .THU...NE winds 10 to 15 kt...becoming E 5 kt in the afternoon. Waves 1 to 2 ft. Showers likely. .THU NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance of showers. .FRI NIGHT...W winds 10 to 15 kt...becoming NW 15 to 20 kt after midnight. Gusts up to 25 kt. Waves 3 ft. Showers. .SAT...N winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft. .SAT NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. .SUN...NE winds 10 to 15 kt...diminishing to 5 kt. Waves 1 to 2 ft... subsiding to flat. .MON...NE winds 5 kt. Waves less than 1 ft. $$ ANZ532-152000- Chesapeake Bay from Sandy Point to North Beach- 227 AM EDT Thu Oct 15 2026 .OVERNIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .THU...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Showers likely. .THU NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft. A chance of showers. .FRI NIGHT...W winds 15 kt...becoming NW after midnight. Gusts up to 30 kt. Waves 3 ft. Showers. .SAT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. .SAT NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. .SUN...NE winds 15 to 20 kt...diminishing to 5 to 10 kt. Waves 1 to 2 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ540-152000- Eastern Bay- 227 AM EDT Thu Oct 15 2026 .OVERNIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .THU...NE winds 10 to 15 kt with gusts to 20 kt... becoming E 5 kt late. Waves 1 ft. Showers likely. .THU NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance of showers. .FRI NIGHT...W winds 10 to 15 kt...becoming NW 15 to 20 kt after midnight. Gusts up to 25 kt. Waves 3 ft. Showers. .SAT...N winds 20 kt with gusts to 30 kt. Waves 2 to 3 ft. .SAT NIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft. .SUN...NE winds 10 to 15 kt...diminishing to 5 kt. Waves 1 ft or less. .MON...NE winds 5 to 10 kt. Waves 1 ft or less. $$ ANZ533-152000- Chesapeake Bay from North Beach to Drum Point- 227 AM EDT Thu Oct 15 2026 .OVERNIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. A slight chance of showers. .THU...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Showers. .THU NIGHT...SE winds 5 to 10kt. Waves 1 ft. A chance of showers. .FRI...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts to 20 kt... becoming NW 20 to 25 kt with gusts to 30 kt after midnight. Waves 3 ft... building to 5 ft after midnight. Showers. .SAT...N winds 20 to 25 kt with gusts to 35 kt. Waves 4 ft. A chance of showers. .SAT NIGHT...N winds 25 to 30 kt. Waves 4 ft. .SUN...NE winds 20 to 25 kt...diminishing to 5 to 10 kt. Waves 2 to 3 ft...subsiding to 1 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ541-152000- Choptank River to Cambridge MD and the Little Choptank River- 227 AM EDT Thu Oct 15 2026 .OVERNIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .THU...NE winds 10 to 15 kt with gusts to 20 kt... becoming E 5 kt late. Waves 1 to 2 ft. Showers likely. .THU NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts to 20 kt... becoming NW 15 to 20 kt with gusts to 30 kt after midnight. Waves 3 ft. Showers. .SAT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. A chance of showers. .SAT NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. .SUN...NE winds 15 to 20 kt...diminishing to 5 to 10 kt. Waves 1 to 2 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ542-152000- Patuxent River to Broomes Island MD- 227 AM EDT Thu Oct 15 2026 .OVERNIGHT...N winds 5 to 10 kt. Waves 1 ft. .THU...NE winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves 1 ft. Showers. .THU NIGHT...SE winds 5 kt. Waves less than 1 ft. A chance of showers. .FRI...SW winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...W winds 10 to 15 kt. Gusts up to 25 kt. Waves 1 ft. Showers. .SAT...N winds 15 to 20 kt with gusts to 30 kt. Waves 1 ft. A chance of showers. .SAT NIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 1 ft. .SUN...NE winds 10 to 15 kt...diminishing to 5 kt. Waves 1 ft. .MON...NE winds around 5 kt. Waves 1 ft. $$ ANZ534-152000- Chesapeake Bay from Drum Point to Smith Point- 227 AM EDT Thu Oct 15 2026 .OVERNIGHT...N winds 10 kt. Waves 1 ft. .THU...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Showers. .THU NIGHT...SE winds 10 kt. Waves 1 ft. A chance of showers. .FRI...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts to 20 kt...becoming NW 20 to 25 kt with gusts to 30 kt after midnight. Waves 4 ft. Showers. .SAT...N winds 25 to 30 kt. Waves 5 ft. A chance of showers. .SAT NIGHT...N winds 25 to 30 kt. Waves 5 ft. .SUN...NE winds 20 to 25 kt...diminishing to 10 to 15 kt. Waves 4 ft...subsiding to 1 to 2 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. $$ ANZ543-152000- Tangier Sound and the inland waters surrounding Bloodsworth Island- 227 AM EDT Thu Oct 15 2026 .OVERNIGHT...NE winds 10 kt. Waves 1 ft. A slight chance of showers. .THU...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. Showers. .THU NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .FRI NIGHT...SW winds 15 to 20 kt...becoming NW 20 to 25 kt after midnight. Gusts up to 30 kt. Waves 3 ft. Showers. .SAT...N winds 20 to 25 kt with gusts to 35 kt. Waves 3 ft. A chance of showers. .SAT NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 2 to 3 ft. .SUN...NE winds 15 to 20 kt...diminishing to 5 to 10 kt. Waves 1 to 2 ft. .MON...NE winds 5 to 10 kt. Waves 1 ft. $$