####018012727#### FZUS51 KLWX 150534 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 134 AM EDT Thu May 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. ANZ500-152000- 134 AM EDT Thu May 15 2025 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... Low pressure will slowly pull away from the area toward southern New England through tonight before dissipating. The next frontal system will approach from the Midwest Friday, then pull offshore Saturday. High pressure will follow Sunday and Monday. Small Craft Advisories may be needed at times this weekend. $$ ANZ535-152000- Tidal Potomac from Key Bridge to Indian Head- 134 AM EDT Thu May 15 2025 .OVERNIGHT...SE winds 5 kt. Waves less than 1 ft. Numerous showers with isolated tstms. Patchy fog. Vsby 1 NM or less. .THU...SW winds 5 kt. Waves less than 1 ft. Scattered showers. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...S winds around 5 kt. Waves 1 ft or less. A chance of showers. Patchy fog. Vsby 1 NM or less. .FRI...SW winds around 5 kt. Waves 1 ft. A chance of showers and tstms. Patchy fog. .FRI NIGHT...SW winds around 5 kt. Waves 1 ft. A chance of showers and tstms. .SAT...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. A chance of showers. .SAT NIGHT...W winds 5 to 10 kt. Waves 1 ft. .SUN...NW winds 5 to 10 kt. Waves 1 ft. .MON...NW winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ536-152000- Tidal Potomac from Indian Head to Cobb Island- 134 AM EDT Thu May 15 2025 .OVERNIGHT...S winds 5 kt. Waves less than 1 ft. Scattered showers with isolated tstms. Patchy fog. Vsby 1 NM or less. .THU...S winds around 5 kt. Waves 1 ft. Scattered showers. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...S winds around 5 kt. Waves 1 ft. A chance of showers and tstms. Vsby 1 NM or less. .FRI...SW winds around 5 kt. Waves 1 ft. A chance of showers and tstms. Patchy fog. .FRI NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .SAT...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. A chance of showers. .SAT NIGHT...W winds 5 to 10 kt. Waves 1 ft. .SUN...NW winds 5 to 10 kt. Waves 1 ft. .MON...NW winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ537-152000- Tidal Potomac from Cobb Island to Smith Point- 134 AM EDT Thu May 15 2025 .OVERNIGHT...S winds 5 kt. Waves flat. Scattered showers with isolated tstms. Vsby 1 to 3 NM. .THU...S winds around 5 kt. Waves flat. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...S winds around 5 kt. Waves flat. A chance of showers and tstms. Vsby 1 to 3 NM. .FRI...SW winds 5 to 10 kt. Waves 1 ft or less. A chance of showers. Patchy fog. .FRI NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SAT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. A chance of showers. .SAT NIGHT...W winds 5 to 10 kt. Waves 1 ft. .SUN...NW winds 5 to 10 kt. Waves 1 to 2 ft. .MON...NW winds 5 to 10 kt. Waves 1 to 2 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ530-152000- Chesapeake Bay north of Pooles Island- 134 AM EDT Thu May 15 2025 .OVERNIGHT...E winds 5 kt. Waves less than 1 ft. Scattered showers with isolated tstms. Patchy fog. Vsby 1 to 3 NM. .THU...S winds 5 kt. Waves flat. Numerous showers. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...S winds around 5 kt. Waves flat. A chance of showers. Vsby 1 to 3 NM. .FRI...SW winds around 5 kt. Waves 1 ft or less. Showers likely with a chance of tstms. Patchy fog. .FRI NIGHT...SW winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. .SAT...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. A chance of showers. .SAT NIGHT...W winds 5 to 10 kt. Waves 1 ft. .SUN...NW winds 10 to 15 kt. Waves 1 ft. .MON...NW winds 10 to 15 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ531-152000- Chesapeake Bay from Pooles Island to Sandy Point- 134 AM EDT Thu May 15 2025 .OVERNIGHT...E winds 5 kt. Waves flat. Scattered showers with isolated tstms. Patchy fog. .THU...S winds 5 kt. Waves flat. Numerous showers. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...S winds around 5 kt. Waves flat. A chance of showers. .FRI...S winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. .FRI NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .SAT...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 to 2 ft. A chance of showers. .SAT NIGHT...W winds 10 kt. Waves 1 ft. .SUN...NW winds 10 to 15 kt. Waves 1 to 2 ft. .MON...NW winds 10 to 15 kt. Waves 1 to 2 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ538-152000- Patapsco River including Baltimore Harbor- 134 AM EDT Thu May 15 2025 .OVERNIGHT...E winds 5 kt. Waves flat. Numerous showers with isolated tstms. Patchy fog. .THU...SE winds 5 kt. Waves flat. Numerous showers. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...SE winds around 5 kt. Waves flat. A chance of showers. Vsby 1 to 3 NM. .FRI...S winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. Patchy fog. .FRI NIGHT...SW winds around 5 kt. Waves flat. A chance of showers and tstms. .SAT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SAT NIGHT...W winds 5 to 10 kt. Waves 1 ft. .SUN...NW winds 10 to 15 kt. Waves 1 ft. .MON...NW winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ539-152000- Chester River to Queenstown MD- 134 AM EDT Thu May 15 2025 .OVERNIGHT...E winds 5 kt. Waves flat. Scattered showers with isolated tstms. Patchy fog. Vsby 1 NM or less. .THU...S winds 5 kt. Waves flat. Numerous showers. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...S winds around 5 kt. Waves flat. A chance of showers. Vsby 1 to 3 NM. .FRI...SW winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. Patchy fog. .FRI NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .SAT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SAT NIGHT...W winds 5 to 10 kt. Waves 1 ft. .SUN...NW winds 10 to 15 kt. Waves 1 to 2 ft. .MON...NW winds 10 to 15 kt. Waves 1 to 2 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ532-152000- Chesapeake Bay from Sandy Point to North Beach- 134 AM EDT Thu May 15 2025 .OVERNIGHT...SE winds 5 kt. Waves flat. Numerous showers with isolated tstms. Patchy fog. .THU...S winds 5 to 10 kt. Waves flat. Scattered showers. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...S winds around 5 kt. Waves flat. A chance of showers. Vsby 1 to 3 NM. .FRI...SW winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. .FRI NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .SAT...SW winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers. .SAT NIGHT...W winds 10 kt. Waves 1 ft. .SUN...NW winds 10 to 15 kt. Waves 1 to 2 ft. .MON...NW winds 10 to 15 kt. Waves 1 to 2 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ540-152000- Eastern Bay- 134 AM EDT Thu May 15 2025 .OVERNIGHT...SE winds 5 kt. Waves flat. Scattered showers with isolated tstms. Patchy fog. Vsby 1 NM or less. .THU...S winds 5 to 10 kt. Waves flat. Scattered showers. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...S winds around 5 kt. Waves flat. A chance of showers. Vsby 1 to 3 NM. .FRI...SW winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. .FRI NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .SAT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SAT NIGHT...W winds 5 to 10 kt. Waves 1 ft. .SUN...NW winds 10 to 15 kt. Waves 1 ft. .MON...NW winds 10 to 15 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ533-152000- Chesapeake Bay from North Beach to Drum Point- 134 AM EDT Thu May 15 2025 .OVERNIGHT...S winds 5 to 10 kt. Waves flat. Scattered showers with isolated tstms. .THU...S winds 5 to 10 kt. Waves flat. Scattered showers. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...S winds around 5 kt. Waves flat. A chance of showers. Vsby 1 to 3 NM. .FRI...SW winds 5 to 10 kt. Waves 1 ft or less. A chance of showers. .FRI NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SAT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. A chance of showers. .SAT NIGHT...W winds 10 kt. Waves 1 ft. .SUN...NW winds 10 to 15 kt. Waves 2 ft. .MON...NW winds 10 to 15 kt. Waves 2 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ541-152000- Choptank River to Cambridge MD and the Little Choptank River- 134 AM EDT Thu May 15 2025 .OVERNIGHT...SE winds 5 kt. Waves flat. Scattered showers with isolated tstms. .THU...S winds 5 kt. Waves flat. Scattered showers. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...S winds around 5 kt. Waves flat. A chance of showers. Vsby 1 to 3 NM. .FRI...SW winds around 5 kt. Waves 1 ft or less. A chance of showers. .FRI NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .SAT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. A chance of showers. .SAT NIGHT...W winds 10 kt. Waves 1 ft. .SUN...NW winds 10 to 15 kt. Waves 1 to 2 ft. .MON...NW winds 10 to 15 kt. Waves 1 to 2 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ542-152000- Patuxent River to Broomes Island MD- 134 AM EDT Thu May 15 2025 .OVERNIGHT...S winds 5 kt. Waves less than 1 ft. Scattered showers with isolated tstms. .THU...SW winds 5 kt. Waves less than 1 ft. Scattered showers. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...S winds around 5 kt. Waves 1 ft. A chance of showers and tstms. Vsby 1 to 3 NM. .FRI...SW winds around 5 kt. Waves 1 ft. A chance of showers. .FRI NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .SAT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SAT NIGHT...W winds 5 to 10 kt. Waves 1 ft. .SUN...NW winds 5 to 10 kt. Waves 1 ft. .MON...NW winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ534-152000- Chesapeake Bay from Drum Point to Smith Point- 134 AM EDT Thu May 15 2025 .OVERNIGHT...S winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. .THU...S winds 5 to 10 kt. Waves 1 ft. Scattered showers. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...S winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. Patchy fog. Vsby 1 to 3 NM. .FRI...S winds 5 to 10 kt. Waves 1 ft. A chance of showers. Patchy fog. .FRI NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SAT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance of showers. .SAT NIGHT...W winds 10 kt. Waves 2 ft. .SUN...NW winds 10 to 15 kt. Waves 2 ft. .MON...NW winds 10 to 15 kt. Waves 2 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ543-152000- Tangier Sound and the inland waters surrounding Bloodsworth Island- 134 AM EDT Thu May 15 2025 .OVERNIGHT...S winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. .THU...S winds 5 to 10 kt. Waves 1 ft or less. Scattered showers. Patchy fog. Vsby 1 to 3 NM. .THU NIGHT...S winds 5 kt. Waves flat. A chance of showers and tstms. Patchy dense fog. Vsby 1 NM or less. .FRI...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers. Patchy dense fog. .FRI NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SAT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. A chance of showers. .SAT NIGHT...W winds 10 kt. Waves 1 ft. .SUN...NW winds 10 to 15 kt. Waves 1 ft. .MON...NW winds 10 to 15 kt. Waves 1 to 2 ft. Winds and waves higher and visibilities lower in and near tstms. $$