


Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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003 FZUS51 KLWX 081332 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 931 AM EDT Wed Oct 8 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. ANZ500-082000- 931 AM EDT Wed Oct 8 2025 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... A cold front approaching from the west will track across the waters this morning. A strong area of Canadian high pressure will build in from the north and west Thursday into Friday. A coastal low will likely approach from the south and east this weekend. Small Craft Advisories will likely be needed this weekend, and Gale conditions can`t be ruled out. $$ ANZ535-082000- Tidal Potomac from Key Bridge to Indian Head- 931 AM EDT Wed Oct 8 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TODAY...NW winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .TONIGHT...N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. .THU...N winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...NE winds around 5 kt. Waves 1 ft. .FRI...E winds around 5 kt. Waves 1 ft. .FRI NIGHT...E winds around 5 kt. Waves 1 ft. .SAT...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers after midnight. .SUN...N winds 10 to 15 kt. Waves 1 ft. A chance of showers. $$ ANZ536-082000- Tidal Potomac from Indian Head to Cobb Island- 931 AM EDT Wed Oct 8 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TODAY...NW winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft. Isolated showers late this morning. .TONIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .THU...N winds 10 kt with gusts to 20 kt. Waves 1 ft. .THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .FRI...E winds 5 kt. Waves less than 1 ft. .FRI NIGHT...E winds around 5 kt. Waves 1 ft. .SAT...NE winds 10 to 15 kt. Waves 1 ft. A chance of showers after midnight. .SUN...N winds 10 to 15 kt. Waves 1 ft. A chance of showers. $$ ANZ537-082000- Tidal Potomac from Cobb Island to Smith Point- 931 AM EDT Wed Oct 8 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON... .REST OF TODAY...W winds 15 kt with gusts to 25 kt... becoming N with gusts to 30 kt late. Waves 1 to 2 ft. Scattered showers late this morning, then isolated showers this afternoon. .TONIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft. .THU...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. .THU NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .FRI...E winds 5 to 10 kt. Waves 1 to 2 ft. .FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft. .SAT...NE winds 15 to 20 kt. Waves 2 to 3 ft. A chance of showers through the night. .SUN...N winds 20 to 25 kt. Waves 3 ft. A chance of showers. $$ ANZ530-082000- Chesapeake Bay north of Pooles Island- 931 AM EDT Wed Oct 8 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON... .REST OF TODAY...NW winds 15 kt with gusts to 25 kt. Waves 1 ft. Scattered showers late this morning with vsby 1 to 3 NM. .TONIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. .THU...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .FRI...E winds 5 to 10 kt. Waves 1 ft or less. .FRI NIGHT...E winds around 5 kt. Waves flat. .SAT...NE winds 10 to 15 kt. Waves 1 ft. A chance of showers through the night. .SUN...N winds 15 to 20 kt. Waves 1 ft. A chance of showers. $$ ANZ531-082000- Chesapeake Bay from Pooles Island to Sandy Point- 931 AM EDT Wed Oct 8 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON... .REST OF TODAY...NW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. Scattered showers late this morning. .TONIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. .THU...N winds 15 to 20 kt...becoming NE 10 kt late. Gusts up to 25 kt. Waves 2 ft. .THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .FRI...E winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...SE winds 5 kt. Waves less than 1 ft. .SAT...NE winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers through the night. .SUN...N winds 15 to 20 kt. Waves 2 to 3 ft. A chance of showers. $$ ANZ538-082000- Patapsco River including Baltimore Harbor- 931 AM EDT Wed Oct 8 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON... .REST OF TODAY...NW winds 15 kt with gusts to 25 kt. Waves 1 ft. Isolated showers late this morning. .TONIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .THU...N winds 10 kt with gusts to 20 kt. Waves 1 ft. .THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .FRI...E winds 5 kt. Waves less than 1 ft. .FRI NIGHT...SE winds 5 kt. Waves less than 1 ft. .SAT...NE winds 10 to 15 kt. Waves 1 ft. A chance of showers after midnight. .SUN...N winds 10 to 15 kt. Waves 1 ft. A chance of showers. $$ ANZ539-082000- Chester River to Queenstown MD- 931 AM EDT Wed Oct 8 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON... .REST OF TODAY...NW winds 15 kt with gusts to 25 kt. Waves 2 ft. Scattered showers late this morning with vsby 1 to 3 NM. .TONIGHT...N winds 15 kt with gusts to 25 kt. Waves 2 ft. .THU...N winds 10 to 15 kt. Gusts up to 25 kt until late afternoon. Waves 2 ft. .THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .FRI...E winds 5 to 10 kt. Waves 1 ft or less. .FRI NIGHT...E winds 5 kt. Waves flat. .SAT...NE winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers through the night. .SUN...N winds 15 kt. Waves 2 ft. A chance of showers. $$ ANZ532-082000- Chesapeake Bay from Sandy Point to North Beach- 931 AM EDT Wed Oct 8 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON... .REST OF TODAY...NW winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. Scattered showers late this morning. .TONIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. .THU...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. .THU NIGHT...NE winds 10 kt. Waves 1 to 2 ft. .FRI...E winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SAT...NE winds 15 to 20 kt. Waves 1 to 2 ft... building to 3 ft after midnight. A chance of showers through the night. .SUN...N winds 20 to 25 kt. Waves 3 ft. A chance of showers. $$ ANZ540-082000- Eastern Bay- 931 AM EDT Wed Oct 8 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON... .REST OF TODAY...NW winds 15 kt...becoming N late. Gusts up to 25 kt. Waves 1 to 2 ft. Scattered showers late this morning with vsby 1 to 3 NM. .TONIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. .THU...N winds 10 to 15 kt. Gusts up to 25 kt until late afternoon. Waves 1 to 2 ft. .THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .FRI...E winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...E winds 5 kt. Waves less than 1 ft. .SAT...NE winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers through the night. .SUN...N winds 15 to 20 kt. Waves 2 ft. A chance of showers. $$ ANZ533-082000- Chesapeake Bay from North Beach to Drum Point- 931 AM EDT Wed Oct 8 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON... .REST OF TODAY...NW winds 15 to 20 kt with gusts to 25 kt...becoming N with gusts to 30 kt late. Waves 2 to 3 ft. Scattered showers late this morning, then isolated showers this afternoon. .TONIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 4 ft. .THU...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. .THU NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .FRI...E winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft. .SAT...NE winds 20 to 25 kt. Waves 1 to 2 ft... building to 3 ft. A chance of showers through the night. .SUN...N winds 25 to 30 kt. Waves 3 ft...building to 4 ft. A chance of showers. $$ ANZ541-082000- Choptank River to Cambridge MD and the Little Choptank River- 931 AM EDT Wed Oct 8 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON... .REST OF TODAY...NW winds 15 to 20 kt with gusts to 25 kt...becoming N with gusts to 30 kt late. Waves 2 ft. Scattered showers late this morning, then isolated showers this afternoon. Vsby 1 to 3 NM late this morning. .TONIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft. .THU...N winds 15 to 20 kt...becoming NE 10 kt late. Gusts up to 25 kt. Waves 2 ft. .THU NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .FRI...E winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft. .SAT...NE winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers through the night. .SUN...N winds 20 to 25 kt. Waves 2 to 3 ft. A chance of showers. $$ ANZ542-082000- Patuxent River to Broomes Island MD- 931 AM EDT Wed Oct 8 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON... .REST OF TODAY...W winds 10 kt...becoming NW this afternoon. Gusts up to 25 kt. Waves 1 ft. Scattered showers late this morning, then isolated showers this afternoon. .TONIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .THU...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .THU NIGHT...NE winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. .FRI...E winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...E winds 5 kt. Waves less than 1 ft. .SAT...NE winds 10 to 15 kt. Waves 1 ft. A chance of showers through the night. .SUN...N winds 20 to 25 kt. Waves 1 ft. A chance of showers. $$ ANZ534-082000- Chesapeake Bay from Drum Point to Smith Point- 931 AM EDT Wed Oct 8 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON... .REST OF TODAY...SW winds 15 kt...becoming NW 20 to 25 kt this afternoon. Gusts up to 30 kt. Waves 2 to 3 ft. Scattered showers. .TONIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft. .THU...N winds 15 to 20 kt. Gusts up to 30 kt... diminishing to 20 kt late. Waves 3 ft. .THU NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .FRI...E winds 10 to 15 kt. Waves 1 to 2 ft. .FRI NIGHT...E winds 10 kt. Waves 1 ft. .SAT...NE winds 20 to 25 kt. Waves 2 to 3 ft... building to 4 ft after midnight. A chance of showers through the night. .SUN...N winds 25 to 30 kt. Waves 4 ft...building to 5 ft. A chance of showers. $$ ANZ543-082000- Tangier Sound and the inland waters surrounding Bloodsworth Island- 931 AM EDT Wed Oct 8 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON... .REST OF TODAY...SW winds 15 kt...becoming NW this afternoon. Gusts up to 30 kt. Waves 2 ft. Numerous showers late this morning, then scattered showers this afternoon. Vsby 1 to 3 NM late this morning. .TONIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. .THU...NE winds 15 to 20 kt. Gusts up to 30 kt... diminishing to 20 kt in the afternoon. Waves 2 ft. .THU NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .FRI...E winds 10 to 15 kt. Waves 1 ft. .FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft. .SAT...NE winds 20 to 25 kt. Waves 1 to 2 ft. A chance of showers through the night. .SUN...N winds 25 to 30 kt. Waves 2 to 3 ft. A chance of showers. $$