Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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359 FZUS51 KLWX 022058 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 457 PM EDT Fri Oct 2 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. ANZ500-030800- 457 PM EDT Fri Oct 2 2026 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... A cold front will stall near the area this weekend as a wave of low pressure passes to the south. A second cold front will cross the area Monday. High pressure will follow through the middle of next week. Small Craft Advisories will likely be needed Monday into Tuesday. $$ ANZ535-030800- Tidal Potomac from Key Bridge to Indian Head- 457 PM EDT Fri Oct 2 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH SATURDAY MORNING... .REST OF THIS AFTERNOON...SW winds 5 kt. Waves less than 1 ft. A slight chance of showers and tstms. .TONIGHT...W winds around 5 kt...becoming N with gusts to 20 kt after midnight. Waves 1 ft. Showers likely. .SAT...NE winds around 5 kt. Waves 1 ft. A chance of showers. .SAT NIGHT...E winds around 5 kt. Waves 1 ft. A chance of showers. .SUN...NE winds around 5 kt. Waves 1 ft. Showers. .SUN NIGHT...N winds around 5 kt. Waves 1 ft. .MON...NW winds 5 to 10 kt. Waves 1 ft. .TUE...N winds 5 to 10 kt...becoming light. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ536-030800- Tidal Potomac from Indian Head to Cobb Island- 457 PM EDT Fri Oct 2 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH SATURDAY MORNING... .REST OF THIS AFTERNOON...SW winds 5 kt. Waves less than 1 ft. .TONIGHT...W winds around 5 kt...becoming N with gusts to 20 kt after midnight. Waves 1 ft. Showers likely. .SAT...N winds 5 to 10 kt. Waves 1 ft. Showers likely. .SAT NIGHT...NE winds around 5 kt. Waves 1 ft. Showers likely. .SUN...NE winds around 5 kt. Waves 1 ft. Showers. .SUN NIGHT...N winds around 5 kt. Waves 1 ft. .MON...N winds 5 to 10 kt. Waves 1 ft. .TUE...N winds 5 to 10 kt. Waves 1 ft or less. $$ ANZ537-030800- Tidal Potomac from Cobb Island to Smith Point- 457 PM EDT Fri Oct 2 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH SATURDAY AFTERNOON... .REST OF THIS AFTERNOON...SW winds 5 kt. Waves less than 1 ft. .TONIGHT...SW winds 5 kt...becoming N 10 to 15 kt with gusts to 20 kt after midnight. Waves 1 to 2 ft. A chance of showers. .SAT...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Showers likely. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. Showers. .SUN...NE winds 5 to 10 kt. Waves 1 ft. Showers. .SUN NIGHT...N winds 5 kt. Waves less than 1 ft. A chance of showers. .MON...N winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers in the morning. .TUE...N winds 10 to 15 kt...becoming NE around 5 kt. Waves 1 to 2 ft. $$ ANZ530-030800- Chesapeake Bay north of Pooles Island- 457 PM EDT Fri Oct 2 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH SATURDAY MORNING... .REST OF THIS AFTERNOON...SW winds 10 kt. Waves 1 ft. A slight chance of showers and tstms. .TONIGHT...W winds 5 to 10 kt with gusts to 20 kt... becoming N 10 to 15 kt with gusts to 20 kt after midnight. Waves 1 ft. A chance of showers. .SAT...NE winds 5 to 10 kt. Gusts up to 20 kt until late afternoon. Waves 1 ft. .SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft. .SUN...E winds 5 to 10 kt. Waves 1 ft. Showers. .SUN NIGHT...NE winds around 5 kt. Waves 1 ft. .MON...NW winds 10 to 15 kt. Waves 1 ft. .TUE...N winds 5 to 10 kt. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ531-030800- Chesapeake Bay from Pooles Island to Sandy Point- 457 PM EDT Fri Oct 2 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH SATURDAY MORNING... .REST OF THIS AFTERNOON...S winds 10 kt. Waves 1 ft. A slight chance of showers and tstms. .TONIGHT...W winds 5 to 10 kt with gusts to 20 kt... becoming N 10 to 15 kt with gusts to 20 kt after midnight. Waves 1 to 2 ft. Showers likely. .SAT...N winds 10 to 15 kt with gusts to 20 kt... becoming NE 5 kt late. Waves 1 to 2 ft. A chance of showers. .SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft. .SUN...E winds 5 to 10 kt. Waves 1 ft. Showers. .SUN NIGHT...N winds 5 kt. Waves less than 1 ft. .MON...NW winds 10 to 15 kt. Waves 1 to 2 ft. .TUE...N winds 10 to 15 kt...diminishing to around 5 kt. Waves 1 to 2 ft...subsiding to flat. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ538-030800- Patapsco River including Baltimore Harbor- 457 PM EDT Fri Oct 2 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH SATURDAY MORNING... .REST OF THIS AFTERNOON...SW winds 10 kt. Waves 1 ft. A slight chance of showers and tstms. .TONIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt in the late evening and overnight. Waves 1 ft. Showers likely. .SAT...NE winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...E winds 5 kt. Waves less than 1 ft. .SUN...E winds 5 to 10 kt. Waves 1 ft. Showers. .SUN NIGHT...NE winds around 5 kt. Waves 1 ft or less. .MON...NW winds 5 to 10 kt. Waves 1 ft. .TUE...N winds 5 to 10 kt. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ539-030800- Chester River to Queenstown MD- 457 PM EDT Fri Oct 2 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH SATURDAY MORNING... .REST OF THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft. .TONIGHT...W winds around 5 kt...becoming N 10 to 15 kt with gusts to 20 kt after midnight. Waves 1 to 2 ft. Showers likely. .SAT...NE winds 5 to 10 kt. Gusts up to 20 kt until late afternoon. Waves 1 to 2 ft. A chance of showers. .SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft or less. .SUN...E winds 5 to 10 kt. Waves 1 ft. Showers. .SUN NIGHT...N winds around 5 kt. Waves 1 ft or less. A chance of showers. .MON...NW winds 10 to 15 kt. Waves 1 to 2 ft. .TUE...N winds 10 to 15 kt...diminishing to around 5 kt. Waves 1 to 2 ft...subsiding to flat. $$ ANZ532-030800- Chesapeake Bay from Sandy Point to North Beach- 457 PM EDT Fri Oct 2 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH SATURDAY AFTERNOON... .REST OF THIS AFTERNOON...S winds 10 kt. Waves 1 ft. .TONIGHT...SW winds 5 to 10 kt...becoming NW with gusts to 20 kt late in the evening, then becoming N 15 to 20 kt with gusts to 25 kt after midnight. Waves 1 to 2 ft. Showers likely. .SAT...N winds 10 to 15 kt. Gusts up to 20 kt until late afternoon. Waves 2 ft. A chance of showers. .SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SUN...E winds 5 to 10 kt. Waves 1 ft. Showers. .SUN NIGHT...N winds 5 kt. Waves less than 1 ft. A chance of showers. .MON...NW winds 15 to 20 kt. Waves 1 to 2 ft. .TUE...N winds 10 to 15 kt...diminishing to around 5 kt. Waves 1 to 2 ft...subsiding to flat after midnight. $$ ANZ540-030800- Eastern Bay- 457 PM EDT Fri Oct 2 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH SATURDAY AFTERNOON... .REST OF THIS AFTERNOON...S winds 10 kt. Waves 1 ft. .TONIGHT...W winds 5 kt...becoming N 10 to 15 kt with gusts to 20 kt after midnight. Waves 1 to 2 ft. Showers likely. .SAT...N winds 10 to 15 kt with gusts to 20 kt... becoming NE 5 kt in the afternoon. Waves 1 ft. A chance of showers. .SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft or less. A chance of showers. .SUN...E winds 5 to 10 kt. Waves 1 ft. Showers. .SUN NIGHT...N winds around 5 kt. Waves 1 ft or less. A chance of showers. .MON...N winds 10 to 15 kt. Waves 1 to 2 ft. .TUE...N winds 10 to 15 kt...diminishing to around 5 kt. Waves 1 ft or less. $$ ANZ533-030800- Chesapeake Bay from North Beach to Drum Point- 457 PM EDT Fri Oct 2 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH SATURDAY AFTERNOON... .REST OF THIS AFTERNOON...S winds 10 kt. Waves 1 ft. .TONIGHT...SW winds 5 kt...becoming N 15 to 20 kt with gusts to 25 kt after midnight. Waves 1 ft...building to 3 ft after midnight. Showers likely. .SAT...N winds 15 to 20 kt...becoming NE 5 to 10 kt in the afternoon. Waves 2 to 3 ft. Showers likely. .SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SUN...NE winds 5 to 10 kt. Waves 1 ft. Showers. .SUN NIGHT...N winds 5 kt. Waves less than 1 ft. A chance of showers. .MON...N winds 15 to 20 kt. Waves 1 to 2 ft...building to 3 ft after midnight. .TUE...N winds 15 to 20 kt...diminishing to 5 to 10 kt. Waves 2 to 3 ft...subsiding to 1 ft or less. $$ ANZ541-030800- Choptank River to Cambridge MD and the Little Choptank River- 457 PM EDT Fri Oct 2 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH SATURDAY AFTERNOON... .REST OF THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft. .TONIGHT...W winds 5 kt...becoming N 15 to 20 kt with gusts to 25 kt after midnight. Waves 1 to 2 ft. Showers likely. .SAT...N winds 10 to 15 kt with gusts to 20 kt... becoming NE 5 kt late. Waves 1 to 2 ft. Showers likely. .SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SUN...E winds 5 to 10 kt. Waves 1 ft. Showers. .SUN NIGHT...N winds 5 kt. Waves less than 1 ft. A chance of showers. .MON...N winds 15 to 20 kt. Waves 1 to 2 ft. .TUE...N winds 15 to 20 kt...becoming NE 5 to 10 kt. Waves 1 to 2 ft...subsiding to flat after midnight. $$ ANZ542-030800- Patuxent River to Broomes Island MD- 457 PM EDT Fri Oct 2 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH SATURDAY AFTERNOON... .REST OF THIS AFTERNOON...SW winds 5 kt. Waves less than 1 ft. .TONIGHT...SW winds around 5 kt...becoming N with gusts to 20 kt after midnight. Waves 1 ft. Showers likely. .SAT...N winds 5 to 10 kt. Gusts up to 20 kt until late afternoon. Waves 1 ft. Showers likely. .SAT NIGHT...NE winds around 5 kt. Waves 1 ft. Showers likely. .SUN...NE winds 5 kt. Waves less than 1 ft. Showers. .SUN NIGHT...N winds around 5 kt. Waves 1 ft. A chance of showers. .MON...N winds 5 to 10 kt. Waves 1 ft. .TUE...N winds 5 to 10 kt. Waves 1 ft. $$ ANZ534-030800- Chesapeake Bay from Drum Point to Smith Point- 457 PM EDT Fri Oct 2 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH SATURDAY AFTERNOON... .REST OF THIS AFTERNOON...S winds 10 kt. Waves 1 ft. .TONIGHT...SW winds 5 to 10 kt...becoming N 10 to 15 kt with gusts to 20 kt after midnight. Waves 1 ft... building to 3 ft after midnight. A chance of showers. .SAT...N winds 10 to 15 kt. Gusts up to 20 kt. Waves 2 to 3 ft. Showers likely. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SUN...NE winds 5 to 10 kt. Waves 1 ft. Showers. .SUN NIGHT...N winds 5 to 10 kt. Waves 1 ft. A chance of showers. .MON...N winds 15 to 20 kt. Waves 2 to 3 ft. A chance of showers in the morning. .TUE...N winds 15 to 20 kt...becoming NE 5 to 10 kt. Waves 2 to 3 ft...subsiding to 1 ft. $$ ANZ543-030800- Tangier Sound and the inland waters surrounding Bloodsworth Island- 457 PM EDT Fri Oct 2 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH SATURDAY AFTERNOON... .REST OF THIS AFTERNOON...S winds 10 kt. Waves 1 ft. .TONIGHT...SW winds 5 to 10 kt...becoming N 10 to 15 kt after midnight. Gusts up to 20 kt. Waves 1 ft. A chance of showers. .SAT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Showers likely. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. Showers likely. .SUN...NE winds 5 to 10 kt. Waves 1 ft. Showers. .SUN NIGHT...N winds 5 to 10 kt. Waves 1 ft. A chance of showers. .MON...N winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers in the morning. .TUE...N winds 15 to 20 kt...diminishing to 5 to 10 kt. Waves 1 to 2 ft. $$