Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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178 FZUS51 KLWX 171508 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 1108 AM EDT Wed Jul 17 2024 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. ANZ500-172000- 1108 AM EDT Wed Jul 17 2024 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... A cold front will move into the area later today into Thursday bringing numerous showers and thunderstorms. The front will stall south of the area for the end of the workweek before lifting back to the north this weekend. Small Craft Advisories may be needed for portions of the waters Thursday night. $$ ANZ535-172000- Tidal Potomac from Key Bridge to Indian Head- 1108 AM EDT Wed Jul 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... .REST OF TODAY...SW winds 5 to 10 kt. Gusts up to 20 kt this afternoon. Waves 1 ft. Numerous showers and tstms this afternoon with vsby 1 NM or less. .TONIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves 1 ft. Showers and tstms. Patchy fog. Vsby 1 NM or less. .THU...N winds 5 kt. Waves less than 1 ft. .THU NIGHT...N winds around 5 kt. Waves 1 ft. .FRI...NE winds around 5 kt. Waves 1 ft. .FRI NIGHT...S winds around 5 kt. Waves 1 ft or less. .SAT...S winds around 5 kt. Waves 1 ft or less. .SUN...SE winds around 5 kt. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ536-172000- Tidal Potomac from Indian Head to Cobb Island- 1108 AM EDT Wed Jul 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... .REST OF TODAY...S winds 5 to 10 kt. Gusts up to 20 kt this afternoon. Waves 1 ft. Numerous showers and tstms this afternoon with vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves 1 ft. Showers and numerous tstms. Patchy fog. Vsby 1 NM or less. .THU...NW winds around 5 kt. Waves 1 ft. Scattered showers. Vsby 1 NM or less. .THU NIGHT...NE winds around 5 kt. Waves 1 ft. .FRI...NE winds around 5 kt. Waves 1 ft. .FRI NIGHT...SE winds around 5 kt. Waves 1 ft or less. .SAT...S winds around 5 kt. Waves 1 ft. A chance of showers and tstms through the night. .SUN...S winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ537-172000- Tidal Potomac from Cobb Island to Smith Point- 1108 AM EDT Wed Jul 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .REST OF TODAY...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Scattered showers and tstms this afternoon with vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt...becoming W 5 to 10 kt late. Gusts up to 20 kt. Waves 1 to 2 ft. Numerous showers and tstms. Patchy fog. Vsby 1 NM or less. .THU...NW winds 5 to 10 kt...becoming N late. Waves 1 ft. Scattered showers and tstms. Vsby 1 NM or less. .THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms. .FRI...NE winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...SE winds around 5 kt. Waves 1 ft or less. .SAT...S winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms through the night. .SUN...S winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ530-172000- Chesapeake Bay north of Pooles Island- 1108 AM EDT Wed Jul 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... .REST OF TODAY...SW winds 5 to 10 kt. Gusts up to 20 kt this afternoon. Waves 1 to 2 ft. Numerous showers and tstms this afternoon with vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt... becoming W 5 to 10 kt after midnight. Waves 1 to 2 ft. Showers and numerous tstms. Patchy fog. Vsby 1 NM or less. .THU...N winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...N winds 5 to 10 kt. Waves 1 ft. .FRI...N winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...S winds around 5 kt. Waves flat. .SAT...S winds around 5 kt. Waves 1 ft. .SUN...S winds around 5 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ531-172000- Chesapeake Bay from Pooles Island to Sandy Point- 1108 AM EDT Wed Jul 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... .REST OF TODAY...S winds 10 kt. Gusts up to 20 kt this afternoon. Waves 1 to 2 ft. Numerous showers and tstms this afternoon with vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt...becoming W late. Gusts up to 20 kt. Waves 1 to 2 ft. Showers and tstms. Patchy fog. Vsby 1 NM or less. .THU...N winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...N winds 5 to 10 kt. Waves 1 to 2 ft. .FRI...NE winds 5 to 10 kt. Waves 1 to 2 ft. .FRI NIGHT...S winds around 5 kt. Waves flat. .SAT...S winds 5 to 10 kt. Waves 1 ft or less. .SUN...S winds around 5 kt. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ538-172000- Patapsco River including Baltimore Harbor- 1108 AM EDT Wed Jul 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... .REST OF TODAY...SW winds 5 to 10 kt. Gusts up to 20 kt this afternoon. Waves 1 ft. Numerous showers and tstms this afternoon with vsby 1 NM or less. .TONIGHT...W winds 5 to 10 kt. Waves 1 ft. Showers and tstms. Vsby 1 NM or less. .THU...N winds 5 kt. Waves less than 1 ft. .THU NIGHT...N winds 5 to 10 kt. Waves 1 ft. .FRI...NE winds 5 to 10 kt. Waves 1 ft or less. .FRI NIGHT...S winds around 5 kt. Waves flat. .SAT...S winds around 5 kt. Waves 1 ft or less. .SUN...S winds around 5 kt. Waves flat. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ539-172000- Chester River to Queenstown MD- 1108 AM EDT Wed Jul 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... .REST OF TODAY...SW winds 5 to 10 kt. Gusts up to 20 kt this afternoon. Waves 1 to 2 ft. Scattered showers and tstms this afternoon with vsby 1 NM or less. .TONIGHT...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 to 2 ft. Showers and numerous tstms. Patchy fog. Vsby 1 NM or less. .THU...N winds 5 to 10 kt. Waves 1 ft. .THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .FRI...N winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...S winds around 5 kt. Waves flat. .SAT...S winds around 5 kt. Waves 1 ft or less. .SUN...SW winds 5 kt. Waves flat. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ532-172000- Chesapeake Bay from Sandy Point to North Beach- 1108 AM EDT Wed Jul 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... .REST OF TODAY...S winds 5 to 10 kt with gusts to 20 kt... increasing to 15 kt with gusts to 20 kt late. Waves 1 to 2 ft. Scattered showers and tstms this afternoon with vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt...becoming W 5 to 10 kt after midnight. Gusts up to 20 kt. Waves 1 to 2 ft. Showers and tstms. Patchy fog. Vsby 1 NM or less. .THU...N winds 5 to 10 kt. Waves 1 ft. Scattered showers. .THU NIGHT...NE winds 5 to 10 kt. Waves 1 to 2 ft. .FRI...NE winds 5 to 10 kt. Waves 1 to 2 ft. .FRI NIGHT...S winds around 5 kt. Waves flat. .SAT...S winds 5 to 10 kt. Waves 1 ft or less. .SUN...S winds 5 kt. Waves less than 1 ft. A chance of showers and tstms through the night. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ540-172000- Eastern Bay- 1108 AM EDT Wed Jul 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... .REST OF TODAY...SW winds 5 to 10 kt with gusts to 20 kt...becoming S 15 kt with gusts to 20 kt late. Waves 1 ft. Scattered showers and tstms this afternoon with vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt...becoming W 5 to 10 kt after midnight. Gusts up to 20 kt. Waves 1 to 2 ft. Showers and numerous tstms. Patchy fog. Vsby 1 NM or less. .THU...N winds 5 to 10 kt. Waves 1 ft. Scattered showers. .THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .FRI...N winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...S winds around 5 kt. Waves flat. .SAT...S winds around 5 kt. Waves 1 ft or less. .SUN...S winds 5 kt. Waves flat. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ533-172000- Chesapeake Bay from North Beach to Drum Point- 1108 AM EDT Wed Jul 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... .REST OF TODAY...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Scattered showers and tstms this afternoon with vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt...becoming W after midnight. Gusts up to 20 kt. Waves 1 to 2 ft. Showers and tstms. Patchy fog. Vsby 1 NM or less. .THU...N winds 5 to 10 kt. Waves 1 ft. Scattered showers. Vsby 1 NM or less. .THU NIGHT...N winds 5 to 10 kt. Waves 1 to 2 ft. .FRI...NE winds 5 to 10 kt. Waves 1 to 2 ft. .FRI NIGHT...SE winds around 5 kt. Waves flat. .SAT...S winds 5 to 10 kt. Waves 1 ft or less. .SUN...S winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ541-172000- Choptank River to Cambridge MD and the Little Choptank River- 1108 AM EDT Wed Jul 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... .REST OF TODAY...S winds 10 to 15 kt. Gusts up to 20 kt this afternoon. Waves 1 to 2 ft. Scattered showers and tstms this afternoon with vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt...becoming W after midnight. Gusts up to 20 kt. Waves 1 to 2 ft. Showers and numerous tstms. Patchy fog. Vsby 1 NM or less. .THU...NW winds 5 to 10 kt. Waves 1 ft. Scattered showers. .THU NIGHT...N winds 5 to 10 kt. Waves 1 ft. Scattered showers. .FRI...NE winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...SE winds around 5 kt. Waves flat. .SAT...S winds around 5 kt. Waves 1 ft or less. .SUN...S winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ542-172000- Patuxent River to Broomes Island MD- 1108 AM EDT Wed Jul 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... .REST OF TODAY...SW winds 10 to 15 kt. Gusts up to 20 kt this afternoon. Waves 1 ft. Scattered showers and tstms this afternoon with vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt... becoming W 5 kt late. Waves 1 ft. Showers and numerous tstms. Patchy fog. Vsby 1 NM or less. .THU...N winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. Vsby 1 NM or less. .THU NIGHT...N winds around 5 kt. Waves 1 ft. Scattered showers and tstms. .FRI...NE winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...SE winds around 5 kt. Waves 1 ft. .SAT...S winds around 5 kt. Waves 1 ft. A chance of showers through the night. .SUN...S winds around 5 kt. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ534-172000- Chesapeake Bay from Drum Point to Smith Point- 1108 AM EDT Wed Jul 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .REST OF TODAY...S winds 15 kt. Gusts up to 20 kt... increasing to 25 kt late. Waves 2 to 3 ft. Scattered showers and tstms this afternoon with vsby 1 NM or less. .TONIGHT...SW winds 15 to 20 kt with gusts to 25 kt... becoming W 10 to 15 kt late. Waves 2 to 3 ft. Showers and numerous tstms. Patchy fog. Vsby 1 NM or less. .THU...NW winds 5 to 10 kt. Waves 1 to 2 ft. Scattered showers and tstms. Vsby 1 NM or less. .THU NIGHT...N winds 5 to 10 kt. Waves 1 to 2 ft. Scattered showers and tstms. .FRI...NE winds 5 to 10 kt. Waves 1 to 2 ft. .FRI NIGHT...SE winds 5 kt. Waves less than 1 ft. .SAT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers. A chance of tstms through the night. .SUN...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ543-172000- Tangier Sound and the inland waters surrounding Bloodsworth Island- 1108 AM EDT Wed Jul 17 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .REST OF TODAY...S winds 15 kt with gusts to 25 kt. Waves 2 ft. Isolated showers and tstms this afternoon with vsby 1 NM or less. .TONIGHT...SW winds 15 to 20 kt...diminishing to 10 to 15 kt late. Gusts up to 25 kt. Waves 2 ft. Showers and numerous tstms. Patchy fog. Vsby 1 NM or less. .THU...NW winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms. Vsby 1 NM or less. .THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms. .FRI...NE winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...SE winds 5 kt. Waves flat. .SAT...SE winds 5 to 10 kt. Waves 1 ft or less. A chance of showers. A chance of tstms through the night. .SUN...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$