Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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976 FZUS51 KLWX 030835 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 435 AM EDT Thu Apr 3 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. ANZ500-032300- 435 AM EDT Thu Apr 3 2025 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... A warm front ahead of a deep low across the Upper Midwest will lift through the area through this morning. The accompanying cold front will slowly move through the area this evening into the night. Eventually this frontal zone is expected to meander nearby through Saturday before another area of low pressure lifts by Sunday. High pressure returns early next week. Small Craft Advisories may be needed Sunday into Sunday night. Boaters should be aware of the threats of boating in cold water, even when air temperatures are warm. Visit weather.gov/safety/coldwater for more information. $$ ANZ535-032300- Tidal Potomac from Key Bridge to Indian Head- 435 AM EDT Thu Apr 3 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .REST OF THE OVERNIGHT...S winds 10 kt. Waves 1 ft. A slight chance of showers. .TODAY...S winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt early in the evening. Waves 1 ft. A chance of showers. .FRI...NW winds 5 kt. Waves less than 1 ft. A chance of showers. .FRI NIGHT...E winds around 5 kt. Waves 1 ft. Showers likely with a chance of tstms. .SAT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SAT NIGHT...S winds 5 to 10 kt. Waves 1 ft. .SUN...SW winds 10 to 15 kt...becoming NW 5 to 10 kt after midnight. Waves 1 ft. A chance of showers in the morning, then showers. A chance of tstms through the night. .MON...NW winds 5 to 10 kt. Waves 1 ft. Showers likely, mainly in the morning. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ536-032300- Tidal Potomac from Indian Head to Cobb Island- 435 AM EDT Thu Apr 3 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .REST OF THE OVERNIGHT...S winds 10 kt with gusts to 20 kt. Waves 1 ft. A slight chance of showers. .TODAY...SW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. .TONIGHT...SW winds 10 kt with gusts to 20 kt. Waves 1 ft. A chance of showers. .FRI...W winds 5 to 10 kt...becoming N in the afternoon. Waves 1 ft. A chance of showers. .FRI NIGHT...E winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .SAT...SE winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .SUN...SW winds 15 to 20 kt...becoming NW 10 to 15 kt after midnight. Waves 1 to 2 ft. A chance of showers through the day, then showers with a chance of tstms through the night. .MON...N winds 5 to 10 kt. Waves 1 ft. Showers likely, mainly in the morning. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ537-032300- Tidal Potomac from Cobb Island to Smith Point- 435 AM EDT Thu Apr 3 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .REST OF THE OVERNIGHT...S winds 15 kt. Waves 2 ft. A slight chance of showers. .TODAY...S winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. .TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. A chance of showers. .FRI...SW winds 10 kt...becoming N in the afternoon. Waves 1 ft. A chance of showers. .FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SAT...SE winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .SUN...SW winds 15 to 20 kt...becoming W 10 to 15 kt after midnight. Waves 2 ft. A chance of showers in the afternoon. Showers with a chance of tstms through the night. .MON...N winds 10 to 15 kt. Waves 1 to 2 ft. Showers, mainly in the morning. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ530-032300- Chesapeake Bay north of Pooles Island- 435 AM EDT Thu Apr 3 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .REST OF THE OVERNIGHT...S winds 10 kt. Waves 1 ft. A chance of showers. .TODAY...S winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM. .TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt... becoming W 5 kt after midnight. Waves 1 to 2 ft. Showers likely with a chance of tstms. Vsby 1 NM or less. .FRI...N winds 5 kt. Waves less than 1 ft. Showers likely. .FRI NIGHT...NE winds around 5 kt. Waves 1 ft. Showers. .SAT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .SUN...SW winds 10 to 15 kt...becoming NW after midnight. Waves 1 to 2 ft. A chance of showers in the morning, then showers. A chance of tstms through the night. .MON...NW winds 5 to 10 kt. Waves 1 ft. Showers likely in the morning. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ531-032300- Chesapeake Bay from Pooles Island to Sandy Point- 435 AM EDT Thu Apr 3 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .REST OF THE OVERNIGHT...S winds 15 kt with gusts to 20 kt. Waves 2 ft. A chance of showers. .TODAY...S winds 15 kt with gusts to 25 kt. Waves 3 ft. A chance of showers. Vsby 1 to 3 NM. .TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt... becoming W 5 kt late. Waves 1 to 2 ft. Showers likely with a chance of tstms. Vsby 1 NM or less. .FRI...N winds 5 kt. Waves less than 1 ft. Showers likely. .FRI NIGHT...NE winds 5 kt. Waves less than 1 ft. Showers. .SAT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SAT NIGHT...S winds 10 to 15 kt. Waves 1 ft. .SUN...SW winds 10 to 15 kt...becoming NW after midnight. Waves 2 ft. A chance of showers in the morning, then showers. A chance of tstms through the night. .MON...NW winds 10 to 15 kt. Waves 1 ft. Showers likely, mainly in the morning. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ538-032300- Patapsco River including Baltimore Harbor- 435 AM EDT Thu Apr 3 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .REST OF THE OVERNIGHT...S winds 10 kt. Waves 1 ft. A chance of showers. .TODAY...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. A chance of showers. Vsby 1 to 3 NM. .TONIGHT...SW winds 5 to 10 kt. Waves 1 ft or less. Showers likely with a chance of tstms. .FRI...N winds 5 kt. Waves flat. Showers likely. .FRI NIGHT...NE winds around 5 kt. Waves flat. Showers. .SAT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SAT NIGHT...S winds 5 to 10 kt. Waves 1 ft. .SUN...SW winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft. A chance of showers in the morning, then showers. A chance of tstms through the night. .MON...NW winds 5 to 10 kt. Waves 1 ft. Showers likely in the morning. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ539-032300- Chester River to Queenstown MD- 435 AM EDT Thu Apr 3 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .REST OF THE OVERNIGHT...S winds 15 kt with gusts to 20 kt. Waves 2 ft. A slight chance of showers. .TODAY...S winds 15 kt with gusts to 25 kt. Waves 2 ft. A chance of showers. Vsby 1 to 3 NM. .TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt... becoming W 5 kt late. Waves 1 to 2 ft. Showers likely with a chance of tstms. .FRI...N winds 5 kt. Waves less than 1 ft. Showers likely. .FRI NIGHT...NE winds 5 kt. Waves less than 1 ft. Showers. .SAT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SAT NIGHT...S winds 10 to 15 kt. Waves 1 ft. .SUN...SW winds 10 to 15 kt...becoming NW after midnight. Waves 2 ft. A chance of showers through the day, then showers with a chance of tstms through the night. .MON...NW winds 10 to 15 kt. Waves 1 ft. Showers likely, mainly in the morning. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ532-032300- Chesapeake Bay from Sandy Point to North Beach- 435 AM EDT Thu Apr 3 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .REST OF THE OVERNIGHT...S winds 15 kt with gusts to 25 kt. Waves 3 ft. A slight chance of showers. .TODAY...S winds 15 kt with gusts to 25 kt. Waves 3 ft. A chance of showers. Vsby 1 to 3 NM. .TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. A chance of showers. .FRI...N winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI NIGHT...NE winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .SAT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SAT NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .SUN...SW winds 15 to 20 kt...becoming NW 10 to 15 kt after midnight. Waves 2 to 3 ft. A chance of showers through the day, then showers with a chance of tstms through the night. .MON...NW winds 10 to 15 kt. Waves 1 to 2 ft. Showers likely, mainly in the morning. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ540-032300- Eastern Bay- 435 AM EDT Thu Apr 3 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .REST OF THE OVERNIGHT...S winds 15 kt with gusts to 20 kt. Waves 2 ft. A slight chance of showers. .TODAY...S winds 15 kt with gusts to 25 kt. Waves 2 ft. A chance of showers. .TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt until early morning. Waves 1 to 2 ft. A chance of showers. .FRI...N winds 5 to 10 kt. Waves 1 ft. A chance of showers. .FRI NIGHT...NE winds 5 kt. Waves less than 1 ft. Showers with a chance of tstms. .SAT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SAT NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .SUN...SW winds 10 to 15 kt...becoming NW after midnight. Waves 1 to 2 ft. A chance of showers in the afternoon. Showers with a chance of tstms through the night. .MON...NW winds 10 to 15 kt. Waves 1 ft. Showers likely, mainly in the morning. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ533-032300- Chesapeake Bay from North Beach to Drum Point- 435 AM EDT Thu Apr 3 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .REST OF THE OVERNIGHT...S winds 15 kt with gusts to 25 kt. Waves 3 ft. A slight chance of showers. .TODAY...S winds 15 kt with gusts to 25 kt. Waves 3 ft. .TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance of showers. .FRI...W winds 5 to 10 kt...becoming N in the afternoon. Waves 1 ft. A chance of showers. .FRI NIGHT...NE winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .SAT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SAT NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .SUN...SW winds 15 to 20 kt...becoming NW 10 to 15 kt after midnight. Waves 2 to 3 ft. A chance of showers in the afternoon. Showers with a chance of tstms through the night. .MON...N winds 10 to 15 kt. Waves 1 to 2 ft. Showers, mainly in the morning. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ541-032300- Choptank River to Cambridge MD and the Little Choptank River- 435 AM EDT Thu Apr 3 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .REST OF THE OVERNIGHT...S winds 15 kt with gusts to 25 kt. Waves 2 ft. A slight chance of showers. .TODAY...S winds 15 kt with gusts to 25 kt. Waves 2 ft. .TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. A chance of showers. .FRI...W winds 5 to 10 kt...becoming N in the afternoon. Waves 1 ft. A chance of showers. .FRI NIGHT...NE winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .SAT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SAT NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .SUN...SW winds 15 to 20 kt...becoming NW 10 to 15 kt after midnight. Waves 2 ft. A chance of showers in the afternoon. Showers with a chance of tstms through the night. .MON...N winds 10 to 15 kt. Waves 1 to 2 ft. Showers, mainly in the morning. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ542-032300- Patuxent River to Broomes Island MD- 435 AM EDT Thu Apr 3 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .REST OF THE OVERNIGHT...S winds 10 kt with gusts to 20 kt. Waves 1 ft. .TODAY...S winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. A chance of showers. .FRI...W winds 5 to 10 kt...becoming N in the afternoon. Waves 1 ft. A chance of showers. .FRI NIGHT...E winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .SAT...SE winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .SUN...SW winds 10 to 15 kt...becoming NW after midnight. Waves 1 ft. A chance of showers in the afternoon. Showers with a chance of tstms through the night. .MON...N winds 5 to 10 kt. Waves 1 ft. Showers, mainly in the morning. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ534-032300- Chesapeake Bay from Drum Point to Smith Point- 435 AM EDT Thu Apr 3 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .REST OF THE OVERNIGHT...S winds 15 kt with gusts to 20 kt. Waves 3 ft. .TODAY...S winds 15 kt with gusts to 25 kt. Waves 3 ft. .TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft. A chance of showers. .FRI...SW winds 10 to 15 kt...becoming N in the afternoon. Waves 1 to 2 ft. A chance of showers. .FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SAT...SE winds 10 kt. Waves 1 ft. .SAT NIGHT...S winds 15 to 20 kt. Waves 2 to 3 ft. .SUN...SW winds 15 to 20 kt...becoming W 10 to 15 kt after midnight. Waves 2 to 3 ft. A chance of showers in the afternoon. Showers with a chance of tstms through the night. .MON...N winds 10 to 15 kt. Waves 1 to 2 ft. Showers, mainly in the morning. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ543-032300- Tangier Sound and the inland waters surrounding Bloodsworth Island- 435 AM EDT Thu Apr 3 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .REST OF THE OVERNIGHT...S winds 15 kt with gusts to 20 kt. Waves 2 ft. .TODAY...S winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. .TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance of showers. .FRI...SW winds 10 to 15 kt...becoming N 5 to 10 kt in the afternoon. Waves 1 ft. A chance of showers. .FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. .SAT...SE winds 5 to 10 kt. Waves 1 ft. .SAT NIGHT...S winds 15 to 20 kt. Waves 1 to 2 ft. .SUN...SW winds 15 to 20 kt...becoming W 10 to 15 kt after midnight. Waves 2 ft. A chance of showers in the afternoon. Showers through the night. .MON...N winds 10 to 15 kt. Waves 1 ft. Showers, mainly in the morning. $$