390 FZUS51 KLWX 100103 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 903 PM EDT Thu Jul 9 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. ANZ500-100800- 903 PM EDT Thu Jul 9 2026 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... A frontal zone will meander about the Mid-Atlantic through Friday. Another cold front will push south across the waters this weekend before settling south over the Carolinas by early next week. Special Marine Warnings may be needed for strong to severe thunderstorms through Saturday, but especially this afternoon and evening. $$ ANZ535-100800- Tidal Potomac from Key Bridge to Indian Head- 903 PM EDT Thu Jul 9 2026 .REST OF TONIGHT...SW winds around 5 kt. Waves 1 ft or less. Isolated showers late this evening. .FRI...W winds around 5 kt. Waves 1 ft. Scattered showers and tstms. .FRI NIGHT...W winds around 5 kt. Waves 1 ft or less. Scattered showers and tstms. .SAT...NW winds around 5 kt. Waves 1 ft. Showers likely with a chance of tstms. .SAT NIGHT...N winds around 5 kt. Waves 1 ft. .SUN...NE winds 5 kt. Waves less than 1 ft. .SUN NIGHT...E winds around 5 kt. Waves 1 ft. .MON...SE winds around 5 kt. Waves 1 ft. .TUE...SW winds around 5 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ536-100800- Tidal Potomac from Indian Head to Cobb Island- 903 PM EDT Thu Jul 9 2026 .REST OF TONIGHT...W winds 5 kt. Waves less than 1 ft. Isolated showers and tstms late this evening. .FRI...W winds around 5 kt. Waves 1 ft. Scattered showers and tstms. .FRI NIGHT...W winds around 5 kt. Waves 1 ft. Scattered showers and tstms. .SAT...NW winds around 5 kt. Waves 1 ft. Showers likely with a chance of tstms. .SAT NIGHT...N winds around 5 kt. Waves 1 ft. A chance of showers. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 to 10 kt...becoming S after midnight. Waves 1 ft. .TUE...SW winds around 5 kt. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ537-100800- Tidal Potomac from Cobb Island to Smith Point- 903 PM EDT Thu Jul 9 2026 .REST OF TONIGHT...W winds 5 kt. Waves less than 1 ft. Scattered showers and tstms late this evening. .FRI...W winds 5 kt. Waves less than 1 ft. .FRI NIGHT...SW winds 5 kt. Waves flat. Scattered showers and tstms. .SAT...NW winds 5 kt. Waves less than 1 ft. Showers with a chance of tstms. .SAT NIGHT...N winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 to 2 ft. .MON...E winds 5 to 10 kt. Waves 1 ft. .TUE...NE winds around 5 kt...becoming S. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ530-100800- Chesapeake Bay north of Pooles Island- 903 PM EDT Thu Jul 9 2026 .REST OF TONIGHT...W winds 5 kt. Waves flat. Isolated showers and tstms late this evening. .FRI...W winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. .FRI NIGHT...W winds around 5 kt. Waves 1 ft or less. Scattered showers. .SAT...N winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .SAT NIGHT...NE winds 5 kt. Waves less than 1 ft. .SUN...NE winds 5 kt. Waves less than 1 ft. .SUN NIGHT...E winds around 5 kt. Waves 1 ft or less. .MON...SE winds around 5 kt. Waves flat. .TUE...SW winds 5 to 10 kt. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ531-100800- Chesapeake Bay from Pooles Island to Sandy Point- 903 PM EDT Thu Jul 9 2026 .REST OF TONIGHT...W winds 5 kt. Waves less than 1 ft. Isolated showers and tstms late this evening. .FRI...W winds 5 kt. Waves less than 1 ft. .FRI NIGHT...W winds around 5 kt. Waves 1 ft or less. Scattered showers. .SAT...N winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 to 10 kt...becoming S after midnight. Waves 1 ft or less. .TUE...SW winds 5 to 10 kt. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ538-100800- Patapsco River including Baltimore Harbor- 903 PM EDT Thu Jul 9 2026 .REST OF TONIGHT...W winds 5 kt. Waves flat. Isolated showers late this evening. .FRI...W winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. .FRI NIGHT...W winds around 5 kt. Waves 1 ft or less. Scattered showers. .SAT...N winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .SAT NIGHT...NE winds 5 kt. Waves less than 1 ft. .SUN...NE winds 5 kt. Waves less than 1 ft. .SUN NIGHT...E winds around 5 kt. Waves 1 ft. .MON...SE winds around 5 kt. Waves 1 ft or less. .TUE...SW winds 5 to 10 kt. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ539-100800- Chester River to Queenstown MD- 903 PM EDT Thu Jul 9 2026 .REST OF TONIGHT...W winds 5 kt. Waves less than 1 ft. Isolated showers and tstms late this evening. .FRI...W winds 5 kt. Waves less than 1 ft. .FRI NIGHT...W winds around 5 kt. Waves 1 ft or less. Scattered showers and tstms. .SAT...N winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .SAT NIGHT...NE winds 5 kt. Waves less than 1 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...E winds around 5 kt. Waves 1 ft or less. .MON...SE winds around 5 kt. Waves 1 ft or less. .TUE...SW winds 5 to 10 kt. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ532-100800- Chesapeake Bay from Sandy Point to North Beach- 903 PM EDT Thu Jul 9 2026 .REST OF TONIGHT...W winds 5 to 10 kt. Waves 1 ft. Isolated showers and tstms late this evening. .FRI...SW winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...SW winds around 5 kt. Waves 1 ft or less. Scattered showers and tstms. .SAT...N winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 to 10 kt...becoming S after midnight. Waves 1 ft or less. .TUE...SW winds 5 to 10 kt. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ540-100800- Eastern Bay- 903 PM EDT Thu Jul 9 2026 .REST OF TONIGHT...W winds 5 kt. Waves less than 1 ft. Scattered showers and tstms late this evening. .FRI...W winds 5 kt. Waves less than 1 ft. .FRI NIGHT...W winds around 5 kt. Waves 1 ft or less. Scattered showers and tstms. .SAT...N winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...SE winds around 5 kt. Waves 1 ft or less. .TUE...SW winds 5 to 10 kt. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ533-100800- Chesapeake Bay from North Beach to Drum Point- 903 PM EDT Thu Jul 9 2026 .REST OF TONIGHT...W winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms late this evening. .FRI...W winds 5 to 10 kt...becoming S late. Waves1 ft. .FRI NIGHT...SW winds 5 kt. Waves less than 1 ft. Scattered showers and tstms. .SAT...N winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 to 10 kt...becoming S after midnight. Waves 1 ft. .TUE...NW winds around 5 kt...becoming S. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ541-100800- Choptank River to Cambridge MD and the Little Choptank River- 903 PM EDT Thu Jul 9 2026 .REST OF TONIGHT...W winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms late this evening. .FRI...W winds 5 to 10 kt. Waves 1 ft. .FRI NIGHT...SW winds around 5 kt. Waves 1 ft or less. Scattered showers and tstms. .SAT...N winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 to 10 kt. Waves 1 ft or less. .TUE...SW winds 5 to 10 kt. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ542-100800- Patuxent River to Broomes Island MD- 903 PM EDT Thu Jul 9 2026 .REST OF TONIGHT...SW winds 5 kt. Waves less than 1 ft. Scattered showers and tstms late this evening. .FRI...W winds 5 kt. Waves less than 1 ft. .FRI NIGHT...SW winds around 5 kt. Waves 1 ft. Scattered showers and tstms. .SAT...N winds around 5 kt. Waves 1 ft. Showers with a chance of tstms. .SAT NIGHT...N winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. .SUN...NE winds 5 to 10 kt. Waves 1 ft. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...SE winds around 5 kt. Waves 1 ft. .TUE...S winds around 5 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ534-100800- Chesapeake Bay from Drum Point to Smith Point- 903 PM EDT Thu Jul 9 2026 .REST OF TONIGHT...W winds 5 to 10 kt. Waves 1 ft. Numerous showers and scattered tstms late this evening. .FRI...W winds 5 to 10 kt...becoming S late. Waves 1 ft. .FRI NIGHT...SW winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms. .SAT...NW winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. .SAT NIGHT...N winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SUN...NE winds 5 to 10 kt. Waves 1 to 2 ft. .SUN NIGHT...E winds 10 to 15 kt. Waves 1 to 2 ft. .MON...E winds 5 to 10 kt. Waves 1 ft. .TUE...NE winds 5 kt...becoming SE in the afternoon and evening, then becoming SW after midnight. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ543-100800- Tangier Sound and the inland waters surrounding Bloodsworth Island- 903 PM EDT Thu Jul 9 2026 .REST OF TONIGHT...W winds 10 kt. Waves 1 ft. Numerous showers and scattered tstms late this evening. .FRI...W winds 5 to 10 kt...becoming S late. Waves 1 ft. .FRI NIGHT...SW winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms. .SAT...NW winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms. .SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .SUN...NE winds 10 kt. Waves 1 ft. .SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft. .MON...E winds 5 to 10 kt. Waves 1 ft. .TUE...NE winds 5 kt...becoming S. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$  372 FZZS50 NSTU 100141 CWFPPG Coastal Waters Forecast National Weather Service Pago Pago AS 241 PM SST Thu Jul 9 2026 American Samoa coastal waters out to 40 nautical miles including National Marine Sanctuary of American Samoa PSZ100-101415- 241 PM SST Thu Jul 9 2026 .Synopsis for American Samoa coastal waters...A trough will diminish in the area tonight. A strong high pressure system building over New Zealand will dominate through the new week. $$ PSZ152-154>159-101415- Swains Island-Pago Pago Harbor- Northern Coastal waters of Tutuila and Aunuu- Southern Coastal waters of Tutuila and Aunuu- Northern Coastal waters of Manua-Southern Coastal waters of Manua- Coastal waters of Rose Atoll- 241 PM SST Thu Jul 9 2026 ...A Small Craft Advisory remains in effect... .TONIGHT...South wind 15 knots. Seas 6 to 8 feet. Widespread showers becoming numerous overnight. .FRIDAY...South wind 15 knots. Seas 5 to 7 feet. Scattered showers. .FRIDAY NIGHT...Southeast wind 15 knots. Seas 5 to 7 feet. Scattered showers. .SATURDAY...Southeast wind 15 knots. Seas 5 to 7 feet. Scattered showers. .SATURDAY NIGHT...Southeast wind 15 knots. Seas 5 to 7 feet. Scattered showers. .SUNDAY...Southeast wind 15 knots. Seas 5 to 7 feet. Scattered showers. .SUNDAY NIGHT...Southeast wind 20 knots. Seas 5 to 7 feet. Scattered showers. .MONDAY...Southeast wind 15 to 20 knots. Seas 6 to 8 feet. Scattered showers. .TUESDAY...Southeast wind 20 to 25 knots. Seas 6 to 8 feet. Scattered showers. $$ The next scheduled forecast will be issued at 1000 PM SST. For the other forecasts and model data go to our web page http://www.weather.gov/ppg && .VAAIGA LAUTELE O LE TAU MO GATAIFALE O AMERIKA SAMOA...E faaitiitia uiga louloua o tau i luga o le atusamoa i le po nanei. O le a faatupulaia peau mamafa o le ea mai saute i le Aso Faraile, ma e tumau i luga o le atunuu e oo atu i le vaiaso fou. ...O loo faaauau le Fautuaga ma Vaa Laiti... .PO NANEI...Savili mai saute 15 note. Sami e 6 i le 8 futu. E tetele timuga faasoloina le toulu o timuga e te'a mai le vaeluaga o le po. .ASO FARAILE...Savili mai saute 15 note. Sami e 5 i le 7 futu. E ta'ape solo timu. .PO ASO FARAILE...Savili mai saute i sasa'e 15 note. Sami e 5 i le 7 futu. E ta'ape solo timu. .ASO TOANA'I...Savili mai saute i sasa'e 15 note. Sami e 5 i le 7 futu. E ta'ape solo timu. .PO ASO TOANA'I...Savili mai saute i sasa'e 15 note. Sami e 5 i le 7 futu. E ta'ape solo timu. .ASO SA...Savili mai saute i sasa'e 15 note. Sami e 5 i le 7 futu. E ta'ape solo timu. .PO ASO SA...Savili mai saute i sasa'e 20 note. Sami e 5 i le 7 futu. E ta'ape solo timu. .ASO GAFUA...Savili mai saute i sasa'e 15 i le 20 note. Sami e 6 i le 8 futu. E ta'ape solo timu. .ASO LUA...Savili mai saute i sasa'e 20 i le 25 note. Sami e 6 i le 8 futu. E ta'ape solo timu. $$