Coastal Waters Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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718 FZUS51 KLWX 010029 CWFLWX Coastal Waters Forecast National Weather Service Baltimore MD/Washington DC 828 PM EDT Sun Jun 30 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. ANZ500-010800- 828 PM EDT Sun Jun 30 2024 .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY... A cold front will move through the waters this evening. Showers and thunderstorms will develop during the afternoon to evening hours in association with the cold front. A strong area of high pressure settles over the region through Tuesday. Eventually a warm front approaches from the west before passing to the north on Wednesday. Small Craft Advisories are possible for portions of the waters Wednesday afternoon into Wednesday night. $$ ANZ535-010800- Tidal Potomac from Key Bridge to Indian Head- 828 PM EDT Sun Jun 30 2024 ...SEVERE THUNDERSTORM WATCH 491 IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON... .TONIGHT...W winds 5 kt...becoming N with gusts to 20 kt late this evening and overnight. Waves 1 ft. Numerous showers and tstms early this evening, then scattered showers and tstms after midnight. .MON...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .MON NIGHT...N winds 5 to 10 kt. Waves 1 ft. .TUE...E winds around 5 kt. Waves 1 ft. .TUE NIGHT...S winds around 5 kt. Waves 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. .THU...SW winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. .FRI...S winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ536-010800- Tidal Potomac from Indian Head to Cobb Island- 828 PM EDT Sun Jun 30 2024 ...SEVERE THUNDERSTORM WATCH 491 IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON... .TONIGHT...S winds 5 kt...becoming N 10 to 15 kt with gusts to 20 kt late this evening and overnight. Waves 1 ft. Numerous showers and tstms early this evening, then scattered showers and tstms after midnight. .MON...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. .MON NIGHT...N winds 5 to 10 kt. Waves 1 ft. .TUE...E winds around 5 kt. Waves 1 ft. .TUE NIGHT...SE winds around 5 kt. Waves 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. .THU...SW winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. .FRI...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. $$ ANZ537-010800- Tidal Potomac from Cobb Island to Smith Point- 828 PM EDT Sun Jun 30 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...SEVERE THUNDERSTORM WATCH 491 IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH MONDAY AFTERNOON... .TONIGHT...S winds 10 kt...becoming SW late this evening, then becoming N 20 kt with gusts to 25 kt after midnight. Waves 1 ft... building to 3 ft late. Widespread showers and tstms. .MON...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. .MON NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .TUE...E winds 5 to 10 kt. Waves 1 ft. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft or less. .WED NIGHT...S winds 10 to 15 kt. Waves 2 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ530-010800- Chesapeake Bay north of Pooles Island- 828 PM EDT Sun Jun 30 2024 ...SEVERE THUNDERSTORM WATCH 491 IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON... .TONIGHT...NW winds 10 to 15 kt with gusts to 20 kt... becoming N 20 kt with gusts to 25 kt after midnight. Waves 1 to 2 ft. Numerous showers and tstms early this evening, then scattered showers and tstms after midnight. .MON...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft. .MON NIGHT...N winds 5 to 10 kt. Waves 1 ft. .TUE...E winds 5 to 10 kt. Waves 1 ft. .TUE NIGHT...SE winds 5 kt. Waves less than 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. .THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI...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. $$ ANZ531-010800- Chesapeake Bay from Pooles Island to Sandy Point- 828 PM EDT Sun Jun 30 2024 ...SEVERE THUNDERSTORM WATCH 491 IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON... .TONIGHT...SW winds 10 kt...becoming N 15 to 20 kt with gusts to 25 kt late this evening and overnight. Waves 1 to 2 ft...building to 3 ft late. Numerous showers and tstms early this evening, then scattered showers and tstms after midnight. .MON...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. .MON NIGHT...N winds 10 to 15 kt. Waves 2 ft. .TUE...E winds 5 to 10 kt. Waves 1 ft or less. .TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...S winds 10 to 15 kt. Waves 2 ft. .THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI...S winds 5 to 10 kt. Waves 1 ft or less. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ538-010800- Patapsco River including Baltimore Harbor- 828 PM EDT Sun Jun 30 2024 ...SEVERE THUNDERSTORM WATCH 491 IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON... .TONIGHT...NW winds 5 to 10 kt with gusts to 20 kt... becoming N 15 kt with gusts to 20 kt after midnight. Waves 1 ft. Numerous showers and tstms early this evening, then scattered showers and tstms after midnight. .MON...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .MON NIGHT...N winds 5 to 10 kt. Waves 1 ft. .TUE...E winds 5 kt. Waves less than 1 ft. .TUE NIGHT...S winds 5 kt. Waves less than 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft or less. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. .THU...SW winds around 5 kt. Waves 1 ft or less. A chance of showers and tstms. .FRI...S winds around 5 kt. Waves flat. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ539-010800- Chester River to Queenstown MD- 828 PM EDT Sun Jun 30 2024 ...SEVERE THUNDERSTORM WATCH 491 IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON... .TONIGHT...S winds 10 kt...becoming NW 15 to 20 kt with gusts to 25 kt late this evening and overnight. Waves 1 to 2 ft...building to 3 ft late. Widespread showers and tstms early this evening, then scattered showers and tstms after midnight. .MON...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. .MON NIGHT...N winds 5 to 10 kt. Waves 1 to 2 ft. .TUE...NE winds 5 to 10 kt. Waves 1 ft or less. .TUE NIGHT...S winds 5 kt. Waves less than 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...S winds 10 to 15 kt. Waves 1 ft. .THU...SW winds 5 to 10 kt. Waves 1 ft or less. A chance of showers and tstms. .FRI...S winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ532-010800- Chesapeake Bay from Sandy Point to North Beach- 828 PM EDT Sun Jun 30 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...SEVERE THUNDERSTORM WATCH 491 IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH MONDAY AFTERNOON... .TONIGHT...S winds 10 kt...becoming NW 15 to 20 kt with gusts to 25 kt late this evening and overnight. Waves 1 to 2 ft...building to 3 ft late. Widespread showers and tstms early this evening, then scattered showers and tstms after midnight. .MON...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. .MON NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .TUE...NE winds 5 to 10 kt. Waves 1 ft. .TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. .WED...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves 1 to 2 ft. .WED NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI...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. $$ ANZ540-010800- Eastern Bay- 828 PM EDT Sun Jun 30 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...SEVERE THUNDERSTORM WATCH 491 IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH MONDAY AFTERNOON... .TONIGHT...S winds 10 kt...becoming NW late this evening, then becoming N 20 kt with gusts to 25 kt after midnight. Waves 1 to 2 ft. Widespread showers and tstms early this evening, then scattered showers and tstms after midnight. .MON...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. .MON NIGHT...N winds 5 to 10 kt. Waves 1 ft. .TUE...NE winds 5 to 10 kt. Waves 1 ft or less. .TUE NIGHT...SE winds 5 kt. Waves less than 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft or less. .WED NIGHT...S winds 10 to 15 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft or less. A chance of showers and tstms. .FRI...S winds 5 kt. Waves less than 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ533-010800- Chesapeake Bay from North Beach to Drum Point- 828 PM EDT Sun Jun 30 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...SEVERE THUNDERSTORM WATCH 491 IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH MONDAY AFTERNOON... .TONIGHT...S winds 10 kt...becoming W late this evening, then becoming N 20 kt with gusts to 30 kt after midnight. Waves 1 to 2 ft...building to 4 ft late. Widespread showers and tstms early this evening, then scattered showers and tstms after midnight. .MON...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. .MON NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .TUE...NE winds 5 to 10 kt. Waves 1 ft. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .WED...S winds 5 kt...increasing to 10 to 15 kt with gusts to 20 kt in the afternoon. Waves 1 to 2 ft. .WED NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI...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. $$ ANZ541-010800- Choptank River to Cambridge MD and the Little Choptank River- 828 PM EDT Sun Jun 30 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...SEVERE THUNDERSTORM WATCH 491 IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH MONDAY AFTERNOON... .TONIGHT...S winds 10 kt...becoming W late this evening, then becoming N 20 kt with gusts to 30 kt after midnight. Waves 1 to 2 ft...building to 3 ft late. Widespread showers and tstms. .MON...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. .MON NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .TUE...NE winds 5 to 10 kt. Waves 1 ft or less. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft or less. .WED NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI...S winds 5 to 10 kt. Waves 1 ft or less. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ542-010800- Patuxent River to Broomes Island MD- 828 PM EDT Sun Jun 30 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...SEVERE THUNDERSTORM WATCH 491 IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH MONDAY AFTERNOON... .TONIGHT...S winds 5 kt...becoming W late this evening, then becoming N with gusts to 25 kt after midnight. Waves 1 ft. Widespread showers and tstms. .MON...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. .MON NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves 1 ft. .TUE...E winds 5 kt. Waves less than 1 ft. .TUE NIGHT...SE winds around 5 kt. Waves 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. .THU...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. .FRI...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. $$ ANZ534-010800- Chesapeake Bay from Drum Point to Smith Point- 828 PM EDT Sun Jun 30 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...SEVERE THUNDERSTORM WATCH 491 IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH MONDAY AFTERNOON... .TONIGHT...S winds 10 kt with gusts to 20 kt...becoming N 20 to 25 kt with gusts to 30 kt after midnight. Waves 2 ft...building to 4 ft late. Widespread showers and tstms. .MON...N winds 15 to 20 kt with gusts to 30 kt. Waves 4 ft. .MON NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft. .TUE...E winds 5 to 10 kt. Waves 1 ft. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .WED...S winds 5 to 10 kt. Waves 1 to 2 ft. .WED NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 3 ft. .THU...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers and tstms through the night. .FRI...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms. $$ ANZ543-010800- Tangier Sound and the inland waters surrounding Bloodsworth Island- 828 PM EDT Sun Jun 30 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...SEVERE THUNDERSTORM WATCH 491 IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH MONDAY AFTERNOON... .TONIGHT...S winds 10 to 15 kt with gusts to 20 kt... becoming N 20 kt with gusts to 30 kt after midnight. Waves 1 to 2 ft. Widespread showers and tstms. .MON...N winds 15 to 20 kt. Gusts up to 30 kt... diminishing to 20 kt late. Waves 2 ft. .MON NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. .TUE...E winds 5 to 10 kt. Waves 1 ft. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft. .WED...S winds 5 to 10 kt. Waves 1 ft. .WED NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. .THU...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers and tstms through the night. .FRI...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. $$