Coastal Waters Forecast
Issued by NWS Sterling, VA

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FZUS51 KLWX 211135
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
735 AM EDT Sun Apr 21 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.

ANZ500-212000-
735 AM EDT Sun Apr 21 2024

.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...

High pressure will gradually push in from the west today while low
pressure passes well to the south. The high will move overhead
Monday and Tuesday. A cold front will cross the area Wednesday.
Small Craft Advisories will likely be needed Tuesday through
Thursday.

$$

ANZ535-212000-
Tidal Potomac from Key Bridge to Indian Head-
735 AM EDT Sun Apr 21 2024

.TODAY...N winds 5 kt. Waves less than 1 ft.
.TONIGHT...NW winds 5 kt. Waves less than 1 ft.
.MON...NW winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...W winds around 5 kt. Waves 1 ft or less.
.TUE...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves
1 ft.
.TUE NIGHT...S winds 10 kt with gusts to 20 kt. Waves 1 ft.
.WED...SW winds 10 to 15 kt...becoming NW. Waves 1 ft. A chance of
showers through the day.
.THU...N winds 5 to 10 kt. Waves 1 ft.

$$

ANZ536-212000-
Tidal Potomac from Indian Head to Cobb Island-
735 AM EDT Sun Apr 21 2024

.TODAY...N winds 5 to 10 kt. Waves 1 ft. A slight chance of rain.
.TONIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...SE winds around 5 kt. Waves 1 ft or less.
.TUE...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves
1 ft.
.TUE NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED...SW winds 10 to 15 kt...becoming NW. Waves 1 to 2 ft. A chance
of showers.
.THU...N winds 5 to 10 kt. Waves 1 ft.

$$

ANZ537-212000-
Tidal Potomac from Cobb Island to Smith Point-
735 AM EDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY
MORNING...

.TODAY...NE winds 10 to 15 kt with gusts to 20 kt... becoming N 5 kt
this afternoon. Waves 1 to 2 ft. A chance of rain.
.TONIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft.
.MON...N winds 5 to 10 kt. Gusts up to 20 kt until late afternoon.
Waves 1 to 2 ft.
.MON NIGHT...S winds around 5 kt. Waves 1 ft or less.
.TUE...SW winds 5 kt...becoming S 10 to 15 kt with gusts to 20 kt in
the afternoon. Waves flat...building to 2 ft in the afternoon.
.TUE NIGHT...S winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.WED...SW winds 10 to 15 kt...becoming NW. Waves 2 ft. A chance of
showers.
.THU...N winds 10 to 15 kt...becoming NE 5 to 10 kt after midnight.
Waves 1 to 2 ft.

$$

ANZ530-212000-
Chesapeake Bay north of Pooles Island-
735 AM EDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...

.TODAY...N winds 5 to 10 kt...becoming NW this afternoon. Waves
1 ft.
.TONIGHT...NW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.MON...NW winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...NE winds around 5 kt. Waves 1 ft or less.
.TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Waves 1 ft.
.TUE NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED...SW winds 10 to 15 kt...becoming NW. Waves 2 ft. A chance of
showers.
.THU...NW winds 10 to 15 kt. Waves 1 ft.

$$

ANZ531-212000-
Chesapeake Bay from Pooles Island to Sandy Point-
735 AM EDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...

.TODAY...N winds 10 kt...becoming NW this afternoon. Waves 1 ft.
.TONIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.MON...NW winds 5 to 10 kt. Waves 1 to 2 ft.
.MON NIGHT...W winds around 5 kt. Waves 1 ft or less.
.TUE...S winds 10 to 15 kt. Gusts up to 25 kt in the afternoon.
Waves 1 to 2 ft.
.TUE NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.WED...SW winds 10 to 15 kt...becoming NW after midnight. Waves
2 ft. A chance of showers.
.THU...N winds 10 to 15 kt. Waves 1 to 2 ft.

$$

ANZ538-212000-
Patapsco River including Baltimore Harbor-
735 AM EDT Sun Apr 21 2024

.TODAY...N winds 5 to 10 kt...becoming NW this afternoon. Waves 1 ft
or less.
.TONIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 5 kt. Waves less than 1 ft.
.MON NIGHT...W winds around 5 kt. Waves 1 ft or less.
.TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Waves 1 ft or less.
.TUE NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED...SW winds 10 to 15 kt...becoming NW. Waves 1 to 2 ft. A chance
of showers.
.THU...N winds 10 to 15 kt. Waves 1 ft.

$$

ANZ539-212000-
Chester River to Queenstown MD-
735 AM EDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...

.TODAY...N winds 5 to 10 kt...becoming NW this afternoon. Waves 1 ft
or less.
.TONIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the late
evening and overnight. Waves 2 ft.
.MON...NW winds 5 to 10 kt. Waves 1 to 2 ft.
.MON NIGHT...SW winds around 5 kt. Waves 1 ft or less.
.TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Waves 1 to 2 ft.
.TUE NIGHT...S winds 15 kt with gusts to 25 kt. Waves 2 ft.
.WED...SW winds 15 kt...becoming NW after midnight. Waves 2 to 3 ft.
A chance of showers.
.THU...NW winds 10 to 15 kt...becoming N after midnight. Waves 1 to
2 ft.

$$

ANZ532-212000-
Chesapeake Bay from Sandy Point to North Beach-
735 AM EDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...

.TODAY...N winds 5 to 10 kt. Gusts up to 20 kt early this morning.
Waves 1 to 2 ft. A slight chance of rain this afternoon.
.TONIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the late
evening and overnight. Waves 1 to 2 ft.
.MON...NW winds 5 to 10 kt. Waves 1 to 2 ft.
.MON NIGHT...SW winds 5 kt. Waves flat.
.TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Waves 1 to 2 ft.
.TUE NIGHT...S winds 15 kt with gusts to 25 kt. Waves 3 ft.
.WED...SW winds 15 kt...becoming N after midnight. Waves 2 to 3 ft.
A chance of showers.
.THU...N winds 10 to 15 kt. Waves 1 to 2 ft.

$$

ANZ540-212000-
Eastern Bay-
735 AM EDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...

.TODAY...N winds 5 to 10 kt. Waves 1 ft or less. A slight chance of
rain.
.TONIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.MON...NW winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...SW winds around 5 kt. Waves flat.
.TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Waves 1 ft.
.TUE NIGHT...S winds 15 kt with gusts to 25 kt. Waves 2 ft.
.WED...SW winds 15 kt...becoming N after midnight. Waves 2 ft. A
chance of showers.
.THU...NW winds 10 to 15 kt...becoming NE 5 to 10 kt after midnight.
Waves 1 to 2 ft.

$$

ANZ533-212000-
Chesapeake Bay from North Beach to Drum Point-
735 AM EDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY
MORNING...

.TODAY...N winds 5 to 10 kt. Gusts up to 20 kt early this morning.
Waves 1 to 2 ft. A slight chance of rain this morning, then a chance
of rain this afternoon.
.TONIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 1 to
2 ft.
.MON...N winds 10 to 15 kt with gusts to 20 kt... becoming NE 5 kt
late. Waves 1 to 2 ft.
.MON NIGHT...S winds 5 kt. Waves less than 1 ft.
.TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Waves 1 to 2 ft.
.TUE NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.WED...SW winds 15 kt...becoming N after midnight. Waves 2 to 3 ft.
A chance of showers.
.THU...N winds 10 to 15 kt...becoming NE 5 to 10 kt after midnight.
Waves 1 to 2 ft.

$$

ANZ541-212000-
Choptank River to Cambridge MD and the Little Choptank River-
735 AM EDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY
MORNING...

.TODAY...N winds 5 to 10 kt. Waves 1 ft or less. A slight chance of
rain this morning, then a chance of rain this afternoon.
.TONIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 1 to
2 ft.
.MON...N winds 10 to 15 kt with gusts to 20 kt... diminishing to
5 kt late. Waves 1 to 2 ft.
.MON NIGHT...SW winds around 5 kt. Waves flat.
.TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Waves 1 to 2 ft.
.TUE NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.WED...SW winds 15 kt...becoming NW. Waves 2 ft. A chance of
showers.
.THU...NW winds 10 to 15 kt...becoming NE 5 to 10 kt after midnight.
Waves 1 to 2 ft.

$$

ANZ542-212000-
Patuxent River to Broomes Island MD-
735 AM EDT Sun Apr 21 2024

.TODAY...NE winds 5 to 10 kt. Waves 1 ft. A chance of rain.
.TONIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.MON...N winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...S winds around 5 kt. Waves 1 ft.
.TUE...S winds 5 to 10 kt. Waves 1 ft.
.TUE NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED...SW winds 15 kt...becoming NW. Waves 1 ft. A chance of
showers.
.THU...N winds 10 to 15 kt...becoming NE 5 to 10 kt after midnight.
Waves 1 ft.

$$

ANZ534-212000-
Chesapeake Bay from Drum Point to Smith Point-
735 AM EDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY
MORNING...

.TODAY...NE winds 10 to 15 kt with gusts to 25 kt... becoming N 5 kt
this afternoon. Waves 2 to 3 ft...subsiding to 1 ft this afternoon.
A chance of rain.
.TONIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 1 ft...
building to 3 ft after midnight.
.MON...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft.
.MON NIGHT...SW winds 5 kt. Waves less than 1 ft.
.TUE...S winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft.
.TUE NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.WED...SW winds 15 to 20 kt...becoming N. Waves 3 ft. A chance of
showers.
.THU...N winds 10 to 15 kt...becoming NE 5 to 10 kt after midnight.
Waves 2 to 3 ft...subsiding to 1 ft after midnight.

$$

ANZ543-212000-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
735 AM EDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY
MORNING...

.TODAY...NE winds 10 to 15 kt with gusts to 20 kt... becoming N 5 kt
this afternoon. Waves 1 to 2 ft. A chance of rain. Vsby 1 to 3 NM
this afternoon.
.TONIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the late
evening and overnight. Waves 1 to 2 ft.
.MON...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.MON NIGHT...W winds 5 to 10 kt...becoming S after midnight. Waves
1 ft or less.
.TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Waves 1 ft.
.TUE NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Waves 2 to
3 ft.
.WED...SW winds 15 to 20 kt...becoming N. Waves 2 ft. A chance of
showers.
.THU...N winds 10 to 15 kt...becoming NE 5 to 10 kt after midnight.
Waves 1 to 2 ft.

$$
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