829
FZUS51 KLWX 040834
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
434 AM EDT Sat Oct 4 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.

ANZ500-042300-
434 AM EDT Sat Oct 4 2025

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

High pressure will build offshore this weekend. A cold front will
approach from the northwest during the middle of next week. Small
Craft Advisories may be needed Tuesday into Wednesday.

$$

ANZ535-042300-
Tidal Potomac from Key Bridge to Indian Head-
434 AM EDT Sat Oct 4 2025

.REST OF THE OVERNIGHT...Light winds. Waves flat.
.TODAY...SW winds around 5 kt. Waves 1 ft or less.
.TONIGHT...S winds around 5 kt. Waves 1 ft or less.
.SUN...S winds around 5 kt. Waves 1 ft or less. Patchy fog.
.SUN NIGHT...S winds around 5 kt. Waves 1 ft.
.MON...S winds around 5 kt. Waves 1 ft.
.MON NIGHT...S winds 5 kt. Waves less than 1 ft.
.TUE...S winds 5 to 10 kt. Waves 1 ft. A chance of showers through
the night.
.WED...N winds 5 to 10 kt. Waves 1 ft. Showers likely through the
day. A chance of showers in the evening.

$$

ANZ536-042300-
Tidal Potomac from Indian Head to Cobb Island-
434 AM EDT Sat Oct 4 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves flat.
.TODAY...S winds around 5 kt. Waves 1 ft or less.
.TONIGHT...S winds around 5 kt. Waves 1 ft.
.SUN...S winds around 5 kt. Waves 1 ft or less.
.SUN NIGHT...S winds around 5 kt. Waves 1 ft.
.MON...S winds around 5 kt. Waves 1 ft.
.MON NIGHT...S winds 5 kt. Waves less than 1 ft.
.TUE...S winds 5 to 10 kt. Waves 1 ft. A chance of showers after
midnight.
.WED...NW winds 5 to 10 kt...becoming N 10 to 15 kt. Waves 1 ft.
Showers likely through the day. A chance of showers in the evening.

$$

ANZ537-042300-
Tidal Potomac from Cobb Island to Smith Point-
434 AM EDT Sat Oct 4 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves flat.
.TODAY...SW winds around 5 kt. Waves flat.
.TONIGHT...S winds around 5 kt. Waves flat.
.SUN...S winds around 5 kt. Waves 1 ft or less.
.SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 5 to 10 kt. Waves 1 ft. A chance of showers after
midnight.
.WED...W winds 10 to 15 kt...becoming N 20 to 25 kt. Waves 1 to
2 ft...building to 3 ft. Showers likely. A chance of showers after
midnight.

$$

ANZ530-042300-
Chesapeake Bay north of Pooles Island-
434 AM EDT Sat Oct 4 2025

.REST OF THE OVERNIGHT...W winds 5 kt. Waves flat.
.TODAY...SW winds around 5 kt. Waves 1 ft.
.TONIGHT...SW winds around 5 kt. Waves 1 ft or less.
.SUN...SW winds around 5 kt. Waves 1 ft or less.
.SUN NIGHT...S winds around 5 kt. Waves 1 ft.
.MON...S winds around 5 kt. Waves 1 ft.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 ft. A chance of showers in the
evening. Showers likely after midnight.
.WED...NW winds 5 to 10 kt...becoming N 15 to 20 kt. Waves 1 ft.
Showers likely through the day, then a chance of showers in the
evening.

$$

ANZ531-042300-
Chesapeake Bay from Pooles Island to Sandy Point-
434 AM EDT Sat Oct 4 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves flat.
.TODAY...SW winds around 5 kt. Waves 1 ft or less.
.TONIGHT...SW winds around 5 kt. Waves 1 ft or less.
.SUN...SW winds around 5 kt. Waves 1 ft or less.
.SUN NIGHT...S winds 5 kt. Waves less than 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers in
the evening. Showers likely after midnight.
.WED...NW winds 10 to 15 kt...becoming N 15 to 20 kt. Waves 1 to
2 ft. Showers likely through the day, then a chance of showers in
the evening.

$$

ANZ538-042300-
Patapsco River including Baltimore Harbor-
434 AM EDT Sat Oct 4 2025

.REST OF THE OVERNIGHT...W winds 5 kt. Waves flat.
.TODAY...S winds around 5 kt. Waves flat.
.TONIGHT...SW winds around 5 kt. Waves flat.
.SUN...S winds around 5 kt. Waves flat.
.SUN NIGHT...S winds around 5 kt. Waves flat.
.MON...S winds around 5 kt. Waves 1 ft or less.
.MON NIGHT...S winds 5 kt. Waves less than 1 ft.
.TUE...S winds 5 to 10 kt. Waves 1 ft. A chance of showers in the
evening. Showers likely after midnight.
.WED...NW winds 10 to 15 kt...becoming N. Waves 1 ft. Showers likely
through the day, then a chance of showers in the evening.

$$

ANZ539-042300-
Chester River to Queenstown MD-
434 AM EDT Sat Oct 4 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves flat.
.TODAY...SW winds around 5 kt. Waves flat.
.TONIGHT...SW winds around 5 kt. Waves flat.
.SUN...SW winds around 5 kt. Waves flat.
.SUN NIGHT...S winds around 5 kt. Waves flat.
.MON...S winds around 5 kt. Waves 1 ft or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 5 to 10 kt. Waves 1 ft. A chance of showers in the
evening. Showers likely after midnight.
.WED...NW winds 5 to 10 kt...becoming N 10 to 15 kt. Waves 1 to
2 ft. Showers likely through the day, then a chance of showers in
the evening.

$$

ANZ532-042300-
Chesapeake Bay from Sandy Point to North Beach-
434 AM EDT Sat Oct 4 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves less than 1 ft.
.TODAY...SW winds 5 kt. Waves less than 1 ft.
.TONIGHT...SW winds 5 kt. Waves less than 1 ft.
.SUN...SW winds around 5 kt. Waves 1 ft or less.
.SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers
through the night.
.WED...NW winds 10 to 15 kt...becoming N 20 to 25 kt. Waves 1 to
2 ft...building to 3 ft. Showers likely through the day, then a
chance of showers in the evening.

$$

ANZ540-042300-
Eastern Bay-
434 AM EDT Sat Oct 4 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves flat.
.TODAY...SW winds 5 kt. Waves flat.
.TONIGHT...SW winds around 5 kt. Waves flat.
.SUN...SW winds around 5 kt. Waves flat.
.SUN NIGHT...S winds around 5 kt. Waves flat.
.MON...S winds around 5 kt. Waves 1 ft or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 ft. A chance of showers through
the night.
.WED...NW winds 10 to 15 kt...becoming N 15 to 20 kt. Waves 1 to
2 ft. Showers likely through the day, then a chance of showers in
the evening.

$$

ANZ533-042300-
Chesapeake Bay from North Beach to Drum Point-
434 AM EDT Sat Oct 4 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves less than 1 ft.
.TODAY...SW winds around 5 kt. Waves flat.
.TONIGHT...SW winds 5 kt. Waves less than 1 ft.
.SUN...SW winds around 5 kt. Waves 1 ft or less.
.SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers
after midnight.
.WED...W winds 10 kt...becoming N 15 to 20 kt in the afternoon and
evening, then increasing to 20 to 25 kt after midnight. Waves 1 ft...
building to 3 ft. Showers likely through the day, then a chance of
showers in the evening.

$$

ANZ541-042300-
Choptank River to Cambridge MD and the Little Choptank River-
434 AM EDT Sat Oct 4 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves flat.
.TODAY...SW winds around 5 kt. Waves flat.
.TONIGHT...SW winds around 5 kt. Waves 1 ft.
.SUN...SW winds around 5 kt. Waves flat.
.SUN NIGHT...S winds around 5 kt. Waves 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 ft. A chance of showers after
midnight.
.WED...W winds 10 to 15 kt...becoming N 20 to 25 kt. Waves 1 to
2 ft. Showers likely through the day, then a chance of showers in
the evening.

$$

ANZ542-042300-
Patuxent River to Broomes Island MD-
434 AM EDT Sat Oct 4 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves less than 1 ft.
.TODAY...SW winds around 5 kt. Waves 1 ft.
.TONIGHT...S winds around 5 kt. Waves 1 ft.
.SUN...S winds around 5 kt. Waves 1 ft.
.SUN NIGHT...S winds around 5 kt. Waves 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 5 to 10 kt. Waves 1 ft. A chance of showers after
midnight.
.WED...NW winds 10 to 15 kt...becoming N. Waves 1 ft. Showers
likely.

$$

ANZ534-042300-
Chesapeake Bay from Drum Point to Smith Point-
434 AM EDT Sat Oct 4 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves flat.
.TODAY...SW winds around 5 kt. Waves flat.
.TONIGHT...S winds 5 kt. Waves less than 1 ft.
.SUN...SW winds around 5 kt. Waves 1 ft or less.
.SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers
after midnight.
.WED...SW winds 10 kt...becoming NW 15 to 20 kt in the afternoon,
then becoming N 20 to 25 kt. Waves 2 to 3 ft...building to 4 ft.
Showers likely. A chance of showers after midnight.

$$

ANZ543-042300-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
434 AM EDT Sat Oct 4 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves flat.
.TODAY...W winds around 5 kt. Waves flat.
.TONIGHT...S winds around 5 kt. Waves flat.
.SUN...SW winds around 5 kt. Waves flat.
.SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers
after midnight.
.WED...W winds 10 to 15 kt...becoming N 20 to 25 kt. Waves 1 to
2 ft. Showers likely. A chance of showers after midnight.

$$