144
FZUS51 KLWX 121737
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
136 PM EDT Sat Jul 12 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.

ANZ500-130800-
136 PM EDT Sat Jul 12 2025

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

High pressure will remain in place offshore through the upcoming
week. A weak cold front may move over the waters on Monday, before
stalling out and dissipating.

$$

ANZ535-130800-
Tidal Potomac from Key Bridge to Indian Head-
136 PM EDT Sat Jul 12 2025

.THIS AFTERNOON...SE winds 5 kt. Waves less than 1 ft. A slight
chance of showers and tstms.
.TONIGHT...SE winds around 5 kt. Waves 1 ft.
.SUN...SE winds around 5 kt. Waves 1 ft. A chance of showers and
tstms. Vsby 1 NM or less.
.SUN NIGHT...SE winds around 5 kt. Waves 1 ft. Showers likely with a
chance of tstms.
.MON...W winds around 5 kt. Waves 1 ft. A chance of showers and
tstms.
.MON NIGHT...S winds around 5 kt. Waves 1 ft or less.
.TUE...S winds around 5 kt. Waves 1 ft or less. A chance of showers
and tstms through the night.
.WED...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms
through the night.

Winds and waves higher and visibilities lower in and near tstms.

$$

ANZ536-130800-
Tidal Potomac from Indian Head to Cobb Island-
136 PM EDT Sat Jul 12 2025

.THIS AFTERNOON...SE winds 5 kt. Waves less than 1 ft. A slight
chance of showers and tstms.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.SUN...SE winds around 5 kt. Waves 1 ft. A chance of showers and
tstms. Vsby 1 NM or less.
.SUN NIGHT...SE winds around 5 kt. Waves 1 ft. Showers likely with a
chance of tstms.
.MON...NW winds around 5 kt. Waves 1 ft. A chance of showers and
tstms.
.MON NIGHT...S winds around 5 kt. Waves 1 ft or less.
.TUE...S winds around 5 kt. Waves 1 ft or less. A chance of showers
and tstms through the night.
.WED...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms
through the night.

Winds and waves higher and visibilities lower in and near tstms.

$$

ANZ537-130800-
Tidal Potomac from Cobb Island to Smith Point-
136 PM EDT Sat Jul 12 2025

.THIS AFTERNOON...SE winds 10 kt. Waves 1 ft or less. A slight
chance of showers and tstms.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.SUN...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms. Vsby 1 NM or less.
.SUN NIGHT...SE winds 5 to 10 kt. Waves 1 ft. Showers likely with a
chance of tstms.
.MON...S winds around 5 kt. Waves 1 ft or less. Showers likely with
a chance of tstms.
.MON NIGHT...S winds around 5 kt. Waves 1 ft or less. A chance of
showers and tstms.
.TUE...S winds around 5 kt. Waves 1 ft or less. A chance of showers
and tstms through the night.
.WED...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms through the night.

Winds and waves higher and visibilities lower in and near tstms.

$$

ANZ530-130800-
Chesapeake Bay north of Pooles Island-
136 PM EDT Sat Jul 12 2025

.THIS AFTERNOON...SE winds 5 kt. Waves flat. A slight chance of
showers and tstms.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 ft or less.
.SUN...SE winds 5 kt. Waves flat. A chance of showers and tstms.
Vsby 1 NM or less.
.SUN NIGHT...SE winds 5 kt. Waves flat. Showers likely with a chance
of tstms.
.MON...S winds around 5 kt. Waves flat. Showers likely with a chance
of tstms.
.MON NIGHT...SW winds around 5 kt. Waves flat.
.TUE...S winds around 5 kt. Waves flat.
.WED...S winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
and tstms through the night.

Winds and waves higher and visibilities lower in and near tstms.

$$

ANZ531-130800-
Chesapeake Bay from Pooles Island to Sandy Point-
136 PM EDT Sat Jul 12 2025

.THIS AFTERNOON...SE winds 5 kt. Waves flat. A slight chance of
showers and tstms.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.SUN...SE winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.SUN NIGHT...S winds 5 kt. Waves less than 1 ft. Showers likely with
a chance of tstms.
.MON...S winds around 5 kt. Waves flat. Showers likely with a chance
of tstms.
.MON NIGHT...S winds around 5 kt. Waves flat.
.TUE...S winds around 5 kt. Waves flat.
.WED...S winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
and tstms through the night.

Winds and waves higher and visibilities lower in and near tstms.

$$

ANZ538-130800-
Patapsco River including Baltimore Harbor-
136 PM EDT Sat Jul 12 2025

.THIS AFTERNOON...SE winds 5 kt. Waves flat. A slight chance of
showers and tstms.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.SUN...SE winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.SUN NIGHT...S winds around 5 kt. Waves 1 ft or less. Showers with a
chance of tstms.
.MON...S winds around 5 kt. Waves flat. A chance of showers and
tstms.
.MON NIGHT...S winds around 5 kt. Waves flat.
.TUE...S winds around 5 kt. Waves flat.
.WED...S winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
and tstms through the night.

Winds and waves higher and visibilities lower in and near tstms.

$$

ANZ539-130800-
Chester River to Queenstown MD-
136 PM EDT Sat Jul 12 2025

.THIS AFTERNOON...E winds 5 kt. Waves flat. A slight chance of
showers and tstms.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.SUN...SE winds 5 kt. Waves flat. A chance of showers and tstms.
.SUN NIGHT...S winds 5 kt. Waves less than 1 ft. Showers likely with
a chance of tstms.
.MON...S winds 5 kt. Waves flat. Showers likely with a chance of
tstms.
.MON NIGHT...S winds around 5 kt. Waves flat.
.TUE...SW winds around 5 kt. Waves flat. A chance of showers and
tstms through the night.
.WED...S winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
and tstms through the night.

Winds and waves higher and visibilities lower in and near tstms.

$$

ANZ532-130800-
Chesapeake Bay from Sandy Point to North Beach-
136 PM EDT Sat Jul 12 2025

.THIS AFTERNOON...SE winds 5 kt. Waves flat. A slight chance of
showers and tstms.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.SUN...SE winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers likely with a
chance of tstms.
.MON...S winds 5 kt. Waves less than 1 ft. Showers likely with a
chance of tstms.
.MON NIGHT...S winds 5 kt. Waves flat.
.TUE...S winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms through the night.
.WED...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms
through the night.

Winds and waves higher and visibilities lower in and near tstms.

$$

ANZ540-130800-
Eastern Bay-
136 PM EDT Sat Jul 12 2025

.THIS AFTERNOON...SE winds 5 kt. Waves flat. A slight chance of
showers and tstms.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.SUN...SE winds 5 kt. Waves flat. A chance of showers and tstms.
Vsby 1 to 3 NM.
.SUN NIGHT...S winds 5 kt. Waves less than 1 ft. Showers likely with
a chance of tstms.
.MON...S winds 5 kt. Waves flat. Showers likely with a chance of
tstms.
.MON NIGHT...S winds around 5 kt. Waves flat.
.TUE...SW winds around 5 kt. Waves flat. A chance of showers and
tstms through the night.
.WED...S winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
and tstms through the night.

Winds and waves higher and visibilities lower in and near tstms.

$$

ANZ533-130800-
Chesapeake Bay from North Beach to Drum Point-
136 PM EDT Sat Jul 12 2025

.THIS AFTERNOON...SE winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.SUN...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms. Vsby 1 to 3 NM.
.SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers likely with a
chance of tstms.
.MON...S winds around 5 kt. Waves 1 ft. A chance of showers and
tstms.
.MON NIGHT...S winds around 5 kt. Waves 1 ft or less.
.TUE...S winds 5 to 10 kt. Waves 1 ft or less.
.WED...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms
through the night.

Winds and waves higher and visibilities lower in and near tstms.

$$

ANZ541-130800-
Choptank River to Cambridge MD and the Little Choptank River-
136 PM EDT Sat Jul 12 2025

.THIS AFTERNOON...S winds 5 kt. Waves flat.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.SUN...SE winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms. Vsby 1 to 3 NM.
.SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers likely with a
chance of tstms.
.MON...S winds 5 kt. Waves flat. Showers likely with a chance of
tstms.
.MON NIGHT...S winds around 5 kt. Waves flat.
.TUE...S winds 5 kt. Waves less than 1 ft.
.WED...S winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
and tstms through the night.

Winds and waves higher and visibilities lower in and near tstms.

$$

ANZ542-130800-
Patuxent River to Broomes Island MD-
136 PM EDT Sat Jul 12 2025

.THIS AFTERNOON...SE winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.SUN...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.SUN NIGHT...SE winds 5 to 10 kt. Waves 1 ft. Showers likely with a
chance of tstms.
.MON...S winds around 5 kt. Waves 1 ft. A chance of showers and
tstms.
.MON NIGHT...S winds around 5 kt. Waves 1 ft. A chance of showers
and tstms.
.TUE...S winds around 5 kt. Waves 1 ft. A chance of showers and
tstms through the night.
.WED...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms
through the night.

Winds and waves higher and visibilities lower in and near tstms.

$$

ANZ534-130800-
Chesapeake Bay from Drum Point to Smith Point-
136 PM EDT Sat Jul 12 2025

.THIS AFTERNOON...SE winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.SUN...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SUN NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers
and tstms.
.MON...S winds 5 kt. Waves less than 1 ft. Showers likely with a
chance of tstms.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.TUE...S winds 5 to 10 kt. Waves 1 ft. A chance of showers. A chance
of tstms through the night.
.WED...SW winds 10 to 15 kt. Waves 1 to 2 ft.

Winds and waves higher and visibilities lower in and near tstms.

$$

ANZ543-130800-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
136 PM EDT Sat Jul 12 2025

.THIS AFTERNOON...S winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.SUN...SE winds 5 to 10 kt. Waves 1 ft or less.
.SUN NIGHT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers
and tstms.
.MON...S winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.TUE...SW winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
in the morning.
.WED...SW winds 10 to 15 kt. Waves 1 ft.

Winds and waves higher and visibilities lower in and near tstms.

$$