963
FZUS51 KLWX 151803
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
203 PM EDT Tue Jul 15 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.

ANZ500-160715-
203 PM EDT Tue Jul 15 2025

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

A frontal system will stall over the region into Wednesday morning
before dissipating. A cold front approaches from the west on Friday
evening before crossing the waters by early Saturday. Thereafter,
this front may stall nearby. Small Craft Advisories may be needed
Wednesday evening into Thursday, particularly across the southern
waters.

$$

ANZ535-160715-
Tidal Potomac from Key Bridge to Indian Head-
203 PM EDT Tue Jul 15 2025

.THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft. A chance of
showers and tstms. Vsby 1 NM or less.
.TONIGHT...S winds around 5 kt. Waves 1 ft. A chance of showers and
tstms.
.WED...S winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely.
Vsby 1 NM or less.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers and tstms
likely.
.THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.FRI...NW winds around 5 kt. Waves 1 ft. A chance of showers and
tstms through the night.
.SAT...SW 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.

$$

ANZ536-160715-
Tidal Potomac from Indian Head to Cobb Island-
203 PM EDT Tue Jul 15 2025

.THIS AFTERNOON...SE winds 5 kt. Waves less than 1 ft. A chance of
showers and tstms. Vsby 1 NM or less.
.TONIGHT...S winds around 5 kt. Waves 1 ft. A chance of showers and
tstms. Vsby 1 NM or less.
.WED...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms. Vsby 1 NM or less.
.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.
.THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.FRI...NW winds around 5 kt. Waves 1 ft. A chance of showers and
tstms through the night.
.SAT...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.

$$

ANZ537-160715-
Tidal Potomac from Cobb Island to Smith Point-
203 PM EDT Tue Jul 15 2025

.THIS AFTERNOON...SE winds 5 kt. Waves less than 1 ft. A chance of
showers and tstms. Vsby 1 NM or less.
.TONIGHT...S winds 5 kt. Waves less than 1 ft. A chance of showers
and tstms. Vsby 1 NM or less.
.WED...SW winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms. Vsby 1 NM or less.
.WED NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft. A chance of showers and tstms.
.THU...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.FRI...NW winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
and tstms.
.SAT...SE 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.

$$

ANZ530-160715-
Chesapeake Bay north of Pooles Island-
203 PM EDT Tue Jul 15 2025

.THIS AFTERNOON...S winds 5 kt. Waves flat. A slight chance of
showers and tstms.
.TONIGHT...S winds around 5 kt. Waves flat.
.WED...S winds 5 to 10 kt. Waves 1 ft or less. Showers and tstms
likely. Vsby 1 NM or less.
.WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft. Showers and tstms
likely.
.THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.THU NIGHT...W winds 5 to 10 kt. Waves 1 ft.
.FRI...NW winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms through the night.
.SAT...E winds 5 kt. Waves flat. A chance of showers in the
afternoon. A chance of showers and tstms through the night.

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

$$

ANZ531-160715-
Chesapeake Bay from Pooles Island to Sandy Point-
203 PM EDT Tue Jul 15 2025

.THIS AFTERNOON...S winds 5 kt. Waves flat. A chance of showers and
tstms.
.TONIGHT...S winds 5 kt. Waves less than 1 ft. A chance of showers
and tstms.
.WED...S winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely.
Vsby 1 NM or less.
.WED NIGHT...SW winds 10 kt. Waves 1 ft. Showers and tstms likely.
.THU...SW winds 10 kt. Waves 1 ft. A chance of showers and tstms.
.THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.FRI...NW winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms through the night.
.SAT...SE winds 5 kt. Waves less than 1 ft. A chance of showers in
the afternoon. A chance of showers and tstms through the night.

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

$$

ANZ538-160715-
Patapsco River including Baltimore Harbor-
203 PM EDT Tue Jul 15 2025

.THIS AFTERNOON...SE winds 5 kt. Waves flat. A chance of showers and
tstms.
.TONIGHT...S winds around 5 kt. Waves flat.
.WED...S winds 5 to 10 kt. Waves 1 ft or less. Showers and tstms
likely. Vsby 1 NM or less.
.WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft. Showers and tstms
likely.
.THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.THU NIGHT...W winds 5 to 10 kt. Waves 1 ft or less.
.FRI...NW winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms through the night.
.SAT...SE winds around 5 kt. Waves flat. A chance of showers in the
afternoon. A chance of showers and tstms through the night.

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

$$

ANZ539-160715-
Chester River to Queenstown MD-
203 PM EDT Tue Jul 15 2025

.THIS AFTERNOON...SW winds 5 kt. Waves flat. A chance of showers and
tstms. Vsby 1 NM or less.
.TONIGHT...S winds around 5 kt. Waves flat. A chance of showers and
tstms.
.WED...S winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely.
Vsby 1 NM or less.
.WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft. Showers and tstms
likely.
.THU...SW winds 10 kt. Waves 1 ft. A chance of showers.
.THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.FRI...NW winds around 5 kt. Waves 1 ft or less. A chance of showers
and tstms through the night.
.SAT...E winds 5 kt. Waves flat. A chance of showers in the
afternoon. A chance of showers and tstms through the night.

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

$$

ANZ532-160715-
Chesapeake Bay from Sandy Point to North Beach-
203 PM EDT Tue Jul 15 2025

.THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft. A chance of
showers and tstms.
.TONIGHT...S winds 5 kt. Waves less than 1 ft. A chance of showers
and tstms.
.WED...S winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely.
Vsby 1 NM or less.
.WED NIGHT...SW winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft.
Showers and tstms likely.
.THU...SW winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft. A chance
of showers.
.THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.FRI...NW winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
and tstms through the night.
.SAT...SE winds 5 kt. Waves less than 1 ft. A chance of showers in
the afternoon. A chance of showers and tstms through the night.

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

$$

ANZ540-160715-
Eastern Bay-
203 PM EDT Tue Jul 15 2025

.THIS AFTERNOON...SW winds 5 kt. Waves flat. A chance of showers and
tstms.
.TONIGHT...S winds 5 kt. Waves flat. A chance of showers and tstms.
.WED...S winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely.
Vsby 1 NM or less.
.WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft. Showers and tstms
likely.
.THU...SW winds 10 kt. Waves 1 ft. A chance of showers.
.THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.FRI...NW winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms through the night.
.SAT...E winds around 5 kt. Waves flat. A chance of showers in the
afternoon. A chance of showers and tstms through the night.

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

$$

ANZ533-160715-
Chesapeake Bay from North Beach to Drum Point-
203 PM EDT Tue Jul 15 2025

.THIS AFTERNOON...SE winds 5 kt. Waves less than 1 ft. A chance of
showers and tstms.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.WED...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms. Vsby 1 NM or less.
.WED NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft.
.THU...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.FRI...NW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms through the night.
.SAT...E 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.

$$

ANZ541-160715-
Choptank River to Cambridge MD and the Little Choptank River-
203 PM EDT Tue Jul 15 2025

.THIS AFTERNOON...SW winds 5 kt. Waves flat. A chance of showers and
tstms. Vsby 1 NM or less.
.TONIGHT...S winds 5 kt. Waves less than 1 ft. A chance of showers
and tstms.
.WED...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms. Vsby 1 NM or less.
.WED NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Showers and tstms likely.
.THU...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.FRI...NW winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
and tstms through the night.
.SAT...E winds 5 kt. Waves less than 1 ft. A chance of showers in
the afternoon. A chance of showers and tstms through the night.

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

$$

ANZ542-160715-
Patuxent River to Broomes Island MD-
203 PM EDT Tue Jul 15 2025

.THIS AFTERNOON...SE winds 5 kt. Waves less than 1 ft. A chance of
showers and tstms.
.TONIGHT...S winds around 5 kt. Waves 1 ft. A chance of showers and
tstms.
.WED...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers
and tstms.
.THU...SW winds 10 kt. Waves 1 ft.
.THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.FRI...NW winds around 5 kt. Waves 1 ft. A chance of showers and
tstms through the night.
.SAT...SE winds around 5 kt. Waves 1 ft. A chance of showers and
tstms.

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

$$

ANZ534-160715-
Chesapeake Bay from Drum Point to Smith Point-
203 PM EDT Tue Jul 15 2025

.THIS AFTERNOON...S winds 5 to 10 kt. Waves 1 ft. A chance of
showers and tstms.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.WED...SW winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers and
tstms.
.WED NIGHT...SW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. A
chance of showers and tstms.
.THU...SW winds 10 to 15 kt with gusts to 25 kt. Waves 2 to 3 ft.
.THU NIGHT...SW winds 10 to 15 kt. Waves 2 ft.
.FRI...NW winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers and
tstms.
.SAT...SE winds 5 kt...becoming S after midnight. Waves 1 ft. A
chance of showers and tstms.

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

$$

ANZ543-160715-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
203 PM EDT Tue Jul 15 2025

.THIS AFTERNOON...S winds 5 to 10 kt. Waves 1 ft. A chance of
showers and tstms.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms. Vsby 1 NM or less.
.WED...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms. Vsby 1 NM or less.
.WED NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Waves 1 to
2 ft. A chance of showers and tstms.
.THU...SW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.THU NIGHT...SW winds 10 to 15 kt. Waves 1 ft.
.FRI...NW winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
and tstms.
.SAT...S winds 5 kt...becoming 5 to 10 kt after midnight. 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.

$$