899
FZUS51 KLWX 140234
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1034 PM EDT Sun Jul 13 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.

ANZ500-140800-
1034 PM EDT Sun Jul 13 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 will approach the waters from the west early
 next week before moving through late Tuesday. This system stalls
nearby before returning northward as a warm front on Wednesday.
Small Craft Advisories may be needed Wednesday evening into
Thursday, particularly across the southern waters.

$$

ANZ535-140800-
Tidal Potomac from Key Bridge to Indian Head-
1034 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...S winds around 5 kt. Waves 1 ft or less.
Scattered showers and tstms.
.MON...S winds around 5 kt. Waves 1 ft. Showers and tstms likely.
Vsby 1 NM or less.
.MON NIGHT...S winds around 5 kt. Waves 1 ft or less. Showers likely
with a chance of tstms. Vsby 1 NM or less.
.TUE...S winds around 5 kt. Waves 1 ft or less. Showers likely with
a chance of tstms.
.TUE NIGHT...S winds around 5 kt. Waves 1 ft.
.WED...S winds around 5 kt. Waves 1 ft. Showers likely with a chance
of tstms.
.WED NIGHT...S winds 5 kt. Waves less than 1 ft.
.THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms through the night.
.FRI...W winds around 5 kt. Waves 1 ft. A chance of showers and
tstms.

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

$$

ANZ536-140800-
Tidal Potomac from Indian Head to Cobb Island-
1034 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...S winds 5 kt. Waves less than 1 ft. Scattered
tstms. Scattered showers. Vsby 1 to 3 NM.
.MON...SE winds around 5 kt. Waves 1 ft. Showers and tstms likely.
Vsby 1 NM or less.
.MON NIGHT...S winds around 5 kt. Waves 1 ft. Showers and tstms
likely. Vsby 1 NM or less.
.TUE...S winds around 5 kt. Waves 1 ft. Showers and tstms likely.
.TUE NIGHT...S winds around 5 kt. Waves 1 ft.
.WED...S winds 5 kt. Waves less than 1 ft. Showers likely with a
chance of tstms.
.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 through the night.
.FRI...W 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.

$$

ANZ537-140800-
Tidal Potomac from Cobb Island to Smith Point-
1034 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...S winds 5 to 10 kt. Waves 1 ft. Isolated tstms.
Isolated showers. Vsby 1 to 3 NM.
.MON...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms. Vsby 1 NM or less.
.MON NIGHT...S winds 5 kt. Waves less than 1 ft. Showers and tstms
likely. Vsby 1 NM or less.
.TUE...S winds 5 to 10 kt. Waves 1 ft or less. Showers and tstms
likely.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.WED...SW winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely.
.WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms through the night.
.FRI...W 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.

$$

ANZ530-140800-
Chesapeake Bay north of Pooles Island-
1034 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...SE winds 5 kt. Waves less than 1 ft. Isolated
showers and tstms late this evening, then scattered tstms with a
chance of showers with vsby 1 NM or less.
.MON...S winds around 5 kt. Waves 1 ft. Showers and tstms likely.
Vsby 1 NM or less.
.MON NIGHT...S winds around 5 kt. Waves 1 ft. Showers with tstms
likely. Vsby 1 NM or less.
.TUE...S winds around 5 kt. Waves 1 ft. Showers likely with a chance
of tstms.
.TUE NIGHT...S winds 5 kt. Waves less than 1 ft. A chance of showers
and tstms.
.WED...S winds 5 kt. Waves less than 1 ft. Showers likely with a
chance of tstms.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms through the night.
.FRI...W 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.

$$

ANZ531-140800-
Chesapeake Bay from Pooles Island to Sandy Point-
1034 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...S winds 5 kt. Waves less than 1 ft. Isolated
showers and tstms late this evening, then a chance of showers with a
slight chance of tstms. Vsby 1 NM or less.
.MON...S winds 5 kt. Waves less than 1 ft. Showers and tstms likely.
Vsby 1 NM or less.
.MON NIGHT...S winds around 5 kt. Waves 1 ft or less. Showers with
tstms likely. Vsby 1 NM or less.
.TUE...S winds around 5 kt. Waves 1 ft or less. Showers likely with
a chance of tstms.
.TUE NIGHT...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 likely with a chance
of tstms.
.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 through the night.
.FRI...W 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.

$$

ANZ538-140800-
Patapsco River including Baltimore Harbor-
1034 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...S winds 5 kt. Waves flat. Isolated showers and
tstms late this evening, then scattered tstms with a chance of
showers with vsby 1 NM or less.
.MON...SE winds 5 kt. Waves flat. Showers with tstms likely. Vsby
1 NM or less.
.MON NIGHT...S winds around 5 kt. Waves flat. Showers with tstms
likely. Vsby 1 NM or less.
.TUE...S winds around 5 kt. Waves flat. Showers likely with a chance
of tstms.
.TUE NIGHT...S winds around 5 kt. Waves flat. A chance of showers
and tstms.
.WED...S winds 5 to 10 kt. Waves 1 ft or less. Showers likely with a
chance of tstms.
.WED NIGHT...S winds 5 kt. Waves less than 1 ft.
.THU...SW winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms through the night.
.FRI...W 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.

$$

ANZ539-140800-
Chester River to Queenstown MD-
1034 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...SE winds 5 kt. Waves flat. Isolated showers and
tstms late this evening, then scattered tstms with a chance of
showers. Vsby 1 NM or less.
.MON...S winds 5 kt. Waves flat. Showers and tstms likely. Vsby 1 NM
or less.
.MON NIGHT...S winds around 5 kt. Waves flat. Showers and tstms
likely. Vsby 1 NM or less.
.TUE...S winds around 5 kt. Waves flat. Showers likely with a chance
of tstms.
.TUE NIGHT...S winds 5 kt. Waves flat. A chance of showers and
tstms.
.WED...S winds 5 kt. Waves less than 1 ft. Showers likely with a
chance of tstms.
.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 through the night.
.FRI...W 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.

$$

ANZ532-140800-
Chesapeake Bay from Sandy Point to North Beach-
1034 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...S winds 5 to 10 kt. Waves 1 ft. Scattered showers
and tstms. Vsby 1 NM or less.
.MON...S winds 5 kt. Waves less than 1 ft. Showers and tstms likely.
Vsby 1 NM or less.
.MON NIGHT...S winds 5 kt. Waves less than 1 ft. Showers and tstms
likely. Vsby 1 NM or less.
.TUE...S winds 5 kt. Waves less than 1 ft. Showers likely with a
chance of tstms.
.TUE NIGHT...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 likely with a chance
of tstms.
.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 through the night.
.FRI...W 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.

$$

ANZ540-140800-
Eastern Bay-
1034 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...SE winds 5 kt. Waves less than 1 ft. A slight
chance of showers and tstms. Vsby 1 NM or less.
.MON...S winds 5 kt. Waves flat. Showers and tstms likely. Vsby 1 NM
or less.
.MON NIGHT...S winds around 5 kt. Waves flat. Showers and tstms
likely. Vsby 1 NM or less.
.TUE...S winds around 5 kt. Waves flat. Showers likely with a chance
of tstms.
.TUE NIGHT...S winds 5 kt. Waves less than 1 ft. A chance of showers
and tstms.
.WED...S winds 5 kt. Waves less than 1 ft. Showers likely with a
chance of tstms.
.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 through the night.
.FRI...W 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.

$$

ANZ533-140800-
Chesapeake Bay from North Beach to Drum Point-
1034 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...S winds 5 to 10 kt. Waves 1 ft. Isolated tstms.
Isolated showers.
.MON...S winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms. Vsby 1 NM or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers likely with a
chance of tstms. Vsby 1 NM or less.
.TUE...S winds 5 to 10 kt. Waves 1 ft or less. Showers likely with a
chance of tstms.
.TUE NIGHT...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. Showers likely with a chance
of tstms.
.WED NIGHT...SW winds 10 kt. Waves 1 ft.
.THU...SW winds 10 kt. Waves 1 ft. A chance of showers and tstms
through the night.
.FRI...W 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.

$$

ANZ541-140800-
Choptank River to Cambridge MD and the Little Choptank River-
1034 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. Isolated tstms.
Isolated showers.
.MON...S winds 5 kt. Waves less than 1 ft. Showers and tstms likely.
Vsby 1 NM or less.
.MON NIGHT...S winds 5 kt. Waves less than 1 ft. Showers and tstms
likely. Vsby 1 NM or less.
.TUE...S winds 5 kt. Waves less than 1 ft. Showers likely with a
chance of tstms.
.TUE NIGHT...S winds 5 kt. Waves less than 1 ft. A chance of
showers.
.WED...S winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms.
.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 through the night.
.FRI...W 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.

$$

ANZ542-140800-
Patuxent River to Broomes Island MD-
1034 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...SE winds 5 kt. Waves less than 1 ft. Isolated
tstms. Isolated showers.
.MON...SE winds around 5 kt. Waves 1 ft. Showers and tstms likely.
Vsby 1 NM or less.
.MON NIGHT...S winds around 5 kt. Waves 1 ft. Showers and tstms
likely. Vsby 1 NM or less.
.TUE...S winds around 5 kt. Waves 1 ft. Showers and tstms likely.
.TUE NIGHT...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.
.WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms through the night.
.FRI...W 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.

$$

ANZ534-140800-
Chesapeake Bay from Drum Point to Smith Point-
1034 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms. Vsby 1 NM or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers and tstms
likely. Vsby 1 NM or less.
.TUE...S winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.WED...SW winds 10 kt. Waves 1 to 2 ft. Showers likely with a chance
of tstms.
.WED NIGHT...SW winds 10 to 15 kt. Waves 2 ft.
.THU...SW winds 10 to 15 kt. Waves 2 ft. A chance of showers and
tstms through the night.
.FRI...W winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers and
tstms.

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

$$

ANZ543-140800-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1034 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms. Vsby 1 NM or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers likely with a
chance of tstms. Vsby 1 NM or less.
.TUE...S winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.WED...SW winds 10 kt. Waves 1 ft. A chance of showers and tstms.
.WED NIGHT...SW winds 10 to 15 kt. Waves 1 ft. A chance of showers
and tstms.
.THU...SW winds 10 to 15 kt. Waves 1 ft. A chance of showers and
tstms through the night.
.FRI...W winds 10 to 15 kt. Waves 1 ft. A chance of showers and
tstms.

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

$$