940
FZUS51 KLWX 150234
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1034 PM EDT Mon Jul 14 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.

ANZ500-150800-
1034 PM EDT Mon Jul 14 2025

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

High pressure will remain in place offshore through the week. A weak
 cold front will approach the waters from the west today 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.

$$

ANZ535-150800-
Tidal Potomac from Key Bridge to Indian Head-
1034 PM EDT Mon Jul 14 2025

.REST OF TONIGHT...Light winds. Waves flat. Numerous showers and
scattered tstms late this evening, then scattered tstms with a
chance of showers. Patchy fog. Vsby 1 NM or less.
.TUE...E winds around 5 kt. Waves 1 ft or less. Showers likely with
a chance of tstms. Patchy fog. Vsby 1 NM or less.
.TUE NIGHT...S winds around 5 kt. Waves 1 ft. Showers likely with a
chance of tstms. Vsby 1 NM or less.
.WED...S winds around 5 kt. Waves 1 ft. Showers likely with a chance
of tstms.
.WED NIGHT...SW winds 5 kt. Waves less than 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...W winds around 5 kt. Waves 1 ft. A chance of showers and
tstms through the night.
.SAT...E winds around 5 kt. Waves 1 ft. A chance of showers and
tstms.

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

$$

ANZ536-150800-
Tidal Potomac from Indian Head to Cobb Island-
1034 PM EDT Mon Jul 14 2025

.REST OF TONIGHT...SW winds 5 kt. Waves less than 1 ft. Numerous
showers and scattered tstms late this evening, then scattered tstms
with a chance of showers. Patchy fog. Vsby 1 NM or less.
.TUE...SW winds around 5 kt. Waves 1 ft or less. Showers likely with
a chance of tstms. Patchy fog. Vsby 1 NM or less.
.TUE NIGHT...S winds around 5 kt. Waves 1 ft.
.WED...SW winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms.
.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.
.THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.FRI...W winds around 5 kt. Waves 1 ft. A chance of showers and
tstms.
.SAT...N winds around 5 kt. Waves 1 ft. A chance of showers and
tstms.

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

$$

ANZ537-150800-
Tidal Potomac from Cobb Island to Smith Point-
1034 PM EDT Mon Jul 14 2025

.REST OF TONIGHT...S winds 5 kt. Waves less than 1 ft. Scattered
showers and tstms late this evening, then numerous showers with a
chance of tstms. Patchy fog. Vsby 1 NM or less.
.TUE...S winds around 5 kt. Waves 1 ft or less. Showers and tstms
likely. Patchy fog. Vsby 1 NM or less.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers and tstms
likely. Vsby 1 NM or less.
.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.
.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...W winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
and tstms.
.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.

$$

ANZ530-150800-
Chesapeake Bay north of Pooles Island-
1034 PM EDT Mon Jul 14 2025

.REST OF TONIGHT...N winds 5 kt. Waves flat. Numerous showers and
scattered tstms late this evening, then scattered tstms with a
chance of showers. Patchy fog. Vsby 1 NM or less.
.TUE...E winds around 5 kt. Waves flat. Showers likely with a chance
of tstms. Patchy fog. Vsby 1 NM or less.
.TUE NIGHT...S winds 5 kt. Waves flat. A chance of showers and
tstms. Vsby 1 NM or less.
.WED...S winds 5 to 10 kt. Waves 1 ft or less. Showers likely with a
chance of tstms.
.WED NIGHT...SW 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.
.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...W winds 5 kt. Waves flat. A chance of showers and tstms.

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

$$

ANZ531-150800-
Chesapeake Bay from Pooles Island to Sandy Point-
1034 PM EDT Mon Jul 14 2025

.REST OF TONIGHT...W winds 5 kt. Waves flat. Numerous showers and
scattered tstms late this evening, then scattered tstms with a
chance of showers. Patchy fog. Vsby 1 NM or less.
.TUE...E winds around 5 kt. Waves flat. Showers likely with a chance
of tstms. Patchy fog. Vsby 1 NM or less.
.TUE NIGHT...S winds 5 kt. Waves less than 1 ft. A chance of showers
and tstms. Vsby 1 NM or less.
.WED...S winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms.
.WED NIGHT...SW 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.
.THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.FRI...W winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.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.

$$

ANZ538-150800-
Patapsco River including Baltimore Harbor-
1034 PM EDT Mon Jul 14 2025

.REST OF TONIGHT...SW winds around 5 kt. Waves flat. Numerous
showers and scattered tstms late this evening, then scattered tstms
with a chance of showers. Patchy fog. Vsby 1 NM or less...increasing
to 1 to 3 NM.
.TUE...E winds around 5 kt. Waves flat. Showers likely with a chance
of tstms. Patchy fog. Vsby 1 to 3 NM.
.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...SW 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.
.THU NIGHT...SW winds 5 kt. Waves less than 1 ft.
.FRI...W winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.SAT...SE winds around 5 kt. Waves flat. A chance of showers and
tstms.

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

$$

ANZ539-150800-
Chester River to Queenstown MD-
1034 PM EDT Mon Jul 14 2025

.REST OF TONIGHT...S winds 5 kt. Waves flat. Scattered tstms.
Numerous showers late this evening, then a chance of showers. Patchy
fog. Vsby 1 NM or less.
.TUE...SW winds around 5 kt. Waves flat. Showers likely with a
chance of tstms. Vsby 1 NM or less.
.TUE NIGHT...S winds 5 kt. Waves flat. A chance of showers and
tstms. Vsby 1 NM or less.
.WED...S winds 5 kt. Waves less than 1 ft. Showers likely with a
chance of tstms.
.WED NIGHT...SW 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.
.THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.FRI...W winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.SAT...SW 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.

$$

ANZ532-150800-
Chesapeake Bay from Sandy Point to North Beach-
1034 PM EDT Mon Jul 14 2025

.REST OF TONIGHT...S winds 5 kt. Waves less than 1 ft. Scattered
tstms. Numerous showers late this evening, then a chance of showers.
Patchy fog. Vsby 1 NM or less.
.TUE...SW winds around 5 kt. Waves 1 ft or less. Showers likely with
a chance of tstms. Vsby 1 to 3 NM.
.TUE NIGHT...S winds 5 kt. Waves less than 1 ft. Showers likely with
a chance of 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. A chance of showers and
tstms.
.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...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.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.

$$

ANZ540-150800-
Eastern Bay-
1034 PM EDT Mon Jul 14 2025

.REST OF TONIGHT...S winds 5 kt. Waves flat. Scattered tstms.
Numerous showers. Patchy fog. Vsby 1 NM or less.
.TUE...SW winds around 5 kt. Waves flat. Showers likely with a
chance of tstms. Vsby 1 to 3 NM.
.TUE NIGHT...S winds 5 kt. Waves less than 1 ft. Showers likely with
a chance of tstms.
.WED...S winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms.
.WED NIGHT...SW 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.
.THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.FRI...W winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.SAT...SW winds 5 kt. Waves flat. A chance of showers and tstms.

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

$$

ANZ533-150800-
Chesapeake Bay from North Beach to Drum Point-
1034 PM EDT Mon Jul 14 2025

.REST OF TONIGHT...S winds 5 kt. Waves less than 1 ft. Numerous
showers and tstms late this evening, then numerous showers with a
chance of tstms. Patchy fog. Vsby 1 NM or less.
.TUE...S winds around 5 kt. Waves 1 ft. Showers likely with a chance
of tstms. Vsby 1 NM or less.
.TUE NIGHT...S winds 5 to 10 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. 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.
.THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.FRI...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.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.

$$

ANZ541-150800-
Choptank River to Cambridge MD and the Little Choptank River-
1034 PM EDT Mon Jul 14 2025

.REST OF TONIGHT...S winds 5 kt. Waves less than 1 ft. Numerous
showers and tstms late this evening, then numerous showers with a
chance of tstms. Patchy fog. Vsby 1 NM or less.
.TUE...SW winds around 5 kt. Waves flat. Showers likely with a
chance of tstms. Vsby 1 NM or less.
.TUE NIGHT...S winds 5 kt. Waves less than 1 ft. Showers likely with
a chance of tstms.
.WED...SW 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.
.THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.FRI...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.SAT...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.

$$

ANZ542-150800-
Patuxent River to Broomes Island MD-
1034 PM EDT Mon Jul 14 2025

.REST OF TONIGHT...S winds 5 kt. Waves less than 1 ft. Numerous
showers and tstms late this evening, then numerous showers with a
chance of tstms. Patchy fog. Vsby 1 NM or less.
.TUE...S winds around 5 kt. Waves 1 ft. Showers likely with a chance
of tstms. Vsby 1 NM or less.
.TUE NIGHT...S winds 5 kt. Waves less than 1 ft. Showers and tstms
likely.
.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.
.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...W winds around 5 kt. Waves 1 ft. A chance of showers and
tstms.
.SAT...E winds around 5 kt. Waves 1 ft. A chance of showers and
tstms.

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

$$

ANZ534-150800-
Chesapeake Bay from Drum Point to Smith Point-
1034 PM EDT Mon Jul 14 2025

.REST OF TONIGHT...S winds 10 kt. Waves 1 ft. Scattered showers and
tstms late this evening, then showers likely with a chance of tstms.
Patchy fog. Vsby 1 NM or less.
.TUE...S winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely.
Vsby 1 NM or less.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers and tstms
likely. Vsby 1 NM or less.
.WED...SW winds 10 kt. Waves 1 to 2 ft. A chance of showers and
tstms.
.WED NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.THU...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.THU NIGHT...SW winds 10 kt. Waves 2 ft.
.FRI...W winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers and
tstms.
.SAT...NW 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.

$$

ANZ543-150800-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1034 PM EDT Mon Jul 14 2025

.REST OF TONIGHT...S winds 10 kt. Waves 1 ft. Scattered showers and
tstms late this evening, then showers likely with a chance of tstms.
Patchy fog. Vsby 1 NM or less.
.TUE...SW winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely.
Vsby 1 NM or less.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms. Vsby 1 NM or less.
.WED...SW winds 10 to 15 kt. Waves 1 ft. A chance of showers and
tstms.
.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 1 to 2 ft.
.THU NIGHT...SW winds 10 to 15 kt. Waves 1 ft.
.FRI...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.SAT...SW winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms through the night.

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

$$