Coastal Waters Forecast
Issued by NWS Sterling, VA

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
241
FZUS51 KLWX 140835
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
435 AM EDT Wed May 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.

ANZ500-142300-
435 AM EDT Wed May 14 2025

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

Low pressure will approach from the southwest today, eventually
moving east of the area by late Thursday. Another low pressure
system will quickly approach the area Friday into Saturday.

$$

ANZ535-142300-
Tidal Potomac from Key Bridge to Indian Head-
435 AM EDT Wed May 14 2025

.REST OF THE OVERNIGHT...NE winds 5 kt. Waves less than 1 ft. A
chance of showers. Patchy fog. Vsby 1 to 3 NM.
.TODAY...E winds 5 kt. Waves less than 1 ft. A chance of showers.
Patchy fog. Vsby 1 NM or less.
.TONIGHT...SE winds around 5 kt. Waves 1 ft. Showers likely with a
chance of tstms. Patchy fog. Vsby 1 to 3 NM.
.THU...S winds around 5 kt. Waves 1 ft or less. A chance of showers.
Patchy fog.
.THU NIGHT...S winds around 5 kt. Waves 1 ft or less. A chance of
showers and tstms.
.FRI...SW winds around 5 kt. Waves 1 ft. A chance of showers and
tstms.
.FRI NIGHT...SW winds around 5 kt. Waves 1 ft. A chance of showers
and tstms.
.SAT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers through
the night.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.

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

$$

ANZ536-142300-
Tidal Potomac from Indian Head to Cobb Island-
435 AM EDT Wed May 14 2025

.REST OF THE OVERNIGHT...E winds 5 kt. Waves less than 1 ft. A
chance of showers. Patchy fog. Vsby 1 to 3 NM.
.TODAY...E winds 5 kt. Waves less than 1 ft. A chance of tstms.
Patchy fog. Vsby 1 NM or less.
.TONIGHT...SE winds 5 kt. Waves less than 1 ft. Showers likely with
a chance of tstms. Patchy fog. Vsby 1 NM or less.
.THU...SW winds around 5 kt. Waves 1 ft.
.THU NIGHT...S winds around 5 kt. Waves 1 ft. A chance of showers
and tstms.
.FRI...SW winds around 5 kt. Waves 1 ft. A chance of showers and
tstms.
.FRI NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of
showers and tstms.
.SAT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers through
the night.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.

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

$$

ANZ537-142300-
Tidal Potomac from Cobb Island to Smith Point-
435 AM EDT Wed May 14 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT EARLY THIS
MORNING...

.REST OF THE OVERNIGHT...SE winds 10 kt. Waves 2 ft. A slight chance
of showers. Patchy fog. Vsby 1 to 3 NM.
.TODAY...SE winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers.
Patchy fog. Vsby 1 NM or less.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers likely with a
chance of tstms. Vsby 1 NM or less.
.THU...S winds around 5 kt. Waves 1 ft or less. A chance of showers.
.THU NIGHT...S winds 5 kt. Waves less than 1 ft. A chance of showers
and tstms.
.FRI...SW winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
and tstms.
.FRI NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.SAT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers through
the night.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.

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

$$

ANZ530-142300-
Chesapeake Bay north of Pooles Island-
435 AM EDT Wed May 14 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY...

.REST OF THE OVERNIGHT...E winds 20 kt with gusts to 30 kt. Waves
2 ft. Showers. Patchy fog. Vsby 1 to 3 NM.
.TODAY...E winds 15 to 20 kt with gusts to 25 kt... diminishing to
5 to 10 kt in the afternoon. Waves 1 to 2 ft. Showers likely. Patchy
fog. Vsby 1 NM or less.
.TONIGHT...E winds 5 kt. Waves less than 1 ft. Showers likely with a
chance of tstms. Patchy fog. Vsby 1 NM or less.
.THU...SE winds around 5 kt. Waves 1 ft. A chance of showers. Patchy
fog.
.THU NIGHT...Light winds. Waves flat.
.FRI...S winds around 5 kt. Waves 1 ft. Showers likely with a chance
of tstms.
.FRI NIGHT...SW winds around 5 kt. Waves 1 ft. A chance of showers
and tstms.
.SAT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers through
the day.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.

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

$$

ANZ531-142300-
Chesapeake Bay from Pooles Island to Sandy Point-
435 AM EDT Wed May 14 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY...

.REST OF THE OVERNIGHT...E winds 20 kt with gusts to 25 kt. Waves
3 ft. Showers likely. Patchy fog. Vsby 1 to 3 NM.
.TODAY...E winds 10 to 15 kt with gusts to 25 kt... diminishing to
5 kt late. Waves 1 to 2 ft. Showers likely. Patchy fog. Vsby 1 to
3 NM.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft or less. Showers likely
with a chance of tstms. Patchy fog. Vsby 1 to 3 NM.
.THU...S winds around 5 kt. Waves flat. A chance of showers. Patchy
fog.
.THU NIGHT...S winds around 5 kt. Waves flat.
.FRI...S winds around 5 kt. Waves 1 ft or less. Showers likely with
a chance of tstms.
.FRI NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of
showers and tstms.
.SAT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.

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

$$

ANZ538-142300-
Patapsco River including Baltimore Harbor-
435 AM EDT Wed May 14 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY...

.REST OF THE OVERNIGHT...E winds 15 kt with gusts to 25 kt. Waves
2 ft. Showers likely. Patchy fog. Vsby 1 to 3 NM.
.TODAY...E winds 10 to 15 kt with gusts to 20 kt... diminishing to
5 kt in the afternoon. Waves 1 to 2 ft. Showers likely. Patchy fog.
Vsby 1 to 3 NM.
.TONIGHT...E winds 5 kt. Waves less than 1 ft. Showers likely with a
chance of tstms. Patchy fog. Vsby 1 to 3 NM.
.THU...SE winds around 5 kt. Waves flat. A chance of showers. Patchy
fog.
.THU NIGHT...SE winds around 5 kt. Waves flat.
.FRI...S winds around 5 kt. Waves 1 ft or less. Showers likely with
a chance of tstms.
.FRI NIGHT...SW winds around 5 kt. Waves flat. A chance of showers
and tstms.
.SAT...SW winds 5 to 10 kt. Waves 1 ft or less. A chance of showers.
.SUN...NW winds 5 to 10 kt. Waves 1 ft or less.

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

$$

ANZ539-142300-
Chester River to Queenstown MD-
435 AM EDT Wed May 14 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY...

.REST OF THE OVERNIGHT...E winds 15 kt with gusts to 25 kt. Waves
2 ft. Showers likely. Patchy fog. Vsby 1 to 3 NM.
.TODAY...E winds 10 to 15 kt with gusts to 20 kt... diminishing to
5 kt in the afternoon. Waves 1 to 2 ft. Showers likely. Patchy fog.
Vsby 1 NM or less.
.TONIGHT...SE winds 5 kt. Waves flat. Showers likely with a chance
of tstms. Patchy fog. Vsby 1 to 3 NM.
.THU...S winds around 5 kt. Waves flat. A chance of showers. Patchy
fog.
.THU NIGHT...S winds around 5 kt. Waves flat.
.FRI...S winds around 5 kt. Waves 1 ft or less. Showers likely with
a chance of tstms.
.FRI NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of
showers and tstms.
.SAT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SUN...NW winds 5 to 10 kt. Waves 1 to 2 ft.

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

$$

ANZ532-142300-
Chesapeake Bay from Sandy Point to North Beach-
435 AM EDT Wed May 14 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY...

.REST OF THE OVERNIGHT...E winds 15 kt with gusts to 25 kt. Waves
3 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM.
.TODAY...SE winds 10 to 15 kt with gusts to 20 kt... diminishing to
5 kt in the afternoon. Waves 1 to 2 ft. A chance of showers. Patchy
fog. Vsby 1 to 3 NM.
.TONIGHT...SE winds 5 kt. Waves less than 1 ft. Showers likely with
a chance of tstms. Patchy fog. Vsby 1 to 3 NM.
.THU...S winds around 5 kt. Waves flat. A chance of showers. Patchy
fog.
.THU NIGHT...S winds around 5 kt. Waves flat.
.FRI...S winds around 5 kt. Waves 1 ft or less. A chance of showers
and tstms.
.FRI NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of
showers and tstms.
.SAT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.

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

$$

ANZ540-142300-
Eastern Bay-
435 AM EDT Wed May 14 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY...

.REST OF THE OVERNIGHT...E winds 15 kt with gusts to 20 kt. Waves
2 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM.
.TODAY...SE winds 10 to 15 kt with gusts to 20 kt... becoming S 5 kt
in the afternoon. Waves 1 ft. A chance of showers. Patchy fog. Vsby
1 NM or less.
.TONIGHT...SE winds 5 kt. Waves flat. Showers likely with a chance
of tstms. Patchy fog. Vsby 1 to 3 NM.
.THU...S winds around 5 kt. Waves flat. A chance of showers. Patchy
fog.
.THU NIGHT...S winds around 5 kt. Waves flat.
.FRI...S winds around 5 kt. Waves 1 ft or less. A chance of showers
and tstms.
.FRI NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of
showers and tstms.
.SAT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.

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

$$

ANZ533-142300-
Chesapeake Bay from North Beach to Drum Point-
435 AM EDT Wed May 14 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT EARLY THIS
MORNING...

.REST OF THE OVERNIGHT...E winds 15 kt with gusts to 20 kt. Waves
3 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM.
.TODAY...SE winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers.
Patchy fog. Vsby 1 NM or less.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. Showers likely with a
chance of tstms. Patchy fog. Vsby 1 to 3 NM.
.THU...S winds around 5 kt. Waves 1 ft or less. A chance of showers.
Patchy fog.
.THU NIGHT...S winds around 5 kt. Waves 1 ft or less.
.FRI...SW winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
and tstms.
.FRI NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers
and tstms.
.SAT...SW winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers
through the night.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.

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

$$

ANZ541-142300-
Choptank River to Cambridge MD and the Little Choptank River-
435 AM EDT Wed May 14 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT EARLY THIS
MORNING...

.REST OF THE OVERNIGHT...E winds 15 kt with gusts to 20 kt. Waves
2 ft. A chance of showers. Patchy fog. Vsby 1 to 3 NM.
.TODAY...S winds 5 to 10 kt. Waves 1 ft. A chance of showers. Patchy
fog. Vsby 1 to 3 NM.
.TONIGHT...SE winds 5 kt. Waves less than 1 ft. Showers likely with
a chance of tstms. Patchy fog. Vsby 1 to 3 NM.
.THU...S winds around 5 kt. Waves flat. A chance of showers. Patchy
fog.
.THU NIGHT...S winds around 5 kt. Waves flat.
.FRI...SW winds around 5 kt. Waves 1 ft or less. A chance of showers
and tstms.
.FRI NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of
showers and tstms.
.SAT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers through
the night.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.

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

$$

ANZ542-142300-
Patuxent River to Broomes Island MD-
435 AM EDT Wed May 14 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT EARLY THIS
MORNING...

.REST OF THE OVERNIGHT...E winds 10 kt. Waves 1 ft. A chance of
showers. Patchy fog. Vsby 1 to 3 NM.
.TODAY...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
Patchy fog. Vsby 1 to 3 NM.
.TONIGHT...SE winds around 5 kt. Waves 1 ft. Showers likely with a
chance of tstms. Vsby 1 to 3 NM.
.THU...S winds around 5 kt. Waves 1 ft. A chance of showers.
.THU NIGHT...S winds around 5 kt. Waves 1 ft. A chance of showers
and tstms.
.FRI...SW winds around 5 kt. Waves 1 ft. A chance of showers and
tstms.
.FRI NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of
showers and tstms.
.SAT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers through
the night.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.

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

$$

ANZ534-142300-
Chesapeake Bay from Drum Point to Smith Point-
435 AM EDT Wed May 14 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT EARLY THIS
MORNING...

.REST OF THE OVERNIGHT...SE winds 15 kt with gusts to 20 kt. Waves
3 ft. A slight chance of showers. Patchy fog. Vsby 1 to 3 NM.
.TODAY...SE winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers.
Patchy fog. Vsby 1 NM or less.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers likely with a
chance of tstms. Patchy fog. Vsby 1 to 3 NM.
.THU...S winds 5 kt. Waves less than 1 ft. A chance of showers.
.THU NIGHT...S winds 5 kt. Waves less than 1 ft. A chance of showers
and tstms.
.FRI...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.FRI NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers
and tstms.
.SAT...SW winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers
through the night.
.SUN...NW winds 10 kt. Waves 1 ft.

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

$$

ANZ543-142300-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
435 AM EDT Wed May 14 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT EARLY THIS
MORNING...

.REST OF THE OVERNIGHT...SE winds 15 kt with gusts to 20 kt. Waves
2 ft. A slight chance of showers. Patchy fog. Vsby 1 to 3 NM.
.TODAY...S winds 5 to 10 kt. Waves 1 ft. A chance of showers. Patchy
fog. Vsby 1 NM or less.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms. Patchy fog. Vsby 1 NM or less.
.THU...S winds 5 to 10 kt. Waves 1 ft. A chance of showers. Patchy
fog.
.THU NIGHT...S winds 5 kt. Waves less than 1 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.FRI NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers
and tstms.
.SAT...SW winds 10 to 15 kt...becoming W after midnight. Waves 1 ft.
A chance of showers through the night.
.SUN...NW winds 10 kt. Waves 1 ft.

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

$$