707
FZUS51 KLWX 010834
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
434 AM EDT Tue Jul 1 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.

ANZ500-012300-
434 AM EDT Tue Jul 1 2025

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

A cold front will approach the water on Tuesday, and eventually
move through Tuesday night. High pressure will build in for the
middle to end of the week. Small Craft Advisories may be needed on
Tuesday. Special Marine Warnings are possible with thunderstorms
during the late afternoon and evening hours each day through
Tuesday.

$$

ANZ535-012300-
Tidal Potomac from Key Bridge to Indian Head-
434 AM EDT Tue Jul 1 2025

.REST OF THE OVERNIGHT...S winds 5 kt. Waves less than 1 ft.
.TODAY...SW winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely.
Vsby 1 NM or less.
.TONIGHT...SW winds around 5 kt. Waves 1 ft. Showers with tstms
likely. Vsby 1 NM or less.
.WED...NW winds around 5 kt. Waves 1 ft. Showers.
.WED NIGHT...SW winds around 5 kt. Waves 1 ft.
.THU...NW winds around 5 kt. Waves 1 ft.
.THU NIGHT...NW winds around 5 kt. Waves 1 ft.
.FRI...N winds around 5 kt. Waves 1 ft or less.
.SAT...S winds around 5 kt. Waves 1 ft.

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

$$

ANZ536-012300-
Tidal Potomac from Indian Head to Cobb Island-
434 AM EDT Tue Jul 1 2025

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

.REST OF THE OVERNIGHT...SW winds 10 kt with gusts to 20 kt. Waves
1 ft.
.TODAY...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. A
chance of showers and tstms. Vsby 1 NM or less.
.TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. Showers with tstms
likely. Vsby 1 NM or less.
.WED...NW winds around 5 kt. Waves 1 ft. Showers with a chance of
tstms.
.WED NIGHT...W winds around 5 kt. Waves 1 ft.
.THU...NW winds around 5 kt. Waves 1 ft.
.THU NIGHT...NW winds around 5 kt. Waves 1 ft.
.FRI...N winds around 5 kt. Waves 1 ft or less.
.SAT...S winds around 5 kt. Waves 1 ft.

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

$$

ANZ537-012300-
Tidal Potomac from Cobb Island to Smith Point-
434 AM EDT Tue Jul 1 2025

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

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

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

$$

ANZ530-012300-
Chesapeake Bay north of Pooles Island-
434 AM EDT Tue Jul 1 2025

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

.REST OF THE OVERNIGHT...SW winds 10 kt with gusts to 20 kt. Waves
1 ft.
.TODAY...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Showers with tstms likely. Vsby 1 NM or less.
.TONIGHT...W winds 5 to 10 kt. Waves 1 ft. Showers with tstms
likely. Vsby 1 NM or less.
.WED...NW winds 5 kt. Waves less than 1 ft. A chance of showers.
.WED NIGHT...W winds around 5 kt. Waves 1 ft.
.THU...NW winds 5 kt. Waves less than 1 ft.
.THU NIGHT...NW winds 5 kt. Waves less than 1 ft.
.FRI...NW winds around 5 kt. Waves 1 ft or less.
.SAT...S winds around 5 kt. Waves 1 ft.

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

$$

ANZ531-012300-
Chesapeake Bay from Pooles Island to Sandy Point-
434 AM EDT Tue Jul 1 2025

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

.REST OF THE OVERNIGHT...SW winds 10 kt with gusts to 20 kt. Waves
2 ft.
.TODAY...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 to 2 ft.
Showers with tstms likely. Vsby 1 NM or less.
.TONIGHT...W winds 5 to 10 kt. Waves 1 ft. Showers with tstms
likely. Vsby 1 NM or less.
.WED...NW winds 5 kt. Waves flat. A chance of showers.
.WED NIGHT...SW winds around 5 kt. Waves flat.
.THU...NW winds 5 kt. Waves less than 1 ft.
.THU NIGHT...NW winds 5 kt. Waves less than 1 ft.
.FRI...N winds around 5 kt. Waves 1 ft or less.
.SAT...S winds 5 to 10 kt. Waves 1 ft or less.

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

$$

ANZ538-012300-
Patapsco River including Baltimore Harbor-
434 AM EDT Tue Jul 1 2025

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

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves less than 1 ft.
.TODAY...SW winds 5 to 10 kt. Waves 1 ft. Showers with tstms likely.
Vsby 1 NM or less.
.TONIGHT...W winds around 5 kt. Waves 1 ft or less. Showers with
tstms likely. Vsby 1 NM or less.
.WED...N winds 5 kt. Waves flat. A chance of showers.
.WED NIGHT...SW winds around 5 kt. Waves flat.
.THU...NW winds 5 kt. Waves flat.
.THU NIGHT...NW winds 5 kt. Waves flat.
.FRI...NW winds around 5 kt. Waves flat.
.SAT...S winds around 5 kt. Waves 1 ft or less.

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

$$

ANZ539-012300-
Chester River to Queenstown MD-
434 AM EDT Tue Jul 1 2025

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

.REST OF THE OVERNIGHT...SW winds 10 kt with gusts to 20 kt. Waves
2 ft.
.TODAY...SW winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft.
Showers with tstms likely. Vsby 1 NM or less.
.TONIGHT...W winds 5 to 10 kt. Waves 1 ft. Showers with tstms
likely. Vsby 1 NM or less.
.WED...NW winds 5 kt. Waves flat. Showers likely.
.WED NIGHT...W winds around 5 kt. Waves flat.
.THU...NW winds 5 kt. Waves less than 1 ft.
.THU NIGHT...NW winds 5 kt. Waves less than 1 ft.
.FRI...N winds around 5 kt. Waves 1 ft or less.
.SAT...S winds 5 to 10 kt. Waves 1 ft or less.

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

$$

ANZ532-012300-
Chesapeake Bay from Sandy Point to North Beach-
434 AM EDT Tue Jul 1 2025

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

.REST OF THE OVERNIGHT...SW winds 10 kt with gusts to 20 kt. Waves
2 ft.
.TODAY...SW winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft.
Showers and tstms likely. Vsby 1 NM or less.
.TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. Showers with tstms
likely. Vsby 1 NM or less.
.WED...NW winds 5 kt. Waves less than 1 ft. Showers likely.
.WED NIGHT...W winds 5 kt. Waves flat.
.THU...NW winds 5 kt. Waves less than 1 ft.
.THU NIGHT...NW winds 5 kt. Waves less than 1 ft.
.FRI...N winds around 5 kt. Waves 1 ft or less.
.SAT...S winds 5 to 10 kt. Waves 1 ft or less.

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

$$

ANZ540-012300-
Eastern Bay-
434 AM EDT Tue Jul 1 2025

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

.REST OF THE OVERNIGHT...SW winds 10 kt with gusts to 20 kt. Waves
2 ft.
.TODAY...SW winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft.
Showers and tstms likely. Vsby 1 NM or less.
.TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. Showers with tstms
likely. Vsby 1 NM or less.
.WED...W winds 5 kt. Waves less than 1 ft. Showers likely.
.WED NIGHT...W winds around 5 kt. Waves flat.
.THU...NW winds 5 kt. Waves less than 1 ft.
.THU NIGHT...NW winds 5 kt. Waves flat.
.FRI...N winds around 5 kt. Waves 1 ft or less.
.SAT...S winds 5 to 10 kt. Waves 1 ft or less.

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

$$

ANZ533-012300-
Chesapeake Bay from North Beach to Drum Point-
434 AM EDT Tue Jul 1 2025

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

.REST OF THE OVERNIGHT...SW winds 15 kt with gusts to 25 kt. Waves
2 ft.
.TODAY...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A
chance of showers and tstms. Vsby 1 NM or less.
.TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. Showers with tstms
likely. Vsby 1 NM or less.
.WED...W winds 5 to 10 kt. Waves 1 ft. Showers with a chance of
tstms.
.WED NIGHT...SW winds 5 kt. Waves flat.
.THU...NW winds 5 kt. Waves less than 1 ft.
.THU NIGHT...NW winds 5 kt. Waves less than 1 ft.
.FRI...N winds 5 to 10 kt...becoming SE. Waves 1 ft or less.
.SAT...S winds 5 to 10 kt. Waves 1 ft or less.

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

$$

ANZ541-012300-
Choptank River to Cambridge MD and the Little Choptank River-
434 AM EDT Tue Jul 1 2025

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

.REST OF THE OVERNIGHT...SW winds 15 kt with gusts to 20 kt. Waves
2 ft.
.TODAY...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Showers and tstms likely. Vsby 1 NM or less.
.TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. Showers with tstms
likely. Vsby 1 NM or less.
.WED...W winds 5 kt. Waves less than 1 ft. Showers with a chance of
tstms.
.WED NIGHT...SW winds around 5 kt. Waves flat.
.THU...NW winds 5 kt. Waves less than 1 ft.
.THU NIGHT...NW winds 5 kt. Waves less than 1 ft.
.FRI...N winds 5 to 10 kt...becoming S after midnight. Waves 1 ft or
less.
.SAT...S winds 5 to 10 kt. Waves 1 ft or less.

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

$$

ANZ542-012300-
Patuxent River to Broomes Island MD-
434 AM EDT Tue Jul 1 2025

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

.REST OF THE OVERNIGHT...SW winds 10 kt with gusts to 20 kt. Waves
1 ft.
.TODAY...SW winds 10 kt with gusts to 20 kt. Waves 1 ft. A chance of
showers and tstms. Vsby 1 NM or less.
.TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. Showers with tstms
likely. Vsby 1 NM or less.
.WED...W winds 5 kt. Waves less than 1 ft. Showers with a chance of
tstms.
.WED NIGHT...SW winds around 5 kt. Waves 1 ft.
.THU...NW winds around 5 kt. Waves 1 ft.
.THU NIGHT...W winds around 5 kt. Waves 1 ft.
.FRI...NE winds around 5 kt. Waves 1 ft.
.SAT...S winds around 5 kt. Waves 1 ft.

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

$$

ANZ534-012300-
Chesapeake Bay from Drum Point to Smith Point-
434 AM EDT Tue Jul 1 2025

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

.REST OF THE OVERNIGHT...SW winds 15 kt with gusts to 25 kt. Waves
3 ft.
.TODAY...SW winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft.
A chance of showers and tstms.
.TONIGHT...SW winds 10 to 15 kt. Waves 2 ft. Showers with tstms
likely. Vsby 1 NM or less.
.WED...W winds 5 to 10 kt. Waves 1 to 2 ft. Showers with a chance of
tstms.
.WED NIGHT...W winds 5 kt. Waves less than 1 ft.
.THU...NW winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...W winds 5 to 10 kt. Waves 1 ft.
.FRI...N winds 5 to 10 kt...becoming SE. Waves 1 ft.
.SAT...S winds 5 to 10 kt. Waves 1 to 2 ft.

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

$$

ANZ543-012300-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
434 AM EDT Tue Jul 1 2025

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

.REST OF THE OVERNIGHT...SW winds 20 kt with gusts to 25 kt. Waves
2 ft.
.TODAY...SW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. A
chance of showers and tstms.
.TONIGHT...SW winds 10 to 15 kt. Waves 1 to 2 ft. Showers and tstms
likely. Vsby 1 NM or less.
.WED...W winds 10 to 15 kt. Waves 1 ft. Showers with a chance of
tstms.
.WED NIGHT...W winds 5 kt. Waves less than 1 ft.
.THU...NW winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...W winds 5 to 10 kt. Waves 1 ft.
.FRI...N winds 5 to 10 kt...becoming SE. Waves 1 ft or less.
.SAT...S winds 5 to 10 kt. Waves 1 ft.

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

$$