151
FZUS51 KLWX 240858
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
458 AM EDT Fri Jul 24 2026

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.

ANZ500-242300-
458 AM EDT Fri Jul 24 2026

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

High pressure will build in from the west throughout today before
moving off the New England coast this weekend. The next frontal
system may approach by early next week.

$$

ANZ535-242300-
Tidal Potomac from Key Bridge to Indian Head-
458 AM EDT Fri Jul 24 2026

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

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

$$

ANZ536-242300-
Tidal Potomac from Indian Head to Cobb Island-
458 AM EDT Fri Jul 24 2026

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

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

$$

ANZ537-242300-
Tidal Potomac from Cobb Island to Smith Point-
458 AM EDT Fri Jul 24 2026

.REST OF THE OVERNIGHT...E winds 10 kt. Waves 1 ft.
.TODAY...E winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 5 kt. Waves less than 1 ft.
.SAT NIGHT...NE winds around 5 kt. Waves 1 ft.
.SUN...NE winds around 5 kt. Waves 1 ft.
.SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
in the afternoon. A chance of showers and tstms through the night.
.TUE...SW 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.

$$

ANZ530-242300-
Chesapeake Bay north of Pooles Island-
458 AM EDT Fri Jul 24 2026

.REST OF THE OVERNIGHT...E winds 5 kt. Waves flat.
.TODAY...E winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft or less.
.SAT...E winds 5 kt. Waves less than 1 ft.
.SAT NIGHT...E winds around 5 kt. Waves 1 ft or less.
.SUN...E winds around 5 kt. Waves flat.
.SUN NIGHT...S winds 5 to 10 kt. Waves flat.
.MON...S winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
and tstms.
.TUE...SW winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms.

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

$$

ANZ531-242300-
Chesapeake Bay from Pooles Island to Sandy Point-
458 AM EDT Fri Jul 24 2026

.REST OF THE OVERNIGHT...SE winds 5 kt. Waves less than 1 ft.
.TODAY...E winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...E winds 5 kt. Waves less than 1 ft.
.SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SUN...E winds around 5 kt. Waves flat.
.SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms
through the night.
.TUE...SW winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms.

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

$$

ANZ538-242300-
Patapsco River including Baltimore Harbor-
458 AM EDT Fri Jul 24 2026

.REST OF THE OVERNIGHT...E winds 5 kt. Waves flat.
.TODAY...E winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...E winds 5 kt. Waves less than 1 ft.
.SAT NIGHT...E winds around 5 kt. Waves 1 ft.
.SUN...E winds around 5 kt. Waves flat.
.SUN NIGHT...S winds 5 kt. Waves flat.
.MON...S winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
and tstms.
.TUE...SW winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms.

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

$$

ANZ539-242300-
Chester River to Queenstown MD-
458 AM EDT Fri Jul 24 2026

.REST OF THE OVERNIGHT...E winds 5 kt. Waves flat.
.TODAY...E winds 5 kt. Waves less than 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft or less.
.SAT...E winds around 5 kt. Waves 1 ft.
.SAT NIGHT...E winds around 5 kt. Waves 1 ft or less.
.SUN...N winds around 5 kt. Waves flat.
.SUN NIGHT...S winds around 5 kt. Waves 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
and tstms through the night.
.TUE...SW winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms.

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

$$

ANZ532-242300-
Chesapeake Bay from Sandy Point to North Beach-
458 AM EDT Fri Jul 24 2026

.REST OF THE OVERNIGHT...E winds 5 kt. Waves less than 1 ft.
.TODAY...E winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds around 5 kt. Waves flat.
.SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.MON...SW winds 5 kt...becoming S 10 to 15 kt. Waves 1 to 2 ft. A
chance of showers and tstms through the night.
.TUE...SW winds 10 kt. Waves 1 to 2 ft. Showers likely with a chance
of tstms.

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

$$

ANZ540-242300-
Eastern Bay-
458 AM EDT Fri Jul 24 2026

.REST OF THE OVERNIGHT...E winds 5 kt. Waves flat.
.TODAY...E winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft or less.
.SAT...NE winds around 5 kt. Waves 1 ft.
.SAT NIGHT...E winds around 5 kt. Waves 1 ft or less.
.SUN...N winds around 5 kt. Waves flat.
.SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms
through the night.
.TUE...SW winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms.

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

$$

ANZ533-242300-
Chesapeake Bay from North Beach to Drum Point-
458 AM EDT Fri Jul 24 2026

.REST OF THE OVERNIGHT...E winds 5 kt. Waves less than 1 ft.
.TODAY...E winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...E winds around 5 kt. Waves 1 ft.
.SUN...NE winds around 5 kt. Waves flat.
.SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.MON...SW winds 5 kt...becoming S 10 to 15 kt. Waves 1 to 2 ft. A
chance of showers in the afternoon. A chance of showers and tstms
through the night.
.TUE...SW winds 10 to 15 kt...becoming W after midnight. Waves 1 to
2 ft. Showers likely with a chance of tstms.

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

$$

ANZ541-242300-
Choptank River to Cambridge MD and the Little Choptank River-
458 AM EDT Fri Jul 24 2026

.REST OF THE OVERNIGHT...E winds 5 kt. Waves less than 1 ft.
.TODAY...E winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 5 kt. Waves less than 1 ft.
.SAT NIGHT...E winds around 5 kt. Waves 1 ft.
.SUN...NE winds around 5 kt. Waves flat.
.SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.MON...S winds 10 to 15 kt. Waves 1 ft. A chance of showers and
tstms after midnight.
.TUE...SW winds 5 to 10 kt. Waves 1 ft. Showers likely through the
night. A chance of tstms. A chance of showers after midnight.

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

$$

ANZ542-242300-
Patuxent River to Broomes Island MD-
458 AM EDT Fri Jul 24 2026

.REST OF THE OVERNIGHT...E winds 5 kt. Waves less than 1 ft.
.TODAY...E winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...E winds around 5 kt. Waves 1 ft.
.SAT...NE winds 5 kt. Waves less than 1 ft.
.SAT NIGHT...NE winds around 5 kt. Waves 1 ft.
.SUN...NE winds around 5 kt. Waves 1 ft.
.SUN NIGHT...S winds 5 kt. Waves less than 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft. A chance of showers in the
afternoon. A chance of showers and tstms through the night.
.TUE...SW winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms.

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

$$

ANZ534-242300-
Chesapeake Bay from Drum Point to Smith Point-
458 AM EDT Fri Jul 24 2026

.REST OF THE OVERNIGHT...E winds 10 kt. Waves 1 ft.
.TODAY...E winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds 5 kt. Waves less than 1 ft.
.SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.MON...SW winds 5 kt...becoming S 10 to 15 kt. Waves 1 to 2 ft. A
chance of showers through the night.
.TUE...S winds 10 to 15 kt...becoming W after midnight. Waves 2 ft.
A chance of showers in the afternoon. A chance of tstms. Showers
likely through the night.

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

$$

ANZ543-242300-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
458 AM EDT Fri Jul 24 2026

.REST OF THE OVERNIGHT...NE winds 10 kt. Waves 1 ft.
.TODAY...E winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...N winds 5 kt. Waves less than 1 ft.
.SUN NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.MON...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers
through the night.
.TUE...SW winds 10 to 15 kt. Waves 2 ft. A chance of showers in the
afternoon. A chance of tstms. Showers likely through the night.

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

$$