387
FZUS51 KLWX 100233
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1033 PM EDT Thu Oct 9 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.

ANZ500-100800-
1033 PM EDT Thu Oct 9 2025

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

High pressure will build to the north through Friday. Coastal low
pressure will develop along the southeast U.S. coast this weekend
before lifting north toward the Delmarva early next week. Small
Craft Advisories will be needed this weekend, with gales possible at
 times Saturday night through Monday.

$$

ANZ535-100800-
Tidal Potomac from Key Bridge to Indian Head-
1033 PM EDT Thu Oct 9 2025

...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH LATE SUNDAY
NIGHT...

.REST OF TONIGHT...NE winds 5 kt. Waves less than 1 ft.
.FRI...E winds 5 kt. Waves less than 1 ft.
.FRI NIGHT...E winds around 5 kt. Waves 1 ft.
.SAT...NE winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. A chance
of showers.
.SAT NIGHT...NE winds 10 kt with gusts to 20 kt. Waves 1 ft.
Showers.
.SUN...NE winds 15 to 20 kt with gusts to 30 kt. Waves 1 to 2 ft.
Showers.
.SUN NIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
Showers likely.
.MON...NW winds 10 to 15 kt. Waves 1 to 2 ft. Showers likely, mainly
in the morning.
.TUE...N winds 10 to 15 kt. Waves 1 to 2 ft.

$$

ANZ536-100800-
Tidal Potomac from Indian Head to Cobb Island-
1033 PM EDT Thu Oct 9 2025

...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH LATE SUNDAY
NIGHT...

.REST OF TONIGHT...NE winds 5 kt. Waves less than 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 kt. Waves less than 1 ft.
.SAT...NE winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. A chance
of showers.
.SAT NIGHT...NE winds 10 to 15 kt with gusts to 25 kt. Waves 1 to
2 ft. Showers likely.
.SUN...NE winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
Showers.
.SUN NIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 2 to
3 ft. Showers likely.
.MON...NW winds 15 to 20 kt. Waves 2 to 3 ft. Showers likely, mainly
in the morning.
.TUE...N winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers in
the morning.

$$

ANZ537-100800-
Tidal Potomac from Cobb Island to Smith Point-
1033 PM EDT Thu Oct 9 2025

...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH LATE SUNDAY
NIGHT...

.REST OF TONIGHT...E winds 15 kt. Waves 2 ft.
.FRI...E winds 5 to 10 kt. Waves 2 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 2 ft.
.SAT...NE winds 10 to 15 kt with gusts to 25 kt. Waves 2 to 3 ft. A
chance of showers.
.SAT NIGHT...NE winds 15 to 20 kt with gusts to 30 kt. Waves 4 ft.
Showers.
.SUN...NE winds 25 to 30 kt. Waves 5 ft. Showers.
.SUN NIGHT...N winds 25 to 30 kt. Waves 5 ft. Showers likely.
.MON...NW winds 20 to 25 kt. Waves 4 ft. Showers likely, mainly in
the morning.
.TUE...N winds 15 to 20 kt. Waves 3 ft. A chance of showers in the
morning.

$$

ANZ530-100800-
Chesapeake Bay north of Pooles Island-
1033 PM EDT Thu Oct 9 2025

...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH LATE SUNDAY
NIGHT...

.REST OF TONIGHT...NE winds 5 kt. Waves less than 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...E winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. A chance
of showers.
.SAT NIGHT...NE winds 10 to 15 kt with gusts to 30 kt. Waves 2 ft.
Showers.
.SUN...NE winds 20 to 25 kt with gusts to 35 kt. Waves 3 ft.
Showers.
.SUN NIGHT...N winds 20 to 25 kt with gusts to 35 kt. Waves 3 ft.
Showers.
.MON...N winds 20 to 25 kt. Waves 2 ft. Showers likely through the
day. A chance of tstms through the night. A chance of showers
through the night.
.TUE...N winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers in
the morning.

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

$$

ANZ531-100800-
Chesapeake Bay from Pooles Island to Sandy Point-
1033 PM EDT Thu Oct 9 2025

...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH LATE SUNDAY
NIGHT...

.REST OF TONIGHT...E winds 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft. A
chance of showers.
.SAT NIGHT...NE winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
Showers.
.SUN...NE winds 25 to 30 kt. Waves 4 ft. Showers.
.SUN NIGHT...N winds 25 to 30 kt. Waves 4 ft. Showers.
.MON...N winds 20 to 25 kt. Waves 4 ft. Showers likely through the
day. A chance of showers through the night.
.TUE...N winds 15 to 20 kt. Waves 3 ft. A chance of showers in the
morning.

$$

ANZ538-100800-
Patapsco River including Baltimore Harbor-
1033 PM EDT Thu Oct 9 2025

...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH LATE SUNDAY
NIGHT...

.REST OF TONIGHT...NE winds 5 kt. Waves less than 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.SAT...E winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. A chance
of showers.
.SAT NIGHT...NE winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
Showers.
.SUN...NE winds 20 to 25 kt with gusts to 35 kt. Waves 2 ft.
Showers.
.SUN NIGHT...N winds 20 to 25 kt with gusts to 35 kt. Waves 2 ft.
Showers likely.
.MON...N winds 15 to 20 kt. Waves 2 ft. Showers likely through the
day. A chance of showers through the night.
.TUE...N winds 10 to 15 kt. Waves 1 ft. A chance of showers in the
morning.

$$

ANZ539-100800-
Chester River to Queenstown MD-
1033 PM EDT Thu Oct 9 2025

...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH LATE SUNDAY
NIGHT...

.REST OF TONIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 kt. Waves less than 1 ft.
.SAT...NE winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. Showers
likely.
.SAT NIGHT...NE winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
Showers.
.SUN...NE winds 20 to 25 kt with gusts to 35 kt. Waves 3 ft.
Showers.
.SUN NIGHT...N winds 20 to 25 kt with gusts to 35 kt. Waves 4 ft.
Showers.
.MON...N winds 20 to 25 kt. Waves 3 ft. Showers likely through the
day. A chance of showers through the night.
.TUE...N winds 10 to 15 kt. Waves 2 to 3 ft. A chance of showers in
the morning.

$$

ANZ532-100800-
Chesapeake Bay from Sandy Point to North Beach-
1033 PM EDT Thu Oct 9 2025

...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH LATE SUNDAY
NIGHT...

.REST OF TONIGHT...E winds 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. Showers
likely.
.SAT NIGHT...NE winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
Showers.
.SUN...NE winds 25 to 30 kt. Waves 4 ft. Showers.
.SUN NIGHT...N winds 25 to 30 kt. Waves 5 ft. Showers likely.
.MON...NW winds 20 to 25 kt. Waves 4 ft. Showers likely through the
day. A chance of showers through the night.
.TUE...N winds 20 to 25 kt. Waves 3 ft. A chance of showers in the
morning.

$$

ANZ540-100800-
Eastern Bay-
1033 PM EDT Thu Oct 9 2025

...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH LATE SUNDAY
NIGHT...

.REST OF TONIGHT...E winds 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. Showers
likely.
.SAT NIGHT...NE winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
Showers.
.SUN...NE winds 20 to 25 kt. Gusts up to 30 kt... increasing to
40 kt in the afternoon. Waves 3 ft. Showers.
.SUN NIGHT...N winds 20 to 25 kt with gusts to 40 kt. Waves 3 ft.
Showers.
.MON...NW winds 20 to 25 kt. Waves 2 to 3 ft. Showers likely through
the day. A chance of showers through the night.
.TUE...N winds 15 to 20 kt. Waves 2 ft. A chance of showers in the
morning.

$$

ANZ533-100800-
Chesapeake Bay from North Beach to Drum Point-
1033 PM EDT Thu Oct 9 2025

...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH LATE SUNDAY
NIGHT...

.REST OF TONIGHT...E winds 15 kt. Waves 2 ft.
.FRI...E winds 10 kt. Waves 1 to 2 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. A
chance of showers.
.SAT NIGHT...NE winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft.
Showers.
.SUN...NE winds 25 to 30 kt. Waves 5 ft. Showers.
.SUN NIGHT...N winds 25 to 30 kt. Waves 6 ft. Showers likely.
.MON...NW winds 25 to 30 kt. Waves 5 ft. Showers likely in the
morning. A chance of showers.
.TUE...N winds 20 to 25 kt. Waves 4 ft. A chance of showers in the
morning.

$$

ANZ541-100800-
Choptank River to Cambridge MD and the Little Choptank River-
1033 PM EDT Thu Oct 9 2025

...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH LATE SUNDAY
NIGHT...

.REST OF TONIGHT...E winds 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft. A
chance of showers.
.SAT NIGHT...NE winds 15 to 20 kt with gusts to 30 kt. Waves 2 to
3 ft. Showers.
.SUN...NE winds 25 to 30 kt. Waves 3 ft. Showers.
.SUN NIGHT...N winds 25 to 30 kt. Waves 4 ft. Showers likely.
.MON...NW winds 20 to 25 kt. Waves 3 ft. Showers likely through the
day. A chance of showers through the night.
.TUE...N winds 20 to 25 kt. Waves 2 to 3 ft. A chance of showers in
the morning.

$$

ANZ542-100800-
Patuxent River to Broomes Island MD-
1033 PM EDT Thu Oct 9 2025

...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH LATE SUNDAY
NIGHT...

.REST OF TONIGHT...E winds 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 10 to 15 kt. Gusts up to 25 kt in the afternoon.
Waves 1 ft. A chance of showers.
.SAT NIGHT...NE winds 10 to 15 kt with gusts to 30 kt. Waves 1 ft.
Showers.
.SUN...NE winds 20 to 25 kt. Gusts up to 30 kt... increasing to
40 kt in the afternoon. Waves 1 to 2 ft. Showers.
.SUN NIGHT...N winds 20 to 25 kt with gusts to 35 kt. Waves 2 ft.
Showers likely.
.MON...NW winds 15 to 20 kt. Waves 2 ft. Showers likely, mainly in
the morning.
.TUE...N winds 15 to 20 kt. Waves 1 ft. A chance of showers in the
morning.

$$

ANZ534-100800-
Chesapeake Bay from Drum Point to Smith Point-
1033 PM EDT Thu Oct 9 2025

...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH LATE SUNDAY
NIGHT...

.REST OF TONIGHT...E winds 15 kt. Waves 2 ft.
.FRI...E winds 10 to 15 kt. Waves 2 ft.
.FRI NIGHT...E winds 10 to 15 kt. Waves 2 ft.
.SAT...E winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. A
chance of showers.
.SAT NIGHT...NE winds 20 to 25 kt with gusts to 35 kt. Waves 4 ft.
Showers.
.SUN...NE winds 25 to 35 kt. Waves 5 ft...building to 7 ft in the
afternoon. Showers.
.SUN NIGHT...N winds 25 to 35 kt. Waves 7 ft. Showers likely.
.MON...NW winds 25 to 30 kt. Waves 6 ft. Showers likely, mainly in
the morning.
.TUE...N winds 20 to 25 kt. Waves 4 ft. A chance of showers in the
morning.

$$

ANZ543-100800-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1033 PM EDT Thu Oct 9 2025

...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH LATE SUNDAY
NIGHT...

.REST OF TONIGHT...NE winds 15 kt. Waves 1 ft.
.FRI...E winds 10 to 15 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...E winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft. A
chance of showers.
.SAT NIGHT...NE winds 15 to 20 kt with gusts to 30 kt. Waves 2 to
3 ft. Showers.
.SUN...NE winds 25 to 30 kt. Waves 3 ft. Showers.
.SUN NIGHT...N winds 25 to 30 kt. Waves 4 ft. Showers likely.
.MON...NW winds 20 to 25 kt. Waves 3 ft. Showers likely in the
morning. A chance of showers.
.TUE...N winds 20 to 25 kt. Waves 2 to 3 ft. A chance of showers in
the morning.

$$