055
FZUS51 KLWX 292334
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
734 PM EDT Mon Sep 29 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.

ANZ500-300800-
734 PM EDT Mon Sep 29 2025

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

High pressure will build southward from eastern Canada through much
of the week, bringing hazardous marine conditions during the middle
to late part of the week. Additional Small Craft Advisories may be
needed for portions of the waters on Thursday.

$$

ANZ535-300800-
Tidal Potomac from Key Bridge to Indian Head-
734 PM EDT Mon Sep 29 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
WEDNESDAY AFTERNOON...

.TONIGHT...NE winds around 5 kt. Waves 1 ft or less. A slight chance
of showers.
.TUE...NE winds around 5 kt. Waves 1 ft.
.TUE NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt in the late
evening and overnight. Waves 1 ft.
.WED...NE winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.WED NIGHT...NE winds 5 kt. Waves less than 1 ft.
.THU...NE winds 5 kt. Waves less than 1 ft.
.THU NIGHT...SE winds around 5 kt. Waves 1 ft.
.FRI...SE winds around 5 kt. Waves 1 ft.
.SAT...S winds around 5 kt. Waves 1 ft.

$$

ANZ536-300800-
Tidal Potomac from Indian Head to Cobb Island-
734 PM EDT Mon Sep 29 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
WEDNESDAY AFTERNOON...

.TONIGHT...NE winds 5 kt. Waves less than 1 ft. A slight chance of
showers.
.TUE...N winds 5 to 10 kt. Waves 1 ft.
.TUE NIGHT...N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.WED...NE winds 10 kt with gusts to 20 kt. Waves 1 ft.
.WED NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.THU...NE winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...E winds around 5 kt. Waves 1 ft.
.FRI...SE winds around 5 kt. Waves 1 ft.
.SAT...S winds around 5 kt. Waves 1 ft.

$$

ANZ537-300800-
Tidal Potomac from Cobb Island to Smith Point-
734 PM EDT Mon Sep 29 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH
WEDNESDAY EVENING...

.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft. A slight chance of
showers.
.TUE...N winds 10 to 15 kt. Waves 1 to 2 ft.
.TUE NIGHT...NE winds 15 to 20 kt. Gusts up to 20 kt...increasing to
25 kt after midnight. Waves 2 to 3 ft.
.WED...NE winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.WED NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.THU...NE winds 10 to 15 kt. Waves 2 ft.
.THU NIGHT...E winds 5 to 10 kt. Waves 1 to 2 ft.
.FRI...E winds 5 to 10 kt...becoming SW after midnight. Waves 1 ft
or less.
.SAT...S winds 5 kt. Waves less than 1 ft.

$$

ANZ530-300800-
Chesapeake Bay north of Pooles Island-
734 PM EDT Mon Sep 29 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON...

.TONIGHT...NE winds 5 kt. Waves less than 1 ft.
.TUE...NE winds 5 to 10 kt. Waves 1 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt...increasing to
25 kt late. Waves 1 to 2 ft.
.WED...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.WED NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.THU...NE winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...E winds 5 kt. Waves less than 1 ft.
.FRI...S winds around 5 kt. Waves 1 ft.
.SAT...SW winds around 5 kt. Waves 1 ft.

$$

ANZ531-300800-
Chesapeake Bay from Pooles Island to Sandy Point-
734 PM EDT Mon Sep 29 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON...

.TONIGHT...NE winds 5 kt. Waves flat. A slight chance of showers
this evening.
.TUE...NE winds 5 to 10 kt. Waves 1 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt...increasing to
25 kt after midnight. Waves 2 ft.
.WED...NE winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.WED NIGHT...NE winds 10 kt. Waves 1 to 2 ft.
.THU...NE winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.FRI...S winds 5 kt. Waves flat.
.SAT...SW winds 5 kt. Waves less than 1 ft.

$$

ANZ538-300800-
Patapsco River including Baltimore Harbor-
734 PM EDT Mon Sep 29 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON...

.TONIGHT...NE winds around 5 kt. Waves flat.
.TUE...NE winds 5 to 10 kt. Waves 1 ft or less.
.TUE NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt in the late
evening and overnight. Waves 1 ft.
.WED...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.THU...NE winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...SE winds around 5 kt. Waves 1 ft.
.FRI...S winds around 5 kt. Waves flat.
.SAT...SW winds around 5 kt. Waves 1 ft or less.

$$

ANZ539-300800-
Chester River to Queenstown MD-
734 PM EDT Mon Sep 29 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON...

.TONIGHT...NE winds 5 kt. Waves flat. A slight chance of showers
this evening.
.TUE...NE winds 5 kt. Waves less than 1 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt...increasing to
25 kt late. Waves 1 to 2 ft.
.WED...NE winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.WED NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.THU...NE winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...E winds 5 kt. Waves less than 1 ft.
.FRI...S winds around 5 kt. Waves flat.
.SAT...SW winds 5 kt. Waves less than 1 ft.

$$

ANZ532-300800-
Chesapeake Bay from Sandy Point to North Beach-
734 PM EDT Mon Sep 29 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON...

.TONIGHT...NE winds 5 kt. Waves less than 1 ft. A slight chance of
showers this evening.
.TUE...N winds 5 to 10 kt. Waves 1 ft.
.TUE NIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Waves 2 to
3 ft.
.WED...NE winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.WED NIGHT...NE winds 10 to 15 kt. Waves 2 ft.
.THU...NE winds 10 to 15 kt. Waves 1 to 2 ft.
.THU NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.FRI...S winds 5 kt. Waves less than 1 ft.
.SAT...S winds 5 to 10 kt. Waves 1 ft.

$$

ANZ540-300800-
Eastern Bay-
734 PM EDT Mon Sep 29 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON...

.TONIGHT...NE winds 5 kt. Waves flat. A slight chance of showers
this evening.
.TUE...NE winds 5 to 10 kt. Waves 1 ft.
.TUE NIGHT...NE winds 10 to 15 kt with gusts to 25 kt. Waves 1 to
2 ft.
.WED...NE winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.WED NIGHT...NE winds 10 kt. Waves 1 ft.
.THU...NE winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.FRI...S winds around 5 kt. Waves flat.
.SAT...S winds 5 kt. Waves less than 1 ft.

$$

ANZ533-300800-
Chesapeake Bay from North Beach to Drum Point-
734 PM EDT Mon Sep 29 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON...

.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft. A slight chance of
showers this evening.
.TUE...N winds 10 to 15 kt. Waves 1 to 2 ft.
.TUE NIGHT...NE winds 15 to 20 kt. Gusts up to 20 kt...increasing to
25 kt after midnight. Waves 2 to 3 ft.
.WED...NE winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.WED NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.THU...NE winds 10 to 15 kt. Waves 2 ft.
.THU NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.FRI...SE winds 5 kt. Waves less than 1 ft.
.SAT...S winds 5 to 10 kt. Waves 1 ft.

$$

ANZ541-300800-
Choptank River to Cambridge MD and the Little Choptank River-
734 PM EDT Mon Sep 29 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON...

.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft or less. A slight chance
of showers this evening.
.TUE...NE winds 5 to 10 kt. Waves 1 ft.
.TUE NIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Waves 1 to
2 ft.
.WED...NE winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.WED NIGHT...NE winds 10 to 15 kt. Waves 1 to 2 ft.
.THU...NE winds 10 to 15 kt. Waves 1 ft.
.THU NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.FRI...S winds 5 kt. Waves less than 1 ft.
.SAT...S winds 5 kt. Waves less than 1 ft.

$$

ANZ542-300800-
Patuxent River to Broomes Island MD-
734 PM EDT Mon Sep 29 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON...

.TONIGHT...NE winds 5 kt. Waves less than 1 ft. A slight chance of
showers this evening.
.TUE...N winds 5 to 10 kt. Waves 1 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt...increasing to
25 kt late. Waves 1 ft.
.WED...NE winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
.WED NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.THU...NE winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.FRI...SE winds 5 kt. Waves less than 1 ft.
.SAT...S winds 5 kt. Waves less than 1 ft.

$$

ANZ534-300800-
Chesapeake Bay from Drum Point to Smith Point-
734 PM EDT Mon Sep 29 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH
WEDNESDAY EVENING...

.TONIGHT...NE winds 10 kt. Waves 1 ft. A slight chance of showers.
.TUE...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.TUE NIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.WED...NE winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.WED NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 to
3 ft.
.THU...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.THU NIGHT...E winds 10 to 15 kt. Waves 2 ft.
.FRI...E winds 5 to 10 kt...becoming S. Waves 1 ft.
.SAT...S winds 5 to 10 kt. Waves 1 ft.

$$

ANZ543-300800-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
734 PM EDT Mon Sep 29 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH
WEDNESDAY EVENING...

.TONIGHT...NE winds 10 kt. Waves 1 ft.
.TUE...NE winds 10 to 15 kt. Waves 1 ft.
.TUE NIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.WED...NE winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.WED NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.THU...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.THU NIGHT...E winds 10 to 15 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt...becoming S. Waves 1 ft.
.SAT...S winds 5 to 10 kt. Waves 1 ft.

$$