217
FZUS51 KLWX 151623
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1223 PM EDT Wed Oct 15 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.

ANZ500-160800-
1223 PM EDT Wed Oct 15 2025

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

A cold front moves through the area today. A prolonged period of
hazardous marine conditions is expected to continue through the end
of the week. Small Craft Advisories will likely be needed through
Friday morning.

$$

ANZ535-160800-
Tidal Potomac from Key Bridge to Indian Head-
1223 PM EDT Wed Oct 15 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY EVENING...

.THIS AFTERNOON...N winds 10 kt with gusts to 20 kt. Waves 1 ft.
.TONIGHT...N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.THU...N winds 5 to 10 kt. Gusts up to 20 kt... increasing to 25 kt
in the afternoon. Waves 1 ft.
.THU NIGHT...N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.FRI...NW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...NW winds around 5 kt. Waves 1 ft or less.
.SAT...S winds around 5 kt...increasing to 5 to 10 kt after
midnight. Waves 1 ft.
.SUN...S winds 10 to 15 kt...becoming SW after midnight. Waves 1 to
2 ft. Showers likely through the night.

$$

ANZ536-160800-
Tidal Potomac from Indian Head to Cobb Island-
1223 PM EDT Wed Oct 15 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY EVENING...

.THIS AFTERNOON...N winds 10 kt with gusts to 20 kt. Waves 1 ft.
.TONIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.THU...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.THU NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.FRI...N winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...NW winds around 5 kt. Waves 1 ft.
.SAT...SW winds around 5 kt...becoming S. Waves 1 ft.
.SUN...S winds 15 to 20 kt. Waves 1 to 2 ft. Showers likely through
the night.

$$

ANZ537-160800-
Tidal Potomac from Cobb Island to Smith Point-
1223 PM EDT Wed Oct 15 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.THIS AFTERNOON...N winds 10 to 15 kt with gusts to 20 kt. Waves
2 ft.
.TONIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.THU...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft.
.THU NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.FRI...N winds 10 to 15 kt. Gusts up to 25 kt in the morning. Waves
2 ft.
.FRI NIGHT...NW winds 5 to 10 kt. Waves 1 ft or less.
.SAT...SW winds around 5 kt...becoming S. Waves 1 ft or less.
.SUN...S winds 15 to 20 kt. Waves 2 ft. Showers likely through the
night.

$$

ANZ530-160800-
Chesapeake Bay north of Pooles Island-
1223 PM EDT Wed Oct 15 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.THIS AFTERNOON...N winds 15 kt with gusts to 20 kt. Waves 1 ft.
.TONIGHT...N winds 15 to 20 kt. Waves 2 ft.
.THU...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft.
.THU NIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 to
2 ft.
.FRI...N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.SAT...S winds around 5 kt...becoming SE after midnight. Waves 1 ft.
.SUN...S winds 15 to 20 kt...becoming SW after midnight. Waves 1 to
2 ft. Showers likely through the night.

$$

ANZ531-160800-
Chesapeake Bay from Pooles Island to Sandy Point-
1223 PM EDT Wed Oct 15 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.THIS AFTERNOON...N winds 15 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.THU...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft.
.THU NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.FRI...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.SAT...E winds around 5 kt...becoming S. Waves 1 ft or less.
.SUN...S winds 20 to 25 kt...becoming SW 15 to 20 kt after midnight.
Waves 2 to 3 ft. Showers likely through the night.

$$

ANZ538-160800-
Patapsco River including Baltimore Harbor-
1223 PM EDT Wed Oct 15 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.THIS AFTERNOON...N winds 10 kt with gusts to 20 kt. Waves 1 ft.
.TONIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.THU...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.THU NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.FRI...N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.FRI NIGHT...N winds 5 kt. Waves less than 1 ft.
.SAT...SE winds around 5 kt...becoming S after midnight. Waves 1 ft
or less.
.SUN...S winds 10 to 15 kt...becoming SW after midnight. Waves 1 ft.
Showers likely through the night.

$$

ANZ539-160800-
Chester River to Queenstown MD-
1223 PM EDT Wed Oct 15 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.THIS AFTERNOON...N winds 10 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.THU...N winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.THU NIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.FRI...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.FRI NIGHT...N winds around 5 kt. Waves 1 ft or less.
.SAT...SE winds around 5 kt...becoming S after midnight. Waves 1 ft
or less.
.SUN...S winds 15 to 20 kt...becoming SW after midnight. Waves 1 to
2 ft. Showers likely through the night.

$$

ANZ532-160800-
Chesapeake Bay from Sandy Point to North Beach-
1223 PM EDT Wed Oct 15 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.THIS AFTERNOON...N winds 15 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.THU...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.THU NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.FRI...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.SAT...SW winds 5 kt...becoming S 10 to 15 kt. Waves 1 ft or less...
building to 2 ft after midnight.
.SUN...S winds 20 to 25 kt...becoming SW 15 to 20 kt after midnight.
Waves 2 ft...building to 3 ft. Showers likely through the night.

$$

ANZ540-160800-
Eastern Bay-
1223 PM EDT Wed Oct 15 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.THIS AFTERNOON...N winds 15 kt with gusts to 20 kt. Waves 1 ft.
.TONIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.THU...N winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.THU NIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.FRI...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 ft or less.
.SAT...W winds around 5 kt...becoming S. Waves 1 ft or less.
.SUN...S winds 15 to 20 kt...becoming SW after midnight. Waves 1 to
2 ft. Showers likely through the night.

$$

ANZ533-160800-
Chesapeake Bay from North Beach to Drum Point-
1223 PM EDT Wed Oct 15 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.THIS AFTERNOON...N winds 15 kt with gusts to 25 kt. Waves 2 ft.
.TONIGHT...N winds 20 to 25 kt. Waves 4 ft.
.THU...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.THU NIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 4 ft.
.FRI...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.SAT...SW winds 5 kt...becoming S 10 to 15 kt. Waves 1 to 2 ft.
.SUN...S winds 10 to 15 kt...becoming SW 20 to 25 kt. Waves 2 ft...
building to 3 ft. Showers likely through the night.

$$

ANZ541-160800-
Choptank River to Cambridge MD and the Little Choptank River-
1223 PM EDT Wed Oct 15 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.THIS AFTERNOON...N winds 15 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft.
.THU...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.THU NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.FRI...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.SAT...W winds 5 kt...becoming S 10 to 15 kt. Waves 1 ft or less.
.SUN...S winds 15 to 20 kt. Waves 2 ft. Showers likely through the
night.

$$

ANZ542-160800-
Patuxent River to Broomes Island MD-
1223 PM EDT Wed Oct 15 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.THIS AFTERNOON...N winds 10 kt with gusts to 20 kt. Waves 1 ft.
.TONIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
.THU...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
.THU NIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
.FRI...N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.FRI NIGHT...NW winds 5 kt. Waves less than 1 ft.
.SAT...SW winds 5 kt...becoming S after midnight. Waves 1 ft.
.SUN...S winds 10 to 15 kt. Waves 1 ft. Showers likely through the
night.

$$

ANZ534-160800-
Chesapeake Bay from Drum Point to Smith Point-
1223 PM EDT Wed Oct 15 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.THIS AFTERNOON...N winds 15 kt with gusts to 25 kt. Waves 2 to
3 ft.
.TONIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft.
.THU...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft.
.THU NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft.
.FRI...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 to 2 ft.
.SAT...W winds 5 kt...becoming S 10 to 15 kt. Waves 1 to 2 ft.
.SUN...S winds 20 to 25 kt. Waves 3 ft. Showers likely through the
night.

$$

ANZ543-160800-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1223 PM EDT Wed Oct 15 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.THIS AFTERNOON...N winds 15 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
.THU...N winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
.THU NIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
.FRI...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.FRI NIGHT...N winds 10 to 15 kt. Waves 1 ft.
.SAT...W winds 5 kt...becoming S 10 to 15 kt. Waves 1 to 2 ft.
.SUN...S winds 20 to 25 kt. Waves 2 to 3 ft. Showers likely through
the night.

$$