857
FZUS51 KLWX 081639
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1239 PM EDT Wed Oct 8 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.

ANZ500-090800-
1239 PM EDT Wed Oct 8 2025

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

A strong cold front will sag south and east of the area through
this evening. High pressure will build in from the north tonight
into Thursday, then remain north of the region 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 likely be needed this weekend,
with gales possible at times Sunday into Monday.

$$

ANZ535-090800-
Tidal Potomac from Key Bridge to Indian Head-
1239 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

.THIS AFTERNOON...N winds 10 to 15 kt with gusts to 30 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. Waves 1 ft.
.THU NIGHT...NE winds around 5 kt. Waves 1 ft.
.FRI...E winds around 5 kt. Waves 1 ft.
.FRI NIGHT...E winds around 5 kt. Waves 1 ft.
.SAT...NE winds 10 to 15 kt. Waves 1 ft. A chance of showers through
the night.
.SUN...NE winds 15 to 20 kt...becoming N 10 to 15 kt after midnight.
Waves 1 ft. A chance of showers.

$$

ANZ536-090800-
Tidal Potomac from Indian Head to Cobb Island-
1239 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

.THIS AFTERNOON...NW winds 15 kt with gusts to 30 kt. Waves 2 ft.
Isolated showers.
.TONIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.THU...N winds 10 kt with gusts to 20 kt. Waves 1 ft.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 kt. Waves less than 1 ft.
.FRI NIGHT...E winds 5 kt. Waves less than 1 ft.
.SAT...NE winds 10 to 15 kt. Waves 1 ft. A chance of showers after
midnight.
.SUN...N winds 15 to 20 kt. Waves 1 ft. A chance of showers.

$$

ANZ537-090800-
Tidal Potomac from Cobb Island to Smith Point-
1239 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.THIS AFTERNOON...NW winds 15 to 20 kt with gusts to 30 kt. Waves
2 to 3 ft. Isolated showers.
.TONIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
.THU...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.THU NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.FRI...E winds 5 to 10 kt. Waves 1 to 2 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 20 to 25 kt. Waves 2 to 3 ft. A chance of showers.
.SUN...N winds 25 to 30 kt. Waves 3 ft. A chance of showers.

$$

ANZ530-090800-
Chesapeake Bay north of Pooles Island-
1239 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.THIS AFTERNOON...N winds 15 kt with gusts to 25 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 20 kt. Waves 1 ft.
.THU NIGHT...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 15 to 20 kt. Waves 1 to 2 ft. A chance of showers
through the night.
.SUN...NE winds 25 to 30 kt. Waves 1 to 2 ft. A chance of showers.

$$

ANZ531-090800-
Chesapeake Bay from Pooles Island to Sandy Point-
1239 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.THIS AFTERNOON...N winds 20 kt with gusts to 25 kt. Waves 2 to
3 ft.
.TONIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.THU...N winds 15 to 20 kt...becoming NE 10 kt late. Gusts up to
25 kt. Waves 2 to 3 ft.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 to 2 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers
through the night.
.SUN...N winds 25 to 30 kt. Waves 2 to 3 ft. A chance of showers.

$$

ANZ538-090800-
Patapsco River including Baltimore Harbor-
1239 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.THIS AFTERNOON...N winds 15 kt with gusts to 25 kt. Waves 1 ft.
.TONIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
.THU...N winds 10 kt with gusts to 20 kt. Waves 1 ft.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 kt. Waves less than 1 ft.
.FRI NIGHT...SE winds around 5 kt. Waves 1 ft or less.
.SAT...NE winds 10 to 15 kt. Waves 1 ft. A chance of showers through
the night.
.SUN...N winds 20 to 25 kt. Waves 1 ft. A chance of showers.

$$

ANZ539-090800-
Chester River to Queenstown MD-
1239 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.THIS AFTERNOON...N winds 15 kt with gusts to 25 kt. Waves 2 to
3 ft.
.TONIGHT...N winds 15 kt with gusts to 25 kt. Waves 2 to 3 ft.
.THU...N winds 10 to 15 kt. Gusts up to 25 kt until late afternoon.
Waves 2 ft.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft or less.
.FRI NIGHT...E winds 5 kt. Waves flat.
.SAT...NE winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers
through the night.
.SUN...N winds 20 to 25 kt. Waves 2 ft. A chance of showers.

$$

ANZ532-090800-
Chesapeake Bay from Sandy Point to North Beach-
1239 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.THIS AFTERNOON...N winds 20 kt with gusts to 25 kt. Waves 2 to
3 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...NE winds 10 kt. Waves 1 to 2 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 20 to 25 kt. Waves 1 to 2 ft... building to 3 ft
after midnight. A chance of showers through the night.
.SUN...NE winds 25 to 30 kt...becoming N after midnight. Waves 3 ft.
A chance of showers.

$$

ANZ540-090800-
Eastern Bay-
1239 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.THIS AFTERNOON...N winds 15 kt with gusts to 25 kt. Waves 2 ft.
.TONIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.THU...N winds 10 to 15 kt. Gusts up to 25 kt until late afternoon.
Waves 1 to 2 ft.
.THU NIGHT...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 15 to 20 kt. Waves 1 to 2 ft. A chance of showers
through the night.
.SUN...NE winds 25 to 30 kt...becoming N after midnight. Waves 2 ft.
A chance of showers.

$$

ANZ533-090800-
Chesapeake Bay from North Beach to Drum Point-
1239 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.THIS AFTERNOON...N winds 20 kt with gusts to 30 kt. Waves 3 ft.
Isolated showers.
.TONIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 4 ft.
.THU...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.THU NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 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 20 to 25 kt. Waves 1 to 2 ft... building to 3 ft. A
chance of showers through the night.
.SUN...NE winds 25 to 35 kt...becoming N 25 to 30 kt after midnight.
Waves 3 ft...building to 4 ft. A chance of showers.

$$

ANZ541-090800-
Choptank River to Cambridge MD and the Little Choptank River-
1239 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.THIS AFTERNOON...N winds 20 kt with gusts to 30 kt. Waves 2 to
3 ft. Isolated showers.
.TONIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
.THU...N winds 15 to 20 kt...becoming NE 10 kt late. Gusts up to
25 kt. Waves 2 ft.
.THU NIGHT...NE winds 10 to 15 kt with gusts to 20 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 20 to 25 kt. Waves 1 to 2 ft. A chance of showers
through the night.
.SUN...NE winds 25 to 30 kt...becoming N after midnight. Waves 2 to
3 ft. Showers likely through the day, then a chance of showers
through the night.

$$

ANZ542-090800-
Patuxent River to Broomes Island MD-
1239 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.THIS AFTERNOON...NW winds 15 kt with gusts to 25 kt. Waves 1 ft.
Isolated showers.
.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...NE winds 5 to 10 kt with gusts to 20 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 15 to 20 kt. Waves 1 ft. A chance of showers through
the night.
.SUN...NE winds 20 to 25 kt...becoming N after midnight. Waves 1 ft.
Showers likely through the day, then a chance of showers through the
night.

$$

ANZ534-090800-
Chesapeake Bay from Drum Point to Smith Point-
1239 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.THIS AFTERNOON...NW winds 20 to 25 kt with gusts to 30 kt. Waves
3 ft. Scattered showers.
.TONIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft.
.THU...N winds 15 to 20 kt. Gusts up to 30 kt... diminishing to
20 kt late. Waves 3 ft.
.THU NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 to
3 ft.
.FRI...E winds 10 to 15 kt. Waves 1 to 2 ft.
.FRI NIGHT...E winds 10 kt. Waves 1 ft.
.SAT...NE winds 20 to 25 kt. Waves 2 to 3 ft... building to 4 ft
after midnight. A chance of showers through the night. Showers
likely after midnight.
.SUN...N winds 25 to 35 kt...becoming 30 to 35 kt after midnight.
Waves 4 ft...building to 5 ft. Showers likely through the day, then
a chance of showers through the night.

$$

ANZ543-090800-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1239 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.THIS AFTERNOON...NW winds 20 kt with gusts to 30 kt. Waves 2 to
3 ft. Scattered showers.
.TONIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
.THU...NE winds 15 to 20 kt. Gusts up to 30 kt... diminishing to
20 kt in the afternoon. Waves 2 ft.
.THU NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft.
.FRI...E winds 10 to 15 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 20 to 25 kt. Waves 1 to 2 ft. A chance of showers
through the night. Showers likely after midnight.
.SUN...NE winds 25 to 35 kt...becoming N 25 to 30 kt after midnight.
Waves 2 to 3 ft. Showers likely .

$$