303
FZUS51 KLWX 241820
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
220 PM EDT Sat May 24 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.

ANZ500-250800-
220 PM EDT Sat May 24 2025

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

High pressure will attempt to build in from the northwest through
tonight, then a warm front will approach from the southwest Sunday.
Another system across the southern United States may impact the area
 early next week. Small Craft Advisories may be needed for portions
of the waters Tuesday night into Wednesday.

$$

ANZ535-250800-
Tidal Potomac from Key Bridge to Indian Head-
220 PM EDT Sat May 24 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.THIS AFTERNOON...NW winds 10 kt with gusts to 20 kt. Waves 1 ft.
.TONIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt early in the
evening. Waves 1 ft.
.SUN...NW winds 5 kt. Waves less than 1 ft.
.SUN NIGHT...NW winds around 5 kt. Waves 1 ft. Scattered showers.
.MON...N winds around 5 kt. Waves 1 ft.
.MON NIGHT...NE winds around 5 kt. Waves 1 ft or less.
.TUE...SE winds around 5 kt. Waves 1 ft. A chance of showers in the
evening. Showers likely after midnight.
.WED...SE winds 5 to 10 kt. Waves 1 ft. Showers through the day,
then showers likely through the night.

$$

ANZ536-250800-
Tidal Potomac from Indian Head to Cobb Island-
220 PM EDT Sat May 24 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.THIS AFTERNOON...NW winds 10 kt with gusts to 20 kt. Waves 1 ft.
.TONIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.SUN...NW winds 5 kt. Waves less than 1 ft.
.SUN NIGHT...NW winds around 5 kt. Waves 1 ft. Scattered showers.
.MON...N winds 5 kt. Waves less than 1 ft.
.MON NIGHT...SE winds around 5 kt. Waves 1 ft or less.
.TUE...SE winds around 5 kt. Waves 1 ft. A chance of showers through
the night. Showers likely after midnight.
.WED...SE winds 5 to 10 kt. Waves 1 ft. Showers through the day,
then showers likely through the night.

$$

ANZ537-250800-
Tidal Potomac from Cobb Island to Smith Point-
220 PM EDT Sat May 24 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.THIS AFTERNOON...NW winds 10 kt. Waves 2 ft.
.TONIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...NW winds 5 kt. Waves less than 1 ft. Scattered showers.
.MON...N winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...SE winds around 5 kt. Waves 1 ft or less.
.TUE...SE winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
in the evening. Showers likely after midnight.
.WED...SE winds 5 to 10 kt. Waves 1 to 2 ft. Showers through the
day, then showers likely through the night.

$$

ANZ530-250800-
Chesapeake Bay north of Pooles Island-
220 PM EDT Sat May 24 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.THIS AFTERNOON...NW winds 15 kt with gusts to 20 kt. Waves 1 ft.
.TONIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt early in the
evening. Waves 1 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...NW winds around 5 kt. Waves 1 ft.
.MON...N winds 5 kt. Waves less than 1 ft.
.MON NIGHT...N winds around 5 kt. Waves 1 ft or less.
.TUE...SE winds around 5 kt. Waves 1 ft or less. A chance of showers
after midnight.
.WED...SE winds 5 to 10 kt. Waves 1 ft. Showers likely.

$$

ANZ531-250800-
Chesapeake Bay from Pooles Island to Sandy Point-
220 PM EDT Sat May 24 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.THIS AFTERNOON...NW winds 15 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Waves 1 to 2 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...NW winds 5 kt. Waves less than 1 ft.
.MON...N winds 5 kt. Waves less than 1 ft.
.MON NIGHT...NE winds around 5 kt. Waves flat.
.TUE...SE winds around 5 kt...increasing to 5 to 10 kt. Waves 1 ft
or less. A chance of showers in the evening. Showers likely after
midnight.
.WED...SE winds 5 to 10 kt. Waves 1 ft. Showers likely.

$$

ANZ538-250800-
Patapsco River including Baltimore Harbor-
220 PM EDT Sat May 24 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.THIS AFTERNOON...NW winds 10 to 15 kt with gusts to 20 kt. Waves
1 ft.
.TONIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...NW winds 5 kt. Waves flat.
.MON...N winds 5 kt. Waves flat.
.MON NIGHT...NE winds around 5 kt. Waves flat.
.TUE...SE winds around 5 kt. Waves 1 ft or less. A chance of showers
in the evening. Showers likely after midnight.
.WED...SE winds 5 to 10 kt. Waves 1 ft. Showers likely.

$$

ANZ539-250800-
Chester River to Queenstown MD-
220 PM EDT Sat May 24 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.THIS AFTERNOON...NW winds 10 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...NW winds 5 to 10 kt. Waves 1 to 2 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...W winds 5 kt. Waves less than 1 ft.
.MON...N winds 5 kt. Waves less than 1 ft.
.MON NIGHT...NE winds around 5 kt. Waves flat.
.TUE...SE winds around 5 kt. Waves 1 ft or less. A chance of showers
in the evening. Showers likely after midnight.
.WED...SE winds 5 to 10 kt. Waves 1 ft. Showers likely.

$$

ANZ532-250800-
Chesapeake Bay from Sandy Point to North Beach-
220 PM EDT Sat May 24 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.THIS AFTERNOON...NW winds 15 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...NW winds 5 to 10 kt. Waves 1 to 2 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...W winds 5 kt. Waves less than 1 ft. Scattered showers.
.MON...N winds 5 kt. Waves less than 1 ft.
.MON NIGHT...E winds around 5 kt. Waves flat.
.TUE...NE winds around 5 kt...becoming SE. Waves 1 ft or less. A
chance of showers in the evening. Showers likely after midnight.
.WED...SE winds 5 to 10 kt. Waves 1 ft. Showers through the day,
then showers likely through the night.

$$

ANZ540-250800-
Eastern Bay-
220 PM EDT Sat May 24 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.THIS AFTERNOON...NW winds 10 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...W winds 5 kt. Waves less than 1 ft. Scattered showers.
.MON...N winds 5 kt. Waves less than 1 ft.
.MON NIGHT...E winds around 5 kt. Waves flat.
.TUE...SE winds around 5 kt. Waves 1 ft or less. A chance of showers
in the evening. Showers likely after midnight.
.WED...SE winds 5 to 10 kt. Waves 1 ft. Showers likely.

$$

ANZ533-250800-
Chesapeake Bay from North Beach to Drum Point-
220 PM EDT Sat May 24 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.THIS AFTERNOON...NW winds 15 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...NW winds 5 to 10 kt. Waves 1 to 2 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...W winds 5 kt. Waves less than 1 ft. Scattered showers.
.MON...N winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...SE winds around 5 kt. Waves 1 ft or less.
.TUE...N winds around 5 kt...becoming SE. Waves 1 ft or less. A
chance of showers in the evening. Showers likely after midnight.
.WED...SE winds 5 to 10 kt. Waves 1 to 2 ft. Showers through the
day, then showers likely through the night.

$$

ANZ541-250800-
Choptank River to Cambridge MD and the Little Choptank River-
220 PM EDT Sat May 24 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.THIS AFTERNOON...NW winds 10 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...NW winds 5 to 10 kt. Waves 1 to 2 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...W winds 5 kt. Waves less than 1 ft. Scattered showers.
.MON...N winds 5 kt. Waves less than 1 ft.
.MON NIGHT...E winds around 5 kt. Waves flat.
.TUE...S winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
in the evening. Showers likely after midnight.
.WED...SE winds 5 to 10 kt. Waves 1 ft. Showers through the day,
then showers likely through the night.

$$

ANZ542-250800-
Patuxent River to Broomes Island MD-
220 PM EDT Sat May 24 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.THIS AFTERNOON...NW winds 10 kt. Waves 1 ft.
.TONIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.SUN...NW winds 5 kt. Waves less than 1 ft.
.SUN NIGHT...W winds around 5 kt. Waves 1 ft. Scattered showers.
.MON...N winds 5 kt. Waves less than 1 ft.
.MON NIGHT...SE winds around 5 kt. Waves 1 ft or less.
.TUE...NE winds around 5 kt...becoming SE. Waves 1 ft. A chance of
showers in the evening. Showers likely after midnight.
.WED...SE winds 5 to 10 kt. Waves 1 ft. Showers through the day,
then showers likely through the night.

$$

ANZ534-250800-
Chesapeake Bay from Drum Point to Smith Point-
220 PM EDT Sat May 24 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.THIS AFTERNOON...NW winds 10 to 15 kt with gusts to 20 kt. Waves
2 ft.
.TONIGHT...NW winds 10 kt. Waves 1 to 2 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...W winds 5 to 10 kt. Waves 1 ft. Scattered showers.
.MON...N winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...SE winds 5 kt. Waves less than 1 ft.
.TUE...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers in the
evening. Showers likely after midnight.
.WED...SE winds 10 to 15 kt. Waves 2 ft. Showers through the day,
then showers likely through the night.

$$

ANZ543-250800-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
220 PM EDT Sat May 24 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.THIS AFTERNOON...NW winds 15 kt with gusts to 20 kt. Waves 1 ft.
.TONIGHT...NW winds 10 kt. Waves 1 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...W winds 5 kt. Waves less than 1 ft. Scattered showers.
.MON...N winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...SE winds 5 kt. Waves less than 1 ft.
.TUE...SE winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
in the evening. Showers likely after midnight.
.WED...SE winds 10 to 15 kt. Waves 1 ft. Showers through the day,
then showers likely through the night.

$$