235
FZUS51 KLWX 171435
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1035 AM EDT Sat May 17 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.

ANZ500-172000-
1035 AM EDT Sat May 17 2025

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

A cold front will cross the area by this evening. High pressure will
 briefly return overnight and Sunday before a secondary cold front
moves through early Monday morning. High pressure will settle to the
 north by early next week. A strong area of low pressure will likely
 move across the region mid next week.

$$

ANZ535-172000-
Tidal Potomac from Key Bridge to Indian Head-
1035 AM EDT Sat May 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
AFTERNOON...

.REST OF TODAY...SW winds 15 kt. Gusts up to 20 kt... increasing to
30 kt this afternoon. Waves 1 ft.
.TONIGHT...W winds 10 to 15 kt with gusts to 25 kt... diminishing to
5 kt late. Waves 1 ft.
.SUN...W winds 10 to 15 kt. Gusts up to 20 kt... increasing to 25 kt
in the afternoon. Waves 1 ft.
.SUN NIGHT...NW winds 5 to 10 kt. Gusts up to 25 kt in the evening.
Waves 1 ft.
.MON...NW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.MON NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.TUE...NE winds around 5 kt. Waves 1 ft. A chance of showers in the
evening. Showers likely after midnight.
.WED...NE winds 5 to 10 kt. Waves 1 ft. Showers.

$$

ANZ536-172000-
Tidal Potomac from Indian Head to Cobb Island-
1035 AM EDT Sat May 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
AFTERNOON...

.REST OF TODAY...SW winds 15 kt with gusts to 25 kt. Waves 2 ft.
.TONIGHT...W winds 10 to 15 kt. Gusts up to 20 kt until early
morning. Waves 1 ft.
.SUN...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SUN NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Waves 1 ft.
.MON...NW winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.TUE...N winds 5 to 10 kt...becoming E. Waves 1 ft. A chance of
showers in the evening. Showers likely after midnight.
.WED...E winds 5 to 10 kt...becoming N after midnight. Waves 1 ft.
Showers.

$$

ANZ537-172000-
Tidal Potomac from Cobb Island to Smith Point-
1035 AM EDT Sat May 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
AFTERNOON...

.REST OF TODAY...SW winds 15 kt with gusts to 25 kt. Waves 2 ft.
.TONIGHT...W winds 10 to 15 kt...becoming NW 5 to 10 kt after
midnight. Gusts up to 20 kt. Waves 1 to 2 ft.
.SUN...W winds 10 to 15 kt. Gusts up to 20 kt. Waves 1 to 2 ft.
.SUN NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft.
.MON...NW winds 10 kt. Waves 1 ft.
.MON NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.TUE...NE winds 5 to 10 kt...becoming E after midnight. Waves 1 ft.
A chance of showers in the evening. Showers likely after midnight.
.WED...E winds 10 to 15 kt...becoming N after midnight. Waves 2 ft.
Showers likely in the morning, then showers.

$$

ANZ530-172000-
Chesapeake Bay north of Pooles Island-
1035 AM EDT Sat May 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
AFTERNOON...

.REST OF TODAY...SW winds 10 to 15 kt. Gusts up to 25 kt this
afternoon. Waves 2 ft.
.TONIGHT...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SUN...W winds 10 to 15 kt. Gusts up to 20 kt... increasing to 25 kt
in the afternoon. Waves 2 ft.
.SUN NIGHT...NW winds 10 to 15 kt. Gusts up to 25 kt in the evening.
Waves 1 to 2 ft.
.MON...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.MON NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.TUE...N winds 5 to 10 kt...becoming E after midnight. Waves 1 ft. A
chance of showers after midnight.
.WED...E winds 10 to 15 kt...becoming NE after midnight. Waves 1 to
2 ft. Showers.

$$

ANZ531-172000-
Chesapeake Bay from Pooles Island to Sandy Point-
1035 AM EDT Sat May 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
AFTERNOON...

.REST OF TODAY...SW winds 10 to 15 kt. Gusts up to 20 kt...
increasing to 25 kt late. Waves 2 ft.
.TONIGHT...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.SUN...W winds 10 to 15 kt. Gusts up to 20 kt... increasing to 25 kt
in the afternoon. Waves 2 ft.
.SUN NIGHT...NW winds 10 to 15 kt. Gusts up to 25 kt in the evening.
Waves 2 ft.
.MON...NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.MON NIGHT...NW winds 10 kt. Waves 1 to 2 ft.
.TUE...N winds 5 to 10 kt...becoming E. Waves 1 ft. A chance of
showers after midnight.
.WED...E winds 10 to 15 kt...becoming NE after midnight. Waves 1 to
2 ft. Showers.

$$

ANZ538-172000-
Patapsco River including Baltimore Harbor-
1035 AM EDT Sat May 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
AFTERNOON...

.REST OF TODAY...SW winds 10 to 15 kt with gusts to 20 kt. Waves
1 ft.
.TONIGHT...W winds 5 to 10 kt. Gusts up to 20 kt until early
morning. Waves 1 ft.
.SUN...W winds 10 to 15 kt. Gusts up to 20 kt... increasing to 25 kt
late. Waves 1 ft.
.SUN NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.MON...NW winds 10 kt. Waves 1 ft.
.MON NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.TUE...N winds 5 to 10 kt...becoming E. Waves 1 ft or less. A chance
of showers after midnight.
.WED...E winds 5 to 10 kt. Waves 1 ft. Showers.

$$

ANZ539-172000-
Chester River to Queenstown MD-
1035 AM EDT Sat May 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
AFTERNOON...

.REST OF TODAY...SW winds 10 to 15 kt with gusts to 20 kt. Waves
2 ft.
.TONIGHT...W winds 10 kt with gusts to 20 kt. Waves 2 ft.
.SUN...W winds 10 to 15 kt. Gusts up to 20 kt... increasing to 25 kt
late. Waves 2 ft.
.SUN NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.MON...NW winds 10 kt. Waves 2 ft.
.MON NIGHT...NW winds 10 kt. Waves 1 to 2 ft.
.TUE...N winds 5 to 10 kt...becoming E. Waves 1 ft or less. A chance
of showers after midnight.
.WED...E winds 10 to 15 kt...becoming NE after midnight. Waves 1 ft.
Showers.

$$

ANZ532-172000-
Chesapeake Bay from Sandy Point to North Beach-
1035 AM EDT Sat May 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
AFTERNOON...

.REST OF TODAY...SW winds 15 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...W winds 10 to 15 kt...becoming NW after midnight. Gusts
up to 20 kt. Waves 1 to 2 ft.
.SUN...W winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SUN NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft.
.MON...NW winds 10 kt. Waves 1 ft.
.MON NIGHT...N winds 10 to 15 kt. Waves 1 ft.
.TUE...N winds 5 to 10 kt...becoming E. Waves 1 ft. A chance of
showers after midnight.
.WED...E winds 10 to 15 kt...becoming NE. Waves 2 ft. Showers.

$$

ANZ540-172000-
Eastern Bay-
1035 AM EDT Sat May 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
AFTERNOON...

.REST OF TODAY...SW winds 15 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...W winds 10 to 15 kt...becoming NW after midnight. Gusts
up to 20 kt. Waves 1 to 2 ft.
.SUN...W winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SUN NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft.
.MON...NW winds 10 kt. Waves 1 ft.
.MON NIGHT...N winds 10 kt. Waves 1 ft.
.TUE...N winds 5 to 10 kt...becoming SE. Waves 1 ft or less. A
chance of showers after midnight.
.WED...E winds 10 to 15 kt...becoming N after midnight. Waves 1 ft.
Showers.

$$

ANZ533-172000-
Chesapeake Bay from North Beach to Drum Point-
1035 AM EDT Sat May 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
AFTERNOON...

.REST OF TODAY...SW winds 15 kt with gusts to 25 kt. Waves 2 ft.
.TONIGHT...W winds 10 to 15 kt...becoming NW after midnight. Gusts
up to 20 kt. Waves 1 to 2 ft.
.SUN...W winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SUN NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.MON...NW winds 10 kt. Waves 2 ft.
.MON NIGHT...N winds 10 to 15 kt. Waves 1 to 2 ft.
.TUE...N winds 5 to 10 kt...becoming E. Waves 1 to 2 ft. A chance of
showers in the evening. Showers likely after midnight.
.WED...E winds 10 to 15 kt...becoming NE. Waves 2 ft. Showers.

$$

ANZ541-172000-
Choptank River to Cambridge MD and the Little Choptank River-
1035 AM EDT Sat May 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
AFTERNOON...

.REST OF TODAY...SW winds 15 kt with gusts to 25 kt. Waves 2 ft.
.TONIGHT...W winds 10 to 15 kt...becoming NW after midnight. Gusts
up to 20 kt. Waves 1 to 2 ft.
.SUN...W winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SUN NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft.
.MON...NW winds 10 to 15 kt. Waves 1 ft.
.MON NIGHT...N winds 10 to 15 kt. Waves 1 ft.
.TUE...NE winds 5 to 10 kt...becoming E after midnight. Waves 1 ft.
A chance of showers after midnight.
.WED...E winds 10 to 15 kt...becoming N after midnight. Waves 1 ft.
Showers.

$$

ANZ542-172000-
Patuxent River to Broomes Island MD-
1035 AM EDT Sat May 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
AFTERNOON...

.REST OF TODAY...SW winds 10 to 15 kt with gusts to 20 kt. Waves
1 ft.
.TONIGHT...W winds 10 to 15 kt with gusts to 20 kt... becoming NW
5 to 10 kt after midnight. Waves 1 ft.
.SUN...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SUN NIGHT...NW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.MON...NW winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.TUE...NE winds 5 to 10 kt...becoming E after midnight. Waves 1 ft.
A chance of showers in the evening. Showers likely after midnight.
.WED...E winds 10 kt...becoming N after midnight. Waves 1 ft.
Showers.

$$

ANZ534-172000-
Chesapeake Bay from Drum Point to Smith Point-
1035 AM EDT Sat May 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
AFTERNOON...

.REST OF TODAY...SW winds 15 kt with gusts to 25 kt. Waves 2 ft.
.TONIGHT...W winds 10 to 15 kt...becoming NW after midnight. Gusts
up to 20 kt. Waves 2 ft.
.SUN...W winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft.
.SUN NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.MON...NW winds 10 to 15 kt. Waves 2 ft.
.MON NIGHT...N winds 10 to 15 kt. Waves 2 ft.
.TUE...N winds 10 to 15 kt...becoming E 5 to 10 kt. Waves 1 to 2 ft.
A chance of showers through the night.
.WED...E winds 10 to 15 kt...becoming N after midnight. Waves 2 ft.
Showers likely in the morning, then showers.

$$

ANZ543-172000-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1035 AM EDT Sat May 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
AFTERNOON...

.REST OF TODAY...SW winds 15 kt with gusts to 25 kt. Waves 2 ft.
.TONIGHT...W winds 10 to 15 kt...becoming NW after midnight. Gusts
up to 20 kt. Waves 1 to 2 ft.
.SUN...W winds 10 to 15 kt. Gusts up to 20 kt... increasing to 25 kt
in the afternoon. Waves 2 ft.
.SUN NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft.
.MON...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.MON NIGHT...N winds 10 kt. Waves 1 ft.
.TUE...N winds 5 to 10 kt...becoming E after midnight. Waves 1 ft. A
chance of showers after midnight.
.WED...E winds 10 to 15 kt...becoming N after midnight. Waves 1 ft.
Showers likely in the morning, then showers.

$$