188
FZUS51 KLWX 281436
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1035 AM EDT Thu Aug 28 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.

ANZ500-282000-
1035 AM EDT Thu Aug 28 2025

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

A cold front will approach the region tonight, then cross the region
 Friday. High pressure will return for the weekend. Small Craft
Advisories may be needed in north to northwest flow Friday night.

$$

ANZ535-282000-
Tidal Potomac from Key Bridge to Indian Head-
1035 AM EDT Thu Aug 28 2025

.REST OF TODAY...S winds 5 kt. Waves less than 1 ft.
.TONIGHT...SW winds 5 kt. Waves less than 1 ft.
.FRI...W winds around 5 kt. Waves 1 ft.
.FRI NIGHT...N winds 5 kt. Waves less than 1 ft.
.SAT...N winds 5 kt. Waves less than 1 ft.
.SAT NIGHT...NE winds around 5 kt. Waves 1 ft.
.SUN...NE winds around 5 kt. Waves 1 ft or less.
.MON...E winds around 5 kt. Waves 1 ft.

$$

ANZ536-282000-
Tidal Potomac from Indian Head to Cobb Island-
1035 AM EDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...

.REST OF TODAY...S winds 5 kt. Waves less than 1 ft.
.TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt until early
morning. Waves 1 ft.
.FRI...W winds 5 kt. Waves less than 1 ft.
.FRI NIGHT...N winds 5 kt. Waves less than 1 ft.
.SAT...N winds 5 kt. Waves less than 1 ft.
.SAT NIGHT...NE winds around 5 kt. Waves 1 ft.
.SUN...NE winds around 5 kt. Waves 1 ft.
.MON...E winds around 5 kt. Waves 1 ft.

$$

ANZ537-282000-
Tidal Potomac from Cobb Island to Smith Point-
1035 AM EDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...

.REST OF TODAY...SW winds 10 kt. Waves 1 ft.
.TONIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.FRI...W winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...NE winds 5 to 10 kt. Waves 1 ft or less.
.SAT...N winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...NE winds 5 kt. Waves less than 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft.
.MON...E winds 5 to 10 kt. Waves 1 ft.

$$

ANZ530-282000-
Chesapeake Bay north of Pooles Island-
1035 AM EDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...

.REST OF TODAY...SW winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...S winds 10 to 15 kt with gusts to 20 kt... becoming SW
5 to 10 kt late. Waves 1 ft.
.FRI...W winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.SAT...N winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...N winds 5 kt. Waves flat.
.SUN...N winds around 5 kt. Waves flat.
.MON...E winds 5 kt. Waves flat.

$$

ANZ531-282000-
Chesapeake Bay from Pooles Island to Sandy Point-
1035 AM EDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH LATE TONIGHT...

.REST OF TODAY...SW winds 5 to 10 kt...becoming S with gusts to
20 kt late. Waves 1 ft or less...building to 2 ft late.
.TONIGHT...S winds 10 to 15 kt...becoming SW 5 to 10 kt late. Gusts
up to 20 kt. Waves 2 ft.
.FRI...W winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.SAT...N winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft or less.
.MON...NE winds 5 kt...becoming SE. Waves 1 ft.

$$

ANZ538-282000-
Patapsco River including Baltimore Harbor-
1035 AM EDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...

.REST OF TODAY...S winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt until early
morning. Waves 1 ft.
.FRI...W winds 5 to 10 kt. Waves 1 ft or less.
.FRI NIGHT...N winds 5 kt. Waves less than 1 ft.
.SAT...N winds 5 kt. Waves flat.
.SAT NIGHT...NE winds 5 kt. Waves flat.
.SUN...NE winds around 5 kt. Waves flat.
.MON...E winds around 5 kt. Waves 1 ft or less.

$$

ANZ539-282000-
Chester River to Queenstown MD-
1035 AM EDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...

.REST OF TODAY...SW winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...S winds 10 to 15 kt...becoming SW late. Gusts up to
20 kt. Waves 2 ft.
.FRI...W winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.SAT...N winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...NE winds 5 kt. Waves less than 1 ft.
.SUN...NE winds around 5 kt. Waves 1 ft or less.
.MON...E winds 5 kt. Waves less than 1 ft.

$$

ANZ532-282000-
Chesapeake Bay from Sandy Point to North Beach-
1035 AM EDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH LATE TONIGHT...

.REST OF TODAY...S winds 5 to 10 kt...increasing to 15 kt with gusts
to 20 kt late. Waves 1 to 2 ft.
.TONIGHT...S winds 10 to 15 kt...becoming SW late. Gusts up to 25 kt
until early morning. Waves 2 to 3 ft.
.FRI...W winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.SAT...N winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...NE winds 5 kt. Waves less than 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft or less.
.MON...E winds 5 to 10 kt. Waves 1 ft.

$$

ANZ540-282000-
Eastern Bay-
1035 AM EDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...

.REST OF TODAY...SW winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...S winds 10 to 15 kt...becoming SW late. Gusts up to
20 kt. Waves 2 ft.
.FRI...W winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.SAT...N winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...NE winds 5 kt. Waves flat.
.SUN...NE winds 5 to 10 kt. Waves 1 ft or less.
.MON...E winds 5 kt. Waves less than 1 ft.

$$

ANZ533-282000-
Chesapeake Bay from North Beach to Drum Point-
1035 AM EDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH LATE TONIGHT...

.REST OF TODAY...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft.
.TONIGHT...S winds 10 to 15 kt...becoming SW late. Gusts up to
25 kt. Waves 2 ft.
.FRI...W winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.SAT...N winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft.
.MON...E winds 5 to 10 kt. Waves 1 ft.

$$

ANZ541-282000-
Choptank River to Cambridge MD and the Little Choptank River-
1035 AM EDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...

.REST OF TODAY...SW winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...S winds 10 to 15 kt...becoming SW late. Gusts up to
20 kt. Waves 2 ft.
.FRI...W winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.SAT...N winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...NE winds 5 kt. Waves less than 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft or less.
.MON...NE winds 5 to 10 kt. Waves 1 ft.

$$

ANZ542-282000-
Patuxent River to Broomes Island MD-
1035 AM EDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...

.REST OF TODAY...S winds 10 kt. Waves 1 ft.
.TONIGHT...S winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.FRI...W winds 5 kt. Waves less than 1 ft.
.FRI NIGHT...N winds 5 kt. Waves less than 1 ft.
.SAT...N winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...NE winds around 5 kt. Waves 1 ft.
.SUN...NE winds around 5 kt. Waves 1 ft.
.MON...E winds 5 to 10 kt. Waves 1 ft.

$$

ANZ534-282000-
Chesapeake Bay from Drum Point to Smith Point-
1035 AM EDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH LATE TONIGHT...

.REST OF TODAY...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft.
.TONIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 3 ft.
.FRI...W winds 5 to 10 kt. Waves 1 to 2 ft.
.FRI NIGHT...SE winds 5 to 10 kt...becoming N after midnight. Waves
1 ft.
.SAT...N winds 5 to 10 kt. Waves 1 to 2 ft.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft.
.MON...E winds 5 to 10 kt. Waves 1 ft.

$$

ANZ543-282000-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1035 AM EDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH LATE TONIGHT...

.REST OF TODAY...SW winds 10 to 15 kt with gusts to 20 kt. Waves
1 ft.
.TONIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.FRI...W winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...S winds 5 to 10 kt...becoming NE after midnight. Waves
1 ft.
.SAT...N winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft.
.MON...E winds 5 to 10 kt. Waves 1 ft.

$$