873
FZUS51 KLWX 050857
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
457 AM EDT Sat Sep 5 2026

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.

ANZ500-052300-
457 AM EDT Sat Sep 5 2026

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

A few spotty shower or t-storm is possible heading into early
Saturday morning as the front sags south across the waters. Winds
will switch from the west to northwest and eventually north Saturday
 afternoon at less than 15 knots. Marginal small craft conditions
return late SUnday evening into Monday due to channeling.

$$

ANZ535-052300-
Tidal Potomac from Key Bridge to Indian Head-
457 AM EDT Sat Sep 5 2026

.REST OF THE OVERNIGHT...NW winds 5 kt. Waves less than 1 ft.
.TODAY...N winds around 5 kt. Waves 1 ft.
.TONIGHT...NE winds around 5 kt. Waves 1 ft.
.SUN...NE winds 5 kt. Waves less than 1 ft.
.SUN NIGHT...E winds around 5 kt. Waves 1 ft or less.
.MON...NE winds around 5 kt. Waves 1 ft.
.MON NIGHT...S winds around 5 kt. Waves 1 ft or less.
.TUE...S winds around 5 kt. Waves 1 ft.
.WED...SW winds 5 to 10 kt. Waves 1 ft.

$$

ANZ536-052300-
Tidal Potomac from Indian Head to Cobb Island-
457 AM EDT Sat Sep 5 2026

.REST OF THE OVERNIGHT...NW winds 5 kt. Waves less than 1 ft.
.TODAY...N winds 5 kt. Waves less than 1 ft. A chance of showers.
.TONIGHT...NE winds 5 kt. Waves less than 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.MON...NE winds around 5 kt. Waves 1 ft.
.MON NIGHT...S winds around 5 kt. Waves 1 ft.
.TUE...S winds around 5 kt. Waves 1 ft.
.WED...SW winds 10 to 15 kt. Waves 1 ft.

$$

ANZ537-052300-
Tidal Potomac from Cobb Island to Smith Point-
457 AM EDT Sat Sep 5 2026

.REST OF THE OVERNIGHT...NW winds 10 kt. Waves 1 ft.
.TODAY...N winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...E winds 5 to 10 kt. Waves 1 to 2 ft.
.MON...NE winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...S winds around 5 kt. Waves 1 ft.
.TUE...S winds 5 to 10 kt. Waves 1 ft or less.
.WED...SW winds 10 to 15 kt. Waves 1 to 2 ft.

$$

ANZ530-052300-
Chesapeake Bay north of Pooles Island-
457 AM EDT Sat Sep 5 2026

.REST OF THE OVERNIGHT...N winds 5 kt. Waves less than 1 ft.
.TODAY...N winds 5 kt. Waves less than 1 ft.
.TONIGHT...N winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...E winds around 5 kt. Waves 1 ft.
.MON...N winds around 5 kt. Waves 1 ft.
.MON NIGHT...W winds around 5 kt. Waves 1 ft or less.
.TUE...SW winds 5 to 10 kt. Waves 1 ft.
.WED...SW winds 15 to 20 kt. Waves 1 to 2 ft.

$$

ANZ531-052300-
Chesapeake Bay from Pooles Island to Sandy Point-
457 AM EDT Sat Sep 5 2026

.REST OF THE OVERNIGHT...N winds 10 kt. Waves 1 ft.
.TODAY...N winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.MON...NE winds around 5 kt. Waves 1 ft or less.
.MON NIGHT...S winds around 5 kt. Waves flat.
.TUE...SW winds 5 to 10 kt. Waves 1 ft or less.
.WED...SW winds 15 to 20 kt. Waves 1 to 2 ft.

$$

ANZ538-052300-
Patapsco River including Baltimore Harbor-
457 AM EDT Sat Sep 5 2026

.REST OF THE OVERNIGHT...NW winds 5 kt. Waves flat.
.TODAY...N winds 5 kt. Waves less than 1 ft.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft or less.
.SUN...NE winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...E winds around 5 kt. Waves 1 ft or less.
.MON...NE winds around 5 kt. Waves flat.
.MON NIGHT...SW winds around 5 kt. Waves flat.
.TUE...SW winds 5 to 10 kt. Waves 1 ft or less.
.WED...SW winds 10 to 15 kt. Waves 1 ft.

$$

ANZ539-052300-
Chester River to Queenstown MD-
457 AM EDT Sat Sep 5 2026

.REST OF THE OVERNIGHT...NW winds 10 kt. Waves 1 ft.
.TODAY...N winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...E winds around 5 kt. Waves 1 ft or less.
.MON...NE winds around 5 kt. Waves flat.
.MON NIGHT...S winds around 5 kt. Waves flat.
.TUE...SW winds 5 to 10 kt. Waves 1 ft or less.
.WED...SW winds 10 to 15 kt. Waves 1 to 2 ft.

$$

ANZ532-052300-
Chesapeake Bay from Sandy Point to North Beach-
457 AM EDT Sat Sep 5 2026

.REST OF THE OVERNIGHT...NW winds 10 kt. Waves 1 ft.
.TODAY...N winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds 10 kt. Waves 1 ft.
.SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.MON...NE winds 5 kt. Waves less than 1 ft.
.MON NIGHT...S winds 5 kt. Waves less than 1 ft.
.TUE...SW winds 5 to 10 kt. Waves 1 ft.
.WED...SW winds 15 to 20 kt. Waves 1 to 2 ft... building to 3 ft.

$$

ANZ540-052300-
Eastern Bay-
457 AM EDT Sat Sep 5 2026

.REST OF THE OVERNIGHT...NW winds 10 kt. Waves 1 ft.
.TODAY...N winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft or less.
.MON...NE winds around 5 kt. Waves flat.
.MON NIGHT...S winds around 5 kt. Waves flat.
.TUE...SW winds 5 to 10 kt. Waves 1 ft or less.
.WED...SW winds 10 to 15 kt. Waves 1 to 2 ft.

$$

ANZ533-052300-
Chesapeake Bay from North Beach to Drum Point-
457 AM EDT Sat Sep 5 2026

.REST OF THE OVERNIGHT...NW winds 10 kt. Waves 1 ft.
.TODAY...N winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds 10 kt. Waves 1 ft.
.SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.MON...NE winds 5 kt. Waves less than 1 ft.
.MON NIGHT...S winds around 5 kt. Waves 1 ft or less.
.TUE...SW winds 10 to 15 kt. Waves 1 ft.
.WED...SW winds 15 to 20 kt. Waves 1 to 2 ft.

$$

ANZ541-052300-
Choptank River to Cambridge MD and the Little Choptank River-
457 AM EDT Sat Sep 5 2026

.REST OF THE OVERNIGHT...NW winds 10 kt. Waves 1 ft.
.TODAY...N winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.MON...NE winds around 5 kt. Waves 1 ft or less.
.MON NIGHT...S winds around 5 kt. Waves flat.
.TUE...SW winds 5 to 10 kt. Waves 1 ft or less.
.WED...SW winds 15 to 20 kt. Waves 1 to 2 ft.

$$

ANZ542-052300-
Patuxent River to Broomes Island MD-
457 AM EDT Sat Sep 5 2026

.REST OF THE OVERNIGHT...NW winds 5 kt. Waves less than 1 ft.
.TODAY...N winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...NE winds 5 kt. Waves less than 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.MON...NE winds around 5 kt. Waves 1 ft.
.MON NIGHT...S winds around 5 kt. Waves 1 ft.
.TUE...S winds around 5 kt. Waves 1 ft.
.WED...SW winds 5 to 10 kt. Waves 1 ft.

$$

ANZ534-052300-
Chesapeake Bay from Drum Point to Smith Point-
457 AM EDT Sat Sep 5 2026

.REST OF THE OVERNIGHT...NW winds 10 kt. Waves 2 ft.
.TODAY...N winds 5 to 10 kt. Waves 1 to 2 ft.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds 10 kt. Waves 1 ft.
.SUN NIGHT...E winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.MON...NE winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.TUE...SW winds around 5 kt...becoming S 10 to 15 kt. Waves 1 to
2 ft.
.WED...SW winds 15 to 20 kt. Waves 1 to 2 ft... building to 3 ft.

$$

ANZ543-052300-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
457 AM EDT Sat Sep 5 2026

.REST OF THE OVERNIGHT...NW winds 10 kt. Waves 1 ft.
.TODAY...N winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Waves 1 ft.
.MON...NE winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.TUE...SW winds 10 to 15 kt. Waves 1 ft or less.
.WED...SW winds 15 to 20 kt. Waves 1 to 2 ft... building to 3 ft
after midnight.

$$