317
FZUS51 KLWX 050834
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
434 AM EDT Sun Oct 5 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.

ANZ500-052300-
434 AM EDT Sun Oct 5 2025

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

High pressure will build offshore this weekend. A cold front  tracks
across the waters by Wednesday. A stronger area of Canadian  high
pressure builds in from the west thereafter. Small Craft  Advisories
may be needed Tuesday through Thursday.

$$

ANZ535-052300-
Tidal Potomac from Key Bridge to Indian Head-
434 AM EDT Sun Oct 5 2025

.REST OF THE OVERNIGHT...Light winds. Waves flat.
.TODAY...S winds around 5 kt. Waves 1 ft or less. Patchy fog. Vsby
1 to 3 NM.
.TONIGHT...S winds around 5 kt. Waves 1 ft.
.MON...S winds around 5 kt. Waves 1 ft.
.MON NIGHT...S winds 5 kt. Waves less than 1 ft.
.TUE...S winds 5 to 10 kt. Waves 1 ft.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers likely.
.WED...NW winds 5 to 10 kt...becoming N. Waves 1 ft. Showers likely
in the morning, then a chance of showers through the night.
.THU...NE winds 5 to 10 kt. Waves 1 ft.

$$

ANZ536-052300-
Tidal Potomac from Indian Head to Cobb Island-
434 AM EDT Sun Oct 5 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves flat.
.TODAY...S winds around 5 kt. Waves 1 ft or less.
.TONIGHT...S winds around 5 kt. Waves 1 ft.
.MON...S winds around 5 kt. Waves 1 ft.
.MON NIGHT...S winds 5 kt. Waves less than 1 ft.
.TUE...S winds 5 to 10 kt. Waves 1 ft.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers likely.
.WED...NW winds 5 to 10 kt...becoming N. Waves 1 ft. Showers likely
in the morning, then a chance of showers through the night.
.THU...NE winds 5 to 10 kt. Waves 1 ft.

$$

ANZ537-052300-
Tidal Potomac from Cobb Island to Smith Point-
434 AM EDT Sun Oct 5 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves flat.
.TODAY...S winds around 5 kt. Waves flat.
.TONIGHT...S winds around 5 kt. Waves 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 5 to 10 kt. Waves 1 ft.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.WED...SW winds 5 to 10 kt...becoming N 10 to 15 kt in the afternoon
and evening, then becoming NE 15 to 20 kt after midnight. Waves 1 to
2 ft...building to 3 ft after midnight. Showers likely through the
day. A chance of showers in the evening.
.THU...NE winds 15 to 20 kt. Waves 2 to 3 ft.

$$

ANZ530-052300-
Chesapeake Bay north of Pooles Island-
434 AM EDT Sun Oct 5 2025

.REST OF THE OVERNIGHT...Light winds. Waves flat.
.TODAY...SW winds around 5 kt. Waves 1 ft or less.
.TONIGHT...S winds around 5 kt. Waves 1 ft or less.
.MON...S winds around 5 kt. Waves 1 ft.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 ft.
.TUE NIGHT...S winds 10 to 15 kt. Waves 1 ft. Showers.
.WED...NW winds 10 to 15 kt...becoming N after midnight. Waves 1 ft.
Showers in the morning. A chance of showers in the afternoon.
.THU...NE winds 10 to 15 kt...becoming E 5 to 10 kt. Waves 1 ft.

$$

ANZ531-052300-
Chesapeake Bay from Pooles Island to Sandy Point-
434 AM EDT Sun Oct 5 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves flat.
.TODAY...SW winds around 5 kt. Waves 1 ft or less.
.TONIGHT...S winds 5 kt. Waves less than 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Waves 1 to 2 ft.
.TUE NIGHT...S winds 10 to 15 kt. Waves 2 ft. Showers.
.WED...NW winds 10 to 15 kt...becoming N 15 to 20 kt. Waves 1 to
2 ft. Showers in the morning. A chance of showers in the afternoon.
.THU...NE winds 10 to 15 kt...becoming E 5 to 10 kt. Waves 1 to
2 ft.

$$

ANZ538-052300-
Patapsco River including Baltimore Harbor-
434 AM EDT Sun Oct 5 2025

.REST OF THE OVERNIGHT...Light winds. Waves flat.
.TODAY...S winds around 5 kt. Waves flat.
.TONIGHT...S winds around 5 kt. Waves flat.
.MON...S winds 5 to 10 kt. Waves 1 ft or less. Patchy fog.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 5 to 10 kt. Waves 1 ft.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers.
.WED...N winds 5 to 10 kt. Waves 1 ft. Showers in the morning. A
chance of showers in the afternoon.
.THU...NE winds 5 to 10 kt. Waves 1 ft.

$$

ANZ539-052300-
Chester River to Queenstown MD-
434 AM EDT Sun Oct 5 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves flat.
.TODAY...SW winds around 5 kt. Waves flat.
.TONIGHT...S winds 5 kt. Waves flat.
.MON...S winds around 5 kt. Waves 1 ft or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 5 to 10 kt. Waves 1 ft.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers likely.
.WED...NW winds 5 to 10 kt...becoming N 10 to 15 kt. Waves 1 to
2 ft. Showers likely through the day. A chance of showers in the
evening.
.THU...NE winds 10 to 15 kt...becoming E 5 to 10 kt. Waves 1 to
2 ft.

$$

ANZ532-052300-
Chesapeake Bay from Sandy Point to North Beach-
434 AM EDT Sun Oct 5 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves less than 1 ft.
.TODAY...S winds around 5 kt. Waves 1 ft or less.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft.
.TUE NIGHT...S winds 10 to 15 kt. Waves 2 ft. Showers likely.
.WED...NW winds 10 to 15 kt...becoming N 15 to 20 kt. Waves 1 to
2 ft...building to 3 ft after midnight. Showers likely through the
day. A chance of showers in the evening.
.THU...NE winds 15 to 20 kt...becoming E 10 to 15 kt. Waves 1 to
2 ft.

$$

ANZ540-052300-
Eastern Bay-
434 AM EDT Sun Oct 5 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves flat.
.TODAY...SW winds around 5 kt. Waves flat.
.TONIGHT...S winds 5 kt. Waves flat.
.MON...S winds 5 to 10 kt. Waves 1 ft or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 5 to 10 kt. Waves 1 ft.
.TUE NIGHT...S winds 10 kt. Waves 1 ft. Showers likely.
.WED...NW winds 5 to 10 kt...becoming N 15 to 20 kt. Waves 1 to
2 ft. Showers likely through the day. A chance of showers in the
evening.
.THU...NE winds 10 to 15 kt...becoming E 5 to 10 kt. Waves 1 to
2 ft.

$$

ANZ533-052300-
Chesapeake Bay from North Beach to Drum Point-
434 AM EDT Sun Oct 5 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves flat.
.TODAY...S winds around 5 kt. Waves 1 ft or less.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft.
.TUE NIGHT...S winds 10 to 15 kt. Waves 2 ft. Showers likely.
.WED...W winds 5 to 10 kt...becoming N 15 to 20 kt. Waves 1 to
2 ft...building to 3 ft. Showers likely through the day. A chance of
showers in the evening.
.THU...NE winds 15 to 20 kt...becoming E 10 to 15 kt. Waves 2 to
3 ft.

$$

ANZ541-052300-
Choptank River to Cambridge MD and the Little Choptank River-
434 AM EDT Sun Oct 5 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves flat.
.TODAY...SW winds around 5 kt. Waves flat.
.TONIGHT...S winds 5 kt. Waves less than 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 5 to 10 kt. Waves 1 ft.
.TUE NIGHT...S winds 10 to 15 kt. Waves 1 ft. Showers likely.
.WED...W winds 5 to 10 kt...becoming N 15 to 20 kt. Waves 1 to 2 ft.
Showers likely through the day. A chance of showers in the evening.
.THU...NE winds 15 to 20 kt...becoming E 10 to 15 kt. Waves 1 to
2 ft.

$$

ANZ542-052300-
Patuxent River to Broomes Island MD-
434 AM EDT Sun Oct 5 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves less than 1 ft.
.TODAY...S winds around 5 kt. Waves 1 ft.
.TONIGHT...S winds around 5 kt. Waves 1 ft.
.MON...S winds around 5 kt. Waves 1 ft.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 5 to 10 kt. Waves 1 ft.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers likely.
.WED...W winds 5 to 10 kt...becoming N 10 to 15 kt. Waves 1 ft.
Showers likely through the day. A chance of showers in the evening.
.THU...NE winds 10 to 15 kt. Waves 1 ft.

$$

ANZ534-052300-
Chesapeake Bay from Drum Point to Smith Point-
434 AM EDT Sun Oct 5 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves less than 1 ft.
.TODAY...SW winds around 5 kt. Waves flat.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft.
.TUE NIGHT...S winds 10 to 15 kt. Waves 2 ft. A chance of showers.
.WED...W winds 10 to 15 kt...becoming N 15 to 20 kt. Waves 2 to
3 ft. Showers likely through the day. A chance of showers in the
evening.
.THU...NE winds 15 to 20 kt. Waves 2 to 3 ft.

$$

ANZ543-052300-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
434 AM EDT Sun Oct 5 2025

.REST OF THE OVERNIGHT...SW winds 5 kt. Waves flat.
.TODAY...SW winds around 5 kt. Waves flat.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft.
.MON...S winds 5 to 10 kt. Waves 1 ft or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 5 to 10 kt. Waves 1 ft.
.TUE NIGHT...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of
showers.
.WED...W winds 10 to 15 kt...becoming N 15 to 20 kt. Waves 1 to
2 ft. Showers likely through the day. A chance of showers in the
evening.
.THU...NE winds 15 to 20 kt. Waves 1 to 2 ft.

$$