542
FZUS51 KLWX 060558
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1258 AM EST Sat Dec 6 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.

ANZ500-062100-
1258 AM EST Sat Dec 6 2025

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

High pressure builds over New England, while an area of low pressure
 will likely pass by to the south. This system eventually evolves
into a coastal low across the Atlantic Ocean later this evening
before tracking out to sea.  High pressure briefly builds over the
area this weekend while a  stronger cold front crosses the waters by
late Sunday. A strong area  of Canadian high pressure builds over
the region on Monday into  Tuesday. Small Craft Advisories will
likely be needed on Monday, and  possibly again on Tuesday.

$$

ANZ535-062100-
Tidal Potomac from Key Bridge to Indian Head-
1258 AM EST Sat Dec 6 2025

.OVERNIGHT...Light winds. Waves flat. Freezing drizzle with possible
snow and freezing rain. Patchy fog. Vsby 1 to 3 NM.
.SAT...W winds around 5 kt. Waves flat.
.SAT NIGHT...NW winds around 5 kt. Waves 1 ft or less.
.SUN...E winds around 5 kt. Waves 1 ft or less.
.SUN NIGHT...SW winds around 5 kt...becoming NW after midnight.
Waves 1 ft.
.MON...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.MON NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.TUE...SW winds 5 to 10 kt. Waves 1 ft.
.WED...SW winds 10 to 15 kt...becoming W 5 to 10 kt after midnight.
Waves 1 ft. A chance of rain after midnight.

$$

ANZ536-062100-
Tidal Potomac from Indian Head to Cobb Island-
1258 AM EST Sat Dec 6 2025

.OVERNIGHT...NW winds 5 kt. Waves flat. A chance of snow, a slight
chance of rain, freezing rain and freezing drizzle. Patchy fog. Vsby
1 to 3 NM.
.SAT...W winds around 5 kt. Waves flat. Patchy fog. Vsby 1 to 3 NM.
.SAT NIGHT...NW winds around 5 kt. Waves 1 ft or less.
.SUN...E winds around 5 kt. Waves 1 ft or less.
.SUN NIGHT...SW winds around 5 kt...becoming N 10 to 15 kt after
midnight. Waves 1 ft.
.MON...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.MON NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.TUE...SW winds 10 to 15 kt. Waves 1 ft.
.WED...SW winds 15 to 20 kt...becoming W 10 to 15 kt after midnight.
Waves 1 to 2 ft.

$$

ANZ537-062100-
Tidal Potomac from Cobb Island to Smith Point-
1258 AM EST Sat Dec 6 2025

.OVERNIGHT...NW winds 5 kt. Waves less than 1 ft. A slight chance of
rain and snow. Patchy fog. Vsby 1 to 3 NM.
.SAT...NW winds around 5 kt. Waves 1 ft or less. Patchy fog. Vsby
1 to 3 NM.
.SAT NIGHT...NW winds around 5 kt. Waves 1 ft or less.
.SUN...E winds around 5 kt. Waves 1 ft or less.
.SUN NIGHT...SW winds around 5 kt...becoming N 15 to 20 kt after
midnight. Waves flat...building to 2 ft after midnight.
.MON...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.MON NIGHT...N winds 15 to 20 kt. Waves 2 to 3 ft.
.TUE...NW winds 5 kt...becoming SW 10 to 15 kt. Waves 1 to 2 ft.
.WED...SW winds 15 to 20 kt...becoming W after midnight. Waves 2 ft.


$$

ANZ530-062100-
Chesapeake Bay north of Pooles Island-
1258 AM EST Sat Dec 6 2025

.OVERNIGHT...N winds 5 kt. Waves flat. Freezing drizzle, a slight
chance of freezing rain and snow. Vsby 1 to 3 NM.
.SAT...W winds around 5 kt. Waves 1 ft.
.SAT NIGHT...NW winds around 5 kt. Waves 1 ft.
.SUN...W winds around 5 kt. Waves 1 ft.
.SUN NIGHT...W winds around 5 kt...becoming NW 10 to 15 kt with
gusts to 20 kt after midnight. Waves 1 ft.
.MON...N winds 15 to 20 kt. Waves 1 ft.
.MON NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.TUE...SE winds 5 to 10 kt...becoming SW 10 to 15 kt. Waves 1 ft.
.WED...SW winds 15 to 20 kt...becoming W after midnight. Waves 1 to
2 ft. A chance of rain.

$$

ANZ531-062100-
Chesapeake Bay from Pooles Island to Sandy Point-
1258 AM EST Sat Dec 6 2025

.OVERNIGHT...N winds 5 kt. Waves flat. Freezing drizzle with a
slight chance of rain. Patchy fog. Vsby 1 to 3 NM.
.SAT...W winds around 5 kt. Waves 1 ft or less.
.SAT NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.SUN...W winds 5 kt. Waves less than 1 ft.
.SUN NIGHT...SW winds 5 to 10 kt...becoming NW 15 to 20 kt after
midnight. Waves 1 to 2 ft.
.MON...N winds 15 to 20 kt. Waves 2 to 3 ft.
.MON NIGHT...N winds 10 to 15 kt. Waves 1 to 2 ft.
.TUE...E winds 5 kt...becoming SW 10 to 15 kt. Waves flat...building
to 2 ft.
.WED...SW winds 15 to 20 kt...becoming W after midnight. Waves 2 to
3 ft. A chance of rain through the night.

$$

ANZ538-062100-
Patapsco River including Baltimore Harbor-
1258 AM EST Sat Dec 6 2025

.OVERNIGHT...Light winds. Waves flat. Freezing drizzle with a slight
chance of snow. Patchy fog. Vsby 1 to 3 NM.
.SAT...W winds around 5 kt. Waves flat.
.SAT NIGHT...W winds around 5 kt. Waves flat.
.SUN...W winds around 5 kt. Waves flat.
.SUN NIGHT...W winds 5 kt...becoming NW 10 to 15 kt after midnight.
Waves 1 ft or less.
.MON...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.MON NIGHT...N winds 5 to 10 kt. Waves 1 ft or less.
.TUE...SE winds 5 to 10 kt...becoming SW. Waves 1 ft or less.
.WED...SW winds 10 to 15 kt...becoming W after midnight. Waves 1 ft.
A chance of rain through the night.

$$

ANZ539-062100-
Chester River to Queenstown MD-
1258 AM EST Sat Dec 6 2025

.OVERNIGHT...N winds 5 kt. Waves flat. Freezing drizzle with a
slight chance of rain. Patchy fog. Vsby 1 to 3 NM.
.SAT...W winds 5 kt. Waves flat.
.SAT NIGHT...NW winds 5 kt. Waves less than 1 ft.
.SUN...E winds around 5 kt. Waves 1 ft or less.
.SUN NIGHT...SW winds around 5 kt...becoming NW 10 to 15 kt with
gusts to 20 kt after midnight. Waves 1 to 2 ft.
.MON...N winds 15 to 20 kt. Waves 2 ft.
.MON NIGHT...N winds 5 to 10 kt. Waves 1 to 2 ft.
.TUE...SE winds 5 to 10 kt...becoming SW 10 to 15 kt. Waves 1 ft or
less...building to 2 ft.
.WED...SW winds 15 to 20 kt...becoming W after midnight. Waves 2 ft.
A chance of rain through the night.

$$

ANZ532-062100-
Chesapeake Bay from Sandy Point to North Beach-
1258 AM EST Sat Dec 6 2025

.OVERNIGHT...NW winds 5 kt. Waves flat. A chance of snow with
possible rain and freezing drizzle. Patchy fog. Vsby 1 to 3 NM.
.SAT...W winds 5 kt. Waves flat.
.SAT NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.SUN...E winds 5 kt. Waves less than 1 ft.
.SUN NIGHT...SW winds 5 to 10 kt...becoming NW 15 to 20 kt after
midnight. Waves 1 to 2 ft.
.MON...N winds 20 to 25 kt. Waves 3 ft.
.MON NIGHT...N winds 15 to 20 kt...becoming NE 5 to 10 kt after
midnight. Waves 1 to 2 ft.
.TUE...SE winds 10 to 15 kt...becoming SW 15 to 20 kt. Waves 1 to
2 ft...building to 3 ft.
.WED...SW winds 20 to 25 kt...becoming W 15 to 20 kt after midnight.
Waves 3 ft. A chance of rain through the night.

$$

ANZ540-062100-
Eastern Bay-
1258 AM EST Sat Dec 6 2025

.OVERNIGHT...N winds 5 kt. Waves flat. Freezing drizzle with a
slight chance of rain. Patchy fog. Vsby 1 to 3 NM.
.SAT...NW winds around 5 kt. Waves flat.
.SAT NIGHT...NW winds 5 to 10 kt. Waves 1 ft or less.
.SUN...E winds 5 kt. Waves flat.
.SUN NIGHT...SW winds 5 kt...becoming NW 15 to 20 kt after midnight.
Waves 1 ft.
.MON...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.MON NIGHT...N winds 10 to 15 kt. Waves 1 ft.
.TUE...SE winds 5 kt...becoming SW 10 to 15 kt. Waves 1 ft or less...
building to 2 ft.
.WED...SW winds 15 to 20 kt...becoming W after midnight. Waves 2 to
3 ft. A chance of rain through the night.

$$

ANZ533-062100-
Chesapeake Bay from North Beach to Drum Point-
1258 AM EST Sat Dec 6 2025

.OVERNIGHT...NW winds 5 kt. Waves less than 1 ft. A slight chance of
rain and freezing drizzle. Patchy fog. Vsby 1 to 3 NM.
.SAT...NW winds 5 kt. Waves flat.
.SAT NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.SUN...E winds 5 kt. Waves less than 1 ft.
.SUN NIGHT...SW winds 5 to 10 kt...becoming NW 15 to 20 kt with
gusts to 25 kt after midnight. Waves 1 ft... building to 3 ft after
midnight.
.MON...N winds 20 to 25 kt. Waves 4 ft.
.MON NIGHT...N winds 15 to 20 kt. Gusts up to 25 kt in the evening.
Waves 2 to 3 ft.
.TUE...N winds 5 to 10 kt...becoming SW 15 to 20 kt. Waves 1 to
2 ft...building to 3 ft.
.WED...SW winds 25 to 30 kt...becoming W 15 to 20 kt after midnight.
Waves 3 ft. A chance of rain through the night.

$$

ANZ541-062100-
Choptank River to Cambridge MD and the Little Choptank River-
1258 AM EST Sat Dec 6 2025

.OVERNIGHT...N winds 5 kt. Waves less than 1 ft. A slight chance of
rain and freezing drizzle. Patchy fog. Vsby 1 to 3 NM.
.SAT...NW winds 5 kt. Waves flat.
.SAT NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.SUN...E winds 5 kt. Waves less than 1 ft.
.SUN NIGHT...SW winds 5 kt...becoming N 15 to 20 kt after midnight.
Waves 1 to 2 ft.
.MON...N winds 20 to 25 kt. Waves 2 ft.
.MON NIGHT...NE winds 15 to 20 kt. Waves 1 to 2 ft.
.TUE...SE winds 5 kt...becoming SW 15 to 20 kt. Waves 1 to 2 ft.
.WED...SW winds 20 to 25 kt...becoming W 15 to 20 kt after midnight.
Waves 2 to 3 ft. A chance of rain through the night.

$$

ANZ542-062100-
Patuxent River to Broomes Island MD-
1258 AM EST Sat Dec 6 2025

.OVERNIGHT...NW winds 5 kt. Waves less than 1 ft. A slight chance of
rain and snow. Patchy fog. Vsby 1 to 3 NM.
.SAT...NW winds around 5 kt. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.
.SAT NIGHT...NW winds around 5 kt. Waves 1 ft.
.SUN...E winds 5 kt. Waves less than 1 ft.
.SUN NIGHT...SW winds around 5 kt...becoming N 10 to 15 kt with
gusts to 20 kt after midnight. Waves 1 ft.
.MON...N winds 15 kt with gusts to 20 kt. Waves 1 ft.
.MON NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.TUE...NW winds around 5 kt...becoming SW 10 to 15 kt. Waves 1 ft.
.WED...SW winds 10 to 15 kt...becoming W after midnight. Waves 1 ft.
A chance of rain after midnight.

$$

ANZ534-062100-
Chesapeake Bay from Drum Point to Smith Point-
1258 AM EST Sat Dec 6 2025

.OVERNIGHT...N winds 10 kt. Waves 1 ft. A slight chance of rain and
snow. Patchy fog. Vsby 1 to 3 NM.
.SAT...NW winds 5 to 10 kt. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.
.SAT NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds 5 to 10 kt...becoming S in the afternoon. Waves
1 ft.
.SUN NIGHT...SW winds 5 to 10 kt...becoming N 15 to 20 kt after
midnight. Waves 1 ft...building to 3 ft after midnight.
.MON...N winds 20 to 25 kt. Waves 4 ft.
.MON NIGHT...N winds 20 to 25 kt...diminishing to 10 to 15 kt after
midnight. Waves 3 ft.
.TUE...N winds 5 to 10 kt...becoming SW 15 to 20 kt. Waves 1 to
2 ft...building to 3 ft.
.WED...SW winds 20 to 25 kt...becoming W after midnight. Waves 3 ft.
A chance of rain after midnight.

$$

ANZ543-062100-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1258 AM EST Sat Dec 6 2025

.OVERNIGHT...N winds 10 kt. Waves 1 ft. A slight chance of rain and
snow. Patchy fog. Vsby 1 to 3 NM.
.SAT...NW winds 5 to 10 kt. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.
.SAT NIGHT...NW winds 5 to 10 kt. Waves 1 ft or less.
.SUN...NE winds 5 to 10 kt...becoming S in the afternoon. Waves 1 ft
or less.
.SUN NIGHT...SW winds 5 kt...becoming N 15 to 20 kt after midnight.
Waves flat...building to 2 ft after midnight.
.MON...N winds 20 to 25 kt. Waves 2 ft.
.MON NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.TUE...N winds 5 to 10 kt...becoming SW 15 to 20 kt. Waves 1 to
2 ft.
.WED...SW winds 20 to 25 kt...becoming W after midnight. Waves 2 to
3 ft.

$$