468
FZUS51 KLWX 302358
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
657 PM EST Sun Nov 30 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.

ANZ500-010900-
657 PM EST Sun Nov 30 2025

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

High pressure will return Monday. The next storm system will move
across the region Tuesday morning, and this could bring a wintry mix
 to much of the region. Another disturbance will move through the
region later in the week. Small Craft Advisories will likely be
needed through the middle of the week, with gales possible late
Tuesday afternoon through Tuesday night.

$$

ANZ535-010900-
Tidal Potomac from Key Bridge to Indian Head-
657 PM EST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...SW winds 10 kt...becoming NW late this evening and
overnight. Gusts up to 20 kt. Waves 1 ft.
.MON...N winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...SE winds around 5 kt. Waves 1 ft. A chance of snow and
sleet. Vsby 1 to 3 NM.
.TUE...N winds 5 to 10 kt. Waves 1 ft. Rain.
.TUE NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.WED...W winds around 5 kt. Waves 1 ft.
.WED NIGHT...S winds around 5 kt. Waves 1 ft.
.THU...NW winds 5 to 10 kt. Waves 1 ft.
.FRI...SE winds around 5 kt. Waves 1 ft. A chance of rain and snow
in the evening. Rain and freezing rain likely after midnight.

$$

ANZ536-010900-
Tidal Potomac from Indian Head to Cobb Island-
657 PM EST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EST THIS EVENING
THROUGH MONDAY MORNING...

.TONIGHT...SW winds 10 kt...becoming NW late this evening and
overnight. Gusts up to 20 kt. Waves 1 ft.
.MON...N winds 5 to 10 kt. Gusts up to 20 kt until late afternoon.
Waves 1 ft.
.MON NIGHT...SE winds 5 kt. Waves less than 1 ft. A chance of rain,
snow and sleet. Vsby 1 to 3 NM.
.TUE...N winds 5 to 10 kt. Waves 1 ft. Rain.
.TUE NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED...NW winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...SW winds 5 kt. Waves less than 1 ft.
.THU...NW winds 10 to 15 kt...becoming N 5 to 10 kt after midnight.
Waves 1 ft.
.FRI...SE winds around 5 kt. Waves 1 ft. A chance of rain, snow and
freezing rain in the evening. Rain and freezing rain likely after
midnight.

$$

ANZ537-010900-
Tidal Potomac from Cobb Island to Smith Point-
657 PM EST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EST THIS EVENING
THROUGH MONDAY MORNING...
...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE TUESDAY
NIGHT...

.TONIGHT...W winds 15 kt...becoming NW after midnight. Gusts up to
25 kt. Waves 1 to 2 ft...building to 3 ft after midnight. A chance
of rain this evening.
.MON...N winds 10 to 15 kt with gusts to 25 kt... becoming NE 5 to
10 kt late. Waves 2 to 3 ft.
.MON NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of rain.
.TUE...NE winds 5 to 10 kt...becoming NW 10 to 15 kt with gusts to
25 kt in the afternoon. Waves 2 ft. Rain.
.TUE NIGHT...NW winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
.WED...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.THU...W winds 10 to 15 kt...becoming N 15 to 20 kt. Waves 1 to
2 ft...building to 2 to 3 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft. Rain likely through the
night.

$$

ANZ530-010900-
Chesapeake Bay north of Pooles Island-
657 PM EST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...W winds 15 kt...becoming NW late. Gusts up to 25 kt.
Waves 2 ft.
.MON...NW winds 10 to 15 kt. Gusts up to 20 kt until late afternoon.
Waves 1 ft.
.MON NIGHT...E winds 5 kt. Waves less than 1 ft. Snow likely with a
chance of sleet. Vsby 1 to 3 NM.
.TUE...E winds 5 to 10 kt...becoming N 10 to 15 kt with gusts to
20 kt in the afternoon. Waves 1 ft. Rain and sleet with snow likely.
.TUE NIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.WED...NW winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.THU...W winds 10 to 15 kt...becoming NW 15 to 20 kt. Waves 1 ft.
.FRI...SE winds 5 to 10 kt. Waves 1 ft. A chance of snow in the
evening. A chance of rain after midnight.

$$

ANZ531-010900-
Chesapeake Bay from Pooles Island to Sandy Point-
657 PM EST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...W winds 15 to 20 kt...becoming NW after midnight. Gusts
up to 25 kt. Waves 2 to 3 ft.
.MON...NW winds 15 to 20 kt with gusts to 25 kt... becoming N 5 to
10 kt in the afternoon. Waves 2 ft.
.MON NIGHT...E winds 5 to 10 kt. Waves 1 ft. Snow likely with a
chance of sleet. Vsby 1 to 3 NM.
.TUE...E winds 5 to 10 kt...becoming NW 10 to 15 kt with gusts to
20 kt in the afternoon. Waves 1 to 2 ft. Rain.
.TUE NIGHT...NW winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
.WED...NW winds 10 to 15 kt. Gusts up to 20 kt in the morning. Waves
1 to 2 ft.
.WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.THU...W winds 15 to 20 kt...becoming NW. Waves 1 to 2 ft.
.FRI...NE winds 5 to 10 kt...becoming SE. Waves 1 ft. A chance of
rain and snow in the evening. Rain likely after midnight.

$$

ANZ538-010900-
Patapsco River including Baltimore Harbor-
657 PM EST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...W winds 10 to 15 kt...becoming NW late. Gusts up to
25 kt. Waves 1 ft.
.MON...NW winds 5 to 10 kt. Gusts up to 20 kt until late afternoon.
Waves 1 ft.
.MON NIGHT...E winds 5 to 10 kt. Waves 1 ft or less. Snow likely
with a chance of sleet. Vsby 1 to 3 NM.
.TUE...E winds 5 to 10 kt...becoming NW 10 to 15 kt with gusts to
20 kt in the afternoon. Waves 1 ft. Rain.
.TUE NIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
.WED...NW winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...SW winds 5 kt. Waves flat.
.THU...W winds 10 to 15 kt...becoming NW. Waves 1 ft.
.FRI...SE winds around 5 kt. Waves 1 ft or less. A chance of rain
and snow in the evening. A chance of rain after midnight.

$$

ANZ539-010900-
Chester River to Queenstown MD-
657 PM EST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...W winds 15 to 20 kt...becoming NW after midnight. Gusts
up to 25 kt. Waves 2 to 3 ft.
.MON...NW winds 10 to 15 kt with gusts to 25 kt... becoming N 5 kt
late. Waves 2 to 3 ft.
.MON NIGHT...E winds 5 to 10 kt. Waves 1 ft. Snow likely, a chance
of rain and sleet. Vsby 1 to 3 NM.
.TUE...E winds 5 to 10 kt...becoming NW 10 to 15 kt with gusts to
20 kt in the afternoon. Waves 1 to 2 ft. Rain.
.TUE NIGHT...NW winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
.WED...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.THU...W winds 10 to 15 kt...becoming NW. Waves 1 to 2 ft...building
to 2 to 3 ft.
.FRI...SE winds 5 kt. Waves less than 1 ft. A chance of rain and
snow in the evening. Rain likely after midnight.

$$

ANZ532-010900-
Chesapeake Bay from Sandy Point to North Beach-
657 PM EST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...SW winds 15 kt...becoming NW late this evening and
overnight. Gusts up to 30 kt. Waves 2 to 3 ft.
.MON...NW winds 10 to 15 kt with gusts to 25 kt... becoming N 5 to
10 kt late. Waves 2 to 3 ft.
.MON NIGHT...SE winds 5 to 10 kt. Waves 1 ft. Snow likely, a chance
of rain and sleet. Vsby 1 to 3 NM.
.TUE...E winds 5 to 10 kt...becoming NW 10 to 15 kt with gusts to
25 kt in the afternoon. Waves 1 to 2 ft. Rain.
.TUE NIGHT...NW winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
.WED...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.THU...W winds 10 kt...becoming NW 20 to 25 kt in the afternoon and
evening, then becoming N 15 to 20 kt after midnight. Waves 1 to
2 ft...building to 2 to 3 ft.
.FRI...NE winds 5 to 10 kt...becoming S. Waves 1 ft. A chance of
rain and snow in the evening. Rain likely after midnight.

$$

ANZ540-010900-
Eastern Bay-
657 PM EST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...W winds 15 to 20 kt...becoming NW after midnight. Gusts
up to 25 kt. Waves 2 ft.
.MON...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft.
.MON NIGHT...E winds 5 to 10 kt. Waves 1 ft or less. Snow likely, a
chance of rain and sleet. Vsby 1 to 3 NM.
.TUE...E winds 5 to 10 kt...becoming NW 10 to 15 kt with gusts to
25 kt in the afternoon. Waves 1 to 2 ft. Rain.
.TUE NIGHT...NW winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
.WED...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.THU...W winds 10 to 15 kt...becoming NW 15 to 20 kt. Waves 1 to
2 ft.
.FRI...NE winds 5 to 10 kt...becoming SE. Waves 1 ft or less. A
chance of rain and snow in the evening. Rain likely after midnight.

$$

ANZ533-010900-
Chesapeake Bay from North Beach to Drum Point-
657 PM EST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EST THIS EVENING
THROUGH MONDAY MORNING...
...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE TUESDAY
NIGHT...

.TONIGHT...SW winds 15 kt with gusts to 20 kt... becoming NW with
gusts to 30 kt late this evening and overnight. Waves 2 to 3 ft. A
slight chance of rain this evening.
.MON...N winds 15 to 20 kt with gusts to 25 kt... diminishing to
5 to 10 kt late. Waves 2 to 3 ft.
.MON NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of rain. Vsby
1 to 3 NM.
.TUE...E winds 10 to 15 kt...becoming NW 15 to 20 kt with gusts to
25 kt in the afternoon. Waves 1 to 2 ft. Rain.
.TUE NIGHT...NW winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft.
.WED...NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft.
.WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.THU...W winds 10 kt...becoming NW 20 to 25 kt in the afternoon and
evening, then becoming N 15 to 20 kt after midnight. Waves 1 ft...
building to 3 ft.
.FRI...NE winds 5 to 10 kt...becoming SE. Waves 1 ft. Rain and snow
likely in the evening. Rain likely after midnight.

$$

ANZ541-010900-
Choptank River to Cambridge MD and the Little Choptank River-
657 PM EST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EST THIS EVENING
THROUGH MONDAY MORNING...
...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE TUESDAY
NIGHT...

.TONIGHT...SW winds 15 kt...becoming NW late this evening and
overnight. Gusts up to 30 kt. Waves 2 to 3 ft. A slight chance of
rain this evening.
.MON...N winds 15 to 20 kt with gusts to 25 kt... diminishing to
5 to 10 kt late. Waves 2 ft.
.MON NIGHT...E winds 5 to 10 kt. Waves 1 ft. Snow likely with a
chance of rain. Vsby 1 to 3 NM.
.TUE...E winds 5 to 10 kt...becoming NW 15 to 20 kt with gusts to
25 kt in the afternoon. Waves 1 to 2 ft. Rain.
.TUE NIGHT...NW winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
.WED...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.THU...W winds 5 to 10 kt...becoming NW 20 to 25 kt in the afternoon
and evening, then becoming N 15 to 20 kt after midnight. Waves 1 to
2 ft...building to 2 to 3 ft.
.FRI...NE winds 5 to 10 kt...becoming SE. Waves 1 ft. Rain and snow
likely in the evening. Rain likely after midnight.

$$

ANZ542-010900-
Patuxent River to Broomes Island MD-
657 PM EST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EST THIS EVENING
THROUGH MONDAY MORNING...
...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE TUESDAY
NIGHT...

.TONIGHT...W winds 10 to 15 kt...becoming NW after midnight. Gusts
up to 25 kt. Waves 1 ft. A chance of rain this evening.
.MON...N winds 10 to 15 kt with gusts to 25 kt... diminishing to
5 to 10 kt late. Waves 1 ft.
.MON NIGHT...E winds 5 kt. Waves less than 1 ft. A chance of rain.
.TUE...NE winds 5 to 10 kt...becoming NW 10 to 15 kt in the
afternoon. Gusts up to 20 kt. Waves 1 ft. Rain.
.TUE NIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
.WED...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves
1 ft.
.WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.THU...W winds 10 to 15 kt...becoming NW. Waves 1 ft.
.FRI...E winds 5 kt. Waves less than 1 ft. Rain and snow likely in
the evening. Rain likely after midnight.

$$

ANZ534-010900-
Chesapeake Bay from Drum Point to Smith Point-
657 PM EST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EST THIS EVENING
THROUGH MONDAY MORNING...
...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE TUESDAY
NIGHT...

.TONIGHT...W winds 15 to 20 kt with gusts to 25 kt... becoming NW
25 kt with gusts to 30 kt after midnight. Waves 2 to 3 ft...building
to 4 ft after midnight. A chance of rain this evening with vsby 1 to
3 NM.
.MON...N winds 15 to 20 kt with gusts to 25 kt... diminishing to
5 to 10 kt late. Waves 4 ft...subsiding to 2 ft in the afternoon.
.MON NIGHT...E winds 5 to 10 kt. Waves 1 to 2 ft. A chance of rain.
.TUE...E winds 10 to 15 kt...becoming NW 15 to 20 kt with gusts to
25 kt in the afternoon. Waves 2 to 3 ft. Rain.
.TUE NIGHT...NW winds 20 to 25 kt with gusts to 30 kt. Waves 5 ft.
.WED...NW winds 15 to 20 kt. Gusts up to 25 kt in the morning. Waves
4 ft...subsiding to 2 ft in the afternoon.
.WED NIGHT...SW winds 10 to 15 kt. Waves 1 to 2 ft.
.THU...W winds 10 to 15 kt...becoming NW 20 to 25 kt in the
afternoon and evening, then becoming N after midnight. Waves 2 to
3 ft...building to 4 ft.
.FRI...NE winds 10 to 15 kt...becoming E 5 to 10 kt. Waves 1 to
2 ft. Rain likely through the night.

$$

ANZ543-010900-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
657 PM EST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EST THIS EVENING
THROUGH MONDAY MORNING...
...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE TUESDAY
NIGHT...

.TONIGHT...W winds 15 kt...becoming NW after midnight. Gusts up to
25 kt. Waves 1 to 2 ft. A chance of rain this evening with vsby 1 to
3 NM.
.MON...N winds 15 to 20 kt with gusts to 25 kt... diminishing to
5 to 10 kt late. Waves 1 to 2 ft.
.MON NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of snow. Vsby
1 to 3 NM.
.TUE...E winds 10 to 15 kt...becoming NW 15 to 20 kt with gusts to
25 kt in the afternoon. Waves 1 to 2 ft. Rain.
.TUE NIGHT...NW winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
.WED...NW winds 15 to 20 kt. Gusts up to 25 kt in the morning. Waves
1 to 2 ft.
.WED NIGHT...SW winds 10 to 15 kt. Waves 1 ft.
.THU...W winds 10 to 15 kt...becoming NW 20 to 25 kt in the
afternoon and evening, then becoming N 15 to 20 kt after midnight.
Waves 1 to 2 ft.
.FRI...NE winds 10 to 15 kt...becoming E 5 to 10 kt. Waves 1 ft. A
chance of rain in the evening. Rain likely after midnight.

$$