421
FZUS51 KLWX 301931
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
230 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-
230 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-
230 PM EST Sun Nov 30 2025

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

.THIS AFTERNOON...SW winds 10 kt. Gusts up to 20 kt late. Waves
1 ft. A chance of rain.
.TONIGHT...W winds 5 to 10 kt with gusts 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.
.TUE...N winds 5 to 10 kt. Waves 1 ft. Rain.
.TUE NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.WED...SW winds around 5 kt. Waves 1 ft.
.THU...NW winds 5 to 10 kt. Waves 1 ft.

$$

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

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

.THIS AFTERNOON...SW winds 10 kt. Gusts up to 20 kt late. Waves
1 ft. A chance of rain.
.TONIGHT...W winds 10 to 15 kt...becoming NW after midnight. 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.
.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...becoming SW. Waves 1 ft.
.THU...NW winds 10 to 15 kt...becoming N 5 to 10 kt after midnight.
Waves 1 ft.

$$

ANZ537-010900-
Tidal Potomac from Cobb Island to Smith Point-
230 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...

.THIS AFTERNOON...SW winds 5 to 10 kt. Waves 1 ft. Rain likely. Vsby
1 to 3 NM.
.TONIGHT...W winds 10 to 15 kt...becoming NW 15 to 20 kt after
midnight. Gusts up to 25 kt. Waves 2 to 3 ft. A chance of rain.
.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 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...becoming SW 5 to 10 kt. Waves 1 to
2 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.

$$

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

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

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts to 20 kt. Waves
2 ft. A chance of rain.
.TONIGHT...SW winds 10 to 15 kt...becoming NW in the late evening
and overnight. 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.
.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 1 to
2 ft.
.WED...NW winds 5 to 10 kt...becoming SW. Waves 1 ft.
.THU...W winds 10 to 15 kt...becoming NW 15 to 20 kt. Waves 1 ft.

$$

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

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

.THIS AFTERNOON...SW winds 10 to 15 kt. Gusts up to 25 kt late.
Waves 2 ft. A chance of rain.
.TONIGHT...SW winds 15 kt...becoming NW in the late evening and
overnight. 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.
.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...becoming SW 5 to 10 kt. Waves 1 to
2 ft.
.THU...W winds 15 to 20 kt...becoming NW. Waves 1 to 2 ft.

$$

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

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

.THIS AFTERNOON...SW winds 10 kt with gusts to 20 kt. Waves 1 ft. A
chance of rain.
.TONIGHT...W winds 10 to 15 kt...becoming NW after midnight. 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.
.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...becoming SW. Waves 1 ft or less.
.THU...W winds 10 to 15 kt...becoming NW. Waves 1 ft.

$$

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

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

.THIS AFTERNOON...SW winds 10 to 15 kt. Gusts up to 25 kt late.
Waves 2 ft. Rain likely.
.TONIGHT...SW winds 10 to 15 kt...becoming NW 15 to 20 kt in the
late evening and overnight. Gusts up to 25 kt. Waves 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 or less. Snow likely, a
chance of rain and sleet.
.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...becoming SW 5 to 10 kt. Waves 1 to
2 ft.
.THU...W winds 10 to 15 kt...becoming NW. Waves 1 to 2 ft...building
to 2 to 3 ft.

$$

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

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

.THIS AFTERNOON...SW winds 10 to 15 kt. Gusts up to 25 kt late.
Waves 2 ft. Rain likely.
.TONIGHT...SW winds 15 kt...becoming NW in the late 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 ft.
.MON NIGHT...E winds 5 to 10 kt. Waves 1 ft. Snow likely, a chance
of rain and sleet.
.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...becoming SW 5 to 10 kt. Waves 1 to
2 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.

$$

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

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

.THIS AFTERNOON...SW winds 10 to 15 kt. Gusts up to 20 kt late.
Waves 2 ft. Rain likely.
.TONIGHT...SW winds 10 to 15 kt...becoming NW 15 to 20 kt in the
late evening and overnight. 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. Snow likely, a chance
of rain and sleet.
.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 to
3 ft.
.WED...NW winds 10 to 15 kt...becoming SW 5 to 10 kt. Waves 1 to
2 ft.
.THU...W winds 10 to 15 kt...becoming NW 15 to 20 kt. Waves 1 to
2 ft.

$$

ANZ533-010900-
Chesapeake Bay from North Beach to Drum Point-
230 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...

.THIS AFTERNOON...SW winds 10 to 15 kt. Gusts up to 20 kt late.
Waves 2 ft. Rain likely. Vsby 1 to 3 NM.
.TONIGHT...SW winds 15 kt with gusts to 20 kt... becoming NW with
gusts to 30 kt in the late evening and overnight. Waves 2 to 3 ft.
.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.
.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...becoming SW 5 to 10 kt. Waves 3 ft...
subsiding to 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.

$$

ANZ541-010900-
Choptank River to Cambridge MD and the Little Choptank River-
230 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...

.THIS AFTERNOON...SW winds 10 to 15 kt. Gusts up to 20 kt late.
Waves 2 ft. Rain.
.TONIGHT...SW winds 10 to 15 kt...becoming NW 15 to 20 kt in the
late evening and overnight. Gusts up to 30 kt. Waves 2 to 3 ft.
.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.
.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...becoming SW 5 to 10 kt. Waves 1 to
2 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.

$$

ANZ542-010900-
Patuxent River to Broomes Island MD-
230 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...

.THIS AFTERNOON...SW winds 5 to 10 kt. Waves 1 ft. Rain likely. Vsby
1 to 3 NM.
.TONIGHT...W winds 10 to 15 kt...becoming NW after midnight. Gusts
up to 25 kt. Waves 1 ft. A chance of rain.
.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...becoming SW. Waves 1 ft.
.THU...W winds 10 to 15 kt...becoming NW. Waves 1 ft.

$$

ANZ534-010900-
Chesapeake Bay from Drum Point to Smith Point-
230 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...

.THIS AFTERNOON...SW winds 5 kt...increasing to 15 kt with gusts to
20 kt late. Waves 2 ft. Rain likely. Vsby 1 to 3 NM.
.TONIGHT...W winds 15 to 20 kt with gusts to 25 kt... becoming NW
20 to 25 kt with gusts to 30 kt after midnight. Waves 2 ft...
building to 4 ft after midnight. A chance of rain. 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...becoming SW 10 to 15 kt. Waves 2 to
3 ft...subsiding to 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.

$$

ANZ543-010900-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
230 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...

.THIS AFTERNOON...SW winds 5 to 10 kt. Waves 1 ft. Rain likely. Vsby
1 to 3 NM.
.TONIGHT...W winds 15 to 20 kt...becoming NW after midnight. Gusts
up to 25 kt. Waves 2 ft. A chance of rain. 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.
.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...becoming SW 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 15 to 20 kt after midnight.
Waves 1 to 2 ft.

$$