247
FZUS51 KLWX 072058
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
358 PM EST Sun Dec 7 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.

ANZ500-080900-
358 PM EST Sun Dec 7 2025

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

Weak high pressure will remain nearby this afternoon before a potent
 cold front crosses the waters late tonight. A strong area of
Canadian high pressure builds over the region on late Monday into
Tuesday. Another clipper-like system moves through the area by mid-
week before a secondary cold front crosses the waters on Thursday.
Small Craft Advisories will likely be needed Tuesday through
Wednesday night.

$$

ANZ535-080900-
Tidal Potomac from Key Bridge to Indian Head-
358 PM EST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM EST MONDAY THROUGH
MONDAY AFTERNOON...

.REST OF THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft.
.TONIGHT...W winds around 5 kt...becoming N with gusts to 20 kt
late. Waves 1 ft.
.MON...NE winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.MON NIGHT...N winds around 5 kt. Waves 1 ft.
.TUE...SW winds 5 to 10 kt. Waves 1 ft.
.TUE NIGHT...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.
.THU...NW winds 5 to 10 kt. Waves 1 ft. A chance of rain in the
evening. A chance of rain and snow after midnight.

$$

ANZ536-080900-
Tidal Potomac from Indian Head to Cobb Island-
358 PM EST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM EST MONDAY THROUGH
MONDAY AFTERNOON...

.REST OF THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft.
.TONIGHT...W winds around 5 kt...becoming N 10 to 15 kt with gusts
to 20 kt after midnight. Waves 1 ft.
.MON...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. A
chance of snow. Vsby 1 to 3 NM.
.MON NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.TUE...SW winds 5 to 10 kt. Waves 1 ft.
.TUE NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED...SW winds 15 to 20 kt...becoming W 10 to 15 kt after midnight.
Waves 1 to 2 ft.
.THU...NW winds 5 to 10 kt. Waves 1 ft. A chance of rain in the
evening. A chance of rain and snow after midnight.

$$

ANZ537-080900-
Tidal Potomac from Cobb Island to Smith Point-
358 PM EST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM EST MONDAY THROUGH LATE
MONDAY NIGHT...

.REST OF THIS AFTERNOON...S winds 5 kt. Waves flat.
.TONIGHT...W winds around 5 kt...becoming N 10 to 15 kt with gusts
to 25 kt after midnight. Waves flat...building to 2 ft after
midnight.
.MON...NE winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft. A
chance of snow. Vsby 1 to 3 NM.
.MON NIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.TUE...N winds around 5 kt...becoming SW in the afternoon. Waves
1 ft.
.TUE NIGHT...SW winds 15 to 20 kt. Waves 2 ft.
.WED...SW winds 15 to 20 kt...becoming W after midnight. Waves 2 to
3 ft.
.THU...NW winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain
through the night.

$$

ANZ530-080900-
Chesapeake Bay north of Pooles Island-
358 PM EST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH
MONDAY AFTERNOON...

.REST OF THIS AFTERNOON...SW winds 5 kt. Waves less than 1 ft.
.TONIGHT...W winds 5 to 10 kt...becoming N 10 to 15 kt with gusts to
25 kt late. Waves 1 ft.
.MON...NE winds 10 to 15 kt. Gusts up to 25 kt until late afternoon.
Waves 2 ft.
.MON NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.TUE...E winds around 5 kt...becoming S in the afternoon. Waves
1 ft.
.TUE NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.WED...SW winds 15 to 20 kt...becoming W after midnight. Waves 1 to
2 ft. A chance of rain in the afternoon.
.THU...W winds 10 to 15 kt. Waves 1 ft. A chance of rain and snow
through the night.

$$

ANZ531-080900-
Chesapeake Bay from Pooles Island to Sandy Point-
358 PM EST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH
MONDAY AFTERNOON...

.REST OF THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft.
.TONIGHT...W winds 5 to 10 kt...becoming N 15 to 20 kt with gusts to
25 kt late. Waves flat...building to 2 ft after midnight.
.MON...NE winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.MON NIGHT...NE winds 10 to 15 kt. Waves 1 to 2 ft.
.TUE...E winds around 5 kt...becoming S 10 to 15 kt in the
afternoon. Waves flat...building to 2 ft in the afternoon.
.TUE NIGHT...SW winds 15 to 20 kt. Waves 2 ft.
.WED...SW winds 15 to 20 kt...becoming W after midnight. Waves 2 to
3 ft. A chance of rain in the afternoon.
.THU...W winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain and
snow through the night.

$$

ANZ538-080900-
Patapsco River including Baltimore Harbor-
358 PM EST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH
MONDAY AFTERNOON...

.REST OF THIS AFTERNOON...S winds 5 kt. Waves flat.
.TONIGHT...W winds 5 to 10 kt...becoming N 10 to 15 kt with gusts to
20 kt late. Waves 1 ft or less.
.MON...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.MON NIGHT...NE winds 5 to 10 kt. Waves 1 ft or less.
.TUE...SE winds 5 to 10 kt. Waves 1 ft or less.
.TUE NIGHT...SW winds 10 kt. Waves 1 ft.
.WED...SW winds 10 to 15 kt...becoming W after midnight. Waves 1 ft.
.THU...W winds 5 to 10 kt. Waves 1 ft. A chance of rain and snow
through the night.

$$

ANZ539-080900-
Chester River to Queenstown MD-
358 PM EST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH
MONDAY AFTERNOON...

.REST OF THIS AFTERNOON...S winds 5 kt. Waves flat.
.TONIGHT...W winds 5 to 10 kt...becoming N 15 to 20 kt with gusts to
25 kt late. Waves flat...building to 2 ft after midnight.
.MON...NE winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.MON NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.TUE...E winds 5 kt...becoming S in the afternoon. Waves 1 ft or
less.
.TUE NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.WED...SW winds 15 to 20 kt...becoming W after midnight. Waves 2 to
3 ft.
.THU...NW winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain in
the evening. A chance of rain and snow after midnight.

$$

ANZ532-080900-
Chesapeake Bay from Sandy Point to North Beach-
358 PM EST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH LATE
MONDAY NIGHT...

.REST OF THIS AFTERNOON...S winds 5 kt. Waves flat.
.TONIGHT...W winds 5 to 10 kt...becoming N 15 to 20 kt with gusts to
25 kt late. Waves flat...building to 2 ft after midnight.
.MON...NE winds 15 to 20 kt. Gusts up to 30 kt... diminishing to
20 kt in the afternoon. Waves 3 ft.
.MON NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft.
.TUE...E winds 5 kt...becoming S 10 to 15 kt in the afternoon. Waves
1 to 2 ft.
.TUE NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.WED...SW winds 20 to 25 kt...becoming W 15 to 20 kt after midnight.
Waves 3 ft.
.THU...NW winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain
through the night.

$$

ANZ540-080900-
Eastern Bay-
358 PM EST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH LATE
MONDAY NIGHT...

.REST OF THIS AFTERNOON...S winds 5 kt. Waves flat.
.TONIGHT...W winds 5 to 10 kt...becoming N 15 to 20 kt with gusts to
25 kt late. Waves 1 ft or less.
.MON...NE winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.MON NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.TUE...E winds around 5 kt...becoming S 10 to 15 kt in the
afternoon. Waves 1 ft or less.
.TUE NIGHT...SW winds 15 to 20 kt. Waves 2 ft.
.WED...SW winds 15 to 20 kt...becoming W after midnight. Waves 2 to
3 ft.
.THU...NW winds 10 to 15 kt. Waves 1 ft. A chance of rain through
the night.

$$

ANZ533-080900-
Chesapeake Bay from North Beach to Drum Point-
358 PM EST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH LATE
MONDAY NIGHT...

.REST OF THIS AFTERNOON...S winds 5 kt. Waves flat.
.TONIGHT...W winds 5 kt...becoming NW after midnight, then becoming
N 15 to 20 kt with gusts to 25 kt late. Waves flat...building to
2 ft after midnight.
.MON...NE winds 20 to 25 kt with gusts to 30 kt... diminishing to
15 kt with gusts to 20 kt in the afternoon. Waves 3 ft. A chance of
snow. Vsby 1 to 3 NM.
.MON NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 to
3 ft.
.TUE...NE winds 5 kt...becoming S 10 to 15 kt with gusts to 20 kt in
the afternoon. Waves 1 to 2 ft.
.TUE NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.WED...SW winds 25 to 30 kt...becoming W 15 to 20 kt after midnight.
Waves 3 ft.
.THU...NW winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain
through the night.

$$

ANZ541-080900-
Choptank River to Cambridge MD and the Little Choptank River-
358 PM EST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH LATE
MONDAY NIGHT...

.REST OF THIS AFTERNOON...S winds 5 kt. Waves flat.
.TONIGHT...W winds around 5 kt...becoming NW after midnight, then
becoming N 15 to 20 kt with gusts to 25 kt late. Waves flat...
building to 2 ft after midnight.
.MON...NE winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.MON NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft.
.TUE...NE winds 5 kt...becoming S 10 to 15 kt in the afternoon.
Waves 1 ft.
.TUE NIGHT...SW winds 15 to 20 kt. Waves 2 ft.
.WED...SW winds 20 to 25 kt...becoming W 15 to 20 kt after midnight.
Waves 3 ft.
.THU...NW winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain
through the night.

$$

ANZ542-080900-
Patuxent River to Broomes Island MD-
358 PM EST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH LATE
MONDAY NIGHT...

.REST OF THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft.
.TONIGHT...W winds around 5 kt...becoming N 10 to 15 kt with gusts
to 20 kt after midnight. Waves 1 ft.
.MON...NE winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. A
chance of snow. Vsby 1 to 3 NM.
.MON NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.TUE...N winds 5 kt...becoming SW in the afternoon. Waves 1 ft.
.TUE NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED...SW winds 15 to 20 kt...becoming W 10 to 15 kt after midnight.
Waves 1 ft.
.THU...NW winds 5 to 10 kt. Waves 1 ft. A chance of rain through the
night.

$$

ANZ534-080900-
Chesapeake Bay from Drum Point to Smith Point-
358 PM EST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM EST MONDAY THROUGH LATE
MONDAY NIGHT...

.REST OF THIS AFTERNOON...S winds 5 kt. Waves flat.
.TONIGHT...W winds 5 kt...becoming NW after midnight, then becoming
N 15 to 20 kt with gusts to 25 kt late. Waves flat...building to
2 ft after midnight.
.MON...NE winds 15 to 20 kt with gusts to 30 kt. Waves 4 ft. A
chance of snow. Vsby 1 to 3 NM.
.MON NIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Waves 2 to
3 ft.
.TUE...N winds 5 to 10 kt...becoming SW 10 to 15 kt in the
afternoon. Waves 1 ft.
.TUE NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.WED...SW winds 20 to 25 kt...becoming W after midnight. Waves 3 ft.
.THU...NW winds 15 to 20 kt...diminishing to 10 to 15 kt. Waves 1 to
2 ft. A chance of rain through the night.

$$

ANZ543-080900-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
358 PM EST Sun Dec 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM EST MONDAY THROUGH LATE
MONDAY NIGHT...

.REST OF THIS AFTERNOON...S winds 5 kt. Waves flat.
.TONIGHT...W winds 5 kt...becoming N 10 to 15 kt with gusts to 25 kt
after midnight. Waves flat...building to 2 ft after midnight.
.MON...NE winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft. A
chance of snow. Vsby 1 to 3 NM.
.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 10 to 15 kt in the
afternoon. Waves 1 ft.
.TUE NIGHT...SW winds 15 to 20 kt. Waves 2 ft.
.WED...SW winds 20 to 25 kt...becoming W after midnight. Waves 2 to
3 ft.
.THU...NW winds 15 to 20 kt...diminishing to 10 to 15 kt. Waves 1 to
2 ft. A chance of rain through the night.

$$