733
FZUS51 KLWX 070258
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
957 PM 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.

ANZ500-070900-
957 PM EST Sat Dec 6 2025

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

Weak high pressure will build back across the area through tonight.
A stronger cold front crosses the waters late Sunday into early
Monday. 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. Small Craft Advisories will
likely be needed late SUnday into Monday, and again Tuesday through
Wednesday.

$$

ANZ535-070900-
Tidal Potomac from Key Bridge to Indian Head-
957 PM EST Sat Dec 6 2025

.REST OF TONIGHT...NW winds around 5 kt. Waves 1 ft or less.
.SUN...SE winds around 5 kt. Waves 1 ft or less.
.SUN NIGHT...W winds around 5 kt...becoming N late. Waves 1 ft.
.MON...N winds 10 to 15 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...S 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...W winds 5 to 10 kt. Waves 1 ft. A chance of rain and snow
through the night.

$$

ANZ536-070900-
Tidal Potomac from Indian Head to Cobb Island-
957 PM EST Sat Dec 6 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EST SUNDAY...

.REST OF TONIGHT...NW winds 5 kt. Waves less than 1 ft. Areas of
dense fog. Vsby 1 NM or less.
.SUN...SE winds around 5 kt. Waves 1 ft or less. Areas of dense fog.
Vsby 1 NM or less.
.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 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.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...W winds 10 kt...becoming SW. Waves 1 ft. A chance of rain
through the night. A chance of snow after midnight.

$$

ANZ537-070900-
Tidal Potomac from Cobb Island to Smith Point-
957 PM EST Sat Dec 6 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EST SUNDAY...

.REST OF TONIGHT...NW winds 5 kt. Waves less than 1 ft. Areas of
dense fog. Vsby 1 NM or less.
.SUN...E winds around 5 kt. Waves 1 ft or less. Areas of dense fog.
Vsby 1 NM or less.
.SUN NIGHT...SW winds around 5 kt...becoming NW after midnight, then
becoming N 15 to 20 kt late. 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...becoming NE 5 to 10 kt after
midnight. Waves 2 to 3 ft.
.TUE...NW winds 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 ft.
.THU...W winds 10 to 15 kt...becoming SW. Waves 1 to 2 ft. A chance
of rain through the night.

$$

ANZ530-070900-
Chesapeake Bay north of Pooles Island-
957 PM EST Sat Dec 6 2025

.REST OF TONIGHT...NW winds 5 kt. Waves less than 1 ft.
.SUN...W winds around 5 kt. Waves 1 ft.
.SUN NIGHT...SW 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 with gusts to 25 kt. Waves 1 to 2 ft.
.MON NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.TUE...SE winds 5 to 10 kt. Waves 1 ft.
.TUE NIGHT...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 2 ft. A chance of rain in the afternoon. A chance of rain
after midnight.
.THU...W winds 10 to 15 kt. Waves 1 ft. A chance of rain through the
night. A chance of snow after midnight.

$$

ANZ531-070900-
Chesapeake Bay from Pooles Island to Sandy Point-
957 PM EST Sat Dec 6 2025

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

$$

ANZ538-070900-
Patapsco River including Baltimore Harbor-
957 PM EST Sat Dec 6 2025

.REST OF TONIGHT...NW winds 5 kt. Waves flat.
.SUN...E winds around 5 kt. Waves flat.
.SUN NIGHT...SW winds 5 kt...becoming NW 10 to 15 kt with gusts to
20 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...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 5 to 10 kt. Waves 1 ft.
.WED...SW winds 10 to 15 kt...becoming W after midnight. Waves 1 ft.
A chance of rain in the afternoon. A chance of rain after midnight.
.THU...W winds 10 to 15 kt...diminishing to 5 to 10 kt. Waves 1 ft.
A chance of rain and snow through the night.

$$

ANZ539-070900-
Chester River to Queenstown MD-
957 PM EST Sat Dec 6 2025

.REST OF TONIGHT...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 NW 10 to 15 kt with gusts 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 2 ft.
.MON NIGHT...NE winds 5 to 10 kt. Waves 1 to 2 ft.
.TUE...S winds 5 to 10 kt. 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 kt...becoming W after midnight. Waves 2 ft. A
chance of rain after midnight.
.THU...W winds 10 to 15 kt...becoming SW. Waves 1 to 2 ft. A chance
of rain through the night. A chance of snow after midnight.

$$

ANZ532-070900-
Chesapeake Bay from Sandy Point to North Beach-
957 PM EST Sat Dec 6 2025

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

$$

ANZ540-070900-
Eastern Bay-
957 PM EST Sat Dec 6 2025

.REST OF TONIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.SUN...E winds 5 kt. Waves flat.
.SUN NIGHT...SW winds 5 kt...becoming NW after midnight, then
becoming N 15 to 20 kt late. Waves 1 ft.
.MON...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.MON NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Waves 1 ft.
.TUE...SE winds 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...W winds 10 to 15 kt...becoming SW. Waves 1 to 2 ft. A chance
of rain through the night. A chance of snow after midnight.

$$

ANZ533-070900-
Chesapeake Bay from North Beach to Drum Point-
957 PM EST Sat Dec 6 2025

.REST OF TONIGHT...NW winds 10 kt...becoming N late. 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 to 2 ft.
.MON...N winds 20 to 25 kt. Waves 4 ft.
.MON NIGHT...NE winds 15 to 20 kt...diminishing to 5 to 10 kt after
midnight. Waves 2 to 3 ft.
.TUE...SE winds 5 to 10 kt...becoming S 15 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 20 to 25 kt...becoming W 15 to 20 kt after midnight.
Waves 3 ft.
.THU...W winds 15 kt...becoming SW in the evening, then becoming W
after midnight. Waves 2 ft. A chance of rain through the night.

$$

ANZ541-070900-
Choptank River to Cambridge MD and the Little Choptank River-
957 PM EST Sat Dec 6 2025

.REST OF TONIGHT...NW winds 10 kt...becoming N late. Waves 1 ft.
.SUN...E winds 5 kt. Waves less than 1 ft.
.SUN NIGHT...SW winds 5 kt...becoming NW 15 to 20 kt with gusts to
25 kt after midnight. Waves 1 to 2 ft.
.MON...N winds 20 to 25 kt. Waves 2 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 5 kt...becoming S 10 to 15 kt with gusts to 20 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 20 to 25 kt...becoming W 15 to 20 kt after midnight.
Waves 2 to 3 ft.
.THU...W winds 10 to 15 kt...becoming SW in the evening, then
becoming W after midnight. Waves 1 to 2 ft. A chance of rain through
the night.

$$

ANZ542-070900-
Patuxent River to Broomes Island MD-
957 PM EST Sat Dec 6 2025

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

$$

ANZ534-070900-
Chesapeake Bay from Drum Point to Smith Point-
957 PM EST Sat Dec 6 2025

.REST OF TONIGHT...NW winds 5 to 10 kt...becoming N late. Waves
1 ft.
.SUN...NE winds 5 to 10 kt...becoming SE in the afternoon. Waves
1 ft or less.
.SUN NIGHT...SW winds 5 kt...becoming NW after midnight, then
becoming N 15 to 20 kt late. Waves 1 to 2 ft.
.MON...N winds 20 to 25 kt. Waves 4 ft.
.MON NIGHT...NE winds 15 to 20 kt. Gusts up to 25 kt in the evening.
Waves 2 to 3 ft.
.TUE...N winds 5 kt...becoming SW 10 to 15 kt in the afternoon.
Waves 1 to 2 ft.
.TUE NIGHT...SW winds 15 to 20 kt. Waves 3 ft.
.WED...SW winds 20 to 25 kt...becoming W 15 to 20 kt after midnight.
Waves 3 ft.
.THU...W winds 15 to 20 kt...becoming SW. Waves 2 to 3 ft. A chance
of rain through the night.

$$

ANZ543-070900-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
957 PM EST Sat Dec 6 2025

.REST OF TONIGHT...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 NW after midnight, then
becoming N 15 to 20 kt late. 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. Gusts up to 25 kt in the evening.
Waves 1 to 2 ft.
.TUE...N winds 5 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...W winds 15 to 20 kt...becoming SW 10 to 15 kt. Waves 1 to
2 ft. A chance of rain through the night.

$$