157
FZUS51 KLWX 221757
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1257 PM EST Sat Nov 22 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.

ANZ500-230900-
1257 PM EST Sat Nov 22 2025

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

A low pressure center will pass over the waters this afternoon. High
 pressure will briefly return Sunday into Monday before another low
pressure system and series of fronts cross Tuesday into the middle
part of next week. Small Craft Advisories will likely be needed
Sunday afternoon into Monday.

$$

ANZ535-230900-
Tidal Potomac from Key Bridge to Indian Head-
1257 PM EST Sat Nov 22 2025

.THIS AFTERNOON...N winds 10 kt. Waves 1 ft. A chance of showers.
.TONIGHT...N winds 5 to 10 kt until early morning...becoming light.
Waves 1 ft.
.SUN...SW winds around 5 kt...becoming NW with gusts to 25 kt late.
Waves 1 ft.
.SUN NIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt in the evening.
Waves 1 ft.
.MON...W winds around 5 kt. Waves 1 ft.
.MON NIGHT...S winds around 5 kt. Waves 1 ft.
.TUE...S winds 5 to 10 kt. Waves 1 ft. Rain likely.
.WED...SW winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft.
A chance of rain in the morning.

$$

ANZ536-230900-
Tidal Potomac from Indian Head to Cobb Island-
1257 PM EST Sat Nov 22 2025

.THIS AFTERNOON...N winds 10 kt. Waves 1 ft. A chance of showers.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...W winds 5 to 10 kt with gusts to 25 kt. Waves 1 ft.
.SUN NIGHT...NW winds 10 to 15 kt. Gusts up to 25 kt in the evening.
Waves 1 ft.
.MON...W winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...S winds around 5 kt. Waves 1 ft.
.TUE...S winds 5 to 10 kt. Waves 1 ft. A chance of rain in the
afternoon. Rain likely through the night.
.WED...SW winds 10 to 15 kt...becoming NW after midnight. Waves
1 ft. A chance of rain in the morning.

$$

ANZ537-230900-
Tidal Potomac from Cobb Island to Smith Point-
1257 PM EST Sat Nov 22 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING...

.THIS AFTERNOON...N winds 10 to 15 kt with gusts to 20 kt. Waves
2 ft. Showers likely.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...NW winds around 5 kt...becoming W in the afternoon. Waves
1 ft or less.
.SUN NIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.MON...NW winds 10 to 15 kt with gusts to 20 kt... becoming N around
5 kt in the afternoon. Waves 1 to 2 ft.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft or less.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain in the
afternoon. Rain through the night.
.WED...SW winds 10 to 15 kt...becoming NW after midnight. Waves 1 to
2 ft. A chance of rain in the morning.

$$

ANZ530-230900-
Chesapeake Bay north of Pooles Island-
1257 PM EST Sat Nov 22 2025

.THIS AFTERNOON...N winds 10 kt. Waves 1 ft. A chance of showers.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft or less.
.SUN...SE winds around 5 kt...becoming W 10 to 15 kt with gusts to
25 kt in the afternoon. Waves 1 ft or less.
.SUN NIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
.MON...NW winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...S winds around 5 kt. Waves flat.
.TUE...S winds 5 to 10 kt. Waves 1 ft. Rain likely through the
night. A chance of rain after midnight.
.WED...SW winds 10 to 15 kt...becoming W 15 to 20 kt. Waves 1 ft. A
chance of rain through the day.

$$

ANZ531-230900-
Chesapeake Bay from Pooles Island to Sandy Point-
1257 PM EST Sat Nov 22 2025

.THIS AFTERNOON...N winds 10 kt. Waves 1 ft. A chance of showers.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...S winds around 5 kt...becoming W 10 to 15 kt with gusts to
25 kt in the afternoon. Waves flat...building to 2 ft in the
afternoon.
.SUN NIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.MON...W winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves
1 to 2 ft.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft or less.
.TUE...S winds 5 to 10 kt. Waves 1 ft. Rain likely through the
night. A chance of rain after midnight.
.WED...SW winds 10 to 15 kt...becoming W 15 to 20 kt. Waves 1 to
2 ft. A chance of rain through the day.

$$

ANZ538-230900-
Patapsco River including Baltimore Harbor-
1257 PM EST Sat Nov 22 2025

.THIS AFTERNOON...N winds 10 kt. Waves 1 ft. A chance of showers.
.TONIGHT...N winds 5 to 10 kt until early morning...becoming light.
Waves 1 ft or less.
.SUN...W winds around 5 kt...increasing to 10 kt with gusts to 25 kt
late. Waves 1 ft or less.
.SUN NIGHT...NW winds 5 to 10 kt. Gusts up to 25 kt in the evening.
Waves 1 ft.
.MON...W winds 5 to 10 kt. Waves 1 ft or less.
.MON NIGHT...S winds around 5 kt. Waves flat.
.TUE...S winds 5 to 10 kt. Waves 1 ft. Rain likely through the
night. A chance of rain after midnight.
.WED...SW winds 10 to 15 kt...becoming NW after midnight. Waves
1 ft. A chance of rain through the day.

$$

ANZ539-230900-
Chester River to Queenstown MD-
1257 PM EST Sat Nov 22 2025

.THIS AFTERNOON...N winds 10 kt. Waves 1 ft. A chance of showers.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft or less.
.SUN...SE winds around 5 kt...becoming W 10 to 15 kt with gusts to
20 kt in the afternoon. Waves flat... building to 2 ft in the
afternoon.
.SUN NIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.MON...NW winds 10 to 15 kt with gusts to 20 kt... becoming W around
5 kt in the afternoon. Waves 1 to 2 ft.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft or less.
.TUE...S winds 5 to 10 kt. Waves 1 ft. A chance of rain in the
afternoon. Rain likely in the evening, then a chance of rain after
midnight.
.WED...SW winds 10 to 15 kt...becoming NW after midnight. Waves 1 to
2 ft. A chance of rain in the morning.

$$

ANZ532-230900-
Chesapeake Bay from Sandy Point to North Beach-
1257 PM EST Sat Nov 22 2025

.THIS AFTERNOON...N winds 10 kt with gusts to 20 kt. Waves 2 ft.
Showers likely.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...SE winds 5 kt...becoming W with gusts to 20 kt in the
afternoon. Waves 1 ft or less.
.SUN NIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.MON...NW winds 10 to 15 kt with gusts to 20 kt... becoming W 5 kt
in the afternoon. Waves 1 to 2 ft.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain in the
afternoon. Rain likely through the night.
.WED...SW winds 10 to 15 kt...becoming W 15 to 20 kt. Waves 1 to
2 ft. A chance of rain in the morning.

$$

ANZ540-230900-
Eastern Bay-
1257 PM EST Sat Nov 22 2025

.THIS AFTERNOON...N winds 10 kt. Waves 1 ft. Showers likely.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft or less.
.SUN...SE winds around 5 kt...becoming W in the afternoon. Waves
1 ft or less.
.SUN NIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.MON...NW winds 10 to 15 kt with gusts to 20 kt... becoming W around
5 kt in the afternoon. Waves 1 to 2 ft.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft or less.
.TUE...S winds 5 to 10 kt. Waves 1 ft. A chance of rain in the
afternoon. Rain likely through the night.
.WED...SW winds 10 to 15 kt...becoming NW after midnight. Waves 1 to
2 ft. A chance of rain in the morning.

$$

ANZ533-230900-
Chesapeake Bay from North Beach to Drum Point-
1257 PM EST Sat Nov 22 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING...

.THIS AFTERNOON...N winds 15 kt with gusts to 20 kt. Waves 2 ft.
Showers likely.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 to 2 ft.
.SUN...NW winds around 5 kt...becoming W in the afternoon. Waves
1 ft or less.
.SUN NIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.MON...NW winds 10 to 15 kt with gusts to 20 kt... becoming NE 5 kt
in the afternoon. Waves 1 to 2 ft.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain in the
afternoon. Rain through the night.
.WED...SW winds 10 to 15 kt...becoming W 15 to 20 kt. Waves 2 ft. A
chance of rain in the morning.

$$

ANZ541-230900-
Choptank River to Cambridge MD and the Little Choptank River-
1257 PM EST Sat Nov 22 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING...

.THIS AFTERNOON...N winds 10 to 15 kt with gusts to 20 kt. Waves
1 to 2 ft. Showers likely.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...SE winds around 5 kt...becoming W in the afternoon. Waves
1 ft or less.
.SUN NIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.MON...NW winds 10 to 15 kt with gusts to 20 kt... becoming N around
5 kt in the afternoon. Waves 1 to 2 ft.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft or less.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain in the
afternoon. Rain through the night.
.WED...SW winds 10 to 15 kt...becoming NW 15 to 20 kt after
midnight. Waves 1 to 2 ft. A chance of rain in the morning.

$$

ANZ542-230900-
Patuxent River to Broomes Island MD-
1257 PM EST Sat Nov 22 2025

.THIS AFTERNOON...N winds 10 kt with gusts to 20 kt. Waves 1 ft.
Showers likely.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...W winds around 5 kt. Waves 1 ft.
.SUN NIGHT...NW winds 10 kt with gusts to 20 kt. Waves 1 ft.
.MON...N winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves
1 ft.
.MON NIGHT...S winds 5 kt. Waves less than 1 ft.
.TUE...S winds 5 to 10 kt. Waves 1 ft. A chance of rain in the
afternoon. Rain through the night.
.WED...SW winds 5 to 10 kt...becoming NW 10 to 15 kt after midnight.
Waves 1 ft. A chance of rain in the morning.

$$

ANZ534-230900-
Chesapeake Bay from Drum Point to Smith Point-
1257 PM EST Sat Nov 22 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING...

.THIS AFTERNOON...N winds 15 kt with gusts to 20 kt. Waves 2 ft.
Showers likely.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 to 2 ft.
.SUN...NW winds 5 kt...becoming SW in the afternoon. Waves 1 ft.
.SUN NIGHT...NW winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.MON...NW winds 15 to 20 kt with gusts to 25 kt... becoming N 5 to
10 kt in the afternoon. Waves 3 ft... subsiding to 1 ft in the
afternoon.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft or less.
.TUE...S winds 15 to 20 kt. Waves 1 to 2 ft...building to 3 ft. A
chance of rain in the afternoon. Rain through the night.
.WED...SW winds 10 to 15 kt...becoming NW 15 to 20 kt after
midnight. Waves 2 to 3 ft. A chance of rain in the morning.

$$

ANZ543-230900-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1257 PM EST Sat Nov 22 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING...

.THIS AFTERNOON...N winds 15 kt with gusts to 20 kt. Waves 2 ft.
Showers likely.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...N winds 5 kt...becoming SW in the afternoon. Waves 1 ft or
less.
.SUN NIGHT...NW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.MON...NW winds 15 to 20 kt with gusts to 25 kt... diminishing to
5 to 10 kt in the afternoon. Waves 1 to 2 ft.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 ft or less.
.TUE...S winds 15 to 20 kt. Waves 1 to 2 ft. A chance of rain in the
afternoon. Rain through the night.
.WED...SW winds 10 to 15 kt...becoming NW 15 to 20 kt after
midnight. Waves 1 to 2 ft. A chance of rain in the morning.

$$