495
FZUS51 KLWX 041134
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
634 AM EST Tue Nov 4 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.

ANZ500-042100-
634 AM EST Tue Nov 4 2025

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

A warm front will lift across the waters overnight. A stronger cold
front will cross the waters Wednesday night, with high pressure
returning Thursday into Friday. Another cold front will likely cross
 this weekend. Small Craft Advisories will likely be needed
Wednesday  into Thursday.

$$

ANZ535-042100-
Tidal Potomac from Key Bridge to Indian Head-
634 AM EST Tue Nov 4 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.TODAY...W winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.TONIGHT...SW winds around 5 kt. Waves 1 ft.
.WED...SW winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
.WED NIGHT...W winds 10 to 15 kt...becoming NW after midnight. Gusts
up to 20 kt. Waves 1 ft.
.THU...NW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.THU NIGHT...E winds around 5 kt. Waves 1 ft.
.FRI...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain in the
evening. Rain likely after midnight.
.SAT...W winds 5 to 10 kt. Waves 1 ft.

$$

ANZ536-042100-
Tidal Potomac from Indian Head to Cobb Island-
634 AM EST Tue Nov 4 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.TODAY...W winds 10 kt. Waves 1 ft.
.TONIGHT...SW winds around 5 kt. Waves 1 ft.
.WED...SW winds 15 to 20 kt with gusts to 25 kt. Waves 1 to 2 ft.
.WED NIGHT...W winds 15 to 20 kt...becoming NW after midnight. Gusts
up to 25 kt. Waves 2 ft.
.THU...NW winds 10 to 15 kt. Waves 1 ft.
.THU NIGHT...E winds around 5 kt. Waves 1 ft.
.FRI...S winds 15 to 20 kt. Waves 1 to 2 ft. A chance of rain in the
evening. Rain likely after midnight.
.SAT...W winds 5 to 10 kt. Waves 1 ft.

$$

ANZ537-042100-
Tidal Potomac from Cobb Island to Smith Point-
634 AM EST Tue Nov 4 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.TODAY...NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.WED...SW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.WED NIGHT...SW winds 15 to 20 kt...becoming NW after midnight.
Gusts up to 25 kt. Waves 2 to 3 ft.
.THU...NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.THU NIGHT...N winds around 5 kt...becoming S after midnight. Waves
1 ft.
.FRI...S winds 15 to 20 kt. Waves 1 to 2 ft. A chance of rain in the
evening. Rain likely after midnight.
.SAT...W winds 10 to 15 kt...diminishing to 5 to 10 kt in the
afternoon and evening, then becoming S after midnight. Waves 1 to
2 ft.

$$

ANZ530-042100-
Chesapeake Bay north of Pooles Island-
634 AM EST Tue Nov 4 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.TODAY...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.TONIGHT...W winds 5 to 10 kt. Waves 1 ft.
.WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the late morning
and afternoon. Waves 1 to 2 ft.
.WED NIGHT...W winds 20 to 25 kt...becoming NW after midnight. Waves
2 ft.
.THU...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.THU NIGHT...NE winds around 5 kt. Waves 1 ft.
.FRI...S winds 20 to 25 kt. Waves 1 to 2 ft. Rain likely through the
night.
.SAT...W winds 10 to 15 kt...diminishing to 5 to 10 kt. Waves 1 ft.

$$

ANZ531-042100-
Chesapeake Bay from Pooles Island to Sandy Point-
634 AM EST Tue Nov 4 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.TODAY...W winds 15 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...W winds 5 to 10 kt. Waves 1 ft.
.WED...SW winds 10 to 15 kt. Gusts up to 20 kt. Waves 2 ft.
.WED NIGHT...W winds 20 to 25 kt...becoming NW after midnight. Waves
3 ft.
.THU...NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.THU NIGHT...N winds around 5 kt...becoming SE after midnight. Waves
1 ft.
.FRI...S winds 20 to 25 kt. Waves 2 to 3 ft. Rain likely through the
night.
.SAT...W winds 10 to 15 kt...becoming NW 5 to 10 kt in the evening,
then becoming S after midnight. Waves 1 to 2 ft.

$$

ANZ538-042100-
Patapsco River including Baltimore Harbor-
634 AM EST Tue Nov 4 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.TODAY...W winds 10 kt with gusts to 20 kt. Waves 1 ft.
.TONIGHT...W winds 5 to 10 kt. Waves 1 ft or less.
.WED...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED NIGHT...W winds 10 to 15 kt...becoming NW after midnight. Gusts
up to 20 kt. Waves 1 ft.
.THU...NW winds 10 to 15 kt. Waves 1 ft.
.THU NIGHT...NE winds around 5 kt. Waves flat.
.FRI...S winds 10 to 15 kt. Waves 1 ft. Rain likely through the
night.
.SAT...W winds 5 to 10 kt. Waves 1 ft or less.

$$

ANZ539-042100-
Chester River to Queenstown MD-
634 AM EST Tue Nov 4 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.TODAY...W winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...W winds 5 to 10 kt. Waves 1 ft.
.WED...S winds 10 to 15 kt. Gusts up to 20 kt. Waves 2 ft.
.WED NIGHT...W winds 15 to 20 kt...becoming NW after midnight. Gusts
up to 25 kt. Waves 3 ft.
.THU...NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.THU NIGHT...N winds around 5 kt...becoming SE after midnight. Waves
1 ft.
.FRI...S winds 15 to 20 kt. Waves 2 to 3 ft. A chance of rain in the
evening. Rain likely after midnight.
.SAT...W winds 10 to 15 kt...becoming NW 5 kt in the evening, then
becoming S after midnight. Waves 1 to 2 ft.

$$

ANZ532-042100-
Chesapeake Bay from Sandy Point to North Beach-
634 AM EST Tue Nov 4 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.TODAY...W winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...W winds 5 to 10 kt. Waves 1 ft.
.WED...SW winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft.
.WED NIGHT...SW winds 20 to 25 kt...becoming NW after midnight.
Waves 3 ft.
.THU...NW winds 15 to 20 kt. Waves 2 ft.
.THU NIGHT...NW winds 5 kt...becoming SE after midnight. Waves 1 ft.
.FRI...S winds 20 to 25 kt. Waves 2 ft...building to 4 ft. A chance
of rain in the evening. Rain likely after midnight.
.SAT...W winds 10 to 15 kt...becoming NW in the afternoon and
evening, then becoming S 5 to 10 kt after midnight. Waves 1 to 2 ft.


$$

ANZ540-042100-
Eastern Bay-
634 AM EST Tue Nov 4 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.TODAY...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.TONIGHT...W winds 5 to 10 kt. Waves 1 ft.
.WED...SW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.WED NIGHT...SW winds 15 to 20 kt...becoming NW after midnight.
Gusts up to 25 kt. Waves 2 ft.
.THU...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.THU NIGHT...N winds around 5 kt...becoming SE after midnight. Waves
1 ft.
.FRI...S winds 15 to 20 kt. Waves 2 ft. A chance of rain in the
evening. Rain likely after midnight.
.SAT...W winds 10 to 15 kt...becoming NW 5 to 10 kt in the afternoon
and evening, then becoming S after midnight. Waves 1 to 2 ft.

$$

ANZ533-042100-
Chesapeake Bay from North Beach to Drum Point-
634 AM EST Tue Nov 4 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.TODAY...W winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...W winds 5 to 10 kt. Waves 1 ft.
.WED...SW winds 20 to 25 kt. Waves 2 to 3 ft.
.WED NIGHT...SW winds 20 to 25 kt...becoming NW after midnight.
Gusts up to 30 kt. Waves 3 ft.
.THU...NW winds 15 to 20 kt. Waves 2 to 3 ft.
.THU NIGHT...N winds 5 kt...becoming SE after midnight. Waves 1 ft.
.FRI...S winds 10 to 15 kt...increasing to 20 to 25 kt. Waves 2 ft...
building to 4 ft. A chance of rain in the evening. Rain likely after
midnight.
.SAT...W winds 10 to 15 kt...becoming NW in the afternoon and
evening, then becoming S after midnight. Waves 1 to 2 ft.

$$

ANZ541-042100-
Choptank River to Cambridge MD and the Little Choptank River-
634 AM EST Tue Nov 4 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.TODAY...NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...W winds 5 to 10 kt. Waves 1 ft.
.WED...S winds 15 to 20 kt. Gusts up to 20 kt... increasing to 25 kt
in the afternoon. Waves 2 to 3 ft.
.WED NIGHT...SW winds 20 to 25 kt...becoming NW after midnight.
Waves 3 ft.
.THU...NW winds 15 to 20 kt. Waves 2 ft.
.THU NIGHT...N winds around 5 kt...becoming SE after midnight. Waves
1 ft.
.FRI...S winds 20 to 25 kt. Waves 2 to 3 ft. A chance of rain in the
evening. Rain likely after midnight.
.SAT...SW winds 10 to 15 kt...becoming NW 5 to 10 kt in the
afternoon and evening, then becoming S after midnight. Waves 1 to
2 ft.

$$

ANZ542-042100-
Patuxent River to Broomes Island MD-
634 AM EST Tue Nov 4 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.TODAY...W winds 10 kt with gusts to 20 kt. Waves 1 ft.
.TONIGHT...SW winds 5 kt. Waves less than 1 ft.
.WED...SW winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
.WED NIGHT...SW winds 10 to 15 kt...becoming NW after midnight.
Gusts up to 25 kt. Waves 1 ft.
.THU...NW winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...NE winds around 5 kt. Waves 1 ft.
.FRI...S winds 10 to 15 kt. Waves 1 ft. A chance of rain in the
evening. Rain likely after midnight.
.SAT...W winds 5 to 10 kt. Waves 1 ft.

$$

ANZ534-042100-
Chesapeake Bay from Drum Point to Smith Point-
634 AM EST Tue Nov 4 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.TODAY...NW winds 15 to 20 kt...becoming W 10 kt late. Gusts up to
25 kt. Waves 3 ft...subsiding to 2 ft late.
.TONIGHT...W winds 5 to 10 kt. Waves 1 ft.
.WED...SW winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
.WED NIGHT...SW winds 20 to 25 kt...becoming NW after midnight.
Gusts up to 30 kt. Waves 4 ft.
.THU...NW winds 15 to 20 kt. Waves 3 ft.
.THU NIGHT...N winds 5 to 10 kt...becoming SE after midnight. Waves
1 ft.
.FRI...S winds 20 to 25 kt. Waves 2 to 3 ft...building to 4 ft. A
chance of rain in the evening. Rain likely after midnight.
.SAT...SW winds 10 to 15 kt...becoming NW 5 to 10 kt in the
afternoon and evening, then becoming S after midnight. Waves 2 to
3 ft...subsiding to 1 ft.

$$

ANZ543-042100-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
634 AM EST Tue Nov 4 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.TODAY...NW winds 15 to 20 kt with gusts to 25 kt. Waves 1 to 2 ft.
.TONIGHT...W winds 5 to 10 kt. Waves 1 ft.
.WED...SW winds 20 to 25 kt with gusts to 30 kt. Waves 2 to 3 ft.
.WED NIGHT...SW winds 20 to 25 kt...becoming NW after midnight.
Gusts up to 30 kt. Waves 3 ft.
.THU...NW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.THU NIGHT...N winds 5 to 10 kt...becoming SE after midnight. Waves
1 ft.
.FRI...S winds 20 to 25 kt. Waves 2 to 3 ft. A chance of rain after
midnight.
.SAT...SW winds 15 to 20 kt...becoming W 5 to 10 kt. Waves 1 to
2 ft.

$$