704
FZUS51 KLWX 061134
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
734 AM EDT Sun Apr 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.

ANZ500-062000-
734 AM EDT Sun Apr 6 2025

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

A cold front will slowly move through the area today. As the front
stalls to the south, a wave of low pressure will ride along it
tonight into Monday. A secondary reinforcing cold front will cross
the waters Monday night. High pressure will build overhead by
Wednesday.  Small Craft Advisories are likely late Monday night
through Tuesday  night. Additional advisories may be needed
Thursday.  Boaters should be aware of the threats of boating in cold
water,  even when air temperatures are warm. Visit
weather.gov/safety/coldwater for more information.

$$

ANZ535-062000-
Tidal Potomac from Key Bridge to Indian Head-
734 AM EDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...NW winds 5 to 10 kt with gusts to 20 kt... becoming N with
gusts to 20 kt this afternoon. Waves 1 ft. Scattered showers.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft. Rain. Patchy fog. Vsby
1 to 3 NM.
.MON...N winds 5 to 10 kt. Waves 1 ft. Rain. Patchy fog. Vsby 1 to
3 NM.
.MON NIGHT...W winds around 5 kt...becoming NW 10 to 15 kt with
gusts to 20 kt after midnight. Waves 1 ft. A chance of showers.
.TUE...NW winds 10 to 15 kt with gusts to 30 kt. Waves 1 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts to 25 kt...diminishing
to 5 kt after midnight. Waves 1 ft.
.WED...SW winds around 5 kt. Waves 1 ft.
.THU...S winds 5 to 10 kt. Waves 1 ft. A chance of showers.

$$

ANZ536-062000-
Tidal Potomac from Indian Head to Cobb Island-
734 AM EDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...SW winds 15 kt...becoming NW this afternoon. Gusts up to
25 kt. Waves 1 to 2 ft. Scattered showers this morning, then
scattered showers with isolated tstms this afternoon.
.TONIGHT...NE winds 5 to 10 kt. Waves 1 ft. Rain. Patchy fog. Vsby
1 NM or less.
.MON...N winds 5 to 10 kt. Waves 1 ft. Rain. Patchy fog. Vsby 1 to
3 NM.
.MON NIGHT...NW winds around 5 kt...increasing to 10 to 15 kt with
gusts to 20 kt after midnight. Waves 1 ft. A chance of showers.
.TUE...NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED...SW winds 5 kt...becoming S after midnight. Waves 1 ft.
.THU...S winds 5 to 10 kt. Waves 1 ft. A chance of showers through
the night.

Winds and waves higher and visibilities lower in and near tstms.

$$

ANZ537-062000-
Tidal Potomac from Cobb Island to Smith Point-
734 AM EDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...

.TODAY...SW winds 15 kt...becoming N late. Gusts up to 25 kt. Waves
2 ft. Scattered showers with isolated tstms this afternoon.
.TONIGHT...NE winds 5 to 10 kt with gusts to 20 kt. Waves 2 ft.
Rain. Patchy fog. Vsby 1 to 3 NM.
.MON...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Rain.
Patchy fog. Vsby 1 to 3 NM.
.MON NIGHT...NW winds 5 to 10 kt...increasing to 15 to 20 kt with
gusts to 25 kt after midnight. Waves 1 to 2 ft. A chance of showers.
.TUE...NW winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 to
3 ft.
.WED...N winds 5 to 10 kt...becoming SE. Waves 1 to 2 ft.
.THU...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers
through the night.

Winds and waves higher and visibilities lower in and near tstms.

$$

ANZ530-062000-
Chesapeake Bay north of Pooles Island-
734 AM EDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...

.TODAY...N winds 5 to 10 kt. Gusts up to 20 kt late this morning and
afternoon. Waves 1 ft. Patchy fog this morning. Scattered showers
this morning, then numerous showers this afternoon. Vsby 1 to 3 NM
this morning.
.TONIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Rain. Patchy fog. Vsby 1 to 3 NM.
.MON...NE winds 10 to 15 kt with gusts to 20 kt... becoming N 5 kt
in the afternoon. Waves 1 to 2 ft. Rain. Patchy fog. Vsby 1 to 3 NM.
.MON NIGHT...W winds 5 kt...becoming NW 15 to 20 kt with gusts to
25 kt after midnight. Waves 1 to 2 ft.
.TUE...NW winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
.TUE NIGHT...NW winds 10 to 15 kt. Gusts up to 30 kt...diminishing
to 20 kt after midnight. Waves 1 to 2 ft.
.WED...W winds 5 to 10 kt...becoming S. Waves 1 ft.
.THU...S winds 5 to 10 kt. Waves 1 ft. A chance of showers in the
evening. Showers likely after midnight.

$$

ANZ531-062000-
Chesapeake Bay from Pooles Island to Sandy Point-
734 AM EDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...

.TODAY...N winds 5 to 10 kt with gusts to 20 kt... increasing to
15 kt with gusts to 20 kt this afternoon. Waves 1 to 2 ft. Patchy
fog this morning. Scattered showers this morning, then numerous
showers this afternoon. Vsby 1 to 3 NM this morning.
.TONIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Rain. Patchy fog. Vsby 1 to 3 NM.
.MON...N winds 10 to 15 kt with gusts to 20 kt... diminishing to
5 to 10 kt late. Waves 1 to 2 ft. Rain. Vsby 1 to 3 NM.
.MON NIGHT...W winds 5 to 10 kt...becoming NW 15 to 20 kt with gusts
to 25 kt after midnight. Waves 1 ft... building to 3 ft after
midnight. A chance of showers.
.TUE...NW winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
.TUE NIGHT...NW winds 15 to 20 kt. Gusts up to 30 kt...diminishing
to 20 kt after midnight. Waves 2 to 3 ft.
.WED...W winds 5 to 10 kt...becoming S. Waves 1 ft.
.THU...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers in
the evening. Showers likely after midnight.

$$

ANZ538-062000-
Patapsco River including Baltimore Harbor-
734 AM EDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...N winds 5 to 10 kt. Gusts up to 20 kt late this morning and
afternoon. Waves 1 ft or less. Patchy fog this morning. Scattered
showers this morning, then numerous showers this afternoon. Vsby
1 to 3 NM this morning.
.TONIGHT...N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. Rain.
Patchy fog. Vsby 1 to 3 NM.
.MON...N winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves
1 ft. Rain. Vsby 1 to 3 NM.
.MON NIGHT...W winds 5 kt...becoming NW 10 to 15 kt with gusts to
25 kt after midnight. Waves 1 ft or less.
.TUE...NW winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
.TUE NIGHT...NW winds 10 to 15 kt. Gusts up to 25 kt in the evening.
Waves 1 to 2 ft.
.WED...SW winds 5 kt. Waves less than 1 ft.
.THU...S winds 5 to 10 kt. Waves 1 ft. A chance of showers through
the night. Showers likely after midnight.

$$

ANZ539-062000-
Chester River to Queenstown MD-
734 AM EDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...

.TODAY...NW winds 5 to 10 kt with gusts to 20 kt... becoming N 15 kt
with gusts to 20 kt this afternoon. Waves 1 ft or less...building to
2 ft this afternoon. Patchy fog this morning. Scattered showers.
Vsby 1 to 3 NM this morning.
.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Rain. Patchy fog. Vsby 1 to 3 NM.
.MON...NE winds 10 to 15 kt with gusts to 20 kt... becoming N 5 kt
late. Waves 1 to 2 ft. Rain. Vsby 1 to 3 NM.
.MON NIGHT...NW winds 5 kt...increasing to 15 to 20 kt with gusts to
25 kt after midnight. Waves 1 ft... building to 3 ft after midnight.
A chance of showers.
.TUE...NW winds 20 kt with gusts to 30 kt. Waves 3 ft.
.TUE NIGHT...NW winds 15 to 20 kt. Gusts up to 30 kt...diminishing
to 20 kt after midnight. Waves 2 to 3 ft.
.WED...W winds 5 to 10 kt...becoming S. Waves 1 ft.
.THU...S winds 10 to 15 kt. Waves 1 ft. A chance of showers in the
evening. Showers likely after midnight.

$$

ANZ532-062000-
Chesapeake Bay from Sandy Point to North Beach-
734 AM EDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...

.TODAY...NW winds 5 kt...becoming N 15 kt with gusts to 25 kt late
this morning and afternoon. Waves 1 to 2 ft. Scattered showers.
.TONIGHT...NE winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
Rain. Patchy fog. Vsby 1 to 3 NM.
.MON...N winds 10 to 15 kt with gusts to 25 kt. Waves 2 to 3 ft.
Rain. Vsby 1 to 3 NM.
.MON NIGHT...NW winds 5 to 10 kt...increasing to 15 to 20 kt with
gusts to 30 kt after midnight. Waves 1 ft... building to 3 ft after
midnight. A chance of showers.
.TUE...NW winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
.TUE NIGHT...NW winds 15 to 20 kt with gusts to 30 kt. Waves 2 to
3 ft.
.WED...NW winds 5 to 10 kt...becoming S. Waves 1 ft.
.THU...S winds 10 to 15 kt. Waves 2 ft. A chance of showers in the
evening. Showers likely after midnight.

$$

ANZ540-062000-
Eastern Bay-
734 AM EDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...

.TODAY...W winds 5 kt...becoming N 15 kt with gusts to 25 kt late
this morning and afternoon. Waves 1 ft or less... building to 2 ft
this afternoon. Isolated showers this morning, then scattered
showers this afternoon.
.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft. Rain. Patchy fog. Vsby 1 to 3 NM.
.MON...NE winds 10 to 15 kt with gusts to 20 kt... becoming N 5 kt
late. Waves 1 to 2 ft. Rain. Vsby 1 to 3 NM.
.MON NIGHT...NW winds 5 kt...increasing to 15 to 20 kt with gusts to
25 kt after midnight. Waves 1 to 2 ft. A chance of showers.
.TUE...NW winds 20 kt with gusts to 30 kt. Waves 3 ft.
.TUE NIGHT...NW winds 15 to 20 kt. Gusts up to 30 kt...diminishing
to 20 kt after midnight. Waves 2 to 3 ft.
.WED...W winds 5 to 10 kt...becoming S. Waves 1 ft.
.THU...S winds 10 to 15 kt. Waves 1 ft. A chance of showers in the
evening. Showers likely after midnight.

$$

ANZ533-062000-
Chesapeake Bay from North Beach to Drum Point-
734 AM EDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...

.TODAY...SW winds 15 kt...becoming N this afternoon. Gusts up to
25 kt. Waves 2 to 3 ft. Isolated showers this morning, then
scattered showers this afternoon.
.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 to
3 ft. Rain. Patchy fog. Vsby 1 to 3 NM.
.MON...N winds 10 to 15 kt. Gusts up to 25 kt in the morning. Waves
2 to 3 ft. Rain. Patchy fog. Vsby 1 to 3 NM.
.MON NIGHT...NW winds 5 to 10 kt...increasing to 15 to 20 kt with
gusts to 30 kt after midnight. Waves 1 ft... building to 3 ft after
midnight. A chance of showers.
.TUE...NW winds 15 to 20 kt with gusts to 30 kt. Waves 4 ft.
.TUE NIGHT...NW winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
.WED...NW winds 5 to 10 kt...becoming S. Waves 1 to 2 ft.
.THU...S winds 10 to 15 kt. Waves 2 ft. A chance of showers through
the night.

$$

ANZ541-062000-
Choptank River to Cambridge MD and the Little Choptank River-
734 AM EDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...

.TODAY...SW winds 15 kt...becoming N this afternoon. Gusts up to
25 kt. Waves 2 ft. Scattered showers this afternoon.
.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Rain. Patchy fog. Vsby 1 to 3 NM.
.MON...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Rain. Patchy fog. Vsby 1 to 3 NM.
.MON NIGHT...NW winds 5 kt...increasing to 15 to 20 kt with gusts to
30 kt after midnight. Waves 1 ft... building to 3 ft after midnight.
A chance of showers.
.TUE...NW winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
.TUE NIGHT...NW winds 15 to 20 kt with gusts to 30 kt. Waves 2 to
3 ft.
.WED...W winds 5 to 10 kt...becoming S. Waves 1 ft.
.THU...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers
through the night.

$$

ANZ542-062000-
Patuxent River to Broomes Island MD-
734 AM EDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...SW winds 15 kt...becoming NW this afternoon. Gusts up to
25 kt. Waves 1 ft. Isolated showers this morning, then scattered
showers with isolated tstms this afternoon.
.TONIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the evening.
Waves 1 ft. Rain. Patchy fog. Vsby 1 to 3 NM.
.MON...N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. Rain.
Patchy fog. Vsby 1 to 3 NM.
.MON NIGHT...NW winds 5 kt...increasing to 10 to 15 kt with gusts to
25 kt after midnight. Waves 1 ft. A chance of showers.
.TUE...NW winds 15 to 20 kt with gusts to 25 kt. Waves 1 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
.WED...NW winds 5 to 10 kt...becoming S. Waves 1 ft.
.THU...S winds 5 to 10 kt. Waves 1 ft. A chance of showers through
the night.

Winds and waves higher and visibilities lower in and near tstms.

$$

ANZ534-062000-
Chesapeake Bay from Drum Point to Smith Point-
734 AM EDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...

.TODAY...SW winds 15 kt...becoming N late. Gusts up to 25 kt. Waves
3 ft. Scattered showers this afternoon.
.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 to
3 ft. Rain. Patchy fog. Vsby 1 to 3 NM.
.MON...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft.
Rain. Patchy fog. Vsby 1 to 3 NM.
.MON NIGHT...NW winds 5 to 10 kt...increasing to 20 to 25 kt with
gusts to 30 kt after midnight. Waves 2 to 3 ft. Showers likely.
.TUE...NW winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft.
.TUE NIGHT...NW winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
.WED...N winds 10 to 15 kt...becoming SE 5 to 10 kt. Waves 1 to
2 ft.
.THU...S winds 10 to 15 kt. Waves 2 ft. A chance of showers through
the night.

$$

ANZ543-062000-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
734 AM EDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...

.TODAY...SW winds 15 kt...becoming N late. Gusts up to 25 kt. Waves
1 to 2 ft. Scattered showers this afternoon.
.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Rain. Patchy fog. Vsby 1 to 3 NM.
.MON...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Rain. Patchy fog. Vsby 1 to 3 NM.
.MON NIGHT...N winds 5 to 10 kt...becoming NW 15 to 20 kt with gusts
to 30 kt after midnight. Waves 1 to 2 ft. Showers likely.
.TUE...NW winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
.TUE NIGHT...NW winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
.WED...N winds 10 to 15 kt...becoming W 5 to 10 kt in the afternoon,
then becoming S. Waves 1 to 2 ft.
.THU...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers
through the night.

$$