919
FZUS51 KLWX 072034
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
434 PM EDT Mon Apr 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.

ANZ500-080800-
434 PM EDT Mon Apr 7 2025

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

Waves of low pressure will ride along a stalled front to the south
through tonight. A secondary reinforcing cold front will cross the
waters late tonight. High pressure will build overhead by Wednesday.
 A low pressure system will approach from the west Thursday into
Friday.  Small Craft 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.

$$

ANZ535-080800-
Tidal Potomac from Key Bridge to Indian Head-
434 PM EDT Mon Apr 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH
TUESDAY AFTERNOON...

.REST OF THIS AFTERNOON...N winds 5 kt. Waves less than 1 ft.
Scattered showers.
.TONIGHT...NW winds 5 to 10 kt. Gusts up to 25 kt after midnight.
Waves 1 ft. Scattered showers.
.TUE...NW winds 10 to 15 kt with gusts to 30 kt. Waves 1 ft.
.TUE NIGHT...NW winds 5 to 10 kt. Gusts up to 25 kt in the evening.
Waves 1 ft.
.WED...W winds around 5 kt. Waves 1 ft.
.WED NIGHT...S winds 5 kt. Waves less than 1 ft.
.THU...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers through
the day, then showers likely through the night.
.FRI...NE winds 5 kt. Waves less than 1 ft. Showers. A chance of
tstms through the night, then a chance of showers after midnight.

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

$$

ANZ536-080800-
Tidal Potomac from Indian Head to Cobb Island-
434 PM EDT Mon Apr 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH
TUESDAY AFTERNOON...

.REST OF THIS AFTERNOON...N winds 5 kt. Waves less than 1 ft.
Numerous showers with isolated tstms.
.TONIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft.
Numerous showers.
.TUE...NW winds 10 to 15 kt with gusts to 30 kt. Waves 2 ft.
.TUE NIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt in the evening.
Waves 1 ft.
.WED...W winds around 5 kt. Waves 1 ft.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...S winds 5 to 10 kt. Waves 1 ft. A chance of showers through
the day, then showers likely through the night.
.FRI...S winds 5 kt...becoming NW after midnight. Waves 1 ft.
Showers. A chance of tstms through the night, then a chance of
showers after midnight.

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

$$

ANZ537-080800-
Tidal Potomac from Cobb Island to Smith Point-
434 PM EDT Mon Apr 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH
TUESDAY AFTERNOON...

.REST OF THIS AFTERNOON...N winds 10 kt. Waves 1 ft. Showers with
isolated tstms. Vsby 1 NM or less.
.TONIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft.
Showers. Vsby 1 NM or less.
.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 ft.
.WED...N winds 5 to 10 kt...becoming SE in the afternoon. Waves
1 ft.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...SE winds 10 to 15 kt. Waves 2 to 3 ft. A chance of showers in
the afternoon. Showers likely through the night.
.FRI...SE winds 5 to 10 kt...becoming NW after midnight. Waves 2 ft.
Showers. A chance of tstms through the night, then a chance of
showers after midnight.

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

$$

ANZ530-080800-
Chesapeake Bay north of Pooles Island-
434 PM EDT Mon Apr 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH
TUESDAY AFTERNOON...

.REST OF THIS AFTERNOON...N winds 5 kt. Waves less than 1 ft.
Scattered showers.
.TONIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves flat...
building to 2 ft after midnight. Scattered showers.
.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...W winds 5 kt. Waves less than 1 ft.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers through
the day, then showers likely through the night.
.FRI...E winds 5 to 10 kt. Waves 1 ft. Showers.

$$

ANZ531-080800-
Chesapeake Bay from Pooles Island to Sandy Point-
434 PM EDT Mon Apr 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH
TUESDAY AFTERNOON...

.REST OF THIS AFTERNOON...N winds 5 kt. Waves less than 1 ft.
Scattered showers.
.TONIGHT...NW winds 5 to 10 kt with gusts to 20 kt... increasing to
15 to 20 kt with gusts to 25 kt late. Waves 1 to 2 ft. Scattered
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 25 kt. Waves 2 to
3 ft.
.WED...NW winds 5 to 10 kt...becoming SW in the afternoon. Waves
1 ft.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...SE winds 10 to 15 kt. Waves 2 ft. A chance of showers through
the day, then showers likely through the night.
.FRI...SE winds 5 to 10 kt...becoming N after midnight. Waves 1 to
2 ft. Showers.

$$

ANZ538-080800-
Patapsco River including Baltimore Harbor-
434 PM EDT Mon Apr 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH
TUESDAY AFTERNOON...

.REST OF THIS AFTERNOON...N winds 5 kt. Waves less than 1 ft.
Scattered showers.
.TONIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft or
less. Scattered showers.
.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...W winds 5 kt. Waves less than 1 ft.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...S winds 10 to 15 kt...becoming SE 5 kt after midnight. Waves
1 to 2 ft. A chance of showers through the day, then showers likely
through the night.
.FRI...E winds 5 to 10 kt...becoming N after midnight. Waves 1 ft.
Showers.

$$

ANZ539-080800-
Chester River to Queenstown MD-
434 PM EDT Mon Apr 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH
TUESDAY AFTERNOON...

.REST OF THIS AFTERNOON...N winds 5 kt. Waves less than 1 ft.
Numerous showers.
.TONIGHT...NW winds 5 to 10 kt with gusts to 20 kt... increasing to
15 to 20 kt with gusts to 25 kt late. Waves 1 ft...building to 3 ft
after midnight. Numerous 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 25 kt. Waves 2 to
3 ft.
.WED...NW winds 5 to 10 kt...becoming SW in the afternoon. Waves
1 ft.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...SE winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers
through the day, then showers likely through the night.
.FRI...SE winds 5 to 10 kt...becoming N after midnight. Waves 1 to
2 ft. Showers.

$$

ANZ532-080800-
Chesapeake Bay from Sandy Point to North Beach-
434 PM EDT Mon Apr 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH
TUESDAY AFTERNOON...

.REST OF THIS AFTERNOON...N winds 10 kt. Waves 1 ft. Numerous
showers with isolated tstms.
.TONIGHT...NW winds 5 to 10 kt with gusts to 20 kt... increasing to
15 to 20 kt with gusts to 30 kt late. Waves 1 ft...building to 3 ft
after midnight. Numerous 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 25 kt. Waves 2 to
3 ft.
.WED...NW winds 5 to 10 kt...becoming S in the afternoon. Waves
1 ft.
.WED NIGHT...S winds 10 to 15 kt. Waves 2 ft.
.THU...S winds 10 to 15 kt. Waves 2 to 3 ft. A chance of showers
through the day, then showers likely through the night.
.FRI...SE winds 5 to 10 kt...becoming N after midnight. Waves 2 ft.
Showers. A chance of tstms through the night.

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

$$

ANZ540-080800-
Eastern Bay-
434 PM EDT Mon Apr 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH
TUESDAY AFTERNOON...

.REST OF THIS AFTERNOON...N winds 10 kt. Waves 1 ft. Numerous
showers with isolated tstms.
.TONIGHT...NW winds 5 to 10 kt with gusts to 20 kt... increasing to
15 to 20 kt with gusts to 25 kt late. Waves 1 to 2 ft. Numerous
showers.
.TUE...NW winds 15 to 20 kt with gusts to 30 kt. Waves 2 to 3 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.WED...NW winds 5 to 10 kt...becoming SW in the afternoon. Waves
1 ft.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...SE winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers in
the afternoon. Showers likely through the night.
.FRI...SE winds 5 to 10 kt...becoming N after midnight. Waves 1 ft.
Showers.

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

$$

ANZ533-080800-
Chesapeake Bay from North Beach to Drum Point-
434 PM EDT Mon Apr 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH
TUESDAY AFTERNOON...

.REST OF THIS AFTERNOON...N winds 10 kt. Waves 1 ft. Numerous
showers with isolated tstms.
.TONIGHT...NW winds 5 to 10 kt with gusts to 20 kt... increasing to
15 to 20 kt with gusts to 30 kt late. Waves 1 ft...building to 3 ft
after midnight. Numerous 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 25 kt. Waves 2 to
3 ft.
.WED...NW winds 5 to 10 kt...becoming S in the afternoon. Waves
1 ft.
.WED NIGHT...S winds 10 to 15 kt. Waves 2 ft.
.THU...SE winds 10 to 15 kt. Waves 2 to 3 ft. A chance of showers in
the afternoon. Showers likely through the night.
.FRI...SE winds 5 to 10 kt...becoming N after midnight. Waves 2 ft.
Showers. A chance of tstms through the night.

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

$$

ANZ541-080800-
Choptank River to Cambridge MD and the Little Choptank River-
434 PM EDT Mon Apr 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH
TUESDAY AFTERNOON...

.REST OF THIS AFTERNOON...N winds 10 kt. Waves 1 ft. Numerous
showers with isolated tstms.
.TONIGHT...NW winds 5 to 10 kt with gusts to 20 kt... increasing to
15 to 20 kt with gusts to 30 kt late. Waves 1 to 2 ft. Numerous
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 25 kt. Waves 2 to
3 ft.
.WED...NW winds 5 to 10 kt...becoming SW in the afternoon. Waves
1 ft.
.WED NIGHT...S winds 10 to 15 kt. Waves 1 ft.
.THU...SE winds 10 to 15 kt. Waves 2 ft. A chance of showers in the
afternoon. Showers likely through the night.
.FRI...SE winds 5 to 10 kt...becoming N after midnight. Waves 1 to
2 ft. Showers. A chance of tstms through the night.

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

$$

ANZ542-080800-
Patuxent River to Broomes Island MD-
434 PM EDT Mon Apr 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH
TUESDAY AFTERNOON...

.REST OF THIS AFTERNOON...N winds 10 kt. Waves 1 ft. Showers with
isolated tstms.
.TONIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
Showers.
.TUE...NW winds 15 to 20 kt with gusts to 30 kt. Waves 1 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED...NW winds 5 to 10 kt...becoming S in the afternoon. Waves
1 ft.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...SE winds 10 to 15 kt. Waves 1 ft. A chance of showers in the
afternoon. Showers likely through the night.
.FRI...SE winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft.
Showers. A chance of tstms through the night.

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

$$

ANZ534-080800-
Chesapeake Bay from Drum Point to Smith Point-
434 PM EDT Mon Apr 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH
TUESDAY AFTERNOON...

.REST OF THIS AFTERNOON...N winds 10 kt. Waves 2 ft. Showers with
isolated tstms. Vsby 1 NM or less.
.TONIGHT...N winds 5 to 10 kt with gusts to 20 kt... becoming NW
15 to 20 kt with gusts to 30 kt late. Waves 2 to 3 ft. Showers. Vsby
1 NM or less.
.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 25 kt. Waves 3 ft.
.WED...N winds 5 to 10 kt...becoming S in the afternoon. Waves 1 to
2 ft.
.WED NIGHT...S winds 10 to 15 kt. Waves 2 ft.
.THU...SE winds 10 to 15 kt. Waves 3 ft. A chance of showers in the
afternoon. Showers likely through the night.
.FRI...SE winds 5 to 10 kt...becoming NW 10 to 15 kt after midnight.
Waves 2 ft. Showers. A chance of tstms through the night.

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

$$

ANZ543-080800-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
434 PM EDT Mon Apr 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH
TUESDAY AFTERNOON...

.REST OF THIS AFTERNOON...N winds 10 kt. Waves 1 ft. Showers with
isolated tstms. Vsby 1 NM or less.
.TONIGHT...N winds 5 to 10 kt with gusts to 20 kt... becoming NW
15 to 20 kt with gusts to 30 kt late. Waves 1 to 2 ft. Showers. Vsby
1 NM or less.
.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 25 kt. Waves 2 ft.
.WED...N winds 5 to 10 kt...becoming SW in the afternoon. Waves
1 ft.
.WED NIGHT...S winds 10 to 15 kt. Waves 1 ft.
.THU...SE winds 10 to 15 kt. Waves 2 ft. A chance of showers in the
evening. Showers likely after midnight.
.FRI...SE winds 5 to 10 kt...becoming NW after midnight. Waves 2 ft.
Showers. A chance of tstms through the night.

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

$$