947
FZUS51 KLWX 080233
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1033 PM EDT Tue Oct 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-
1033 PM EDT Tue Oct 7 2025

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

A cold front approaching from the west will track across the waters
through Wednesday morning. A strong area of Canadian high pressure
will build in from the north and west Thursday into Friday. A
coastal low will likely approach from the south and east this
weekend. Small Craft Advisories may be needed Wednesday through
Thursday. Additional advisories are possible this weekend.

$$

ANZ535-080800-
Tidal Potomac from Key Bridge to Indian Head-
1033 PM EDT Tue Oct 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT WEDNESDAY THROUGH
WEDNESDAY EVENING...

.REST OF TONIGHT...S winds 10 kt. Waves 1 ft. A slight chance of
showers late this evening, then showers with vsby 1 to 3 NM.
.WED...SW winds 5 to 10 kt with gusts to 20 kt... becoming N 10 to
15 kt with gusts to 25 kt in the afternoon. Waves 1 ft. Showers.
Vsby 1 to 3 NM.
.WED NIGHT...N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.THU...N winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...NE winds around 5 kt. Waves 1 ft.
.FRI...E winds around 5 kt. Waves 1 ft.
.FRI NIGHT...E winds around 5 kt. Waves 1 ft.
.SAT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...N winds 10 to 15 kt. Waves 1 ft. A chance of showers after
midnight.

$$

ANZ536-080800-
Tidal Potomac from Indian Head to Cobb Island-
1033 PM EDT Tue Oct 7 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT WEDNESDAY THROUGH
WEDNESDAY EVENING...

.REST OF TONIGHT...S winds 10 kt with gusts to 20 kt. Waves 1 ft.
Showers with vsby 1 to 3 NM.
.WED...SW winds 5 to 10 kt...becoming NW 10 to 15 kt in the
afternoon. Gusts up to 20 kt. Waves 1 to 2 ft. Showers. Vsby 1 NM or
less.
.WED NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.THU...N winds 10 to 15 kt. Waves 1 ft.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 kt. Waves less than 1 ft.
.FRI NIGHT...E winds around 5 kt. Waves 1 ft.
.SAT...NE winds 10 to 15 kt. Waves 1 ft.
.SUN...N winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers
after midnight.

$$

ANZ537-080800-
Tidal Potomac from Cobb Island to Smith Point-
1033 PM EDT Tue Oct 7 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.REST OF TONIGHT...S winds 15 kt with gusts to 25 kt. Waves 2 ft. A
chance of showers with vsby 1 NM or less.
.WED...SW winds 10 to 15 kt...becoming NW 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Waves 2 ft. Showers likely. Vsby 1 NM
or less.
.WED NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
.THU...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft.
.THU NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.FRI...E winds 5 to 10 kt. Waves 1 to 2 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 to 2 ft.
.SAT...NE winds 15 to 20 kt. Waves 2 to 3 ft. A chance of showers
after midnight.
.SUN...NE winds 25 to 30 kt. Waves 3 ft...building to 4 ft. A chance
of showers.

$$

ANZ530-080800-
Chesapeake Bay north of Pooles Island-
1033 PM EDT Tue Oct 7 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.REST OF TONIGHT...S winds 15 kt with gusts to 25 kt. Waves 1 to
2 ft. A chance of showers late this evening, then showers with vsby
1 to 3 NM.
.WED...SW winds 10 to 15 kt...becoming N in the afternoon. Gusts up
to 20 kt. Waves 1 to 2 ft. Showers. Vsby 1 NM or less.
.WED NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.THU...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds around 5 kt. Waves 1 ft.
.SAT...NE winds 10 to 15 kt. Waves 1 ft.
.SUN...NE winds 15 to 20 kt. Waves 2 ft. A chance of showers through
the night.

$$

ANZ531-080800-
Chesapeake Bay from Pooles Island to Sandy Point-
1033 PM EDT Tue Oct 7 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.REST OF TONIGHT...S winds 15 kt with gusts to 25 kt. Waves 2 to
3 ft. A chance of showers late this evening, then showers with vsby
1 to 3 NM.
.WED...SW winds 10 to 15 kt...becoming N 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Waves 2 ft. Showers. Vsby 1 NM or
less.
.WED NIGHT...N winds 20 to 25 kt. Waves 3 ft.
.THU...N winds 15 to 20 kt. Waves 2 ft.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 kt. Waves less than 1 ft.
.SAT...NE winds 10 to 15 kt. Waves 1 to 2 ft.
.SUN...NE winds 20 to 25 kt. Waves 2 to 3 ft. A chance of showers
through the night.

$$

ANZ538-080800-
Patapsco River including Baltimore Harbor-
1033 PM EDT Tue Oct 7 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.REST OF TONIGHT...S winds 10 kt with gusts to 20 kt. Waves 1 ft. A
chance of showers late this evening, then showers with vsby 1 to
3 NM.
.WED...W winds 5 to 10 kt...becoming N 15 kt in the afternoon. Gusts
up to 20 kt. Waves 1 ft. Showers. Vsby 1 to 3 NM.
.WED NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.THU...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft or less.
.FRI...E winds 5 kt. Waves flat.
.FRI NIGHT...E winds around 5 kt. Waves flat.
.SAT...NE winds 5 to 10 kt. Waves 1 ft or less.
.SUN...NE winds 10 to 15 kt. Waves 1 ft. A chance of showers through
the night.

$$

ANZ539-080800-
Chester River to Queenstown MD-
1033 PM EDT Tue Oct 7 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.REST OF TONIGHT...S winds 15 kt with gusts to 25 kt. Waves 2 ft. A
slight chance of showers late this evening, then showers with vsby
1 to 3 NM.
.WED...SW winds 10 to 15 kt...becoming N in the afternoon. Gusts up
to 20 kt. Waves 2 ft. Showers. Vsby 1 NM or less.
.WED NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.THU...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft or less.
.FRI NIGHT...E winds 5 kt. Waves flat.
.SAT...NE winds 10 to 15 kt. Waves 1 ft.
.SUN...NE winds 15 to 20 kt. Waves 2 ft. A chance of showers.

$$

ANZ532-080800-
Chesapeake Bay from Sandy Point to North Beach-
1033 PM EDT Tue Oct 7 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.REST OF TONIGHT...S winds 15 kt with gusts to 25 kt. Waves 2 to
3 ft. A slight chance of showers late this evening, then showers
with vsby 1 to 3 NM.
.WED...SW winds 10 to 15 kt...becoming N 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Waves 2 to 3 ft. Showers. Vsby 1 NM or
less.
.WED NIGHT...N winds 20 to 25 kt. Waves 3 ft.
.THU...N winds 15 to 20 kt. Waves 2 to 3 ft.
.THU NIGHT...NE winds 10 to 15 kt. Waves 1 to 2 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 15 to 20 kt. Waves 1 to 2 ft.
.SUN...NE winds 20 to 25 kt. Waves 3 ft. A chance of showers.

$$

ANZ540-080800-
Eastern Bay-
1033 PM EDT Tue Oct 7 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.REST OF TONIGHT...S winds 15 kt with gusts to 25 kt. Waves 2 ft. A
slight chance of showers late this evening, then showers with vsby
1 to 3 NM.
.WED...SW winds 10 to 15 kt...becoming N 15 to 20 kt in the
afternoon. Waves 2 ft. Showers. Vsby 1 NM or less.
.WED NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.THU...N winds 15 to 20 kt. Waves 1 to 2 ft.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 kt. Waves less than 1 ft.
.SAT...NE winds 10 to 15 kt. Waves 1 ft.
.SUN...NE winds 15 to 20 kt. Waves 2 ft. A chance of showers.

$$

ANZ533-080800-
Chesapeake Bay from North Beach to Drum Point-
1033 PM EDT Tue Oct 7 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.REST OF TONIGHT...S winds 15 kt with gusts to 25 kt. Waves 2 to
3 ft. A chance of showers with vsby 1 NM or less.
.WED...SW winds 10 to 15 kt...becoming NW 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Waves 2 to 3 ft. Showers. Vsby 1 NM or
less.
.WED NIGHT...N winds 20 to 25 kt. Waves 4 ft.
.THU...N winds 20 to 25 kt. Waves 3 ft.
.THU NIGHT...NE winds 10 to 15 kt. Waves 2 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 15 to 20 kt. Waves 1 to 2 ft... building to 3 ft
after midnight.
.SUN...NE winds 20 kt...increasing to 25 to 30 kt. Waves 3 ft...
building to 4 ft. A chance of showers.

$$

ANZ541-080800-
Choptank River to Cambridge MD and the Little Choptank River-
1033 PM EDT Tue Oct 7 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.REST OF TONIGHT...S winds 15 kt with gusts to 25 kt. Waves 2 ft.
Showers likely with vsby 1 NM or less.
.WED...SW winds 10 to 15 kt...becoming NW 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Waves 2 ft. Showers. Vsby 1 NM or
less.
.WED NIGHT...N winds 20 to 25 kt. Waves 2 ft.
.THU...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 15 to 20 kt. Waves 1 to 2 ft.
.SUN...NE winds 20 to 25 kt. Waves 2 to 3 ft. A chance of showers.

$$

ANZ542-080800-
Patuxent River to Broomes Island MD-
1033 PM EDT Tue Oct 7 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.REST OF TONIGHT...S winds 10 kt with gusts to 20 kt. Waves 1 ft.
Showers likely with a slight chance of tstms with vsby 1 NM or less.
.WED...SW winds 5 to 10 kt...becoming NW 10 to 15 kt in the
afternoon. Gusts up to 20 kt. Waves 1 ft. Showers likely. Vsby 1 NM
or less.
.WED NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 1 ft.
.THU...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 kt. Waves less than 1 ft.
.SAT...NE winds 10 to 15 kt. Waves 1 ft.
.SUN...NE winds 20 to 25 kt. Waves 1 ft. A chance of showers.

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

$$

ANZ534-080800-
Chesapeake Bay from Drum Point to Smith Point-
1033 PM EDT Tue Oct 7 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.REST OF TONIGHT...S winds 15 kt with gusts to 25 kt. Waves 3 ft. A
chance of showers.
.WED...SW winds 10 to 15 kt...becoming N 15 to 20 kt late. Gusts up
to 25 kt. Waves 3 ft. Showers likely. Vsby 1 NM or less.
.WED NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft.
.THU...N winds 20 to 25 kt. Waves 3 ft.
.THU NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.FRI...E winds 10 to 15 kt. Waves 2 ft.
.FRI NIGHT...E winds 10 to 15 kt. Waves 1 to 2 ft.
.SAT...NE winds 20 to 25 kt. Waves 2 to 3 ft... building to 4 ft
after midnight. A chance of showers after midnight.
.SUN...NE winds 25 to 30 kt. Waves 4 ft...building to 5 ft. A chance
of showers.

$$

ANZ543-080800-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1033 PM EDT Tue Oct 7 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

.REST OF TONIGHT...S winds 15 kt with gusts to 25 kt. Waves 2 ft. A
chance of showers with vsby 1 to 3 NM.
.WED...SW winds 10 to 15 kt...becoming N 15 to 20 kt late. Gusts up
to 25 kt. Waves 2 ft. Showers. Vsby 1 NM or less.
.WED NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
.THU...N winds 20 to 25 kt...becoming NE 10 to 15 kt in the
afternoon. Waves 2 ft.
.THU NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft.
.FRI...E winds 10 to 15 kt. Waves 1 ft.
.FRI NIGHT...E winds 10 to 15 kt. Waves 1 ft.
.SAT...NE winds 20 to 25 kt. Waves 1 to 2 ft. A chance of showers
after midnight.
.SUN...NE winds 25 to 30 kt. Waves 2 to 3 ft. A chance of showers.

$$