803
FZUS51 KLWX 071735
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
134 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-
134 PM EDT Tue Oct 7 2025

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

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

$$

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

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING...

.THIS AFTERNOON...S winds 10 kt with gusts to 20 kt. Waves 1 ft.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft. Showers. 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 NM or less.
.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.
.SAT...NE winds 5 to 10 kt. Waves 1 ft.

$$

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

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING...

.THIS AFTERNOON...S winds 10 kt with gusts to 20 kt. Waves 1 ft.
.TONIGHT...S winds 10 kt with gusts to 20 kt. Waves 1 ft. Showers.
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 around 5 kt. Waves 1 ft.
.SAT...NE winds 10 to 15 kt. Waves 1 ft.

$$

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

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...S winds 10 kt with gusts to 20 kt. Waves 1 to
2 ft.
.TONIGHT...S winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. A
chance of showers. 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 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.
.SAT...NE winds 15 to 20 kt. Waves 2 to 3 ft. A chance of showers
after midnight.

$$

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

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...S winds 15 kt with gusts to 20 kt. Waves 1 ft.
.TONIGHT...S winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
Showers. Vsby 1 NM or less.
.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.
.SAT...NE winds 10 to 15 kt. Waves 1 ft.

$$

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

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...S winds 15 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...S winds 10 to 15 kt with gusts to 25 kt. Waves 2 to 3 ft.
Showers. Vsby 1 NM or less.
.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.
.SAT...NE winds 10 to 15 kt. Waves 1 to 2 ft.

$$

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

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...S winds 10 kt with gusts to 20 kt. Waves 1 ft.
.TONIGHT...S winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Showers. Vsby 1 NM or less.
.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 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 with gusts to 20 kt. Waves 1 ft.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft or less.
.FRI...E winds around 5 kt. Waves 1 ft or less.
.SAT...NE winds 5 to 10 kt. Waves 1 ft or less.

$$

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

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...S winds 10 kt with gusts to 20 kt. Waves 1 to
2 ft.
.TONIGHT...S winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
Showers. 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.
.SAT...NE winds 10 to 15 kt. Waves 1 ft.

$$

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

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...S winds 15 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...S winds 15 kt...becoming SW late. Gusts up to 25 kt.
Waves 3 ft. Showers. 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.
.SAT...NE winds 15 to 20 kt. Waves 1 to 2 ft.

$$

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

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...S winds 10 to 15 kt with gusts to 20 kt. Waves
1 ft.
.TONIGHT...S winds 10 to 15 kt...becoming SW late. Gusts up to
25 kt. Waves 2 ft. Showers. 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 or less.
.SAT...NE winds 10 to 15 kt. Waves 1 ft.

$$

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

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...S winds 15 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...S winds 15 kt...becoming SW late. Gusts up to 25 kt.
Waves 3 ft. Showers. 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.
.SAT...NE winds 15 to 20 kt. Waves 1 to 2 ft... building to 3 ft
after midnight.

$$

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

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...S winds 10 to 15 kt with gusts to 20 kt. Waves
1 to 2 ft.
.TONIGHT...S winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
Showers. 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.
.SAT...NE winds 15 to 20 kt. Waves 1 to 2 ft.

$$

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

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...S winds 10 kt with gusts to 20 kt. Waves 1 ft.
.TONIGHT...S winds 10 kt with gusts to 20 kt. Waves 1 ft. Showers.
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. 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.
.SAT...NE winds 10 to 15 kt. Waves 1 ft.

$$

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

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...S winds 15 kt with gusts to 20 kt. Waves 2 ft.
.TONIGHT...S winds 15 kt with gusts to 25 kt. Waves 3 ft. A chance
of showers. Vsby 1 NM or less.
.WED...SW winds 10 to 15 kt...becoming N 15 to 20 kt late. Gusts up
to 25 kt. Waves 3 ft. Showers. 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 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.

$$

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

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...S winds 10 to 15 kt with gusts to 20 kt. Waves
1 to 2 ft.
.TONIGHT...S winds 15 kt with gusts to 25 kt. Waves 2 ft. Showers
likely. 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.
.SAT...NE winds 20 to 25 kt. Waves 1 to 2 ft. A chance of showers
after midnight.

$$