269
FZUS51 KLWX 131734
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
134 PM EDT Mon Oct 13 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.

ANZ500-140800-
134 PM EDT Mon Oct 13 2025

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

An area of low pressure east of the Delmarva will gradually move
offshore Tuesday into Wednesday. A prolonged period of hazardous
marine conditions is expected to continue through the middle of the
week. Brief periods of gale force winds may return late Monday
afternoon into Monday night. Otherwise, Small Craft Advisories will
likely be needed through Thursday.

$$

ANZ535-140800-
Tidal Potomac from Key Bridge to Indian Head-
134 PM EDT Mon Oct 13 2025

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

.THIS AFTERNOON...N winds 15 kt with gusts to 30 kt. Waves 2 ft. A
chance of showers.
.TONIGHT...N winds 10 to 15 kt. Gusts up to 30 kt... diminishing to
20 kt after midnight. Waves 1 to 2 ft. Showers likely.
.TUE...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
.TUE NIGHT...N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.WED...N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.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.
.FRI...W winds around 5 kt. Waves 1 ft or less.

$$

ANZ536-140800-
Tidal Potomac from Indian Head to Cobb Island-
134 PM EDT Mon Oct 13 2025

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

.THIS AFTERNOON...N winds 15 kt with gusts to 25 kt. Waves 2 ft. A
chance of showers.
.TONIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. A
chance of showers.
.TUE...N winds 15 to 20 kt. Waves 1 to 2 ft.
.TUE NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED NIGHT...N winds 10 to 15 kt. Waves 1 ft.
.THU...N winds 5 to 10 kt. Waves 1 ft.
.FRI...NW winds 5 to 10 kt...becoming SW. Waves 1 ft.

$$

ANZ537-140800-
Tidal Potomac from Cobb Island to Smith Point-
134 PM EDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.THIS AFTERNOON...N winds 20 kt with gusts to 30 kt. Waves 3 ft. A
chance of showers.
.TONIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft.
Showers likely.
.TUE...N winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft. A chance
of showers.
.TUE NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.WED...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.WED NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.THU...N winds 15 to 20 kt. Waves 2 to 3 ft.
.FRI...N winds 10 to 15 kt...becoming W around 5 kt. Waves 1 to
2 ft.

$$

ANZ530-140800-
Chesapeake Bay north of Pooles Island-
134 PM EDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.THIS AFTERNOON...N winds 20 kt with gusts to 30 kt. Waves 2 ft.
Showers likely.
.TONIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
Showers likely. Vsby 1 to 3 NM.
.TUE...N winds 15 to 20 kt with gusts to 25 kt. Waves 1 to 2 ft.
.TUE NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED NIGHT...N winds 15 to 20 kt. Waves 1 ft.
.THU...N winds 10 to 15 kt. Waves 1 ft.
.FRI...NW winds 5 to 10 kt. Waves 1 ft.

$$

ANZ531-140800-
Chesapeake Bay from Pooles Island to Sandy Point-
134 PM EDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.THIS AFTERNOON...N winds 20 to 25 kt with gusts to 30 kt. Waves
3 ft. Showers likely. Vsby 1 to 3 NM.
.TONIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
Showers likely. Vsby 1 to 3 NM.
.TUE...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft.
.TUE NIGHT...N winds 15 kt with gusts to 20 kt. Waves 2 ft.
.WED...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.WED NIGHT...N winds 15 to 20 kt. Waves 2 to 3 ft.
.THU...N winds 15 to 20 kt. Waves 2 ft.
.FRI...N winds 10 to 15 kt...becoming W around 5 kt. Waves 1 to
2 ft...subsiding to flat after midnight.

$$

ANZ538-140800-
Patapsco River including Baltimore Harbor-
134 PM EDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.THIS AFTERNOON...N winds 15 to 20 kt with gusts to 30 kt. Waves
2 ft. Showers likely.
.TONIGHT...N winds 15 kt with gusts to 30 kt. Waves 2 ft. Showers
likely.
.TUE...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
.TUE NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.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.
.FRI...NW winds 5 to 10 kt...becoming light. Waves 1 ft or less.

$$

ANZ539-140800-
Chester River to Queenstown MD-
134 PM EDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.THIS AFTERNOON...N winds 20 kt with gusts to 30 kt. Waves 3 ft.
Showers likely. Vsby 1 to 3 NM.
.TONIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
Showers likely.
.TUE...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft.
.TUE NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.WED...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.WED NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.THU...N winds 10 to 15 kt. Waves 2 ft.
.FRI...NW winds 5 to 10 kt...becoming W after midnight. Waves 1 ft
or less.

$$

ANZ532-140800-
Chesapeake Bay from Sandy Point to North Beach-
134 PM EDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.THIS AFTERNOON...N winds 25 kt with gusts to 30 kt. Waves 4 ft.
Showers likely.
.TONIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft.
Showers likely. Vsby 1 to 3 NM.
.TUE...N winds 20 to 25 kt. Waves 3 ft.
.TUE NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 to
3 ft.
.WED...N winds 15 kt with gusts to 20 kt. Waves 2 ft.
.WED NIGHT...N winds 20 to 25 kt. Waves 3 ft.
.THU...N winds 15 to 20 kt. Waves 2 ft.
.FRI...N winds 10 to 15 kt...becoming W 5 kt. Waves 1 to 2 ft.

$$

ANZ540-140800-
Eastern Bay-
134 PM EDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.THIS AFTERNOON...N winds 20 kt with gusts to 30 kt. Waves 2 ft.
Showers likely. Vsby 1 to 3 NM.
.TONIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 2 to 3 ft.
Showers likely.
.TUE...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.TUE NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.WED...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.THU...N winds 10 to 15 kt. Waves 1 to 2 ft.
.FRI...NW winds 5 to 10 kt...becoming W after midnight. Waves 1 ft
or less.

$$

ANZ533-140800-
Chesapeake Bay from North Beach to Drum Point-
134 PM EDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.THIS AFTERNOON...N winds 25 kt with gusts to 30 kt. Waves 4 ft...
except around 3 ft near the mouth of the Choptank. A chance of
showers.
.TONIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 5 ft.
Showers likely. Vsby 1 to 3 NM.
.TUE...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft.
.TUE NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.WED...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.WED NIGHT...N winds 20 to 25 kt. Waves 3 ft.
.THU...N winds 15 to 20 kt. Waves 3 ft.
.FRI...N winds 10 to 15 kt...becoming W 5 kt. Waves 1 to 2 ft.

$$

ANZ541-140800-
Choptank River to Cambridge MD and the Little Choptank River-
134 PM EDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.THIS AFTERNOON...N winds 20 to 25 kt with gusts to 30 kt. Waves
3 ft. A chance of showers.
.TONIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
Showers likely.
.TUE...N winds 20 to 25 kt with gusts to 30 kt. Waves 2 to 3 ft.
.TUE NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.WED...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.WED NIGHT...N winds 20 to 25 kt. Waves 2 to 3 ft.
.THU...N winds 15 to 20 kt. Waves 2 ft.
.FRI...N winds 10 to 15 kt...becoming W around 5 kt. Waves 1 to
2 ft.

$$

ANZ542-140800-
Patuxent River to Broomes Island MD-
134 PM EDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.THIS AFTERNOON...N winds 20 kt with gusts to 30 kt. Waves 1 ft. A
chance of showers.
.TONIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 1 ft.
Showers likely. Vsby 1 to 3 NM.
.TUE...N winds 15 to 20 kt with gusts to 25 kt. Waves 1 ft.
.TUE NIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
.WED...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.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.
.FRI...NW winds 5 to 10 kt...becoming SW after midnight. Waves 1 ft.


$$

ANZ534-140800-
Chesapeake Bay from Drum Point to Smith Point-
134 PM EDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.THIS AFTERNOON...N winds 25 kt with gusts to 30 kt. Waves 5 ft. A
chance of showers.
.TONIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 5 ft.
Showers likely. Vsby 1 to 3 NM.
.TUE...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft. A chance
of showers.
.TUE NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 4 ft.
.WED...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.WED NIGHT...N winds 20 to 25 kt. Waves 4 ft.
.THU...N winds 20 to 25 kt. Waves 3 ft.
.FRI...N winds 15 to 20 kt...becoming W 5 to 10 kt. Waves 2 to
3 ft...subsiding to 1 ft.

$$

ANZ543-140800-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
134 PM EDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.THIS AFTERNOON...N winds 25 kt with gusts to 30 kt. Waves 3 ft. A
chance of showers.
.TONIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
Showers likely.
.TUE...N winds 20 to 25 kt with gusts to 30 kt. Waves 2 to 3 ft.
.TUE NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.WED...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.WED NIGHT...N winds 20 to 25 kt. Waves 2 to 3 ft.
.THU...N winds 15 to 20 kt. Waves 2 ft.
.FRI...N winds 15 to 20 kt...becoming NW 5 to 10 kt. Waves 1 to
2 ft.

$$