805
FZUS51 KLWX 091135
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
635 AM EST Sun Nov 9 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.

ANZ500-092100-
635 AM EST Sun Nov 9 2025

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

A weak warm front lifts northward across the area this afternoon. At
 the same time, a strong low pressure system will approach the area
today before exiting the waters during the evening hours. High
pressure builds to the south by Tuesday into Wednesday. Another
frontal system tracks across the region by the middle of the week.
Small Craft Advisories will likely be needed this evening through
Wednesday as a result, with gales possible late Monday night into
Tuesday.

$$

ANZ535-092100-
Tidal Potomac from Key Bridge to Indian Head-
635 AM EST Sun Nov 9 2025

.TODAY...S winds 5 kt. Waves less than 1 ft. A chance of showers
this morning.
.TONIGHT...W winds 5 to 10 kt...becoming NW after midnight. Waves
1 ft. A chance of showers.
.MON...NW winds 10 kt. Waves 1 ft.
.MON NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.TUE...W winds 15 to 20 kt with gusts to 25 kt. Waves 1 ft.
.TUE NIGHT...SW winds 10 to 15 kt. Waves 1 ft.
.WED...SW winds 10 to 15 kt...becoming W 5 to 10 kt after midnight.
Waves 1 ft.
.THU...W winds 10 to 15 kt...becoming NW 5 kt after midnight. Waves
1 ft.

$$

ANZ536-092100-
Tidal Potomac from Indian Head to Cobb Island-
635 AM EST Sun Nov 9 2025

.TODAY...SE winds 5 kt...becoming S this afternoon. Waves 1 ft. A
chance of showers this morning with vsby 1 to 3 NM.
.TONIGHT...W winds 5 to 10 kt...becoming NW 10 to 15 kt with gusts
to 20 kt after midnight. Waves 1 ft. A chance of showers. Vsby 1 to
3 NM.
.MON...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.MON NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.TUE...W winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.TUE NIGHT...SW winds 10 kt...increasing to 15 to 20 kt after
midnight. Waves 1 ft.
.WED...SW winds 15 to 20 kt...becoming W 5 to 10 kt after midnight.
Waves 1 to 2 ft.
.THU...NW winds 5 to 10 kt. Waves 1 ft.

$$

ANZ537-092100-
Tidal Potomac from Cobb Island to Smith Point-
635 AM EST Sun Nov 9 2025

...GALE WATCH IN EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY
AFTERNOON...

.TODAY...SE winds 10 kt...becoming SW this afternoon. Waves 1 ft. A
chance of showers with a slight chance of tstms this morning with
vsby 1 NM or less.
.TONIGHT...SW winds 5 to 10 kt...becoming NW 10 to 15 kt with gusts
to 20 kt after midnight. Waves 1 to 2 ft. A chance of showers. Vsby
1 NM or less.
.MON...NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.MON NIGHT...NW winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
.TUE...W winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
.TUE NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.WED...SW winds 15 to 20 kt...becoming W 10 to 15 kt after midnight.
Waves 2 ft.
.THU...NW winds 10 to 15 kt. Waves 1 to 2 ft.

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

$$

ANZ530-092100-
Chesapeake Bay north of Pooles Island-
635 AM EST Sun Nov 9 2025

.TODAY...SE winds 5 kt. Waves less than 1 ft. Showers likely, mainly
this morning.
.TONIGHT...W winds 5 to 10 kt. Waves 1 ft. A chance of showers. Vsby
1 to 3 NM.
.MON...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.MON NIGHT...NW winds 15 to 20 kt with gusts to 25 kt. Waves 1 to
2 ft.
.TUE...W winds 20 to 25 kt with gusts to 30 kt. Waves 2 ft.
.TUE NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.WED...W winds 15 to 20 kt. Waves 1 to 2 ft.
.THU...W winds 15 to 20 kt...diminishing to 5 to 10 kt. Waves 1 to
2 ft.

$$

ANZ531-092100-
Chesapeake Bay from Pooles Island to Sandy Point-
635 AM EST Sun Nov 9 2025

.TODAY...SE winds 10 kt. Waves 1 ft. Showers likely, mainly this
morning.
.TONIGHT...W winds 10 to 15 kt with gusts to 20 kt... becoming NW
with gusts to 20 kt late. Waves 1 to 2 ft. Showers likely. Vsby 1 to
3 NM.
.MON...NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.MON NIGHT...NW winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
.TUE...W winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
.TUE NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Waves 2 to
3 ft.
.WED...SW winds 15 to 20 kt...becoming W. Waves 2 ft.
.THU...W winds 15 to 20 kt...diminishing to 10 kt after midnight.
Waves 1 to 2 ft.

$$

ANZ538-092100-
Patapsco River including Baltimore Harbor-
635 AM EST Sun Nov 9 2025

.TODAY...SE winds 5 kt. Waves less than 1 ft. Showers likely, mainly
this morning.
.TONIGHT...W winds 5 to 10 kt. Waves 1 ft. Showers likely. Vsby 1 to
3 NM.
.MON...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.MON NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.TUE...W winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.TUE NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED...SW winds 10 to 15 kt...becoming W. Waves 1 ft.
.THU...W winds 10 to 15 kt...diminishing to 5 kt after midnight.
Waves 1 ft.

$$

ANZ539-092100-
Chester River to Queenstown MD-
635 AM EST Sun Nov 9 2025

.TODAY...S winds 5 kt. Waves less than 1 ft. Showers likely, mainly
this morning.
.TONIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the late evening
and overnight. Waves 1 to 2 ft. Showers likely. Vsby 1 to 3 NM.
.MON...NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.MON NIGHT...NW winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.TUE...W winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
.TUE NIGHT...SW winds 10 to 15 kt with gusts to 25 kt. Waves 2 to
3 ft.
.WED...SW winds 10 to 15 kt...becoming W. Waves 2 ft.
.THU...W winds 10 to 15 kt. Waves 1 to 2 ft.

$$

ANZ532-092100-
Chesapeake Bay from Sandy Point to North Beach-
635 AM EST Sun Nov 9 2025

.TODAY...S winds 10 kt. Waves 1 ft. A chance of showers this
morning.
.TONIGHT...W winds 5 to 10 kt...becoming NW 10 to 15 kt with gusts
to 25 kt after midnight. Waves 1 to 2 ft. Showers likely. Vsby 1 to
3 NM.
.MON...NW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.MON NIGHT...NW winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
.TUE...W winds 20 to 25 kt with gusts to 35 kt. Waves 3 ft.
.TUE NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.WED...SW winds 15 to 20 kt...becoming W. Waves 2 to 3 ft.
.THU...W winds 15 to 20 kt...becoming NW 10 kt after midnight. Waves
1 to 2 ft.

$$

ANZ540-092100-
Eastern Bay-
635 AM EST Sun Nov 9 2025

.TODAY...S winds 10 kt. Waves 1 ft. Showers likely this morning.
.TONIGHT...W winds 5 to 10 kt...becoming NW 10 to 15 kt with gusts
to 20 kt after midnight. Waves 1 to 2 ft. Showers likely. Vsby 1 to
3 NM.
.MON...NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.MON NIGHT...NW winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
.TUE...W winds 20 to 25 kt with gusts to 30 kt. Waves 2 to 3 ft.
.TUE NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.WED...SW winds 15 to 20 kt...becoming W 10 to 15 kt. Waves 2 ft.
.THU...NW winds 10 to 15 kt. Waves 1 to 2 ft.

$$

ANZ533-092100-
Chesapeake Bay from North Beach to Drum Point-
635 AM EST Sun Nov 9 2025

...GALE WATCH IN EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY
AFTERNOON...

.TODAY...S winds 10 kt. Waves 1 ft. A chance of showers with a
slight chance of tstms this morning.
.TONIGHT...W winds 10 to 15 kt...becoming NW with gusts to 25 kt
after midnight. Waves 1 ft...building to 3 ft after midnight. A
chance of showers. Vsby 1 NM or less.
.MON...NW winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft.
.MON NIGHT...NW winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
.TUE...W winds 20 to 25 kt with gusts to 35 kt. Waves 4 ft.
.TUE NIGHT...SW winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
.WED...SW winds 15 to 20 kt...becoming W after midnight. Waves 2 to
3 ft.
.THU...NW winds 15 to 20 kt...diminishing to 10 kt after midnight.
Waves 1 to 2 ft.

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

$$

ANZ541-092100-
Choptank River to Cambridge MD and the Little Choptank River-
635 AM EST Sun Nov 9 2025

.TODAY...S winds 10 kt. Waves 1 ft. A chance of showers with a
slight chance of tstms this morning with vsby 1 NM or less.
.TONIGHT...W winds 10 to 15 kt...becoming NW with gusts to 25 kt
after midnight. Waves 1 to 2 ft. A chance of showers. Vsby 1 NM or
less.
.MON...NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.MON NIGHT...NW winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
.TUE...W winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
.TUE NIGHT...SW winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
.WED...SW winds 15 to 20 kt...becoming W 10 to 15 kt after midnight.
Waves 2 to 3 ft.
.THU...NW winds 10 to 15 kt. Waves 1 to 2 ft.

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

$$

ANZ542-092100-
Patuxent River to Broomes Island MD-
635 AM EST Sun Nov 9 2025

.TODAY...S winds 5 kt. Waves less than 1 ft. A chance of showers
with a slight chance of tstms this morning.
.TONIGHT...SW winds 5 to 10 kt...becoming NW after midnight. Waves
1 ft. A chance of showers. Vsby 1 NM or less.
.MON...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.MON NIGHT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
.TUE...W winds 15 to 20 kt with gusts to 25 kt. Waves 1 ft.
.TUE NIGHT...SW winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
.WED...SW winds 10 to 15 kt...becoming W 5 to 10 kt after midnight.
Waves 1 ft.
.THU...NW winds 10 to 15 kt...diminishing to 5 kt after midnight.
Waves 1 ft.

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

$$

ANZ534-092100-
Chesapeake Bay from Drum Point to Smith Point-
635 AM EST Sun Nov 9 2025

...GALE WATCH IN EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY
AFTERNOON...

.TODAY...SE winds 10 kt...becoming S this afternoon. Waves 1 to
2 ft. A chance of showers with a slight chance of tstms this morning
with vsby 1 NM or less.
.TONIGHT...SW winds 10 to 15 kt...becoming NW with gusts to 25 kt
after midnight. Waves 1 ft...building to 3 ft after midnight. A
chance of showers. Vsby 1 NM or less.
.MON...NW winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.MON NIGHT...NW winds 20 to 25 kt with gusts to 35 kt. Waves 4 ft. A
chance of showers.
.TUE...W winds 20 to 25 kt with gusts to 35 kt. Waves 5 ft.
.TUE NIGHT...SW winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft.
.WED...SW winds 20 to 25 kt...becoming W 15 to 20 kt after midnight.
Waves 3 ft.
.THU...NW winds 15 to 20 kt...diminishing to 10 kt. Waves 2 to 3 ft.


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

$$

ANZ543-092100-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
635 AM EST Sun Nov 9 2025

...GALE WATCH IN EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY
AFTERNOON...

.TODAY...SE winds 10 kt...becoming S this afternoon. Waves 1 ft. A
chance of showers with a slight chance of tstms this morning with
vsby 1 NM or less.
.TONIGHT...SW winds 10 to 15 kt...becoming NW with gusts to 20 kt
after midnight. Waves 1 to 2 ft. Showers likely. Vsby 1 NM or less.
.MON...NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.MON NIGHT...NW winds 25 to 30 kt. Waves 2 to 3 ft. A chance of
showers.
.TUE...W winds 20 to 25 kt with gusts to 35 kt. Waves 3 ft.
.TUE NIGHT...W winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
.WED...SW winds 20 to 25 kt...becoming W 15 to 20 kt after midnight.
Waves 2 to 3 ft.
.THU...NW winds 15 to 20 kt. Waves 1 to 2 ft.

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

$$