661
FZUS51 KLWX 252358
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
658 PM EST Tue Nov 25 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.

ANZ500-260900-
658 PM EST Tue Nov 25 2025

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

A warm front will lift across the Mid-Atlantic tonight, followed by
a cold front crossing from west to east Wednesday morning. A second
stronger cold front will follow Wednesday afternoon and evening. Low
 pressure will linger over southeastern Canada while high pressure
builds across the Midwest and Tennessee Valley through Friday. High
pressure will move overhead Saturday, then move offshore Sunday into
 early next week as the next systems approach from the west. Small
Craft Advisories will likely be needed through Friday night, with
gales possible Friday.

$$

ANZ535-260900-
Tidal Potomac from Key Bridge to Indian Head-
658 PM EST Tue Nov 25 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
...GALE WARNING IN EFFECT FROM WEDNESDAY EVENING THROUGH LATE
WEDNESDAY NIGHT...

.TONIGHT...S winds 5 to 10 kt. Waves 1 ft. Rain likely this evening,
then showers with isolated tstms after midnight. Patchy fog after
midnight. Vsby 1 to 3 NM...decreasing to 1 NM or less after
midnight.
.WED...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED NIGHT...W winds 15 to 20 kt with gusts to 35 kt...diminishing
to 5 to 10 kt with gusts to 20 kt after midnight. Waves 1 to 2 ft.
.THU...W winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
.THU NIGHT...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.FRI...W winds 10 to 15 kt with gusts to 30 kt. Waves 1 ft.
.FRI NIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt in the evening.
Waves 1 ft.
.SAT...SW winds around 5 kt. Waves 1 ft.
.SUN...SW winds 5 kt. Waves less than 1 ft. A chance of rain.

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

$$

ANZ536-260900-
Tidal Potomac from Indian Head to Cobb Island-
658 PM EST Tue Nov 25 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EST WEDNESDAY THROUGH
LATE WEDNESDAY NIGHT...

.TONIGHT...S winds 5 to 10 kt. Waves 1 ft. Rain likely this evening,
then showers with isolated tstms after midnight. Patchy fog after
midnight. Vsby 1 to 3 NM...decreasing to 1 NM or less after
midnight.
.WED...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED NIGHT...W winds 10 to 15 kt. Gusts up to 30 kt... diminishing
to 20 kt after midnight. Waves 1 to 2 ft.
.THU...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.THU NIGHT...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.FRI...W winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.FRI NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Waves 1 ft.
.SAT...SW winds around 5 kt. Waves 1 ft.
.SUN...SW winds 5 kt...becoming NW after midnight. Waves 1 ft. A
chance of rain.

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

$$

ANZ537-260900-
Tidal Potomac from Cobb Island to Smith Point-
658 PM EST Tue Nov 25 2025

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

.TONIGHT...S winds 15 kt with gusts to 20 kt. Waves 2 ft. Scattered
showers this evening, then showers with isolated tstms after
midnight. Patchy fog after midnight with vsby 1 NM or less.
.WED...SW winds 10 to 15 kt. Waves 1 to 2 ft. Scattered showers.
Patchy fog. Vsby 1 to 3 NM.
.WED NIGHT...W winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.THU...W winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.THU NIGHT...W winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.FRI...W winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.FRI NIGHT...NW winds 15 to 20 kt with gusts to 25 kt. Waves 2 to
3 ft.
.SAT...N winds 5 to 10 kt...becoming S. Waves 1 ft or less.
.SUN...S winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft.
A chance of rain through the night.

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

$$

ANZ530-260900-
Chesapeake Bay north of Pooles Island-
658 PM EST Tue Nov 25 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON...
...GALE WARNING IN EFFECT FROM WEDNESDAY EVENING THROUGH LATE
WEDNESDAY NIGHT...

.TONIGHT...SE winds 10 kt...becoming SW late this evening and
overnight. Waves 1 ft. Rain this evening, then scattered showers
with isolated tstms after midnight. Patchy fog. Vsby 1 to 3 NM...
decreasing to 1 NM or less after midnight.
.WED...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Scattered showers. Patchy fog. Vsby 1 to 3 NM.
.WED NIGHT...W winds 15 to 20 kt. Gusts up to 35 kt... diminishing
to 25 kt late. Waves 2 ft.
.THU...W winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.THU NIGHT...W winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.FRI...W winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
.FRI NIGHT...W winds 15 to 20 kt with gusts to 25 kt. Waves 1 to
2 ft.
.SAT...W winds 5 to 10 kt...becoming S. Waves 1 ft or less.
.SUN...S winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft.
A chance of rain.

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

$$

ANZ531-260900-
Chesapeake Bay from Pooles Island to Sandy Point-
658 PM EST Tue Nov 25 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON...
...GALE WARNING IN EFFECT FROM WEDNESDAY EVENING THROUGH LATE
WEDNESDAY NIGHT...

.TONIGHT...S winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft. Rain
this evening, then numerous showers with isolated tstms after
midnight. Patchy fog. Vsby 1 to 3 NM... decreasing to 1 NM or less
after midnight.
.WED...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Scattered showers. Patchy fog. Vsby 1 NM or less.
.WED NIGHT...W winds 20 to 25 kt. Gusts up to 35 kt... diminishing
to 25 kt late. Waves 3 ft.
.THU...W winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.THU NIGHT...W winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
.FRI...W winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
.FRI NIGHT...NW winds 20 to 25 kt. Waves 2 to 3 ft.
.SAT...W winds 5 to 10 kt...becoming S. Waves 1 ft.
.SUN...SW winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft.
A chance of rain.

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

$$

ANZ538-260900-
Patapsco River including Baltimore Harbor-
658 PM EST Tue Nov 25 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON...
...GALE WARNING IN EFFECT FROM WEDNESDAY EVENING THROUGH LATE
WEDNESDAY NIGHT...

.TONIGHT...S winds 5 to 10 kt. Waves 1 ft. Rain this evening, then
numerous showers with isolated tstms after midnight. Patchy fog.
Vsby 1 to 3 NM...decreasing to 1 NM or less after midnight.
.WED...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Scattered showers. Patchy fog. Vsby 1 to 3 NM.
.WED NIGHT...W winds 15 to 20 kt. Gusts up to 35 kt... diminishing
to 25 kt after midnight. Waves 2 ft.
.THU...W winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
.THU NIGHT...W winds 15 kt with gusts to 25 kt. Waves 1 ft.
.FRI...W winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.FRI NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SAT...W winds 5 to 10 kt...becoming S. Waves 1 ft or less.
.SUN...SW winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft.
A chance of rain.

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

$$

ANZ539-260900-
Chester River to Queenstown MD-
658 PM EST Tue Nov 25 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON...
...GALE WARNING IN EFFECT FROM WEDNESDAY EVENING THROUGH LATE
WEDNESDAY NIGHT...

.TONIGHT...S winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft. Rain
this evening, then numerous showers with isolated tstms after
midnight. Patchy fog after midnight. Vsby 1 to 3 NM...decreasing to
1 NM or less after midnight.
.WED...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Scattered showers. Patchy fog. Vsby 1 NM or less.
.WED NIGHT...W winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
.THU...W winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.THU NIGHT...W winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
.FRI...W winds 20 kt with gusts to 30 kt. Waves 3 ft.
.FRI NIGHT...NW winds 15 to 20 kt with gusts to 25 kt. Waves 2 to
3 ft.
.SAT...W winds 5 to 10 kt...becoming S. Waves 1 ft or less.
.SUN...S winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft.
A chance of rain.

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

$$

ANZ532-260900-
Chesapeake Bay from Sandy Point to North Beach-
658 PM EST Tue Nov 25 2025

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

.TONIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Rain
this evening, then showers with isolated tstms after midnight.
Patchy fog after midnight. Vsby 1 to 3 NM... decreasing to 1 NM or
less after midnight.
.WED...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Numerous showers. Patchy fog. Vsby 1 NM or less.
.WED NIGHT...W winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.THU...W winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.THU NIGHT...W winds 20 to 25 kt. Waves 3 ft.
.FRI...W winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
.FRI NIGHT...NW winds 20 to 25 kt...diminishing to 10 to 15 kt after
midnight. Waves 2 to 3 ft.
.SAT...W winds 5 to 10 kt...becoming S. Waves 1 ft.
.SUN...S winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft.
A chance of rain.

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

$$

ANZ540-260900-
Eastern Bay-
658 PM EST Tue Nov 25 2025

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

.TONIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. Rain
this evening, then showers with isolated tstms after midnight.
Patchy fog after midnight. Vsby 1 to 3 NM... decreasing to 1 NM or
less after midnight.
.WED...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Scattered showers. Patchy fog. Vsby 1 NM or less.
.WED NIGHT...W winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
.THU...W winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.THU NIGHT...W winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.FRI...W winds 15 to 20 kt with gusts to 30 kt. Waves 2 to 3 ft.
.FRI NIGHT...NW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.SAT...W winds 5 to 10 kt...becoming S. Waves 1 ft or less.
.SUN...S winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft.
A chance of rain.

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

$$

ANZ533-260900-
Chesapeake Bay from North Beach to Drum Point-
658 PM EST Tue Nov 25 2025

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

.TONIGHT...S winds 15 kt with gusts to 20 kt. Waves 2 ft. Rain
likely this evening, then showers with isolated tstms after
midnight. Patchy fog after midnight. Vsby 1 to 3 NM... decreasing to
1 NM or less after midnight.
.WED...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Numerous showers. Patchy fog. Vsby 1 NM or less.
.WED NIGHT...W winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.THU...W winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft.
.THU NIGHT...W winds 20 to 25 kt. Waves 3 ft.
.FRI...W winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
.FRI NIGHT...NW winds 20 to 25 kt. Waves 2 to 3 ft.
.SAT...W winds 5 to 10 kt...becoming S. Waves 1 ft.
.SUN...SW winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft.
A chance of rain.

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

$$

ANZ541-260900-
Choptank River to Cambridge MD and the Little Choptank River-
658 PM EST Tue Nov 25 2025

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

.TONIGHT...S winds 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Rain
likely this evening, then showers with isolated tstms after
midnight. Patchy fog after midnight. Vsby 1 to 3 NM...decreasing to
1 NM or less after midnight.
.WED...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Numerous showers. Patchy fog. Vsby 1 NM or less.
.WED NIGHT...W winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.THU...W winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.THU NIGHT...W winds 20 to 25 kt. Waves 3 ft.
.FRI...W winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
.FRI NIGHT...NW winds 20 to 25 kt...diminishing to 10 to 15 kt after
midnight. Waves 2 to 3 ft.
.SAT...W winds 5 to 10 kt...becoming S. Waves 1 ft.
.SUN...S winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft.
A chance of rain.

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

$$

ANZ542-260900-
Patuxent River to Broomes Island MD-
658 PM EST Tue Nov 25 2025

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

.TONIGHT...S winds 10 kt with gusts to 20 kt. Waves 1 ft. Rain
likely this evening, then showers with isolated tstms after
midnight. Patchy fog after midnight with vsby 1 NM or less.
.WED...SW winds 10 kt with gusts to 20 kt. Waves 1 ft. Scattered
showers. Patchy fog. Vsby 1 to 3 NM.
.WED NIGHT...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.THU...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.THU NIGHT...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.FRI...W winds 15 to 20 kt with gusts to 25 kt. Waves 1 ft.
.FRI NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SAT...W winds 5 to 10 kt...becoming S. Waves 1 ft.
.SUN...SW winds 5 kt...becoming NW after midnight. Waves 1 ft. A
chance of rain.

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

$$

ANZ534-260900-
Chesapeake Bay from Drum Point to Smith Point-
658 PM EST Tue Nov 25 2025

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

.TONIGHT...S winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
Scattered showers this evening, then showers with isolated tstms
after midnight. Patchy fog after midnight with vsby 1 NM or less.
.WED...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Scattered showers. Patchy fog. Vsby 1 NM or less.
.WED NIGHT...W winds 15 to 20 kt. Gusts up to 25 kt. Waves 3 ft.
.THU...W winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.THU NIGHT...W winds 20 to 25 kt. Waves 4 ft.
.FRI...W winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft.
.FRI NIGHT...NW winds 20 to 25 kt. Waves 3 ft.
.SAT...NW winds 10 to 15 kt...becoming SW 5 kt in the afternoon and
evening, then becoming S after midnight. Waves 1 to 2 ft.
.SUN...S winds 5 to 10 kt...becoming NW after midnight. Waves 1 to
2 ft. A chance of rain through the night.

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

$$

ANZ543-260900-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
658 PM EST Tue Nov 25 2025

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

.TONIGHT...S winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
Scattered showers this evening, then showers with isolated tstms
after midnight. Patchy fog after midnight with vsby 1 NM or less.
.WED...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Numerous showers. Patchy fog. Vsby 1 NM or less.
.WED NIGHT...SW winds 10 to 15 kt...becoming W 15 to 20 kt in the
late evening and overnight. Gusts up to 25 kt. Waves 2 ft.
.THU...W winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.THU NIGHT...W winds 20 to 25 kt with gusts to 30 kt. Waves 2 ft.
.FRI...W winds 20 to 25 kt with gusts to 30 kt. Waves 2 ft.
.FRI NIGHT...NW winds 20 to 25 kt. Waves 2 ft.
.SAT...NW winds 10 to 15 kt...becoming S 5 to 10 kt. Waves 1 ft or
less.
.SUN...S winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft.
A chance of rain through the night.

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

$$