FZUS51 KLWX 161158
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
758 AM EDT Thu Apr 16 2026

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.

ANZ500-162000-
758 AM EDT Thu Apr 16 2026

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

It will remain very warm and dry through Friday as an area of high
pressure builds across the Mid-Atlantic. A cold front late Saturday
night could bring the next chance for widespread showers. Small
Craft Advisories may be needed Saturday afternoon through Monday
evening.

$$

ANZ535-162000-
Tidal Potomac from Key Bridge to Indian Head-
758 AM EDT Thu Apr 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH THIS
EVENING...

.TODAY...SW winds 5 to 10 kt. Gusts up to 20 kt this afternoon.
Waves 1 ft.
.TONIGHT...W winds 5 to 10 kt. Gusts up to 20 kt until early
morning. Waves 1 ft.
.FRI...NW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SAT...SE winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SUN...NW winds 10 to 15 kt. Waves 1 ft. Showers likely through the
day, then a chance of showers in the evening.
.MON...NW winds 5 to 10 kt. Waves 1 ft.

$$

ANZ536-162000-
Tidal Potomac from Indian Head to Cobb Island-
758 AM EDT Thu Apr 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH THIS
EVENING...

.TODAY...SW winds 5 to 10 kt. Gusts up to 20 kt this afternoon.
Waves 1 ft.
.TONIGHT...W winds 5 to 10 kt. Waves 1 ft. Scattered showers.
.FRI...NW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SAT...SE winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SUN...NW winds 15 to 20 kt...diminishing to 5 to 10 kt after
midnight. Waves 1 to 2 ft. Showers likely through the day, then a
chance of showers in the evening.
.MON...NW winds 10 to 15 kt...becoming N 5 kt after midnight. Waves
1 ft.

$$

ANZ537-162000-
Tidal Potomac from Cobb Island to Smith Point-
758 AM EDT Thu Apr 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH THIS
EVENING...

.TODAY...SW winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft.
.TONIGHT...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 to 2 ft.
Scattered showers.
.FRI...NW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...SE winds 5 kt. Waves less than 1 ft.
.SAT...E winds 5 kt...becoming SE 10 to 15 kt with gusts to 20 kt in
the afternoon. Waves 1 to 2 ft.
.SAT NIGHT...S winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. A
chance of showers.
.SUN...NW winds 15 to 20 kt. Waves 2 ft. Showers likely.
.MON...NW winds 15 to 20 kt. Waves 2 ft.

$$

ANZ530-162000-
Chesapeake Bay north of Pooles Island-
758 AM EDT Thu Apr 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH THIS
EVENING...

.TODAY...SW winds 5 to 10 kt. Gusts up to 20 kt this afternoon.
Waves 1 ft or less.
.TONIGHT...SW winds 5 to 10 kt...becoming W late. Waves 1 ft.
.FRI...NW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 ft or less.
.SAT...SE winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...SE winds 5 to 10 kt. Gusts up to 20 kt in the evening.
Waves 1 ft. A chance of showers.
.SUN...NW winds 10 to 15 kt. Waves 1 ft. Showers likely through the
day, then a chance of showers in the evening.
.MON...NW winds 10 to 15 kt...becoming N 5 kt after midnight. Waves
1 ft.

$$

ANZ531-162000-
Chesapeake Bay from Pooles Island to Sandy Point-
758 AM EDT Thu Apr 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH THIS
EVENING...

.TODAY...S winds 5 to 10 kt with gusts to 20 kt... increasing to
15 kt with gusts to 20 kt late. Waves 1 to 2 ft.
.TONIGHT...SW winds 10 kt with gusts to 20 kt... becoming W late.
Waves 1 to 2 ft.
.FRI...NW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 ft or less.
.SAT...SE winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Waves 1 to 2 ft.
.SAT NIGHT...SE winds 10 to 15 kt. Gusts up to 25 kt in the evening.
Waves 1 to 2 ft. A chance of showers.
.SUN...NW winds 15 to 20 kt. Waves 2 ft. Showers likely through the
day, then a chance of showers in the evening.
.MON...NW winds 15 to 20 kt...becoming N 5 to 10 kt after midnight.
Waves 1 to 2 ft.

$$

ANZ538-162000-
Patapsco River including Baltimore Harbor-
758 AM EDT Thu Apr 16 2026

.TODAY...S winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...SW winds 10 kt...becoming W late. Waves 1 ft.
.FRI...NW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 ft or less.
.SAT...SE winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...SE winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Waves 1 ft. A chance of showers.
.SUN...NW winds 10 to 15 kt. Waves 1 ft. Showers likely through the
day, then a chance of showers in the evening.
.MON...NW winds 10 to 15 kt...becoming N 5 kt after midnight. Waves
1 ft or less.

$$

ANZ539-162000-
Chester River to Queenstown MD-
758 AM EDT Thu Apr 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH THIS
EVENING...

.TODAY...S winds 5 to 10 kt with gusts to 20 kt... increasing to
15 kt with gusts to 20 kt late. Waves 1 to 2 ft.
.TONIGHT...SW winds 10 kt with gusts to 20 kt... becoming W late.
Waves 1 ft.
.FRI...NW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 ft or less.
.SAT...SE winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Waves 1 ft or less.
.SAT NIGHT...S winds 10 to 15 kt. Gusts up to 25 kt in the evening.
Waves 1 to 2 ft. A chance of showers.
.SUN...NW winds 15 to 20 kt. Waves 2 ft. Showers likely through the
day, then a chance of showers in the evening.
.MON...NW winds 10 to 15 kt. Waves 1 to 2 ft.

$$

ANZ532-162000-
Chesapeake Bay from Sandy Point to North Beach-
758 AM EDT Thu Apr 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH THIS
EVENING...

.TODAY...S winds 10 to 15 kt. Gusts up to 20 kt late this morning
and afternoon. Waves 1 to 2 ft.
.TONIGHT...SW winds 10 kt with gusts to 20 kt... becoming W late.
Waves 1 to 2 ft.
.FRI...NW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...NE winds 5 kt. Waves less than 1 ft.
.SAT...E winds 5 kt...becoming SE 10 to 15 kt with gusts to 20 kt in
the afternoon. Waves 1 to 2 ft.
.SAT NIGHT...S winds 10 to 15 kt. Gusts up to 25 kt in the evening.
Waves 2 to 3 ft. A chance of showers.
.SUN...NW winds 15 to 20 kt. Waves 2 ft. Showers likely through the
day, then a chance of showers in the evening.
.MON...NW winds 15 to 20 kt. Waves 1 to 2 ft.

$$

ANZ540-162000-
Eastern Bay-
758 AM EDT Thu Apr 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH THIS
EVENING...

.TODAY...S winds 10 kt. Gusts up to 20 kt late this morning and
afternoon. Waves 1 ft.
.TONIGHT...SW winds 10 kt with gusts to 20 kt... becoming W late.
Waves 1 ft.
.FRI...NW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...N winds 5 kt. Waves less than 1 ft.
.SAT...SE winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Waves 1 ft or less.
.SAT NIGHT...S winds 10 to 15 kt. Gusts up to 25 kt in the evening.
Waves 1 to 2 ft. A chance of showers.
.SUN...NW winds 15 to 20 kt. Waves 2 ft. Showers likely through the
day, then a chance of showers in the evening.
.MON...NW winds 10 to 15 kt. Waves 1 to 2 ft.

$$

ANZ533-162000-
Chesapeake Bay from North Beach to Drum Point-
758 AM EDT Thu Apr 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH THIS
EVENING...

.TODAY...S winds 10 kt. Gusts up to 20 kt late this morning and
afternoon. Waves 1 to 2 ft.
.TONIGHT...SW winds 10 kt with gusts to 20 kt... becoming W late.
Waves 1 to 2 ft.
.FRI...NW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...N winds 5 kt. Waves less than 1 ft.
.SAT...E winds 5 kt...becoming SE 10 to 15 kt with gusts to 20 kt in
the afternoon. Waves 1 to 2 ft.
.SAT NIGHT...S winds 10 to 15 kt. Gusts up to 25 kt in the evening.
Waves 2 to 3 ft. A chance of showers.
.SUN...NW winds 15 to 20 kt. Waves 2 to 3 ft. Showers likely through
the day, then a chance of showers in the evening.
.MON...NW winds 15 to 20 kt. Waves 2 to 3 ft.

$$

ANZ541-162000-
Choptank River to Cambridge MD and the Little Choptank River-
758 AM EDT Thu Apr 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH THIS
EVENING...

.TODAY...S winds 10 kt. Gusts up to 20 kt late this morning and
afternoon. Waves 1 ft.
.TONIGHT...SW winds 10 kt with gusts to 20 kt... becoming W late.
Waves 1 ft.
.FRI...NW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...N winds 5 kt. Waves less than 1 ft.
.SAT...E winds 5 kt...becoming S 10 to 15 kt with gusts to 20 kt in
the afternoon. Waves 1 ft or less.
.SAT NIGHT...S winds 10 to 15 kt. Gusts up to 25 kt in the evening.
Waves 1 to 2 ft. A chance of showers.
.SUN...NW winds 15 to 20 kt. Waves 2 ft. Showers likely through the
day, then a chance of showers in the evening.
.MON...NW winds 15 to 20 kt...becoming N 5 to 10 kt after midnight.
Waves 1 to 2 ft.

$$

ANZ542-162000-
Patuxent River to Broomes Island MD-
758 AM EDT Thu Apr 16 2026

.TODAY...SW winds 10 kt. Waves 1 ft.
.TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. Scattered showers.
.FRI...NW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...NE winds 5 kt. Waves less than 1 ft.
.SAT...SE winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Waves 1 ft.
.SAT NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. A
chance of showers.
.SUN...NW winds 15 to 20 kt...diminishing to 10 kt after midnight.
Waves 1 ft. Showers likely through the day, then a chance of showers
in the evening.
.MON...NW winds 10 to 15 kt. Waves 1 ft.

$$

ANZ534-162000-
Chesapeake Bay from Drum Point to Smith Point-
758 AM EDT Thu Apr 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH LATE
TONIGHT...

.TODAY...S winds 10 to 15 kt. Gusts up to 25 kt this afternoon.
Waves 2 to 3 ft.
.TONIGHT...SW winds 10 to 15 kt with gusts to 25 kt... becoming W
late. Waves 2 to 3 ft. Scattered showers.
.FRI...NW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...SW winds 5 kt. Waves less than 1 ft.
.SAT...E winds 5 kt...becoming SE 10 to 15 kt with gusts to 20 kt in
the afternoon. Waves 1 to 2 ft.
.SAT NIGHT...S winds 10 to 15 kt with gusts to 25 kt. Waves 3 ft. A
chance of showers.
.SUN...NW winds 15 to 20 kt. Waves 3 ft. Showers likely.
.MON...NW winds 15 to 20 kt. Waves 2 to 3 ft.

$$

ANZ543-162000-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
758 AM EDT Thu Apr 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH LATE
TONIGHT...

.TODAY...S winds 10 to 15 kt. Gusts up to 25 kt this afternoon.
Waves 1 to 2 ft.
.TONIGHT...SW winds 10 to 15 kt with gusts to 25 kt... becoming W
5 to 10 kt late. Waves 2 ft. Scattered showers.
.FRI...W winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...W winds 5 kt. Waves less than 1 ft.
.SAT...E winds 5 kt...becoming SE 10 to 15 kt with gusts to 20 kt in
the afternoon. Waves flat...building to 2 ft in the afternoon.
.SAT NIGHT...S winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. A
chance of showers.
.SUN...NW winds 15 to 20 kt. Waves 2 ft. Showers likely.
.MON...NW winds 15 to 20 kt. Waves 1 to 2 ft.

$$