Coastal Waters Forecast
Issued by NWS Sterling, VA

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FZUS51 KLWX 200558
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
158 AM EDT Sat Apr 20 2024

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.

ANZ500-202000-
158 AM EDT Sat Apr 20 2024

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

A cold front will pass through the region tonight into Saturday
morning. High pressure gradually pushes in from the west over the
weekend while low pressure passes well to the south. The high will
move overhead Monday and Tuesday. Small Craft Advisories may be
needed Tuesday.

$$

ANZ535-202000-
Tidal Potomac from Key Bridge to Indian Head-
158 AM EDT Sat Apr 20 2024

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

.OVERNIGHT...SW winds 5 kt. Waves less than 1 ft. Scattered showers.
.SAT...NW winds 5 to 10 kt. Gusts up to 25 kt. Waves 1 ft. Scattered
showers.
.SAT NIGHT...NW winds 10 to 15 kt. Gusts up to 25 kt. Waves 1 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...NW winds 5 kt. Waves less than 1 ft.
.MON...NW winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 5 to 10 kt...increasing to 10 to 15 kt. Waves 1 to
2 ft.
.WED...SW winds 10 to 15 kt...becoming NW. Waves 1 ft. A chance of
showers.

$$

ANZ536-202000-
Tidal Potomac from Indian Head to Cobb Island-
158 AM EDT Sat Apr 20 2024

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

.OVERNIGHT...S winds 5 kt. Waves less than 1 ft. Scattered showers.
.SAT...NW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Waves 1 ft. Scattered showers.
.SAT NIGHT...NW winds 10 to 15 kt with gusts to 20 kt...becoming N
5 to 10 kt late. Waves 1 ft.
.SUN...NW winds 5 kt. Waves less than 1 ft.
.SUN NIGHT...NW winds 5 kt. Waves less than 1 ft.
.MON...N winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...NE winds 5 to 10 kt...becoming W after midnight. Waves
1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft.
.WED...W winds 10 to 15 kt...becoming NW. Waves 1 to 2 ft. A chance
of showers through the night.

$$

ANZ537-202000-
Tidal Potomac from Cobb Island to Smith Point-
158 AM EDT Sat Apr 20 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...

.OVERNIGHT...S winds 5 kt. Waves less than 1 ft. Scattered showers.
Vsby 1 to 3 NM.
.SAT...NW winds 5 to 10 kt. Waves 1 to 2 ft. Scattered showers. Vsby
1 to 3 NM.
.SAT NIGHT...NW winds 10 to 15 kt...becoming N 5 to 10 kt late.
Gusts up to 20 kt. Waves 1 to 2 ft.
.SUN...N winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...W winds 5 to 10 kt. Waves 1 ft.
.MON...N winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...E winds 5 to 10 kt...becoming SW after midnight. Waves
1 ft.
.TUE...S winds 5 kt...increasing to 10 to 15 kt. Waves 1 to 2 ft.
.WED...SW winds 10 to 15 kt...becoming NW. Waves 2 ft.

$$

ANZ530-202000-
Chesapeake Bay north of Pooles Island-
158 AM EDT Sat Apr 20 2024

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

.OVERNIGHT...SW winds 5 kt. Waves less than 1 ft. Scattered showers.
.SAT...NW winds 10 to 15 kt. Gusts up to 25 kt in the afternoon.
Waves 1 to 2 ft. Scattered showers.
.SAT NIGHT...NW winds 15 to 20 kt with gusts to 25 kt...diminishing
to 5 to 10 kt late. Waves 1 to 2 ft.
.SUN...W winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft.
.WED...SW winds 10 to 15 kt...becoming NW. Waves 1 to 2 ft. A chance
of showers.

$$

ANZ531-202000-
Chesapeake Bay from Pooles Island to Sandy Point-
158 AM EDT Sat Apr 20 2024

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

.OVERNIGHT...SW winds 5 kt. Waves less than 1 ft. Scattered showers.
.SAT...NW winds 10 to 15 kt. Gusts up to 20 kt... increasing to
25 kt late. Waves 2 ft. Scattered showers.
.SAT NIGHT...NW winds 15 to 20 kt with gusts to 25 kt...becoming N
5 to 10 kt late. Waves 3 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 10 kt. Waves 1 ft.
.MON NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft...building to 3 ft.
.WED...SW winds 10 to 15 kt...becoming NW after midnight. Waves
2 ft. A chance of showers.

$$

ANZ538-202000-
Patapsco River including Baltimore Harbor-
158 AM EDT Sat Apr 20 2024

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

.OVERNIGHT...SW winds around 5 kt. Waves flat. Scattered showers.
.SAT...NW winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
Scattered showers.
.SAT NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 ft or less.
.SUN NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt...becoming 15 kt after midnight. Waves
1 to 2 ft.
.WED...SW winds 10 to 15 kt...becoming NW. Waves 1 to 2 ft. A chance
of showers.

$$

ANZ539-202000-
Chester River to Queenstown MD-
158 AM EDT Sat Apr 20 2024

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

.OVERNIGHT...SW winds 5 kt. Waves less than 1 ft. Scattered showers.
.SAT...NW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Waves 2 ft. Scattered showers.
.SAT NIGHT...NW winds 15 to 20 kt with gusts to 25 kt...becoming N
10 kt late. Waves 3 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.MON...N winds 10 kt. Waves 1 ft.
.MON NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft.
.WED...SW winds 15 kt...becoming NW. Waves 2 to 3 ft. A chance of
showers.

$$

ANZ532-202000-
Chesapeake Bay from Sandy Point to North Beach-
158 AM EDT Sat Apr 20 2024

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

.OVERNIGHT...SW winds 5 to 10 kt. Waves 1 to 2 ft. Scattered
showers.
.SAT...NW winds 5 to 10 kt with gusts to 20 kt. Waves 2 ft.
Scattered showers. Vsby 1 to 3 NM.
.SAT NIGHT...NW winds 15 to 20 kt with gusts to 25 kt...becoming N
10 kt late. Waves 3 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.MON...N winds 10 kt. Waves 1 ft.
.MON NIGHT...NE winds 5 to 10 kt...becoming SE after midnight. Waves
1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft...building to 3 ft.
.WED...SW winds 15 kt...becoming NW. Waves 2 to 3 ft. A chance of
showers.

$$

ANZ540-202000-
Eastern Bay-
158 AM EDT Sat Apr 20 2024

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

.OVERNIGHT...SW winds 5 kt. Waves less than 1 ft. Scattered showers.
.SAT...NW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Scattered showers.
.SAT NIGHT...NW winds 10 to 15 kt...becoming N after midnight. Gusts
up to 25 kt until early morning. Waves 2 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.MON...N winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft.
.WED...SW winds 15 kt...becoming NW. Waves 2 ft. A chance of
showers.

$$

ANZ533-202000-
Chesapeake Bay from North Beach to Drum Point-
158 AM EDT Sat Apr 20 2024

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

.OVERNIGHT...S winds 5 to 10 kt. Waves 1 to 2 ft. Scattered showers.
.SAT...NW winds 5 to 10 kt. Waves 2 ft. Scattered showers. Vsby 1 to
3 NM.
.SAT NIGHT...W winds 10 kt...becoming N 15 to 20 kt in the late
evening and early morning, then diminishing to 10 kt late. Gusts up
to 25 kt until early morning. Waves 3 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 to 2 ft.
.SUN NIGHT...W winds 5 to 10 kt. Waves 1 ft.
.MON...N winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft...building to 3 ft.
.WED...SW winds 15 kt...becoming NW. Waves 2 ft. A chance of showers
through the night.

$$

ANZ541-202000-
Choptank River to Cambridge MD and the Little Choptank River-
158 AM EDT Sat Apr 20 2024

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

.OVERNIGHT...S winds 5 to 10 kt. Waves 1 ft. Scattered showers.
.SAT...NW winds 5 to 10 kt. Waves 1 to 2 ft. Scattered showers. Vsby
1 to 3 NM.
.SAT NIGHT...NW winds 5 to 10 kt...becoming N 15 to 20 kt in the
late evening and early morning, then diminishing to 10 kt late.
Waves 2 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.MON...N winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft.
.WED...SW winds 15 kt...becoming NW. Waves 2 ft. A chance of showers
through the night.

$$

ANZ542-202000-
Patuxent River to Broomes Island MD-
158 AM EDT Sat Apr 20 2024

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

.OVERNIGHT...S winds 5 kt. Waves less than 1 ft. Scattered showers.
.SAT...NW winds 5 to 10 kt. Waves 1 ft. Scattered showers.
.SAT NIGHT...NW winds 5 to 10 kt. Gusts up to 25 kt in the late
evening and early morning. Waves 1 ft.
.SUN...NW winds 5 kt. Waves less than 1 ft.
.SUN NIGHT...W winds 5 to 10 kt. Waves 1 ft.
.MON...N winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...S winds 5 kt. Waves less than 1 ft.
.TUE...S winds 5 to 10 kt...increasing to 15 kt. Waves 1 ft.
.WED...SW winds 15 kt...becoming NW. Waves 1 ft.

$$

ANZ534-202000-
Chesapeake Bay from Drum Point to Smith Point-
158 AM EDT Sat Apr 20 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...

.OVERNIGHT...S winds 5 to 10 kt. Waves 1 to 2 ft. Scattered showers.
Vsby 1 to 3 NM.
.SAT...NW winds 5 to 10 kt. Waves 2 ft. Scattered showers. Patchy
fog. Vsby 1 to 3 NM.
.SAT NIGHT...SW winds 5 to 10 kt...becoming NW 15 to 20 kt with
gusts to 25 kt in the late evening and early morning, then becoming
N 10 to 15 kt with gusts to 20 kt late. Waves 2 to 3 ft.
.SUN...N winds 10 to 15 kt. Waves 1 to 2 ft.
.SUN NIGHT...W winds 5 to 10 kt. Waves 1 ft.
.MON...N winds 10 to 15 kt. Waves 2 ft.
.MON NIGHT...NE winds 5 to 10 kt...becoming S after midnight. Waves
1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft...building to 3 ft.
.WED...SW winds 15 kt...becoming NW. Waves 3 ft.

$$

ANZ543-202000-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
158 AM EDT Sat Apr 20 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...

.OVERNIGHT...S winds 5 kt. Waves less than 1 ft. Scattered showers.
Vsby 1 to 3 NM.
.SAT...W winds 5 to 10 kt...becoming NW in the afternoon. Waves
1 ft. Scattered showers. Patchy fog. Vsby 1 to 3 NM.
.SAT NIGHT...W winds 10 to 15 kt...becoming N after midnight. Gusts
up to 20 kt. Waves 1 to 2 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...W winds 5 to 10 kt. Waves 1 ft.
.MON...N winds 10 kt. Waves 1 ft.
.MON NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.TUE...S winds 10 to 15 kt. Waves 1 to 2 ft.
.WED...SW winds 15 kt...becoming NW. Waves 2 ft.

$$
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