HomeForecastsVirginia ForecastsNanjemoy, MD Coastal Forecast

Nanjemoy, MD Coastal Forecast

FZUS51 KLWX 291135
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Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
735 AM EDT Thu May 29 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.

ANZ500-292000-
735 AM EDT Thu May 29 2025

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

A series of disturbances and fronts will continue to cross the area
through the weekend, leading to periods of showers and
thunderstorms. High pressure builds in Sunday into early next week.
Additional Small Craft Advisories may be needed for portions of the
waters Friday night into Saturday night.

$$

ANZ535-292000-
Tidal Potomac from Key Bridge to Indian Head-
735 AM EDT Thu May 29 2025

.TODAY...W winds around 5 kt. Waves 1 ft. Patchy fog this morning.
Isolated showers this afternoon. Vsby 1 to 3 NM this morning.
.TONIGHT...S winds around 5 kt. Waves 1 ft or less. Scattered
showers. Patchy fog. Vsby 1 to 3 NM.
.FRI...W winds around 5 kt. Waves 1 ft. Showers. Patchy fog. Vsby
1 to 3 NM.
.FRI NIGHT...W winds 5 kt. Waves less than 1 ft. Showers likely with
a chance of tstms.
.SAT...W winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. Showers
likely with a chance of tstms.
.SAT NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.SUN...NW winds 5 to 10 kt...becoming light. Waves 1 ft or less.
.MON...NW winds around 5 kt. Waves 1 ft or less.

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

$$

ANZ536-292000-
Tidal Potomac from Indian Head to Cobb Island-
735 AM EDT Thu May 29 2025

.TODAY...SW winds around 5 kt. Waves 1 ft or less. Patchy fog this
morning. Isolated showers this afternoon. Vsby 1 to 3 NM this
morning.
.TONIGHT...S winds around 5 kt. Waves 1 ft. Scattered showers.
Patchy fog. Vsby 1 NM or less.
.FRI...SW winds around 5 kt. Waves 1 ft. A chance of showers. Vsby
1 NM or less.
.FRI NIGHT...W winds 5 to 10 kt. Waves 1 ft. Showers likely with a
chance of tstms.
.SAT...W winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms.
.SAT NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.SUN...NW winds around 5 kt. Waves 1 ft.
.MON...NW winds around 5 kt. Waves 1 ft or less.

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

$$

ANZ537-292000-
Tidal Potomac from Cobb Island to Smith Point-
735 AM EDT Thu May 29 2025

.TODAY...NW winds 5 to 10 kt...becoming SE late. Waves 1 ft or less.
Patchy fog this morning. Isolated showers this afternoon. Vsby 1 to
3 NM this morning.
.TONIGHT...S winds 5 kt. Waves flat. Scattered showers. Vsby 1 NM or
less.
.FRI...S winds 5 to 10 kt. Waves 1 ft or less. Showers. Vsby 1 NM or
less.
.FRI NIGHT...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 to
2 ft. Showers likely with a chance of tstms.
.SAT...W winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft. Showers
likely.
.SAT NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.SUN...W winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 5 kt. Waves less than 1 ft.

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

$$

ANZ530-292000-
Chesapeake Bay north of Pooles Island-
735 AM EDT Thu May 29 2025

.TODAY...W winds 5 kt. Waves less than 1 ft. Patchy fog this morning
with vsby 1 to 3 NM.
.TONIGHT...SW winds around 5 kt. Waves flat. Scattered showers. Vsby
1 to 3 NM.
.FRI...W winds around 5 kt. Waves 1 ft or less. Showers likely.
Patchy fog. Vsby 1 to 3 NM.
.FRI NIGHT...W winds 5 to 10 kt. Waves 1 ft. Showers likely with a
chance of tstms.
.SAT...W winds 5 to 10 kt. Waves 1 ft. Showers with a chance of
tstms.
.SAT NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.SUN...W winds 5 to 10 kt. Waves 1 ft or less.
.MON...NW winds around 5 kt. Waves 1 ft or less.

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

$$

ANZ531-292000-
Chesapeake Bay from Pooles Island to Sandy Point-
735 AM EDT Thu May 29 2025

.TODAY...NW winds 5 to 10 kt...becoming S this afternoon. Waves 1 ft
or less. Patchy fog this morning with vsby 1 to 3 NM.
.TONIGHT...S winds around 5 kt. Waves flat. Scattered showers.
Patchy fog. Vsby 1 to 3 NM.
.FRI...SW winds around 5 kt. Waves 1 ft or less. Showers likely.
Patchy fog. Vsby 1 to 3 NM.
.FRI NIGHT...SW winds 5 to 10 kt...becoming NW after midnight. Waves
1 ft. Showers likely with a chance of tstms.
.SAT...W winds 10 kt. Waves 1 ft. Showers with a chance of tstms.
.SAT NIGHT...NW winds 10 kt. Waves 1 ft.
.SUN...W winds 5 to 10 kt. Waves 1 ft or less.
.MON...W winds 5 kt. Waves less than 1 ft.

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

$$

ANZ538-292000-
Patapsco River including Baltimore Harbor-
735 AM EDT Thu May 29 2025

.TODAY...W winds 5 kt. Waves flat. Patchy fog this morning with vsby
1 to 3 NM.
.TONIGHT...S winds around 5 kt. Waves flat. Scattered showers.
Patchy fog. Vsby 1 to 3 NM.
.FRI...SE winds around 5 kt. Waves flat. Showers likely. Patchy fog.
Vsby 1 to 3 NM.
.FRI NIGHT...NE winds 5 kt...becoming NW after midnight. Waves 1 ft.
Showers likely with a chance of tstms.
.SAT...W winds 5 to 10 kt. Waves 1 ft. Showers with a chance of
tstms.
.SAT NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.SUN...W winds 5 to 10 kt. Waves 1 ft or less.
.MON...W winds around 5 kt. Waves flat.

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

$$

ANZ539-292000-
Chester River to Queenstown MD-
735 AM EDT Thu May 29 2025

.TODAY...NW winds 5 to 10 kt...becoming SW this afternoon. Waves
1 ft or less. Patchy fog this morning with vsby 1 to 3 NM.
.TONIGHT...S winds 5 kt. Waves flat. Scattered showers. Vsby 1 to
3 NM.
.FRI...SW winds 5 kt. Waves less than 1 ft. Showers likely. Patchy
fog. Vsby 1 to 3 NM.
.FRI NIGHT...W winds 5 to 10 kt. Waves 1 ft. Showers likely with a
chance of tstms.
.SAT...W winds 10 kt. Waves 1 ft. Showers with a chance of tstms.
.SAT NIGHT...NW winds 10 kt. Waves 1 to 2 ft.
.SUN...W winds 5 to 10 kt. Waves 1 ft or less.
.MON...W winds around 5 kt. Waves 1 ft or less.

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

$$

ANZ532-292000-
Chesapeake Bay from Sandy Point to North Beach-
735 AM EDT Thu May 29 2025

.TODAY...NW winds 5 to 10 kt...becoming S this afternoon. Waves 1 ft
or less. Patchy fog this morning with vsby 1 to 3 NM.
.TONIGHT...S winds 5 kt. Waves less than 1 ft. Scattered showers.
Patchy fog. Vsby 1 to 3 NM.
.FRI...SW winds 5 kt. Waves less than 1 ft. Showers. Patchy fog.
Vsby 1 to 3 NM.
.FRI NIGHT...W winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Showers likely with a chance of tstms.
.SAT...W winds 10 kt with gusts to 20 kt. Waves 1 ft. Showers with a
chance of tstms.
.SAT NIGHT...NW winds 10 kt. Waves 1 ft.
.SUN...W winds 5 to 10 kt. Waves 1 ft.
.MON...W winds 5 kt. Waves less than 1 ft.

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

$$

ANZ540-292000-
Eastern Bay-
735 AM EDT Thu May 29 2025

.TODAY...NW winds 5 to 10 kt...becoming SW this afternoon. Waves
1 ft or less. Patchy fog this morning with vsby 1 to 3 NM.
.TONIGHT...S winds 5 kt. Waves flat. Scattered showers. Vsby 1 to
3 NM.
.FRI...SW winds 5 kt. Waves less than 1 ft. Showers. Patchy fog.
Vsby 1 to 3 NM.
.FRI NIGHT...W winds 5 to 10 kt. Waves 1 ft. Showers likely with a
chance of tstms.
.SAT...W winds 10 kt. Waves 1 ft. Showers with a chance of tstms.
.SAT NIGHT...NW winds 10 kt. Waves 1 ft.
.SUN...W winds 5 to 10 kt. Waves 1 ft or less.
.MON...W winds 5 kt. Waves less than 1 ft.

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

$$

ANZ533-292000-
Chesapeake Bay from North Beach to Drum Point-
735 AM EDT Thu May 29 2025

.TODAY...NW winds 5 to 10 kt...becoming SE this afternoon. Waves
1 ft or less. Patchy fog this morning with vsby 1 to 3 NM.
.TONIGHT...S winds 5 kt. Waves less than 1 ft. Scattered showers.
Vsby 1 to 3 NM.
.FRI...S winds 5 to 10 kt. Waves 1 ft or less. Showers. Vsby 1 to
3 NM.
.FRI NIGHT...W winds 5 to 10 kt with gusts to 20 kt. Waves 1 to
2 ft. Showers likely with a chance of tstms.
.SAT...W winds 10 kt with gusts to 20 kt. Waves 2 ft. Showers likely
with a chance of tstms.
.SAT NIGHT...W winds 10 kt. Waves 1 to 2 ft.
.SUN...W winds 5 to 10 kt. Waves 1 ft.
.MON...N winds 5 to 10 kt...becoming SW. Waves 1 ft or less.

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

$$

ANZ541-292000-
Choptank River to Cambridge MD and the Little Choptank River-
735 AM EDT Thu May 29 2025

.TODAY...NW winds 5 to 10 kt...becoming SW this afternoon. Waves
1 ft or less. Patchy fog this morning with vsby 1 to 3 NM.
.TONIGHT...S winds 5 kt. Waves flat. Scattered showers.
.FRI...SW winds 5 kt. Waves less than 1 ft. Showers. Vsby 1 to 3 NM.
.FRI NIGHT...W winds 5 to 10 kt with gusts to 20 kt. Waves 1 to
2 ft. Showers with a chance of tstms.
.SAT...W winds 10 kt with gusts to 20 kt. Waves 2 ft. Showers likely
with a chance of tstms.
.SAT NIGHT...NW winds 10 kt. Waves 1 ft.
.SUN...W winds 5 to 10 kt. Waves 1 ft.
.MON...W winds 5 kt. Waves less than 1 ft.

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

$$

ANZ542-292000-
Patuxent River to Broomes Island MD-
735 AM EDT Thu May 29 2025

.TODAY...W winds 5 kt. Waves less than 1 ft. Patchy fog this morning
with vsby 1 to 3 NM.
.TONIGHT...S winds around 5 kt. Waves 1 ft. Scattered showers.
Patchy fog. Vsby 1 NM or less.
.FRI...S winds around 5 kt. Waves 1 ft. Showers. Vsby 1 to 3 NM.
.FRI NIGHT...W winds 5 to 10 kt. Waves 1 ft. Showers likely with a
chance of tstms.
.SAT...W winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms.
.SAT NIGHT...W winds 5 to 10 kt. Waves 1 ft.
.SUN...W winds 5 to 10 kt. Waves 1 ft.
.MON...N winds around 5 kt. Waves 1 ft.

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

$$

ANZ534-292000-
Chesapeake Bay from Drum Point to Smith Point-
735 AM EDT Thu May 29 2025

.TODAY...NW winds 5 to 10 kt...becoming S late. Waves 1 to 2 ft...
subsiding to flat late. Patchy fog this morning with vsby 1 to 3 NM.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft. Scattered showers. Vsby
1 NM or less.
.FRI...S winds 5 to 10 kt. Waves 1 ft. Showers. Vsby 1 to 3 NM.
.FRI NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt. Waves 2 ft.
Showers with a chance of tstms.
.SAT...W winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Showers
likely.
.SAT NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SUN...W winds 10 to 15 kt...becoming S 5 to 10 kt in the evening,
then becoming W after midnight. Waves 1 to 2 ft.
.MON...N winds 5 to 10 kt...becoming S. Waves 1 ft. A chance of
showers in the morning.

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

$$

ANZ543-292000-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
735 AM EDT Thu May 29 2025

.TODAY...NW winds 5 to 10 kt...becoming S late. Waves 1 ft or less.
Patchy fog this morning with vsby 1 to 3 NM.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft. Scattered showers. Vsby
1 NM or less.
.FRI...SW winds 5 to 10 kt. Waves 1 ft. Showers. Vsby 1 to 3 NM.
.FRI NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt. Waves 1 to
2 ft. Showers with a chance of tstms.
.SAT...W winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Showers likely.
.SAT NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SUN...W winds 10 to 15 kt...becoming S 5 to 10 kt in the evening,
then becoming NW after midnight. Waves 1 ft.
.MON...NW winds 5 to 10 kt...becoming SW. Waves 1 ft. A chance of
showers in the morning.

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

$$



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