Coastal Waters Forecast
Issued by NWS Sterling, VA

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FZUS51 KLWX 012336
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
736 PM EDT Sun Aug 1 2021

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.

ANZ500-020800-
736 PM EDT Sun Aug 1 2021

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

High pressure returns Monday, followed by low pressure passing by to
 the south and east Tuesday. High pressure will situated itself to
our north through the middle portion of the week. A Small Craft
Advisory may be needed for portions of the marine district during
the middle portion of the week.

$$

ANZ535-020800-
Tidal Potomac from Key Bridge to Indian Head-
736 PM EDT Sun Aug 1 2021

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...E winds 5 kt...becoming NW with gusts to 20 kt after
midnight. Waves 1 ft. Scattered showers and tstms this evening.
.MON...NW winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...NE winds around 5 kt. Waves 1 ft.
.TUE...E winds around 5 kt. Waves 1 ft.
.TUE NIGHT...E winds around 5 kt. Waves 1 ft.
.WED...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.WED NIGHT...E winds around 5 kt. Waves 1 ft. A chance of showers.
.THU...SE winds around 5 kt. Waves 1 ft. A chance of showers. A
chance of tstms through the night.
.FRI...S winds around 5 kt. Waves 1 ft. A chance of showers in the
morning.

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

$$

ANZ536-020800-
Tidal Potomac from Indian Head to Cobb Island-
736 PM EDT Sun Aug 1 2021

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...N winds 5 to 10 kt. Gusts up to 20 kt after midnight.
Waves 1 ft. Isolated tstms this evening. Isolated showers.
.MON...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves
1 ft.
.MON NIGHT...NE winds around 5 kt. Waves 1 ft.
.TUE...E winds around 5 kt. Waves 1 ft. A chance of showers.
.TUE NIGHT...E winds 5 kt. Waves less than 1 ft. A chance of
showers.
.WED...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.WED NIGHT...E winds around 5 kt. Waves 1 ft. A chance of showers.
.THU...S winds around 5 kt. Waves 1 ft. A chance of showers. A
chance of tstms through the night.
.FRI...S winds around 5 kt. Waves 1 ft. A chance of showers in the
morning.

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

$$

ANZ537-020800-
Tidal Potomac from Cobb Island to Smith Point-
736 PM EDT Sun Aug 1 2021

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt late this evening
and overnight. Waves 1 to 2 ft. Numerous showers and scattered tstms
this evening, then isolated showers and tstms after midnight.
.MON...NW winds 10 to 15 kt with gusts to 20 kt... diminishing to
5 kt late. Waves 1 to 2 ft.
.MON NIGHT...NE winds 5 kt. Waves less than 1 ft.
.TUE...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.TUE NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.WED...NE winds 5 to 10 kt. Waves 2 ft. A chance of showers.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 to 2 ft. A chance of
showers.
.THU...S winds 5 kt. Waves less than 1 ft. Showers likely. A chance
of tstms through the night, then a chance of showers after midnight.
.FRI...S winds 5 kt. Waves less than 1 ft. A chance of showers.

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

$$

ANZ530-020800-
Chesapeake Bay north of Pooles Island-
736 PM EDT Sun Aug 1 2021

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...SE winds 10 kt...becoming NE late this evening, then
becoming NW with gusts to 20 kt after midnight. Waves 1 ft. Numerous
showers and scattered tstms this evening, then scattered showers
with isolated tstms after midnight.
.MON...NW winds 5 to 10 kt. Gusts up to 20 kt until late afternoon.
Waves 1 ft.
.MON NIGHT...N winds 5 kt. Waves less than 1 ft.
.TUE...E winds 5 kt. Waves less than 1 ft.
.TUE NIGHT...E winds 5 kt. Waves less than 1 ft.
.WED...NE winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...E winds 5 kt. Waves less than 1 ft.
.THU...S winds around 5 kt. Waves 1 ft or less. A chance of showers.
A chance of tstms through the night.
.FRI...S winds around 5 kt. Waves 1 ft or less. A chance of showers
in the morning.

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

$$

ANZ531-020800-
Chesapeake Bay from Pooles Island to Sandy Point-
736 PM EDT Sun Aug 1 2021

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...SE winds 10 kt...becoming NW with gusts to 20 kt late
this evening and overnight. Waves 1 to 2 ft. Numerous showers and
scattered tstms this evening, then scattered showers with isolated
tstms after midnight.
.MON...NW winds 10 to 15 kt with gusts to 20 kt... becoming N 5 kt
late. Waves 1 to 2 ft.
.MON NIGHT...NE winds 5 kt. Waves less than 1 ft.
.TUE...E winds 5 kt. Waves less than 1 ft.
.TUE NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.WED...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...S winds 5 kt. Waves less than 1 ft. A chance of showers. A
chance of tstms through the night.
.FRI...S winds 5 kt. Waves less than 1 ft. A chance of showers in
the morning.

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

$$

ANZ538-020800-
Patapsco River including Baltimore Harbor-
736 PM EDT Sun Aug 1 2021

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...SE winds 5 kt...becoming NW with gusts to 20 kt late this
evening and overnight. Waves 1 ft or less. Numerous showers and
scattered tstms this evening, then isolated showers after midnight.
.MON...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves
1 ft.
.MON NIGHT...NE winds 5 kt. Waves flat.
.TUE...E winds 5 kt. Waves less than 1 ft.
.TUE NIGHT...E winds 5 kt. Waves less than 1 ft.
.WED...NE winds 5 kt. Waves less than 1 ft.
.WED NIGHT...E winds around 5 kt. Waves 1 ft.
.THU...S winds around 5 kt. Waves 1 ft or less. A chance of showers.
A chance of tstms through the night.
.FRI...S winds around 5 kt. Waves 1 ft or less. A chance of showers
in the morning.

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

$$

ANZ539-020800-
Chester River to Queenstown MD-
736 PM EDT Sun Aug 1 2021

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...SE winds 10 kt...becoming NW with gusts to 20 kt late
this evening and overnight. Waves 1 to 2 ft. Numerous showers and
scattered tstms this evening, then scattered showers with isolated
tstms after midnight.
.MON...NW winds 10 to 15 kt with gusts to 20 kt... becoming N 5 kt
late. Waves 1 to 2 ft.
.MON NIGHT...NE winds 5 kt. Waves less than 1 ft.
.TUE...E winds 5 kt. Waves less than 1 ft.
.TUE NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.WED...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...S winds 5 kt. Waves less than 1 ft. A chance of showers. A
chance of tstms through the night.
.FRI...S winds 5 kt. Waves less than 1 ft. A chance of showers in
the morning.

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

$$

ANZ532-020800-
Chesapeake Bay from Sandy Point to North Beach-
736 PM EDT Sun Aug 1 2021

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...S winds 10 kt...becoming NW with gusts to 20 kt late this
evening and overnight. Waves 1 to 2 ft. Scattered showers. Scattered
tstms, mainly this evening.
.MON...NW winds 10 to 15 kt with gusts to 20 kt... becoming N 5 kt
late. Waves 1 to 2 ft.
.MON NIGHT...NE winds 5 kt. Waves less than 1 ft.
.TUE...E winds 5 kt. Waves less than 1 ft.
.TUE NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.WED...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.THU...S winds 5 kt. Waves less than 1 ft. A chance of showers. A
chance of tstms through the night.
.FRI...S winds 5 kt. Waves less than 1 ft. A chance of showers in
the morning.

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

$$

ANZ540-020800-
Eastern Bay-
736 PM EDT Sun Aug 1 2021

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...S winds 10 kt...becoming NW with gusts to 20 kt late this
evening and overnight. Waves 1 to 2 ft. Scattered showers. Scattered
tstms, mainly this evening.
.MON...NW winds 10 to 15 kt with gusts to 20 kt... becoming N 5 kt
late. Waves 1 to 2 ft.
.MON NIGHT...NE winds 5 kt. Waves less than 1 ft.
.TUE...E winds 5 kt. Waves less than 1 ft.
.TUE NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.WED...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.THU...S winds 5 kt. Waves less than 1 ft. A chance of showers. A
chance of tstms.
.FRI...S winds 5 kt. Waves less than 1 ft. A chance of showers in
the morning.

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

$$

ANZ533-020800-
Chesapeake Bay from North Beach to Drum Point-
736 PM EDT Sun Aug 1 2021

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...NE winds 10 kt...becoming NW with gusts to 20 kt late
this evening and overnight. Waves 1 to 2 ft. Numerous showers and
scattered tstms this evening, then scattered showers with isolated
tstms after midnight.
.MON...NW winds 10 to 15 kt with gusts to 20 kt... becoming N 5 kt
late. Waves 1 to 2 ft.
.MON NIGHT...NE winds 5 kt. Waves less than 1 ft.
.TUE...E winds 5 kt. Waves less than 1 ft. A chance of showers.
.TUE NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.WED...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.THU...S winds 5 kt. Waves less than 1 ft. Showers likely. A chance
of tstms through the night, then a chance of showers after midnight.
.FRI...S winds 5 kt. Waves less than 1 ft. A chance of showers.

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

$$

ANZ541-020800-
Choptank River to Cambridge MD and the Little Choptank River-
736 PM EDT Sun Aug 1 2021

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...N winds 10 to 15 kt. Gusts up to 20 kt after midnight.
Waves 1 to 2 ft. Numerous showers and scattered tstms this evening,
then scattered showers with isolated tstms after midnight.
.MON...NW winds 10 to 15 kt with gusts to 20 kt... becoming N 5 kt
late. Waves 1 to 2 ft.
.MON NIGHT...NE winds 5 kt. Waves less than 1 ft.
.TUE...E winds 5 kt. Waves less than 1 ft. A chance of showers.
.TUE NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.WED...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.THU...S winds 5 kt. Waves less than 1 ft. Showers likely. A chance
of tstms. A chance of showers after midnight.
.FRI...S winds 5 kt. Waves less than 1 ft. A chance of showers.

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

$$

ANZ542-020800-
Patuxent River to Broomes Island MD-
736 PM EDT Sun Aug 1 2021

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt after midnight.
Waves 1 ft. Numerous showers and scattered tstms this evening, then
scattered showers with isolated tstms after midnight.
.MON...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves
1 ft.
.MON NIGHT...NE winds 5 kt. Waves less than 1 ft.
.TUE...E winds 5 kt. Waves less than 1 ft. A chance of showers.
.TUE NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.WED...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.THU...S winds 5 kt. Waves less than 1 ft. Showers likely. A chance
of tstms through the night, then a chance of showers after midnight.
.FRI...S winds 5 kt. Waves less than 1 ft. A chance of showers.

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

$$

ANZ534-020800-
Chesapeake Bay from Drum Point to Smith Point-
736 PM EDT Sun Aug 1 2021

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt late this evening
and overnight. Waves 1 to 2 ft...building to 3 ft late. Numerous
showers and scattered tstms this evening, then isolated showers and
tstms after midnight.
.MON...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft.
.MON NIGHT...NE winds 5 kt. Waves less than 1 ft.
.TUE...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.TUE NIGHT...E winds 10 kt. Waves 2 ft. A chance of showers.
.WED...NE winds 10 kt with gusts to 20 kt. Waves 2 ft. A chance of
showers.
.WED NIGHT...E winds 5 to 10 kt. Waves 2 ft. A chance of showers.
.THU...SE winds 5 to 10 kt...becoming SW after midnight. Waves 1 ft.
Showers likely. A chance of tstms through the night, then a chance
of showers after midnight.
.FRI...SW winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers.

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

$$

ANZ543-020800-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
736 PM EDT Sun Aug 1 2021

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...N winds 10 kt...becoming NW after midnight. Gusts up to
20 kt. Waves 1 to 2 ft. Numerous showers and scattered tstms this
evening, then isolated showers and tstms after midnight.
.MON...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.MON NIGHT...NE winds 5 kt. Waves less than 1 ft.
.TUE...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.TUE NIGHT...E winds 10 kt. Waves 1 ft. A chance of showers.
.WED...NE winds 10 kt. Waves 1 ft. A chance of showers.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.THU...S winds 5 to 10 kt. Waves 1 ft. Showers likely. A chance of
tstms. A chance of showers after midnight.
.FRI...S winds 5 to 10 kt. Waves 1 ft. A chance of showers.

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

$$



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