Coastal Waters Forecast
Issued by NWS Sterling, VA

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FZUS51 KLWX 210831
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
431 AM EDT Fri Jul 21 2017

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.

ANZ500-212300-
431 AM EDT Fri Jul 21 2017

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

Light flow is expected with high pressure to the south through the
weekend. Very warm weather is expected. Scattered thunderstorms are
expected in the afternoon and evening mainly Saturday and Sunday. A
cold front moves through Sunday night.

$$

ANZ535-212300-
Tidal Potomac from Key Bridge to Indian Head-
431 AM EDT Fri Jul 21 2017

.REST OF THE OVERNIGHT...W winds 5 kt. Waves less than 1 ft.
Isolated showers.
.TODAY...W winds 5 kt. Waves less than 1 ft.
.TONIGHT...N winds around 5 kt. Waves 1 ft. Scattered showers and
tstms.
.SAT...SW winds around 5 kt. Waves 1 ft. A chance of showers and
tstms.
.SAT NIGHT...SW winds around 5 kt. Waves 1 ft. Showers and tstms
likely.
.SUN...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.SUN NIGHT...W winds 5 kt. Waves less than 1 ft. A chance of showers
and tstms.
.MON...NW winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.TUE...N winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms in the morning.

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

$$

ANZ536-212300-
Tidal Potomac from Indian Head to Cobb Island-
431 AM EDT Fri Jul 21 2017

.REST OF THE OVERNIGHT...W winds 5 kt. Waves less than 1 ft.
Isolated showers.
.TODAY...W winds 5 kt. Waves less than 1 ft.
.TONIGHT...NW winds around 5 kt. Waves 1 ft. Scattered showers and
tstms.
.SAT...W winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.SAT NIGHT...SW winds around 5 kt. Waves 1 ft. A chance of showers
and tstms.
.SUN...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.SUN NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of
showers and tstms.
.MON...NW winds around 5 kt. Waves 1 ft. A chance of showers and
tstms.
.TUE...N winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms in the morning.

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

$$

ANZ537-212300-
Tidal Potomac from Cobb Island to Smith Point-
431 AM EDT Fri Jul 21 2017

.REST OF THE OVERNIGHT...W winds 10 kt. Waves 1 ft.
.TODAY...NW winds 5 to 10 kt...becoming S late. Waves 1 ft.
.TONIGHT...W winds 5 to 10 kt. Waves 1 ft. Scattered showers and
tstms.
.SAT...SW winds 5 kt. Waves flat. A chance of showers and tstms.
.SAT NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers
and tstms.
.SUN...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers
and tstms.
.MON...W winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.TUE...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms in the morning.

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

$$

ANZ530-212300-
Chesapeake Bay north of Pooles Island-
431 AM EDT Fri Jul 21 2017

.REST OF THE OVERNIGHT...W winds 5 kt. Waves less than 1 ft.
.TODAY...W winds 5 kt. Waves less than 1 ft.
.TONIGHT...NW winds 5 kt. Waves less than 1 ft.
.SAT...E winds 5 kt. Waves flat. A chance of showers and tstms.
.SAT NIGHT...SW winds around 5 kt. Waves flat. Showers and tstms
likely.
.SUN...SW winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
and tstms.
.SUN NIGHT...W winds around 5 kt. Waves 1 ft or less. A chance of
showers and tstms.
.MON...NW winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.TUE...N winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms
in the morning.

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

$$

ANZ531-212300-
Chesapeake Bay from Pooles Island to Sandy Point-
431 AM EDT Fri Jul 21 2017

.REST OF THE OVERNIGHT...W winds 10 kt. Waves 1 ft.
.TODAY...SW winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...N winds around 5 kt. Waves 1 ft or less.
.SAT...E winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.SAT NIGHT...SW winds around 5 kt. Waves 1 ft or less. Showers and
tstms likely.
.SUN...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.SUN NIGHT...W winds 5 kt. Waves less than 1 ft. A chance of showers
and tstms.
.MON...W winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.TUE...N winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms
in the morning.

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

$$

ANZ538-212300-
Patapsco River including Baltimore Harbor-
431 AM EDT Fri Jul 21 2017

.REST OF THE OVERNIGHT...W winds 5 kt. Waves flat.
.TODAY...W winds 5 kt. Waves flat.
.TONIGHT...N winds around 5 kt. Waves flat.
.SAT...E winds 5 kt. Waves flat. A chance of showers and tstms.
.SAT NIGHT...W winds around 5 kt. Waves flat. Showers and tstms
likely.
.SUN...W winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
and tstms.
.SUN NIGHT...W winds 5 kt. Waves less than 1 ft. A chance of showers
and tstms.
.MON...NW winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.TUE...N winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms
in the morning.

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

$$

ANZ539-212300-
Chester River to Queenstown MD-
431 AM EDT Fri Jul 21 2017

.REST OF THE OVERNIGHT...W winds 10 kt. Waves 1 ft.
.TODAY...SW winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...NW winds 5 kt. Waves less than 1 ft.
.SAT...E winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.SAT NIGHT...SW winds 5 kt. Waves flat. Showers and tstms likely.
.SUN...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers
and tstms.
.MON...NW winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
and tstms.
.TUE...N winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms
in the morning.

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

$$

ANZ532-212300-
Chesapeake Bay from Sandy Point to North Beach-
431 AM EDT Fri Jul 21 2017

.REST OF THE OVERNIGHT...W winds 10 kt. Waves 1 ft.
.TODAY...SW winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...NW winds 5 kt. Waves less than 1 ft. Scattered showers
and tstms.
.SAT...E winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.SAT NIGHT...SW winds 5 to 10 kt. Waves 1 ft. Showers and tstms
likely.
.SUN...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers
and tstms.
.MON...NW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.TUE...N winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms
in the morning.

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

$$

ANZ540-212300-
Eastern Bay-
431 AM EDT Fri Jul 21 2017

.REST OF THE OVERNIGHT...W winds 10 kt. Waves 1 ft.
.TODAY...SW winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...NW winds around 5 kt. Waves 1 ft or less.
.SAT...E winds 5 kt. Waves flat. A chance of showers and tstms.
.SAT NIGHT...SW winds 5 to 10 kt. Waves 1 ft or less. Showers and
tstms likely.
.SUN...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.SUN NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of
showers and tstms.
.MON...W winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.TUE...N winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms
in the morning.

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

$$

ANZ533-212300-
Chesapeake Bay from North Beach to Drum Point-
431 AM EDT Fri Jul 21 2017

.REST OF THE OVERNIGHT...W winds 10 kt. Waves 1 ft. Isolated
showers.
.TODAY...N winds 5 to 10 kt...becoming SE late. Waves 1 ft.
.TONIGHT...W winds 5 kt. Waves less than 1 ft. Scattered showers and
tstms.
.SAT...E winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.SAT NIGHT...SW winds 5 to 10 kt. Waves 1 ft. Showers and tstms
likely.
.SUN...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers
and tstms.
.MON...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.TUE...NE winds 5 to 10 kt. Waves 2 ft. A chance of showers and
tstms in the morning.

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

$$

ANZ541-212300-
Choptank River to Cambridge MD and the Little Choptank River-
431 AM EDT Fri Jul 21 2017

.REST OF THE OVERNIGHT...W winds 10 kt. Waves 1 ft. Isolated
showers.
.TODAY...SW winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...NW winds around 5 kt. Waves 1 ft or less. Scattered
showers and tstms.
.SAT...E winds 5 kt. Waves flat. A chance of showers and tstms.
.SAT NIGHT...SW winds 5 to 10 kt. Waves 1 ft. Showers and tstms
likely.
.SUN...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers
and tstms.
.MON...NW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.TUE...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms in the morning.

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

$$

ANZ542-212300-
Patuxent River to Broomes Island MD-
431 AM EDT Fri Jul 21 2017

.REST OF THE OVERNIGHT...W winds 10 kt. Waves 1 ft. Isolated
showers.
.TODAY...NW winds 5 to 10 kt...becoming S late. Waves 1 ft.
.TONIGHT...W winds 5 kt. Waves less than 1 ft. Scattered showers and
tstms.
.SAT...E winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.SAT NIGHT...SW winds 5 kt. Waves less than 1 ft. Showers and tstms
likely.
.SUN...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.SUN NIGHT...SW winds 5 kt. Waves less than 1 ft. A chance of
showers and tstms.
.MON...W winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.TUE...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms in the morning.

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

$$

ANZ534-212300-
Chesapeake Bay from Drum Point to Smith Point-
431 AM EDT Fri Jul 21 2017

.REST OF THE OVERNIGHT...W winds 15 kt. Waves 2 ft. Isolated
showers.
.TODAY...NW winds 5 to 10 kt...becoming S late. Waves 1 to 2 ft.
.TONIGHT...W winds 5 to 10 kt. Waves 1 ft. Scattered showers and
tstms.
.SAT...NW winds 5 kt...becoming S in the afternoon. Waves 1 ft. A
chance of showers and tstms.
.SAT NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers
and tstms.
.SUN...SW winds 10 kt. Waves 1 to 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 to 2 ft. A chance of
showers and tstms.
.MON...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.TUE...NE winds 10 kt. Waves 2 ft. A chance of showers and tstms in
the morning.

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

$$

ANZ543-212300-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
431 AM EDT Fri Jul 21 2017

.REST OF THE OVERNIGHT...SW winds 15 kt. Waves 2 ft. Isolated
showers.
.TODAY...SW winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...W winds 5 to 10 kt. Waves 1 ft. Scattered showers and
tstms.
.SAT...SW winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
and tstms.
.SAT NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers
and tstms.
.SUN...SW winds 10 kt. Waves 1 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers
and tstms.
.MON...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.TUE...NE winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers and
tstms in the morning.

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

$$



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