Coastal Waters Forecast
Issued by NWS Sterling, VA

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FZUS51 KLWX 212032
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
432 PM 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.

ANZ500-220800-
432 PM 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.

$$

ANZ535-220800-
Tidal Potomac from Key Bridge to Indian Head-
432 PM EDT Fri Jul 21 2017

.REST OF THIS AFTERNOON...SW winds 5 kt. Waves less than 1 ft.
Scattered showers with isolated tstms.
.TONIGHT...NW winds around 5 kt. Waves 1 ft. Scattered showers.
.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 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.MON...NW winds 5 kt. Waves less than 1 ft.
.TUE...NE winds 5 kt. Waves less than 1 ft.

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

$$

ANZ536-220800-
Tidal Potomac from Indian Head to Cobb Island-
432 PM EDT Fri Jul 21 2017

.REST OF THIS AFTERNOON...SW winds 5 kt. Waves less than 1 ft.
Scattered showers with isolated tstms.
.TONIGHT...W winds around 5 kt. Waves 1 ft. Scattered showers.
.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. A chance of showers
and tstms.
.SUN...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.SUN NIGHT...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.MON...NW winds around 5 kt. Waves 1 ft.
.TUE...NE winds around 5 kt. Waves 1 ft.

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

$$

ANZ537-220800-
Tidal Potomac from Cobb Island to Smith Point-
432 PM EDT Fri Jul 21 2017

.REST OF THIS AFTERNOON...S winds 10 kt. Waves 1 ft. Isolated
showers and tstms.
.TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. Scattered showers and
tstms.
.SAT...SW 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 with gusts to 20 kt. Waves 1 ft. A
chance of showers and tstms.
.MON...SW winds 5 kt...becoming NW after midnight. Waves 1 ft. A
chance of showers in the morning.
.TUE...NE winds 5 to 10 kt. Waves 1 ft.

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

$$

ANZ530-220800-
Chesapeake Bay north of Pooles Island-
432 PM EDT Fri Jul 21 2017

.REST OF THIS AFTERNOON...SW winds 5 kt. Waves less than 1 ft.
Isolated showers and tstms.
.TONIGHT...W winds 5 kt. Waves less than 1 ft.
.SAT...SE winds 5 kt. Waves flat. A chance of showers and tstms.
.SAT NIGHT...SW winds around 5 kt. Waves 1 ft or less. Showers and
tstms likely.
.SUN...W winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely.
.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...NE winds 5 to 10 kt. Waves 1 ft.

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

$$

ANZ531-220800-
Chesapeake Bay from Pooles Island to Sandy Point-
432 PM EDT Fri Jul 21 2017

.REST OF THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft.
Isolated showers and tstms.
.TONIGHT...W winds 5 kt. Waves less than 1 ft.
.SAT...SE 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. Showers and tstms likely.
.SUN NIGHT...W 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.

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

$$

ANZ538-220800-
Patapsco River including Baltimore Harbor-
432 PM EDT Fri Jul 21 2017

.REST OF THIS AFTERNOON...S winds 5 kt. Waves flat. Isolated showers
and tstms.
.TONIGHT...NW winds around 5 kt. Waves flat.
.SAT...SE 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...W winds 5 to 10 kt. Waves 1 ft or less. Showers and tstms
likely.
.SUN NIGHT...W winds 5 to 10 kt. Waves 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...NE winds 5 to 10 kt. Waves 1 ft.

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

$$

ANZ539-220800-
Chester River to Queenstown MD-
432 PM EDT Fri Jul 21 2017

.REST OF THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft.
Isolated showers and tstms.
.TONIGHT...W winds 5 kt. Waves less than 1 ft.
.SAT...SE winds 5 kt. Waves flat. 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. Showers and tstms likely.
.SUN NIGHT...W 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.

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

$$

ANZ532-220800-
Chesapeake Bay from Sandy Point to North Beach-
432 PM EDT Fri Jul 21 2017

.REST OF THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft.
Isolated showers and tstms.
.TONIGHT...W winds 5 kt. Waves less than 1 ft.
.SAT...SE 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. Showers and tstms likely.
.SUN NIGHT...W 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 in the
morning.
.TUE...NE winds 5 to 10 kt. Waves 1 ft.

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

$$

ANZ540-220800-
Eastern Bay-
432 PM EDT Fri Jul 21 2017

.REST OF THIS AFTERNOON...S winds 5 kt. Waves flat. Isolated showers
and tstms.
.TONIGHT...W winds 5 kt. Waves less than 1 ft.
.SAT...SE 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. Showers and tstms likely.
.SUN NIGHT...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.MON...SW winds 5 kt...becoming NW after midnight. Waves 1 ft. A
chance of showers and tstms.
.TUE...NE winds 5 to 10 kt. Waves 1 ft.

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

$$

ANZ533-220800-
Chesapeake Bay from North Beach to Drum Point-
432 PM EDT Fri Jul 21 2017

.REST OF THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft.
Isolated showers and tstms.
.TONIGHT...W winds 5 to 10 kt. Waves 1 ft. Scattered showers and
tstms.
.SAT...SE 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...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.MON...SW winds 5 kt...becoming NW after midnight. Waves 1 ft. A
chance of showers in the morning.
.TUE...NE winds 5 to 10 kt. Waves 1 to 2 ft.

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

$$

ANZ541-220800-
Choptank River to Cambridge MD and the Little Choptank River-
432 PM EDT Fri Jul 21 2017

.REST OF THIS AFTERNOON...SW winds 5 kt. Waves flat. Isolated
showers and tstms.
.TONIGHT...SW winds 5 kt. Waves less than 1 ft. Scattered showers
and tstms.
.SAT...SE 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...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.MON...SW winds 5 kt...becoming NW after midnight. Waves 1 ft. A
chance of showers in the morning.
.TUE...NE winds 5 to 10 kt. Waves 1 ft.

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

$$

ANZ542-220800-
Patuxent River to Broomes Island MD-
432 PM EDT Fri Jul 21 2017

.REST OF THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft.
Isolated showers and tstms.
.TONIGHT...SW winds 5 kt. Waves less than 1 ft. Scattered showers
and tstms.
.SAT...SW 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 kt. Waves less than 1 ft. A chance of showers in
the morning.
.TUE...NE winds 5 kt. Waves less than 1 ft.

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

$$

ANZ534-220800-
Chesapeake Bay from Drum Point to Smith Point-
432 PM EDT Fri Jul 21 2017

.REST OF THIS AFTERNOON...S winds 10 kt. Waves 1 ft. Isolated
showers and tstms.
.TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. Scattered showers and
tstms.
.SAT...S winds 5 to 10 kt. Waves 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 10 kt. Waves 2 ft. A chance of showers and tstms.
.SUN NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A
chance of showers and tstms.
.MON...SW winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft.
A chance of showers in the morning.
.TUE...NE winds 5 to 10 kt. Waves 1 to 2 ft.

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

$$

ANZ543-220800-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
432 PM EDT Fri Jul 21 2017

.REST OF THIS AFTERNOON...SW winds 10 kt. Waves 1 ft. Isolated
showers and tstms.
.TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. Scattered showers and
tstms.
.SAT...SW winds 5 to 10 kt. Waves 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 10 kt. Waves 1 ft. A chance of showers and tstms.
.SUN NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft. A chance of showers and tstms.
.MON...SW winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft.
A chance of showers in the morning.
.TUE...NE winds 5 to 10 kt. Waves 1 ft.

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

$$




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