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National Weather Service Marine Forecast FZUS51 KLWX

FZUS51 KLWX 220532
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
132 AM EDT Sun Jul 22 2018

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. 

ANZ500-222000-
132 AM EDT Sun Jul 22 2018

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

An area of low pressure will move near the Delmarva coastline
overnight before another low approaches from the west on Sunday and
stalls into early next week. Small Craft Advisory conditions are
possible Monday through Wednesday.



ANZ535-222000-
Tidal Potomac from Key Bridge to Indian Head-
132 AM EDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT EARLY THIS
MORNING...

Overnight
W winds 5 kt. Waves less than 1 ft. Rain. Vsby 1 NM or
less.

SUN
SE winds 5 kt. Waves less than 1 ft. Showers likely with a
chance of tstms.

SUN NIGHT
SE winds 5 kt. Waves less than 1 ft. Showers likely
with a chance of tstms. Patchy fog. Vsby 1 to 3 NM.

MON
SE winds 5 to 10 kt. Waves 1 ft. Showers with a chance of
tstms.

MON NIGHT
SE winds 5 to 10 kt. Waves 1 ft. Showers likely.

TUE
SE winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely.

TUE NIGHT
SE winds 5 to 10 kt. Waves 1 ft. Showers and tstms
likely.

WED
S winds 5 kt. Waves less than 1 ft. A chance of showers in
the morning, then showers and tstms likely.

THU
SW winds 5 kt. Waves less than 1 ft. Showers and tstms
likely, then a chance of showers after midnight. 

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



ANZ536-222000-
Tidal Potomac from Indian Head to Cobb Island-
132 AM EDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT EARLY THIS
MORNING...

Overnight
SW winds 5 to 10 kt. Waves 1 ft. Rain likely. Patchy
fog. Vsby 1 NM or less.

SUN
SE winds around 5 kt. Waves 1 ft. Showers likely with a
chance of tstms. Patchy fog. Vsby 1 to 3 NM.

SUN NIGHT
SE winds 5 kt. Waves less than 1 ft. Showers likely
with a chance of tstms. Patchy fog. Vsby 1 to 3 NM.

MON
SE winds 5 to 10 kt. Waves 1 ft. Showers with a chance of
tstms.

MON NIGHT
SE winds 5 to 10 kt. Waves 1 ft. Showers likely.

TUE
SE winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely.

TUE NIGHT
SE winds 5 to 10 kt. Waves 1 ft. Showers and tstms
likely.

WED
S winds 5 to 10 kt. Waves 1 ft. A chance of showers in the
morning, then showers and tstms likely.

THU
SW winds 5 kt. Waves less than 1 ft. Showers and tstms
likely, then a chance of showers after midnight. 

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



ANZ537-222000-
Tidal Potomac from Cobb Island to Smith Point-
132 AM EDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE
TONIGHT...

Overnight
SW winds 10 to 15 kt. Gusts up to 25 kt. Waves 2 ft. A
chance of showers. Patchy fog. Vsby 1 to 3 NM.

SUN
SE winds 10 to 15 kt with gusts to 25 kt. Waves 2 to 3 ft.
Showers likely with a chance of tstms. Patchy fog. Vsby 1 to 3 NM.

SUN NIGHT
SE winds 10 to 15 kt with gusts to 25 kt. Waves 3 ft.
Showers likely with a chance of tstms. Patchy fog. Vsby 1 to 3 NM.

MON
SE winds 10 to 15 kt with gusts to 25 kt. Waves 3 ft. Showers
with a chance of tstms.

MON NIGHT
SE winds 10 to 15 kt with gusts to 25 kt. Waves 3 ft.
Showers likely.

TUE
SE winds 10 to 15 kt with gusts to 20 kt. Waves 3 ft. Showers
and tstms likely.

TUE NIGHT
SE winds 10 to 15 kt with gusts to 20 kt. Waves 2 to
3 ft. Showers and tstms likely.

WED
S winds 5 to 10 kt. Waves 2 ft. A chance of showers in the
morning, then showers and tstms likely.

THU
SW winds 5 to 10 kt. Waves 1 ft. Tstms likely. Showers
likely. 

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



ANZ530-222000-
Chesapeake Bay north of Pooles Island-
132 AM EDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...

Overnight
SW winds 10 kt with gusts to 20 kt. Waves 1 ft. Rain.
Patchy fog. Vsby 1 NM or less.

SUN
SE winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms.

SUN NIGHT
SE winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Showers likely with a chance of tstms. Patchy fog. Vsby 1 to 3 NM.

MON
SE winds 10 to 15 kt. Waves 1 ft. Showers with a chance of
tstms.

MON NIGHT
SE winds 10 kt. Waves 1 ft. Showers likely.

TUE
SE winds 10 kt. Waves 1 ft. Showers and tstms likely.

TUE NIGHT
SE winds 5 to 10 kt. Waves 1 ft. Showers and tstms
likely.

WED
S winds 5 to 10 kt. Waves 1 ft. A chance of showers in the
morning, then showers and tstms likely.

THU
SW winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely,
then a chance of showers after midnight. 

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



ANZ531-222000-
Chesapeake Bay from Pooles Island to Sandy Point-
132 AM EDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...

Overnight
W winds 15 kt with gusts to 25 kt. Waves 2 ft. Rain.
Patchy fog. Vsby 1 NM or less.

SUN
SE winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms.

SUN NIGHT
SE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Showers likely with a chance of tstms. Patchy fog. Vsby 1 to 3 NM.

MON
SE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Showers
with a chance of tstms.

MON NIGHT
SE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Showers likely.

TUE
SE winds 10 to 15 kt. Waves 2 ft. Showers and tstms likely.

TUE NIGHT
SE winds 10 to 15 kt. Waves 1 to 2 ft. Showers and
tstms likely.

WED
S winds 5 to 10 kt. Waves 1 ft. A chance of showers in the
morning, then showers and tstms likely.

THU
SW winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely,
then a chance of showers after midnight. 

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



ANZ538-222000-
Patapsco River including Baltimore Harbor-
132 AM EDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT EARLY THIS
MORNING...

Overnight
W winds 10 kt with gusts to 20 kt. Waves 1 ft. Rain.
Patchy fog. Vsby 1 NM or less.

SUN
SE winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms.

SUN NIGHT
SE winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Showers likely with a chance of tstms. Patchy fog. Vsby 1 to 3 NM.

MON
SE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. Showers
with a chance of tstms.

MON NIGHT
SE winds 10 kt with gusts to 20 kt. Waves 1 ft. Showers
likely.

TUE
SE winds 10 kt. Waves 1 ft. Showers and tstms likely.

TUE NIGHT
SE winds 5 to 10 kt. Waves 1 ft. Showers and tstms
likely.

WED
S winds 5 to 10 kt. Waves 1 ft. A chance of showers in the
morning, then showers and tstms likely.

THU
SW winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely,
then a chance of showers after midnight. 

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



ANZ539-222000-
Chester River to Queenstown MD-
132 AM EDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...

Overnight
SW winds 15 kt with gusts to 25 kt. Waves 2 ft. Rain.
Patchy fog. Vsby 1 NM or less.

SUN
SE winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms.

SUN NIGHT
SE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Showers likely with a chance of tstms. Patchy fog. Vsby 1 to 3 NM.

MON
SE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Showers with a chance of tstms.

MON NIGHT
SE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft. Showers likely.

TUE
SE winds 10 to 15 kt. Waves 1 ft. Showers and tstms likely.

TUE NIGHT
SE winds 10 kt. Waves 1 ft. Showers and tstms likely.

WED
S winds 10 kt. Waves 1 ft. A chance of showers in the
morning, then showers and tstms likely.

THU
SW winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely,
then a chance of showers after midnight. 

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



ANZ532-222000-
Chesapeake Bay from Sandy Point to North Beach-
132 AM EDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...

Overnight
W winds 15 kt with gusts to 20 kt. Waves 2 ft. Rain.
Patchy fog. Vsby 1 NM or less.

SUN
SE winds 5 to 10 kt. Waves 1 to 2 ft. Showers likely with a
chance of tstms.

SUN NIGHT
SE winds 10 to 15 kt with gusts to 25 kt. Waves 3 ft.
Showers likely with a chance of tstms. Patchy fog. Vsby 1 to 3 NM.

MON
S winds 10 to 15 kt with gusts to 20 kt. Waves 3 ft. Showers
with a chance of tstms.

MON NIGHT
SE winds 10 to 15 kt with gusts to 20 kt. Waves 3 ft.
Showers likely.

TUE
SE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Showers
and tstms likely.

TUE NIGHT
SE winds 10 to 15 kt. Waves 2 ft. Showers and tstms
likely.

WED
S winds 10 kt. Waves 1 to 2 ft. A chance of showers in the
morning, then showers and tstms likely.

THU
SW winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely,
then a chance of showers after midnight. 

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



ANZ540-222000-
Eastern Bay-
132 AM EDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...

Overnight
W winds 10 kt with gusts to 20 kt. Waves 2 ft. Rain.
Patchy fog. Vsby 1 NM or less.

SUN
SE winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms.

SUN NIGHT
SE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Showers likely with a chance of tstms. Patchy fog. Vsby 1 to 3 NM.

MON
SE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Showers
with a chance of tstms.

MON NIGHT
SE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Showers likely.

TUE
SE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Showers and tstms likely.

TUE NIGHT
SE winds 10 to 15 kt. Waves 1 ft. Showers and tstms
likely.

WED
S winds 10 kt. Waves 1 ft. A chance of showers in the
morning, then showers and tstms likely.

THU
SW winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely,
then a chance of showers after midnight. 

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



ANZ533-222000-
Chesapeake Bay from North Beach to Drum Point-
132 AM EDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE
TONIGHT...

Overnight
SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 to
3 ft. Rain likely. Patchy fog. Vsby 1 NM or less.

SUN
SE winds 10 to 15 kt. Gusts up to 20 kt. Waves 2 ft. Showers
likely with a chance of tstms.

SUN NIGHT
SE winds 10 to 15 kt with gusts to 25 kt. Waves 3 ft.
Showers likely with a chance of tstms. Patchy fog. Vsby 1 to 3 NM.

MON
SE winds 10 to 15 kt with gusts to 25 kt. Waves 3 ft. Showers
with a chance of tstms.

MON NIGHT
SE winds 10 to 15 kt with gusts to 20 kt. Waves 3 ft.
Showers likely.

TUE
SE winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft.
Showers and tstms likely.

TUE NIGHT
SE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Showers and tstms likely.

WED
S winds 10 kt. Waves 2 ft. A chance of showers in the
morning, then showers and tstms likely.

THU
SW winds 5 to 10 kt. Waves 2 ft. Tstms likely. Showers
likely. 

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



ANZ541-222000-
Choptank River to Cambridge MD and the Little Choptank River-
132 AM EDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...

Overnight
SW winds 15 kt with gusts to 20 kt. Waves 2 ft. Rain
likely. Patchy fog. Vsby 1 to 3 NM.

SUN
SE winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. Showers
likely with a chance of tstms.

SUN NIGHT
SE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Showers likely with a chance of tstms. Patchy fog. Vsby 1 to 3 NM.

MON
SE winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. Showers
with a chance of tstms.

MON NIGHT
SE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Showers likely.

TUE
SE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Showers
and tstms likely.

TUE NIGHT
SE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft. Showers and tstms likely.

WED
S winds 10 kt. Waves 1 ft. A chance of showers in the
morning, then showers and tstms likely.

THU
SW winds 5 to 10 kt. Waves 1 ft. Tstms likely. Showers
likely. 

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



ANZ542-222000-
Patuxent River to Broomes Island MD-
132 AM EDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...

Overnight
SW winds 10 kt with gusts to 20 kt. Waves 1 ft. Rain
likely. Patchy fog. Vsby 1 to 3 NM.

SUN
SE winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance
of tstms. Patchy fog. Vsby 1 to 3 NM.

SUN NIGHT
SE winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Showers likely with a chance of tstms. Patchy fog. Vsby 1 to 3 NM.

MON
SE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. Showers
with a chance of tstms.

MON NIGHT
SE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Showers likely.

TUE
SE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. Showers
and tstms likely.

TUE NIGHT
SE winds 10 to 15 kt. Waves 1 ft. Showers and tstms
likely.

WED
S winds 5 to 10 kt. Waves 1 ft. A chance of showers in the
morning, then showers and tstms likely.

THU
SW winds 5 to 10 kt. Waves 1 ft. Tstms likely. Showers
likely. 

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



ANZ534-222000-
Chesapeake Bay from Drum Point to Smith Point-
132 AM EDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE
TONIGHT...

Overnight
SW winds 15 kt with gusts to 25 kt. Waves 3 ft. A
chance of showers. Patchy fog. Vsby 1 to 3 NM.

SUN
SE winds 10 to 15 kt. Gusts up to 25 kt in the afternoon.
Waves 2 to 3 ft. Showers likely with a chance of tstms. Vsby 1 to
3 NM.

SUN NIGHT
SE winds 15 to 20 kt with gusts to 30 kt. Waves 4 ft.
Showers likely with a chance of tstms. Patchy fog. Vsby 1 to 3 NM.

MON
SE winds 15 to 20 kt with gusts to 30 kt. Waves 4 ft. Showers
with a chance of tstms.

MON NIGHT
SE winds 15 to 20 kt with gusts to 25 kt. Waves 4 ft.
Showers likely.

TUE
SE winds 15 kt with gusts to 20 kt. Waves 3 ft. Showers and
tstms likely.

TUE NIGHT
SE winds 10 to 15 kt with gusts to 20 kt. Waves 3 ft.
Showers and tstms likely.

WED
S winds 10 to 15 kt. Waves 2 to 3 ft...building to 4 ft after
midnight. A chance of showers in the morning, then showers and tstms
likely.

THU
SW winds 10 to 15 kt. Waves 2 to 3 ft. Tstms likely. Showers
likely. 

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



ANZ543-222000-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
132 AM EDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE
TONIGHT...

Overnight
SW winds 15 kt with gusts to 25 kt. Waves 2 ft. A
chance of showers. Patchy fog. Vsby 1 to 3 NM.

SUN
SE winds 10 to 15 kt. Gusts up to 25 kt in the afternoon.
Waves 2 ft. Showers likely with a chance of tstms.

SUN NIGHT
SE winds 10 to 15 kt with gusts to 25 kt. Waves 3 ft.
Showers likely. Patchy fog. Vsby 1 to 3 NM.

MON
SE winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. Showers
likely with a chance of tstms.

MON NIGHT
SE winds 15 to 20 kt with gusts to 25 kt. Waves 2 to
3 ft. Showers likely.

TUE
SE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Showers
and tstms likely.

TUE NIGHT
SE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Showers and tstms likely.

WED
S winds 10 to 15 kt. Waves 2 ft...building to 4 ft after
midnight. A chance of showers in the morning, then showers and tstms
likely.

THU
SW winds 10 to 15 kt. Waves 2 to 3 ft. Tstms likely. Showers
likely. 

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