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National Weather Service Marine Forecast FZUS51 KLWX

FZUS51 KLWX 280832
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
432 AM EDT Fri Jul 28 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. 

ANZ500-282300-
432 AM EDT Fri Jul 28 2017

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

Low pressure will approach the waters today and then intensify as it
 moves over the Mid Atlantic tonight. The low is expected to stall
out over the DelMarVa Peninsula Saturday into early Sunday before
moving out to sea late Sunday into Monday. A Gale Warning may be
needed for portions of the waters Saturday afternoon through
Saturday night.



ANZ535-282300-
Tidal Potomac from Key Bridge to Indian Head-
432 AM EDT Fri Jul 28 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY EVENING...

REST OF THE OVERNIGHT
W winds 5 kt. Waves less than 1 ft.
Scattered showers with isolated tstms.

TODAY
S winds 5 kt. Waves less than 1 ft. Widespread showers with
a chance of tstms. Vsby 1 NM or less.

TONIGHT
NE winds 5 to 10 kt. Waves 1 ft. Widespread showers with
a chance of tstms. Vsby 1 NM or less.

SAT
N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. Showers.

SAT NIGHT
N winds 10 kt with gusts to 20 kt. Waves 1 ft. A chance
of showers.

SUN
N winds 5 to 10 kt. Waves 1 ft.

SUN NIGHT
N winds 5 kt. Waves less than 1 ft.

MON
W winds around 5 kt. Waves 1 ft.

TUE
SW winds around 5 kt. Waves 1 ft. 

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



ANZ536-282300-
Tidal Potomac from Indian Head to Cobb Island-
432 AM EDT Fri Jul 28 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY EVENING...

REST OF THE OVERNIGHT
SW winds 5 kt. Waves less than 1 ft.
Scattered showers with isolated tstms.

TODAY
S winds 5 kt. Waves less than 1 ft. Widespread showers with
a chance of tstms. Vsby 1 NM or less.

TONIGHT
NE winds 5 kt. Waves less than 1 ft. Widespread showers
with a chance of tstms. Vsby 1 NM or less.

SAT
N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. Showers.

SAT NIGHT
N winds 10 kt with gusts to 20 kt. Waves 1 ft. A chance
of showers.

SUN
N winds 5 to 10 kt. Waves 1 ft.

SUN NIGHT
N winds 5 to 10 kt. Waves 1 ft.

MON
W winds around 5 kt. Waves 1 ft.

TUE
SW winds around 5 kt. Waves 1 ft. 

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



ANZ537-282300-
Tidal Potomac from Cobb Island to Smith Point-
432 AM EDT Fri Jul 28 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY
MORNING...

REST OF THE OVERNIGHT
SW winds 10 kt. Waves 1 ft. Scattered
showers with isolated tstms.

TODAY
S winds 5 to 10 kt. Waves 1 ft. Numerous showers with a
chance of tstms. Vsby 1 NM or less.

TONIGHT
SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 to 2 ft.
Widespread showers with a chance of tstms. Vsby 1 NM or less.

SAT
NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
Showers.

SAT NIGHT
N winds 10 to 15 kt with gusts to 25 kt. Waves 3 ft. A
chance of showers.

SUN
N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.

SUN NIGHT
N winds 10 to 15 kt with gusts to 20 kt. Waves 2 to
3 ft.

MON
NW winds 5 to 10 kt. Waves 1 to 2 ft.

TUE
SW winds 5 to 10 kt. Waves 1 ft. 

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



ANZ530-282300-
Chesapeake Bay north of Pooles Island-
432 AM EDT Fri Jul 28 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY EVENING...

REST OF THE OVERNIGHT
SE winds 5 kt. Waves less than 1 ft.
Scattered showers with isolated tstms.

TODAY
E winds 5 kt. Waves flat. Widespread showers with a chance
of tstms. Vsby 1 NM or less.

TONIGHT
NE winds 5 to 10 kt. Gusts up to 20 kt in the late
evening and overnight. Waves 1 ft. Widespread showers with a chance
of tstms. Vsby 1 NM or less.

SAT
N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. Showers
likely.

SAT NIGHT
N winds 10 to 15 kt. Gusts up to 25 kt in the evening.
Waves 1 ft. A chance of showers.

SUN
N winds 10 kt. Waves 1 ft.

SUN NIGHT
NE winds 5 kt. Waves less than 1 ft.

MON
NE winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft.

TUE
W winds 5 kt. Waves less than 1 ft. 

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



ANZ531-282300-
Chesapeake Bay from Pooles Island to Sandy Point-
432 AM EDT Fri Jul 28 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
MORNING...

REST OF THE OVERNIGHT
SW winds 5 kt. Waves less than 1 ft.
Scattered showers with isolated tstms.

TODAY
SE winds 5 kt. Waves less than 1 ft. Widespread showers
with a chance of tstms. Vsby 1 NM or less.

TONIGHT
NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Widespread showers with a chance of tstms. Vsby 1 NM or less.

SAT
N winds 10 to 15 kt with gusts to 30 kt. Waves 2 to 3 ft.
Showers.

SAT NIGHT
N winds 10 to 15 kt with gusts to 25 kt. Waves 2 to
3 ft. A chance of showers.

SUN
N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.

SUN NIGHT
NE winds 5 to 10 kt. Waves 1 ft.

MON
NE winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft.

TUE
W winds 5 kt. Waves less than 1 ft. 

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



ANZ538-282300-
Patapsco River including Baltimore Harbor-
432 AM EDT Fri Jul 28 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY EVENING...

REST OF THE OVERNIGHT
W winds 5 kt. Waves flat. Scattered showers
with isolated tstms.

TODAY
E winds 5 kt. Waves flat. Widespread showers with a chance
of tstms. Vsby 1 NM or less.

TONIGHT
NE winds 5 to 10 kt. Gusts up to 20 kt in the late
evening and overnight. Waves 1 ft. Widespread showers with a chance
of tstms. Vsby 1 NM or less.

SAT
N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. Showers.

SAT NIGHT
N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. A
chance of showers.

SUN
N winds 10 kt. Waves 1 ft.

SUN NIGHT
N winds 5 to 10 kt. Waves 1 ft.

MON
W winds around 5 kt. Waves 1 ft.

TUE
W winds 5 kt. Waves less than 1 ft. 

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



ANZ539-282300-
Chester River to Queenstown MD-
432 AM EDT Fri Jul 28 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
MORNING...

REST OF THE OVERNIGHT
SW winds 5 kt. Waves less than 1 ft.
Scattered showers with isolated tstms.

TODAY
SE winds 5 kt. Waves less than 1 ft. Widespread showers
with a chance of tstms. Vsby 1 NM or less.

TONIGHT
NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Widespread showers with a chance of tstms. Vsby 1 NM or less.

SAT
N winds 10 to 15 kt with gusts to 30 kt. Waves 2 ft. Showers.

SAT NIGHT
N winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. A
chance of showers.

SUN
N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.

SUN NIGHT
NE winds 5 to 10 kt. Waves 1 ft.

MON
NE winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft.

TUE
SW winds 5 kt. Waves less than 1 ft. 

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



ANZ532-282300-
Chesapeake Bay from Sandy Point to North Beach-
432 AM EDT Fri Jul 28 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
MORNING...

REST OF THE OVERNIGHT
SW winds 5 kt. Waves less than 1 ft.
Scattered showers with isolated tstms.

TODAY
S winds 5 to 10 kt. Waves 1 ft or less. Widespread showers
with a chance of tstms. Vsby 1 NM or less.

TONIGHT
NE winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Widespread showers with a chance of tstms. Vsby 1 NM or less.

SAT
N winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. Showers.

SAT NIGHT
N winds 15 kt with gusts to 25 kt. Waves 3 ft. A chance
of showers.

SUN
N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.

SUN NIGHT
NE winds 5 to 10 kt. Waves 1 to 2 ft.

MON
NE winds 5 to 10 kt...becoming W after midnight. Waves 1 ft.

TUE
SW winds 5 kt. Waves less than 1 ft. 

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



ANZ540-282300-
Eastern Bay-
432 AM EDT Fri Jul 28 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
MORNING...

REST OF THE OVERNIGHT
SW winds 5 kt. Waves less than 1 ft.
Scattered showers with isolated tstms.

TODAY
S winds 5 to 10 kt. Waves 1 ft or less. Widespread showers
with a chance of tstms. Vsby 1 NM or less.

TONIGHT
NE winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Widespread showers with a chance of tstms. Vsby 1 NM or less.

SAT
N winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft.
Showers.

SAT NIGHT
N winds 15 kt with gusts to 25 kt. Waves 2 ft. A chance
of showers.

SUN
N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.

SUN NIGHT
NE winds 5 to 10 kt. Waves 1 ft.

MON
NE winds 5 to 10 kt...becoming W after midnight. Waves 1 ft.

TUE
SW winds 5 kt. Waves less than 1 ft. 

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



ANZ533-282300-
Chesapeake Bay from North Beach to Drum Point-
432 AM EDT Fri Jul 28 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
MORNING...

REST OF THE OVERNIGHT
SW winds 10 kt. Waves 1 ft. Scattered
showers with isolated tstms.

TODAY
S winds 5 to 10 kt. Waves 1 ft. Widespread showers with a
chance of tstms. Vsby 1 NM or less.

TONIGHT
SE winds 5 to 10 kt...becoming N late. Waves 1 ft.
Widespread showers with a chance of tstms. Vsby 1 NM or less.

SAT
N winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. Showers.

SAT NIGHT
N winds 15 kt with gusts to 25 kt. Waves 3 ft. A chance
of showers.

SUN
N winds 10 to 15 kt with gusts to 20 kt. Waves 3 ft.

SUN NIGHT
NE winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft.

MON
NE winds 5 to 10 kt...becoming NW after midnight. Waves 1 to
2 ft.

TUE
SW winds 5 to 10 kt. Waves 1 to 2 ft. 

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



ANZ541-282300-
Choptank River to Cambridge MD and the Little Choptank River-
432 AM EDT Fri Jul 28 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
MORNING...

REST OF THE OVERNIGHT
SW winds 10 kt. Waves 1 ft. Scattered
showers with isolated tstms.

TODAY
S winds 5 to 10 kt. Waves 1 ft or less. Widespread showers
with a chance of tstms. Vsby 1 NM or less.

TONIGHT
SE winds 5 to 10 kt...becoming NE after midnight. Waves
1 ft. Widespread showers with a chance of tstms. Vsby 1 NM or less.

SAT
N winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft.
Showers.

SAT NIGHT
N winds 15 kt with gusts to 25 kt. Waves 2 ft. A chance
of showers.

SUN
N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.

SUN NIGHT
NE winds 5 to 10 kt. Waves 1 to 2 ft.

MON
NE winds 5 to 10 kt...becoming W after midnight. Waves 1 ft.

TUE
SW winds 5 to 10 kt. Waves 1 ft. 

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



ANZ542-282300-
Patuxent River to Broomes Island MD-
432 AM EDT Fri Jul 28 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
MORNING...

REST OF THE OVERNIGHT
SW winds 5 kt. Waves less than 1 ft.
Scattered showers with isolated tstms.

TODAY
S winds 5 kt. Waves less than 1 ft. Widespread showers with
a chance of tstms. Vsby 1 NM or less.

TONIGHT
S winds 5 to 10 kt...becoming NW late. Waves 1 ft.
Widespread showers with a chance of tstms. Vsby 1 NM or less.

SAT
N winds 10 to 15 kt. Gusts up to 25 kt in the afternoon.
Waves 1 ft. Showers.

SAT NIGHT
N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. A
chance of showers.

SUN
N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.

SUN NIGHT
N winds 5 to 10 kt. Waves 1 ft.

MON
N winds 5 to 10 kt...becoming W after midnight. Waves 1 ft.

TUE
SW winds 5 kt. Waves less than 1 ft. 

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



ANZ534-282300-
Chesapeake Bay from Drum Point to Smith Point-
432 AM EDT Fri Jul 28 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY
MORNING...

REST OF THE OVERNIGHT
SW winds 15 kt. Waves 2 ft. Scattered
showers with isolated tstms.

TODAY
S winds 5 to 10 kt. Waves 1 to 2 ft. Numerous showers with
a chance of tstms. Vsby 1 NM or less.

TONIGHT
SW winds 10 to 15 kt. Gusts up to 20 kt. Waves 2 ft.
Widespread showers with a chance of tstms. Vsby 1 NM or less.

SAT
NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
Showers.

SAT NIGHT
N winds 15 to 20 kt with gusts to 30 kt. Waves 4 ft. A
chance of showers.

SUN
N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.

SUN NIGHT
NE winds 10 to 15 kt with gusts to 20 kt. Waves 3 ft.

MON
N winds 10 to 15 kt...becoming NW 5 to 10 kt after midnight.
Waves 2 to 3 ft.

TUE
NW winds 5 to 10 kt...becoming SW. Waves 1 to 2 ft. 

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



ANZ543-282300-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
432 AM EDT Fri Jul 28 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY
MORNING...

REST OF THE OVERNIGHT
SW winds 15 kt. Waves 2 ft. Scattered
showers with isolated tstms.

TODAY
S winds 5 to 10 kt. Waves 1 to 2 ft. Numerous showers with
a chance of tstms. Vsby 1 NM or less.

TONIGHT
SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 to 2 ft.
Widespread showers with a chance of tstms. Vsby 1 NM or less.

SAT
W winds 10 to 15 kt...becoming N in the afternoon. Gusts up
to 25 kt. Waves 2 ft. Showers.

SAT NIGHT
N winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft. A
chance of showers.

SUN
N winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft.

SUN NIGHT
NE winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.

MON
N winds 10 to 15 kt...becoming NW 5 kt after midnight. Waves
1 to 2 ft.

TUE
SW winds 5 to 10 kt. Waves 1 to 2 ft. 

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