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National Weather Service Marine Forecast FZUS51 KLWX

FZUS51 KLWX 121732
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1231 PM EST Tue Dec 12 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. 

ANZ500-130900-
1231 PM EST Tue Dec 12 2017

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

An arctic cold front will pass through today. High pressure will
return for Wednesday. Weak low pressure will pass through the waters
 late Wednesday night through early Thursday before high pressure
returns for Thursday night. Low pressure will develop as it  moves
up the coast Friday and high pressure will return for  Saturday. A
Small Craft Advisory may be needed for portions of the  waters
Thursday.



ANZ535-130900-
Tidal Potomac from Key Bridge to Indian Head-
1231 PM EST Tue Dec 12 2017

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON

...GALE WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH LATE
TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...

THIS AFTERNOON
W winds 15 kt with gusts to 20 kt... becoming NW
25 kt with gusts to 35 kt late. Waves 1 to 2 ft. Isolated rain and
snow showers. Vsby 1 to 3 NM.

TONIGHT
NW winds 25 kt with gusts to 35 kt. Waves 2 ft.

WED
W winds 20 kt with gusts to 25 kt. Waves 1 ft.

WED NIGHT
SW winds 5 to 10 kt. Waves 1 ft. Scattered snow
showers.

THU
NW winds 5 to 10 kt. Waves 1 ft.

THU NIGHT
N winds 5 to 10 kt. Waves 1 ft or less.

FRI
W winds around 5 kt. Waves 1 ft. A chance of rain or snow
through the day.

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



ANZ536-130900-
Tidal Potomac from Indian Head to Cobb Island-
1231 PM EST Tue Dec 12 2017

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON

...GALE WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH LATE
TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...

THIS AFTERNOON
W winds 15 kt with gusts to 20 kt... becoming NW
25 kt with gusts to 35 kt late. Waves 2 to 3 ft. Isolated rain and
snow showers. Vsby 1 to 3 NM.

TONIGHT
NW winds 25 kt with gusts to 35 kt. Waves 3 ft.

WED
W winds 20 kt with gusts to 25 kt. Waves 2 ft.

WED NIGHT
SW winds 5 to 10 kt. Waves 1 ft. Scattered snow
showers.

THU
NW winds 5 to 10 kt. Waves 1 ft.

THU NIGHT
N winds around 5 kt. Waves 1 ft.

FRI
W winds around 5 kt. Waves 1 ft. A chance of rain or snow
through the day.

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



ANZ537-130900-
Tidal Potomac from Cobb Island to Smith Point-
1231 PM EST Tue Dec 12 2017

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON

...GALE WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH
WEDNESDAY AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY EVENING THROUGH
LATE WEDNESDAY NIGHT...

THIS AFTERNOON
W winds 15 kt with gusts to 20 kt... increasing to
25 kt with gusts to 35 kt late. Waves 2 to 3 ft. Scattered rain and
snow showers. Vsby 1 to 3 NM.

TONIGHT
NW winds 25 to 30 kt. Waves 4 ft.

WED
W winds 25 kt with gusts to 35 kt. Waves 4 ft.

WED NIGHT
SW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.

THU
W winds 15 to 20 kt...becoming NW 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Waves 2 ft.

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

FRI
NW winds 5 to 10 kt. Waves 1 ft. A chance of rain or snow
through the day.

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



ANZ530-130900-
Chesapeake Bay north of Pooles Island-
1231 PM EST Tue Dec 12 2017

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON

...GALE WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH
WEDNESDAY AFTERNOON...

SMALL CRAFT ADVISORY IN EFFECT WEDNESDAY EVENING


THIS AFTERNOON
W winds 15 kt with gusts to 20 kt... increasing to
25 kt with gusts to 35 kt late. Waves 2 ft. Isolated rain and snow
showers. Vsby 1 to 3 NM.

TONIGHT
W winds 25 kt with gusts to 35 kt. Waves 3 ft.

WED
W winds 25 kt with gusts to 35 kt. Waves 3 ft.

WED NIGHT
W winds 10 to 15 kt with gusts to 20 kt...becoming SW
5 to 10 kt after midnight. Waves 1 ft. Scattered snow and rain
showers.

THU
NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Scattered rain and snow showers.

THU NIGHT
N winds 5 to 10 kt. Waves 1 ft or less.

FRI
W winds 5 to 10 kt. Waves 1 ft or less. A chance of rain in
the morning. A chance of snow through the day.

SAT
W winds 5 to 10 kt. Waves 1 ft. 



ANZ531-130900-
Chesapeake Bay from Pooles Island to Sandy Point-
1231 PM EST Tue Dec 12 2017

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON

...GALE WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH
WEDNESDAY AFTERNOON...

SMALL CRAFT ADVISORY IN EFFECT WEDNESDAY EVENING


THIS AFTERNOON
W winds 20 to 25 kt. Gusts up to 25 kt...
increasing to 35 kt late. Waves 2 to 3 ft. Isolated rain and snow
showers. Vsby 1 to 3 NM.

TONIGHT
W winds 25 to 30 kt. Waves 4 ft.

WED
W winds 25 to 30 kt. Waves 4 ft.

WED NIGHT
SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft. Scattered snow and rain showers.

THU
NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Scattered rain and snow showers.

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

FRI
NW winds 5 to 10 kt. Waves 1 ft or less. A chance of rain in
the morning. A chance of snow through the day.

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



ANZ538-130900-
Patapsco River including Baltimore Harbor-
1231 PM EST Tue Dec 12 2017

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON

...GALE WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH LATE
TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...

THIS AFTERNOON
W winds 15 kt with gusts to 20 kt... becoming NW
25 kt with gusts to 35 kt late. Waves 1 to 2 ft. Isolated rain and
snow showers. Vsby 1 to 3 NM.

TONIGHT
W winds 25 kt with gusts to 35 kt. Waves 2 ft.

WED
W winds 20 to 25 kt with gusts to 30 kt. Waves 2 ft.

WED NIGHT
SW winds 10 to 15 kt. Waves 1 ft or less. Scattered
snow and rain showers.

THU
W winds 10 to 15 kt. Waves 1 ft. Scattered rain and snow
showers.

THU NIGHT
N winds 5 to 10 kt. Waves 1 ft or less.

FRI
W winds around 5 kt. Waves 1 ft or less. A chance of rain in
the morning. A chance of snow through the day.

SAT
W winds 5 to 10 kt. Waves 1 ft. 



ANZ539-130900-
Chester River to Queenstown MD-
1231 PM EST Tue Dec 12 2017

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON

...GALE WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH
WEDNESDAY AFTERNOON...

SMALL CRAFT ADVISORY IN EFFECT WEDNESDAY EVENING


THIS AFTERNOON
W winds 15 kt with gusts to 25 kt... becoming NW
25 kt with gusts to 35 kt late. Waves 2 to 3 ft. Isolated rain and
snow showers. Vsby 1 to 3 NM.

TONIGHT
W winds 25 to 30 kt. Waves 4 ft.

WED
W winds 25 to 30 kt. Waves 4 ft.

WED NIGHT
SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft. Scattered rain and snow showers.

THU
W winds 10 to 15 kt...becoming NW in the afternoon. Gusts up
to 20 kt. Waves 2 ft.

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

FRI
N winds 5 kt...becoming W after midnight. Waves 1 ft or less.
A chance of rain or snow through the day.

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



ANZ532-130900-
Chesapeake Bay from Sandy Point to North Beach-
1231 PM EST Tue Dec 12 2017

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON

...GALE WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH
WEDNESDAY AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY EVENING THROUGH
LATE WEDNESDAY NIGHT...

THIS AFTERNOON
W winds 15 kt with gusts to 20 kt... becoming NW
25 kt with gusts to 35 kt late. Waves 2 to 3 ft. Isolated rain and
snow showers. Vsby 1 to 3 NM.

TONIGHT
NW winds 25 kt with gusts to 35 kt. Waves 4 ft.

WED
W winds 25 kt with gusts to 35 kt. Waves 4 ft.

WED NIGHT
SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Scattered rain and snow showers.

THU
W winds 10 to 15 kt...becoming NW in the afternoon. Gusts up
to 20 kt. Waves 2 ft.

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

FRI
NW winds 5 to 10 kt. Waves 1 ft. A chance of rain or snow
through the day.

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



ANZ540-130900-
Eastern Bay-
1231 PM EST Tue Dec 12 2017

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON

...GALE WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH
WEDNESDAY AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY EVENING THROUGH
LATE WEDNESDAY NIGHT...

THIS AFTERNOON
W winds 15 kt with gusts to 20 kt... becoming NW
25 kt with gusts to 35 kt late. Waves 2 to 3 ft. Isolated rain and
snow showers. Vsby 1 to 3 NM.

TONIGHT
NW winds 25 kt with gusts to 35 kt. Waves 4 ft.

WED
W winds 25 kt with gusts to 35 kt. Waves 3 ft.

WED NIGHT
SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.

THU
W winds 10 to 15 kt...becoming NW in the afternoon. Gusts up
to 20 kt. Waves 2 ft.

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

FRI
NW winds 5 to 10 kt. Waves 1 ft or less. A chance of rain or
snow through the day.

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



ANZ533-130900-
Chesapeake Bay from North Beach to Drum Point-
1231 PM EST Tue Dec 12 2017

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON

...GALE WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH
WEDNESDAY AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY EVENING THROUGH
LATE WEDNESDAY NIGHT...

THIS AFTERNOON
W winds 15 kt with gusts to 20 kt... becoming NW
25 kt with gusts to 35 kt late. Waves 2 to 3 ft. Isolated rain and
snow showers. Vsby 1 to 3 NM.

TONIGHT
NW winds 25 to 30 kt. Waves 5 ft.

WED
W winds 25 kt with gusts to 35 kt. Waves 4 ft.

WED NIGHT
SW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.

THU
W winds 15 to 20 kt...becoming NW 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Waves 2 ft.

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

FRI
NW winds 5 to 10 kt. Waves 1 ft. A chance of rain or snow
through the day.

SAT
SW winds 10 to 15 kt. Waves 2 to 3 ft. 



ANZ541-130900-
Choptank River to Cambridge MD and the Little Choptank River-
1231 PM EST Tue Dec 12 2017

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON

...GALE WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH
WEDNESDAY AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY EVENING THROUGH
LATE WEDNESDAY NIGHT...

THIS AFTERNOON
W winds 15 kt with gusts to 20 kt... becoming NW
25 kt with gusts to 35 kt late. Waves 2 to 3 ft. Isolated rain and
snow showers. Vsby 1 to 3 NM.

TONIGHT
NW winds 25 to 30 kt. Waves 4 ft.

WED
W winds 25 to 30 kt. Waves 4 ft.

WED NIGHT
SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.

THU
W winds 15 to 20 kt...becoming NW 10 to 15 kt in the
afternoon. Waves 2 ft.

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

FRI
NW winds 5 to 10 kt. Waves 1 ft. A chance of rain or snow
through the day.

SAT
SW winds 10 to 15 kt. Waves 1 to 2 ft. 



ANZ542-130900-
Patuxent River to Broomes Island MD-
1231 PM EST Tue Dec 12 2017

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON

...GALE WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH LATE
TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...

SMALL CRAFT ADVISORY IN EFFECT LATE WEDNESDAY NIGHT


THIS AFTERNOON
W winds 15 kt with gusts to 20 kt... becoming NW
25 kt with gusts to 35 kt late. Waves 1 to 2 ft. Scattered rain and
snow showers. Vsby 1 to 3 NM.

TONIGHT
W winds 25 kt with gusts to 35 kt. Waves 2 ft.

WED
W winds 15 to 20 kt with gusts to 30 kt. Waves 1 ft.

WED NIGHT
SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.

THU
W winds 10 to 15 kt...becoming NW in the afternoon. Gusts up
to 20 kt. Waves 1 ft.

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

FRI
NW winds 5 to 10 kt. Waves 1 ft. A chance of rain or snow
through the day.

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



ANZ534-130900-
Chesapeake Bay from Drum Point to Smith Point-
1231 PM EST Tue Dec 12 2017

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON

...GALE WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH
WEDNESDAY AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY EVENING THROUGH
LATE WEDNESDAY NIGHT...

THIS AFTERNOON
W winds 20 to 25 kt. Gusts up to 25 kt...
increasing to 35 kt late. Waves 3 ft. Scattered showers. Vsby 1 to
3 NM.

TONIGHT
NW winds 25 to 35 kt. Waves 6 ft.

WED
W winds 25 to 30 kt. Waves 5 ft.

WED NIGHT
SW winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
Scattered rain and snow showers.

THU
W winds 15 to 20 kt...becoming NW in the afternoon. Gusts up
to 30 kt. Waves 3 ft.

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

FRI
NW winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain or
snow through the day.

SAT
SW winds 10 to 15 kt. Waves 2 to 3 ft. 



ANZ543-130900-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1231 PM EST Tue Dec 12 2017

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON

...GALE WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH
WEDNESDAY AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY EVENING THROUGH
LATE WEDNESDAY NIGHT...

THIS AFTERNOON
W winds 15 kt with gusts to 20 kt... increasing to
25 kt with gusts to 35 kt late. Waves 2 ft. Scattered showers. Vsby
1 to 3 NM.

TONIGHT
NW winds 25 to 30 kt with gusts to 45 kt. Waves 4 ft.

WED
W winds 25 to 30 kt. Waves 3 ft.

WED NIGHT
SW winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
Scattered rain and snow showers.

THU
W winds 15 to 20 kt...becoming NW in the afternoon. Gusts up
to 30 kt. Waves 2 ft.

THU NIGHT
N winds 10 to 15 kt...becoming NE 5 to 10 kt after
midnight. Waves 1 ft.

FRI
NW winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain or
snow through the day.

SAT
W winds 10 to 15 kt. Waves 2 to 3 ft.