Skip Navigation Links weather.gov 
NOAA logo-Select to go to the NOAA homepage NDBC Title GraphicClick to go to NDBC home page   Select to go to the NWS homepage
Home About Us Contact Us
 
 
    
    Station List

 Data Access
    Mobile Access
    Classic Maps
         Recent
         DART®
    Obs Search
    Ship Obs Report
    BuoyCAMs
    TAO
    DODS
    OceanSITES
    HF Radar
    OSMC
    Dial-A-Buoy
    RSS Feeds Image indicating link to RSS feed access page
    Web Widget
    Web Data Guide
    Maintenance Schedule
    Station Status Report

 Program Info
    TAO
    DART®
    IOOS®

 Publications
    NDBC PEA
    NDBC FONSI
    NDBC DQC Handbook

 Visitor Information
 
USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.

National Weather Service Marine Forecast FZUS51 KLWX

FZUS51 KLWX 231743
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1243 PM EST Mon Nov 23 2020

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. 

ANZ500-240900-
1243 PM EST Mon Nov 23 2020

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

Canadian high pressure will return this afternoon through Tuesday.
The next area of low pressure will track into the Great Lakes late
Wednesday into Thanksgiving Day, ushering in another cold front
through the waters. A Small Craft Advisory may be required for
portions of the waters Wednesday afternoon through Wednesday night.



ANZ535-240900-
Tidal Potomac from Key Bridge to Indian Head-
1243 PM EST Mon Nov 23 2020

SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EST THIS EVENING


THIS AFTERNOON
NW winds 15 kt with gusts to 30 kt. Waves 1 ft.

TONIGHT
NW winds 5 to 10 kt. Gusts up to 20 kt in the evening.
Waves 1 ft.

TUE
N winds around 5 kt. Waves 1 ft.

TUE NIGHT
SE winds around 5 kt. Waves 1 ft.

WED
S winds 5 to 10 kt. Waves 1 ft.

WED NIGHT
S winds 5 to 10 kt. Waves 1 ft. Showers.

THU
NW winds around 5 kt. Waves 1 ft. A chance of showers in the
morning.

FRI
NW winds around 5 kt. Waves 1 ft. 



ANZ536-240900-
Tidal Potomac from Indian Head to Cobb Island-
1243 PM EST Mon Nov 23 2020

SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EST THIS EVENING


THIS AFTERNOON
NW winds 15 kt with gusts to 30 kt. Waves 2 ft.

TONIGHT
NW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.

TUE
N winds around 5 kt. Waves 1 ft.

TUE NIGHT
S winds around 5 kt. Waves 1 ft.

WED
S winds 5 to 10 kt. Waves 1 ft.

WED NIGHT
S winds 5 to 10 kt. Waves 1 ft. Showers.

THU
NW winds 5 to 10 kt. Waves 1 ft. A chance of showers in the
morning.

FRI
NW winds around 5 kt. Waves 1 ft. 



ANZ537-240900-
Tidal Potomac from Cobb Island to Smith Point-
1243 PM EST Mon Nov 23 2020

SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING


THIS AFTERNOON
NW winds 20 kt with gusts to 30 kt. Waves 3 ft.

TONIGHT
NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 to
3 ft.

TUE
N winds 5 to 10 kt. Gusts up to 20 kt until late afternoon.
Waves 1 to 2 ft.

TUE NIGHT
S winds around 5 kt. Waves 1 ft or less.

WED
S winds 5 to 10 kt. Waves 1 ft.

WED NIGHT
S winds 10 kt with gusts to 20 kt. Waves 2 ft. Showers
likely.

THU
NW winds 5 to 10 kt. Waves 1 to 2 ft. Showers likely, mainly
in the morning.

FRI
NW winds around 5 kt. Waves 1 ft or less. 



ANZ530-240900-
Chesapeake Bay north of Pooles Island-
1243 PM EST Mon Nov 23 2020

SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EST THIS EVENING


THIS AFTERNOON
NW winds 15 kt with gusts to 30 kt. Waves 2 ft.

TONIGHT
NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.

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

TUE NIGHT
SE winds around 5 kt. Waves 1 ft or less.

WED
S winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.

WED NIGHT
S winds 10 kt. Waves 1 ft. Showers likely.

THU
NW winds 5 to 10 kt. Waves 1 ft or less. Showers likely,
mainly in the morning.

FRI
NW winds around 5 kt. Waves 1 ft or less. 



ANZ531-240900-
Chesapeake Bay from Pooles Island to Sandy Point-
1243 PM EST Mon Nov 23 2020

SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING


THIS AFTERNOON
NW winds 15 to 20 kt with gusts to 30 kt. Waves
3 ft.

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

TUE
N winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves
1 to 2 ft.

TUE NIGHT
SE winds 5 to 10 kt. Waves 1 ft or less.

WED
S winds 5 to 10 kt with gusts to 20 kt. Waves 1 to 2 ft.

WED NIGHT
S winds 10 kt with gusts to 20 kt. Waves 2 ft. Showers.

THU
NW winds 5 to 10 kt. Waves 1 to 2 ft. Showers likely, mainly
in the morning.

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



ANZ538-240900-
Patapsco River including Baltimore Harbor-
1243 PM EST Mon Nov 23 2020

SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EST THIS EVENING


THIS AFTERNOON
NW winds 15 kt with gusts to 30 kt. Waves 2 ft.

TONIGHT
NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.

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

TUE NIGHT
SE winds around 5 kt. Waves 1 ft or less.

WED
S winds 5 to 10 kt. Waves 1 ft.

WED NIGHT
S winds 10 kt. Waves 1 ft. Showers.

THU
NW winds 5 to 10 kt. Waves 1 ft or less. A chance of showers
in the morning.

FRI
W winds around 5 kt. Waves flat. 



ANZ539-240900-
Chester River to Queenstown MD-
1243 PM EST Mon Nov 23 2020

SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING


THIS AFTERNOON
NW winds 20 kt with gusts to 30 kt. Waves 3 ft.

TONIGHT
NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 to
3 ft.

TUE
N winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves
1 to 2 ft.

TUE NIGHT
SE winds around 5 kt. Waves 1 ft or less.

WED
S winds 5 to 10 kt with gusts to 20 kt. Waves 1 to 2 ft.

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

THU
NW winds 5 to 10 kt. Waves 1 ft. Showers likely, mainly in
the morning.

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



ANZ532-240900-
Chesapeake Bay from Sandy Point to North Beach-
1243 PM EST Mon Nov 23 2020

SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING


THIS AFTERNOON
NW winds 20 kt with gusts to 30 kt. Waves 3 ft.

TONIGHT
NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 to
3 ft.

TUE
N winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves
1 to 2 ft.

TUE NIGHT
SE winds 5 to 10 kt. Waves 1 ft or less.

WED
S winds 10 kt with gusts to 20 kt. Waves 2 ft.

WED NIGHT
S winds 10 kt with gusts to 20 kt. Waves 2 ft. Showers.

THU
NW winds 5 to 10 kt. Waves 1 to 2 ft. Showers likely, mainly
in the morning.

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



ANZ540-240900-
Eastern Bay-
1243 PM EST Mon Nov 23 2020

SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING


THIS AFTERNOON
NW winds 15 to 20 kt with gusts to 30 kt. Waves
2 to 3 ft.

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

TUE
N winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves
1 ft.

TUE NIGHT
SE winds 5 to 10 kt. Waves 1 ft or less.

WED
S winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.

WED NIGHT
S winds 10 kt with gusts to 20 kt. Waves 1 ft. Showers.

THU
NW winds 5 to 10 kt. Waves 1 ft. Showers likely, mainly in
the morning.

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



ANZ533-240900-
Chesapeake Bay from North Beach to Drum Point-
1243 PM EST Mon Nov 23 2020

SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING


THIS AFTERNOON
NW winds 20 kt with gusts to 30 kt. Waves 3 ft.

TONIGHT
NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 to
3 ft.

TUE
N winds 10 to 15 kt with gusts to 20 kt... diminishing to
5 kt late. Waves 1 to 2 ft.

TUE NIGHT
SE winds 5 to 10 kt. Waves 1 ft.

WED
S winds 5 to 10 kt with gusts to 20 kt. Waves 1 to 2 ft.

WED NIGHT
S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Showers likely.

THU
NW winds 5 to 10 kt. Waves 1 to 2 ft. Showers likely, mainly
in the morning.

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



ANZ541-240900-
Choptank River to Cambridge MD and the Little Choptank River-
1243 PM EST Mon Nov 23 2020

SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING


THIS AFTERNOON
NW winds 20 kt with gusts to 30 kt. Waves 3 ft.

TONIGHT
NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 to
3 ft.

TUE
N winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves
1 to 2 ft.

TUE NIGHT
SE winds around 5 kt. Waves 1 ft or less.

WED
S winds 5 to 10 kt. Waves 1 ft.

WED NIGHT
S winds 10 kt with gusts to 20 kt. Waves 2 ft. Showers
likely.

THU
NW winds 5 to 10 kt. Waves 1 ft. Showers likely, mainly in
the morning.

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



ANZ542-240900-
Patuxent River to Broomes Island MD-
1243 PM EST Mon Nov 23 2020

SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EST THIS EVENING


THIS AFTERNOON
NW winds 15 kt with gusts to 30 kt. Waves 1 ft.

TONIGHT
NW winds 10 to 15 kt. Gusts up to 25 kt until early
morning. Waves 1 ft.

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

TUE NIGHT
S winds around 5 kt. Waves 1 ft.

WED
S winds 5 to 10 kt. Waves 1 ft.

WED NIGHT
S winds 10 kt. Waves 1 ft. Showers likely.

THU
NW winds 5 to 10 kt. Waves 1 ft. Showers likely in the
morning.

FRI
NW winds around 5 kt. Waves 1 ft. 



ANZ534-240900-
Chesapeake Bay from Drum Point to Smith Point-
1243 PM EST Mon Nov 23 2020

SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING


THIS AFTERNOON
NW winds 20 kt with gusts to 30 kt. Waves 4 ft.

TONIGHT
NW winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.

TUE
N winds 10 to 15 kt. Gusts up to 20 kt until late afternoon.
Waves 2 to 3 ft.

TUE NIGHT
SE winds 5 to 10 kt. Waves 1 ft.

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

WED NIGHT
S winds 10 to 15 kt with gusts to 20 kt. Waves 3 ft.
Showers likely.

THU
SW winds 10 to 15 kt...becoming NW 5 to 10 kt. Waves 1 to
2 ft. Showers likely, mainly in the morning.

FRI
NW winds 5 kt. Waves less than 1 ft. 



ANZ543-240900-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1243 PM EST Mon Nov 23 2020

SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING


THIS AFTERNOON
NW winds 20 kt with gusts to 30 kt. Waves 3 ft.

TONIGHT
NW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.

TUE
N winds 10 to 15 kt. Gusts up to 20 kt until late afternoon.
Waves 1 to 2 ft.

TUE NIGHT
SE winds 5 to 10 kt. Waves 1 ft or less.

WED
S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.

WED NIGHT
S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Showers likely.

THU
SW winds 10 to 15 kt...becoming NW 5 to 10 kt. Waves 1 to
2 ft. Showers likely, mainly in the morning.

FRI
NW winds 5 kt. Waves less than 1 ft.