National Weather Service Marine Forecast FZUS51 KLWX

FZUS51 KLWX 090859
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
359 AM EST Mon Feb 9 2026

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. Waves flat where waters are iced over.

ANZ500-092300
359 AM EST Mon Feb 9 2026

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

Winds will gradually diminish as high pressure returns today. A warm front will cross the waters on Tuesday, followed by a cold front Tuesday night. High pressure will briefly return for mid week. Additional Small Craft Advisories may be needed at times Wednesday through Thursday.

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ANZ535-092300
Tidal Potomac from Key Bridge to Indian Head
359 AM EST Mon Feb 9 2026

REST OF THE OVERNIGHT
NW winds 5 kt. Waves less than 1 ft.

TODAY
NW winds around 5 kt. Waves 1 ft.

TONIGHT
Light winds. Waves flat.

TUE
S winds around 5 kt. Waves 1 ft.

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

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

WED NIGHT
NW winds 5 to 10 kt. Waves 1 ft.

THU
NW winds 10 to 15 kt. Waves 1 ft.

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

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ANZ536-092300
Tidal Potomac from Indian Head to Cobb Island
359 AM EST Mon Feb 9 2026

REST OF THE OVERNIGHT
NW winds 5 kt. Waves less than 1 ft.

TODAY
NW winds around 5 kt. Waves 1 ft.

TONIGHT
SE winds around 5 kt. Waves 1 ft.

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

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

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

WED NIGHT
NW winds 10 to 15 kt. Waves 1 ft.

THU
NW winds 10 to 15 kt. Waves 1 ft.

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

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ANZ537-092300
Tidal Potomac from Cobb Island to Smith Point
359 AM EST Mon Feb 9 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST THIS MORNING

REST OF THE OVERNIGHT
NW winds 10 kt. Waves 2 ft.

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

TONIGHT
S winds around 5 kt. Waves flat.

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

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

WED
NW winds 10 to 15 kt. Waves 1 ft.

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

THU
NW winds 10 to 15 kt. Waves 1 to 2 ft.

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

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ANZ530-092300
Chesapeake Bay north of Pooles Island
359 AM EST Mon Feb 9 2026

REST OF THE OVERNIGHT
NW winds 10 kt. Waves 1 ft.

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

TONIGHT
W winds around 5 kt. Waves flat.

TUE
S winds around 5 kt. Waves flat.

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

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

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

THU
NW winds 10 to 15 kt. Waves 1 ft.

FRI
NW winds 5 to 10 kt. Waves 1 ft or less.

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ANZ531-092300
Chesapeake Bay from Pooles Island to Sandy Point
359 AM EST Mon Feb 9 2026

REST OF THE OVERNIGHT
NW winds 10 kt. Waves 1 ft.

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

TONIGHT
Light winds. Waves flat.

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

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

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

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

THU
NW winds 10 to 15 kt. Waves 1 to 2 ft.

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

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ANZ538-092300
Patapsco River including Baltimore Harbor
359 AM EST Mon Feb 9 2026

REST OF THE OVERNIGHT
NW winds 10 kt. Waves 1 ft.

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

TONIGHT
Light winds. Waves flat.

TUE
SE winds around 5 kt. Waves flat.

TUE NIGHT
W winds around 5 kt. Waves flat.

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

WED NIGHT
NW winds 10 kt. Waves 1 ft.

THU
NW winds 10 to 15 kt...diminishing to 5 kt. Waves 1 ft or less.

FRI
NW winds 5 to 10 kt. Waves 1 ft or less.

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ANZ539-092300
Chester River to Queenstown MD
359 AM EST Mon Feb 9 2026

REST OF THE OVERNIGHT
NW winds 10 kt. Waves 1 ft.

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

TONIGHT
Light winds. Waves flat.

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

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

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

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

THU
NW winds 10 to 15 kt. Waves 1 to 2 ft.

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

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ANZ532-092300
Chesapeake Bay from Sandy Point to North Beach
359 AM EST Mon Feb 9 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST THIS MORNING

REST OF THE OVERNIGHT
NW winds 10 kt. Waves 1 ft.

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

TONIGHT
S winds around 5 kt. Waves flat.

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

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

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

WED NIGHT
NW winds 15 to 20 kt. Waves 2 ft.

THU
NW winds 10 to 15 kt. Waves 1 to 2 ft.

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

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ANZ540-092300
Eastern Bay
359 AM EST Mon Feb 9 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST THIS MORNING

REST OF THE OVERNIGHT
NW winds 10 kt. Waves 1 ft.

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

TONIGHT
S winds around 5 kt. Waves flat.

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

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

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

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

THU
NW winds 10 to 15 kt. Waves 1 to 2 ft.

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

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ANZ533-092300
Chesapeake Bay from North Beach to Drum Point
359 AM EST Mon Feb 9 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST THIS MORNING

REST OF THE OVERNIGHT
NW winds 10 kt. Waves 2 ft.

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

TONIGHT
S winds around 5 kt. Waves flat.

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

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

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

WED NIGHT
NW winds 15 to 20 kt. Waves 2 ft.

THU
NW winds 15 to 20 kt...diminishing to 10 kt. Waves 1 to 2 ft.

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

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ANZ541-092300
Choptank River to Cambridge MD and the Little Choptank River
359 AM EST Mon Feb 9 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST THIS MORNING

REST OF THE OVERNIGHT
NW winds 10 kt. Waves 1 ft.

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

TONIGHT
S winds around 5 kt. Waves flat.

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

TUE NIGHT
SW winds 5 to 10 kt...becoming NW after midnight. Waves 1 ft.

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

WED NIGHT
NW winds 15 to 20 kt. Waves 2 ft.

THU
NW winds 15 to 20 kt...diminishing to 10 kt. Waves 1 to 2 ft.

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

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ANZ542-092300
Patuxent River to Broomes Island MD
359 AM EST Mon Feb 9 2026

REST OF THE OVERNIGHT
NW winds 10 kt. Waves 1 ft.

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

TONIGHT
S winds around 5 kt. Waves 1 ft or less.

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

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

WED
NW winds 10 to 15 kt. Waves 1 ft.

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

THU
NW winds 10 to 15 kt...diminishing to 5 kt after midnight. Waves 1 ft.

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

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ANZ534-092300
Chesapeake Bay from Drum Point to Smith Point
359 AM EST Mon Feb 9 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST THIS MORNING

REST OF THE OVERNIGHT
NW winds 15 kt with gusts to 20 kt. Waves 2 ft.

TODAY
NW winds 10 to 15 kt...diminishing to around 5 kt late. Waves 1 to 2 ft.

TONIGHT
S winds around 5 kt. Waves 1 ft or less.

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

TUE NIGHT
W winds 10 kt. Waves 1 ft.

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

WED NIGHT
NW winds 15 to 20 kt. Waves 3 ft.

THU
NW winds 15 to 20 kt...diminishing to 10 to 15 kt. Waves 2 to 3 ft.

FRI
N winds 5 to 10 kt. Waves 1 to 2 ft.

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ANZ543-092300
Tangier Sound and the inland waters surrounding Bloodsworth Island
359 AM EST Mon Feb 9 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST THIS MORNING

REST OF THE OVERNIGHT
N winds 15 kt with gusts to 20 kt. Waves 1 ft.

TODAY
NW winds 10 to 15 kt...diminishing to 5 kt late. Waves 1 ft.

TONIGHT
S winds around 5 kt. Waves flat.

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

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

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

WED NIGHT
NW winds 15 to 20 kt. Waves 2 ft.

THU
NW winds 15 to 20 kt...diminishing to 10 kt. Waves 1 to 2 ft.

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