National Weather Service Marine Forecast FZUS51 KLWX

FZUS51 KLWX 262100
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
400 PM EST Thu Feb 26 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.

ANZ500-270900
400 PM EST Thu Feb 26 2026

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

An area of low pressure will pass to the south tonight. High pressure will return Friday and Saturday with a strong cold front set to cross the waters Sunday. Multiple waves of low pressure will follow this system early next week. Small Craft Advisories may be needed late Saturday into early next week.

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ANZ535-270900
Tidal Potomac from Key Bridge to Indian Head
400 PM EST Thu Feb 26 2026

REST OF THIS AFTERNOON
NE winds 5 kt. Waves less than 1 ft. Rain likely.

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

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

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

SAT
S winds around 5 kt. Waves 1 ft.

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

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

MON
NE winds around 5 kt. Waves 1 ft. A chance of snow.

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ANZ536-270900
Tidal Potomac from Indian Head to Cobb Island
400 PM EST Thu Feb 26 2026

REST OF THIS AFTERNOON
NE winds 5 kt. Waves less than 1 ft. Rain likely. Patchy fog. Vsby 1 to 3 NM.

TONIGHT
NE winds around 5 kt. Waves 1 ft or less. Patchy fog. Vsby 1 to 3 NM.

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

FRI NIGHT
S winds 5 kt. Waves less than 1 ft.

SAT
S winds around 5 kt. Waves 1 ft.

SAT NIGHT
S winds 5 kt. Waves less than 1 ft.

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

MON
NE winds 5 to 10 kt. Waves 1 ft. A chance of snow. A chance of freezing rain after midnight.

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ANZ537-270900
Tidal Potomac from Cobb Island to Smith Point
400 PM EST Thu Feb 26 2026

REST OF THIS AFTERNOON
NE winds 10 kt. Waves 1 ft. Rain likely. Patchy fog. Vsby 1 to 3 NM.

TONIGHT
NE winds around 5 kt. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.

FRI
E winds around 5 kt. Waves flat.

FRI NIGHT
SE winds 5 kt. Waves flat.

SAT
S winds around 5 kt. Waves flat.

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

SUN
NW winds 5 to 10 kt...becoming NE 10 to 15 kt. Waves 1 to 2 ft.

MON
NE winds 5 to 10 kt. Waves 1 to 2 ft. A chance of snow. A chance of rain and freezing rain through the night.

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ANZ530-270900
Chesapeake Bay north of Pooles Island
400 PM EST Thu Feb 26 2026

REST OF THIS AFTERNOON
NE winds 5 kt. Waves flat. Rain likely.

TONIGHT
Light winds. Waves flat.

FRI
S winds around 5 kt. Waves flat.

FRI NIGHT
S winds around 5 kt. Waves flat.

SAT
S winds around 5 kt. Waves flat.

SAT NIGHT
NW winds around 5 kt. Waves flat.

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

MON
NE winds 5 to 10 kt. Waves 1 ft or less. A chance of snow through the day.

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ANZ531-270900
Chesapeake Bay from Pooles Island to Sandy Point
400 PM EST Thu Feb 26 2026

REST OF THIS AFTERNOON
NE winds 5 kt. Waves flat. Rain likely.

TONIGHT
N winds around 5 kt. Waves flat.

FRI
SE winds around 5 kt. Waves flat.

FRI NIGHT
S winds 5 kt. Waves less than 1 ft.

SAT
S winds 5 kt. Waves flat.

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

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

MON
NE winds 5 to 10 kt. Waves 1 ft. A chance of snow.

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ANZ538-270900
Patapsco River including Baltimore Harbor
400 PM EST Thu Feb 26 2026

REST OF THIS AFTERNOON
NE winds 5 kt. Waves flat. Rain likely.

TONIGHT
Light winds. Waves flat.

FRI
SE winds around 5 kt. Waves flat.

FRI NIGHT
S winds 5 kt. Waves flat.

SAT
S winds around 5 kt. Waves flat.

SAT NIGHT
E winds around 5 kt. Waves flat.

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

MON
NE winds 5 kt. Waves less than 1 ft. A chance of snow.

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ANZ539-270900
Chester River to Queenstown MD
400 PM EST Thu Feb 26 2026

REST OF THIS AFTERNOON
E winds 5 kt. Waves flat. Rain likely.

TONIGHT
NE winds around 5 kt. Waves flat.

FRI
SE winds around 5 kt. Waves flat.

FRI NIGHT
S winds 5 kt. Waves flat.

SAT
S winds 5 kt. Waves flat.

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

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

MON
NE winds 5 to 10 kt. Waves 1 ft. A chance of snow.

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ANZ532-270900
Chesapeake Bay from Sandy Point to North Beach
400 PM EST Thu Feb 26 2026

REST OF THIS AFTERNOON
NE winds 5 kt. Waves less than 1 ft. Rain likely.

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

FRI
SE winds around 5 kt. Waves flat.

FRI NIGHT
S winds 5 kt. Waves less than 1 ft.

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

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

SUN
N winds 10 to 15 kt...becoming NE after midnight. Waves 1 to 2 ft.

MON
NE winds 10 to 15 kt. Waves 1 ft. A chance of snow.

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ANZ540-270900
Eastern Bay
400 PM EST Thu Feb 26 2026

REST OF THIS AFTERNOON
NE winds 5 kt. Waves flat. Rain likely.

TONIGHT
NE winds around 5 kt. Waves flat.

FRI
S winds around 5 kt. Waves flat.

FRI NIGHT
S winds 5 kt. Waves flat.

SAT
S winds around 5 kt. Waves flat.

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

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

MON
NE winds 5 to 10 kt. Waves 1 ft. A chance of snow.

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ANZ533-270900
Chesapeake Bay from North Beach to Drum Point
400 PM EST Thu Feb 26 2026

REST OF THIS AFTERNOON
NE winds 10 kt. Waves 1 ft. Rain likely.

TONIGHT
N winds around 5 kt. Waves 1 ft or less. Patchy fog. Vsby 1 to 3 NM.

FRI
SE winds 5 kt. Waves flat. Patchy fog. Vsby 1 to 3 NM.

FRI NIGHT
S winds 5 kt. Waves less than 1 ft.

SAT
S winds 5 kt. Waves flat.

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

SUN
NW winds 10 to 15 kt...becoming NE. Waves 2 ft.

MON
NE winds 10 to 15 kt. Waves 1 to 2 ft. A chance of snow.

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ANZ541-270900
Choptank River to Cambridge MD and the Little Choptank River
400 PM EST Thu Feb 26 2026

REST OF THIS AFTERNOON
NE winds 5 kt. Waves less than 1 ft. Rain likely.

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

FRI
S winds around 5 kt. Waves flat.

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

SAT
S winds around 5 kt. Waves flat.

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

SUN
NW winds 10 to 15 kt...becoming NE. Waves 1 ft.

MON
NE winds 10 to 15 kt. Waves 1 ft. A chance of snow.

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ANZ542-270900
Patuxent River to Broomes Island MD
400 PM EST Thu Feb 26 2026

REST OF THIS AFTERNOON
NE winds 5 kt. Waves less than 1 ft. Rain likely.

TONIGHT
NE winds around 5 kt. Waves 1 ft or less. Patchy fog. Vsby 1 to 3 NM.

FRI
E winds around 5 kt. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.

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

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

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

SUN
NW winds 5 to 10 kt...becoming NE. Waves 1 ft.

MON
NE winds 5 to 10 kt. Waves 1 ft. A chance of snow.

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ANZ534-270900
Chesapeake Bay from Drum Point to Smith Point
400 PM EST Thu Feb 26 2026

REST OF THIS AFTERNOON
NE winds 10 kt. Waves 1 ft. Rain likely. Patchy fog. Vsby 1 to 3 NM.

TONIGHT
NE winds 5 to 10 kt. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.

FRI
E winds 5 kt. Waves flat.

FRI NIGHT
SE winds 5 kt. Waves less than 1 ft.

SAT
NE winds 5 kt. Waves flat.

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

SUN
NW winds 10 to 15 kt...becoming NE. Waves 1 to 2 ft.

MON
NE winds 10 to 15 kt. Waves 1 to 2 ft. A chance of snow. A chance of rain through the night.

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ANZ543-270900
Tangier Sound and the inland waters surrounding Bloodsworth Island
400 PM EST Thu Feb 26 2026

REST OF THIS AFTERNOON
NE winds 10 kt. Waves 1 ft. Rain likely. Patchy fog. Vsby 1 to 3 NM.

TONIGHT
NE winds 5 to 10 kt. Waves 1 ft or less. Patchy fog. Vsby 1 to 3 NM.

FRI
N winds 5 kt. Waves flat.

FRI NIGHT
SE winds 5 kt. Waves flat.

SAT
NW winds 5 kt. Waves flat.

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

SUN
W winds 5 to 10 kt...becoming N 10 to 15 kt. Waves 1 ft.

MON
NE winds 10 to 15 kt. Waves 1 ft. A chance of snow.