National Weather Service Marine Forecast FZUS51 KLWX

FZUS51 KLWX 090258
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
958 PM EST Thu Jan 8 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.

ANZ500-090900
958 PM EST Thu Jan 8 2026

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

High pressure will move offshore tonight. A warm front approaches on Friday but will be overtaken by a cold front Friday night. This front will stall overhead as low pressure tracks along it on Saturday. A pair of cold fronts will push through Saturday night into Sunday. Small Craft Advisories may be needed for portions of the waters Friday afternoon and evening and Saturday afternoon and evening. Small Craft Advisories are likely Sunday into Monday with localized gale force gusts possible.

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ANZ535-090900
Tidal Potomac from Key Bridge to Indian Head
958 PM EST Thu Jan 8 2026

REST OF TONIGHT
SE winds 5 kt. Waves less than 1 ft.

FRI
S winds 5 to 10 kt. Waves 1 ft. A chance of rain.

FRI NIGHT
SW winds 5 to 10 kt...becoming NW late. Waves 1 ft. Rain. Vsby 1 to 3 NM.

SAT
E winds 5 to 10 kt. Waves 1 ft. Rain.

SAT NIGHT
W winds 5 to 10 kt. Waves 1 ft. Rain likely.

SUN
NW winds 15 to 20 kt with gusts to 30 kt. Waves 1 ft.

SUN NIGHT
W winds 15 to 20 kt. Gusts up to 30 kt... diminishing to 20 kt after midnight. Waves 1 ft.

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

TUE
SW winds around 5 kt. Waves 1 ft.

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ANZ536-090900
Tidal Potomac from Indian Head to Cobb Island
958 PM EST Thu Jan 8 2026

REST OF TONIGHT
SE winds 5 kt. Waves less than 1 ft.

FRI
S winds 5 to 10 kt. Waves 1 ft. A chance of rain.

FRI NIGHT
SW winds 5 to 10 kt...becoming NW late. Waves 1 ft. Rain. Vsby 1 to 3 NM.

SAT
NE winds 5 kt...becoming S in the afternoon. Waves 1 ft. Rain.

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

SUN
NW winds 15 to 20 kt with gusts to 25 kt. Waves 1 to 2 ft. A chance of rain.

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

MON
W winds 5 to 10 kt...becoming SW. Waves 1 ft.

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

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ANZ537-090900
Tidal Potomac from Cobb Island to Smith Point
958 PM EST Thu Jan 8 2026

REST OF TONIGHT
SE winds 5 kt. Waves less than 1 ft.

FRI
S winds 5 to 10 kt. Waves 1 ft. A chance of rain.

FRI NIGHT
SW winds 5 to 10 kt. Waves 1 ft. Rain. Patchy fog. Vsby 1 to 3 NM.

SAT
SE winds 5 to 10 kt. Waves 1 ft. Rain.

SAT NIGHT
SW winds 10 kt. Waves 1 ft. Rain.

SUN
NW winds 15 to 20 kt. Waves 2 ft. A chance of rain.

SUN NIGHT
NW winds 20 to 25 kt. Waves 3 ft.

MON
W winds 10 to 15 kt...becoming SW 5 to 10 kt. Waves 1 to 2 ft.

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

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ANZ530-090900
Chesapeake Bay north of Pooles Island
958 PM EST Thu Jan 8 2026

REST OF TONIGHT
SE winds around 5 kt. Waves 1 ft or less.

FRI
S winds 5 to 10 kt. Waves 1 ft. A chance of rain. Patchy fog. Vsby 1 to 3 NM.

FRI NIGHT
SW winds 5 to 10 kt...becoming N late. Waves 1 ft. Rain likely. Patchy fog. Vsby 1 to 3 NM.

SAT
NE winds 5 to 10 kt. Waves 1 ft. Rain.

SAT NIGHT
S winds 5 to 10 kt...becoming W after midnight. Waves 1 ft. Rain.

SUN
W winds 10 to 15 kt...increasing to 20 to 25 kt in the afternoon. Waves 1 to 2 ft.

SUN NIGHT
W winds 20 to 25 kt. Waves 2 ft.

MON
W winds 10 to 15 kt...becoming SW 5 to 10 kt. Waves 1 ft.

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

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ANZ531-090900
Chesapeake Bay from Pooles Island to Sandy Point
958 PM EST Thu Jan 8 2026

REST OF TONIGHT
SE winds 5 kt. Waves less than 1 ft.

FRI
S winds 5 to 10 kt. Waves 1 ft. A chance of rain. Patchy fog. Vsby 1 to 3 NM.

FRI NIGHT
SW winds 5 to 10 kt...becoming N late. Waves 1 ft. Rain likely. Patchy fog. Vsby 1 to 3 NM.

SAT
E winds 5 to 10 kt. Waves 1 ft. Rain.

SAT NIGHT
S winds 5 to 10 kt...becoming W after midnight. Waves 1 ft. Rain.

SUN
NW winds 10 to 15 kt...becoming W 20 to 25 kt in the afternoon. Waves 2 to 3 ft.

SUN NIGHT
W winds 25 to 30 kt. Waves 3 ft.

MON
W winds 15 to 20 kt...becoming SW 5 to 10 kt. Waves 1 to 2 ft.

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

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ANZ538-090900
Patapsco River including Baltimore Harbor
958 PM EST Thu Jan 8 2026

REST OF TONIGHT
SE winds around 5 kt. Waves flat.

FRI
S winds 5 to 10 kt. Waves 1 ft. A chance of rain. Vsby 1 to 3 NM.

FRI NIGHT
SW winds 5 to 10 kt...becoming N late. Waves 1 ft or less. Rain likely. Vsby 1 to 3 NM.

SAT
NE winds 5 kt. Waves less than 1 ft. Rain.

SAT NIGHT
S winds 5 kt...becoming W after midnight. Waves 1 ft. Rain likely.

SUN
W winds 15 to 20 kt with gusts to 25 kt. Waves 1 to 2 ft.

SUN NIGHT
W winds 15 to 20 kt with gusts to 25 kt. Waves 1 to 2 ft.

MON
W winds 10 to 15 kt...becoming SW 5 to 10 kt. Waves 1 ft or less.

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

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ANZ539-090900
Chester River to Queenstown MD
958 PM EST Thu Jan 8 2026

REST OF TONIGHT
SE winds 5 kt. Waves less than 1 ft.

FRI
S winds 5 to 10 kt. Waves 1 ft. A chance of rain. Vsby 1 to 3 NM.

FRI NIGHT
SW winds 5 to 10 kt...becoming N late. Waves 1 ft. Rain likely. Patchy fog. Vsby 1 to 3 NM.

SAT
E winds 5 to 10 kt. Waves 1 ft. Rain.

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

SUN
NW winds 10 to 15 kt...becoming W 20 to 25 kt in the afternoon. Waves 2 to 3 ft. A chance of rain.

SUN NIGHT
W winds 20 to 25 kt. Waves 3 ft.

MON
W winds 10 to 15 kt...becoming SW 5 to 10 kt. Waves 1 to 2 ft.

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

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ANZ532-090900
Chesapeake Bay from Sandy Point to North Beach
958 PM EST Thu Jan 8 2026

REST OF TONIGHT
SE winds 5 kt. Waves less than 1 ft.

FRI
S winds 5 to 10 kt. Waves 1 to 2 ft. A chance of rain.

FRI NIGHT
S winds 10 to 15 kt...becoming SW 5 to 10 kt after midnight, then becoming N late. Waves 1 to 2 ft. Rain likely. Patchy fog. Vsby 1 to 3 NM.

SAT
E winds 5 to 10 kt. Waves 1 ft. Rain.

SAT NIGHT
W winds 10 kt. Waves 1 ft. Rain.

SUN
NW winds 10 to 15 kt...becoming W 20 to 25 kt in the afternoon. Waves 2 to 3 ft. A chance of rain.

SUN NIGHT
W winds 25 to 30 kt. Waves 3 ft.

MON
W winds 15 to 20 kt...becoming SW 5 to 10 kt. Waves 1 to 2 ft.

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

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ANZ540-090900
Eastern Bay
958 PM EST Thu Jan 8 2026

REST OF TONIGHT
SE winds 5 kt. Waves less than 1 ft.

FRI
S winds 5 to 10 kt. Waves 1 ft. A chance of rain.

FRI NIGHT
SW winds 5 to 10 kt...becoming N late. Waves 1 ft. Rain likely. Patchy fog. Vsby 1 to 3 NM.

SAT
E winds 5 to 10 kt. Waves 1 ft. Rain.

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

SUN
NW winds 10 to 15 kt...becoming W 20 to 25 kt in the afternoon. Waves 1 to 2 ft. A chance of rain.

SUN NIGHT
W winds 20 to 25 kt. Waves 2 to 3 ft.

MON
W winds 10 to 15 kt...becoming SW 5 to 10 kt. Waves 1 to 2 ft.

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

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ANZ533-090900
Chesapeake Bay from North Beach to Drum Point
958 PM EST Thu Jan 8 2026

REST OF TONIGHT
SE winds 5 to 10 kt. Waves 1 ft or less.

FRI
S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain.

FRI NIGHT
SW winds 10 to 15 kt...becoming NW 5 to 10 kt late. Waves 1 to 2 ft. Rain. Patchy fog. Vsby 1 to 3 NM.

SAT
E winds 5 to 10 kt. Waves 1 to 2 ft. Rain.

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

SUN
NW winds 10 to 15 kt with gusts to 20 kt... increasing to 20 to 25 kt with gusts to 30 kt in the afternoon. Waves 2 to 3 ft. A chance of rain.

SUN NIGHT
W winds 25 to 30 kt. Waves 3 ft.

MON
W winds 15 to 20 kt...becoming SW 10 kt. Waves 2 to 3 ft... subsiding to 1 ft.

TUE
SW winds 10 to 15 kt. Waves 1 ft.

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ANZ541-090900
Choptank River to Cambridge MD and the Little Choptank River
958 PM EST Thu Jan 8 2026

REST OF TONIGHT
SE winds 5 kt. Waves less than 1 ft.

FRI
S winds 5 to 10 kt. Waves 1 ft. A chance of rain.

FRI NIGHT
SW winds 5 to 10 kt...becoming NW late. Waves 1 ft. Rain. Patchy fog. Vsby 1 to 3 NM.

SAT
E winds 5 to 10 kt. Waves 1 ft. Rain.

SAT NIGHT
SW winds 10 kt. Waves 1 ft. Rain.

SUN
NW winds 10 to 15 kt...increasing to 20 to 25 kt in the afternoon. Waves 2 to 3 ft. A chance of rain.

SUN NIGHT
W winds 25 to 30 kt. Waves 3 ft.

MON
W winds 15 to 20 kt...becoming SW 5 to 10 kt. Waves 1 to 2 ft.

TUE
SW winds 10 to 15 kt. Waves 1 ft.

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ANZ542-090900
Patuxent River to Broomes Island MD
958 PM EST Thu Jan 8 2026

REST OF TONIGHT
SE winds 5 kt. Waves less than 1 ft.

FRI
S winds 5 to 10 kt. Waves 1 ft. A chance of rain.

FRI NIGHT
SW winds 5 to 10 kt. Waves 1 ft. Rain. Patchy fog. Vsby 1 to 3 NM.

SAT
SE winds 5 to 10 kt. Waves 1 ft. Rain.

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

SUN
NW winds 10 to 15 kt. Gusts up to 25 kt in the afternoon. Waves 1 ft. A chance of rain.

SUN NIGHT
NW winds 15 to 20 kt with gusts to 25 kt. Waves 1 ft.

MON
W winds 10 to 15 kt...becoming SW 5 to 10 kt. Waves 1 ft.

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

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ANZ534-090900
Chesapeake Bay from Drum Point to Smith Point
958 PM EST Thu Jan 8 2026

REST OF TONIGHT
SE winds 5 to 10 kt. Waves 1 ft or less.

FRI
S winds 10 to 15 kt. Waves 2 ft. A chance of rain.

FRI NIGHT
SW winds 5 to 10 kt. Waves 1 to 2 ft. Rain. Patchy fog. Vsby 1 to 3 NM.

SAT
SE winds 10 to 15 kt. Waves 1 to 2 ft. Rain.

SAT NIGHT
S winds 10 to 15 kt...becoming W after midnight. Waves 2 ft. Rain.

SUN
NW winds 15 to 20 kt. Gusts up to 25 kt in the afternoon. Waves 2 to 3 ft. A chance of rain.

SUN NIGHT
NW winds 25 to 30 kt. Waves 4 ft.

MON
W winds 15 to 20 kt...becoming SW 10 to 15 kt. Waves 2 to 3 ft...subsiding to 1 to 2 ft.

TUE
SW winds 10 to 15 kt. Waves 2 ft.

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ANZ543-090900
Tangier Sound and the inland waters surrounding Bloodsworth Island
958 PM EST Thu Jan 8 2026

REST OF TONIGHT
SE winds 5 to 10 kt. Waves 1 ft or less.

FRI
S winds 10 to 15 kt. Waves 1 ft.

FRI NIGHT
S winds 10 to 15 kt. Waves 1 ft. Rain. Patchy fog. Vsby 1 to 3 NM.

SAT
S winds 10 to 15 kt. Waves 1 to 2 ft. Rain.

SAT NIGHT
S winds 10 to 15 kt...becoming W after midnight. Gusts up to 20 kt. Waves 1 to 2 ft. Rain.

SUN
NW winds 15 to 20 kt. Gusts up to 25 kt in the afternoon. Waves 1 to 2 ft. A chance of rain.

SUN NIGHT
NW winds 25 to 30 kt. Waves 3 ft.

MON
NW winds 20 to 25 kt...becoming W 10 to 15 kt in the afternoon, then becoming SW. Waves 1 to 2 ft.

TUE
SW winds 10 to 15 kt. Waves 1 ft.