National Weather Service Marine Forecast FZUS51 KLWX

FZUS51 KLWX 070558
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1258 AM EST Wed Jan 7 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.

ANZ500-072100
1258 AM EST Wed Jan 7 2026

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

An area of low pressure will pass by north of the area through Wednesday. High pressure will expand across the area Wednesday night through Friday. Small Craft Advisories may be needed again on Friday.

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ANZ535-072100
Tidal Potomac from Key Bridge to Indian Head
1258 AM EST Wed Jan 7 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING THROUGH THIS AFTERNOON

OVERNIGHT
SW winds 5 to 10 kt. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.

WED
W winds 5 to 10 kt. Gusts up to 20 kt in the late morning and afternoon. Waves 1 ft.

WED NIGHT
NW winds around 5 kt. Waves 1 ft.

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

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

FRI
S winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. A chance of rain.

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

SAT
S winds 10 to 15 kt...becoming W after midnight. Waves 1 ft. Rain.

SUN
W winds 15 to 20 kt. Waves 1 ft. A chance of rain in the morning.

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ANZ536-072100
Tidal Potomac from Indian Head to Cobb Island
1258 AM EST Wed Jan 7 2026

OVERNIGHT
SW winds 10 kt. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.

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

WED NIGHT
NW winds around 5 kt. Waves 1 ft.

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

THU NIGHT
SE winds 5 to 10 kt. Waves 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 likely.

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

SUN
NW winds 15 to 20 kt. Waves 1 to 2 ft. A chance of rain through the day.

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ANZ537-072100
Tidal Potomac from Cobb Island to Smith Point
1258 AM EST Wed Jan 7 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING

OVERNIGHT
SW winds 15 kt with gusts to 20 kt. Waves 2 ft.

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

WED NIGHT
NW winds around 5 kt. Waves 1 ft or less.

THU
NE winds around 5 kt. Waves flat.

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

FRI
S winds 10 kt. Waves 1 ft.

FRI NIGHT
SW winds 10 kt. Waves 1 ft. Rain likely.

SAT
S winds 15 to 20 kt...becoming SW after midnight. Waves 1 to 2 ft. Rain.

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

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ANZ530-072100
Chesapeake Bay north of Pooles Island
1258 AM EST Wed Jan 7 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING THROUGH THIS AFTERNOON

OVERNIGHT
SW winds 10 kt. Waves 1 ft. Areas of fog. Vsby 1 NM or less.

WED
W winds 10 to 15 kt with gusts to 25 kt... becoming NW 5 to 10 kt with gusts to 20 kt late. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.

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

THU
W winds around 5 kt. Waves 1 ft or less.

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

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 likely.

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

SUN
W winds 15 to 20 kt. Waves 1 to 2 ft. A chance of rain through the day.

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ANZ531-072100
Chesapeake Bay from Pooles Island to Sandy Point
1258 AM EST Wed Jan 7 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING THROUGH THIS AFTERNOON

OVERNIGHT
SW winds 10 kt. Waves 1 ft. Areas of fog. Vsby 1 NM or less.

WED
W winds 10 to 15 kt with gusts to 25 kt... becoming NW with gusts to 20 kt late. Waves 2 ft.

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

THU
SW winds around 5 kt. Waves flat.

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

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

FRI NIGHT
S winds 5 to 10 kt. Waves 1 ft. Rain likely.

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

SUN
W winds 20 to 25 kt. Waves 2 to 3 ft. A chance of rain through the day.

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ANZ538-072100
Patapsco River including Baltimore Harbor
1258 AM EST Wed Jan 7 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING THROUGH THIS AFTERNOON

OVERNIGHT
W winds 5 kt. Waves less than 1 ft. Areas of fog. Vsby 1 NM or less.

WED
W winds 5 to 10 kt. Gusts up to 25 kt in the late morning and afternoon. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.

WED NIGHT
NW winds around 5 kt. Waves 1 ft or less.

THU
SW winds around 5 kt. Waves flat.

THU NIGHT
SE winds around 5 kt. Waves flat.

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 or less. Rain likely.

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

SUN
W winds 10 to 15 kt. Waves 1 ft. A chance of rain through the day.

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ANZ539-072100
Chester River to Queenstown MD
1258 AM EST Wed Jan 7 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING THROUGH THIS AFTERNOON

OVERNIGHT
SW winds 10 kt. Waves 1 ft. Areas of dense fog. Vsby 1 NM or less.

WED
W winds 5 to 10 kt. Gusts up to 25 kt in the late morning and afternoon. Waves 2 ft.

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

THU
SW winds around 5 kt. Waves flat.

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

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

FRI NIGHT
S winds 5 to 10 kt. Waves 1 ft. Rain likely.

SAT
S winds 10 to 15 kt...becoming SW after midnight. Waves 1 to 2 ft. Rain.

SUN
NW winds 15 to 20 kt. Waves 2 to 3 ft. A chance of rain through the day.

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ANZ532-072100
Chesapeake Bay from Sandy Point to North Beach
1258 AM EST Wed Jan 7 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING THROUGH THIS AFTERNOON

OVERNIGHT
SW winds 10 kt. Waves 2 ft. Patchy fog. Vsby 1 NM or less.

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

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

THU
SW winds 5 kt. Waves flat.

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

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

FRI NIGHT
S winds 10 to 15 kt. Waves 1 to 2 ft. Rain likely.

SAT
S winds 5 to 10 kt...increasing to 15 to 20 kt in the afternoon and evening, then becoming W after midnight. Waves 2 to 3 ft. Rain.

SUN
NW winds 20 to 25 kt. Waves 2 to 3 ft. A chance of rain through the day.

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ANZ540-072100
Eastern Bay
1258 AM EST Wed Jan 7 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING THROUGH THIS AFTERNOON

OVERNIGHT
SW winds 10 kt. Waves 1 ft. Areas of fog. Vsby 1 NM or less.

WED
W winds 5 to 10 kt. Gusts up to 20 kt in the late morning and afternoon. Waves 1 ft.

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

THU
SW winds around 5 kt. Waves flat.

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

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

FRI NIGHT
S winds 5 to 10 kt. Waves 1 ft. Rain likely.

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

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

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ANZ533-072100
Chesapeake Bay from North Beach to Drum Point
1258 AM EST Wed Jan 7 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING

OVERNIGHT
SW winds 15 kt with gusts to 20 kt. Waves 2 ft. Patchy fog. Vsby 1 to 3 NM.

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

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

THU
SW winds 5 kt. Waves flat.

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

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

FRI NIGHT
S winds 10 to 15 kt. Waves 1 to 2 ft. Rain likely.

SAT
S winds 15 to 20 kt...becoming SW after midnight. Waves 2 to 3 ft. Rain.

SUN
NW winds 15 to 20 kt. Waves 2 to 3 ft. A chance of rain through the day.

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ANZ541-072100
Choptank River to Cambridge MD and the Little Choptank River
1258 AM EST Wed Jan 7 2026

OVERNIGHT
SW winds 15 kt. Waves 1 ft. Patchy fog. Vsby 1 NM or less.

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

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

THU
W winds around 5 kt. Waves flat.

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

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

FRI NIGHT
S winds 10 to 15 kt. Waves 1 ft. Rain likely.

SAT
S winds 15 to 20 kt...becoming SW after midnight. Waves 1 to 2 ft. Rain.

SUN
NW winds 20 to 25 kt. Waves 2 to 3 ft. A chance of rain through the day.

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ANZ542-072100
Patuxent River to Broomes Island MD
1258 AM EST Wed Jan 7 2026

OVERNIGHT
SW winds 10 kt. Waves 1 ft.

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

WED NIGHT
NW winds around 5 kt. Waves 1 ft.

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

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

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

FRI NIGHT
S winds 5 to 10 kt. Waves 1 ft. Rain likely.

SAT
S winds 10 to 15 kt...becoming SW after midnight. Waves 1 ft. Rain.

SUN
NW winds 10 to 15 kt. Waves 1 ft. A chance of rain through the day.

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ANZ534-072100
Chesapeake Bay from Drum Point to Smith Point
1258 AM EST Wed Jan 7 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING

OVERNIGHT
SW winds 15 kt with gusts to 20 kt. Waves 2 ft.

WED
W winds 10 to 15 kt...becoming NW 5 to 10 kt late. Waves 2 ft.

WED NIGHT
NW winds 5 kt. Waves less than 1 ft.

THU
NE winds around 5 kt. Waves flat.

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

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

FRI NIGHT
S winds 10 to 15 kt. Waves 2 ft. Rain likely.

SAT
S winds 15 to 20 kt...becoming SW after midnight. Waves 2 to 3 ft. Rain.

SUN
NW winds 20 to 25 kt. Waves 2 to 3 ft. A chance of rain.

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ANZ543-072100
Tangier Sound and the inland waters surrounding Bloodsworth Island
1258 AM EST Wed Jan 7 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING

OVERNIGHT
SW winds 15 kt with gusts to 20 kt. Waves 2 ft. Patchy fog. Vsby 1 to 3 NM.

WED
W winds 10 to 15 kt...becoming NW 5 to 10 kt late. Waves 1 ft.

WED NIGHT
NW winds around 5 kt. Waves 1 ft or less.

THU
NW winds around 5 kt. Waves flat.

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

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

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

SAT
S winds 15 to 20 kt. Waves 2 ft. Rain.

SUN
NW winds 20 to 25 kt. Waves 2 ft. A chance of rain.