National Weather Service Marine Forecast FZUS51 KLWX

FZUS51 KLWX 070834
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
334 AM EST Fri Nov 7 2025

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.

ANZ500-072300
334 AM EST Fri Nov 7 2025

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

High pressure will move offshore through Friday ahead of an area of low pressure set to pass to our north late Friday into Saturday. Gusty southwest winds ahead of an approaching cold front are expected Friday. A much stronger low pressure system will approach the area Sunday. Small Craft Advisories will likely be needed Sunday through Tuesday as a result, with gales possible Sunday night and Tuesday for portions of the waters.

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ANZ535-072300
Tidal Potomac from Key Bridge to Indian Head
334 AM EST Fri Nov 7 2025

SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EST THIS MORNING THROUGH LATE TONIGHT

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

TODAY
S winds 10 to 15 kt. Gusts up to 20 kt... increasing to 30 kt in the afternoon. Waves 1 to 2 ft.

TONIGHT
SW winds 5 to 10 kt. Gusts up to 25 kt. Waves 1 ft. Showers likely. Vsby 1 to 3 NM.

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

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

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

SUN NIGHT
NW winds 5 to 10 kt. Waves 1 ft. A chance of rain.

MON
NW winds 10 to 15 kt. Waves 1 ft. A chance of rain and snow in the evening.

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

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ANZ536-072300
Tidal Potomac from Indian Head to Cobb Island
334 AM EST Fri Nov 7 2025

SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EST THIS MORNING THROUGH LATE TONIGHT

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

TODAY
S winds 5 to 10 kt. Gusts up to 20 kt... increasing to 25 kt in the afternoon. Waves 1 ft.

TONIGHT
SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. Showers likely.

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

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

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

SUN NIGHT
NW winds 10 to 15 kt. Waves 1 ft. A chance of rain.

MON
NW winds 15 to 20 kt. Waves 1 to 2 ft. A chance of rain and snow in the evening.

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

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ANZ537-072300
Tidal Potomac from Cobb Island to Smith Point
334 AM EST Fri Nov 7 2025

SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EST THIS MORNING THROUGH LATE TONIGHT

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

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

TONIGHT
S winds 10 to 15 kt...becoming SW late. Gusts up to 20 kt. Waves 2 ft. A chance of showers.

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

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

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

SUN NIGHT
W winds 10 to 15 kt...becoming NW after midnight. Gusts up to 20 kt. Waves 1 to 2 ft. Rain likely.

MON
NW winds 10 to 15 kt...increasing to 20 to 25 kt. Waves 2 to 3 ft. A chance of rain and snow in the evening.

TUE
W winds 15 to 20 kt...becoming SW. Waves 2 to 3 ft.

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ANZ530-072300
Chesapeake Bay north of Pooles Island
334 AM EST Fri Nov 7 2025

SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EST THIS MORNING THROUGH LATE TONIGHT

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

TODAY
S winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft.

TONIGHT
SW winds 10 to 15 kt with gusts to 25 kt... diminishing to 5 to 10 kt late. Waves 2 ft. Showers likely. Vsby 1 to 3 NM.

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

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

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

SUN NIGHT
NW winds 10 to 15 kt. Waves 1 ft. Rain likely.

MON
NW winds 20 to 25 kt. Waves 1 to 2 ft. A chance of rain in the evening.

TUE
W winds 20 to 25 kt...becoming SW 15 to 20 kt after midnight. Waves 2 ft.

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ANZ531-072300
Chesapeake Bay from Pooles Island to Sandy Point
334 AM EST Fri Nov 7 2025

SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EST THIS MORNING THROUGH LATE TONIGHT

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

TODAY
S winds 15 to 20 kt. Gusts up to 20 kt... increasing to 25 kt in the afternoon. Waves 2 to 3 ft.

TONIGHT
S winds 10 to 15 kt with gusts to 25 kt... becoming SW late. Waves 2 to 3 ft. Showers likely. Vsby 1 to 3 NM.

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

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

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

SUN NIGHT
NW winds 15 to 20 kt. Waves 2 ft. Rain likely.

MON
NW winds 20 to 25 kt. Waves 2 to 3 ft. A chance of rain in the evening.

TUE
W winds 20 to 25 kt...becoming SW 15 to 20 kt after midnight. Waves 3 ft.

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ANZ538-072300
Patapsco River including Baltimore Harbor
334 AM EST Fri Nov 7 2025

SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EST THIS MORNING THROUGH LATE TONIGHT

REST OF THE OVERNIGHT
S winds 5 kt. Waves flat.

TODAY
S winds 5 to 10 kt...increasing to 10 to 15 kt in the afternoon. Gusts up to 20 kt. Waves 1 ft.

TONIGHT
SW winds 10 to 15 kt...becoming W 5 to 10 kt late. Gusts up to 20 kt. Waves 1 ft. Showers likely. Vsby 1 to 3 NM.

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

SAT NIGHT
E winds around 5 kt. Waves flat.

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

SUN NIGHT
NW winds 5 to 10 kt. Waves 1 ft. Rain likely.

MON
NW winds 10 to 15 kt. Waves 1 ft. A chance of rain and snow in the evening.

TUE
W winds 15 to 20 kt...becoming SW 10 kt after midnight. Waves 1 to 2 ft.

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ANZ539-072300
Chester River to Queenstown MD
334 AM EST Fri Nov 7 2025

SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EST THIS MORNING THROUGH LATE TONIGHT

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

TODAY
S winds 10 to 15 kt. Gusts up to 20 kt. Waves 2 ft.

TONIGHT
S winds 10 to 15 kt with gusts to 25 kt... becoming SW late. Waves 2 ft. Showers likely.

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

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

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

SUN NIGHT
NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Rain likely.

MON
NW winds 15 to 20 kt. Waves 2 to 3 ft. A chance of rain in the evening.

TUE
W winds 15 to 20 kt...becoming SW after midnight. Waves 2 to 3 ft.

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ANZ532-072300
Chesapeake Bay from Sandy Point to North Beach
334 AM EST Fri Nov 7 2025

SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EST THIS MORNING THROUGH LATE TONIGHT

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

TODAY
S winds 15 to 20 kt. Gusts up to 20 kt... increasing to 25 kt in the afternoon. Waves 2 to 3 ft.

TONIGHT
S winds 15 to 20 kt with gusts to 25 kt... becoming SW 10 to 15 kt late. Waves 2 to 3 ft. Showers likely.

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

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

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

SUN NIGHT
NW winds 15 to 20 kt. Waves 2 ft. Rain likely.

MON
NW winds 20 to 25 kt. Waves 2 to 3 ft. A chance of rain and snow in the evening.

TUE
W winds 25 to 30 kt...becoming SW 15 to 20 kt. Waves 3 ft.

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ANZ540-072300
Eastern Bay
334 AM EST Fri Nov 7 2025

SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EST THIS MORNING THROUGH LATE TONIGHT

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

TODAY
S winds 10 to 15 kt. Gusts up to 20 kt... increasing to 25 kt in the afternoon. Waves 1 to 2 ft.

TONIGHT
S winds 10 to 15 kt with gusts to 25 kt... becoming SW late. Waves 2 ft. Showers likely.

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

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

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

SUN NIGHT
NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. Rain likely.

MON
NW winds 20 to 25 kt. Waves 1 to 2 ft. A chance of rain in the evening.

TUE
W winds 20 to 25 kt...becoming SW 15 to 20 kt after midnight. Waves 2 to 3 ft.

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ANZ533-072300
Chesapeake Bay from North Beach to Drum Point
334 AM EST Fri Nov 7 2025

SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EST THIS MORNING THROUGH LATE TONIGHT

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

TODAY
S winds 10 to 15 kt. Gusts up to 20 kt... increasing to 25 kt in the afternoon. Waves 2 to 3 ft.

TONIGHT
S winds 15 to 20 kt with gusts to 25 kt... becoming SW 10 to 15 kt late. Waves 2 to 3 ft. Showers likely.

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

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

SUN
S winds 10 kt. Waves 2 ft. A chance of rain.

SUN NIGHT
W winds 15 to 20 kt...becoming NW after midnight. Waves 2 to 3 ft. Rain likely.

MON
NW winds 20 to 25 kt. Waves 2 to 3 ft...building to 4 ft. A chance of rain and snow in the evening.

TUE
W winds 25 to 30 kt...becoming SW 20 to 25 kt after midnight. Waves 3 ft.

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ANZ541-072300
Choptank River to Cambridge MD and the Little Choptank River
334 AM EST Fri Nov 7 2025

SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EST THIS MORNING THROUGH LATE TONIGHT

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

TODAY
S winds 10 to 15 kt. Gusts up to 20 kt... increasing to 25 kt late. Waves 2 ft.

TONIGHT
S winds 15 to 20 kt with gusts to 25 kt... becoming SW 10 to 15 kt late. Waves 2 ft. Showers likely.

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

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

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

SUN NIGHT
W winds 10 to 15 kt...becoming NW 15 to 20 kt after midnight. Waves 2 ft. Rain likely.

MON
NW winds 20 to 25 kt. Waves 2 to 3 ft. A chance of rain in the evening.

TUE
W winds 20 to 25 kt...becoming SW 15 to 20 kt after midnight. Waves 3 ft.

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ANZ542-072300
Patuxent River to Broomes Island MD
334 AM EST Fri Nov 7 2025

SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EST THIS MORNING THROUGH LATE TONIGHT

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

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

TONIGHT
S winds 10 to 15 kt...becoming SW 5 to 10 kt late. Gusts up to 20 kt. Waves 1 ft. Showers likely.

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

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

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

SUN NIGHT
NW winds 10 to 15 kt. Gusts up to 20 kt. Waves 1 ft. Rain likely.

MON
NW winds 15 to 20 kt. Waves 1 ft. A chance of rain and snow in the evening.

TUE
W winds 15 to 20 kt...becoming SW 10 to 15 kt after midnight. Waves 1 ft.

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ANZ534-072300
Chesapeake Bay from Drum Point to Smith Point
334 AM EST Fri Nov 7 2025

SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EST THIS MORNING THROUGH LATE TONIGHT

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

TODAY
S winds 10 to 15 kt. Gusts up to 20 kt... increasing to 25 kt late. Waves 2 to 3 ft.

TONIGHT
S winds 15 to 20 kt...becoming SW 10 to 15 kt late. Gusts up to 25 kt. Waves 3 ft. A chance of showers.

SAT
NW winds 5 to 10 kt. Waves 1 to 2 ft.

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

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

SUN NIGHT
W winds 10 to 15 kt...becoming NW 15 to 20 kt after midnight. Waves 2 to 3 ft. Rain likely.

MON
NW winds 15 to 20 kt...increasing to 25 to 30 kt. Waves 3 ft...building to 5 ft. A chance of rain through the night. A chance of snow after midnight.

TUE
W winds 25 to 30 kt...becoming SW 20 to 25 kt after midnight. Waves 4 ft.

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ANZ543-072300
Tangier Sound and the inland waters surrounding Bloodsworth Island
334 AM EST Fri Nov 7 2025

SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EST THIS MORNING THROUGH LATE TONIGHT

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

TODAY
S winds 10 to 15 kt. Gusts up to 20 kt... increasing to 25 kt late. Waves 2 ft.

TONIGHT
S winds 15 kt...becoming SW late. Gusts up to 25 kt. Waves 2 ft. A chance of showers.

SAT
W winds 10 to 15 kt...becoming NW 5 kt in the afternoon. Waves 1 ft.

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

SUN
SE winds 10 to 15 kt...becoming S in the afternoon. Waves 1 ft. A chance of rain.

SUN NIGHT
SW winds 10 to 15 kt...becoming NW 15 to 20 kt after midnight. Waves 1 to 2 ft. Rain likely with a chance of tstms.

MON
NW winds 15 to 20 kt...increasing to 25 to 30 kt. Waves 2 to 3 ft. A chance of rain through the night. A chance of snow after midnight.

TUE
W winds 25 to 30 kt...becoming SW 20 to 25 kt after midnight. Waves 3 ft.

Winds and waves higher and visibilities lower in and near tstms.