FZUS51 KLWX 082034
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
433 PM EDT Wed Oct 8 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.

ANZ500-090800
433 PM EDT Wed Oct 8 2025

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

A strong cold front will sag south and east of the area through this evening. High pressure will build in from the north tonight into Thursday, then remain north of the region through Friday. Coastal low pressure will develop along the southeast U.S. coast this weekend before lifting north toward the Delmarva early next week. Small Craft Advisories will likely be needed this weekend, with gales possible at times Saturday night through Monday.

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ANZ535-090800
Tidal Potomac from Key Bridge to Indian Head
433 PM EDT Wed Oct 8 2025

SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT

REST OF THIS AFTERNOON
N winds 15 kt with gusts to 25 kt. Waves 1 ft.

TONIGHT
N winds 5 to 10 kt with gusts to 25 kt. Waves 1 ft.

THU
NE winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.

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

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

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

SAT
NE winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night.

SUN
N winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers.

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ANZ536-090800
Tidal Potomac from Indian Head to Cobb Island
433 PM EDT Wed Oct 8 2025

SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT

REST OF THIS AFTERNOON
N winds 15 kt with gusts to 25 kt. Waves 2 ft.

TONIGHT
N winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft.

THU
NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.

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

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

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

SAT
NE winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers after midnight.

SUN
N winds 15 to 20 kt. Waves 2 ft. A chance of showers.

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ANZ537-090800
Tidal Potomac from Cobb Island to Smith Point
433 PM EDT Wed Oct 8 2025

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON

REST OF THIS AFTERNOON
N winds 20 kt with gusts to 25 kt. Waves 3 ft.

TONIGHT
N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.

THU
NE winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft.

THU NIGHT
NE winds 10 to 15 kt with gusts to 20 kt. Waves 3 ft.

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

FRI NIGHT
E winds 5 to 10 kt. Waves 1 to 2 ft.

SAT
NE winds 10 to 15 kt...increasing to 20 to 25 kt. Waves 2 ft...building to 4 ft. A chance of showers.

SUN
N winds 20 to 25 kt. Waves 5 ft. A chance of showers.

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ANZ530-090800
Chesapeake Bay north of Pooles Island
433 PM EDT Wed Oct 8 2025

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON

REST OF THIS AFTERNOON
N winds 15 kt with gusts to 25 kt. Waves 2 ft.

TONIGHT
N winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft.

THU
N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.

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

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

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

SAT
NE winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers through the night.

SUN
NE winds 15 to 20 kt. Waves 2 ft. A chance of showers.

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ANZ531-090800
Chesapeake Bay from Pooles Island to Sandy Point
433 PM EDT Wed Oct 8 2025

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON

REST OF THIS AFTERNOON
N winds 20 kt with gusts to 25 kt. Waves 3 ft.

TONIGHT
N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.

THU
N winds 15 to 20 kt. Waves 2 ft.

THU NIGHT
NE winds 10 kt. Waves 1 to 2 ft.

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

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

SAT
NE winds 15 to 20 kt. Waves 1 ft...building to 3 ft. A chance of showers through the night.

SUN
N winds 20 to 25 kt. Waves 3 ft. A chance of showers.

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ANZ538-090800
Patapsco River including Baltimore Harbor
433 PM EDT Wed Oct 8 2025

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON

REST OF THIS AFTERNOON
N winds 15 kt with gusts to 25 kt. Waves 1 ft.

TONIGHT
N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.

THU
N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.

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

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

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

SAT
NE winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers through the night.

SUN
N winds 15 to 20 kt. Waves 2 ft. A chance of showers.

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ANZ539-090800
Chester River to Queenstown MD
433 PM EDT Wed Oct 8 2025

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON

REST OF THIS AFTERNOON
N winds 15 kt with gusts to 25 kt. Waves 2 ft.

TONIGHT
N winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.

THU
NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.

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

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

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

SAT
NE winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers through the night.

SUN
N winds 15 to 20 kt. Waves 3 ft. A chance of showers.

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ANZ532-090800
Chesapeake Bay from Sandy Point to North Beach
433 PM EDT Wed Oct 8 2025

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON

REST OF THIS AFTERNOON
N winds 20 kt with gusts to 25 kt. Waves 3 ft.

TONIGHT
N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.

THU
N winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft.

THU NIGHT
NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.

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

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

SAT
NE winds 20 to 25 kt. Waves 1 to 2 ft... building to 3 ft. A chance of showers through the night.

SUN
NE winds 25 to 30 kt...becoming N 20 to 25 kt after midnight. Waves 4 ft. A chance of showers.

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ANZ540-090800
Eastern Bay
433 PM EDT Wed Oct 8 2025

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON

REST OF THIS AFTERNOON
N winds 20 kt with gusts to 25 kt. Waves 2 ft.

TONIGHT
N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.

THU
N winds 15 to 20 kt...becoming NE 10 kt late. Waves 1 to 2 ft.

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

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

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

SAT
NE winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers through the night.

SUN
N winds 20 to 25 kt. Waves 3 ft. A chance of showers.

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ANZ533-090800
Chesapeake Bay from North Beach to Drum Point
433 PM EDT Wed Oct 8 2025

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON

REST OF THIS AFTERNOON
N winds 25 kt with gusts to 30 kt. Waves 4 ft.

TONIGHT
N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft.

THU
NE winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.

THU NIGHT
NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.

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

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

SAT
NE winds 10 to 15 kt...increasing to 20 to 25 kt. Waves 2 ft...building to 4 ft. A chance of showers through the night.

SUN
NE winds 25 to 30 kt...becoming N after midnight. Waves 5 ft. A chance of showers.

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ANZ541-090800
Choptank River to Cambridge MD and the Little Choptank River
433 PM EDT Wed Oct 8 2025

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON

REST OF THIS AFTERNOON
N winds 20 kt with gusts to 25 kt. Waves 2 ft.

TONIGHT
N winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.

THU
NE winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.

THU NIGHT
NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.

FRI
E winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves 1 ft.

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

SAT
NE winds 20 to 25 kt. Waves 1 to 2 ft... building to 3 ft after midnight. A chance of showers through the night.

SUN
NE winds 20 to 25 kt...becoming N after midnight. Waves 3 ft. A chance of showers.

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ANZ542-090800
Patuxent River to Broomes Island MD
433 PM EDT Wed Oct 8 2025

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON

REST OF THIS AFTERNOON
N winds 15 kt with gusts to 25 kt. Waves 1 ft.

TONIGHT
N winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.

THU
NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.

THU NIGHT
NE winds 10 kt with gusts to 20 kt. Waves 1 ft.

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

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

SAT
NE winds 10 to 15 kt. Waves 1 ft. A chance of showers through the night.

SUN
N winds 15 to 20 kt. Waves 1 ft. Showers likely through the day, then a chance of showers through the night.

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ANZ534-090800
Chesapeake Bay from Drum Point to Smith Point
433 PM EDT Wed Oct 8 2025

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON

REST OF THIS AFTERNOON
N winds 25 kt with gusts to 30 kt. Waves 4 ft.

TONIGHT
N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft.

THU
NE winds 15 to 20 kt. Gusts up to 30 kt... diminishing to 20 kt in the afternoon. Waves 3 ft.

THU NIGHT
NE winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.

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

FRI NIGHT
E winds 10 to 15 kt. Waves 2 ft.

SAT
NE winds 10 to 15 kt...increasing to 20 to 25 kt. Waves 2 to 3 ft...building to 5 ft. A chance of showers.

SUN
N winds 25 to 30 kt. Waves 5 ft...building to 6 ft. Showers likely through the day, then a chance of showers through the night.

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ANZ543-090800
Tangier Sound and the inland waters surrounding Bloodsworth Island
433 PM EDT Wed Oct 8 2025

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON

REST OF THIS AFTERNOON
N winds 20 kt with gusts to 30 kt. Waves 2 ft.

TONIGHT
N winds 20 to 25 kt with gusts to 30 kt. Waves 2 to 3 ft.

THU
NE winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.

THU NIGHT
NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.

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

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

SAT
NE winds 20 to 25 kt. Waves 1 to 2 ft... building to 3 ft after midnight. A chance of showers.

SUN
NE winds 25 to 30 kt...becoming N after midnight. Waves 3 ft. Showers likely .