National Weather Service Marine Forecast FZUS51 KLWX

FZUS51 KLWX 142058
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
458 PM EDT Wed Oct 14 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.

ANZ500-150800
458 PM EDT Wed Oct 14 2026

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

A dry cold front will push south through tonight, then stall near or just south of the region on Thursday. A short lived Small Craft Advisory may be needed tonight into Thursday morning. A stronger cold front moves across the area Friday, with gale conditions possible, especially over the open waters Friday night into Saturday.

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ANZ535-150800
Tidal Potomac from Key Bridge to Indian Head
458 PM EDT Wed Oct 14 2026

REST OF THIS AFTERNOON
SW winds 5 kt. Waves less than 1 ft.

TONIGHT
NW winds around 5 kt...becoming NE late. Waves 1 ft.

THU
NE winds 5 to 10 kt. Waves 1 ft. Showers likely.

THU NIGHT
SE winds 5 kt. Waves less than 1 ft. A chance of showers.

FRI
SW winds 10 to 15 kt. Gusts up to 20 kt... increasing to 30 kt in the afternoon. Waves 1 ft. A chance of showers.

FRI NIGHT
NW winds 10 to 15 kt with gusts to 30 kt. Waves 1 ft. Showers.

SAT
N winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers in the morning.

SUN
E winds around 5 kt. Waves 1 ft.

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ANZ536-150800
Tidal Potomac from Indian Head to Cobb Island
458 PM EDT Wed Oct 14 2026

REST OF THIS AFTERNOON
SW winds 5 kt. Waves less than 1 ft.

TONIGHT
NW winds 5 kt...becoming N late. Waves 1 ft.

THU
NE winds 5 to 10 kt. Waves 1 ft. Showers likely.

THU NIGHT
SE winds 5 kt. Waves less than 1 ft. A chance of showers.

FRI
SW winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft.

FRI NIGHT
W winds 15 to 20 kt...becoming NW after midnight. Gusts up to 30 kt. Waves 2 ft. Showers.

SAT
N winds 15 to 20 kt. Waves 1 to 2 ft.

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

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ANZ537-150800
Tidal Potomac from Cobb Island to Smith Point
458 PM EDT Wed Oct 14 2026

REST OF THIS AFTERNOON
S winds 5 kt. Waves flat.

TONIGHT
SW winds around 5 kt...becoming N after midnight. Waves 1 ft or less.

THU
NE winds 10 to 15 kt. Gusts up to 20 kt until late afternoon. Waves 2 ft. A chance of showers.

THU NIGHT
SE winds 5 to 10 kt. Waves 1 ft. A chance of showers.

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

FRI NIGHT
SW winds 15 to 20 kt...becoming NW 20 to 25 kt after midnight. Gusts up to 30 kt. Waves 2 to 3 ft. Showers.

SAT
N winds 20 to 25 kt. Waves 4 ft. Showers in the morning.

SUN
N winds 15 to 20 kt...becoming E 5 to 10 kt. Waves 2 to 3 ft...subsiding to 1 ft.

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ANZ530-150800
Chesapeake Bay north of Pooles Island
458 PM EDT Wed Oct 14 2026

REST OF THIS AFTERNOON
W winds 5 kt. Waves less than 1 ft.

TONIGHT
NW winds 5 to 10 kt...becoming NE 10 to 15 kt with gusts to 20 kt late. Waves 1 ft. A chance of showers.

THU
NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.

THU NIGHT
SE winds 5 to 10 kt. Waves 1 ft. A chance of showers.

FRI
SW winds 15 to 20 kt with gusts to 25 kt. Waves 1 to 2 ft. Showers likely.

FRI NIGHT
W winds 15 to 20 kt...becoming NW 20 to 25 kt after midnight. Gusts up to 30 kt. Waves 2 ft. Showers likely.

SAT
N winds 20 to 25 kt...diminishing to 10 to 15 kt after midnight. Waves 1 to 2 ft. A chance of showers in the morning.

SUN
N winds 5 to 10 kt...becoming S. Waves 1 ft or less.

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ANZ531-150800
Chesapeake Bay from Pooles Island to Sandy Point
458 PM EDT Wed Oct 14 2026

REST OF THIS AFTERNOON
SW winds 5 kt. Waves less than 1 ft.

TONIGHT
SW winds 5 kt...becoming N 10 to 15 kt with gusts to 20 kt in the late evening and overnight. Waves 1 to 2 ft. A chance of showers.

THU
NE winds 10 to 15 kt with gusts to 20 kt... becoming E 5 kt late. Waves 1 to 2 ft. Showers likely.

THU NIGHT
SE winds 5 to 10 kt. Waves 1 ft. A chance of showers.

FRI
SW winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. Showers likely.

FRI NIGHT
W winds 15 to 20 kt...becoming NW 20 to 25 kt after midnight. Gusts up to 30 kt. Waves 3 ft. Showers.

SAT
N winds 20 to 25 kt. Waves 3 ft. A chance of showers in the morning.

SUN
N winds 10 to 15 kt...becoming SE 5 to 10 kt in the afternoon and evening, then becoming S after midnight. Waves 1 to 2 ft.

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ANZ538-150800
Patapsco River including Baltimore Harbor
458 PM EDT Wed Oct 14 2026

REST OF THIS AFTERNOON
W winds 5 kt. Waves less than 1 ft.

TONIGHT
NW winds 5 kt...becoming NE with gusts to 20 kt late. Waves 1 ft or less. A chance of showers.

THU
NE winds 5 to 10 kt. Waves 1 ft. Showers likely.

THU NIGHT
SE winds 5 to 10 kt. Waves 1 ft. A chance of showers.

FRI
SW winds 10 to 15 kt. Gusts up to 25 kt in the afternoon. Waves 1 ft. Showers likely.

FRI NIGHT
W winds 10 to 15 kt...becoming NW 15 to 20 kt after midnight. Gusts up to 30 kt. Waves 2 ft. Showers likely.

SAT
N winds 15 to 20 kt...diminishing to 5 to 10 kt after midnight. Waves 1 to 2 ft. A chance of showers in the morning.

SUN
N winds 5 to 10 kt...becoming S. Waves 1 ft or less.

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ANZ539-150800
Chester River to Queenstown MD
458 PM EDT Wed Oct 14 2026

REST OF THIS AFTERNOON
SW winds 5 kt. Waves less than 1 ft.

TONIGHT
W winds 5 kt...becoming N 10 to 15 kt with gusts to 20 kt after midnight. Waves 1 to 2 ft. A chance of showers.

THU
NE winds 10 to 15 kt...becoming E 5 kt late. Waves 1 to 2 ft. Showers likely.

THU NIGHT
SE winds 5 to 10 kt. Waves 1 ft. A chance of showers.

FRI
S winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. A chance of showers.

FRI NIGHT
W winds 15 to 20 kt...becoming NW 20 to 25 kt after midnight. Gusts up to 30 kt. Waves 3 ft. Showers.

SAT
N winds 20 to 25 kt. Waves 3 ft...subsiding to 2 ft after midnight. A chance of showers in the morning.

SUN
NE winds 5 to 10 kt...becoming S. Waves 1 to 2 ft...subsiding to flat.

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ANZ532-150800
Chesapeake Bay from Sandy Point to North Beach
458 PM EDT Wed Oct 14 2026

REST OF THIS AFTERNOON
SW winds 5 kt. Waves less than 1 ft.

TONIGHT
SW winds 5 kt...becoming N 10 to 15 kt with gusts to 20 kt in the late evening and overnight. Waves 1 to 2 ft.

THU
NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Showers.

THU NIGHT
SE winds 5 to 10 kt. Waves 1 ft. A chance of showers.

FRI
SW winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. A chance of showers.

FRI NIGHT
W winds 15 to 20 kt...becoming NW 20 to 25 kt after midnight. Gusts up to 30 kt. Waves 3 ft. Showers.

SAT
N winds 20 to 25 kt. Waves 3 ft.

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

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ANZ540-150800
Eastern Bay
458 PM EDT Wed Oct 14 2026

REST OF THIS AFTERNOON
SW winds 5 kt. Waves less than 1 ft.

TONIGHT
W winds 5 kt...becoming N 10 to 15 kt with gusts to 20 kt after midnight. Waves 1 ft.

THU
NE winds 10 to 15 kt with gusts to 20 kt... becoming E 5 kt late. Waves 1 ft. Showers.

THU NIGHT
SE winds 5 to 10 kt. Waves 1 ft. A chance of showers.

FRI
SW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. A chance of showers.

FRI NIGHT
W winds 15 to 20 kt...becoming NW 20 to 25 kt after midnight. Gusts up to 30 kt. Waves 3 ft. Showers.

SAT
N winds 20 to 25 kt. Waves 2 to 3 ft. Showers likely in the morning.

SUN
NE winds 10 to 15 kt...becoming SE 5 kt. Waves 1 ft or less.

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ANZ533-150800
Chesapeake Bay from North Beach to Drum Point
458 PM EDT Wed Oct 14 2026

REST OF THIS AFTERNOON
S winds 5 kt. Waves less than 1 ft.

TONIGHT
SW winds 5 kt...becoming N 10 to 15 kt with gusts to 20 kt after midnight. Waves 1 to 2 ft.

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

THU NIGHT
SE winds 5 to 10 kt. Waves 1 ft. A chance of showers.

FRI
SW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.

FRI NIGHT
W winds 15 to 20 kt...becoming NW 25 to 30 kt after midnight. Waves 3 ft...building to 5 ft after midnight. Showers.

SAT
N winds 25 to 30 kt. Waves 4 ft. Showers likely in the morning.

SUN
N winds 15 to 20 kt...becoming E 5 to 10 kt. Waves 2 to 3 ft...subsiding to 1 ft.

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ANZ541-150800
Choptank River to Cambridge MD and the Little Choptank River
458 PM EDT Wed Oct 14 2026

REST OF THIS AFTERNOON
SW winds 5 kt. Waves less than 1 ft.

TONIGHT
SW winds 5 to 10 kt...becoming N 10 to 15 kt with gusts to 20 kt after midnight. Waves 1 ft.

THU
NE winds 10 to 15 kt. Gusts up to 20 kt until late afternoon. Waves 1 to 2 ft. Showers.

THU NIGHT
SE winds 5 to 10 kt. Waves 1 ft. A chance of showers.

FRI
SW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. A chance of showers.

FRI NIGHT
W winds 15 to 20 kt...becoming NW 25 to 30 kt after midnight. Waves 3 ft. Showers.

SAT
N winds 25 to 30 kt. Waves 3 ft. Showers likely in the morning.

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

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ANZ542-150800
Patuxent River to Broomes Island MD
458 PM EDT Wed Oct 14 2026

REST OF THIS AFTERNOON
SW winds 5 kt. Waves less than 1 ft.

TONIGHT
SW winds around 5 kt...becoming N after midnight. Waves 1 ft.

THU
NE winds 5 to 10 kt. Gusts up to 20 kt until late afternoon. Waves 1 ft. Showers likely.

THU NIGHT
SE winds 5 kt. Waves less than 1 ft. A chance of showers.

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

FRI NIGHT
W winds 10 to 15 kt...becoming NW 15 to 20 kt after midnight. Gusts up to 30 kt. Waves 1 ft. Showers.

SAT
N winds 15 to 20 kt. Waves 1 ft. Showers in the morning.

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

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ANZ534-150800
Chesapeake Bay from Drum Point to Smith Point
458 PM EDT Wed Oct 14 2026

REST OF THIS AFTERNOON
S winds 5 kt. Waves less than 1 ft.

TONIGHT
SW winds 5 kt...becoming N after midnight. Waves 1 ft.

THU
NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance of showers.

THU NIGHT
SE winds 10 kt. Waves 1 ft. A chance of showers.

FRI
SW winds 10 to 15 kt with gusts to 25 kt. Waves 2 to 3 ft.

FRI NIGHT
SW winds 15 to 20 kt...becoming NW 25 to 30 kt after midnight. Waves 4 ft. Showers.

SAT
N winds 25 to 30 kt. Waves 5 ft. Showers, mainly in the morning.

SUN
NE winds 15 to 20 kt...becoming E 5 to 10 kt. Waves 4 ft... subsiding to 1 to 2 ft.

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ANZ543-150800
Tangier Sound and the inland waters surrounding Bloodsworth Island
458 PM EDT Wed Oct 14 2026

REST OF THIS AFTERNOON
S winds 5 kt. Waves less than 1 ft.

TONIGHT
SW winds 5 kt...becoming N after midnight. Waves 1 ft.

THU
NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. A chance of showers.

THU NIGHT
E winds 5 to 10 kt. Waves 1 ft. A chance of showers.

FRI
SW winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.

FRI NIGHT
SW winds 20 to 25 kt...becoming NW 25 to 30 kt after midnight. Waves 3 ft. Showers.

SAT
N winds 25 to 30 kt. Waves 2 to 3 ft. Showers in the morning.

SUN
N winds 15 to 20 kt...becoming NE 5 to 10 kt. Waves 1 to 2 ft.