National Weather Service Marine Forecast FZUS51 KLWX

FZUS51 KLWX 010918
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
418 AM EST Sun Mar 1 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.

ANZ500-020000
418 AM EST Sun Mar 1 2026

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

A cold front will push south through the area today. Multiple areas of low pressure may track along this boundary to our south Monday and Tuesday before the front lifts to the north Wednesday. Small Craft Advisories may be needed Tuesday night.

ANZ535-020000
Tidal Potomac from Key Bridge to Indian Head
418 AM EST Sun Mar 1 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EST THIS MORNING THROUGH THIS AFTERNOON

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

TODAY
N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.

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

MON
E winds 5 kt. Waves less than 1 ft.

MON NIGHT
SE winds around 5 kt. Waves 1 ft. Snow and rain likely.

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

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

WED
S winds 5 kt. Waves less than 1 ft. A chance of rain.

THU
SW winds 5 to 10 kt. Waves 1 ft. A chance of rain.

ANZ536-020000
Tidal Potomac from Indian Head to Cobb Island
418 AM EST Sun Mar 1 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EST THIS MORNING THROUGH THIS AFTERNOON

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

TODAY
N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.

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

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

MON NIGHT
SE winds around 5 kt. Waves 1 ft. Snow and rain likely.

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

TUE NIGHT
SW winds 10 to 15 kt. Waves 1 ft. A chance of rain.

WED
S winds 5 to 10 kt. Waves 1 ft. A chance of rain in the afternoon.

THU
SW winds 5 to 10 kt. Waves 1 ft. A chance of rain.

ANZ537-020000
Tidal Potomac from Cobb Island to Smith Point
418 AM EST Sun Mar 1 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EST THIS MORNING THROUGH MONDAY MORNING

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

TODAY
N winds 5 kt...increasing to 10 to 15 kt in the late morning and afternoon. Gusts up to 20 kt. Waves 1 to 2 ft.

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

MON
NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Waves 1 to 2 ft.

MON NIGHT
E winds 5 kt. Waves less than 1 ft. A chance of snow and rain.

TUE
S winds 5 kt. Waves less than 1 ft. Rain likely.

TUE NIGHT
SW winds 5 to 10 kt. Waves 1 ft. A chance of rain.

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

THU
SW winds 5 to 10 kt. Waves 1 ft. A chance of rain through the night.

ANZ530-020000
Chesapeake Bay north of Pooles Island
418 AM EST Sun Mar 1 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EST THIS MORNING THROUGH THIS AFTERNOON

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

TODAY
N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. Scattered showers.

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

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

MON NIGHT
SE winds around 5 kt. Waves flat. A chance of snow.

TUE
SE winds around 5 kt. Waves flat. Rain and freezing rain.

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

WED
S winds around 5 kt. Waves 1 ft or less. A chance of rain.

THU
S winds 5 kt. Waves less than 1 ft. A chance of rain.

ANZ531-020000
Chesapeake Bay from Pooles Island to Sandy Point
418 AM EST Sun Mar 1 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EST THIS MORNING THROUGH THIS AFTERNOON

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

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

TONIGHT
NE winds 10 to 15 kt. Waves 2 ft.

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

MON NIGHT
SE winds 5 to 10 kt. Waves 1 ft. A chance of snow and rain.

TUE
S winds 5 kt. Waves less than 1 ft. Rain.

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

WED
S winds 5 to 10 kt. Waves 1 ft or less. A chance of rain.

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

ANZ538-020000
Patapsco River including Baltimore Harbor
418 AM EST Sun Mar 1 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EST THIS MORNING THROUGH THIS AFTERNOON

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

TODAY
N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.

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

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

MON NIGHT
SE winds 5 kt. Waves flat. A chance of snow and rain.

TUE
S winds 5 kt. Waves flat. Rain.

TUE NIGHT
SW winds 5 kt. Waves less than 1 ft. Rain likely.

WED
S winds around 5 kt. Waves 1 ft or less. A chance of rain.

THU
S winds 5 kt. Waves less than 1 ft. A chance of rain.

ANZ539-020000
Chester River to Queenstown MD
418 AM EST Sun Mar 1 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EST THIS MORNING THROUGH THIS AFTERNOON

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

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

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

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

MON NIGHT
SE winds 5 kt. Waves less than 1 ft. A chance of snow and rain.

TUE
S winds 5 kt. Waves less than 1 ft. Rain.

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

WED
S winds 5 to 10 kt. Waves 1 ft or less. A chance of rain.

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

ANZ532-020000
Chesapeake Bay from Sandy Point to North Beach
418 AM EST Sun Mar 1 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EST THIS MORNING THROUGH MONDAY MORNING

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

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

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

MON
NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Waves 1 to 2 ft.

MON NIGHT
SE winds 5 to 10 kt. Waves 1 ft. A chance of snow and rain.

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

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

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

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

ANZ540-020000
Eastern Bay
418 AM EST Sun Mar 1 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EST THIS MORNING THROUGH MONDAY MORNING

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

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

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

MON
NE winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves 1 ft.

MON NIGHT
SE winds 5 kt. Waves flat. A chance of snow and rain.

TUE
S winds 5 kt. Waves less than 1 ft. Rain.

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

WED
S winds 5 to 10 kt. Waves 1 ft or less. A chance of rain.

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

ANZ533-020000
Chesapeake Bay from North Beach to Drum Point
418 AM EST Sun Mar 1 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EST THIS MORNING THROUGH MONDAY MORNING

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

TODAY
N winds 5 to 10 kt...increasing to 10 to 15 kt in the late morning and afternoon. Gusts up to 25 kt. Waves 2 to 3 ft.

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

MON
NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Waves 1 to 2 ft.

MON NIGHT
SE winds 5 to 10 kt. Waves 1 ft. A chance of snow and rain.

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

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

WED
SW winds 10 to 15 kt...becoming S 5 to 10 kt. Waves 1 ft. A chance of rain through the night.

THU
SW winds 5 to 10 kt. Waves 1 ft. A chance of rain.

ANZ541-020000
Choptank River to Cambridge MD and the Little Choptank River
418 AM EST Sun Mar 1 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EST THIS MORNING THROUGH MONDAY MORNING

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

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

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

MON
NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Waves 1 to 2 ft.

MON NIGHT
E winds 5 kt. Waves less than 1 ft. A chance of snow and rain.

TUE
S winds 5 to 10 kt. Waves 1 ft or less. Rain.

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

WED
SW winds 10 to 15 kt...becoming S 5 to 10 kt. Waves 1 ft. A chance of rain through the night.

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

ANZ542-020000
Patuxent River to Broomes Island MD
418 AM EST Sun Mar 1 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EST THIS MORNING THROUGH THIS AFTERNOON

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

TODAY
N winds 5 kt...increasing to 10 to 15 kt in the late morning and afternoon. Gusts up to 20 kt. Waves 1 ft.

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

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

MON NIGHT
E winds 5 kt. Waves less than 1 ft. A chance of snow and rain.

TUE
S winds around 5 kt. Waves 1 ft. Rain.

TUE NIGHT
SW winds 5 to 10 kt. Waves 1 ft. A chance of rain.

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

THU
SW winds 5 to 10 kt. Waves 1 ft. A chance of rain through the night.

ANZ534-020000
Chesapeake Bay from Drum Point to Smith Point
418 AM EST Sun Mar 1 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EST THIS MORNING THROUGH MONDAY MORNING

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

TODAY
S winds 5 to 10 kt...becoming N 15 to 20 kt with gusts to 25 kt in the late morning and afternoon. Waves 1 ft...building to 3 ft in the afternoon.

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

MON
NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Waves 2 ft.

MON NIGHT
E winds 5 to 10 kt. Waves 1 ft. A chance of rain and snow.

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

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

WED
SW winds 10 to 15 kt...becoming S 5 to 10 kt. Waves 1 to 2 ft.

THU
SW winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain through the night.

ANZ543-020000
Tangier Sound and the inland waters surrounding Bloodsworth Island
418 AM EST Sun Mar 1 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EST THIS MORNING THROUGH MONDAY MORNING

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

TODAY
S winds 5 kt...becoming N 10 to 15 kt in the late morning and afternoon. Gusts up to 20 kt. Waves 1 to 2 ft.

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