Station List

National Weather Service Marine Forecast FZUS51 KLWX

FZUS51 KLWX 221157
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
757 AM EDT Fri May 22 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.

ANZ500-222000
757 AM EDT Fri May 22 2026

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

A cold front will stall south of the waters through Saturday before lifting back to the north Sunday into early next week. Small Craft Advisories will likely be needed much of the time through Saturday.

ANZ535-222000
Tidal Potomac from Key Bridge to Indian Head
757 AM EDT Fri May 22 2026

TODAY
NE winds 10 kt with gusts to 20 kt. Waves 1 ft. Showers.

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

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

SAT NIGHT
NE winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves 1 ft. Showers.

SUN
NE winds around 5 kt. Waves 1 ft. A chance of showers.

SUN NIGHT
SE winds around 5 kt. Waves 1 ft. A chance of showers.

MON
SE winds around 5 kt. Waves 1 ft or less. A chance of showers in the morning, then showers likely with a chance of tstms through the night. A chance of showers after midnight.

TUE
NE winds around 5 kt. Waves 1 ft or less. A chance of showers.

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

ANZ536-222000
Tidal Potomac from Indian Head to Cobb Island
757 AM EDT Fri May 22 2026

TODAY
NE winds 10 kt with gusts to 20 kt. Waves 1 ft. Showers likely this morning, then showers with a slight chance of tstms this afternoon.

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

SAT
NE winds 5 to 10 kt. Waves 1 ft. Showers.

SAT NIGHT
NE winds 5 to 10 kt. Waves 1 ft. Showers.

SUN
E winds around 5 kt. Waves 1 ft. A chance of showers.

SUN NIGHT
SE winds around 5 kt. Waves 1 ft. A chance of showers and tstms.

MON
S winds around 5 kt. Waves 1 ft or less. A chance of showers in the morning, then a chance of tstms through the night. Showers likely.

TUE
E winds around 5 kt. Waves 1 ft or less. Showers likely through the day. A chance of showers through the night.

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

ANZ537-222000
Tidal Potomac from Cobb Island to Smith Point
757 AM EDT Fri May 22 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT

TODAY
NE winds 15 kt with gusts to 20 kt. Waves 2 to 3 ft. Showers.

TONIGHT
E winds 10 to 15 kt with gusts to 20 kt. Waves 3 ft. Showers.

SAT
E winds 10 to 15 kt with gusts to 20 kt. Waves 3 ft. Showers.

SAT NIGHT
NE winds 5 to 10 kt. Waves 1 to 2 ft. Showers.

SUN
W winds around 5 kt. Waves 1 ft or less. Showers likely.

SUN NIGHT
SE winds around 5 kt. Waves flat. Showers likely with a chance of tstms.

MON
S winds around 5 kt. Waves 1 ft or less. Showers with a chance of tstms, then showers after midnight.

TUE
E winds around 5 kt. Waves flat. Showers likely through the day. A chance of showers through the night.

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

ANZ530-222000
Chesapeake Bay north of Pooles Island
757 AM EDT Fri May 22 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT

TODAY
E winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. A chance of showers this morning, then showers likely this afternoon.

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

SAT
E winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. Showers.

SAT NIGHT
E winds 15 to 20 kt with gusts to 25 kt. Waves 1 to 2 ft. Showers.

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

SUN NIGHT
E winds around 5 kt. Waves 1 ft. A chance of showers.

MON
SW winds around 5 kt. Waves 1 ft or less. A chance of showers.

TUE
W winds around 5 kt. Waves flat. A chance of showers through the day.

ANZ531-222000
Chesapeake Bay from Pooles Island to Sandy Point
757 AM EDT Fri May 22 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT

TODAY
E winds 15 kt with gusts to 20 kt. Waves 2 ft. Showers.

TONIGHT
E winds 15 kt with gusts to 20 kt. Waves 2 ft. Showers.

SAT
E winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. Showers.

SAT NIGHT
NE winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. Showers.

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

SUN NIGHT
E winds 5 kt. Waves flat. A chance of showers.

MON
SW winds around 5 kt. Waves flat. A chance of showers in the morning. Showers likely through the night, then a chance of showers after midnight.

TUE
SE winds around 5 kt. Waves flat. A chance of showers through the day.

ANZ538-222000
Patapsco River including Baltimore Harbor
757 AM EDT Fri May 22 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT

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

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

SAT
E winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. Showers.

SAT NIGHT
NE winds 10 to 15 kt. Gusts up to 25 kt in the evening. Waves 1 to 2 ft. Showers.

SUN
NE winds 5 kt. Waves less than 1 ft. Showers likely.

SUN NIGHT
E winds around 5 kt. Waves flat. A chance of showers.

MON
S winds around 5 kt. Waves flat. A chance of showers in the morning. Showers likely through the night, then a chance of showers after midnight.

TUE
SE winds around 5 kt. Waves flat. A chance of showers through the day.

ANZ539-222000
Chester River to Queenstown MD
757 AM EDT Fri May 22 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT

TODAY
E winds 15 kt with gusts to 20 kt. Waves 1 ft. Showers.

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

SAT
E winds 15 kt with gusts to 25 kt. Waves 2 ft. Showers.

SAT NIGHT
E winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Showers.

SUN
NE winds 5 to 10 kt. Waves 1 ft or less. Showers likely.

SUN NIGHT
E winds 5 kt. Waves flat. A chance of showers.

MON
SW winds around 5 kt. Waves flat. A chance of showers in the morning. Showers likely through the night, then a chance of showers after midnight.

TUE
Light winds. Waves flat. A chance of showers through the day.

ANZ532-222000
Chesapeake Bay from Sandy Point to North Beach
757 AM EDT Fri May 22 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT

TODAY
E winds 15 kt with gusts to 25 kt. Waves 2 ft. Showers.

TONIGHT
E winds 15 kt with gusts to 20 kt. Waves 2 ft. Showers.

SAT
E winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. Showers.

SAT NIGHT
E winds 15 to 20 kt with gusts to 25 kt... becoming NE 5 to 10 kt after midnight. Waves 2 to 3 ft. Showers.

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

SUN NIGHT
E winds 5 kt. Waves flat. A chance of showers.

MON
S winds around 5 kt. Waves flat. A chance of showers and tstms in the morning. Showers likely.

TUE
E winds around 5 kt. Waves flat. A chance of showers.

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

ANZ540-222000
Eastern Bay
757 AM EDT Fri May 22 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT

TODAY
E winds 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Showers.

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

SAT
E winds 15 kt with gusts to 25 kt. Waves 2 ft. Showers.

SAT NIGHT
E winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Showers.

SUN
N winds 5 kt. Waves less than 1 ft. Showers likely.

SUN NIGHT
E winds around 5 kt. Waves flat. A chance of showers and tstms.

MON
S winds around 5 kt. Waves flat. A chance of showers and tstms in the morning. Showers likely.

TUE
NE winds around 5 kt. Waves flat. A chance of showers.

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

ANZ533-222000
Chesapeake Bay from North Beach to Drum Point
757 AM EDT Fri May 22 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT

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

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

SAT
E winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. Showers.

SAT NIGHT
E winds 15 to 20 kt with gusts to 25 kt... becoming NE 5 to 10 kt after midnight. Waves 2 to 3 ft. Showers.

SUN
NE winds 5 kt. Waves less than 1 ft. Showers likely.

SUN NIGHT
E winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms.

MON
S winds around 5 kt. Waves 1 ft or less. A chance of tstms in the morning. Showers likely.

TUE
E winds around 5 kt. Waves flat. A chance of showers.

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

ANZ541-222000
Choptank River to Cambridge MD and the Little Choptank River
757 AM EDT Fri May 22 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT

TODAY
NE winds 15 kt with gusts to 20 kt. Waves 2 ft. Showers.

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

SAT
E winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. Showers.

SAT NIGHT
E winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves 1 to 2 ft. Showers.

SUN
N winds 5 kt. Waves less than 1 ft. Showers likely.

SUN NIGHT
E winds around 5 kt. Waves flat. Showers likely with a chance of tstms.

MON
SW winds around 5 kt. Waves flat. A chance of tstms in the morning. Showers likely.

TUE
NE winds around 5 kt. Waves flat. A chance of showers.

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

ANZ542-222000
Patuxent River to Broomes Island MD
757 AM EDT Fri May 22 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT

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

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

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

SAT NIGHT
NE winds 5 to 10 kt. Waves 1 ft. Showers.

SUN
N winds around 5 kt. Waves 1 ft. Showers likely.

SUN NIGHT
SE winds around 5 kt. Waves 1 ft. Showers likely with a chance of tstms.

MON
S winds around 5 kt. Waves 1 ft or less. A chance of tstms. Showers likely.

TUE
E winds around 5 kt. Waves 1 ft or less. Showers likely through the day. A chance of showers through the night.

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

ANZ534-222000
Chesapeake Bay from Drum Point to Smith Point
757 AM EDT Fri May 22 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT

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

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

SAT
E winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. Showers.

SAT NIGHT
E winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves 1 to 2 ft. Showers.

SUN
SW winds 5 kt. Waves less than 1 ft. Showers.

SUN NIGHT
SE winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms.

MON
S winds around 5 kt. Waves 1 ft. A chance of tstms. Showers.

TUE
E winds around 5 kt. Waves 1 ft or less. Showers likely through the day. A chance of showers through the night.

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

ANZ543-222000
Tangier Sound and the inland waters surrounding Bloodsworth Island
757 AM EDT Fri May 22 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT

TODAY
NE winds 15 kt with gusts to 25 kt. Waves 2 ft. A chance of showers this morning, then showers this afternoon.

TONIGHT
E winds 15 kt with gusts to 20 kt. Waves 2 ft. Showers.

SAT
E winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. Showers.

SAT NIGHT
E winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves 1 ft. Showers.

SUN
SW winds 5 kt. Waves less than 1 ft. Showers.

SUN NIGHT
S winds 5 kt. Waves less than 1 ft. Showers with a chance of tstms.

MON
S winds 5 kt. Waves less than 1 ft. Showers with a chance of tstms, then showers after midnight.

TUE
S winds around 5 kt. Waves flat. Showers through the day. A chance of showers through the night.

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