577
FZUS51 KLWX 111434
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1033 AM EDT Sat Oct 11 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.

ANZ500-112000-
1033 AM EDT Sat Oct 11 2025

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

Coastal low pressure develops along the southeast U.S. coast this
weekend, then moves north toward the Delmarva early next week. A
prolonged period of hazardous marine conditions is expected to
continue through the middle of next week, with gales likely at times
 Sunday through Monday. Small Craft Advisories are likely needed
Tuesday into Wednesday, as well.

$$

ANZ535-112000-
Tidal Potomac from Key Bridge to Indian Head-
1033 AM EDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY
MORNING...
...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY
NIGHT...

.REST OF TODAY...NE winds 5 to 10 kt. Waves 1 ft. Isolated showers
late this morning, then scattered showers this afternoon.
.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Rain likely. Vsby 1 to 3 NM.
.SUN...NE winds 15 to 20 kt with gusts to 30 kt. Waves 1 ft. Rain.
Vsby 1 to 3 NM.
.SUN NIGHT...NE winds 15 to 20 kt with gusts to 30 kt. Waves 1 to
2 ft. Rain likely.
.MON...N winds 15 kt with gusts to 30 kt. Waves 2 ft. A chance of
rain.
.MON NIGHT...N winds 10 to 15 kt. Gusts up to 30 kt... diminishing
to 20 kt after midnight. Waves 1 to 2 ft. A chance of rain.
.TUE...N winds 10 to 15 kt. Waves 1 ft.
.WED...NW winds 5 to 10 kt. Waves 1 ft.

$$

ANZ536-112000-
Tidal Potomac from Indian Head to Cobb Island-
1033 AM EDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY
MORNING...
...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY
NIGHT...

.REST OF TODAY...NE winds 5 to 10 kt. Waves 1 ft. Isolated showers.
.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft. Rain likely. Vsby 1 to 3 NM.
.SUN...NE winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft. Rain.
Vsby 1 to 3 NM.
.SUN NIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
Rain likely.
.MON...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. A chance
of rain.
.MON NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. A
chance of rain.
.TUE...N winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain in the
morning.
.WED...NW winds 10 to 15 kt. Waves 1 ft.

$$

ANZ537-112000-
Tidal Potomac from Cobb Island to Smith Point-
1033 AM EDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH LATE TONIGHT...
...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY
NIGHT...
...GALE WATCH IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING...

.REST OF TODAY...NE winds 10 to 15 kt with gusts to 20 kt. Waves
2 ft. Isolated showers late this morning, then scattered showers
this afternoon.
.TONIGHT...NE winds 15 to 20 kt. Gusts up to 25 kt... increasing to
30 kt late. Waves 3 ft. Rain likely. Vsby 1 to 3 NM.
.SUN...NE winds 25 to 30 kt. Gusts up to 35 kt until late afternoon.
Waves 5 ft. Rain. Vsby 1 to 3 NM.
.SUN NIGHT...NE winds 25 to 30 kt. Waves 6 ft. Rain likely.
.MON...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft. Rain
likely.
.MON NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft. A
chance of rain.
.TUE...N winds 15 to 20 kt. Waves 3 ft...subsiding to 2 ft after
midnight. A chance of rain in the morning.
.WED...N winds 15 to 20 kt. Waves 2 to 3 ft.

$$

ANZ530-112000-
Chesapeake Bay north of Pooles Island-
1033 AM EDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON
THROUGH SUNDAY MORNING...
...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY
NIGHT...

.REST OF TODAY...NE winds 10 kt. Waves 1 ft. Isolated showers late
this morning, then scattered showers this afternoon.
.TONIGHT...NE winds 15 to 20 kt. Gusts up to 25 kt. Waves 2 ft. Rain
likely. Vsby 1 to 3 NM.
.SUN...NE winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. Rain
likely. Vsby 1 to 3 NM.
.SUN NIGHT...NE winds 20 to 25 kt with gusts to 35 kt. Waves 3 ft.
Rain.
.MON...NE winds 20 to 25 kt with gusts to 30 kt. Waves 2 to 3 ft.
Rain likely.
.MON NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 2 ft. A
chance of rain.
.TUE...N winds 15 to 20 kt. Waves 1 to 2 ft. A chance of rain in the
morning.
.WED...NW winds 15 to 20 kt. Waves 1 ft.

$$

ANZ531-112000-
Chesapeake Bay from Pooles Island to Sandy Point-
1033 AM EDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON
THROUGH SUNDAY MORNING...
...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY
NIGHT...

.REST OF TODAY...NE winds 10 kt with gusts to 20 kt. Waves 1 ft.
Isolated showers late this morning, then scattered showers this
afternoon.
.TONIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Waves 2 to
3 ft. Rain likely. Vsby 1 to 3 NM.
.SUN...NE winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft. Rain.
Vsby 1 to 3 NM.
.SUN NIGHT...NE winds 25 to 30 kt. Waves 4 ft. Rain.
.MON...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft. Rain
likely.
.MON NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. A
chance of rain.
.TUE...N winds 15 to 20 kt. Waves 2 to 3 ft. A chance of rain in the
morning.
.WED...N winds 15 to 20 kt. Waves 2 to 3 ft.

$$

ANZ538-112000-
Patapsco River including Baltimore Harbor-
1033 AM EDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON
THROUGH SUNDAY MORNING...
...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY
NIGHT...

.REST OF TODAY...NE winds 5 to 10 kt. Waves 1 ft. Isolated showers
late this morning, then scattered showers this afternoon.
.TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt... increasing to
25 kt late. Waves 1 to 2 ft. Rain likely. Vsby 1 to 3 NM.
.SUN...NE winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft. Rain.
Vsby 1 to 3 NM.
.SUN NIGHT...NE winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
Rain likely.
.MON...N winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft. Rain
likely.
.MON NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 1 to
2 ft. A chance of rain.
.TUE...N winds 10 to 15 kt. Waves 1 ft. A chance of rain in the
morning.
.WED...NW winds 10 to 15 kt. Waves 1 ft.

$$

ANZ539-112000-
Chester River to Queenstown MD-
1033 AM EDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON
THROUGH SUNDAY MORNING...
...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY
NIGHT...

.REST OF TODAY...NE winds 5 to 10 kt. Waves 1 ft. Scattered showers.
.TONIGHT...NE winds 15 to 20 kt. Gusts up to 25 kt. Waves 1 to 2 ft.
Rain likely. Vsby 1 to 3 NM.
.SUN...NE winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft. Rain.
Vsby 1 to 3 NM.
.SUN NIGHT...NE winds 20 to 25 kt with gusts to 35 kt. Waves 3 ft.
Rain.
.MON...N winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft. Rain
likely.
.MON NIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft. A
chance of rain.
.TUE...N winds 15 to 20 kt...diminishing to 10 kt. Waves 2 to 3 ft.
A chance of rain in the morning.
.WED...N winds 10 to 15 kt. Waves 1 to 2 ft.

$$

ANZ532-112000-
Chesapeake Bay from Sandy Point to North Beach-
1033 AM EDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON
THROUGH LATE TONIGHT...
...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY
NIGHT...

.REST OF TODAY...NE winds 10 kt with gusts to 20 kt. Waves 1 to
2 ft. Isolated showers late this morning, then scattered showers
this afternoon.
.TONIGHT...NE winds 15 to 20 kt. Gusts up to 25 kt. Waves 2 to 3 ft.
Rain likely. Vsby 1 to 3 NM.
.SUN...NE winds 25 to 30 kt. Waves 4 ft. Rain. Vsby 1 to 3 NM.
.SUN NIGHT...NE winds 25 to 30 kt. Waves 5 ft. Rain.
.MON...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft. Rain
likely.
.MON NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 4 ft. A
chance of rain.
.TUE...N winds 20 to 25 kt...diminishing to 10 to 15 kt. Waves 2 to
3 ft. A chance of rain in the morning.
.WED...NW winds 15 to 20 kt. Waves 2 to 3 ft.

$$

ANZ540-112000-
Eastern Bay-
1033 AM EDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON
THROUGH LATE TONIGHT...
...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY
NIGHT...

.REST OF TODAY...NE winds 10 kt. Waves 1 ft. Isolated showers late
this morning, then scattered showers this afternoon.
.TONIGHT...NE winds 15 to 20 kt. Gusts up to 25 kt. Waves 2 ft. Rain
likely. Vsby 1 to 3 NM.
.SUN...NE winds 20 to 25 kt with gusts to 35 kt. Waves 3 ft. Rain.
Vsby 1 to 3 NM.
.SUN NIGHT...NE winds 20 to 25 kt with gusts to 40 kt. Waves 3 ft.
Rain.
.MON...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. Rain
likely.
.MON NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 2 ft. A
chance of rain.
.TUE...N winds 15 to 20 kt. Waves 1 to 2 ft. A chance of rain in the
morning.
.WED...N winds 15 to 20 kt. Waves 1 to 2 ft.

$$

ANZ533-112000-
Chesapeake Bay from North Beach to Drum Point-
1033 AM EDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON
THROUGH LATE TONIGHT...
...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY
NIGHT...

.REST OF TODAY...NE winds 10 to 15 kt with gusts to 20 kt. Waves
1 to 2 ft. Isolated showers late this morning, then scattered
showers this afternoon.
.TONIGHT...NE winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
Rain likely. Vsby 1 to 3 NM.
.SUN...NE winds 25 to 30 kt. Waves 5 ft. Rain. Vsby 1 to 3 NM.
.SUN NIGHT...NE winds 25 to 30 kt. Waves 6 ft. Rain.
.MON...N winds 25 to 30 kt. Waves 5 ft. Rain likely.
.MON NIGHT...N winds 25 to 30 kt. Waves 5 ft. A chance of rain.
.TUE...N winds 20 to 25 kt...diminishing to 15 kt after midnight.
Waves 3 ft...subsiding to 2 ft after midnight. A chance of rain in
the morning.
.WED...N winds 20 to 25 kt. Waves 2 to 3 ft.

$$

ANZ541-112000-
Choptank River to Cambridge MD and the Little Choptank River-
1033 AM EDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON
THROUGH LATE TONIGHT...
...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY
NIGHT...

.REST OF TODAY...NE winds 10 kt with gusts to 20 kt. Waves 1 ft.
Isolated showers late this morning, then scattered showers this
afternoon.
.TONIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
Rain likely. Vsby 1 to 3 NM.
.SUN...NE winds 25 to 30 kt. Waves 3 ft. Rain. Vsby 1 to 3 NM.
.SUN NIGHT...NE winds 25 to 30 kt. Waves 4 ft. Rain.
.MON...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. Rain
likely.
.MON NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. A
chance of rain.
.TUE...N winds 20 to 25 kt...diminishing to 10 to 15 kt. Waves 2 to
3 ft. A chance of rain in the morning.
.WED...N winds 15 to 20 kt. Waves 2 ft.

$$

ANZ542-112000-
Patuxent River to Broomes Island MD-
1033 AM EDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON
THROUGH LATE TONIGHT...
...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY
NIGHT...

.REST OF TODAY...NE winds 10 kt. Waves 1 ft. Isolated showers late
this morning, then scattered showers this afternoon.
.TONIGHT...NE winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
Rain likely. Vsby 1 to 3 NM.
.SUN...NE winds 20 to 25 kt. Gusts up to 35 kt. Waves 1 to 2 ft.
Rain. Vsby 1 to 3 NM.
.SUN NIGHT...NE winds 20 to 25 kt with gusts to 35 kt. Waves 1 to
2 ft. Rain.
.MON...N winds 15 to 20 kt with gusts to 30 kt. Waves 1 ft. Rain
likely.
.MON NIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 1 ft. A
chance of rain.
.TUE...N winds 10 to 15 kt. Waves 1 ft. A chance of rain in the
morning.
.WED...N winds 10 to 15 kt. Waves 1 ft.

$$

ANZ534-112000-
Chesapeake Bay from Drum Point to Smith Point-
1033 AM EDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH LATE TONIGHT...
...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY
NIGHT...
...GALE WATCH IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING...

.REST OF TODAY...E winds 10 to 15 kt with gusts to 20 kt. Waves
2 ft. Isolated showers late this morning, then scattered showers
this afternoon.
.TONIGHT...NE winds 20 to 25 kt. Gusts up to 30 kt. Waves 3 ft. Rain
likely. Vsby 1 to 3 NM.
.SUN...NE winds 25 to 30 kt. Waves 5 ft. Rain. Vsby 1 to 3 NM.
.SUN NIGHT...NE winds 25 to 35 kt. Waves 6 ft. Rain.
.MON...N winds 25 to 30 kt. Waves 5 ft. Rain likely.
.MON NIGHT...N winds 25 to 30 kt. Waves 5 ft. A chance of rain.
.TUE...N winds 20 to 25 kt. Waves 4 ft...subsiding to 3 ft after
midnight. A chance of rain in the morning.
.WED...N winds 20 to 25 kt. Waves 3 ft.

$$

ANZ543-112000-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1033 AM EDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH LATE TONIGHT...
...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY
NIGHT...
...GALE WATCH IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING...

.REST OF TODAY...E winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft. Scattered showers.
.TONIGHT...NE winds 15 to 20 kt with gusts to 30 kt. Waves 2 to
3 ft. Rain likely. Vsby 1 to 3 NM.
.SUN...NE winds 25 to 30 kt. Waves 3 ft. Rain. Vsby 1 to 3 NM.
.SUN NIGHT...NE winds 25 to 30 kt. Waves 3 ft. Rain.
.MON...N winds 20 to 25 kt with gusts to 35 kt. Waves 3 ft. Rain
likely.
.MON NIGHT...N winds 25 to 30 kt. Waves 3 ft. A chance of rain.
.TUE...N winds 20 to 25 kt. Waves 2 to 3 ft. A chance of rain in the
morning.
.WED...N winds 20 to 25 kt. Waves 2 ft.

$$