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Barren Island, MD Coastal Forecast

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Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
658 AM EST Fri Dec 26 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.

ANZ500-262100-
658 AM EST Fri Dec 26 2025

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

An area of low pressure will cross the area later today into
tonight. A second wave of low pressure will drive a stronger cold
front across the area Sunday night into Monday. Small Craft
Advisories may be needed Saturday. Advisories will likely be needed
Sunday night through Tuesday. Gale conditions are possible late
Monday through Tuesday.

$$

ANZ535-262100-
Tidal Potomac from Key Bridge to Indian Head-
658 AM EST Fri Dec 26 2025

.TODAY...E winds 5 to 10 kt...becoming SE this afternoon. Waves
1 ft. A chance of rain with a slight chance of sleet this afternoon.
.TONIGHT...SE winds 5 to 10 kt...becoming N late. Waves 1 ft. Rain
likely.
.SAT...N winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...E winds around 5 kt. Waves 1 ft or less.
.SUN...S winds 5 to 10 kt. Waves 1 ft. A chance of rain.
.SUN NIGHT...S winds 5 to 10 kt...becoming SW 15 to 20 kt with gusts
to 25 kt after midnight. Waves 1 ft. A chance of rain.
.MON...SW winds 15 to 20 kt...becoming W. Waves 1 to 2 ft. Rain
likely, mainly in the morning.
.TUE...W winds 15 to 20 kt...diminishing to 5 to 10 kt after
midnight. Waves 1 to 2 ft.

$$

ANZ536-262100-
Tidal Potomac from Indian Head to Cobb Island-
658 AM EST Fri Dec 26 2025

.TODAY...E winds 5 to 10 kt...becoming SE this afternoon. Waves
1 ft. A chance of rain with a slight chance of sleet this afternoon.
.TONIGHT...S winds 5 to 10 kt...becoming N late. Waves 1 ft. Rain
likely.
.SAT...N winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...S winds 5 to 10 kt. Waves 1 ft. A chance of rain.
.SUN NIGHT...S winds 10 to 15 kt...becoming SW 20 to 25 kt after
midnight. Waves 1 to 2 ft. A chance of rain.
.MON...SW winds 20 to 25 kt...becoming W. Waves 2 ft. Rain likely
through the day.
.TUE...NW winds 15 to 20 kt...becoming W 5 to 10 kt. Waves 2 to
3 ft...subsiding to 1 ft.

$$

ANZ537-262100-
Tidal Potomac from Cobb Island to Smith Point-
658 AM EST Fri Dec 26 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM EST THIS MORNING...

.TODAY...NE winds 10 to 15 kt with gusts to 20 kt... becoming SE
5 to 10 kt this afternoon. Waves 1 to 2 ft. A chance of rain with a
slight chance of sleet this afternoon.
.TONIGHT...S winds 5 to 10 kt...becoming NW late. Waves 1 ft. Rain
likely. Vsby 1 to 3 NM.
.SAT...N winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.SAT NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the evening.
Waves 1 to 2 ft.
.SUN...SE winds 5 to 10 kt. Waves 1 ft or less.
.SUN NIGHT...S winds 10 to 15 kt...becoming SW 20 to 25 kt after
midnight. Waves 2 ft.
.MON...SW winds 20 to 25 kt...becoming W 25 to 30 kt. Waves 3 ft.
Rain likely through the day.
.TUE...W winds 15 to 20 kt. Waves 2 to 3 ft...subsiding to 1 ft
after midnight.

$$

ANZ530-262100-
Chesapeake Bay north of Pooles Island-
658 AM EST Fri Dec 26 2025

.TODAY...NE winds 10 kt...becoming SE this afternoon. Waves 1 ft.
Sleet likely with a chance of freezing rain this afternoon with vsby
1 to 3 NM.
.TONIGHT...E winds 5 to 10 kt...becoming NE late. Waves 1 ft. Sleet,
a chance of rain and freezing rain. Patchy fog. Vsby 1 NM or less.
.SAT...N winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...NE winds around 5 kt. Waves 1 ft or less.
.SUN...SE winds around 5 kt. Waves 1 ft. A chance of rain.
.SUN NIGHT...S winds 5 to 10 kt...increasing to 15 to 20 kt after
midnight. Waves 1 to 2 ft. Rain likely.
.MON...SW winds 15 to 20 kt...becoming W 25 to 30 kt. Waves 2 to
3 ft. Rain through the day.
.TUE...W winds 25 to 30 kt...diminishing to 15 to 20 kt. Waves 1 to
2 ft.

$$

ANZ531-262100-
Chesapeake Bay from Pooles Island to Sandy Point-
658 AM EST Fri Dec 26 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM EST THIS MORNING...

.TODAY...NE winds 10 to 15 kt...becoming SE this afternoon. Waves
1 to 2 ft. Sleet, rain likely with a slight chance of freezing rain
this afternoon.
.TONIGHT...SE winds 5 to 10 kt...becoming N late. Waves 1 ft. Rain
and sleet. Vsby 1 to 3 NM.
.SAT...N winds 5 to 10 kt with gusts to 20 kt. Waves 2 ft.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft or less.
.SUN...SE winds 5 to 10 kt. Waves 1 ft or less. A chance of rain.
.SUN NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Waves 2 to
3 ft. A chance of rain.
.MON...SW winds 15 to 20 kt...becoming W 25 to 30 kt. Waves 3 ft.
Rain through the day.
.TUE...W winds 25 to 30 kt...diminishing to 15 to 20 kt after
midnight. Waves 3 ft...subsiding to 2 ft after midnight.

$$

ANZ538-262100-
Patapsco River including Baltimore Harbor-
658 AM EST Fri Dec 26 2025

.TODAY...NE winds 10 kt...becoming SE this afternoon. Waves 1 ft or
less. Sleet, rain likely with a slight chance of freezing rain this
afternoon.
.TONIGHT...SE winds 5 to 10 kt...becoming N late. Waves 1 ft or
less. Rain and sleet. Vsby 1 to 3 NM.
.SAT...N winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...NE winds around 5 kt. Waves 1 ft or less.
.SUN...SE winds 5 to 10 kt. Waves 1 ft or less. A chance of rain.
.SUN NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. A
chance of rain.
.MON...SW winds 10 to 15 kt...becoming W 20 to 25 kt. Waves 1 to
2 ft. Rain through the day.
.TUE...W winds 20 to 25 kt...diminishing to 10 to 15 kt. Waves 1 to
2 ft.

$$

ANZ539-262100-
Chester River to Queenstown MD-
658 AM EST Fri Dec 26 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM EST THIS MORNING...

.TODAY...NE winds 10 kt...becoming SE this afternoon. Waves 1 ft. A
chance of sleet and rain this afternoon.
.TONIGHT...SE winds 5 to 10 kt...becoming N late. Waves 1 ft. Rain
and sleet. Vsby 1 to 3 NM.
.SAT...N winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft or less.
.SUN...SE winds 5 to 10 kt. Waves 1 ft or less. A chance of rain.
.SUN NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. A
chance of rain.
.MON...SW winds 20 to 25 kt...becoming W 25 to 30 kt. Waves 3 ft.
Rain through the day.
.TUE...W winds 20 to 25 kt...diminishing to 10 to 15 kt after
midnight. Waves 3 ft...subsiding to 2 ft after midnight.

$$

ANZ532-262100-
Chesapeake Bay from Sandy Point to North Beach-
658 AM EST Fri Dec 26 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM EST THIS MORNING...

.TODAY...NE winds 10 to 15 kt with gusts to 20 kt... becoming SE
this afternoon. Waves 1 to 2 ft. A chance of rain, sleet with a
slight chance of freezing rain this afternoon.
.TONIGHT...S winds 10 to 15 kt...becoming SE 5 kt after midnight,
then becoming N late. Waves 1 to 2 ft. Rain. Vsby 1 to 3 NM.
.SAT...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SAT NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the evening.
Waves 1 to 2 ft.
.SUN...SE winds 5 kt...becoming S 10 to 15 kt in the afternoon.
Waves 1 to 2 ft. A chance of rain.
.SUN NIGHT...S winds 20 to 25 kt. Waves 2 to 3 ft. A chance of rain.
.MON...SW winds 25 to 30 kt...becoming W. Waves 3 ft. Rain through
the day.
.TUE...W winds 25 to 30 kt...diminishing to 15 kt after midnight.
Waves 3 ft...subsiding to 2 ft after midnight.

$$

ANZ540-262100-
Eastern Bay-
658 AM EST Fri Dec 26 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM EST THIS MORNING...

.TODAY...NE winds 10 to 15 kt...becoming SE 5 to 10 kt this
afternoon. Waves 1 ft. A chance of sleet and rain this afternoon.
.TONIGHT...SE winds 5 to 10 kt...becoming N late. Waves 1 ft. Rain.
Vsby 1 to 3 NM.
.SAT...N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft or less.
.SUN...SE winds 5 to 10 kt. Waves 1 ft or less. A chance of rain.
.SUN NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft. A
chance of rain.
.MON...SW winds 20 to 25 kt...becoming W 25 to 30 kt. Waves 3 ft.
Rain through the day.
.TUE...NW winds 25 to 30 kt...becoming W 15 to 20 kt. Waves 2 to
3 ft.

$$

ANZ533-262100-
Chesapeake Bay from North Beach to Drum Point-
658 AM EST Fri Dec 26 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM EST THIS MORNING...

.TODAY...NE winds 10 to 15 kt with gusts to 20 kt... becoming SE
this afternoon. Waves 3 ft...subsiding to 1 ft late this morning and
afternoon. A chance of rain with a slight chance of sleet this
afternoon.
.TONIGHT...S winds 10 to 15 kt...becoming SW 5 to 10 kt after
midnight, then becoming N late. Waves 1 to 2 ft. Rain. Vsby 1 to
3 NM.
.SAT...N winds 10 to 15 kt with gusts to 25 kt. Waves 3 ft.
.SAT NIGHT...NE winds 10 to 15 kt with gusts to 20 kt...diminishing
to 5 kt after midnight. Waves 1 to 2 ft.
.SUN...SE winds 10 to 15 kt. Waves 1 to 2 ft. A chance of rain.
.SUN NIGHT...S winds 20 to 25 kt. Waves 2 to 3 ft. A chance of rain.
.MON...SW winds 25 to 30 kt...becoming W. Waves 3 ft...building to
4 ft. Rain through the day.
.TUE...NW winds 25 to 30 kt...becoming W 10 to 15 kt after midnight.
Waves 3 ft...subsiding to 2 ft after midnight.

$$

ANZ541-262100-
Choptank River to Cambridge MD and the Little Choptank River-
658 AM EST Fri Dec 26 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM EST THIS MORNING...

.TODAY...NE winds 10 to 15 kt with gusts to 20 kt... becoming SE
5 to 10 kt this afternoon. Waves 1 to 2 ft. A chance of rain and
sleet this afternoon.
.TONIGHT...S winds 10 to 15 kt...diminishing to 5 kt after midnight,
then becoming N late. Waves 1 ft. Rain. Vsby 1 to 3 NM.
.SAT...N winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.SAT NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the evening.
Waves 1 ft.
.SUN...SE winds 5 to 10 kt. Waves 1 ft. A chance of rain.
.SUN NIGHT...S winds 20 to 25 kt. Waves 2 to 3 ft. A chance of rain.
.MON...SW winds 20 to 25 kt...becoming W 25 to 35 kt. Waves 3 ft.
Rain through the day.
.TUE...NW winds 25 to 30 kt...becoming W 10 to 15 kt after midnight.
Waves 2 to 3 ft.

$$

ANZ542-262100-
Patuxent River to Broomes Island MD-
658 AM EST Fri Dec 26 2025

.TODAY...NE winds 10 kt with gusts to 20 kt...becoming SE this
afternoon. Waves 1 ft. A chance of rain with a slight chance of
sleet this afternoon.
.TONIGHT...S winds 5 to 10 kt...becoming NW late. Waves 1 ft. Rain.
.SAT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...SE winds 5 to 10 kt. Waves 1 ft. A chance of rain.
.SUN NIGHT...S winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft. A
chance of rain.
.MON...SW winds 15 to 20 kt...becoming W. Waves 1 ft. Rain through
the day.
.TUE...NW winds 15 to 20 kt...becoming W 5 to 10 kt after midnight.
Waves 1 ft.

$$

ANZ534-262100-
Chesapeake Bay from Drum Point to Smith Point-
658 AM EST Fri Dec 26 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM EST THIS MORNING...

.TODAY...NE winds 10 to 15 kt with gusts to 20 kt... becoming SE
5 to 10 kt this afternoon. Waves 2 to 3 ft... subsiding to 1 ft this
afternoon. A chance of rain this afternoon.
.TONIGHT...S winds 5 to 10 kt...becoming NW late. Waves 1 ft. Rain.
Vsby 1 to 3 NM.
.SAT...N winds 10 to 15 kt with gusts to 25 kt. Waves 3 ft.
.SAT NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Waves 1 to 2 ft.
.SUN...SE winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Waves 2 to
3 ft. A chance of rain.
.MON...SW winds 20 to 25 kt...becoming NW 25 to 30 kt. Waves 4 ft.
Rain through the day.
.TUE...NW winds 25 to 30 kt...becoming W 15 to 20 kt. Waves 4 ft...
subsiding to 2 to 3 ft.

$$

ANZ543-262100-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
658 AM EST Fri Dec 26 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM EST THIS MORNING...

.TODAY...NE winds 10 to 15 kt with gusts to 20 kt... becoming SE
5 to 10 kt this afternoon. Waves 1 to 2 ft. A slight chance of rain
this afternoon.
.TONIGHT...S winds 5 to 10 kt...becoming NW late. Waves 1 ft. Rain.
Vsby 1 to 3 NM.
.SAT...N winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.SAT NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the evening.
Waves 1 ft.
.SUN...SE winds 5 to 10 kt. Waves 1 ft or less.
.SUN NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.MON...SW winds 20 to 25 kt...becoming NW 25 to 30 kt. Waves 2 to
3 ft. Rain likely through the day.
.TUE...NW winds 25 to 30 kt...becoming W 15 to 20 kt. Waves 2 to
3 ft.

$$



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