National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Coastal Waters Forecast
Issued by NWS Sterling, VA

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FZUS51 KLWX 060234
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1034 PM EDT Tue Aug 5 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.

ANZ500-060800-
1034 PM EDT Tue Aug 5 2025

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

High pressure will remain anchored to the north through Thursday.
Meanwhile, a broad area of low pressure could form off the
Southeastern U.S. Friday and drift west to northwest toward the
coast this weekend. Small Craft Advisory conditions are possible
beginning Wednesday night and continuing through the end of the
week.

$$

ANZ535-060800-
Tidal Potomac from Key Bridge to Indian Head-
1034 PM EDT Tue Aug 5 2025

.REST OF TONIGHT...Light winds. Waves flat.
.WED...E winds around 5 kt. Waves 1 ft. A chance of showers.
.WED NIGHT...E winds 5 kt. Waves less than 1 ft.
.THU...E winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 kt. Waves less than 1 ft.
.FRI NIGHT...E winds around 5 kt. Waves 1 ft.
.SAT...E winds around 5 kt. Waves 1 ft.
.SUN...E winds around 5 kt. Waves 1 ft.

$$

ANZ536-060800-
Tidal Potomac from Indian Head to Cobb Island-
1034 PM EDT Tue Aug 5 2025

.REST OF TONIGHT...E winds 5 kt. Waves less than 1 ft.
.WED...E winds around 5 kt. Waves 1 ft. A chance of showers.
.WED NIGHT...E winds 5 kt. Waves less than 1 ft. A chance of
showers.
.THU...E winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...E winds around 5 kt. Waves 1 ft.
.SUN...E winds around 5 kt. Waves 1 ft.

$$

ANZ537-060800-
Tidal Potomac from Cobb Island to Smith Point-
1034 PM EDT Tue Aug 5 2025

.REST OF TONIGHT...E winds 5 kt. Waves less than 1 ft.
.WED...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.WED NIGHT...E winds 10 to 15 kt. Waves 2 ft. A chance of showers.
.THU...E winds 10 to 15 kt. Waves 2 ft.
.THU NIGHT...E winds 10 to 15 kt. Waves 2 ft.
.FRI...E winds 10 to 15 kt. Waves 2 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 2 ft.
.SAT...E winds 5 to 10 kt. Waves 1 ft.
.SUN...E winds 5 to 10 kt...becoming SE after midnight. Waves 1 ft.

$$

ANZ530-060800-
Chesapeake Bay north of Pooles Island-
1034 PM EDT Tue Aug 5 2025

.REST OF TONIGHT...E winds 5 kt. Waves less than 1 ft.
.WED...E winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...E winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...E winds 5 kt. Waves less than 1 ft.
.SUN...SE winds 5 kt. Waves less than 1 ft.

$$

ANZ531-060800-
Chesapeake Bay from Pooles Island to Sandy Point-
1034 PM EDT Tue Aug 5 2025

.REST OF TONIGHT...SE winds 5 kt. Waves less than 1 ft.
.WED...E winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...E winds 10 kt. Waves 1 ft.
.THU NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...E winds 5 to 10 kt. Waves 1 ft.
.SUN...SE winds 5 kt. Waves less than 1 ft.

$$

ANZ538-060800-
Patapsco River including Baltimore Harbor-
1034 PM EDT Tue Aug 5 2025

.REST OF TONIGHT...SE winds 5 kt. Waves flat.
.WED...E winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...E winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...E winds around 5 kt. Waves 1 ft or less.
.SUN...SE winds around 5 kt. Waves 1 ft or less.

$$

ANZ539-060800-
Chester River to Queenstown MD-
1034 PM EDT Tue Aug 5 2025

.REST OF TONIGHT...E winds 5 kt. Waves flat.
.WED...E winds 5 kt. Waves less than 1 ft.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...E winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...E winds 5 kt. Waves less than 1 ft.
.SUN...E winds 5 kt. Waves flat.

$$

ANZ532-060800-
Chesapeake Bay from Sandy Point to North Beach-
1034 PM EDT Tue Aug 5 2025

.REST OF TONIGHT...SE winds 5 kt. Waves less than 1 ft.
.WED...E winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...E winds 10 kt. Waves 1 ft.
.THU...E winds 10 kt. Waves 1 ft.
.THU NIGHT...E winds 5 to 10 kt. Waves 1 to 2 ft.
.FRI...E winds 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...E winds 5 to 10 kt. Waves 1 ft.
.SUN...E winds 5 kt. Waves less than 1 ft.

$$

ANZ540-060800-
Eastern Bay-
1034 PM EDT Tue Aug 5 2025

.REST OF TONIGHT...E winds 5 kt. Waves flat.
.WED...E winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...E winds 10 kt. Waves 1 ft.
.THU NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...E winds 5 to 10 kt. Waves 1 ft.
.SUN...E winds 5 kt. Waves flat.

$$

ANZ533-060800-
Chesapeake Bay from North Beach to Drum Point-
1034 PM EDT Tue Aug 5 2025

.REST OF TONIGHT...E winds 5 kt. Waves less than 1 ft.
.WED...E winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...E winds 10 kt. Waves 1 ft.
.THU...E winds 10 kt. Waves 1 to 2 ft.
.THU NIGHT...E winds 10 to 15 kt. Waves 1 to 2 ft.
.FRI...E winds 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...E winds 5 to 10 kt. Waves 1 ft.
.SUN...E winds 5 to 10 kt...becoming SE after midnight. Waves 1 ft.

$$

ANZ541-060800-
Choptank River to Cambridge MD and the Little Choptank River-
1034 PM EDT Tue Aug 5 2025

.REST OF TONIGHT...E winds 5 kt. Waves flat.
.WED...E winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...E winds 10 kt. Waves 1 ft.
.THU NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...E winds 5 to 10 kt. Waves 1 ft.
.SUN...E winds 5 kt. Waves less than 1 ft.

$$

ANZ542-060800-
Patuxent River to Broomes Island MD-
1034 PM EDT Tue Aug 5 2025

.REST OF TONIGHT...E winds 5 kt. Waves less than 1 ft.
.WED...E winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...E winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...E winds 5 to 10 kt. Waves 1 ft.
.SUN...E winds around 5 kt. Waves 1 ft.

$$

ANZ534-060800-
Chesapeake Bay from Drum Point to Smith Point-
1034 PM EDT Tue Aug 5 2025

.REST OF TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.WED...E winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...E winds 10 to 15 kt. Waves 2 ft.
.THU...E winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.THU NIGHT...E winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.FRI...E winds 10 to 15 kt. Waves 2 ft.
.FRI NIGHT...E winds 10 to 15 kt. Waves 2 ft.
.SAT...E winds 5 to 10 kt. Waves 1 to 2 ft.
.SUN...E winds 5 to 10 kt. Waves 1 ft.

$$

ANZ543-060800-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1034 PM EDT Tue Aug 5 2025

.REST OF TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.WED...E winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...NE winds 10 kt. Waves 1 ft.
.THU...E winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.THU NIGHT...E winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.FRI...E winds 10 to 15 kt. Waves 1 ft.
.FRI NIGHT...E winds 10 to 15 kt. Waves 1 ft.
.SAT...E winds 5 to 10 kt. Waves 1 ft.
.SUN...E winds 5 to 10 kt. Waves 1 ft.

$$