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FZUS51 KLWX 021134
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
734 AM EDT Tue Sep 2 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.

ANZ500-022000-
734 AM EDT Tue Sep 2 2025

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

High pressure north of the area will remain in place through the
middle of the week. The next front approaches the waters late
Thursday, followed by a stronger cold front on Saturday. A Small
Craft Advisory may be needed Wednesday night through Friday night,
with the strongest winds expected Thursday into Thursday evening.

$$

ANZ535-022000-
Tidal Potomac from Key Bridge to Indian Head-
734 AM EDT Tue Sep 2 2025

.TODAY...NE winds 5 kt. Waves less than 1 ft.
.TONIGHT...E winds around 5 kt. Waves 1 ft or less.
.WED...S winds around 5 kt. Waves 1 ft or less.
.WED NIGHT...S winds 5 kt. Waves less than 1 ft.
.THU...S winds 5 to 10 kt. Gusts up to 25 kt in the afternoon. Waves
1 ft. A chance of showers.
.THU NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt in the evening.
Waves 1 ft. A chance of showers.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.SAT...NW winds 5 to 10 kt. Waves 1 ft. A chance of showers.

$$

ANZ536-022000-
Tidal Potomac from Indian Head to Cobb Island-
734 AM EDT Tue Sep 2 2025

.TODAY...NE winds 5 kt. Waves less than 1 ft.
.TONIGHT...E winds around 5 kt. Waves 1 ft or less.
.WED...S winds around 5 kt. Waves 1 ft or less.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.THU NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt in the evening.
Waves 1 ft. A chance of showers.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.SAT...W winds 5 to 10 kt...becoming N. Waves 1 ft. A chance of
showers.

$$

ANZ537-022000-
Tidal Potomac from Cobb Island to Smith Point-
734 AM EDT Tue Sep 2 2025

.TODAY...NE winds 5 to 10 kt. Waves 1 to 2 ft.
.TONIGHT...NE winds around 5 kt. Waves 1 ft or less.
.WED...NE winds around 5 kt. Waves 1 ft or less.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.THU NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.FRI...S winds 10 to 15 kt. Waves 1 ft.
.SAT...SW winds 5 to 10 kt...becoming NE. Waves 1 ft. A chance of
showers through the night.

$$

ANZ530-022000-
Chesapeake Bay north of Pooles Island-
734 AM EDT Tue Sep 2 2025

.TODAY...NE winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...SE winds around 5 kt. Waves 1 ft or less.
.WED...SE winds around 5 kt. Waves 1 ft or less.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.THU NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. A
chance of showers.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.SAT...W winds 5 to 10 kt. Waves 1 ft. A chance of showers.

$$

ANZ531-022000-
Chesapeake Bay from Pooles Island to Sandy Point-
734 AM EDT Tue Sep 2 2025

.TODAY...NE winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...SE winds around 5 kt. Waves flat.
.WED...E winds around 5 kt. Waves 1 ft or less.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.THU NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A
chance of showers.
.FRI...SW winds 10 to 15 kt. Waves 1 to 2 ft.
.SAT...W winds 5 to 10 kt. Waves 1 ft. A chance of showers.

$$

ANZ538-022000-
Patapsco River including Baltimore Harbor-
734 AM EDT Tue Sep 2 2025

.TODAY...NE winds 5 kt. Waves less than 1 ft.
.TONIGHT...SE winds around 5 kt. Waves flat.
.WED...E winds around 5 kt. Waves flat.
.WED NIGHT...S winds 5 kt. Waves less than 1 ft.
.THU...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. A chance
of showers.
.THU NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. A
chance of showers.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.SAT...W winds 5 to 10 kt. Waves 1 ft or less. A chance of showers.

$$

ANZ539-022000-
Chester River to Queenstown MD-
734 AM EDT Tue Sep 2 2025

.TODAY...NE winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...E winds around 5 kt. Waves flat.
.WED...SE winds around 5 kt. Waves flat.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.THU NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft. A chance of showers.
.FRI...S winds 5 to 10 kt. Waves 1 ft.
.SAT...W winds 5 to 10 kt. Waves 1 ft. A chance of showers.

$$

ANZ532-022000-
Chesapeake Bay from Sandy Point to North Beach-
734 AM EDT Tue Sep 2 2025

.TODAY...NE winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...E winds around 5 kt. Waves flat.
.WED...E winds around 5 kt. Waves flat.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft.
.THU NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 to
3 ft. A chance of showers.
.FRI...SW winds 10 to 15 kt. Waves 1 to 2 ft.
.SAT...W winds 5 to 10 kt. Waves 1 ft. A chance of showers.

$$

ANZ540-022000-
Eastern Bay-
734 AM EDT Tue Sep 2 2025

.TODAY...NE winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...E winds around 5 kt. Waves flat.
.WED...SE winds around 5 kt. Waves flat.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.THU NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft. A chance of showers.
.FRI...S winds 5 to 10 kt. Waves 1 ft.
.SAT...W winds 5 to 10 kt...becoming N after midnight. Waves 1 ft. A
chance of showers.

$$

ANZ533-022000-
Chesapeake Bay from North Beach to Drum Point-
734 AM EDT Tue Sep 2 2025

.TODAY...NE winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...E winds around 5 kt. Waves 1 ft or less.
.WED...E winds around 5 kt. Waves flat.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...S winds 10 kt...increasing to 15 to 20 kt in the afternoon.
Waves 1 ft...building to 3 ft in the afternoon.
.THU NIGHT...S winds 15 to 20 kt. Waves 2 to 3 ft. A chance of
showers.
.FRI...S winds 10 to 15 kt. Waves 1 to 2 ft.
.SAT...SW winds 5 to 10 kt...becoming N after midnight. Waves 1 to
2 ft. A chance of showers.

$$

ANZ541-022000-
Choptank River to Cambridge MD and the Little Choptank River-
734 AM EDT Tue Sep 2 2025

.TODAY...N winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...E winds around 5 kt. Waves flat.
.WED...SE winds around 5 kt. Waves flat.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...S winds 10 kt...increasing to 15 to 20 kt in the afternoon.
Waves 1 to 2 ft.
.THU NIGHT...S winds 15 to 20 kt. Waves 2 ft. A chance of showers.
.FRI...S winds 10 to 15 kt. Waves 1 ft.
.SAT...SW winds 5 to 10 kt...becoming N after midnight. Waves 1 ft.
A chance of showers.

$$

ANZ542-022000-
Patuxent River to Broomes Island MD-
734 AM EDT Tue Sep 2 2025

.TODAY...NE winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...NE winds around 5 kt. Waves 1 ft.
.WED...NE winds around 5 kt. Waves 1 ft.
.WED NIGHT...S winds 5 kt. Waves less than 1 ft.
.THU...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.THU NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. A
chance of showers.
.FRI...S winds 5 to 10 kt. Waves 1 ft.
.SAT...SW winds 5 to 10 kt...becoming E in the evening, then
becoming N after midnight. Waves 1 ft. A chance of showers.

$$

ANZ534-022000-
Chesapeake Bay from Drum Point to Smith Point-
734 AM EDT Tue Sep 2 2025

.TODAY...N winds 10 to 15 kt...diminishing to 5 kt late. Waves 1 to
2 ft.
.TONIGHT...NE winds around 5 kt. Waves 1 ft or less.
.WED...NE winds 5 kt. Waves less than 1 ft.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...S winds 10 kt...increasing to 15 to 20 kt in the afternoon.
Waves 2 to 3 ft.
.THU NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.FRI...S winds 10 to 15 kt. Waves 2 ft.
.SAT...SW winds 10 kt...becoming SE in the evening, then becoming N
after midnight. Waves 2 ft. A chance of showers through the night.

$$

ANZ543-022000-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
734 AM EDT Tue Sep 2 2025

.TODAY...N winds 10 kt. Waves 1 ft.
.TONIGHT...NE winds 5 kt. Waves less than 1 ft.
.WED...NW winds 5 kt. Waves flat.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.THU NIGHT...S winds 15 to 20 kt. Waves 2 ft.
.FRI...S winds 10 to 15 kt. Waves 1 to 2 ft.
.SAT...S winds 10 kt...becoming N after midnight. Waves 1 ft. A
chance of showers through the night.

$$