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FZUS51 KLWX 010258
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1057 PM EDT Wed Sep 30 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.

ANZ500-010800-
1057 PM EDT Wed Sep 30 2026

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

High pressure will move offshore through the end of the week as a
cold front approaches from the west. This front will stall near the
area this weekend when a wave of low pressure may pass nearby or to
the south. High pressure will likely return early next week. Small
Craft Advisories may be needed at times in south to southwest flow
Thursday evening through Friday afternoon, then in northerly flow
Friday night into Saturday. Additional Small Craft Advisories are
likely Monday into Tuesday.

$$

ANZ535-010800-
Tidal Potomac from Key Bridge to Indian Head-
1057 PM EDT Wed Sep 30 2026

.REST OF TONIGHT...S winds 5 kt. Waves less than 1 ft.
.THU...SW winds 5 kt. Waves less than 1 ft.
.THU NIGHT...S winds 5 kt. Waves less than 1 ft.
.FRI...SW winds 5 kt. Waves less than 1 ft.
.FRI NIGHT...NW winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SAT...N winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...NE winds around 5 kt. Waves 1 ft. A chance of showers.
.SUN...SE winds around 5 kt. Waves 1 ft or less. A chance of
showers.
.MON...N winds 5 to 10 kt. Waves 1 ft.

$$

ANZ536-010800-
Tidal Potomac from Indian Head to Cobb Island-
1057 PM EDT Wed Sep 30 2026

.REST OF TONIGHT...S winds 5 kt. Waves less than 1 ft.
.THU...SW winds 5 kt. Waves less than 1 ft.
.THU NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...NW winds 10 to 15 kt. Waves 1 ft. A chance of showers.
.SAT...N winds 10 to 15 kt. Waves 1 ft.
.SAT NIGHT...NE winds around 5 kt. Waves 1 ft. A chance of showers.
.SUN...E winds around 5 kt. Waves 1 ft. A chance of showers.
.MON...N winds 10 to 15 kt. Waves 1 ft.

$$

ANZ537-010800-
Tidal Potomac from Cobb Island to Smith Point-
1057 PM EDT Wed Sep 30 2026

.REST OF TONIGHT...S winds 10 kt. Waves 1 ft. Patchy fog with vsby
1 to 3 NM.
.THU...SW winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...W winds 5 to 10 kt...becoming N 10 to 15 kt after
midnight. Gusts up to 20 kt. Waves 1 to 2 ft.
.SAT...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SUN...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.MON...N winds 15 to 20 kt. Waves 1 to 2 ft...building to 3 ft after
midnight. A chance of showers in the morning.

$$

ANZ530-010800-
Chesapeake Bay north of Pooles Island-
1057 PM EDT Wed Sep 30 2026

.REST OF TONIGHT...S winds 5 kt. Waves less than 1 ft.
.THU...SW winds 5 kt. Waves less than 1 ft.
.THU NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt. Waves 1 ft. A
chance of showers.
.SAT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SAT NIGHT...NE winds around 5 kt. Waves 1 ft.
.SUN...SE winds 5 to 10 kt...becoming SW after midnight. Waves 1 ft.
A chance of showers.
.MON...N winds 10 to 15 kt. Waves 1 ft.

$$

ANZ531-010800-
Chesapeake Bay from Pooles Island to Sandy Point-
1057 PM EDT Wed Sep 30 2026

.REST OF TONIGHT...S winds 10 kt. Waves 1 ft.
.THU...S winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...W winds 10 kt...becoming N 15 to 20 kt after midnight.
Waves 1 to 2 ft. A chance of showers.
.SAT...N winds 15 to 20 kt...becoming NE 5 to 10 kt in the
afternoon. Waves 2 ft.
.SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SUN...E winds 5 to 10 kt...becoming SW after midnight. Waves 1 ft
or less. A chance of showers.
.MON...NW winds 5 to 10 kt...becoming N 15 to 20 kt. Waves 1 to
2 ft...building to 3 ft after midnight.

$$

ANZ538-010800-
Patapsco River including Baltimore Harbor-
1057 PM EDT Wed Sep 30 2026

.REST OF TONIGHT...S winds 5 kt. Waves less than 1 ft.
.THU...S winds 5 kt. Waves less than 1 ft.
.THU NIGHT...S winds 5 kt. Waves less than 1 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft or less.
.FRI NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt. Waves 1 ft. A
chance of showers.
.SAT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SAT NIGHT...NE winds 5 kt. Waves flat.
.SUN...SE winds around 5 kt. Waves 1 ft or less. A chance of
showers.
.MON...N winds 10 to 15 kt. Waves 1 ft or less.

$$

ANZ539-010800-
Chester River to Queenstown MD-
1057 PM EDT Wed Sep 30 2026

.REST OF TONIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...S winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt. Waves 1 to
2 ft. A chance of showers.
.SAT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.SAT NIGHT...E winds 5 kt. Waves less than 1 ft.
.SUN...SE winds around 5 kt. Waves 1 ft or less. A chance of
showers.
.MON...NW winds 10 to 15 kt...becoming N after midnight. Waves 1 to
2 ft.

$$

ANZ532-010800-
Chesapeake Bay from Sandy Point to North Beach-
1057 PM EDT Wed Sep 30 2026

.REST OF TONIGHT...S winds 10 kt. Waves 1 ft.
.THU...S winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...W winds 5 to 10 kt...becoming N 15 to 20 kt after
midnight. Waves 1 to 2 ft. A chance of showers.
.SAT...N winds 15 to 20 kt. Waves 2 to 3 ft.
.SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SUN...E winds 5 to 10 kt...becoming SW after midnight. Waves 1 ft
or less. A chance of showers.
.MON...NW winds 5 to 10 kt...becoming N 20 to 25 kt. Waves 1 to
2 ft...building to 3 ft after midnight.

$$

ANZ540-010800-
Eastern Bay-
1057 PM EDT Wed Sep 30 2026

.REST OF TONIGHT...S winds 10 kt. Waves 1 ft.
.THU...S winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft. A chance of showers.
.SAT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.SAT NIGHT...E winds 5 kt. Waves less than 1 ft.
.SUN...E winds 5 to 10 kt...becoming SW after midnight. Waves 1 ft
or less. A chance of showers.
.MON...N winds 10 to 15 kt...increasing to 15 to 20 kt after
midnight. Waves 1 to 2 ft.

$$

ANZ533-010800-
Chesapeake Bay from North Beach to Drum Point-
1057 PM EDT Wed Sep 30 2026

.REST OF TONIGHT...S winds 10 kt. Waves 1 ft.
.THU...S winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...W winds 5 to 10 kt...becoming N 15 to 20 kt with gusts
to 25 kt after midnight. Waves 1 ft... building to 3 ft after
midnight.
.SAT...N winds 15 to 20 kt. Gusts up to 25 kt in the morning. Waves
2 to 3 ft.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...E winds 5 to 10 kt...becoming W after midnight. Waves 1 ft or
less. A chance of showers.
.MON...N winds 5 to 10 kt...increasing to 20 to 25 kt. Waves 1 to
2 ft...building to 3 ft.

$$

ANZ541-010800-
Choptank River to Cambridge MD and the Little Choptank River-
1057 PM EDT Wed Sep 30 2026

.REST OF TONIGHT...S winds 10 kt. Waves 1 ft.
.THU...S winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...W winds 5 to 10 kt...becoming N 15 to 20 kt after
midnight. Waves 1 to 2 ft. A chance of showers.
.SAT...N winds 15 to 20 kt. Waves 1 to 2 ft.
.SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SUN...E winds 5 to 10 kt...becoming SW after midnight. Waves 1 ft
or less. A chance of showers.
.MON...NW winds 5 to 10 kt...becoming N 20 to 25 kt. Waves 1 to
2 ft...building to 3 ft after midnight.

$$

ANZ542-010800-
Patuxent River to Broomes Island MD-
1057 PM EDT Wed Sep 30 2026

.REST OF TONIGHT...S winds 5 kt. Waves less than 1 ft. Patchy fog
with vsby 1 to 3 NM.
.THU...SW winds 5 kt. Waves less than 1 ft. Patchy fog. Vsby 1 to
3 NM.
.THU NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...W winds 5 kt...becoming N 10 to 15 kt with gusts to
20 kt after midnight. Waves 1 ft.
.SAT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SAT NIGHT...NE winds 5 kt. Waves less than 1 ft. A chance of
showers.
.SUN...NE winds around 5 kt. Waves 1 ft. A chance of showers.
.MON...N winds 10 to 15 kt. Waves 1 ft. A chance of showers in the
morning.

$$

ANZ534-010800-
Chesapeake Bay from Drum Point to Smith Point-
1057 PM EDT Wed Sep 30 2026

.REST OF TONIGHT...S winds 10 kt. Waves 2 ft.
.THU...S winds 5 to 10 kt. Waves 1 to 2 ft.
.THU NIGHT...S winds 10 to 15 kt. Waves 2 ft.
.FRI...SW winds 10 to 15 kt. Waves 2 ft.
.FRI NIGHT...SW winds 10 kt...becoming N 15 to 20 kt after midnight.
Waves 2 ft.
.SAT...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.SAT NIGHT...NE winds 10 kt. Waves 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.MON...N winds 5 to 10 kt...increasing to 20 to 25 kt. Waves 1 to
2 ft...building to 3 ft. A chance of showers in the morning.

$$

ANZ543-010800-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1057 PM EDT Wed Sep 30 2026

.REST OF TONIGHT...S winds 10 kt. Waves 1 ft.
.THU...S winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.FRI...SW winds 10 to 15 kt. Waves 1 ft.
.FRI NIGHT...SW winds 10 to 15 kt...becoming NW after midnight.
Gusts up to 20 kt. Waves 1 to 2 ft.
.SAT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.MON...N winds 5 to 10 kt...increasing to 15 to 20 kt. Waves 1 to
2 ft. A chance of showers in the morning.

$$