865
FZUS51 KLWX 012147
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
547 PM EDT Thu Oct 1 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.

ANZ500-020900-
547 PM EDT Thu Oct 1 2026

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

High pressure will move offshore through Friday 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 to the south. A second
cold front will cross the area on Monday. Small Craft Advisories may
 be needed in northerly flow Friday night into Saturday. Additional
Small Craft Advisories are likely Monday into Tuesday.

$$

ANZ535-020900-
Tidal Potomac from Key Bridge to Indian Head-
547 PM EDT Thu Oct 1 2026

.TONIGHT...S winds 5 kt. Waves less than 1 ft.
.FRI...SW winds 5 kt. Waves less than 1 ft.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SAT...N winds 5 to 10 kt. Waves 1 ft. Showers likely.
.SAT NIGHT...NE winds around 5 kt. Waves 1 ft. A chance of showers.
.SUN...NE winds 5 kt. Waves less than 1 ft. Showers.
.SUN NIGHT...N winds around 5 kt. Waves 1 ft.
.MON...NW winds 5 to 10 kt. Waves 1 ft.
.TUE...N winds 5 to 10 kt...becoming light. Waves 1 ft or less.

$$

ANZ536-020900-
Tidal Potomac from Indian Head to Cobb Island-
547 PM EDT Thu Oct 1 2026

.TONIGHT...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...becoming N late. Waves 1 ft. A
chance of showers.
.SAT...N winds 5 to 10 kt. Waves 1 ft. Showers likely.
.SAT NIGHT...NE winds around 5 kt. Waves 1 ft. Showers likely.
.SUN...NE winds around 5 kt. Waves 1 ft. Showers.
.SUN NIGHT...N winds around 5 kt. Waves 1 ft.
.MON...NW winds 5 to 10 kt. Waves 1 ft.
.TUE...N winds 5 to 10 kt. Waves 1 ft or less.

$$

ANZ537-020900-
Tidal Potomac from Cobb Island to Smith Point-
547 PM EDT Thu Oct 1 2026

.TONIGHT...S winds 10 kt. Waves 1 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...SW winds 5 to 10 kt...becoming NW 10 to 15 kt in the
late evening and early morning, then becoming N with gusts to 20 kt
late. Waves 1 to 2 ft.
.SAT...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Showers
likely.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. Showers likely.
.SUN...NE winds 5 to 10 kt. Waves 1 ft. Showers with a chance of
tstms.
.SUN NIGHT...N 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.
.TUE...N winds 10 to 15 kt...diminishing to around 5 kt. Waves 1 to
2 ft...subsiding to flat after midnight.

Winds and waves higher and visibilities lower in and near tstms.

$$

ANZ530-020900-
Chesapeake Bay north of Pooles Island-
547 PM EDT Thu Oct 1 2026

.TONIGHT...S winds 5 to 10 kt. Waves 1 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.FRI NIGHT...NW winds 10 to 15 kt...becoming N late. Gusts up to
20 kt. Waves 1 ft. A chance of showers.
.SAT...N winds 10 to 15 kt. Waves 1 ft.
.SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft or less.
.SUN...E winds 5 to 10 kt. Waves 1 ft. Showers likely.
.SUN NIGHT...N winds 5 kt. Waves less than 1 ft.
.MON...NW winds 10 to 15 kt. Waves 1 ft.
.TUE...N winds 5 to 10 kt. Waves 1 ft or less.

$$

ANZ531-020900-
Chesapeake Bay from Pooles Island to Sandy Point-
547 PM EDT Thu Oct 1 2026

.TONIGHT...S winds 10 kt. Waves 1 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...N winds 15 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. A
chance of showers.
.SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SUN...E winds 5 to 10 kt. Waves 1 ft. Showers likely.
.SUN NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 15 to 20 kt. Waves 1 to 2 ft.
.TUE...N winds 10 to 15 kt...diminishing to around 5 kt. Waves 1 to
2 ft...subsiding to flat after midnight.

$$

ANZ538-020900-
Patapsco River including Baltimore Harbor-
547 PM EDT Thu Oct 1 2026

.TONIGHT...S winds 5 to 10 kt. Waves 1 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft or less.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SAT...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SAT NIGHT...E winds 5 kt. Waves less than 1 ft. A chance of
showers.
.SUN...E winds 5 to 10 kt. Waves 1 ft. Showers likely.
.SUN NIGHT...N winds around 5 kt. Waves 1 ft or less.
.MON...NW winds 10 to 15 kt. Waves 1 ft.
.TUE...N winds 5 to 10 kt...becoming light. Waves 1 ft or less.

$$

ANZ539-020900-
Chester River to Queenstown MD-
547 PM EDT Thu Oct 1 2026

.TONIGHT...S winds 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...becoming N
with gusts to 20 kt late. 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. A
chance of showers.
.SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft or less. A chance of
showers.
.SUN...E winds 5 to 10 kt. Waves 1 ft. Showers.
.SUN NIGHT...N winds 5 kt. Waves less than 1 ft. A chance of
showers.
.MON...NW winds 10 to 15 kt. Waves 1 to 2 ft.
.TUE...N winds 10 to 15 kt...diminishing to around 5 kt. Waves 1 to
2 ft...subsiding to flat.

$$

ANZ532-020900-
Chesapeake Bay from Sandy Point to North Beach-
547 PM EDT Thu Oct 1 2026

.TONIGHT...S winds 10 kt. Waves 1 to 2 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...NW 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...becoming NE 5 to 10 kt in the
afternoon. Waves 2 ft. A chance of showers.
.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. Showers.
.SUN NIGHT...N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.MON...NW winds 15 to 20 kt. Waves 1 to 2 ft...building to 3 ft
after midnight.
.TUE...N winds 15 to 20 kt...diminishing to 5 to 10 kt. Waves 1 to
2 ft...subsiding to flat after midnight.

$$

ANZ540-020900-
Eastern Bay-
547 PM EDT Thu Oct 1 2026

.TONIGHT...S winds 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...becoming N
with gusts to 20 kt late. 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. A
chance of showers.
.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. Showers.
.SUN NIGHT...N winds 5 kt. Waves less than 1 ft. A chance of
showers.
.MON...NW winds 15 to 20 kt. Waves 1 to 2 ft.
.TUE...N winds 10 to 15 kt...diminishing to around 5 kt. Waves 1 to
2 ft...subsiding to flat.

$$

ANZ533-020900-
Chesapeake Bay from North Beach to Drum Point-
547 PM EDT Thu Oct 1 2026

.TONIGHT...S winds 10 kt. Waves 1 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...SW winds 5 to 10 kt...becoming N late in the evening,
then increasing to 15 to 20 kt after midnight. Waves 1 ft...building
to 3 ft after midnight. A chance of showers.
.SAT...N winds 15 to 20 kt. Waves 2 to 3 ft. Showers likely.
.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. Showers.
.SUN NIGHT...N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.MON...NW winds 20 to 25 kt. Waves 1 to 2 ft...building to 3 ft.
.TUE...N winds 15 to 20 kt...diminishing to around 5 kt. Waves 2 to
3 ft...subsiding to 1 ft or less.

$$

ANZ541-020900-
Choptank River to Cambridge MD and the Little Choptank River-
547 PM EDT Thu Oct 1 2026

.TONIGHT...S winds 10 kt. Waves 1 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...SW winds 5 to 10 kt...becoming N late in the evening,
then increasing to 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 1 to 2 ft. Showers likely.
.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. Showers.
.SUN NIGHT...N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.MON...NW winds 5 to 10 kt...becoming N 15 to 20 kt. Waves 1 to
2 ft.
.TUE...N winds 15 to 20 kt...diminishing to 5 to 10 kt. Waves 1 to
2 ft...subsiding to flat after midnight.

$$

ANZ542-020900-
Patuxent River to Broomes Island MD-
547 PM EDT Thu Oct 1 2026

.TONIGHT...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. A chance of showers.
.SAT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. Showers
likely.
.SAT NIGHT...NE winds 5 kt. Waves less than 1 ft. Showers likely.
.SUN...NE winds 5 kt. Waves less than 1 ft. Showers.
.SUN NIGHT...N winds around 5 kt. Waves 1 ft. A chance of showers.
.MON...NW winds 10 to 15 kt. Waves 1 ft.
.TUE...N winds 5 to 10 kt. Waves 1 ft.

$$

ANZ534-020900-
Chesapeake Bay from Drum Point to Smith Point-
547 PM EDT Thu Oct 1 2026

.TONIGHT...S winds 10 to 15 kt. Waves 2 ft.
.FRI...SW winds 10 to 15 kt. Waves 2 ft.
.FRI NIGHT...S winds 10 kt...becoming NW in the late evening and
early morning, then becoming N 15 to 20 kt late. Waves 1 ft...
building to 3 ft after midnight. A chance of showers.
.SAT...N winds 15 to 20 kt. Waves 2 to 3 ft. Showers likely.
.SAT NIGHT...NE winds 10 kt. Waves 1 to 2 ft. Showers likely.
.SUN...NE winds 5 to 10 kt. Waves 1 to 2 ft. Showers with a chance
of tstms.
.SUN NIGHT...N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.MON...N winds 20 to 25 kt. Waves 2 to 3 ft...building to 4 ft after
midnight.
.TUE...N winds 15 to 20 kt...becoming NE 5 to 10 kt. Waves 3 ft...
subsiding to 1 ft.

Winds and waves higher and visibilities lower in and near tstms.

$$

ANZ543-020900-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
547 PM EDT Thu Oct 1 2026

.TONIGHT...S winds 15 kt. Waves 1 ft.
.FRI...SW winds 10 to 15 kt. Waves 1 ft.
.FRI NIGHT...SW winds 10 kt...becoming N after midnight. Gusts up to
20 kt. Waves 1 ft.
.SAT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Showers likely.
.SAT NIGHT...NE winds 10 kt. Waves 1 ft. Showers likely.
.SUN...NE winds 5 to 10 kt. Waves 1 ft. Showers with a chance of
tstms.
.SUN NIGHT...N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.MON...N winds 15 to 20 kt. Waves 1 to 2 ft.
.TUE...N winds 15 to 20 kt...becoming NE 5 to 10 kt. Waves 1 to
2 ft.

Winds and waves higher and visibilities lower in and near tstms.

$$