402
FZUS51 KLWX 011827
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
227 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.

ANZ500-020800-
227 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 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. No marine hazards are expected by the middle of next week.

$$

ANZ535-020800-
Tidal Potomac from Key Bridge to Indian Head-
227 PM EDT Thu Oct 1 2026

.THIS AFTERNOON...SW winds 5 kt. Waves less than 1 ft.
.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 around 5 kt. Waves 1 ft. Showers.
.MON...NW winds 5 to 10 kt. Waves 1 ft.

$$

ANZ536-020800-
Tidal Potomac from Indian Head to Cobb Island-
227 PM EDT Thu Oct 1 2026

.THIS AFTERNOON...SW winds 5 kt. Waves less than 1 ft.
.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. 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...N winds around 5 kt. Waves 1 ft. Showers.
.MON...NW winds 5 to 10 kt. Waves 1 ft.

$$

ANZ537-020800-
Tidal Potomac from Cobb Island to Smith Point-
227 PM EDT Thu Oct 1 2026

.THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft.
.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 to 10 kt...becoming N 10 to 15 kt with gusts
to 20 kt after midnight. 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...N winds 5 to 10 kt. Waves 1 ft. Showers with a chance of
tstms, then a chance of showers after midnight.
.MON...N winds 15 to 20 kt. Waves 1 to 2 ft...building to 3 ft after
midnight.

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

$$

ANZ530-020800-
Chesapeake Bay north of Pooles Island-
227 PM EDT Thu Oct 1 2026

.THIS AFTERNOON...SW winds 5 kt. Waves less than 1 ft.
.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...N winds 10 to 15 kt with gusts 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.
.SUN...NE winds 5 to 10 kt. Waves 1 ft. Showers likely.
.MON...NW winds 10 to 15 kt. Waves 1 ft.

$$

ANZ531-020800-
Chesapeake Bay from Pooles Island to Sandy Point-
227 PM EDT Thu Oct 1 2026

.THIS AFTERNOON...S winds 10 kt. Waves 1 ft.
.TONIGHT...S winds 5 to 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...NE winds 5 to 10 kt. Waves 1 ft. Showers likely through the
day.
.MON...NW winds 15 to 20 kt. Waves 1 to 2 ft.

$$

ANZ538-020800-
Patapsco River including Baltimore Harbor-
227 PM EDT Thu Oct 1 2026

.THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft.
.TONIGHT...S winds 5 kt. Waves less than 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...NE winds 5 to 10 kt. Waves 1 ft or less. Showers likely.
.MON...NW winds 10 to 15 kt. Waves 1 ft.

$$

ANZ539-020800-
Chester River to Queenstown MD-
227 PM EDT Thu Oct 1 2026

.THIS AFTERNOON...S winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...N 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. A
chance of showers.
.SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft or less. A chance of
showers.
.SUN...NE winds 5 to 10 kt. Waves 1 ft or less. Showers. A chance of
showers after midnight.
.MON...NW winds 10 to 15 kt. Waves 1 to 2 ft.

$$

ANZ532-020800-
Chesapeake Bay from Sandy Point to North Beach-
227 PM EDT Thu Oct 1 2026

.THIS AFTERNOON...S winds 10 kt. Waves 1 ft.
.TONIGHT...S winds 5 to 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.
.MON...NW winds 15 to 20 kt. Waves 1 to 2 ft...building to 3 ft
after midnight.

$$

ANZ540-020800-
Eastern Bay-
227 PM EDT Thu Oct 1 2026

.THIS AFTERNOON...S winds 10 kt. Waves 1 ft.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft.
.FRI...SW winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...N 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. 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 or less. Showers.
.MON...NW winds 15 to 20 kt. Waves 1 to 2 ft.

$$

ANZ533-020800-
Chesapeake Bay from North Beach to Drum Point-
227 PM EDT Thu Oct 1 2026

.THIS AFTERNOON...S winds 10 kt. Waves 1 ft.
.TONIGHT...S winds 5 to 10 kt. Waves 1 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 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.
.MON...NW winds 20 to 25 kt. Waves 1 to 2 ft...building to 3 ft.

$$

ANZ541-020800-
Choptank River to Cambridge MD and the Little Choptank River-
227 PM EDT Thu Oct 1 2026

.THIS AFTERNOON...S winds 10 kt. Waves 1 ft.
.TONIGHT...S winds 5 to 10 kt. Waves 1 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 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.
.MON...NW winds 5 to 10 kt...becoming N 15 to 20 kt. Waves 1 to
2 ft.

$$

ANZ542-020800-
Patuxent River to Broomes Island MD-
227 PM EDT Thu Oct 1 2026

.THIS AFTERNOON...SW winds 5 kt. Waves less than 1 ft.
.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...N winds around 5 kt. Waves 1 ft. Showers.
.MON...NW winds 10 to 15 kt. Waves 1 ft.

$$

ANZ534-020800-
Chesapeake Bay from Drum Point to Smith Point-
227 PM EDT Thu Oct 1 2026

.THIS AFTERNOON...S winds 10 kt. Waves 1 to 2 ft.
.TONIGHT...S winds 10 to 15 kt with gusts to 20 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 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. A chance of
tstms through the night, then a chance of showers after midnight.
.MON...N winds 20 to 25 kt. Waves 2 to 3 ft...building to 4 ft after
midnight.

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

$$

ANZ543-020800-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
227 PM EDT Thu Oct 1 2026

.THIS AFTERNOON...S winds 10 kt. Waves 1 ft.
.TONIGHT...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 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. A chance of tstms
through the night, then a chance of showers after midnight.
.MON...N winds 15 to 20 kt. Waves 1 to 2 ft.

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

$$