166
FZUS51 KLWX 180835
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
435 AM EDT Wed Sep 18 2024

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.

ANZ500-182300-
435 AM EDT Wed Sep 18 2024

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

Low pressure over the southern Appalachians will weaken today.
Meanwhile, another low will develop off the coast by tonight and
only slowly drift eastward through the weekend. A backdoor cold
front may push into the area Saturday. Small Craft Advisories may be
 needed for portions of the waters Thursday and again Friday night
through Sunday.

$$

ANZ535-182300-
Tidal Potomac from Key Bridge to Indian Head-
435 AM EDT Wed Sep 18 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY...

.REST OF THE OVERNIGHT...NE winds 10 kt with gusts to 20 kt. Waves
1 ft. Showers with isolated tstms. Vsby 1 NM or less.
.TODAY...NE winds 10 kt with gusts to 20 kt. Waves 1 ft. Showers.
Vsby 1 NM or less.
.TONIGHT...N winds 5 to 10 kt. Waves 1 ft. Scattered showers.
.THU...N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.THU NIGHT...N winds 5 kt. Waves less than 1 ft.
.FRI...N winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft.

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

$$

ANZ536-182300-
Tidal Potomac from Indian Head to Cobb Island-
435 AM EDT Wed Sep 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.REST OF THE OVERNIGHT...NE winds 15 kt with gusts to 20 kt. Waves
1 ft. Showers with isolated tstms. Vsby 1 NM or less.
.TODAY...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Numerous showers. Patchy fog. Vsby 1 NM or less.
.TONIGHT...N winds 5 to 10 kt. Waves 1 ft. Scattered showers.
.THU...N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.THU NIGHT...N winds 5 kt. Waves less than 1 ft.
.FRI...N winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft.

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

$$

ANZ537-182300-
Tidal Potomac from Cobb Island to Smith Point-
435 AM EDT Wed Sep 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.REST OF THE OVERNIGHT...E winds 15 kt with gusts to 25 kt. Waves
3 ft. Showers with isolated tstms. Vsby 1 NM or less.
.TODAY...NE winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
Numerous showers. Vsby 1 NM or less.
.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Scattered showers.
.THU...N winds 5 to 10 kt. Waves 1 to 2 ft. Scattered showers.
.THU NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.FRI...N winds 5 to 10 kt. Waves 1 to 2 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Waves 2 ft.
.SAT...NE winds 10 to 15 kt. Waves 2 ft.
.SUN...NE winds 10 to 15 kt. Waves 2 to 3 ft.

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

$$

ANZ530-182300-
Chesapeake Bay north of Pooles Island-
435 AM EDT Wed Sep 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.REST OF THE OVERNIGHT...NE winds 15 kt with gusts to 20 kt. Waves
2 ft. Showers with isolated tstms.
.TODAY...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Showers.
.TONIGHT...NE winds 5 to 10 kt with gusts to 20 kt. Waves 1 to 2 ft.
Scattered showers.
.THU...N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.THU NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.FRI...N winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 10 to 15 kt. Waves 1 ft.
.SUN...NE winds 10 to 15 kt. Waves 1 ft.

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

$$

ANZ531-182300-
Chesapeake Bay from Pooles Island to Sandy Point-
435 AM EDT Wed Sep 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.REST OF THE OVERNIGHT...NE winds 15 kt with gusts to 20 kt. Waves
2 ft. Showers with isolated tstms.
.TODAY...NE winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
Showers.
.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Scattered showers.
.THU...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance
of showers.
.THU NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.FRI...N winds 10 kt. Waves 1 to 2 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Waves 2 ft.
.SAT...NE winds 10 to 15 kt. Waves 2 ft.
.SUN...NE winds 10 to 15 kt. Waves 2 ft.

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

$$

ANZ538-182300-
Patapsco River including Baltimore Harbor-
435 AM EDT Wed Sep 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.REST OF THE OVERNIGHT...NE winds 15 kt with gusts to 20 kt. Waves
1 ft. Showers with isolated tstms.
.TODAY...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Showers.
.TONIGHT...N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Scattered showers.
.THU...N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.THU NIGHT...N winds 5 kt. Waves less than 1 ft.
.FRI...N winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 5 to 10 kt. Waves 1 ft.
.SUN...NE winds 5 to 10 kt. Waves 1 ft.

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

$$

ANZ539-182300-
Chester River to Queenstown MD-
435 AM EDT Wed Sep 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.REST OF THE OVERNIGHT...NE winds 15 kt with gusts to 20 kt. Waves
2 ft. Showers with isolated tstms.
.TODAY...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Showers.
.TONIGHT...NE winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft.
Scattered showers.
.THU...N winds 10 kt. Waves 1 ft. A chance of showers.
.THU NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.FRI...N winds 10 kt. Waves 1 ft.
.FRI NIGHT...NE winds 10 kt. Waves 1 ft.
.SAT...NE winds 10 to 15 kt. Waves 1 ft.
.SUN...NE winds 10 to 15 kt. Waves 1 ft.

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

$$

ANZ532-182300-
Chesapeake Bay from Sandy Point to North Beach-
435 AM EDT Wed Sep 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.REST OF THE OVERNIGHT...NE winds 15 kt with gusts to 25 kt. Waves
2 ft. Showers with isolated tstms. Vsby 1 NM or less.
.TODAY...NE winds 15 kt with gusts to 25 kt. Waves 2 to 3 ft.
Showers. Vsby 1 NM or less.
.TONIGHT...NE winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
Scattered showers.
.THU...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance
of showers.
.THU NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.FRI...N winds 10 kt. Waves 2 ft.
.FRI NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SAT...NE winds 10 to 15 kt. Waves 2 ft.
.SUN...NE winds 10 to 15 kt. Waves 2 ft.

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

$$

ANZ540-182300-
Eastern Bay-
435 AM EDT Wed Sep 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.REST OF THE OVERNIGHT...NE winds 15 kt with gusts to 20 kt. Waves
2 ft. Showers with isolated tstms. Vsby 1 NM or less.
.TODAY...NE winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
Showers. Vsby 1 NM or less.
.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft. Scattered showers.
.THU...N winds 10 kt. Waves 1 ft. A chance of showers.
.THU NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.FRI...N winds 10 kt. Waves 1 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Waves 1 ft.
.SAT...NE winds 10 to 15 kt. Waves 1 ft.
.SUN...NE winds 10 to 15 kt. Waves 1 ft.

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

$$

ANZ533-182300-
Chesapeake Bay from North Beach to Drum Point-
435 AM EDT Wed Sep 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.REST OF THE OVERNIGHT...E winds 15 kt with gusts to 25 kt. Waves
3 ft. Showers with isolated tstms. Vsby 1 NM or less.
.TODAY...NE winds 10 to 15 kt with gusts to 25 kt. Waves 3 ft.
Numerous showers. Vsby 1 NM or less.
.TONIGHT...NE winds 10 to 15 kt with gusts to 25 kt. Waves 2 to
3 ft. Scattered showers.
.THU...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance
of showers.
.THU NIGHT...N winds 5 to 10 kt. Waves 1 to 2 ft.
.FRI...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.FRI NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SAT...NE winds 10 to 15 kt. Waves 2 ft.
.SUN...NE winds 15 to 20 kt. Waves 2 to 3 ft.

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

$$

ANZ541-182300-
Choptank River to Cambridge MD and the Little Choptank River-
435 AM EDT Wed Sep 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.REST OF THE OVERNIGHT...E winds 15 kt with gusts to 25 kt. Waves
2 ft. Showers with isolated tstms. Vsby 1 NM or less.
.TODAY...NE winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
Showers. Vsby 1 NM or less.
.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft. Scattered showers.
.THU...N winds 10 kt with gusts to 20 kt. Waves 1 ft. A chance of
showers.
.THU NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.FRI...N winds 10 kt. Waves 1 ft.
.FRI NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SAT...NE winds 10 to 15 kt. Waves 2 ft.
.SUN...NE winds 10 to 15 kt. Waves 2 ft.

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

$$

ANZ542-182300-
Patuxent River to Broomes Island MD-
435 AM EDT Wed Sep 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.REST OF THE OVERNIGHT...E winds 15 kt with gusts to 20 kt. Waves
1 ft. Showers with isolated tstms.
.TODAY...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Showers.
.TONIGHT...NE winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Scattered showers.
.THU...N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.THU NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.FRI...N winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 10 to 15 kt. Waves 1 ft.
.SUN...NE winds 10 to 15 kt. Waves 1 ft.

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

$$

ANZ534-182300-
Chesapeake Bay from Drum Point to Smith Point-
435 AM EDT Wed Sep 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.REST OF THE OVERNIGHT...E winds 20 kt with gusts to 25 kt. Waves
3 ft. Showers with isolated tstms. Vsby 1 NM or less.
.TODAY...NE winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
Scattered showers. Vsby 1 NM or less.
.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 to
3 ft. Scattered showers.
.THU...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance
of showers.
.THU NIGHT...N winds 10 kt. Waves 2 ft.
.FRI...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.FRI NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SAT...NE winds 10 to 15 kt. Waves 2 to 3 ft.
.SUN...NE winds 15 to 20 kt. Waves 3 ft.

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

$$

ANZ543-182300-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
435 AM EDT Wed Sep 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.REST OF THE OVERNIGHT...E winds 15 kt with gusts to 25 kt. Waves
2 ft. Showers with isolated tstms. Patchy fog. Vsby 1 NM or less.
.TODAY...NE winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
Showers. Vsby 1 NM or less.
.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft. Scattered showers.
.THU...N winds 10 kt with gusts to 20 kt. Waves 1 ft. A chance of
showers.
.THU NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.FRI...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.FRI NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft.
.SAT...NE winds 10 to 15 kt. Waves 2 ft.
.SUN...NE winds 15 to 20 kt. Waves 2 ft.

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

$$