Coastal Waters Forecast
Issued by NWS Sterling, VA

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FZUS51 KLWX 181434
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1034 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.

ANZ500-182000-
1034 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
slowly drift eastward through Friday. A backdoor cold front may push
 though the area Saturday. Small Craft Advisories may be needed for
portions of the waters Thursday and again Friday night through
Sunday.

$$

ANZ535-182000-
Tidal Potomac from Key Bridge to Indian Head-
1034 AM EDT Wed Sep 18 2024

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

.REST OF TODAY...NE winds 10 kt with gusts to 20 kt. Waves 1 ft.
Patchy fog late this morning. A chance of tstms. Showers.
.TONIGHT...N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.THU...N winds 5 kt. Waves less than 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.

$$

ANZ536-182000-
Tidal Potomac from Indian Head to Cobb Island-
1034 AM EDT Wed Sep 18 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING...

.REST OF TODAY...NE winds 10 kt. Waves 1 ft. Patchy fog late this
morning. Showers likely with a chance of tstms.
.TONIGHT...N winds 5 to 10 kt. Waves 1 ft. A chance of 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.

$$

ANZ537-182000-
Tidal Potomac from Cobb Island to Smith Point-
1034 AM EDT Wed Sep 18 2024

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

.REST OF TODAY...NE winds 15 kt with gusts to 20 kt. Waves 3 ft.
Patchy fog late this morning. Showers likely. A chance of tstms late
this morning, then a slight chance of tstms this afternoon.
.TONIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A
chance of showers.
.THU...N winds 5 to 10 kt. Waves 1 to 2 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 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.

$$

ANZ530-182000-
Chesapeake Bay north of Pooles Island-
1034 AM EDT Wed Sep 18 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.REST OF TODAY...NE winds 10 to 15 kt with gusts to 20 kt. Waves
2 ft. Showers likely with a slight chance of tstms.
.TONIGHT...NE winds 5 to 10 kt with gusts to 20 kt. Waves 1 to 2 ft.
Showers likely.
.THU...N winds 5 to 10 kt. Waves 1 ft.
.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.

$$

ANZ531-182000-
Chesapeake Bay from Pooles Island to Sandy Point-
1034 AM EDT Wed Sep 18 2024

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

.REST OF TODAY...NE winds 15 kt with gusts to 20 kt. Waves 2 ft.
Showers likely with a slight chance of tstms.
.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Showers likely.
.THU...N winds 5 to 10 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.

$$

ANZ538-182000-
Patapsco River including Baltimore Harbor-
1034 AM EDT Wed Sep 18 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.REST OF TODAY...NE winds 10 kt with gusts to 20 kt. Waves 1 ft.
Showers likely with a slight chance of tstms.
.TONIGHT...N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. A
chance of 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.

$$

ANZ539-182000-
Chester River to Queenstown MD-
1034 AM EDT Wed Sep 18 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.REST OF TODAY...NE winds 10 to 15 kt with gusts to 20 kt. Waves
1 to 2 ft. Showers likely. A chance of tstms late this morning, then
a slight chance of tstms this afternoon.
.TONIGHT...NE winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft.
Showers likely.
.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.

$$

ANZ532-182000-
Chesapeake Bay from Sandy Point to North Beach-
1034 AM EDT Wed Sep 18 2024

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

.REST OF TODAY...NE winds 15 kt with gusts to 20 kt. Waves 2 ft.
Showers likely. A chance of tstms late this morning, then a slight
chance of tstms this afternoon.
.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Showers likely.
.THU...N winds 10 to 15 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.

$$

ANZ540-182000-
Eastern Bay-
1034 AM EDT Wed Sep 18 2024

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

.REST OF TODAY...NE winds 15 kt with gusts to 20 kt. Waves 2 ft.
Showers likely. A chance of tstms late this morning, then a slight
chance of tstms this afternoon.
.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft. Showers likely.
.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.

$$

ANZ533-182000-
Chesapeake Bay from North Beach to Drum Point-
1034 AM EDT Wed Sep 18 2024

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

.REST OF TODAY...NE winds 15 kt with gusts to 20 kt. Waves 3 ft.
Showers likely. A chance of tstms late this morning, then a slight
chance of tstms this afternoon.
.TONIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft.
A chance of showers.
.THU...N winds 10 to 15 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.

$$

ANZ541-182000-
Choptank River to Cambridge MD and the Little Choptank River-
1034 AM EDT Wed Sep 18 2024

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

.REST OF TODAY...NE winds 15 kt with gusts to 20 kt. Waves 2 ft.
Showers likely. A chance of tstms late this morning, then a slight
chance of tstms this afternoon.
.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft. Showers likely.
.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 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.

$$

ANZ542-182000-
Patuxent River to Broomes Island MD-
1034 AM EDT Wed Sep 18 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.REST OF TODAY...NE winds 10 kt with gusts to 20 kt. Waves 1 ft.
Showers likely. A chance of tstms late this morning, then a slight
chance of tstms this afternoon.
.TONIGHT...N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. A
chance of 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.

$$

ANZ534-182000-
Chesapeake Bay from Drum Point to Smith Point-
1034 AM EDT Wed Sep 18 2024

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

.REST OF TODAY...NE winds 15 kt with gusts to 20 kt. Waves 3 ft. A
chance of showers. A chance of tstms late this morning, then a
slight chance of tstms this afternoon.
.TONIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft.
A chance of showers.
.THU...N winds 10 to 15 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.

$$

ANZ543-182000-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1034 AM EDT Wed Sep 18 2024

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

.REST OF TODAY...NE winds 15 kt with gusts to 20 kt. Waves 2 ft. A
chance of showers. A chance of tstms late this morning, then a
slight chance of tstms this afternoon.
.TONIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
A chance of showers.
.THU...N winds 10 kt. Waves 1 ft.
.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.

$$