870
FZUS51 KLWX 171435
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1035 AM EDT Tue Sep 17 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.

ANZ500-172000-
1035 AM EDT Tue Sep 17 2024

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

Low pressure over the Carolinas will gradually weaken through
Wednesday. Another low may develop off the coast during the second
half of the week. Small Craft Advisories will likely be needed for
portions of the waters through Wednesday. Additional advisories may
be needed Friday night into Saturday.

$$

ANZ535-172000-
Tidal Potomac from Key Bridge to Indian Head-
1035 AM EDT Tue Sep 17 2024

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

.REST OF TODAY...E winds 10 kt with gusts to 20 kt. Waves 1 ft. A
slight chance of showers late this morning, then a chance of showers
this afternoon.
.TONIGHT...NE winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Showers likely. Patchy fog. Vsby 1 NM or less.
.WED...NE winds 5 to 10 kt. Waves 1 ft. Showers likely. Patchy fog.
Vsby 1 NM or less.
.WED NIGHT...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 around 5 kt. Waves 1 ft.
.FRI...NE winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 5 to 10 kt. Waves 1 ft.

$$

ANZ536-172000-
Tidal Potomac from Indian Head to Cobb Island-
1035 AM EDT Tue Sep 17 2024

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

.REST OF TODAY...E winds 10 to 15 kt with gusts to 20 kt. Waves
1 ft. A chance of showers late this morning, then a chance of
showers with a slight chance of tstms this afternoon with vsby 1 to
3 NM.
.TONIGHT...NE winds 10 to 15 kt. Gusts up to 25 kt until early
morning. Waves 1 to 2 ft. Showers likely. Patchy fog. Vsby 1 NM or
less.
.WED...NE winds 5 to 10 kt. Waves 1 ft. Showers likely. Patchy fog.
Vsby 1 to 3 NM.
.WED NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.THU...N winds 5 kt. Waves less than 1 ft.
.THU NIGHT...N winds 5 kt. Waves less than 1 ft.
.FRI...NE winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 5 to 10 kt. Waves 1 ft.

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

$$

ANZ537-172000-
Tidal Potomac from Cobb Island to Smith Point-
1035 AM EDT Tue Sep 17 2024

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

.REST OF TODAY...E winds 15 to 20 kt with gusts to 25 kt. Waves
3 ft. A chance of showers late this morning, then a chance of
showers with a slight chance of tstms this afternoon. Patchy fog
this afternoon.
.TONIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
Showers likely. Patchy fog. Vsby 1 NM or less.
.WED...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft. A
chance of showers. Patchy fog. Vsby 1 to 3 NM.
.WED NIGHT...N winds 5 to 10 kt. Waves 1 to 2 ft.
.THU...N winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.FRI...NE winds 10 to 15 kt. Waves 1 to 2 ft.
.SAT...NE winds 10 to 15 kt. Waves 2 to 3 ft.

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

$$

ANZ530-172000-
Chesapeake Bay north of Pooles Island-
1035 AM EDT Tue Sep 17 2024

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

.REST OF TODAY...E winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft.
.TONIGHT...E winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A
chance of showers.
.WED...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A
chance of showers. Patchy fog. Vsby 1 to 3 NM.
.WED NIGHT...N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.THU...N winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.FRI...NE winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 10 to 15 kt. Waves 1 ft.

$$

ANZ531-172000-
Chesapeake Bay from Pooles Island to Sandy Point-
1035 AM EDT Tue Sep 17 2024

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

.REST OF TODAY...E winds 10 to 15 kt with gusts to 20 kt. Waves
2 ft.
.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Showers likely.
.WED...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Showers
likely. Patchy fog. Vsby 1 to 3 NM.
.WED NIGHT...N winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft. A
chance of showers.
.THU...N winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.FRI...NE winds 10 kt. Waves 1 to 2 ft.
.SAT...NE winds 10 to 15 kt. Waves 2 ft.

$$

ANZ538-172000-
Patapsco River including Baltimore Harbor-
1035 AM EDT Tue Sep 17 2024

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

.REST OF TODAY...E winds 10 to 15 kt with gusts to 20 kt. Waves
1 ft. A slight chance of showers this afternoon.
.TONIGHT...NE winds 10 kt with gusts to 20 kt. Waves 1 ft. Showers
likely.
.WED...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. Showers
likely. Patchy fog. Vsby 1 to 3 NM.
.WED NIGHT...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...NE winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 5 to 10 kt. Waves 1 ft.

$$

ANZ539-172000-
Chester River to Queenstown MD-
1035 AM EDT Tue Sep 17 2024

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

.REST OF TODAY...E winds 10 to 15 kt with gusts to 20 kt. Waves
1 ft. A slight chance of showers this afternoon.
.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Showers likely.
.WED...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. Showers
likely. Patchy fog. Vsby 1 to 3 NM.
.WED NIGHT...NE 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 to 10 kt. Waves 1 ft.
.FRI...NE winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 10 to 15 kt. Waves 1 ft.

$$

ANZ532-172000-
Chesapeake Bay from Sandy Point to North Beach-
1035 AM EDT Tue Sep 17 2024

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

.REST OF TODAY...E winds 15 kt with gusts to 25 kt. Waves 2 to 3 ft.
A slight chance of showers this afternoon.
.TONIGHT...NE winds 15 kt with gusts to 25 kt. Waves 2 to 3 ft.
Showers likely. Vsby 1 to 3 NM.
.WED...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Showers
likely. Patchy fog. Vsby 1 NM or less.
.WED NIGHT...N winds 10 kt. Gusts up to 20 kt in the evening. Waves
1 to 2 ft. A chance of 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...NE winds 10 to 15 kt. Waves 1 to 2 ft.
.SAT...NE winds 10 to 15 kt. Waves 2 ft.

$$

ANZ540-172000-
Eastern Bay-
1035 AM EDT Tue Sep 17 2024

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

.REST OF TODAY...E winds 15 kt with gusts to 20 kt. Waves 2 ft. A
slight chance of showers this afternoon.
.TONIGHT...NE winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
Showers likely.
.WED...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Showers likely. Patchy fog. Vsby 1 to 3 NM.
.WED NIGHT...N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.THU...N winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.FRI...NE winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 10 to 15 kt. Waves 1 ft.

$$

ANZ533-172000-
Chesapeake Bay from North Beach to Drum Point-
1035 AM EDT Tue Sep 17 2024

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

.REST OF TODAY...E winds 15 kt with gusts to 25 kt. Waves 3 ft. A
slight chance of showers. Vsby 1 to 3 NM this afternoon.
.TONIGHT...NE winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
Showers likely. Patchy fog. Vsby 1 to 3 NM.
.WED...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft.
Showers likely. Patchy fog. Vsby 1 NM or less.
.WED NIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Waves 1 to 2 ft.
.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...becoming NE. Waves 2 ft.
.SAT...NE winds 10 to 15 kt. Waves 2 ft.

$$

ANZ541-172000-
Choptank River to Cambridge MD and the Little Choptank River-
1035 AM EDT Tue Sep 17 2024

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

.REST OF TODAY...E winds 15 kt with gusts to 25 kt. Waves 2 ft. A
slight chance of showers.
.TONIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
Showers likely. Patchy fog. Vsby 1 to 3 NM.
.WED...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Showers
likely. Patchy fog. Vsby 1 NM or less.
.WED NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt in the evening.
Waves 1 ft.
.THU...N winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.FRI...NE winds 10 to 15 kt. Waves 1 to 2 ft.
.SAT...NE winds 10 to 15 kt. Waves 2 ft.

$$

ANZ542-172000-
Patuxent River to Broomes Island MD-
1035 AM EDT Tue Sep 17 2024

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

.REST OF TODAY...E winds 10 to 15 kt with gusts to 25 kt. Waves
1 ft. A chance of showers.
.TONIGHT...NE winds 10 to 15 kt with gusts to 25 kt. Waves 1 ft.
Showers likely. Patchy fog. Vsby 1 to 3 NM.
.WED...NE winds 10 kt with gusts to 20 kt. Waves 1 ft. Showers
likely. Patchy fog. Vsby 1 NM or less.
.WED NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.THU...N winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.FRI...NE winds 5 to 10 kt. Waves 1 ft.
.SAT...NE winds 10 to 15 kt. Waves 1 ft.

$$

ANZ534-172000-
Chesapeake Bay from Drum Point to Smith Point-
1035 AM EDT Tue Sep 17 2024

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

.REST OF TODAY...E winds 15 to 20 kt with gusts to 25 kt. Waves
3 ft. A chance of showers late this morning, then a chance of
showers with a slight chance of tstms this afternoon with vsby 1 to
3 NM.
.TONIGHT...NE winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft.
Showers likely. Patchy fog. Vsby 1 NM or less.
.WED...NE winds 10 to 15 kt with gusts to 20 kt. Waves 2 to 3 ft.
Showers likely. Patchy fog. Vsby 1 to 3 NM.
.WED NIGHT...N winds 10 kt. Waves 1 to 2 ft.
.THU...N winds 10 kt. Waves 1 ft.
.THU NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.FRI...NE winds 10 to 15 kt. Waves 2 ft.
.SAT...NE winds 10 to 15 kt. Waves 3 ft.

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

$$

ANZ543-172000-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1035 AM EDT Tue Sep 17 2024

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

.REST OF TODAY...E winds 15 kt with gusts to 25 kt. Waves 2 ft. A
slight chance of showers late this morning, then a chance of showers
with a slight chance of tstms this afternoon. Patchy fog this
afternoon with vsby 1 to 3 NM.
.TONIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
Showers likely. Patchy fog. Vsby 1 NM or less.
.WED...NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Showers likely. Patchy fog. Vsby 1 NM or less.
.WED NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.THU...N winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...N winds 5 to 10 kt. Waves 1 ft.
.FRI...NE winds 10 to 15 kt. Waves 1 to 2 ft.
.SAT...NE winds 10 to 15 kt. Waves 2 ft. A chance of showers through
the night.

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

$$