192
FZUS51 KLWX 121437
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1037 AM EDT Wed Mar 12 2025

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.

ANZ500-122000-
1037 AM EDT Wed Mar 12 2025

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

A front will waver near the Mid Atlantic through Friday before
finally lifting back north as a warm front on Saturday. A much
stronger cold front will push through Sunday. Small Craft Advisories
 may be needed Saturday. Advisories are likely Sunday with gale
conditions possible.  Boaters should be aware of the threats of
boating in cold water,  even when air temperatures are spring-like.
Visit weather.gov/safety/coldwater for more info.

$$

ANZ535-122000-
Tidal Potomac from Key Bridge to Indian Head-
1037 AM EDT Wed Mar 12 2025

.REST OF TODAY...E winds 5 kt. Waves less than 1 ft.
.TONIGHT...E winds 5 kt. Waves less than 1 ft.
.THU...NE winds 5 kt. Waves less than 1 ft.
.THU NIGHT...E winds around 5 kt. Waves 1 ft.
.FRI...E winds around 5 kt. Waves 1 ft.
.FRI NIGHT...SE winds 5 kt. Waves less than 1 ft.
.SAT...S winds 10 to 15 kt. Waves 1 ft. A chance of showers.
.SUN...S winds 10 to 15 kt...becoming W 5 to 10 kt after midnight.
Waves 1 to 2 ft. Showers.

$$

ANZ536-122000-
Tidal Potomac from Indian Head to Cobb Island-
1037 AM EDT Wed Mar 12 2025

.REST OF TODAY...NE winds 5 kt...becoming SE late. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...NE winds 5 kt. Waves less than 1 ft. Patchy fog. Vsby 1 to
3 NM.
.THU NIGHT...NE winds 5 kt. Waves less than 1 ft.
.FRI...E winds 5 kt. Waves less than 1 ft.
.FRI NIGHT...SE winds 5 kt. Waves less than 1 ft.
.SAT...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers.
.SUN...S winds 15 to 20 kt...becoming W 10 kt after midnight. Waves
1 to 2 ft. Showers.

$$

ANZ537-122000-
Tidal Potomac from Cobb Island to Smith Point-
1037 AM EDT Wed Mar 12 2025

.REST OF TODAY...NE winds 5 to 10 kt...becoming E late. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...NE winds 5 kt. Waves less than 1 ft. Patchy fog. Vsby 1 to
3 NM.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 kt. Waves less than 1 ft.
.FRI NIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.SAT...S winds 15 to 20 kt. Waves 1 to 2 ft...building to 3 ft after
midnight. A chance of showers.
.SUN...S winds 15 to 20 kt...becoming SW 10 to 15 kt after midnight.
Waves 2 to 3 ft. A chance of showers in the morning, then showers.

$$

ANZ530-122000-
Chesapeake Bay north of Pooles Island-
1037 AM EDT Wed Mar 12 2025

.REST OF TODAY...NE winds 5 to 10 kt...becoming SE late. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...NE winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 kt. Waves less than 1 ft.
.FRI NIGHT...SE winds 5 kt. Waves less than 1 ft.
.SAT...S winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers.
.SUN...S winds 15 to 20 kt...becoming W 10 to 15 kt after midnight.
Waves 1 to 2 ft. Showers.

$$

ANZ531-122000-
Chesapeake Bay from Pooles Island to Sandy Point-
1037 AM EDT Wed Mar 12 2025

.REST OF TODAY...NE winds 5 to 10 kt...becoming SE late. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...NE winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 kt. Waves less than 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...S winds 15 to 20 kt. Waves 1 to 2 ft...building to 3 ft after
midnight. A chance of showers.
.SUN...S winds 15 to 20 kt...becoming W 10 to 15 kt after midnight.
Waves 2 to 3 ft. Showers.

$$

ANZ538-122000-
Patapsco River including Baltimore Harbor-
1037 AM EDT Wed Mar 12 2025

.REST OF TODAY...NE winds 5 kt...becoming SE late. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...NE winds 5 kt. Waves less than 1 ft.
.THU NIGHT...E winds 5 kt. Waves less than 1 ft.
.FRI...E winds 5 kt. Waves flat.
.FRI NIGHT...SE winds 5 kt. Waves less than 1 ft.
.SAT...SE winds 10 to 15 kt. Waves 1 ft. A chance of showers.
.SUN...S winds 15 to 20 kt...becoming W 5 to 10 kt after midnight.
Waves 1 to 2 ft. Showers.

$$

ANZ539-122000-
Chester River to Queenstown MD-
1037 AM EDT Wed Mar 12 2025

.REST OF TODAY...NE winds 5 to 10 kt...becoming SE late. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...NE winds 5 kt. Waves less than 1 ft. Patchy fog. Vsby 1 to
3 NM.
.THU NIGHT...NE winds 5 kt. Waves less than 1 ft.
.FRI...E winds 5 kt. Waves less than 1 ft.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.SAT...S winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers.
.SUN...S winds 15 to 20 kt...becoming W 10 to 15 kt after midnight.
Waves 2 to 3 ft. Showers.

$$

ANZ532-122000-
Chesapeake Bay from Sandy Point to North Beach-
1037 AM EDT Wed Mar 12 2025

.REST OF TODAY...NE winds 10 kt...becoming E late. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...NE winds 5 to 10 kt. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.FRI...NE winds 5 kt. Waves less than 1 ft.
.FRI NIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.SAT...S winds 15 to 20 kt. Waves 1 to 2 ft...building to 3 ft. A
chance of showers.
.SUN...S winds 15 to 20 kt...becoming W 10 to 15 kt after midnight.
Waves 3 ft...subsiding to 2 ft after midnight. Showers.

$$

ANZ540-122000-
Eastern Bay-
1037 AM EDT Wed Mar 12 2025

.REST OF TODAY...NE winds 10 kt...becoming E late. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...NE winds 5 kt. Waves less than 1 ft. Patchy fog. Vsby 1 to
3 NM.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 kt. Waves less than 1 ft.
.FRI NIGHT...E winds 5 kt. Waves less than 1 ft.
.SAT...S winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers.
.SUN...S winds 15 to 20 kt...becoming W 10 to 15 kt after midnight.
Waves 2 to 3 ft. Showers.

$$

ANZ533-122000-
Chesapeake Bay from North Beach to Drum Point-
1037 AM EDT Wed Mar 12 2025

.REST OF TODAY...NE winds 10 kt...becoming E late. Waves 1 to 2 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...N winds 5 to 10 kt. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.FRI...NE winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.SAT...S winds 15 to 20 kt. Waves 1 to 2 ft...building to 3 ft. A
chance of showers.
.SUN...S winds 15 to 20 kt...becoming W 10 to 15 kt after midnight.
Waves 3 ft...subsiding to 2 ft after midnight. Showers.

$$

ANZ541-122000-
Choptank River to Cambridge MD and the Little Choptank River-
1037 AM EDT Wed Mar 12 2025

.REST OF TODAY...NE winds 10 kt...becoming E late. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...NE winds 5 to 10 kt. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.FRI...NE winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.SAT...S winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers.
.SUN...S winds 15 to 20 kt...becoming SW 10 to 15 kt after midnight.
Waves 2 to 3 ft. Showers.

$$

ANZ542-122000-
Patuxent River to Broomes Island MD-
1037 AM EDT Wed Mar 12 2025

.REST OF TODAY...NE winds 5 to 10 kt...becoming E late. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...NE winds 5 kt. Waves less than 1 ft. Patchy fog. Vsby 1 to
3 NM.
.THU NIGHT...NE winds 5 kt. Waves less than 1 ft.
.FRI...E winds 5 kt. Waves less than 1 ft.
.FRI NIGHT...SE winds 5 kt. Waves less than 1 ft.
.SAT...S winds 10 to 15 kt. Waves 1 ft. A chance of showers.
.SUN...S winds 15 to 20 kt...becoming SW 5 to 10 kt after midnight.
Waves 1 ft. Showers.

$$

ANZ534-122000-
Chesapeake Bay from Drum Point to Smith Point-
1037 AM EDT Wed Mar 12 2025

.REST OF TODAY...NE winds 5 to 10 kt...becoming E late. Gusts up to
20 kt. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...N winds 5 to 10 kt. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.FRI...NE winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.SAT...S winds 15 to 20 kt. Waves 2 to 3 ft...building to 4 ft. A
chance of showers.
.SUN...S winds 20 to 25 kt...becoming SW 15 to 20 kt after midnight.
Waves 4 ft...subsiding to 3 ft after midnight. A chance of showers
in the morning, then showers.

$$

ANZ543-122000-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1037 AM EDT Wed Mar 12 2025

.REST OF TODAY...NE winds 10 kt with gusts to 20 kt. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft. Patchy fog. Vsby 1 to
3 NM.
.THU...NE winds 5 to 10 kt. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.
.THU NIGHT...NE winds 5 to 10 kt. Waves 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.SAT...S winds 15 to 20 kt. Waves 1 to 2 ft...building to 3 ft after
midnight. A chance of showers after midnight.
.SUN...S winds 20 to 25 kt...becoming SW 15 to 20 kt after midnight.
Waves 2 to 3 ft. A chance of showers in the morning, then showers.

$$