426
FZUS51 KLWX 111435
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1035 AM EDT Tue Mar 11 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.

ANZ500-112000-
1035 AM EDT Tue Mar 11 2025

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

High pressure will remain over the region today. A backdoor cold
front will move into the area Wednesday and waver near the Mid
Atlantic before finally lifting back north as a warm front on
Saturday. A much stronger frontal system and area of low pressure
will push through Sunday. Small Craft Advisories may be needed
Saturday.  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.

$$

ANZ535-112000-
Tidal Potomac from Key Bridge to Indian Head-
1035 AM EDT Tue Mar 11 2025

.REST OF TODAY...S winds 5 kt. Waves less than 1 ft.
.TONIGHT...SW winds 5 kt. Waves less than 1 ft.
.WED...NE winds 5 kt...becoming SE late. Waves 1 ft.
.WED NIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.THU...E winds around 5 kt. Waves 1 ft.
.THU NIGHT...E winds around 5 kt. Waves 1 ft.
.FRI...E winds around 5 kt. Waves 1 ft.
.SAT...S winds 5 to 10 kt. Waves 1 ft. A chance of showers.

$$

ANZ536-112000-
Tidal Potomac from Indian Head to Cobb Island-
1035 AM EDT Tue Mar 11 2025

.REST OF TODAY...SE winds 5 kt. Waves less than 1 ft.
.TONIGHT...SW winds 5 to 10 kt...becoming NW late. Waves 1 ft.
.WED...NE winds 5 kt...becoming SE late. Waves 1 ft.
.WED NIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.THU...E winds around 5 kt. Waves 1 ft.
.THU NIGHT...E winds 5 kt. Waves less than 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.SAT...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers.

$$

ANZ537-112000-
Tidal Potomac from Cobb Island to Smith Point-
1035 AM EDT Tue Mar 11 2025

.REST OF TODAY...W winds 5 kt. Waves flat.
.TONIGHT...SW winds 5 kt. Waves less than 1 ft.
.WED...NE winds 5 kt...becoming SE late. Waves 1 ft.
.WED NIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.THU...E winds around 5 kt. Waves 1 ft or less.
.THU NIGHT...E winds 5 kt. Waves less than 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.SAT...S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers.

$$

ANZ530-112000-
Chesapeake Bay north of Pooles Island-
1035 AM EDT Tue Mar 11 2025

.REST OF TODAY...S winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...SW winds 5 to 10 kt...becoming N late. Waves 1 ft.
.WED...NE winds 5 to 10 kt...becoming SE late. Waves 1 ft.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...E winds around 5 kt. Waves flat.
.THU NIGHT...E winds 5 kt. Waves flat.
.FRI...E winds 5 to 10 kt. Waves 1 ft or less.
.SAT...SE winds 10 to 15 kt...becoming S. Waves 1 to 2 ft. A chance
of showers.

$$

ANZ531-112000-
Chesapeake Bay from Pooles Island to Sandy Point-
1035 AM EDT Tue Mar 11 2025

.REST OF TODAY...S winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...SW winds 5 to 10 kt...becoming NW late. Waves 1 ft.
.WED...NE winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...E winds 5 kt. Waves flat.
.THU NIGHT...E winds 5 kt. Waves less than 1 ft.
.FRI...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.

$$

ANZ538-112000-
Patapsco River including Baltimore Harbor-
1035 AM EDT Tue Mar 11 2025

.REST OF TODAY...S winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...SW winds 5 kt. Waves less than 1 ft.
.WED...NE winds 5 kt. Waves less than 1 ft.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...E winds 5 kt. Waves flat.
.THU NIGHT...E winds 5 kt. Waves flat.
.FRI...E winds 5 kt. Waves less than 1 ft.
.SAT...SE winds 10 to 15 kt. Waves 1 ft. A chance of showers.

$$

ANZ539-112000-
Chester River to Queenstown MD-
1035 AM EDT Tue Mar 11 2025

.REST OF TODAY...S winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...SW winds 5 to 10 kt...becoming NW late. Waves 1 ft.
.WED...NE winds 5 to 10 kt...becoming E late. Waves 1 ft.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...NE winds 5 kt. Waves flat.
.THU NIGHT...E winds 5 kt. Waves flat.
.FRI...E winds 5 to 10 kt. Waves 1 ft or less.
.SAT...S winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers.

$$

ANZ532-112000-
Chesapeake Bay from Sandy Point to North Beach-
1035 AM EDT Tue Mar 11 2025

.REST OF TODAY...S winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...SW winds 5 to 10 kt...becoming NW late. Waves 1 ft.
.WED...NE winds 5 to 10 kt...becoming E late. Waves 1 ft.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...NE winds 5 kt. Waves less than 1 ft.
.THU NIGHT...NE winds 5 kt. Waves less than 1 ft.
.FRI...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. A
chance of showers.

$$

ANZ540-112000-
Eastern Bay-
1035 AM EDT Tue Mar 11 2025

.REST OF TODAY...S winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...SW winds 5 to 10 kt...becoming NW late. Waves 1 ft.
.WED...NE winds 5 to 10 kt...becoming E late. Waves 1 ft.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...NE winds 5 kt. Waves flat.
.THU NIGHT...E winds 5 kt. Waves less than 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft or less.
.SAT...S winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers.

$$

ANZ533-112000-
Chesapeake Bay from North Beach to Drum Point-
1035 AM EDT Tue Mar 11 2025

.REST OF TODAY...SE winds 5 kt...becoming S late. Waves 1 ft or
less.
.TONIGHT...SW winds 5 to 10 kt...becoming NW late. Waves 1 ft.
.WED...NE winds 5 to 10 kt...becoming E late. Waves 1 ft.
.WED NIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.THU...NE winds 5 kt. Waves less than 1 ft.
.THU NIGHT...NE winds 5 kt. Waves less than 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.SAT...SE winds 5 to 10 kt...becoming S 15 to 20 kt. Waves 1 ft...
building to 3 ft. A chance of showers.

$$

ANZ541-112000-
Choptank River to Cambridge MD and the Little Choptank River-
1035 AM EDT Tue Mar 11 2025

.REST OF TODAY...SE winds 5 kt...becoming SW late. Waves 1 ft or
less.
.TONIGHT...S winds 5 to 10 kt...becoming NW late. Waves 1 ft.
.WED...NE winds 5 to 10 kt...becoming E late. Waves 1 ft.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 ft.
.THU...NE winds 5 kt. Waves flat.
.THU NIGHT...NE winds 5 kt. Waves less than 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft or less.
.SAT...SE winds 5 to 10 kt...becoming S 15 to 20 kt. Waves 1 to
2 ft. A chance of showers.

$$

ANZ542-112000-
Patuxent River to Broomes Island MD-
1035 AM EDT Tue Mar 11 2025

.REST OF TODAY...SE winds 5 kt. Waves less than 1 ft.
.TONIGHT...SW winds 5 kt. Waves less than 1 ft.
.WED...NE winds 5 to 10 kt...becoming E late. Waves 1 ft.
.WED NIGHT...SE winds 5 kt. Waves less than 1 ft.
.THU...NE winds around 5 kt. Waves 1 ft.
.THU NIGHT...NE winds 5 kt. Waves less than 1 ft.
.FRI...E winds 5 kt. Waves less than 1 ft.
.SAT...S winds 10 to 15 kt. Waves 1 ft. A chance of showers.

$$

ANZ534-112000-
Chesapeake Bay from Drum Point to Smith Point-
1035 AM EDT Tue Mar 11 2025

.REST OF TODAY...NW winds 5 kt. Waves less than 1 ft.
.TONIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.WED...NE winds 5 to 10 kt...becoming E late. Waves 1 ft.
.WED NIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.THU...E winds 5 kt. Waves less than 1 ft.
.THU NIGHT...E winds 5 kt. Waves less than 1 ft.
.FRI...E winds 5 to 10 kt. Waves 1 ft.
.SAT...S winds 15 to 20 kt. Waves 2 to 3 ft...building to 4 ft after
midnight. A chance of showers after midnight.

$$

ANZ543-112000-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1035 AM EDT Tue Mar 11 2025

.REST OF TODAY...NW winds 5 kt. Waves less than 1 ft.
.TONIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.WED...N winds 5 to 10 kt...becoming E in the afternoon. Waves 1 ft.
.WED NIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.THU...E winds 5 kt. Waves less than 1 ft.
.THU NIGHT...E winds 5 kt. Waves less than 1 ft.
.FRI...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
after midnight.

$$