Coastal Waters Forecast
Issued by NWS Sterling, VA

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
115
FZUS51 KLWX 210233
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1033 PM EDT Mon May 20 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.

ANZ500-210800-
1033 PM EDT Mon May 20 2024

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

High pressure will build over the waters through Tuesday. A strong
cold front will approach the waters Wednesday into Thursday. This
frontal system will settle south of the area Friday before
retreating back toward the waters this weekend. Small Craft
Advisories may be needed for portions of the waters Wednesday.

$$

ANZ535-210800-
Tidal Potomac from Key Bridge to Indian Head-
1033 PM EDT Mon May 20 2024

.REST OF TONIGHT...S winds 5 kt. Waves less than 1 ft. Patchy fog
with vsby 1 to 3 NM.
.TUE...S winds 5 to 10 kt. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.
.TUE NIGHT...S winds around 5 kt. Waves 1 ft.
.WED...S winds 5 kt. Waves less than 1 ft.
.WED NIGHT...S winds 5 kt. Waves less than 1 ft.
.THU...SW winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.THU NIGHT...W winds around 5 kt. Waves 1 ft or less. A chance of
showers and tstms.
.FRI...SW winds around 5 kt. Waves 1 ft. A chance of showers and
tstms.
.SAT...E winds around 5 kt. Waves 1 ft. A chance of showers.

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

$$

ANZ536-210800-
Tidal Potomac from Indian Head to Cobb Island-
1033 PM EDT Mon May 20 2024

.REST OF TONIGHT...S winds 5 kt. Waves less than 1 ft. Patchy fog
with vsby 1 to 3 NM.
.TUE...S winds 5 to 10 kt. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.
.TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.WED...S winds 5 kt. Waves less than 1 ft.
.WED NIGHT...S winds 5 kt. Waves less than 1 ft.
.THU...SW winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.THU NIGHT...W winds around 5 kt. Waves 1 ft. A chance of showers
and tstms.
.FRI...E winds around 5 kt. Waves 1 ft. A chance of showers and
tstms.
.SAT...E winds around 5 kt. Waves 1 ft. A chance of showers.

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

$$

ANZ537-210800-
Tidal Potomac from Cobb Island to Smith Point-
1033 PM EDT Mon May 20 2024

.REST OF TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. Patchy fog with
vsby 1 NM or less.
.TUE...SE winds 5 to 10 kt. Waves 1 ft or less. Patchy fog. Vsby
1 NM or less.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.WED...S winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.THU NIGHT...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.FRI...SE winds 5 kt. Waves less than 1 ft. A chance of showers. A
chance of tstms through the night.
.SAT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.

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

$$

ANZ530-210800-
Chesapeake Bay north of Pooles Island-
1033 PM EDT Mon May 20 2024

.REST OF TONIGHT...S winds 5 kt. Waves less than 1 ft. Patchy fog
with vsby 1 to 3 NM.
.TUE...S winds 5 to 10 kt. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.WED...S winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.THU NIGHT...W winds 5 kt. Waves less than 1 ft. A chance of showers
and tstms.
.FRI...NW winds around 5 kt. Waves 1 ft. A chance of showers after
midnight.
.SAT...E winds 5 kt. Waves less than 1 ft. A chance of showers. A
chance of tstms through the night.

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

$$

ANZ531-210800-
Chesapeake Bay from Pooles Island to Sandy Point-
1033 PM EDT Mon May 20 2024

.REST OF TONIGHT...S winds 5 to 10 kt. Waves 1 ft. Patchy fog with
vsby 1 to 3 NM.
.TUE...S winds 5 to 10 kt. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.WED...S winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...S winds 10 to 15 kt. Waves 1 to 2 ft.
.THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.THU NIGHT...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.FRI...SW winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms through the night.
.SAT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers. A chance
of tstms through the night.

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

$$

ANZ538-210800-
Patapsco River including Baltimore Harbor-
1033 PM EDT Mon May 20 2024

.REST OF TONIGHT...S winds 5 kt. Waves flat. Patchy fog with vsby
1 to 3 NM.
.TUE...S winds 5 to 10 kt. Waves 1 ft or less. Patchy fog. Vsby 1 to
3 NM.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.WED...S winds 5 to 10 kt. Waves 1 ft or less.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...SW winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms.
.THU NIGHT...W winds 5 kt. Waves less than 1 ft. A chance of showers
and tstms.
.FRI...W winds around 5 kt. Waves flat. A chance of showers and
tstms through the night.
.SAT...E winds 5 kt. Waves less than 1 ft. A chance of showers. A
chance of tstms through the night.

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

$$

ANZ539-210800-
Chester River to Queenstown MD-
1033 PM EDT Mon May 20 2024

.REST OF TONIGHT...S winds 5 kt. Waves less than 1 ft. Patchy fog
with vsby 1 to 3 NM.
.TUE...S winds 5 to 10 kt. Waves 1 ft or less. Patchy fog. Vsby 1 to
3 NM.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.WED...S winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.THU NIGHT...W winds 5 kt. Waves less than 1 ft. A chance of showers
and tstms.
.FRI...SW winds 5 kt. Waves flat. A chance of showers and tstms
through the night.
.SAT...E winds 5 kt. Waves less than 1 ft. A chance of showers. A
chance of tstms through the night.

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

$$

ANZ532-210800-
Chesapeake Bay from Sandy Point to North Beach-
1033 PM EDT Mon May 20 2024

.REST OF TONIGHT...S winds 5 to 10 kt. Waves 1 ft. Patchy fog with
vsby 1 to 3 NM.
.TUE...S winds 5 to 10 kt. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 to 2 ft.
.WED...S winds 10 to 15 kt. Waves 1 to 2 ft.
.WED NIGHT...S winds 10 to 15 kt. Waves 2 ft.
.THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.THU NIGHT...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.FRI...S winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms through the night.
.SAT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.

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

$$

ANZ540-210800-
Eastern Bay-
1033 PM EDT Mon May 20 2024

.REST OF TONIGHT...S winds 5 kt. Waves less than 1 ft. Patchy fog
with vsby 1 to 3 NM.
.TUE...S winds 5 to 10 kt. Waves 1 ft or less. Patchy fog. Vsby 1 to
3 NM.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.WED...S winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...S winds 10 to 15 kt. Waves 1 ft.
.THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.THU NIGHT...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.FRI...SW winds 5 kt. Waves flat. A chance of showers and tstms
through the night.
.SAT...E winds 5 kt. Waves less than 1 ft. A chance of showers.

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

$$

ANZ533-210800-
Chesapeake Bay from North Beach to Drum Point-
1033 PM EDT Mon May 20 2024

.REST OF TONIGHT...S winds 5 kt. Waves less than 1 ft. Patchy fog
with vsby 1 NM or less.
.TUE...S winds 5 to 10 kt. Waves 1 ft. Patchy fog. Vsby 1 NM or
less.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 to 2 ft.
.WED...S winds 10 to 15 kt. Waves 1 to 2 ft.
.WED NIGHT...S winds 10 to 15 kt. Waves 2 ft.
.THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.THU NIGHT...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.FRI...SW winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms through the night.
.SAT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.

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

$$

ANZ541-210800-
Choptank River to Cambridge MD and the Little Choptank River-
1033 PM EDT Mon May 20 2024

.REST OF TONIGHT...S winds 5 kt. Waves less than 1 ft. Patchy fog
with vsby 1 NM or less.
.TUE...S winds 5 to 10 kt. Waves 1 ft or less. Patchy fog. Vsby 1 NM
or less.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.WED...S winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...S winds 10 to 15 kt. Waves 1 ft.
.THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.THU NIGHT...W winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.FRI...SW winds 5 kt. Waves less than 1 ft. A chance of showers and
tstms through the night.
.SAT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.

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

$$

ANZ542-210800-
Patuxent River to Broomes Island MD-
1033 PM EDT Mon May 20 2024

.REST OF TONIGHT...S winds 5 kt. Waves less than 1 ft. Patchy fog
with vsby 1 to 3 NM.
.TUE...S winds 5 to 10 kt. Waves 1 ft. Patchy fog. Vsby 1 to 3 NM.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.WED...S winds 5 to 10 kt. Waves 1 ft.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.THU...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and
tstms.
.THU NIGHT...W winds 5 kt. Waves less than 1 ft. A chance of showers
and tstms.
.FRI...SE winds 5 kt. Waves less than 1 ft. A chance of showers. A
chance of tstms through the night.
.SAT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.

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

$$

ANZ534-210800-
Chesapeake Bay from Drum Point to Smith Point-
1033 PM EDT Mon May 20 2024

.REST OF TONIGHT...SE winds 5 to 10 kt. Waves 1 ft. Patchy fog with
vsby 1 NM or less.
.TUE...S winds 5 to 10 kt. Waves 1 ft. Patchy fog. Vsby 1 NM or
less.
.TUE NIGHT...S winds 10 kt. Waves 2 ft.
.WED...S winds 10 to 15 kt. Waves 1 to 2 ft.
.WED NIGHT...S winds 10 to 15 kt. Waves 2 ft.
.THU...SW winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers
and tstms.
.THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers
and tstms.
.FRI...W winds 5 to 10 kt...becoming S. Waves 1 ft. A chance of
showers and tstms through the night.
.SAT...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.

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

$$

ANZ543-210800-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1033 PM EDT Mon May 20 2024

.REST OF TONIGHT...SE winds 5 to 10 kt. Waves 1 ft or less. Patchy
fog with vsby 1 NM or less.
.TUE...S winds 5 to 10 kt. Waves 1 ft or less. Patchy fog. Vsby 1 NM
or less.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.WED...S winds 10 to 15 kt. Waves 1 ft.
.WED NIGHT...S winds 10 to 15 kt. Waves 1 to 2 ft.
.THU...SW winds 10 to 15 kt. Waves 1 ft.
.THU NIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of showers
and tstms.
.FRI...W winds 5 to 10 kt...becoming S. Waves 1 ft. A chance of
showers and tstms through the night.
.SAT...SE winds 5 to 10 kt. Waves 1 ft. A chance of showers.

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

$$