Coastal Waters Forecast
Issued by NWS Sterling, VA

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FZUS51 KLWX 200835
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
434 AM EDT Thu Sep 20 2018

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.

ANZ500-202300-
434 AM EDT Thu Sep 20 2018

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

High pressure will build over the waters through today before moving
 offshore Friday. A cold front will approach from the Great Lakes
Friday, then stall near or just south of the waters into early next
week. Small Craft Advisories may be needed for portions of the
waters late Friday into Saturday.

$$

ANZ535-202300-
Tidal Potomac from Key Bridge to Indian Head-
434 AM EDT Thu Sep 20 2018

.REST OF THE OVERNIGHT...N winds 5 kt. Waves less than 1 ft. Patchy
fog. Vsby 1 to 3 NM.
.TODAY...SE winds around 5 kt. Waves 1 ft.
.TONIGHT...SE winds 5 kt. Waves less than 1 ft.
.FRI...S winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.SAT...NW winds 5 kt. Waves less than 1 ft. A chance of showers.
.SAT NIGHT...NE winds 5 kt. Waves less than 1 ft. A chance of
showers.
.SUN...NE winds 5 kt. Waves less than 1 ft. A chance of showers.
.MON...E winds 5 kt. Waves less than 1 ft. A chance of showers.

$$

ANZ536-202300-
Tidal Potomac from Indian Head to Cobb Island-
434 AM EDT Thu Sep 20 2018

.REST OF THE OVERNIGHT...N winds 5 kt. Waves less than 1 ft. Patchy
fog. Vsby 1 to 3 NM.
.TODAY...SE winds around 5 kt. Waves 1 ft.
.TONIGHT...SE winds around 5 kt. Waves 1 ft.
.FRI...S winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.SAT...NW winds 5 kt. Waves less than 1 ft. A chance of showers.
.SAT NIGHT...NE winds 5 kt. Waves less than 1 ft. A chance of
showers.
.SUN...NE winds 5 kt. Waves less than 1 ft. A chance of showers.
.MON...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.

$$

ANZ537-202300-
Tidal Potomac from Cobb Island to Smith Point-
434 AM EDT Thu Sep 20 2018

.REST OF THE OVERNIGHT...NE winds 5 kt. Waves flat. Patchy fog. Vsby
1 to 3 NM.
.TODAY...E winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...SE winds 5 to 10 kt. Waves 2 ft.
.FRI...SE winds 5 to 10 kt. Waves 1 to 2 ft.
.FRI NIGHT...S winds 5 to 10 kt with gusts to 20 kt. Waves 2 ft.
.SAT...W winds 5 to 10 kt...becoming N in the afternoon. Waves 1 ft.
A chance of showers.
.SAT NIGHT...NE winds 5 kt. Waves less than 1 ft. A chance of
showers.
.SUN...NE winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers.
.MON...E winds 10 to 15 kt. Waves 2 ft. A chance of showers.

$$

ANZ530-202300-
Chesapeake Bay north of Pooles Island-
434 AM EDT Thu Sep 20 2018

.REST OF THE OVERNIGHT...NE winds 5 kt. Waves flat.
.TODAY...E winds 5 kt. Waves less than 1 ft.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.FRI...S winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.SAT...N winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...N winds 5 kt. Waves less than 1 ft. A chance of
showers.
.SUN...NE winds 5 kt. Waves less than 1 ft. A chance of showers.
.MON...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.

$$

ANZ531-202300-
Chesapeake Bay from Pooles Island to Sandy Point-
434 AM EDT Thu Sep 20 2018

.REST OF THE OVERNIGHT...NE winds 5 kt. Waves less than 1 ft.
.TODAY...E winds 5 kt. Waves less than 1 ft.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.FRI...S winds 10 to 15 kt. Waves 1 to 2 ft.
.FRI NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SAT...N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SAT NIGHT...N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SUN...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.MON...E winds 10 to 15 kt. Waves 1 ft. A chance of showers.

$$

ANZ538-202300-
Patapsco River including Baltimore Harbor-
434 AM EDT Thu Sep 20 2018

.REST OF THE OVERNIGHT...NE winds 5 kt. Waves flat.
.TODAY...E winds 5 kt. Waves less than 1 ft.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.FRI...S winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.SAT...N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SAT NIGHT...N winds 5 kt. Waves less than 1 ft. A chance of
showers.
.SUN...NE winds 5 kt. Waves less than 1 ft. A chance of showers.
.MON...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.

$$

ANZ539-202300-
Chester River to Queenstown MD-
434 AM EDT Thu Sep 20 2018

.REST OF THE OVERNIGHT...NE winds 5 kt. Waves flat.
.TODAY...E winds around 5 kt. Waves 1 ft or less.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.FRI...S winds 10 to 15 kt. Waves 1 to 2 ft.
.FRI NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SAT...NW winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SAT NIGHT...N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SUN...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.MON...E winds 10 to 15 kt. Waves 1 ft. A chance of showers.

$$

ANZ532-202300-
Chesapeake Bay from Sandy Point to North Beach-
434 AM EDT Thu Sep 20 2018

.REST OF THE OVERNIGHT...NE winds 5 kt. Waves less than 1 ft.
.TODAY...E winds 5 kt. Waves less than 1 ft.
.TONIGHT...SE winds 5 to 10 kt. Waves 2 ft.
.FRI...S winds 10 to 15 kt. Waves 1 to 2 ft.
.FRI NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 to
3 ft.
.SAT...N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SUN...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.MON...E winds 10 to 15 kt. Waves 1 ft. A chance of showers.

$$

ANZ540-202300-
Eastern Bay-
434 AM EDT Thu Sep 20 2018

.REST OF THE OVERNIGHT...NE winds 5 kt. Waves flat. Patchy fog. Vsby
1 to 3 NM.
.TODAY...E winds 5 kt. Waves less than 1 ft.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.FRI...S winds 10 to 15 kt. Waves 1 to 2 ft.
.FRI NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SAT...NW winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SUN...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.MON...E winds 10 to 15 kt. Waves 1 ft. A chance of showers.

$$

ANZ533-202300-
Chesapeake Bay from North Beach to Drum Point-
434 AM EDT Thu Sep 20 2018

.REST OF THE OVERNIGHT...NE winds 5 kt. Waves less than 1 ft. Patchy
fog. Vsby 1 to 3 NM.
.TODAY...E winds 5 kt. Waves less than 1 ft.
.TONIGHT...SE winds 5 to 10 kt. Waves 2 ft.
.FRI...SE winds 10 to 15 kt. Waves 1 to 2 ft.
.FRI NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SAT...NW winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SUN...NE winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers.
.MON...E winds 10 to 15 kt. Waves 2 to 3 ft. A chance of showers.

$$

ANZ541-202300-
Choptank River to Cambridge MD and the Little Choptank River-
434 AM EDT Thu Sep 20 2018

.REST OF THE OVERNIGHT...E winds 5 kt. Waves flat. Patchy fog. Vsby
1 to 3 NM.
.TODAY...E winds 5 kt. Waves less than 1 ft.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 ft.
.FRI...SE winds 10 to 15 kt. Waves 1 to 2 ft.
.FRI NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SAT...NW winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SUN...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.MON...E winds 10 to 15 kt. Waves 1 ft. A chance of showers.

$$

ANZ542-202300-
Patuxent River to Broomes Island MD-
434 AM EDT Thu Sep 20 2018

.REST OF THE OVERNIGHT...NE winds 5 kt. Waves flat. Patchy fog. Vsby
1 to 3 NM.
.TODAY...E winds 5 kt. Waves less than 1 ft.
.TONIGHT...SE winds 5 kt. Waves less than 1 ft.
.FRI...S winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...S winds 10 kt. Waves 1 ft.
.SAT...NW winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SAT NIGHT...NE winds 5 kt. Waves less than 1 ft. A chance of
showers.
.SUN...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.MON...E winds 5 to 10 kt. Waves 1 ft. A chance of showers.

$$

ANZ534-202300-
Chesapeake Bay from Drum Point to Smith Point-
434 AM EDT Thu Sep 20 2018

.REST OF THE OVERNIGHT...E winds 5 kt. Waves less than 1 ft.
.TODAY...E winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...SE winds 10 to 15 kt. Waves 2 ft.
.FRI...SE winds 10 to 15 kt. Waves 1 to 2 ft.
.FRI NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 3 ft.
.SAT...W winds 10 to 15 kt...becoming N 5 to 10 kt in the afternoon.
Waves 1 to 2 ft. A chance of showers.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
.SUN...NE winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers.
.MON...E winds 10 to 15 kt. Waves 2 to 3 ft. A chance of showers.

$$

ANZ543-202300-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
434 AM EDT Thu Sep 20 2018

.REST OF THE OVERNIGHT...E winds 5 kt. Waves flat. Patchy fog. Vsby
1 to 3 NM.
.TODAY...E winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...E winds 5 to 10 kt. Waves 1 ft.
.FRI...SE winds 5 to 10 kt. Waves 1 ft.
.FRI NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SAT...NW winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers.
.SAT NIGHT...NE winds 5 kt. Waves less than 1 ft. A chance of
showers.
.SUN...NE winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers.
.MON...E winds 10 to 15 kt. Waves 2 ft. A chance of showers.

$$



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