Coastal Waters Forecast
Issued by NWS Sterling, VA

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FZUS51 KLWX 212343
CWFLWX

Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
643 PM EST Tue Nov 21 2017

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.

ANZ500-220915-
643 PM EST Tue Nov 21 2017

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

A cold front will pass through late tonight into early Wednesday
morning. High pressure will return later Wednesday through early
Friday, then another cold front will approach late Friday into
Saturday. A Small Craft Advisory will likely be needed for portions
of the waters Wednesday night, and again Friday night through
Saturday.

$$

ANZ535-220915-
Tidal Potomac from Key Bridge to Indian Head-
643 PM EST Tue Nov 21 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...

.TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of rain.
.WED...NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.WED NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.THU...SW winds around 5 kt. Waves 1 ft.
.THU NIGHT...W winds around 5 kt. Waves 1 ft.
.FRI...S winds around 5 kt. Waves 1 ft or less.
.FRI NIGHT...S winds around 5 kt. Waves 1 ft.
.SAT...W winds 5 kt. Waves less than 1 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 ft.

$$

ANZ536-220915-
Tidal Potomac from Indian Head to Cobb Island-
643 PM EST Tue Nov 21 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...

.TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of rain this
evening, then rain likely after midnight.
.WED...NW winds 5 to 10 kt with gusts to 20 kt. Waves 1 to 2 ft.
.WED NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.THU...SW winds around 5 kt. Waves 1 ft.
.THU NIGHT...Light winds. Waves 1 ft or less.
.FRI...S winds around 5 kt. Waves 1 ft or less.
.FRI NIGHT...S winds 5 kt. Waves less than 1 ft.
.SAT...W winds 5 to 10 kt. Waves 1 ft.
.SUN...NW winds 10 to 15 kt...diminishing to 5 kt after midnight.
Waves 1 ft.

$$

ANZ537-220915-
Tidal Potomac from Cobb Island to Smith Point-
643 PM EST Tue Nov 21 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EST WEDNESDAY THROUGH
LATE WEDNESDAY NIGHT...

.TONIGHT...S winds 10 to 15 kt with gusts to 20 kt... becoming SW
5 kt late. Waves 1 to 2 ft. A chance of rain this evening, then rain
after midnight.
.WED...NW winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft.
.WED NIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 2 to
3 ft.
.THU...W winds 5 to 10 kt. Waves 1 to 2 ft.
.THU NIGHT...W winds around 5 kt. Waves 1 ft.
.FRI...SE winds around 5 kt. Waves flat.
.FRI NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.SAT...W winds 5 to 10 kt. Waves 1 to 2 ft.
.SUN...NW winds 10 to 15 kt. Waves 2 to 3 ft.

$$

ANZ530-220915-
Chesapeake Bay north of Pooles Island-
643 PM EST Tue Nov 21 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...

.TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt until early
morning. Waves 1 to 2 ft. A chance of rain this evening, then rain
likely after midnight.
.WED...NW winds 10 to 15 kt. Gusts up to 20 kt. Waves 1 to 2 ft.
.WED NIGHT...NW winds 5 to 10 kt. Waves 1 ft.
.THU...W winds 5 kt. Waves flat.
.THU NIGHT...W winds 5 kt. Waves flat.
.FRI...W winds 5 kt. Waves flat.
.FRI NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.SAT...W winds 5 to 10 kt. Waves 1 ft.
.SUN...NW winds 10 to 15 kt. Waves 1 ft.

$$

ANZ531-220915-
Chesapeake Bay from Pooles Island to Sandy Point-
643 PM EST Tue Nov 21 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EST WEDNESDAY THROUGH
LATE WEDNESDAY NIGHT...

.TONIGHT...SW winds 10 kt. Gusts up to 20 kt. Waves 2 ft. A chance
of rain this evening, then rain likely after midnight.
.WED...NW winds 10 to 15 kt with gusts to 25 kt. Waves 2 to 3 ft.
.WED NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.THU...NW winds 5 kt. Waves less than 1 ft.
.THU NIGHT...W winds 5 kt. Waves less than 1 ft.
.FRI...W winds 5 kt. Waves flat.
.FRI NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.SAT...W winds 5 to 10 kt. Waves 1 to 2 ft.
.SUN...NW winds 10 to 15 kt. Waves 2 to 3 ft.

$$

ANZ538-220915-
Patapsco River including Baltimore Harbor-
643 PM EST Tue Nov 21 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...

.TONIGHT...SW winds 5 to 10 kt. Waves 1 ft. A chance of rain this
evening, then rain likely after midnight.
.WED...NW winds 10 to 15 kt. Gusts up to 20 kt. Waves 1 ft.
.WED NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt until early
morning. Waves 1 ft.
.THU...W winds 5 kt. Waves flat.
.THU NIGHT...W winds 5 kt. Waves flat.
.FRI...SW winds around 5 kt. Waves flat.
.FRI NIGHT...S winds 5 kt. Waves less than 1 ft.
.SAT...W winds 5 to 10 kt. Waves 1 ft or less.
.SUN...NW winds 10 to 15 kt. Waves 1 ft.

$$

ANZ539-220915-
Chester River to Queenstown MD-
643 PM EST Tue Nov 21 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EST WEDNESDAY THROUGH
LATE WEDNESDAY NIGHT...

.TONIGHT...SW winds 10 kt. Gusts up to 20 kt. Waves 1 to 2 ft. A
chance of rain this evening, then rain likely after midnight.
.WED...NW winds 5 to 10 kt...increasing to 15 kt with gusts to 25 kt
in the late morning and afternoon. Waves 2 to 3 ft.
.WED NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft.
.THU...NW winds 5 kt. Waves less than 1 ft.
.THU NIGHT...W winds 5 kt. Waves less than 1 ft.
.FRI...W winds 5 kt. Waves flat.
.FRI NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.SAT...W winds 5 to 10 kt. Waves 1 to 2 ft.
.SUN...NW winds 10 to 15 kt. Waves 2 ft.

$$

ANZ532-220915-
Chesapeake Bay from Sandy Point to North Beach-
643 PM EST Tue Nov 21 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EST WEDNESDAY THROUGH
LATE WEDNESDAY NIGHT...

.TONIGHT...S winds 15 to 20 kt with gusts to 25 kt... becoming SW
10 kt after midnight. Waves 2 ft. A chance of rain this evening,
then rain likely after midnight.
.WED...NW winds 5 to 10 kt...increasing to 15 to 20 kt with gusts to
25 kt in the late morning and afternoon. Waves 2 to 3 ft.
.WED NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.THU...W winds 5 to 10 kt. Waves 1 ft or less.
.THU NIGHT...W winds 5 kt. Waves less than 1 ft.
.FRI...W winds 5 kt. Waves flat.
.FRI NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.SAT...W winds 5 to 10 kt. Waves 1 ft.
.SUN...NW winds 10 to 15 kt. Waves 1 to 2 ft.

$$

ANZ540-220915-
Eastern Bay-
643 PM EST Tue Nov 21 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EST WEDNESDAY THROUGH
LATE WEDNESDAY NIGHT...

.TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt. Waves 2 ft. A
chance of rain this evening, then rain after midnight.
.WED...NW winds 5 to 10 kt...increasing to 15 kt with gusts to 25 kt
in the late morning and afternoon. Waves 2 ft.
.WED NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft.
.THU...NW winds 5 to 10 kt. Waves 1 ft or less.
.THU NIGHT...W winds 5 kt. Waves less than 1 ft.
.FRI...W winds 5 kt. Waves flat.
.FRI NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.SAT...W winds 5 to 10 kt. Waves 1 ft.
.SUN...NW winds 10 to 15 kt. Waves 1 to 2 ft.

$$

ANZ533-220915-
Chesapeake Bay from North Beach to Drum Point-
643 PM EST Tue Nov 21 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EST WEDNESDAY THROUGH
LATE WEDNESDAY NIGHT...

.TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A
chance of rain this evening, then rain after midnight.
.WED...NW winds 10 kt...increasing to 15 to 20 kt in the late
morning and afternoon. Gusts up to 25 kt. Waves 2 to 3 ft.
.WED NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 2 to
3 ft.
.THU...NW winds 5 to 10 kt. Waves 1 ft or less.
.THU NIGHT...W winds 5 kt. Waves less than 1 ft.
.FRI...SW winds around 5 kt. Waves 1 ft or less.
.FRI NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.SAT...W winds 10 to 15 kt. Waves 1 to 2 ft.
.SUN...NW winds 10 to 15 kt. Waves 2 ft.

$$

ANZ541-220915-
Choptank River to Cambridge MD and the Little Choptank River-
643 PM EST Tue Nov 21 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EST WEDNESDAY THROUGH
LATE WEDNESDAY NIGHT...

.TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft. A chance of rain this evening, then rain after midnight.
.WED...NW winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft.
.WED NIGHT...N winds 10 to 15 kt. Gusts up to 20 kt. Waves 2 ft.
.THU...NW winds 5 to 10 kt. Waves 1 ft or less.
.THU NIGHT...W winds 5 kt. Waves less than 1 ft.
.FRI...SW winds around 5 kt. Waves 1 ft or less.
.FRI NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.SAT...W winds 5 to 10 kt. Waves 1 to 2 ft.
.SUN...NW winds 10 to 15 kt. Waves 2 to 3 ft.

$$

ANZ542-220915-
Patuxent River to Broomes Island MD-
643 PM EST Tue Nov 21 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...

.TONIGHT...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft. A
chance of rain this evening, then rain after midnight.
.WED...NW winds 5 to 10 kt...increasing to 15 to 20 kt with gusts to
25 kt in the late morning and afternoon. Waves 1 ft.
.WED NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.THU...NW winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...W winds 5 kt. Waves less than 1 ft.
.FRI...S winds around 5 kt. Waves 1 ft or less.
.FRI NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.SAT...W winds 5 to 10 kt. Waves 1 ft.
.SUN...NW winds 10 to 15 kt. Waves 1 ft.

$$

ANZ534-220915-
Chesapeake Bay from Drum Point to Smith Point-
643 PM EST Tue Nov 21 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EST WEDNESDAY THROUGH
LATE WEDNESDAY NIGHT...

.TONIGHT...S winds 10 to 15 kt with gusts to 25 kt... becoming SW
5 kt late. Waves 2 to 3 ft. A chance of rain this evening, then rain
after midnight.
.WED...NW winds 15 to 20 kt. Gusts up to 25 kt. Waves 3 ft.
.WED NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.THU...NW winds 5 to 10 kt. Waves 1 to 2 ft.
.THU NIGHT...W winds 5 to 10 kt. Waves 1 ft.
.FRI...SW winds around 5 kt. Waves 1 ft or less.
.FRI NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.SAT...W winds 10 to 15 kt. Waves 1 ft...building to 3 ft after
midnight.
.SUN...NW winds 15 to 20 kt. Waves 3 ft.

$$

ANZ543-220915-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
643 PM EST Tue Nov 21 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EST WEDNESDAY THROUGH
LATE WEDNESDAY NIGHT...

.TONIGHT...S winds 10 to 15 kt with gusts to 25 kt... becoming SW
5 kt late. Waves 1 to 2 ft. A chance of rain this evening, then rain
after midnight.
.WED...NW winds 15 to 20 kt. Gusts up to 25 kt. Waves 2 ft.
.WED NIGHT...N winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
.THU...NW winds 5 to 10 kt. Waves 1 ft.
.THU NIGHT...NW winds around 5 kt. Waves 1 ft or less.
.FRI...SW winds around 5 kt. Waves flat.
.FRI NIGHT...S winds 5 to 10 kt. Waves 1 ft.
.SAT...W winds 10 to 15 kt. Waves 1 to 2 ft.
.SUN...NW winds 15 to 20 kt. Waves 3 ft.

$$



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