fzus51 klwx 220257
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coastal waters forecast
national weather service baltimore md/washington dc
1057 pm edt tue apr 21 2026

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.


anz531-220800-
chesapeake bay from pooles island to sandy point-
1057 pm edt tue apr 21 2026

...small craft advisory in effect through wednesday morning...

.rest of tonight...s winds 15 kt with gusts to 25 kt. waves 2 ft. 
.wed...sw winds 10 to 15 kt with gusts to 20 kt... becoming ne 5 kt
late. waves 1 to 2 ft. a chance of showers. 
.wed night...n winds 5 kt. waves less than 1 ft. 
.thu...nw winds 5 kt. waves flat. 
.thu night...nw winds around 5 kt. waves flat. 
.fri...ne winds 5 kt. waves flat. a chance of showers. 
.fri night...e winds 5 to 10 kt. waves 1 ft. a chance of showers. 
.sat...e winds 10 to 15 kt. waves 1 to 2 ft. showers likely. 
.sun...ne winds 10 to 15 kt. waves 1 to 2 ft. showers likely, mainly
in the morning.  

$$

fzus51 klwx 220257
cwflwx
expires:202604220800;;775520

coastal waters forecast
national weather service baltimore md/washington dc
1057 pm edt tue apr 21 2026

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.


anz532-220800-
chesapeake bay from sandy point to north beach-
1057 pm edt tue apr 21 2026

...small craft advisory in effect through wednesday morning...

.rest of tonight...s winds 15 to 20 kt with gusts to 25 kt. waves
3 ft. 
.wed...sw winds 10 to 15 kt with gusts to 20 kt... becoming w 5 kt
late. waves 3 ft...subsiding to 1 ft in the afternoon. a chance of
showers. 
.wed night...nw winds 5 kt. waves less than 1 ft. a chance of
showers. 
.thu...nw winds 5 kt. waves flat. 
.thu night...w winds 5 kt. waves flat. 
.fri...ne winds 5 kt. waves less than 1 ft. a chance of showers. 
.fri night...e winds 5 to 10 kt. waves 1 ft. a chance of showers. 
.sat...e winds 15 to 20 kt. waves 1 to 2 ft. a chance of showers in
the morning, then showers. 
.sun...ne winds 15 to 20 kt...diminishing to 10 kt after midnight.
waves 1 to 2 ft. showers likely, mainly in the morning.  

$$

fzus51 klwx 220257
cwflwx
expires:202604220800;;775522

coastal waters forecast
national weather service baltimore md/washington dc
1057 pm edt tue apr 21 2026

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.


anz533-220800-
chesapeake bay from north beach to drum point-
1057 pm edt tue apr 21 2026

...small craft advisory in effect through wednesday morning...

.rest of tonight...s winds 15 to 20 kt with gusts to 25 kt. waves
3 ft. 
.wed...sw winds 10 to 15 kt with gusts to 25 kt... becoming w 5 to
10 kt late. waves 3 ft...subsiding to 1 ft in the afternoon. a
chance of showers. 
.wed night...nw winds around 5 kt. waves 1 ft. 
.thu...nw winds 5 kt. waves less than 1 ft. 
.thu night...w winds around 5 kt. waves flat. 
.fri...ne winds 5 kt. waves less than 1 ft. a chance of showers. 
.fri night...e winds 5 to 10 kt. waves 1 ft. a chance of showers. 
.sat...e winds 15 to 20 kt. waves 1 to 2 ft. a chance of showers in
the morning, then showers. 
.sun...ne winds 15 to 20 kt. waves 2 to 3 ft. showers likely, mainly
in the morning.  

$$

fzus51 klwx 220257
cwflwx
expires:202604220800;;775525

coastal waters forecast
national weather service baltimore md/washington dc
1057 pm edt tue apr 21 2026

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.


anz534-220800-
chesapeake bay from drum point to smith point-
1057 pm edt tue apr 21 2026

...small craft advisory in effect through wednesday morning...

.rest of tonight...s winds 20 kt with gusts to 25 kt. waves 3 ft. 
.wed...sw winds 15 to 20 kt with gusts to 25 kt... becoming w 10 to
15 kt in the afternoon. waves 4 ft... subsiding to 2 ft in the
afternoon. a chance of showers. 
.wed night...w winds 5 to 10 kt. waves 1 ft. 
.thu...nw winds 5 kt. waves less than 1 ft. 
.thu night...sw winds 5 kt. waves less than 1 ft. 
.fri...e winds 5 to 10 kt. waves 1 ft. 
.fri night...e winds 10 to 15 kt. waves 1 to 2 ft. a chance of
showers. 
.sat...e winds 15 to 20 kt. waves 2 to 3 ft. a chance of showers in
the morning. showers.
.sun...ne winds 15 to 20 kt. waves 3 ft. showers likely, mainly in
the morning.  

$$

fzus51 klwx 220257
cwflwx
expires:202604220800;;775513

coastal waters forecast
national weather service baltimore md/washington dc
1057 pm edt tue apr 21 2026

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.


anz535-220800-
tidal potomac from key bridge to indian head-
1057 pm edt tue apr 21 2026

...small craft advisory in effect until 8 am edt wednesday...

.rest of tonight...s winds 10 kt. waves 1 ft. 
.wed...sw winds 5 to 10 kt. waves 1 ft. a chance of showers. 
.wed night...nw winds around 5 kt. waves 1 ft. 
.thu...nw winds around 5 kt. waves 1 ft. 
.thu night...nw winds around 5 kt. waves 1 ft or less. 
.fri...ne winds around 5 kt. waves 1 ft. a chance of showers. 
.fri night...e winds 5 kt. waves less than 1 ft. a chance of
showers. 
.sat...e winds 5 to 10 kt. waves 1 ft. a chance of showers in the
morning. showers.
.sun...ne winds 5 to 10 kt. waves 1 ft. showers likely, mainly in
the morning.  

$$

fzus51 klwx 220257
cwflwx
expires:202604220800;;775514

coastal waters forecast
national weather service baltimore md/washington dc
1057 pm edt tue apr 21 2026

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.


anz536-220800-
tidal potomac from indian head to cobb island-
1057 pm edt tue apr 21 2026

...small craft advisory in effect until 8 am edt wednesday...

.rest of tonight...s winds 10 to 15 kt with gusts to 20 kt. waves
1 ft. 
.wed...sw winds 10 to 15 kt...becoming w 5 to 10 kt late. gusts up
to 20 kt. waves 1 ft. a chance of showers. 
.wed night...nw winds 5 to 10 kt. waves 1 ft. 
.thu...nw winds around 5 kt. waves 1 ft. 
.thu night...w winds around 5 kt. waves 1 ft. 
.fri...ne winds around 5 kt. waves 1 ft. a chance of showers. 
.fri night...e winds 5 kt. waves less than 1 ft. a chance of
showers. 
.sat...e winds 5 to 10 kt. waves 1 ft. a chance of showers in the
morning. showers.
.sun...ne winds 5 to 10 kt. waves 1 ft. showers likely, mainly in
the morning.  

$$

fzus51 klwx 220257
cwflwx
expires:202604220800;;775515

coastal waters forecast
national weather service baltimore md/washington dc
1057 pm edt tue apr 21 2026

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.


anz537-220800-
tidal potomac from cobb island to smith point-
1057 pm edt tue apr 21 2026

...small craft advisory in effect through wednesday morning...

.rest of tonight...s winds 15 to 20 kt with gusts to 25 kt. waves
2 ft. 
.wed...sw winds 15 to 20 kt with gusts to 25 kt... becoming w 10 kt
in the afternoon. waves 2 ft. a chance of showers. 
.wed night...w winds 5 to 10 kt. waves 1 ft or less. 
.thu...nw winds 5 kt. waves flat. 
.thu night...sw winds around 5 kt. waves flat. 
.fri...ne winds 5 to 10 kt. waves 1 ft or less. 
.fri night...e winds 5 to 10 kt. waves 1 to 2 ft. a chance of
showers. 
.sat...e winds 10 to 15 kt. waves 2 to 3 ft. a chance of showers in
the morning. showers.
.sun...ne winds 15 to 20 kt. waves 2 to 3 ft. showers likely, mainly
in the morning.  

$$