fzus51 klwx 212057
cwflwx
expires:202604220800;;764168

coastal waters forecast
national weather service baltimore md/washington dc
457 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-
457 pm edt tue apr 21 2026

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

.rest of this afternoon...s winds 10 kt. waves 1 ft. 
.tonight...s winds 10 to 15 kt. gusts up to 20 kt... increasing to
25 kt after midnight. waves 2 to 3 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 flat. 
.thu...nw winds 5 kt. waves flat. 
.thu night...nw winds around 5 kt. waves flat. 
.fri...e winds 5 to 10 kt. waves 1 ft or less. a chance of showers. 
.sat...e winds 10 to 15 kt. waves 1 to 2 ft. showers likely.  

$$

fzus51 klwx 212057
cwflwx
expires:202604220800;;764171

coastal waters forecast
national weather service baltimore md/washington dc
457 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-
457 pm edt tue apr 21 2026

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

.rest of this afternoon...s winds 15 kt. waves 1 ft. 
.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...e winds 5 to 10 kt. waves 1 ft or less. 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.  

$$

fzus51 klwx 212057
cwflwx
expires:202604220800;;764173

coastal waters forecast
national weather service baltimore md/washington dc
457 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-
457 pm edt tue apr 21 2026

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

.rest of this afternoon...se winds 15 kt. waves 1 ft. 
.tonight...s winds 15 to 20 kt with gusts to 25 kt. waves 2 to 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...e winds 5 to 10 kt. waves 1 ft or less. 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.  

$$

fzus51 klwx 212057
cwflwx
expires:202604220800;;764176

coastal waters forecast
national weather service baltimore md/washington dc
457 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-
457 pm edt tue apr 21 2026

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

.rest of this afternoon...se winds 15 kt. waves 1 ft. 
.tonight...s winds 20 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 10 to 15 kt. waves 1 to 2 ft. a chance of showers
through the night. 
.sat...e winds 15 to 20 kt. waves 2 to 3 ft. a chance of showers in
the morning. showers. 

$$

fzus51 klwx 212057
cwflwx
expires:202604220800;;764164

coastal waters forecast
national weather service baltimore md/washington dc
457 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-
457 pm edt tue apr 21 2026

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

.rest of this afternoon...s winds 10 kt. waves 1 ft. 
.tonight...s winds 5 to 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...e winds around 5 kt. waves 1 ft. a chance of showers. 
.sat...e winds 5 to 10 kt. waves 1 ft. a chance of showers in the
morning. showers. 

$$

fzus51 klwx 212057
cwflwx
expires:202604220800;;764165

coastal waters forecast
national weather service baltimore md/washington dc
457 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-
457 pm edt tue apr 21 2026

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

.rest of this afternoon...s winds 10 kt. waves 1 ft. 
.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...e winds around 5 kt. waves 1 ft. a chance of showers. 
.sat...e winds 5 to 10 kt. waves 1 ft. a chance of showers in the
morning. showers. 

$$

fzus51 klwx 212057
cwflwx
expires:202604220800;;764166

coastal waters forecast
national weather service baltimore md/washington dc
457 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-
457 pm edt tue apr 21 2026

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

.rest of this afternoon...se winds 15 kt. waves 1 ft. 
.tonight...s winds 10 to 15 kt with gusts to 25 kt... increasing to
15 to 20 kt with gusts to 25 kt late. waves 2 ft. 
.wed...sw winds 15 to 20 kt with gusts to 25 kt... becoming w 10 kt
in the afternoon. waves 1 to 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...e winds 5 to 10 kt. waves 1 ft or less...building to 2 ft
after midnight. a chance of showers through the night. 
.sat...e winds 10 to 15 kt. waves 2 to 3 ft. a chance of showers in
the morning. showers. 

$$