fzus51 klwx 211135
cwflwx
expires:202604212000;;742283

coastal waters forecast
national weather service baltimore md/washington dc
735 am 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.


anz530-212000-
chesapeake bay north of pooles island-
735 am edt tue apr 21 2026

.today...sw winds 5 kt. waves less than 1 ft. 
.tonight...s winds 5 to 10 kt. waves 1 ft. 
.wed...sw winds 5 to 10 kt. waves 1 ft. showers likely. 
.wed night...nw winds around 5 kt. waves 1 ft or less. 
.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 or less. a chance of showers
through the night. 
.sat...e winds 10 to 15 kt. waves 1 ft. a chance of showers in the
morning, then showers likely.  

$$

fzus51 klwx 211135
cwflwx
expires:202604212000;;742284

coastal waters forecast
national weather service baltimore md/washington dc
735 am 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.


anz531-212000-
chesapeake bay from pooles island to sandy point-
735 am edt tue apr 21 2026

.today...e winds 5 kt...becoming s late. waves 1 ft. 
.tonight...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. 
.wed...sw winds 10 to 15 kt...diminishing to 5 kt in the afternoon.
waves 1 to 2 ft. showers likely. 
.wed night...nw winds around 5 kt. waves 1 ft or less. 
.thu...nw winds 5 kt. waves flat. 
.thu night...se 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. a chance of showers in
the morning, then showers likely.  

$$

fzus51 klwx 211135
cwflwx
expires:202604212000;;742287

coastal waters forecast
national weather service baltimore md/washington dc
735 am 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.


anz532-212000-
chesapeake bay from sandy point to north beach-
735 am edt tue apr 21 2026

...small craft advisory in effect from this evening through
wednesday morning...

.today...ne winds 5 to 10 kt...becoming se this afternoon. waves
1 ft. 
.tonight...s winds 15 to 20 kt. waves 2 to 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. showers
likely. 
.wed night...nw winds around 5 kt. waves 1 ft or less. 
.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 10 to 15 kt...becoming ne 15 to 20 kt after midnight.
waves 1 to 2 ft. a chance of showers in the morning, then showers
likely.  

$$

fzus51 klwx 211135
cwflwx
expires:202604212000;;742289

coastal waters forecast
national weather service baltimore md/washington dc
735 am 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.


anz533-212000-
chesapeake bay from north beach to drum point-
735 am edt tue apr 21 2026

...small craft advisory in effect from this evening through
wednesday morning...

.today...e winds 5 to 10 kt...becoming se late. waves 1 ft. 
.tonight...s winds 15 to 20 kt. waves 2 to 3 ft. 
.wed...sw winds 15 to 20 kt...becoming w 5 to 10 kt in the
afternoon. waves 3 ft...subsiding to 1 ft in the afternoon. showers
likely. 
.wed night...nw winds around 5 kt. waves 1 ft or less. 
.thu...nw winds around 5 kt. waves 1 ft. 
.thu night...sw winds around 5 kt. waves flat. 
.fri...ne winds 5 kt...becoming se. waves 1 ft or less. a chance of
showers through the night. 
.sat...e winds 10 to 15 kt...becoming ne 15 to 20 kt after midnight.
waves 1 to 2 ft. a chance of showers in the morning, then showers
likely.  

$$