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coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt thu apr 23 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.


anz531-240800-
chesapeake bay from pooles island to sandy point-
227 pm edt thu apr 23 2026

.this afternoon...s winds 5 kt. waves less than 1 ft. 
.tonight...s winds 5 to 10 kt...becoming ne late. waves 1 ft. 
.fri...ne winds 5 kt. waves less than 1 ft. a chance of showers. 
.fri night...se winds 5 to 10 kt. waves 1 ft. a chance of showers. 
.sat...e winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft.
showers likely. 
.sat night...ne winds 15 kt with gusts to 20 kt. waves 2 ft.
showers.
.sun...ne winds 10 to 15 kt...diminishing to 5 kt after midnight.
waves 1 to 2 ft. showers likely, mainly in the morning. 
.mon...e winds 5 to 10 kt...becoming se after midnight. waves 1 ft. 

$$

fzus51 klwx 231827
cwflwx
expires:202604240800;;865043

coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt thu apr 23 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.


anz532-240800-
chesapeake bay from sandy point to north beach-
227 pm edt thu apr 23 2026

.this afternoon...e winds 5 to 10 kt. waves 1 ft. 
.tonight...s winds 5 to 10 kt...becoming e late. waves 1 ft. 
.fri...ne winds 5 kt. waves less than 1 ft. a chance of showers. 
.fri night...se winds 5 to 10 kt. waves 1 ft. a chance of showers. 
.sat...e winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft.
showers likely. 
.sat night...ne winds 15 kt with gusts to 20 kt. waves 2 ft.
showers.
.sun...ne winds 15 to 20 kt...diminishing to 5 to 10 kt after
midnight. waves 1 to 2 ft. showers likely, mainly in the morning. 
.mon...ne winds 5 to 10 kt...becoming se after midnight. waves 1 ft.
 

$$

fzus51 klwx 231827
cwflwx
expires:202604240800;;865045

coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt thu apr 23 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.


anz533-240800-
chesapeake bay from north beach to drum point-
227 pm edt thu apr 23 2026

.this afternoon...ne winds 10 kt. waves 1 ft. 
.tonight...se winds 5 to 10 kt. waves 1 ft. 
.fri...n winds 5 kt. waves less than 1 ft. a chance of showers. 
.fri night...se winds 5 to 10 kt. waves 1 ft. a chance of showers. 
.sat...e winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft.
showers likely. 
.sat night...ne winds 15 to 20 kt. waves 2 to 3 ft. showers.
.sun...ne winds 15 to 20 kt...diminishing to 5 to 10 kt after
midnight. waves 2 to 3 ft. showers likely, mainly in the morning. 
.mon...ne winds 5 to 10 kt...becoming se after midnight. waves 1 ft.
 

$$

fzus51 klwx 231827
cwflwx
expires:202604240800;;865048

coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt thu apr 23 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.


anz534-240800-
chesapeake bay from drum point to smith point-
227 pm edt thu apr 23 2026

.this afternoon...n winds 5 to 10 kt. waves 1 ft. 
.tonight...s winds 5 to 10 kt. waves 1 ft. 
.fri...ne winds 5 to 10 kt. waves 1 ft. a chance of showers. 
.fri night...se winds 5 to 10 kt. waves 1 ft. a chance of showers. 
.sat...e winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. showers
likely. 
.sat night...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
showers.
.sun...ne winds 15 to 20 kt. waves 2 to 3 ft. showers likely, mainly
in the morning. 
.mon...ne winds 10 to 15 kt...becoming e 5 to 10 kt. waves 1 to
2 ft.  

$$

fzus51 klwx 231827
cwflwx
expires:202604240800;;865036

coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt thu apr 23 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.


anz535-240800-
tidal potomac from key bridge to indian head-
227 pm edt thu apr 23 2026

.this afternoon...nw winds 5 kt. waves less than 1 ft. 
.tonight...e winds around 5 kt. waves 1 ft. 
.fri...ne winds around 5 kt. waves 1 ft. a chance of showers and
tstms. 
.fri night...se winds 5 kt. waves less than 1 ft. a chance of
showers and tstms. 
.sat...e winds 5 to 10 kt. gusts up to 20 kt in the afternoon. waves
1 ft. showers likely. 
.sat night...ne winds 5 to 10 kt with gusts to 20 kt. waves 1 ft.
showers.
.sun...ne winds 5 to 10 kt. waves 1 ft. showers likely, mainly in
the morning. 
.mon...ne winds 5 to 10 kt...becoming se. waves 1 ft. a chance of
showers after midnight.  

winds and waves higher and visibilities lower in and near tstms.

$$

fzus51 klwx 231827
cwflwx
expires:202604240800;;865037

coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt thu apr 23 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.


anz536-240800-
tidal potomac from indian head to cobb island-
227 pm edt thu apr 23 2026

.this afternoon...n winds 5 kt. waves less than 1 ft. a slight
chance of showers. 
.tonight...s winds around 5 kt. waves 1 ft. 
.fri...ne winds around 5 kt. waves 1 ft. a chance of showers and
tstms. 
.fri night...se winds 5 kt. waves less than 1 ft. a chance of
showers. 
.sat...e winds 5 to 10 kt. waves 1 ft. showers likely. 
.sat night...ne winds 5 to 10 kt. waves 1 ft. showers.
.sun...ne winds 10 to 15 kt...becoming n around 5 kt after midnight.
waves 1 ft. showers likely, mainly in the morning. 
.mon...e winds 5 to 10 kt...becoming se after midnight. waves 1 ft.
a chance of showers after midnight.  

winds and waves higher and visibilities lower in and near tstms.

$$

fzus51 klwx 231827
cwflwx
expires:202604240800;;865038

coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt thu apr 23 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.


anz537-240800-
tidal potomac from cobb island to smith point-
227 pm edt thu apr 23 2026

.this afternoon...nw winds 10 kt...becoming ne late. waves 1 ft. 
.tonight...s winds 5 to 10 kt. waves 1 ft. 
.fri...n winds around 5 kt...becoming se late. waves 1 ft. a chance
of showers and tstms. 
.fri night...se winds 5 to 10 kt. waves 1 ft. a chance of showers. 
.sat...e winds 10 to 15 kt. waves 2 ft. showers likely. 
.sat night...ne winds 10 to 15 kt. waves 2 ft. showers.
.sun...ne winds 10 to 15 kt. waves 2 ft. showers likely, mainly in
the morning. 
.mon...ne winds 5 to 10 kt...becoming se after midnight. waves 1 ft.
 

winds and waves higher and visibilities lower in and near tstms.

$$