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coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt tue aug 18 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.


anz530-190800-
chesapeake bay north of pooles island-
227 pm edt tue aug 18 2026

.this afternoon...nw winds 5 kt. waves less than 1 ft. a slight
chance of showers. 
.tonight...nw winds around 5 kt. waves flat. 
.wed...w winds around 5 kt. waves flat. 
.wed night...w winds around 5 kt. waves flat. 
.thu...n winds around 5 kt. waves flat. showers likely with a chance
of tstms. 
.thu night...n winds 5 to 10 kt. waves 1 ft or less. a chance of
showers. 
.fri...e winds 5 to 10 kt. waves 1 ft or less. a chance of showers
in the afternoon. a chance of showers and tstms through the night. 
.sat...se winds 5 kt. waves flat. a chance of showers. a chance of
tstms through the night.  

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

$$

fzus51 klwx 181827
cwflwx
expires:202608190800;;947844

coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt tue aug 18 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.


anz531-190800-
chesapeake bay from pooles island to sandy point-
227 pm edt tue aug 18 2026

.this afternoon...n winds 5 kt. waves less than 1 ft. a slight
chance of showers. 
.tonight...n winds around 5 kt. waves 1 ft or less. 
.wed...w winds 5 kt. waves flat. 
.wed night...sw winds 5 kt. waves flat. 
.thu...n winds 5 kt. waves flat. showers likely. 
.thu night...n winds 5 to 10 kt. waves 1 ft or less. a chance of
showers. 
.fri...e winds 5 to 10 kt. waves 1 ft. a chance of showers in the
afternoon. showers likely with a chance of tstms through the night. 
.sat...se winds 5 kt. waves less than 1 ft. showers likely in the
morning. a chance of showers. a chance of tstms through the night.  

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

$$

fzus51 klwx 181827
cwflwx
expires:202608190800;;947847

coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt tue aug 18 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.


anz532-190800-
chesapeake bay from sandy point to north beach-
227 pm edt tue aug 18 2026

.this afternoon...n winds 5 kt. waves less than 1 ft. a slight
chance of showers. 
.tonight...n winds around 5 kt. waves 1 ft or less. 
.wed...w winds 5 kt. waves flat. 
.wed night...sw winds 5 kt. waves less than 1 ft. 
.thu...ne winds 5 kt. waves less than 1 ft. showers likely. 
.thu night...ne winds 5 to 10 kt. waves 1 ft. a chance of showers
and tstms. 
.fri...ne winds 5 to 10 kt...becoming se after midnight. waves 1 ft.
a chance of showers in the afternoon. showers likely with a chance
of tstms through the night. 
.sat...se winds 5 kt. waves less than 1 ft. showers likely in the
morning. a chance of showers. a chance of tstms through the night.  

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

$$

fzus51 klwx 181827
cwflwx
expires:202608190800;;947849

coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt tue aug 18 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.


anz533-190800-
chesapeake bay from north beach to drum point-
227 pm edt tue aug 18 2026

.this afternoon...n winds 5 to 10 kt. waves 1 ft. a slight chance of
showers. 
.tonight...n winds around 5 kt. waves 1 ft or less. 
.wed...nw winds 5 kt. waves less than 1 ft. 
.wed night...sw winds 5 kt. waves less than 1 ft. 
.thu...nw winds 5 kt. waves less than 1 ft. showers likely. 
.thu night...ne winds 5 to 10 kt. waves 1 ft. a chance of showers
and tstms. 
.fri...ne winds 5 to 10 kt...becoming se after midnight. waves 1 ft.
showers likely. a chance of tstms through the night. 
.sat...se winds 5 kt. waves less than 1 ft. showers likely. a chance
of tstms through the night. a chance of showers after midnight.  

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

$$