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coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt tue aug 25 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.


anz531-260800-
chesapeake bay from pooles island to sandy point-
457 pm edt tue aug 25 2026

...small craft advisory in effect from wednesday evening through
late wednesday night...

.rest of this afternoon...w winds 5 kt. waves less than 1 ft. 
.tonight...nw winds around 5 kt. waves 1 ft or less. 
.wed...e winds around 5 kt...becoming s in the afternoon. waves 1 ft
or less. 
.wed night...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. a
chance of showers. 
.thu...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. a chance
of showers and tstms. 
.thu night...s winds 10 to 15 kt with gusts to 20 kt...diminishing
to 5 kt after midnight. waves 1 to 2 ft. a chance of showers and
tstms. 
.fri...n winds around 5 kt...increasing to 5 to 10 kt after
midnight. waves 1 ft or less. a chance of showers. a chance of tstms
through the night. 
.sat...ne winds 5 to 10 kt. waves 1 ft or less.  

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

$$

fzus51 klwx 252057
cwflwx
expires:202608260800;;354076

coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt tue aug 25 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.


anz532-260800-
chesapeake bay from sandy point to north beach-
457 pm edt tue aug 25 2026

...small craft advisory in effect from wednesday evening through
late wednesday night...

.rest of this afternoon...sw winds 5 kt. waves less than 1 ft. 
.tonight...w winds 5 kt. waves less than 1 ft. 
.wed...e winds around 5 kt...becoming s 10 to 15 kt in the
afternoon. waves flat...building to 2 ft in the afternoon. 
.wed night...s winds 10 to 15 kt with gusts to 25 kt. waves 3 ft. a
chance of showers. 
.thu...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. a chance
of showers. 
.thu night...s winds 10 to 15 kt. gusts up to 20 kt in the evening.
waves 1 to 2 ft. a chance of showers and tstms. 
.fri...n winds around 5 kt. waves 1 ft or less. a chance of showers
in the morning, then showers likely with a chance of tstms through
the night. a chance of showers after midnight.
.sat...ne winds 5 to 10 kt. waves 1 ft. a chance of showers in the
morning.  

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

$$

fzus51 klwx 252057
cwflwx
expires:202608260800;;354078

coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt tue aug 25 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.


anz533-260800-
chesapeake bay from north beach to drum point-
457 pm edt tue aug 25 2026

...small craft advisory in effect from wednesday evening through
late wednesday night...

.rest of this afternoon...s winds 5 kt. waves flat. 
.tonight...sw winds 5 kt. waves less than 1 ft. 
.wed...e winds around 5 kt...becoming s 10 to 15 kt in the
afternoon. waves flat...building to 2 ft in the afternoon. 
.wed night...s winds 15 to 20 kt with gusts to 25 kt. waves 3 ft. a
chance of showers. 
.thu...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. a chance
of showers. 
.thu night...s winds 10 to 15 kt. gusts up to 20 kt in the evening.
waves 1 to 2 ft. a chance of showers and tstms. 
.fri...nw winds around 5 kt. waves 1 ft or less. a chance of showers
in the morning, then showers likely with a chance of tstms through
the night. a chance of showers after midnight. 
.sat...ne winds 5 to 10 kt. waves 1 ft. a chance of showers.  

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

$$

fzus51 klwx 252057
cwflwx
expires:202608260800;;354081

coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt tue aug 25 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.


anz534-260800-
chesapeake bay from drum point to smith point-
457 pm edt tue aug 25 2026

...small craft advisory in effect from wednesday evening through
late wednesday night...

.rest of this afternoon...w winds 5 kt. waves less than 1 ft. 
.tonight...sw winds 5 kt. waves flat. 
.wed...sw winds around 5 kt...becoming s 10 to 15 kt in the
afternoon. waves flat...building to 2 ft in the afternoon. 
.wed night...s winds 15 to 20 kt with gusts to 25 kt. waves 3 ft. a
chance of showers. 
.thu...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. a chance
of showers. 
.thu night...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. a
chance of showers and tstms. 
.fri...s winds 5 to 10 kt...becoming n after midnight. waves 1 ft.
showers likely with a chance of tstms. 
.sat...ne winds 5 to 10 kt. waves 1 ft. a chance of showers.  

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

$$

fzus51 klwx 252057
cwflwx
expires:202608260800;;354069

coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt tue aug 25 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.


anz535-260800-
tidal potomac from key bridge to indian head-
457 pm edt tue aug 25 2026

.rest of this afternoon...nw winds 5 kt. waves less than 1 ft. 
.tonight...nw winds around 5 kt. waves 1 ft or less. 
.wed...e winds around 5 kt...becoming s in the afternoon. waves
1 ft. 
.wed night...s winds 5 to 10 kt. waves 1 ft. a chance of showers. 
.thu...s winds 5 to 10 kt. waves 1 ft. a chance of showers and
tstms. 
.thu night...s winds 5 to 10 kt. waves 1 ft. a chance of showers. 
.fri...nw winds around 5 kt. waves 1 ft or less. a chance of tstms
through the night. a chance of showers. 
.sat...ne winds around 5 kt. waves 1 ft. a chance of showers through
the night.  

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

$$

fzus51 klwx 252057
cwflwx
expires:202608260800;;354070

coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt tue aug 25 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.


anz536-260800-
tidal potomac from indian head to cobb island-
457 pm edt tue aug 25 2026

.rest of this afternoon...w winds 5 kt. waves less than 1 ft. 
.tonight...w winds around 5 kt. waves 1 ft or less. 
.wed...sw winds around 5 kt...becoming s late. waves 1 ft. 
.wed night...s winds 5 to 10 kt with gusts to 20 kt. waves 1 ft. a
chance of showers. 
.thu...s winds 5 to 10 kt. waves 1 ft. a chance of showers. 
.thu night...s winds 5 to 10 kt. waves 1 ft. a chance of showers. 
.fri...nw winds around 5 kt. waves 1 ft or less. a chance of showers
in the morning, then showers likely with a chance of tstms through
the night. a chance of showers after midnight. 
.sat...ne winds around 5 kt. waves 1 ft or less. a chance of
showers.  

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

$$

fzus51 klwx 252057
cwflwx
expires:202608260800;;354071

coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt tue aug 25 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.


anz537-260800-
tidal potomac from cobb island to smith point-
457 pm edt tue aug 25 2026

...small craft advisory in effect from wednesday evening through
late wednesday night...

.rest of this afternoon...w winds 5 kt. waves flat. 
.tonight...sw winds around 5 kt. waves flat. 
.wed...sw winds around 5 kt...becoming se in the afternoon. waves
flat...building to 2 ft in the afternoon. 
.wed night...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. 
.thu...s winds 10 to 15 kt. waves 1 ft. a chance of showers. 
.thu night...s winds 10 to 15 kt. waves 1 ft. a chance of showers. 
.fri...sw winds around 5 kt. waves 1 ft or less. a chance of showers
in the morning, then showers likely with a chance of tstms through
the night. a chance of showers after midnight. 
.sat...ne winds around 5 kt. waves 1 ft. a chance of showers.  

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

$$