fzus51 klwx 210627
cwflwx
expires:202607212000;;332233

coastal waters forecast
national weather service baltimore md/washington dc
227 am edt tue jul 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-
227 am edt tue jul 21 2026

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

.overnight...s winds 15 kt with gusts to 20 kt. waves 2 ft. numerous
showers and scattered tstms. 
.tue...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. showers
and numerous tstms. 
.tue night...sw winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
showers and numerous tstms. 
.wed...sw winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft. a
chance of showers and tstms. 
.wed night...nw winds 10 to 15 kt. gusts up to 20 kt. waves 1 to
2 ft. a chance of showers and tstms. 
.thu...n winds 10 to 15 kt. waves 1 to 2 ft. 
.thu night...ne winds 5 kt. waves less than 1 ft. 
.fri...e winds 5 to 10 kt. waves 1 ft. 
.sat...e winds 5 kt. waves less than 1 ft. a chance of showers
through the night.  

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

$$

fzus51 klwx 210627
cwflwx
expires:202607212000;;332236

coastal waters forecast
national weather service baltimore md/washington dc
227 am edt tue jul 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-
227 am edt tue jul 21 2026

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

.overnight...s winds 15 kt with gusts to 20 kt. waves 2 ft.
scattered showers and tstms. 
.tue...s winds 10 to 15 kt with gusts to 25 kt. waves 2 to 3 ft.
numerous showers and tstms. 
.tue night...sw winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
showers and numerous tstms. 
.wed...sw winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft. a
chance of showers and tstms. 
.wed night...nw winds 10 to 15 kt. gusts up to 20 kt. waves 1 to
2 ft. a chance of showers and tstms. 
.thu...n winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. 
.thu night...ne winds 5 to 10 kt. waves 1 ft. 
.fri...e winds 5 to 10 kt. waves 1 ft. 
.sat...e winds 5 to 10 kt...becoming se after midnight. waves 1 ft.
a chance of showers through the night.  

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

$$

fzus51 klwx 210627
cwflwx
expires:202607212000;;332238

coastal waters forecast
national weather service baltimore md/washington dc
227 am edt tue jul 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-
227 am edt tue jul 21 2026

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

.overnight...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
scattered showers and tstms. 
.tue...s winds 15 to 20 kt with gusts to 25 kt. waves 2 to 3 ft.
numerous showers and tstms. 
.tue night...sw winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
showers and numerous tstms. 
.wed...sw winds 15 to 20 kt with gusts to 25 kt... diminishing to
5 to 10 kt in the afternoon. waves 2 to 3 ft. showers likely with a
chance of tstms. 
.wed night...nw winds 10 to 15 kt. gusts up to 20 kt. waves 1 to
2 ft. showers likely with a chance of tstms. 
.thu...n winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. 
.thu night...ne winds 5 to 10 kt. waves 1 ft. 
.fri...e winds 5 to 10 kt. waves 1 ft. 
.sat...e winds 5 to 10 kt...becoming s after midnight. waves 1 ft.  

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

$$

fzus51 klwx 210627
cwflwx
expires:202607212000;;332241

coastal waters forecast
national weather service baltimore md/washington dc
227 am edt tue jul 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.


anz534-212000-
chesapeake bay from drum point to smith point-
227 am edt tue jul 21 2026

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

.overnight...s winds 10 to 15 kt. waves 2 ft. scattered showers and
tstms. 
.tue...s winds 15 to 20 kt with gusts to 25 kt. waves 2 to 3 ft.
numerous showers and tstms. 
.tue night...sw winds 20 to 25 kt with gusts to 30 kt. waves 4 ft.
showers and numerous tstms. 
.wed...sw winds 20 to 25 kt with gusts to 30 kt. waves 3 ft. showers
with a chance of tstms. 
.wed night...w winds 10 kt...becoming n after midnight. gusts up to
20 kt. waves 2 to 3 ft. showers with a chance of tstms. 
.thu...n winds 10 to 15 kt with gusts to 20 kt. waves 2 to 3 ft. 
.thu night...ne winds 5 to 10 kt. waves 1 ft. 
.fri...e winds 5 to 10 kt. waves 1 ft. a chance of showers after
midnight. 
.sat...e winds 5 to 10 kt...becoming sw after midnight. waves 1 ft.
a chance of showers.  

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

$$

fzus51 klwx 210627
cwflwx
expires:202607212000;;332229

coastal waters forecast
national weather service baltimore md/washington dc
227 am edt tue jul 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.


anz535-212000-
tidal potomac from key bridge to indian head-
227 am edt tue jul 21 2026

...small craft advisory in effect from 2 pm edt this afternoon
through late tonight...

.overnight...s winds 5 kt. waves less than 1 ft. scattered showers
and tstms. 
.tue...s winds 10 to 15 kt. gusts up to 20 kt... increasing to 25 kt
late. waves 1 ft. numerous showers and tstms. 
.tue night...sw winds 10 to 15 kt. gusts up to 25 kt until early
morning. waves 1 ft. numerous showers and tstms. 
.wed...w winds 5 to 10 kt. waves 1 ft. showers likely with a chance
of tstms. 
.wed night...nw winds 5 to 10 kt. waves 1 ft. a chance of showers
and tstms. 
.thu...n winds 5 to 10 kt. waves 1 ft. 
.thu night...ne winds around 5 kt. waves 1 ft or less. 
.fri...e winds around 5 kt. waves 1 ft. 
.sat...se winds around 5 kt. waves 1 ft or less.  

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

$$

fzus51 klwx 210627
cwflwx
expires:202607212000;;332230

coastal waters forecast
national weather service baltimore md/washington dc
227 am edt tue jul 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.


anz536-212000-
tidal potomac from indian head to cobb island-
227 am edt tue jul 21 2026

...small craft advisory in effect from 2 pm edt this afternoon
through late tonight...

.overnight...s winds 10 kt. waves 1 ft. scattered showers and tstms.
.tue...sw winds 10 to 15 kt with gusts to 20 kt. waves 1 ft.
numerous showers and tstms. 
.tue night...sw winds 10 to 15 kt with gusts to 25 kt. waves 1 to
2 ft. showers and numerous tstms. 
.wed...sw winds 10 to 15 kt with gusts to 20 kt. waves 1 ft. showers
with a chance of tstms. 
.wed night...nw winds 5 to 10 kt. waves 1 ft. showers likely with a
chance of tstms. 
.thu...n winds 5 to 10 kt. waves 1 ft. 
.thu night...ne winds around 5 kt. waves 1 ft. 
.fri...e winds around 5 kt. waves 1 ft. 
.sat...se winds around 5 kt. waves 1 ft.  

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

$$

fzus51 klwx 210627
cwflwx
expires:202607212000;;332231

coastal waters forecast
national weather service baltimore md/washington dc
227 am edt tue jul 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.


anz537-212000-
tidal potomac from cobb island to smith point-
227 am edt tue jul 21 2026

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

.overnight...s winds 10 kt. waves 1 to 2 ft. scattered showers and
tstms. 
.tue...sw winds 15 to 20 kt. gusts up to 25 kt. waves 2 ft. numerous
showers and tstms. 
.tue night...sw winds 15 to 20 kt with gusts to 25 kt. waves 2 ft.
showers and numerous tstms. 
.wed...sw winds 15 to 20 kt with gusts to 25 kt. waves 2 ft. showers
with a chance of tstms. 
.wed night...nw winds 10 to 15 kt. gusts up to 20 kt. waves 1 to
2 ft. showers with a chance of tstms. 
.thu...n winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. 
.thu night...ne winds 5 to 10 kt. waves 1 ft. 
.fri...e winds 5 to 10 kt. waves 1 ft. a chance of showers after
midnight. 
.sat...e winds 5 kt. waves less than 1 ft. a chance of showers
through the day.  

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

$$