fzus51 klwx 211158
cwflwx
expires:202605212000;;399094

coastal waters forecast
national weather service baltimore md/washington dc
757 am edt thu may 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-
758 am edt thu may 21 2026

...small craft advisory in effect until 6 pm edt this evening...

.today...ne winds 15 kt with gusts to 20 kt. waves 2 ft. a slight
chance of tstms. a chance of showers this morning, then showers
likely this afternoon. 
.tonight...ne winds 10 kt with gusts to 20 kt. waves 2 ft. showers
likely. 
.fri...e winds 10 to 15 kt with gusts to 25 kt. waves 2 ft. showers.
.fri night...e winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
showers.
.sat...e winds 15 kt with gusts to 25 kt. waves 2 ft. showers.
.sat night...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
showers.
.sun...ne winds 5 to 10 kt. waves 1 ft or less. showers likely in
the morning, then a chance of showers in the afternoon. a chance of
showers after midnight. 
.mon...se 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 211158
cwflwx
expires:202605212000;;399097

coastal waters forecast
national weather service baltimore md/washington dc
757 am edt thu may 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-
758 am edt thu may 21 2026

...small craft advisory in effect until 6 pm edt this evening...

.today...ne winds 15 kt with gusts to 20 kt. waves 2 ft. a slight
chance of showers this morning, then a chance of showers with a
slight chance of tstms this afternoon. 
.tonight...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. a
chance of showers. 
.fri...e winds 15 kt with gusts to 25 kt. waves 2 ft. showers.
.fri night...e winds 10 to 15 kt with gusts to 25 kt. waves 2 ft.
showers.
.sat...e winds 15 kt with gusts to 20 kt. waves 2 ft. showers.
.sat night...ne winds 10 to 15 kt with gusts to 20 kt. waves 1 to
2 ft. showers with a chance of tstms. 
.sun...ne winds 5 kt. waves less than 1 ft. 
.mon...se winds around 5 kt. waves 1 ft or less. a chance of showers
in the morning, then showers likely through the night. a chance of
showers after midnight.  

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

$$

fzus51 klwx 211158
cwflwx
expires:202605212000;;399099

coastal waters forecast
national weather service baltimore md/washington dc
757 am edt thu may 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-
758 am edt thu may 21 2026

...small craft advisory in effect until 6 pm edt this evening...

.today...ne winds 15 kt with gusts to 20 kt. waves 2 to 3 ft. a
slight chance of showers this morning, then a chance of showers with
a slight chance of tstms this afternoon. 
.tonight...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 to
3 ft. showers likely. 
.fri...ne winds 15 kt with gusts to 25 kt. waves 3 ft. showers.
.fri night...e winds 10 to 15 kt with gusts to 25 kt. waves 2 to
3 ft. showers.
.sat...e winds 10 to 15 kt with gusts to 20 kt. waves 3 ft. showers.
.sat night...ne winds 10 to 15 kt. gusts up to 20 kt in the evening.
waves 1 to 2 ft. showers with a chance of tstms. 
.sun...ne winds 5 kt. waves less than 1 ft. showers, mainly in the
morning. 
.mon...s winds around 5 kt. waves 1 ft or less. a chance of showers
in the morning. showers likely.  

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

$$

fzus51 klwx 211158
cwflwx
expires:202605212000;;399102

coastal waters forecast
national weather service baltimore md/washington dc
757 am edt thu may 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-
758 am edt thu may 21 2026

...small craft advisory in effect through late tonight...

.today...ne winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft.
a slight chance of showers this morning, then a chance of showers
this afternoon. 
.tonight...ne winds 15 kt with gusts to 20 kt. waves 3 ft. showers
likely. 
.fri...ne winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
showers.
.fri night...ne winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
showers.
.sat...e winds 10 to 15 kt with gusts to 20 kt. waves 3 ft. showers.
.sat night...e winds 10 to 15 kt. gusts up to 20 kt in the evening.
waves 1 to 2 ft. showers with a chance of tstms. 
.sun...n winds 5 kt...becoming e after midnight. waves 1 ft.
showers, mainly in the morning. 
.mon...se winds 5 to 10 kt...becoming w after midnight. waves 1 ft.
a chance of showers in the morning, then showers likely.  

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

$$

fzus51 klwx 211158
cwflwx
expires:202605212000;;399090

coastal waters forecast
national weather service baltimore md/washington dc
757 am edt thu may 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-
758 am edt thu may 21 2026

.today...ne winds 10 kt. waves 1 ft. a chance of showers this
morning, then a chance of showers with a slight chance of tstms this
afternoon. 
.tonight...ne winds 5 to 10 kt. waves 1 ft. a chance of showers. 
.fri...ne winds 5 to 10 kt. waves 1 ft. showers.
.fri night...ne winds 5 to 10 kt. waves 1 ft. showers.
.sat...ne winds 5 to 10 kt with gusts to 20 kt. waves 1 ft. showers.
.sat night...ne winds 5 to 10 kt. waves 1 ft. showers.
.sun...e winds around 5 kt. waves 1 ft. a chance of showers. 
.mon...s winds around 5 kt. waves 1 ft or less. a chance of showers
in the morning, then showers likely through the night. a chance of
showers after midnight.  

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

$$

fzus51 klwx 211158
cwflwx
expires:202605212000;;399091

coastal waters forecast
national weather service baltimore md/washington dc
757 am edt thu may 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-
758 am edt thu may 21 2026

.today...ne winds 10 kt with gusts to 20 kt. waves 1 ft. a slight
chance of showers this morning, then a chance of showers with a
slight chance of tstms this afternoon. 
.tonight...ne winds 5 to 10 kt with gusts to 20 kt. waves 1 ft.
showers likely. 
.fri...ne winds 10 kt with gusts to 20 kt. waves 1 ft. showers.
.fri night...ne winds 5 to 10 kt with gusts to 20 kt. waves 1 ft.
showers.
.sat...ne winds 5 to 10 kt. waves 1 ft. showers.
.sat night...ne winds 5 to 10 kt. waves 1 ft. showers with a chance
of tstms. 
.sun...ne winds around 5 kt. waves 1 ft. a chance of showers. 
.mon...s winds around 5 kt. waves 1 ft or less. a chance of showers
in the morning, then a chance of tstms through the night. showers
likely.  

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

$$

fzus51 klwx 211158
cwflwx
expires:202605212000;;399092

coastal waters forecast
national weather service baltimore md/washington dc
757 am edt thu may 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-
758 am edt thu may 21 2026

...small craft advisory in effect through late tonight...

.today...ne winds 5 to 10 kt...increasing to 15 kt late. gusts up to
20 kt. waves 1 to 2 ft. a slight chance of showers this morning,
then a chance of showers this afternoon. 
.tonight...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
showers likely. 
.fri...ne winds 10 to 15 kt with gusts to 25 kt. waves 3 ft.
showers.
.fri night...ne winds 10 to 15 kt with gusts to 25 kt. waves 3 ft.
showers.
.sat...e winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. showers.
.sat night...ne winds 5 to 10 kt. waves 1 to 2 ft. showers with a
chance of tstms. 
.sun...ne winds around 5 kt. waves 1 ft or less. showers, mainly in
the morning. 
.mon...s winds around 5 kt. waves 1 ft or less. a chance of showers
in the morning, then a chance of tstms through the night. showers
likely.  

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

$$