fzus51 klwx 210857
cwflwx
expires:202605212300;;392389

coastal waters forecast
national weather service baltimore md/washington dc
457 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.


anz531-212300-
chesapeake bay from pooles island to sandy point-
457 am edt thu may 21 2026

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

.rest of the overnight...n winds 15 kt with gusts to 20 kt. waves
1 ft. a chance of showers. 
.today...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
showers likely. 
.tonight...ne winds 10 kt with gusts to 20 kt. waves 1 to 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.  

$$

fzus51 klwx 210857
cwflwx
expires:202605212300;;392392

coastal waters forecast
national weather service baltimore md/washington dc
457 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.


anz532-212300-
chesapeake bay from sandy point to north beach-
457 am edt thu may 21 2026

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

.rest of the overnight...n winds 10 kt. waves 1 ft. 
.today...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. a
chance of showers. 
.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 210857
cwflwx
expires:202605212300;;392394

coastal waters forecast
national weather service baltimore md/washington dc
457 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.


anz533-212300-
chesapeake bay from north beach to drum point-
457 am edt thu may 21 2026

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

.rest of the overnight...n winds 10 kt. waves 1 ft. 
.today...ne winds 10 to 15 kt with gusts to 20 kt. waves 3 ft. a
chance of showers. 
.tonight...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 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 210857
cwflwx
expires:202605212300;;392397

coastal waters forecast
national weather service baltimore md/washington dc
457 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.


anz534-212300-
chesapeake bay from drum point to smith point-
457 am edt thu may 21 2026

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

.rest of the overnight...n winds 5 kt. waves less than 1 ft. 
.today...ne winds 10 to 15 kt. gusts up to 20 kt. waves 1 to 2 ft. a
chance of showers. 
.tonight...ne winds 15 kt with gusts to 20 kt. waves 2 to 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 210857
cwflwx
expires:202605212300;;392385

coastal waters forecast
national weather service baltimore md/washington dc
457 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.


anz535-212300-
tidal potomac from key bridge to indian head-
457 am edt thu may 21 2026

.rest of the overnight...n winds 5 kt. waves less than 1 ft. a
slight chance of showers. 
.today...ne winds 5 to 10 kt. waves 1 ft. a chance of showers. 
.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.  

$$

fzus51 klwx 210857
cwflwx
expires:202605212300;;392386

coastal waters forecast
national weather service baltimore md/washington dc
457 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.


anz536-212300-
tidal potomac from indian head to cobb island-
457 am edt thu may 21 2026

.rest of the overnight...n winds 5 kt. waves less than 1 ft. 
.today...ne winds 5 to 10 kt with gusts to 20 kt. waves 1 ft. a
chance of showers. 
.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 210857
cwflwx
expires:202605212300;;392387

coastal waters forecast
national weather service baltimore md/washington dc
457 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.


anz537-212300-
tidal potomac from cobb island to smith point-
457 am edt thu may 21 2026

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

.rest of the overnight...n winds 5 kt. waves less than 1 ft. 
.today...ne winds 10 to 15 kt. gusts up to 20 kt. waves 1 to 2 ft. a
chance of showers. 
.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.

$$