fzus51 klwx 202058
cwflwx
expires:202608210800;;069649

coastal waters forecast
national weather service baltimore md/washington dc
458 pm edt thu aug 20 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.


anz531-210800-
chesapeake bay from pooles island to sandy point-
458 pm edt thu aug 20 2026

...small craft advisory in effect until 8 pm edt this evening...
...tornado watch 605 in effect until 10 pm edt this evening...

.rest of this afternoon...sw winds 10 kt with gusts to 20 kt. waves
1 ft. showers with tstms likely. 
.tonight...n winds 10 kt with gusts to 20 kt. waves 1 ft. showers
with tstms likely. 
.fri...ne winds 5 to 10 kt. waves 1 ft. 
.fri night...e winds 5 to 10 kt. waves 1 ft. numerous showers. 
.sat...e winds 5 to 10 kt. waves 1 ft. showers with a chance of
tstms. 
.sat night...s winds around 5 kt. waves 1 ft or less. a chance of
showers and tstms. 
.sun...nw winds 5 to 10 kt. waves 1 ft. a chance of showers through
the night. 
.mon...nw winds 5 to 10 kt. waves 1 ft.  

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

$$

fzus51 klwx 202058
cwflwx
expires:202608210800;;069652

coastal waters forecast
national weather service baltimore md/washington dc
458 pm edt thu aug 20 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.


anz532-210800-
chesapeake bay from sandy point to north beach-
458 pm edt thu aug 20 2026

...small craft advisory in effect until 8 pm edt this evening...
...tornado watch 605 in effect until 10 pm edt this evening...

.rest of this afternoon...s winds 10 kt with gusts to 20 kt. waves
2 ft. showers likely with a chance of tstms.
.tonight...n winds 10 kt. waves 1 ft. a chance of showers and tstms.
.fri...ne winds 5 to 10 kt. waves 1 ft. 
.fri night...e winds 5 to 10 kt. waves 1 ft. numerous showers. 
.sat...se winds 5 to 10 kt. waves 1 ft. showers with a chance of
tstms. 
.sat night...sw winds 5 kt. waves less than 1 ft. a chance of
showers and tstms. 
.sun...w winds 5 to 10 kt. waves 1 ft. a chance of showers through
the night. 
.mon...w winds 5 to 10 kt. waves 1 ft.  

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

$$

fzus51 klwx 202058
cwflwx
expires:202608210800;;069654

coastal waters forecast
national weather service baltimore md/washington dc
458 pm edt thu aug 20 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.


anz533-210800-
chesapeake bay from north beach to drum point-
458 pm edt thu aug 20 2026

...small craft advisory in effect until 8 pm edt this evening...
...tornado watch 605 in effect until 10 pm edt this evening...

.rest of this afternoon...s winds 10 kt with gusts to 20 kt. waves
2 ft. showers likely with a chance of tstms.
.tonight...n winds 5 to 10 kt. gusts up to 20 kt in the evening.
waves 1 to 2 ft. showers likely with a chance of tstms. 
.fri...ne winds 5 to 10 kt. waves 1 ft. 
.fri night...e winds 5 to 10 kt. waves 1 ft. widespread showers. 
.sat...se winds 5 kt. waves less than 1 ft. showers with a chance of
tstms. 
.sat night...sw winds 5 kt. waves less than 1 ft. a chance of
showers and tstms. 
.sun...w winds 5 to 10 kt. waves 1 ft. a chance of showers through
the night. 
.mon...w winds 5 to 10 kt. waves 1 ft.  

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

$$

fzus51 klwx 202058
cwflwx
expires:202608210800;;069657

coastal waters forecast
national weather service baltimore md/washington dc
458 pm edt thu aug 20 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.


anz534-210800-
chesapeake bay from drum point to smith point-
458 pm edt thu aug 20 2026

...small craft advisory in effect until 8 pm edt this evening...
...tornado watch 605 in effect until 10 pm edt this evening...

.rest of this afternoon...s winds 15 kt with gusts to 20 kt. waves
2 ft. showers likely with a chance of tstms.
.tonight...s winds 10 to 15 kt with gusts to 20 kt... becoming n in
the late evening and overnight. waves 1 to 2 ft. showers with a
chance of tstms. 
.fri...n winds 5 to 10 kt. waves 1 ft. 
.fri night...se winds 5 to 10 kt. waves 1 ft. widespread showers. 
.sat...s winds 5 to 10 kt. waves 1 ft. showers with a chance of
tstms. 
.sat night...sw winds 5 to 10 kt. waves 1 ft. a chance of showers
and tstms. 
.sun...w winds 5 to 10 kt. waves 1 to 2 ft. a chance of showers
through the night. 
.mon...nw winds 5 to 10 kt...becoming w. waves 1 to 2 ft.  

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

$$

fzus51 klwx 202058
cwflwx
expires:202608210800;;069645

coastal waters forecast
national weather service baltimore md/washington dc
458 pm edt thu aug 20 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.


anz535-210800-
tidal potomac from key bridge to indian head-
458 pm edt thu aug 20 2026

...small craft advisory in effect until 8 pm edt this evening...
...tornado watch 605 in effect until 10 pm edt this evening...

.rest of this afternoon...w winds 10 kt with gusts to 20 kt. waves
1 ft. showers likely with a chance of tstms.
.tonight...n winds 5 to 10 kt. gusts up to 20 kt early in the
evening. waves 1 ft. showers likely with a chance of tstms. 
.fri...ne winds 5 kt. waves less than 1 ft. 
.fri night...e winds around 5 kt. waves 1 ft. numerous showers. 
.sat...se winds around 5 kt. waves 1 ft. showers likely. 
.sat night...sw winds around 5 kt. waves 1 ft or less. a chance of
showers and tstms. 
.sun...nw winds around 5 kt. waves 1 ft. 
.mon...nw winds 5 to 10 kt. waves 1 ft.  

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

$$

fzus51 klwx 202058
cwflwx
expires:202608210800;;069646

coastal waters forecast
national weather service baltimore md/washington dc
458 pm edt thu aug 20 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.


anz536-210800-
tidal potomac from indian head to cobb island-
458 pm edt thu aug 20 2026

...small craft advisory in effect until 8 pm edt this evening...
...tornado watch 605 in effect until 10 pm edt this evening...

.rest of this afternoon...sw winds 10 kt with gusts to 20 kt. waves
1 ft. showers likely with a chance of tstms.
.tonight...n winds 5 to 10 kt. waves 1 ft. a chance of showers and
tstms. 
.fri...ne winds around 5 kt. waves 1 ft. 
.fri night...e winds around 5 kt. waves 1 ft. numerous showers. 
.sat...s winds around 5 kt. waves 1 ft. showers likely. 
.sat night...sw winds around 5 kt. waves 1 ft or less. 
.sun...nw winds around 5 kt. waves 1 ft. 
.mon...w winds around 5 kt. waves 1 ft.  

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

$$

fzus51 klwx 202058
cwflwx
expires:202608210800;;069647

coastal waters forecast
national weather service baltimore md/washington dc
458 pm edt thu aug 20 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.


anz537-210800-
tidal potomac from cobb island to smith point-
458 pm edt thu aug 20 2026

...small craft advisory in effect until 8 pm edt this evening...
...tornado watch 605 in effect until 10 pm edt this evening...

.rest of this afternoon...s winds 10 kt with gusts to 20 kt. waves
2 ft. showers likely with a chance of tstms.
.tonight...s winds 5 to 10 kt with gusts to 20 kt... becoming n in
the late evening and overnight. waves 1 to 2 ft. showers likely with
a chance of tstms. 
.fri...ne winds 5 to 10 kt. waves 1 ft. 
.fri night...se winds 5 kt. waves less than 1 ft. widespread
showers. 
.sat...s winds 5 kt. waves less than 1 ft. showers with a chance of
tstms. 
.sat night...sw winds 5 kt. waves flat. 
.sun...nw winds 5 to 10 kt. waves 1 ft or less. a chance of showers
through the night. 
.mon...nw winds 5 to 10 kt...becoming sw. waves 1 ft.  

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

$$