fzus51 klwx 202058
cwflwx
expires:202608210800;;069648

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.


anz530-210800-
chesapeake bay north of pooles 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
2 ft. showers with tstms likely. 
.tonight...n winds 5 to 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 kt. waves less than 1 ft. numerous showers. 
.sat...e winds 5 kt. waves less than 1 ft. showers with a chance of
tstms. 
.sat night...se winds around 5 kt. waves 1 ft or less. 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;;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.

$$