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fzus51 klwx 220300
cwflwx
expires:202607220800;;384678

coastal waters forecast
national weather service baltimore md/washington dc
1059 pm 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.


anz530-220800-
chesapeake bay north of pooles island-
1059 pm edt tue jul 21 2026

...small craft advisory in effect until 8 am edt wednesday...

.rest of tonight...sw winds 15 to 20 kt with gusts to 25 kt. waves
2 ft. patchy fog late this evening. scattered tstms. numerous
showers late this evening, then scattered showers. vsby 1 nm or
less. 
.wed...w winds 10 to 15 kt with gusts to 20 kt. waves 1 ft. a chance
of showers and tstms. 
.wed night...nw winds 10 to 15 kt. gusts up to 20 kt. waves 1 ft. a
chance of showers. 
.thu...n winds 10 to 15 kt with gusts to 20 kt. waves 1 ft. 
.thu night...ne winds 5 kt. waves flat. 
.fri...e winds 5 to 10 kt. waves 1 ft. 
.fri night...e winds 5 to 10 kt. waves 1 ft or less. 
.sat...e winds around 5 kt. waves 1 ft or less. 
.sun...s winds around 5 kt. waves flat. a chance of showers through
the night.  

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

$$
fzus51 klwx 220300
cwflwx
expires:202607220800;;384679

coastal waters forecast
national weather service baltimore md/washington dc
1059 pm 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.


anz531-220800-
chesapeake bay from pooles island to sandy point-
1059 pm edt tue jul 21 2026

...small craft advisory in effect until 8 am edt wednesday...

.rest of tonight...sw winds 15 to 20 kt with gusts to 25 kt. waves
2 to 3 ft. patchy fog late this evening. scattered tstms. showers.
vsby 1 nm or less. 
.wed...w winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. a chance
of showers and tstms. 
.wed night...nw winds 10 kt...becoming n late. gusts up to 20 kt.
waves 2 ft. a chance of showers. 
.thu...n winds 10 to 15 kt. gusts up to 25 kt in the morning. waves
2 ft. 
.thu night...ne winds 5 to 10 kt. waves 1 ft. 
.fri...e winds 5 to 10 kt. waves 1 ft. 
.fri night...e winds 5 to 10 kt. waves 1 ft. 
.sat...e winds 5 to 10 kt. waves 1 ft. 
.sun...se winds 5 kt...becoming s. waves 1 ft or less. a chance of
showers through the night.  

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

$$
fzus51 klwx 220300
cwflwx
expires:202607220800;;384682

coastal waters forecast
national weather service baltimore md/washington dc
1059 pm 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.


anz532-220800-
chesapeake bay from sandy point to north beach-
1059 pm edt tue jul 21 2026

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

.rest of tonight...sw winds 15 kt with gusts to 25 kt. waves 2 to
3 ft. scattered tstms. showers. patchy fog. vsby 1 nm or less. 
.wed...sw winds 10 to 15 kt with gusts to 25 kt. waves 2 ft. showers
likely. 
.wed night...w winds 10 kt...becoming n with gusts to 25 kt after
midnight. waves 2 ft. a chance of showers. 
.thu...n winds 10 to 15 kt. gusts up to 25 kt in the morning. waves
2 ft. 
.thu night...e winds 5 to 10 kt. waves 1 ft. 
.fri...e winds 10 kt. waves 1 ft. 
.fri night...e winds 5 to 10 kt. waves 1 ft. 
.sat...e winds 5 to 10 kt. waves 1 ft. 
.sun...e winds 5 kt...becoming s. waves 1 ft or less. a chance of
showers through the night.  

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

$$
fzus51 klwx 220300
cwflwx
expires:202607220800;;384684

coastal waters forecast
national weather service baltimore md/washington dc
1059 pm 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.


anz533-220800-
chesapeake bay from north beach to drum point-
1059 pm edt tue jul 21 2026

...severe thunderstorm watch 509 in effect until midnight edt
tonight...
...small craft advisory in effect through wednesday morning...

.rest of tonight...sw winds 15 to 20 kt with gusts to 25 kt. waves
2 to 3 ft. showers and scattered tstms. patchy fog. vsby 1 nm or
less. 
.wed...sw winds 15 to 20 kt...diminishing to 10 kt late. gusts up to
25 kt. waves 2 to 3 ft. showers likely. 
.wed night...w winds 5 to 10 kt...becoming n 10 to 15 kt with gusts
to 25 kt after midnight. waves 2 to 3 ft. a chance of showers and
tstms. 
.thu...n winds 10 to 15 kt with gusts to 25 kt. waves 2 to 3 ft. 
.thu night...e winds 5 to 10 kt. waves 1 ft. 
.fri...e winds 10 kt. waves 2 ft. 
.fri night...e winds 5 to 10 kt. waves 1 ft. 
.sat...e winds 5 to 10 kt. waves 1 ft. 
.sun...e winds 5 kt...becoming s. waves 1 ft or less.  

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

$$
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