fzus51 klwx 210257
cwflwx
expires:202608210800;;083834

coastal waters forecast
national weather service baltimore md/washington dc
1057 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-
1057 pm edt thu aug 20 2026

...small craft advisory in effect until midnight edt tonight...

.rest of tonight...n winds 10 to 15 kt with gusts to 20 kt. waves
2 ft. 
.fri...ne winds 5 to 10 kt. waves 1 to 2 ft. 
.fri night...e winds 5 to 10 kt. waves 1 ft. showers likely. 
.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...w winds 5 to 10 kt. waves 1 ft. a chance of showers.
.sun night...nw winds 5 to 10 kt. waves 1 ft. 
.mon...nw winds 5 to 10 kt. waves 1 ft. 
.tue...nw winds 5 to 10 kt...becoming e. waves 1 ft or less.  

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

$$

fzus51 klwx 210257
cwflwx
expires:202608210800;;083837

coastal waters forecast
national weather service baltimore md/washington dc
1057 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-
1057 pm edt thu aug 20 2026

...small craft advisory in effect until midnight edt tonight...

.rest of tonight...n winds 15 kt. waves 1 to 2 ft. a slight chance
of showers and tstms late this evening. 
.fri...ne winds 5 to 10 kt. waves 1 to 2 ft. 
.fri night...e winds 5 to 10 kt. waves 1 ft. showers likely. 
.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.
.sun night...nw winds 5 to 10 kt. waves 1 ft. 
.mon...w winds 5 to 10 kt. waves 1 ft. 
.tue...n winds 5 to 10 kt...becoming se. waves 1 ft.  

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

$$

fzus51 klwx 210257
cwflwx
expires:202608210800;;083839

coastal waters forecast
national weather service baltimore md/washington dc
1057 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-
1057 pm edt thu aug 20 2026

...small craft advisory in effect until midnight edt tonight...

.rest of tonight...n winds 15 kt. waves 1 to 2 ft. a slight chance
of showers and tstms late this evening. 
.fri...n winds 10 to 15 kt...becoming ne 5 kt late. waves 1 to 2 ft.
.fri night...e winds 5 to 10 kt. waves 1 ft. 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 kt. waves less than 1 ft. a chance of showers. 
.sun night...nw winds 5 to 10 kt. waves 1 ft. 
.mon...w winds 5 to 10 kt. waves 1 ft. 
.tue...n winds 5 to 10 kt...becoming se. waves 1 ft.  

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

$$

fzus51 klwx 210257
cwflwx
expires:202608210800;;083842

coastal waters forecast
national weather service baltimore md/washington dc
1057 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-
1057 pm edt thu aug 20 2026

...small craft advisory in effect until midnight edt tonight...

.rest of tonight...n winds 10 to 15 kt. waves 2 ft. showers with a
chance of tstms late this evening. 
.fri...n winds 10 to 15 kt...diminishing to 5 kt late. waves 1 to
2 ft. 
.fri night...e winds 5 to 10 kt. waves 1 ft. showers with a chance
of tstms. 
.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 kt. waves less than 1 ft. a chance of showers. 
.sun night...nw winds 5 to 10 kt. waves 1 to 2 ft. 
.mon...nw winds 5 to 10 kt...becoming w. waves 1 to 2 ft. 
.tue...nw winds 5 to 10 kt...becoming se. waves 1 ft.  

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

$$

fzus51 klwx 210257
cwflwx
expires:202608210800;;083830

coastal waters forecast
national weather service baltimore md/washington dc
1057 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-
1057 pm edt thu aug 20 2026

...small craft advisory in effect until midnight edt tonight...

.rest of tonight...n winds 5 kt. waves less than 1 ft. 
.fri...ne winds 5 kt. waves less than 1 ft. 
.fri night...e winds around 5 kt. waves 1 ft. showers likely with a
chance of tstms. 
.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...w winds around 5 kt. waves 1 ft. 
.sun night...nw winds 5 kt. waves less than 1 ft. 
.mon...nw winds 5 to 10 kt. waves 1 ft. 
.tue...sw winds around 5 kt. waves 1 ft.  

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

$$

fzus51 klwx 210257
cwflwx
expires:202608210800;;083831

coastal waters forecast
national weather service baltimore md/washington dc
1057 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-
1057 pm edt thu aug 20 2026

...small craft advisory in effect until midnight edt tonight...

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

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

$$

fzus51 klwx 210257
cwflwx
expires:202608210800;;083832

coastal waters forecast
national weather service baltimore md/washington dc
1057 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-
1057 pm edt thu aug 20 2026

...small craft advisory in effect until midnight edt tonight...

.rest of tonight...n winds 10 kt. waves 1 ft. a chance of showers
and tstms late this evening. 
.fri...n winds 5 to 10 kt. waves 1 ft. 
.fri night...se winds 5 kt. waves less than 1 ft. showers with a
chance of tstms. 
.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...w winds 5 kt. waves less than 1 ft. a chance of showers. 
.sun night...nw winds 5 to 10 kt. waves 1 ft. 
.mon...nw winds 5 to 10 kt...becoming sw. waves 1 ft. 
.tue...ne winds 5 kt. waves less than 1 ft.  

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

$$