fzus51 klwx 201827
cwflwx
expires:202609210800;;775967

coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt sun sep 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-
227 pm edt sun sep 20 2026

...small craft advisory in effect monday morning...

.this afternoon...s winds 10 kt. waves 2 ft. numerous showers. 
.tonight...w winds 5 to 10 kt...becoming n 10 to 15 kt with gusts to
20 kt after midnight. waves 1 to 2 ft. scattered showers. 
.mon...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. 
.mon night...e winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
widespread showers. 
.tue...ne winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
showers.
.tue night...ne winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
showers likely. 
.wed...ne winds 20 to 25 kt. waves 3 ft. a chance of showers. 
.thu...ne winds 20 to 25 kt. waves 3 ft.  

$$

fzus51 klwx 201827
cwflwx
expires:202609210800;;775970

coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt sun sep 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-
227 pm edt sun sep 20 2026

...small craft advisory in effect monday morning...

.this afternoon...s winds 10 kt. waves 2 ft. numerous showers. 
.tonight...sw winds 5 to 10 kt...becoming n 10 to 15 kt after
midnight. waves 2 ft. scattered showers. 
.mon...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. 
.mon night...e winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
widespread showers. 
.tue...ne winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
showers.
.tue night...ne winds 20 kt with gusts to 25 kt. waves 3 ft. showers
likely. 
.wed...ne winds 20 to 25 kt. waves 3 ft. showers likely, mainly in
the morning. 
.thu...ne winds 20 to 25 kt. waves 3 ft. a chance of showers in the
morning.  

$$

fzus51 klwx 201827
cwflwx
expires:202609210800;;775972

coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt sun sep 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-
227 pm edt sun sep 20 2026

...small craft advisory in effect monday morning...

.this afternoon...s winds 10 to 15 kt. waves 2 ft. numerous showers.
.tonight...sw winds 5 to 10 kt...becoming n 10 to 15 kt after
midnight. waves 2 ft. scattered showers. 
.mon...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. 
.mon night...e winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
widespread showers. 
.tue...ne winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
showers.
.tue night...ne winds 20 kt with gusts to 30 kt. waves 4 ft. showers
likely. 
.wed...ne winds 20 kt...increasing to 25 to 30 kt. waves 4 ft.
showers likely, mainly in the morning. 
.thu...ne winds 20 to 25 kt. waves 4 ft. a chance of showers in the
morning.  

$$

fzus51 klwx 201827
cwflwx
expires:202609210800;;775975

coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt sun sep 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-
227 pm edt sun sep 20 2026

...small craft advisory in effect monday morning...

.this afternoon...s winds 15 kt with gusts to 20 kt. waves 2 ft.
numerous showers with isolated tstms. 
.tonight...s winds 10 to 15 kt...becoming nw 5 to 10 kt after
midnight. waves 2 ft. scattered showers. 
.mon...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. 
.mon night...e winds 10 to 15 kt with gusts to 20 kt. waves 3 ft.
numerous showers. 
.tue...e winds 15 to 20 kt. gusts up to 20 kt... increasing to 30 kt
in the afternoon. waves 2 ft...building to 4 ft in the afternoon.
showers with a chance of tstms. 
.tue night...ne winds 20 to 25 kt with gusts to 30 kt. waves 5 ft.
showers likely. 
.wed...ne winds 25 to 30 kt. waves 5 ft. showers likely through the
day, then a chance of showers through the night. 
.thu...ne winds 20 to 25 kt. waves 4 ft. a chance of showers.  

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

$$

fzus51 klwx 201827
cwflwx
expires:202609210800;;775963

coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt sun sep 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-
227 pm edt sun sep 20 2026

.this afternoon...sw winds 10 kt. waves 1 ft. numerous showers. 
.tonight...nw winds 5 kt. waves less than 1 ft. scattered showers. 
.mon...ne winds 10 kt. waves 1 ft. 
.mon night...e winds 10 kt. waves 1 ft. widespread showers.
.tue...ne winds 10 to 15 kt. waves 1 ft. showers.
.tue night...ne winds 10 to 15 kt. waves 1 ft. showers likely. 
.wed...ne winds 10 to 15 kt. waves 1 ft. showers likely, mainly in
the morning. 
.thu...ne winds 10 to 15 kt. waves 1 ft. a chance of showers through
the day.  

$$

fzus51 klwx 201827
cwflwx
expires:202609210800;;775964

coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt sun sep 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-
227 pm edt sun sep 20 2026

.this afternoon...sw winds 10 kt. waves 1 ft. numerous showers. 
.tonight...w winds 5 kt...becoming n late. waves 1 ft. scattered
showers. 
.mon...ne winds 10 kt. waves 1 ft. 
.mon night...e winds 10 kt. waves 1 ft. widespread showers.
.tue...ne winds 10 to 15 kt with gusts to 20 kt. waves 1 ft. showers
with a chance of tstms. 
.tue night...ne winds 10 to 15 kt with gusts to 20 kt. waves 1 ft.
showers likely. 
.wed...ne winds 15 to 20 kt. waves 1 to 2 ft. showers likely through
the day, then a chance of showers through the night. 
.thu...n winds 10 to 15 kt. waves 1 to 2 ft. a chance of showers
through the day.  

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

$$

fzus51 klwx 201827
cwflwx
expires:202609210800;;775965

coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt sun sep 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-
227 pm edt sun sep 20 2026

.this afternoon...s winds 10 kt. waves 1 ft. numerous showers with
isolated tstms. 
.tonight...sw winds 5 to 10 kt...becoming n late. waves 1 ft.
scattered showers. 
.mon...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. 
.mon night...e winds 10 to 15 kt with gusts to 20 kt. waves 3 ft.
numerous showers. 
.tue...ne winds 15 to 20 kt. gusts up to 25 kt in the afternoon.
waves 2 to 3 ft. showers with a chance of tstms. 
.tue night...ne winds 15 to 20 kt with gusts to 30 kt. waves 4 ft.
showers likely. 
.wed...ne winds 20 to 25 kt. waves 4 ft. showers likely through the
day, then a chance of showers through the night. 
.thu...ne winds 20 to 25 kt. waves 4 ft. a chance of showers.  

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

$$