fzus51 klwx 201500
cwflwx
expires:202604202000;;695208

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt mon apr 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.


anz531-202000-
chesapeake bay from pooles island to sandy point-
1100 am edt mon apr 20 2026

...small craft advisory in effect until 9 pm edt this evening...

.rest of today...nw winds 15 kt with gusts to 25 kt. waves 2 to
3 ft. isolated showers late this morning, then scattered sprinkles
this afternoon. 
.tonight...n winds 10 to 15 kt with gusts to 20 kt... becoming ne
5 to 10 kt late. waves 1 to 2 ft. 
.tue...e winds around 5 kt...becoming s late. waves 1 ft. 
.tue night...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. a
chance of showers. 
.wed...sw winds 5 to 10 kt. waves 1 to 2 ft. a chance of showers. 
.wed night...nw winds around 5 kt. waves 1 ft or less. 
.thu...sw winds around 5 kt. waves flat. 
.fri...e winds 5 to 10 kt. waves 1 ft or less. a chance of showers
through the night.  

$$

fzus51 klwx 201500
cwflwx
expires:202604202000;;695211

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt mon apr 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.


anz532-202000-
chesapeake bay from sandy point to north beach-
1100 am edt mon apr 20 2026

...small craft advisory in effect through late tonight...

.rest of today...nw winds 15 to 20 kt with gusts to 25 kt. waves
2 to 3 ft. isolated showers late this morning, then scattered
sprinkles this afternoon. 
.tonight...n winds 10 to 15 kt with gusts to 20 kt... becoming ne
5 to 10 kt late. waves 1 to 2 ft. 
.tue...ne winds 5 to 10 kt...becoming se in the afternoon. waves
1 ft. 
.tue night...s winds 15 to 20 kt. waves 2 to 3 ft. a chance of
showers. 
.wed...sw winds 10 to 15 kt. gusts up to 20 kt in the morning. waves
1 to 2 ft. showers likely. 
.wed night...nw winds 5 kt. waves less than 1 ft. 
.thu...e winds around 5 kt. waves 1 ft or less. 
.fri...ne winds 5 kt...becoming se. waves 1 ft or less. a chance of
showers through the night.  

$$

fzus51 klwx 201500
cwflwx
expires:202604202000;;695213

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt mon apr 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.


anz533-202000-
chesapeake bay from north beach to drum point-
1100 am edt mon apr 20 2026

...small craft advisory in effect through late tonight...

.rest of today...nw winds 15 to 20 kt with gusts to 25 kt. waves
2 to 3 ft. scattered showers late this morning, then scattered
sprinkles this afternoon. 
.tonight...n winds 10 to 15 kt with gusts to 20 kt. waves 2 to 3 ft.
.tue...ne winds 5 to 10 kt...becoming s late. waves 1 ft. 
.tue night...s winds 15 to 20 kt. waves 2 to 3 ft. 
.wed...sw winds 10 to 15 kt. gusts up to 20 kt in the morning. waves
1 to 2 ft. a chance of showers. 
.wed night...nw winds around 5 kt. waves 1 ft. 
.thu...n winds around 5 kt. waves 1 ft or less. 
.fri...ne winds 5 kt...becoming se. waves 1 ft or less. a chance of
showers through the night.  

$$

fzus51 klwx 201500
cwflwx
expires:202604202000;;695216

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt mon apr 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.


anz534-202000-
chesapeake bay from drum point to smith point-
1100 am edt mon apr 20 2026

...small craft advisory in effect through late tonight...

.rest of today...nw winds 15 to 20 kt with gusts to 25 kt. waves
2 to 3 ft...building to 4 ft late. scattered sprinkles. 
.tonight...n winds 15 to 20 kt. gusts up to 25 kt until early
morning. waves 2 to 3 ft. 
.tue...ne winds 5 to 10 kt...becoming se late. waves 1 to 2 ft. 
.tue night...s winds 15 to 20 kt with gusts to 25 kt. waves 2 to
3 ft. 
.wed...sw winds 15 to 20 kt with gusts to 25 kt... becoming w 5 to
10 kt in the afternoon. waves 2 to 3 ft. a chance of showers. 
.wed night...nw winds 5 kt. waves less than 1 ft. 
.thu...n winds 5 to 10 kt...becoming s. waves 1 ft. 
.fri...ne winds 5 kt...becoming se 10 to 15 kt. waves 1 to 2 ft. a
chance of showers through the night.  

$$

fzus51 klwx 201500
cwflwx
expires:202604202000;;695204

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt mon apr 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.


anz535-202000-
tidal potomac from key bridge to indian head-
1100 am edt mon apr 20 2026

...small craft advisory in effect until 9 pm edt this evening...

.rest of today...nw winds 15 kt with gusts to 30 kt. waves 1 ft.
scattered showers late this morning, then scattered sprinkles this
afternoon. 
.tonight...nw winds 10 to 15 kt with gusts to 20 kt... becoming n
around 5 kt in the late evening and overnight. waves 1 ft. 
.tue...s winds around 5 kt. waves 1 ft or less. 
.tue night...s winds 5 to 10 kt. waves 1 ft. 
.wed...sw winds 5 kt. waves less than 1 ft. showers likely. 
.wed night...nw winds around 5 kt. waves 1 ft. 
.thu...nw winds around 5 kt. waves 1 ft. 
.fri...ne winds around 5 kt. waves 1 ft. a chance of showers through
the night.  

$$

fzus51 klwx 201500
cwflwx
expires:202604202000;;695205

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt mon apr 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.


anz536-202000-
tidal potomac from indian head to cobb island-
1100 am edt mon apr 20 2026

...small craft advisory in effect until 9 pm edt this evening...

.rest of today...nw winds 15 kt with gusts to 25 kt. waves 1 to
2 ft. scattered sprinkles. 
.tonight...n winds 10 to 15 kt with gusts to 20 kt... diminishing to
5 kt after midnight. waves 1 ft. 
.tue...w winds around 5 kt. waves 1 ft. 
.tue night...s winds 5 to 10 kt. waves 1 ft. 
.wed...w winds 5 to 10 kt. waves 1 ft. showers likely. 
.wed night...nw winds around 5 kt. waves 1 ft. 
.thu...n winds around 5 kt. waves 1 ft or less. 
.fri...ne winds around 5 kt. waves 1 ft. a chance of showers through
the night.  

$$

fzus51 klwx 201500
cwflwx
expires:202604202000;;695206

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt mon apr 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.


anz537-202000-
tidal potomac from cobb island to smith point-
1100 am edt mon apr 20 2026

...small craft advisory in effect through late tonight...

.rest of today...nw winds 15 kt with gusts to 25 kt. waves 1 ft...
building to 3 ft this afternoon. scattered sprinkles. 
.tonight...n winds 10 to 15 kt with gusts to 20 kt. waves 2 to 3 ft.
.tue...ne winds 5 to 10 kt...becoming se late. waves 1 ft. 
.tue night...s winds 10 to 15 kt with gusts to 20 kt. waves 1 to
2 ft. 
.wed...sw winds 10 to 15 kt...becoming w 5 to 10 kt in the
afternoon. gusts up to 20 kt. waves 1 to 2 ft. a chance of showers. 
.wed night...nw winds around 5 kt. waves 1 ft or less. 
.thu...ne winds 5 kt. waves less than 1 ft. 
.fri...n winds around 5 kt...becoming se. waves 1 ft or less. a
chance of showers through the night.  

$$