fzus51 klwx 301500
cwflwx
expires:202604302000;;786283

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt thu apr 30 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.


anz531-302000-
chesapeake bay from pooles island to sandy point-
1100 am edt thu apr 30 2026

...small craft advisory in effect until 7 pm edt this evening...

.rest of today...nw winds 10 to 15 kt with gusts to 20 kt. waves
1 to 2 ft. 
.tonight...nw winds 10 to 15 kt. gusts up to 20 kt. waves 2 ft. 
.fri...w winds 5 kt. waves less than 1 ft. 
.fri night...w winds 5 kt. waves less than 1 ft. a chance of
showers. 
.sat...n winds 5 kt. waves less than 1 ft. a chance of rain. 
.sat night...nw winds 10 to 15 kt. waves 1 ft. a chance of rain. 
.sun...nw winds 10 to 15 kt...becoming sw 5 kt after midnight. waves
1 to 2 ft. 
.mon...s winds 10 to 15 kt. waves 2 ft.  

$$

fzus51 klwx 301500
cwflwx
expires:202604302000;;786286

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt thu apr 30 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.


anz532-302000-
chesapeake bay from sandy point to north beach-
1100 am edt thu apr 30 2026

...small craft advisory in effect until 7 pm edt this evening...

.rest of today...nw winds 10 to 15 kt with gusts to 20 kt. waves
1 to 2 ft. 
.tonight...nw winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. 
.fri...nw winds 5 to 10 kt...becoming s in the afternoon. waves
1 ft. 
.fri night...sw winds 5 to 10 kt...becoming nw after midnight. waves
1 ft. a chance of showers. 
.sat...n winds 5 kt. waves less than 1 ft. a chance of rain. 
.sat night...nw winds 10 to 15 kt. waves 1 ft. a chance of rain. 
.sun...nw winds 10 to 15 kt...becoming sw 5 to 10 kt after midnight.
waves 1 to 2 ft. 
.mon...s winds 10 to 15 kt. waves 2 ft.  

$$

fzus51 klwx 301500
cwflwx
expires:202604302000;;786288

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt thu apr 30 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.


anz533-302000-
chesapeake bay from north beach to drum point-
1100 am edt thu apr 30 2026

...small craft advisory in effect until 7 pm edt this evening...

.rest of today...nw winds 10 to 15 kt with gusts to 20 kt. waves
2 ft. 
.tonight...nw winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. 
.fri...nw winds 5 to 10 kt...becoming s in the afternoon. waves
1 ft. 
.fri night...s winds 5 to 10 kt...becoming nw after midnight. waves
1 ft. a chance of showers. 
.sat...n winds 5 to 10 kt. waves 1 ft. a chance of rain.
.sat night...nw winds 10 to 15 kt. gusts up to 20 kt after midnight.
waves 1 to 2 ft. a chance of rain. 
.sun...nw winds 10 to 15 kt...becoming sw 5 to 10 kt after midnight.
waves 1 to 2 ft. 
.mon...s winds 15 to 20 kt. waves 2 ft.  

$$

fzus51 klwx 301500
cwflwx
expires:202604302000;;786291

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt thu apr 30 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.


anz534-302000-
chesapeake bay from drum point to smith point-
1100 am edt thu apr 30 2026

...small craft advisory in effect until 7 pm edt this evening...

.rest of today...nw winds 15 kt with gusts to 20 kt. waves 2 ft. 
.tonight...nw winds 15 to 20 kt with gusts to 25 kt. waves 3 ft. 
.fri...nw winds 5 to 10 kt...becoming s late. waves 1 to 2 ft. 
.fri night...s winds 5 to 10 kt...becoming nw after midnight. waves
1 ft. a chance of showers. 
.sat...n winds 5 to 10 kt. waves 1 ft. rain likely. 
.sat night...n winds 5 to 10 kt...becoming nw 15 to 20 kt after
midnight. waves 1 to 2 ft. a chance of rain. 
.sun...nw winds 15 to 20 kt...becoming sw 5 to 10 kt. waves 3 ft...
subsiding to 1 ft. 
.mon...s winds 15 to 20 kt. waves 2 to 3 ft.  

$$

fzus51 klwx 301500
cwflwx
expires:202604302000;;786279

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt thu apr 30 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.


anz535-302000-
tidal potomac from key bridge to indian head-
1100 am edt thu apr 30 2026

...small craft advisory in effect until 7 pm edt this evening...

.rest of today...nw winds 10 kt with gusts to 25 kt. waves 1 ft. 
.tonight...nw winds 5 to 10 kt. gusts up to 20 kt until early
morning. waves 1 ft. 
.fri...w winds around 5 kt. waves 1 ft. 
.fri night...nw winds around 5 kt. waves 1 ft. a chance of showers. 
.sat...n winds around 5 kt. waves 1 ft. a chance of rain. 
.sat night...nw winds 5 to 10 kt. waves 1 ft. a chance of rain. 
.sun...nw winds 10 to 15 kt...becoming sw around 5 kt after
midnight. waves 1 ft. 
.mon...sw winds 10 to 15 kt. waves 1 ft.  

$$

fzus51 klwx 301500
cwflwx
expires:202604302000;;786280

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt thu apr 30 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.


anz536-302000-
tidal potomac from indian head to cobb island-
1100 am edt thu apr 30 2026

...small craft advisory in effect until 7 pm edt this evening...

.rest of today...nw winds 10 to 15 kt with gusts to 20 kt. waves
1 ft. 
.tonight...nw winds 10 to 15 kt with gusts to 20 kt... diminishing
to 5 kt late. waves 1 ft. 
.fri...w winds around 5 kt. waves 1 ft. 
.fri night...ne winds around 5 kt. waves 1 ft. a chance of showers. 
.sat...n winds 5 kt. waves less than 1 ft. a chance of rain. 
.sat night...nw winds 5 to 10 kt. waves 1 ft. a chance of rain. 
.sun...nw winds 10 to 15 kt...becoming s around 5 kt after midnight.
waves 1 ft. 
.mon...sw winds 10 to 15 kt. waves 1 ft.  

$$

fzus51 klwx 301500
cwflwx
expires:202604302000;;786281

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt thu apr 30 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.


anz537-302000-
tidal potomac from cobb island to smith point-
1100 am edt thu apr 30 2026

...small craft advisory in effect until 7 pm edt this evening...

.rest of today...nw winds 10 to 15 kt with gusts to 20 kt. waves
2 ft. 
.tonight...nw winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. 
.fri...nw winds 5 to 10 kt...becoming se late. waves 1 ft or less. 
.fri night...se winds 5 to 10 kt...becoming nw after midnight. waves
1 ft. a chance of showers. 
.sat...n winds 5 to 10 kt. waves 1 ft. rain likely. 
.sat night...n winds 10 to 15 kt. waves 1 to 2 ft. a chance of rain.
.sun...nw winds 10 to 15 kt...becoming s around 5 kt after midnight.
waves 1 to 2 ft. 
.mon...sw winds 10 to 15 kt. waves 1 to 2 ft.  

$$