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coastal waters forecast
national weather service baltimore md/washington dc
359 pm est fri dec 12 2025

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.


anz531-130900-
chesapeake bay from pooles island to sandy point-
359 pm est fri dec 12 2025

...gale watch in effect from sunday morning through late sunday
night...

.rest of this afternoon...w winds 5 kt. waves less than 1 ft. 
.tonight...sw winds 5 to 10 kt. waves 1 ft or less. 
.sat...sw winds 5 to 10 kt. waves 1 ft. 
.sat night...nw winds 5 to 10 kt. waves 1 ft. snow showers with a
chance of showers. 
.sun...nw winds 20 to 25 kt with gusts to 35 kt. waves 3 ft. a
chance of snow showers. 
.sun night...nw winds 20 to 25 kt with gusts to 40 kt. waves 3 ft. 
.mon...nw winds 15 to 20 kt...becoming w 5 to 10 kt. waves 2 to
3 ft...subsiding to 1 ft. 
.tue...nw winds 5 to 10 kt...becoming s. waves 1 ft or less.  

$$

fzus51 klwx 122059
cwflwx
expires:202512130900;;468432

coastal waters forecast
national weather service baltimore md/washington dc
359 pm est fri dec 12 2025

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.


anz532-130900-
chesapeake bay from sandy point to north beach-
359 pm est fri dec 12 2025

...gale watch in effect from sunday morning through late sunday
night...

.rest of this afternoon...w winds 5 kt. waves less than 1 ft. 
.tonight...sw winds 5 to 10 kt. waves 1 ft or less. 
.sat...sw winds 5 to 10 kt. waves 1 ft. 
.sat night...w winds 5 kt...becoming n 10 to 15 kt after midnight.
waves 1 ft. snow showers with a chance of showers. 
.sun...nw winds 20 to 25 kt. gusts up to 30 kt... increasing to
40 kt in the afternoon. waves 3 ft. a chance of snow showers. 
.sun night...nw winds 25 to 30 kt. waves 4 ft. 
.mon...nw winds 15 to 20 kt...becoming sw 10 to 15 kt. waves 2 to
3 ft. 
.tue...nw winds 5 to 10 kt...becoming s. waves 1 ft.  

$$

fzus51 klwx 122059
cwflwx
expires:202512130900;;468434

coastal waters forecast
national weather service baltimore md/washington dc
359 pm est fri dec 12 2025

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.


anz533-130900-
chesapeake bay from north beach to drum point-
359 pm est fri dec 12 2025

...gale watch in effect from sunday morning through late sunday
night...

.rest of this afternoon...sw winds 5 kt. waves less than 1 ft. 
.tonight...sw winds 5 to 10 kt. waves 1 ft or less. 
.sat...sw winds 5 to 10 kt. waves 1 ft. 
.sat night...sw winds 5 to 10 kt...becoming nw 10 to 15 kt after
midnight. waves 1 to 2 ft. rain and snow showers. 
.sun...nw winds 25 to 30 kt. gusts up to 30 kt in the morning. waves
4 ft. a chance of snow showers. 
.sun night...nw winds 25 to 30 kt. waves 5 ft. 
.mon...nw winds 15 to 20 kt...becoming sw 10 to 15 kt. waves 4 ft...
subsiding to 2 ft. 
.tue...nw winds 5 to 10 kt...becoming s 10 to 15 kt. waves 1 ft.  

$$

fzus51 klwx 122059
cwflwx
expires:202512130900;;468437

coastal waters forecast
national weather service baltimore md/washington dc
359 pm est fri dec 12 2025

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.


anz534-130900-
chesapeake bay from drum point to smith point-
359 pm est fri dec 12 2025

...gale watch in effect from sunday morning through late sunday
night...

.rest of this afternoon...sw winds 5 kt. waves less than 1 ft. 
.tonight...sw winds 5 to 10 kt. waves 1 ft. 
.sat...sw winds 10 to 15 kt. waves 2 ft. 
.sat night...w winds 10 to 15 kt. waves 1 to 2 ft. a chance of
showers. 
.sun...nw winds 25 to 30 kt. waves 5 ft. snow showers likely. 
.sun night...nw winds 25 to 35 kt. waves 6 ft. 
.mon...nw winds 20 to 25 kt...diminishing to 10 to 15 kt in the
afternoon, then becoming sw 15 to 20 kt. waves 5 ft...subsiding to
2 to 3 ft. 
.tue...nw winds 5 to 10 kt...becoming s 10 to 15 kt. waves 1 to
2 ft.  

$$

fzus51 klwx 122059
cwflwx
expires:202512130900;;468425

coastal waters forecast
national weather service baltimore md/washington dc
359 pm est fri dec 12 2025

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.


anz535-130900-
tidal potomac from key bridge to indian head-
359 pm est fri dec 12 2025

...gale watch in effect from sunday morning through late sunday
night...

.rest of this afternoon...sw winds 5 kt. waves less than 1 ft. 
.tonight...s winds around 5 kt. waves 1 ft or less. 
.sat...sw winds 5 kt. waves less than 1 ft. 
.sat night...n winds 5 to 10 kt. waves 1 ft. snow showers with a
chance of showers. 
.sun...nw winds 15 to 20 kt with gusts to 35 kt. waves 1 to 2 ft. 
.sun night...nw winds 10 to 15 kt with gusts to 25 kt. waves 1 ft. 
.mon...w winds 5 to 10 kt...becoming sw. waves 1 ft.
.tue...sw winds around 5 kt. waves 1 ft.  

$$

fzus51 klwx 122059
cwflwx
expires:202512130900;;468426

coastal waters forecast
national weather service baltimore md/washington dc
359 pm est fri dec 12 2025

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.


anz536-130900-
tidal potomac from indian head to cobb island-
359 pm est fri dec 12 2025

...gale watch in effect from sunday morning through late sunday
night...

.rest of this afternoon...sw winds 5 kt. waves less than 1 ft. 
.tonight...s winds around 5 kt. waves 1 ft. 
.sat...sw winds 5 to 10 kt. waves 1 ft. 
.sat night...sw winds 5 kt...becoming n 10 to 15 kt after midnight.
waves 1 ft. snow showers likely. 
.sun...nw winds 15 to 20 kt with gusts to 35 kt. waves 3 ft. a
chance of snow showers. 
.sun night...nw winds 20 to 25 kt with gusts to 35 kt. waves 3 ft. 
.mon...w winds 10 to 15 kt...becoming sw 5 to 10 kt. waves 1 to
2 ft. 
.tue...s winds around 5 kt...increasing to 5 to 10 kt after
midnight. waves 1 ft or less.  

$$

fzus51 klwx 122059
cwflwx
expires:202512130900;;468427

coastal waters forecast
national weather service baltimore md/washington dc
359 pm est fri dec 12 2025

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.


anz537-130900-
tidal potomac from cobb island to smith point-
359 pm est fri dec 12 2025

...gale watch in effect from sunday morning through late sunday
night...

.rest of this afternoon...sw winds 5 kt. waves flat. 
.tonight...s winds 5 to 10 kt. waves 1 ft or less. 
.sat...sw winds 5 to 10 kt. waves 1 ft. 
.sat night...sw winds 5 kt...becoming nw 10 to 15 kt after midnight.
waves 1 ft. a chance of showers. 
.sun...nw winds 20 to 25 kt. gusts up to 30 kt... increasing to
40 kt in the afternoon. waves 3 ft. a chance of snow showers. 
.sun night...nw winds 25 to 30 kt. waves 4 ft. 
.mon...nw winds 15 to 20 kt...becoming sw 10 to 15 kt. waves 2 to
3 ft...subsiding to 1 ft. 
.tue...n winds 5 to 10 kt...becoming s. waves 1 ft.  

$$