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(1/4)
Latest Coastal Waters Forecast by KLWX
Issued 4/21/2026 10:57 PM America/New_York.
Valid through 4/22/2026 4:00 AM America/New_York.
fzus51 klwx 220257
cwflwx
expires:202604220800;;775516
coastal waters forecast
national weather service baltimore md/washington dc
1057 pm edt tue apr 21 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.
anz530-220800-
chesapeake bay north of pooles island-
1057 pm edt tue apr 21 2026
...small craft advisory in effect until 8 am edt wednesday...
.rest of tonight...s winds 10 to 15 kt with gusts to 20 kt. waves
1 ft.
.wed...sw winds 5 to 10 kt with gusts to 20 kt... becoming n late.
waves 1 ft. a chance of showers.
.wed night...n winds around 5 kt. waves flat.
.thu...nw winds around 5 kt. waves flat.
.thu night...n winds around 5 kt. waves flat.
.fri...ne winds around 5 kt. waves flat. a chance of showers.
.fri night...e winds 5 to 10 kt. waves 1 ft or less. a chance of
showers.
.sat...e winds 5 to 10 kt. waves 1 ft. showers likely.
.sun...ne winds 10 to 15 kt...diminishing to 5 kt after midnight.
waves 1 ft or less. showers likely, mainly in the morning.
$$
(2/4)
Latest Coastal Waters Forecast by KLWX
Issued 4/21/2026 10:57 PM America/New_York.
Valid through 4/22/2026 4:00 AM America/New_York.
fzus51 klwx 220257
cwflwx
expires:202604220800;;775517
coastal waters forecast
national weather service baltimore md/washington dc
1057 pm edt tue apr 21 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz531-220800-
chesapeake bay from pooles island to sandy point-
1057 pm edt tue apr 21 2026
...small craft advisory in effect through wednesday morning...
.rest of tonight...s winds 15 kt with gusts to 25 kt. waves 2 ft.
.wed...sw winds 10 to 15 kt with gusts to 20 kt... becoming ne 5 kt
late. waves 1 to 2 ft. a chance of showers.
.wed night...n winds 5 kt. waves less than 1 ft.
.thu...nw winds 5 kt. waves flat.
.thu night...nw winds around 5 kt. waves flat.
.fri...ne winds 5 kt. waves flat. a chance of showers.
.fri night...e winds 5 to 10 kt. waves 1 ft. a chance of showers.
.sat...e winds 10 to 15 kt. waves 1 to 2 ft. showers likely.
.sun...ne winds 10 to 15 kt. waves 1 to 2 ft. showers likely, mainly
in the morning.
$$
(3/4)
Latest Coastal Waters Forecast by KLWX
Issued 4/21/2026 10:57 PM America/New_York.
Valid through 4/22/2026 4:00 AM America/New_York.
fzus51 klwx 220257
cwflwx
expires:202604220800;;775520
coastal waters forecast
national weather service baltimore md/washington dc
1057 pm edt tue apr 21 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.
anz532-220800-
chesapeake bay from sandy point to north beach-
1057 pm edt tue apr 21 2026
...small craft advisory in effect through wednesday morning...
.rest of tonight...s winds 15 to 20 kt with gusts to 25 kt. waves
3 ft.
.wed...sw winds 10 to 15 kt with gusts to 20 kt... becoming w 5 kt
late. waves 3 ft...subsiding to 1 ft in the afternoon. a chance of
showers.
.wed night...nw winds 5 kt. waves less than 1 ft. a chance of
showers.
.thu...nw winds 5 kt. waves flat.
.thu night...w winds 5 kt. waves flat.
.fri...ne winds 5 kt. waves less than 1 ft. a chance of showers.
.fri night...e winds 5 to 10 kt. waves 1 ft. a chance of showers.
.sat...e winds 15 to 20 kt. waves 1 to 2 ft. a chance of showers in
the morning, then showers.
.sun...ne winds 15 to 20 kt...diminishing to 10 kt after midnight.
waves 1 to 2 ft. showers likely, mainly in the morning.
$$
(4/4)
Latest Coastal Waters Forecast by KLWX
Issued 4/21/2026 10:57 PM America/New_York.
Valid through 4/22/2026 4:00 AM America/New_York.
fzus51 klwx 220257
cwflwx
expires:202604220800;;775522
coastal waters forecast
national weather service baltimore md/washington dc
1057 pm edt tue apr 21 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz533-220800-
chesapeake bay from north beach to drum point-
1057 pm edt tue apr 21 2026
...small craft advisory in effect through wednesday morning...
.rest of tonight...s winds 15 to 20 kt with gusts to 25 kt. waves
3 ft.
.wed...sw winds 10 to 15 kt with gusts to 25 kt... becoming w 5 to
10 kt late. waves 3 ft...subsiding to 1 ft in the afternoon. a
chance of showers.
.wed night...nw winds around 5 kt. waves 1 ft.
.thu...nw winds 5 kt. waves less than 1 ft.
.thu night...w winds around 5 kt. waves flat.
.fri...ne winds 5 kt. waves less than 1 ft. a chance of showers.
.fri night...e winds 5 to 10 kt. waves 1 ft. a chance of showers.
.sat...e winds 15 to 20 kt. waves 1 to 2 ft. a chance of showers in
the morning, then showers.
.sun...ne winds 15 to 20 kt. waves 2 to 3 ft. showers likely, mainly
in the morning.
$$
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