(1/4)
Latest Coastal Waters Forecast by KLWX
Issued 4/21/2026 2:27 AM America/New_York.
Valid through 4/21/2026 4:00 PM America/New_York.
fzus51 klwx 210627
cwflwx
expires:202604212000;;729079
coastal waters forecast
national weather service baltimore md/washington dc
226 am 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.
anz530-212000-
chesapeake bay north of pooles island-
226 am edt tue apr 21 2026
.overnight...ne winds 10 kt. waves 1 ft.
.tue...n winds 5 kt...becoming s late. waves 1 ft.
.tue night...s winds 5 to 10 kt. waves 1 ft.
.wed...sw winds 5 to 10 kt. waves 1 ft. showers likely.
.wed night...nw winds around 5 kt. waves 1 ft or less.
.thu...nw winds around 5 kt. waves 1 ft.
.thu night...nw winds around 5 kt. waves 1 ft or less.
.fri...e winds around 5 kt. waves 1 ft or less. a chance of showers
through the night.
.sat...e winds 10 to 15 kt. waves 1 ft. a chance of showers in the
morning, then showers likely.
$$
(2/4)
Latest Coastal Waters Forecast by KLWX
Issued 4/21/2026 2:27 AM America/New_York.
Valid through 4/21/2026 4:00 PM America/New_York.
fzus51 klwx 210627
cwflwx
expires:202604212000;;729080
coastal waters forecast
national weather service baltimore md/washington dc
226 am edt tue apr 21 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz531-212000-
chesapeake bay from pooles island to sandy point-
226 am edt tue apr 21 2026
...small craft advisory in effect until 4 am edt early this
morning...
.overnight...ne winds 10 kt. waves 1 to 2 ft.
.tue...ne winds 5 to 10 kt...becoming se in the afternoon. waves
1 ft.
.tue night...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.wed...sw winds 10 to 15 kt...diminishing to 5 kt in the afternoon.
waves 1 to 2 ft. showers likely.
.wed night...nw winds around 5 kt. waves 1 ft or less.
.thu...nw winds 5 kt. waves flat.
.thu night...se winds around 5 kt. waves flat.
.fri...e winds 5 to 10 kt. waves 1 ft or less. a chance of showers.
.sat...e winds 10 to 15 kt. waves 1 to 2 ft. a chance of showers in
the morning, then showers likely.
$$
(3/4)
Latest Coastal Waters Forecast by KLWX
Issued 4/21/2026 2:27 AM America/New_York.
Valid through 4/21/2026 4:00 PM America/New_York.
fzus51 klwx 210627
cwflwx
expires:202604212000;;729083
coastal waters forecast
national weather service baltimore md/washington dc
226 am 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.
anz532-212000-
chesapeake bay from sandy point to north beach-
226 am edt tue apr 21 2026
...small craft advisory in effect until 4 am edt early this
morning...
...small craft advisory in effect from this evening through
wednesday morning...
.overnight...ne winds 10 kt. waves 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.
.wed...sw winds 10 to 15 kt. gusts up to 20 kt in the morning. waves
3 ft...subsiding to 1 ft in the afternoon. showers likely.
.wed night...nw winds around 5 kt. waves 1 ft or less.
.thu...nw winds 5 kt. waves flat.
.thu night...w winds 5 kt. waves flat.
.fri...e winds 5 to 10 kt. waves 1 ft or less. a chance of showers.
.sat...e winds 10 to 15 kt...becoming ne 15 to 20 kt after midnight.
waves 1 to 2 ft. a chance of showers in the morning, then showers
likely.
$$
(4/4)
Latest Coastal Waters Forecast by KLWX
Issued 4/21/2026 2:27 AM America/New_York.
Valid through 4/21/2026 4:00 PM America/New_York.
fzus51 klwx 210627
cwflwx
expires:202604212000;;729085
coastal waters forecast
national weather service baltimore md/washington dc
226 am edt tue apr 21 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz533-212000-
chesapeake bay from north beach to drum point-
226 am edt tue apr 21 2026
...small craft advisory in effect until 4 am edt early this
morning...
...small craft advisory in effect from this evening through
wednesday morning...
.overnight...ne winds 15 kt with gusts to 20 kt. waves 2 ft.
.tue...ne winds 5 to 10 kt...becoming se late. waves 1 ft.
.tue night...s winds 15 to 20 kt. waves 2 to 3 ft.
.wed...sw winds 15 to 20 kt...becoming w 5 to 10 kt in the
afternoon. waves 3 ft...subsiding to 1 ft in the afternoon. showers
likely.
.wed night...nw winds around 5 kt. waves 1 ft or less.
.thu...nw winds around 5 kt. waves 1 ft or less.
.thu night...sw winds around 5 kt. waves flat.
.fri...ne winds 5 kt...becoming se. waves 1 ft or less. a chance of
showers through the night.
.sat...e winds 10 to 15 kt...becoming ne 15 to 20 kt after midnight.
waves 1 to 2 ft. a chance of showers in the morning, then showers
likely.
$$
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