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(1/2)
Latest Coastal Waters Forecast by KLWX
Issued 7/21/2026 4:57 AM America/New_York.
Valid through 7/21/2026 7:00 PM America/New_York.
fzus51 klwx 210857
cwflwx
expires:202607212300;;339930
coastal waters forecast
national weather service baltimore md/washington dc
457 am edt tue jul 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.
anz531-212300-
chesapeake bay from pooles island to sandy point-
457 am edt tue jul 21 2026
...small craft advisory in effect through wednesday morning...
.rest of the overnight...se winds 15 kt with gusts to 20 kt. waves
2 ft. scattered showers and tstms.
.today...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
showers and numerous tstms.
.tonight...sw winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
showers and numerous tstms.
.wed...sw winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft. a
chance of showers and tstms.
.wed night...nw winds 10 to 15 kt. gusts up to 20 kt. waves 1 to
2 ft. a chance of showers and tstms.
.thu...n winds 10 to 15 kt. waves 1 to 2 ft.
.thu night...ne winds 5 kt. waves less than 1 ft.
.fri...e winds 5 to 10 kt. waves 1 ft.
.sat...e winds 5 kt. waves less than 1 ft. a chance of showers
through the night.
winds and waves higher and visibilities lower in and near tstms.
$$
(2/2)
Latest Coastal Waters Forecast by KLWX
Issued 7/21/2026 4:57 AM America/New_York.
Valid through 7/21/2026 7:00 PM America/New_York.
fzus51 klwx 210857
cwflwx
expires:202607212300;;339933
coastal waters forecast
national weather service baltimore md/washington dc
457 am edt tue jul 21 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz532-212300-
chesapeake bay from sandy point to north beach-
457 am edt tue jul 21 2026
...small craft advisory in effect through wednesday morning...
.rest of the overnight...s winds 15 kt. waves 2 ft. scattered
showers and tstms.
.today...s winds 10 to 15 kt with gusts to 25 kt. waves 2 to 3 ft.
numerous showers and tstms.
.tonight...sw winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
showers and numerous tstms.
.wed...sw winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft. a
chance of showers and tstms.
.wed night...nw winds 10 to 15 kt. gusts up to 20 kt. waves 1 to
2 ft. a chance of showers and tstms.
.thu...n winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.thu night...ne winds 5 to 10 kt. waves 1 ft.
.fri...e winds 5 to 10 kt. waves 1 ft.
.sat...e winds 5 to 10 kt...becoming se after midnight. waves 1 ft.
a chance of showers through the night.
winds and waves higher and visibilities lower in and near tstms.
$$
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