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(1/4)
Latest Coastal Waters Forecast by KLWX
Issued 7/20/2026 4:58 AM America/New_York.
Valid through 7/20/2026 7:00 PM America/New_York.
fzus51 klwx 200858
cwflwx
expires:202607202300;;280905
coastal waters forecast
national weather service baltimore md/washington dc
458 am edt mon jul 20 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.
anz530-202300-
chesapeake bay north of pooles island-
458 am edt mon jul 20 2026
.rest of the overnight...ne winds 5 kt. waves less than 1 ft.
.today...e winds around 5 kt. waves 1 ft.
.tonight...se winds 10 to 15 kt. waves 1 ft. a chance of showers.
.tue...s winds 5 to 10 kt with gusts to 20 kt. waves 1 ft. showers
with tstms likely.
.tue night...sw winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
showers with a chance of tstms.
.wed...w winds 10 to 15 kt with gusts to 20 kt. waves 1 ft. a chance
of showers and tstms.
.wed night...nw winds 5 to 10 kt. waves 1 ft.
.thu...n winds 5 to 10 kt. waves 1 ft.
.fri...e winds around 5 kt. waves 1 ft or less.
winds and waves higher and visibilities lower in and near tstms.
$$
(2/4)
Latest Coastal Waters Forecast by KLWX
Issued 7/20/2026 4:58 AM America/New_York.
Valid through 7/20/2026 7:00 PM America/New_York.
fzus51 klwx 200858
cwflwx
expires:202607202300;;280906
coastal waters forecast
national weather service baltimore md/washington dc
458 am edt mon jul 20 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz531-202300-
chesapeake bay from pooles island to sandy point-
458 am edt mon jul 20 2026
...small craft advisory in effect from this evening through late
tonight...
.rest of the overnight...ne winds 10 kt. waves 1 ft.
.today...e winds 5 to 10 kt...becoming s late. waves 1 ft.
.tonight...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
showers likely.
.tue...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. showers
with tstms likely.
.tue night...sw winds 15 to 20 kt with gusts to 25 kt. waves 2 ft.
showers with a chance of tstms.
.wed...w winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft. a
chance of showers and tstms.
.wed night...n winds 10 to 15 kt. waves 1 to 2 ft.
.thu...ne winds 10 to 15 kt...diminishing to around 5 kt after
midnight. waves 1 to 2 ft...subsiding to flat after midnight.
.fri...e winds around 5 kt. waves 1 ft or less.
winds and waves higher and visibilities lower in and near tstms.
$$
(3/4)
Latest Coastal Waters Forecast by KLWX
Issued 7/20/2026 4:58 AM America/New_York.
Valid through 7/20/2026 7:00 PM America/New_York.
fzus51 klwx 200858
cwflwx
expires:202607202300;;280909
coastal waters forecast
national weather service baltimore md/washington dc
458 am edt mon jul 20 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.
anz532-202300-
chesapeake bay from sandy point to north beach-
458 am edt mon jul 20 2026
...small craft advisory in effect from this evening through late
tonight...
.rest of the overnight...ne winds 5 kt. waves less than 1 ft.
.today...e winds 5 to 10 kt...becoming se late. waves 1 ft.
.tonight...s winds 10 to 15 kt with gusts to 20 kt. waves 3 ft.
showers likely with a chance of tstms.
.tue...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. showers
and tstms likely.
.tue night...sw winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
showers with a chance of tstms.
.wed...w winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft.
showers likely.
.wed night...nw winds 10 to 15 kt. waves 1 to 2 ft.
.thu...ne winds 10 to 15 kt...diminishing to 5 kt after midnight.
waves 1 to 2 ft.
.fri...e winds 5 kt. waves less than 1 ft.
winds and waves higher and visibilities lower in and near tstms.
$$
(4/4)
Latest Coastal Waters Forecast by KLWX
Issued 7/20/2026 4:58 AM America/New_York.
Valid through 7/20/2026 7:00 PM America/New_York.
fzus51 klwx 200858
cwflwx
expires:202607202300;;280911
coastal waters forecast
national weather service baltimore md/washington dc
458 am edt mon jul 20 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz533-202300-
chesapeake bay from north beach to drum point-
458 am edt mon jul 20 2026
...small craft advisory in effect from this evening through late
tonight...
.rest of the overnight...ne winds 5 kt. waves less than 1 ft.
.today...e winds 5 to 10 kt. waves 1 ft.
.tonight...s winds 10 to 15 kt with gusts to 20 kt. waves 2 to 3 ft.
showers likely with a chance of tstms.
.tue...s winds 10 to 15 kt. gusts up to 25 kt in the afternoon.
waves 2 ft. showers and tstms likely.
.tue night...sw winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
showers with a chance of tstms.
.wed...w winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. showers
with a chance of tstms.
.wed night...nw winds 10 to 15 kt. gusts up to 20 kt. waves 1 to
2 ft.
.thu...ne winds 10 to 15 kt...diminishing to 5 kt after midnight.
waves 1 to 2 ft.
.fri...e winds around 5 kt. waves 1 ft.
winds and waves higher and visibilities lower in and near tstms.
$$
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