(1/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/20/2026 10:58 AM America/New_York.
Valid through 9/20/2026 4:00 PM America/New_York.
fzus51 klwx 201458
cwflwx
expires:202609202000;;768878
coastal waters forecast
national weather service baltimore md/washington dc
1058 am edt sun sep 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.
anz531-202000-
chesapeake bay from pooles island to sandy point-
1058 am edt sun sep 20 2026
...small craft advisory in effect until 1 pm edt this afternoon...
...small craft advisory in effect monday morning...
.rest of today...s winds 10 to 15 kt with gusts to 20 kt. waves
2 ft. scattered showers late this morning, then numerous showers
with a chance of tstms this afternoon.
.tonight...w winds 5 to 10 kt...becoming n 10 to 15 kt with gusts to
20 kt after midnight. waves 1 to 2 ft. numerous showers with a
chance of tstms.
.mon...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.mon night...e winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
showers likely.
.tue...ne winds 15 to 20 kt with gusts to 25 kt. waves 3 ft. showers
likely.
.tue night...ne winds 15 to 20 kt with gusts to 25 kt. waves 3 ft. a
chance of showers.
.wed...ne winds 20 to 25 kt. waves 3 ft. a chance of showers.
.thu...ne winds 20 to 25 kt. waves 3 ft. a chance of showers.
winds and waves higher and visibilities lower in and near tstms.
$$
(2/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/20/2026 10:58 AM America/New_York.
Valid through 9/20/2026 4:00 PM America/New_York.
fzus51 klwx 201458
cwflwx
expires:202609202000;;768881
coastal waters forecast
national weather service baltimore md/washington dc
1058 am edt sun sep 20 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz532-202000-
chesapeake bay from sandy point to north beach-
1058 am edt sun sep 20 2026
...small craft advisory in effect until 1 pm edt this afternoon...
...small craft advisory in effect monday morning...
.rest of today...s winds 10 to 15 kt with gusts to 20 kt. waves
2 ft. scattered showers late this morning, then scattered showers
with a chance of tstms this afternoon.
.tonight...sw winds 5 to 10 kt...becoming n 10 to 15 kt after
midnight. waves 2 ft. showers likely with a chance of tstms.
.mon...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. a
chance of showers.
.mon night...e winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
showers likely.
.tue...ne winds 15 to 20 kt with gusts to 25 kt. waves 3 ft. showers
likely.
.tue night...ne winds 20 kt with gusts to 25 kt. waves 3 ft. showers
likely.
.wed...ne winds 20 to 25 kt. waves 3 ft. a chance of showers.
.thu...ne winds 20 to 25 kt. waves 3 ft. a chance of showers.
winds and waves higher and visibilities lower in and near tstms.
$$
(3/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/20/2026 10:58 AM America/New_York.
Valid through 9/20/2026 4:00 PM America/New_York.
fzus51 klwx 201458
cwflwx
expires:202609202000;;768883
coastal waters forecast
national weather service baltimore md/washington dc
1058 am edt sun sep 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.
anz533-202000-
chesapeake bay from north beach to drum point-
1058 am edt sun sep 20 2026
...small craft advisory in effect until 1 pm edt this afternoon...
...small craft advisory in effect monday morning...
.rest of today...s winds 10 to 15 kt with gusts to 20 kt. waves
2 ft. isolated showers.
.tonight...sw winds 5 to 10 kt...becoming n 10 to 15 kt after
midnight. waves 2 ft. showers likely with a chance of tstms.
.mon...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.mon night...e winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
showers likely.
.tue...ne winds 15 to 20 kt with gusts to 25 kt. waves 3 ft. showers
likely.
.tue night...ne winds 20 kt with gusts to 30 kt. waves 4 ft. a
chance of showers.
.wed...ne winds 20 kt...increasing to 25 to 30 kt. waves 4 ft. a
chance of showers.
.thu...ne winds 25 to 30 kt. waves 4 ft. a chance of showers.
winds and waves higher and visibilities lower in and near tstms.
$$
(4/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/20/2026 10:58 AM America/New_York.
Valid through 9/20/2026 4:00 PM America/New_York.
fzus51 klwx 201458
cwflwx
expires:202609202000;;768886
coastal waters forecast
national weather service baltimore md/washington dc
1058 am edt sun sep 20 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz534-202000-
chesapeake bay from drum point to smith point-
1058 am edt sun sep 20 2026
...small craft advisory in effect until 1 pm edt this afternoon...
...small craft advisory in effect monday morning...
.rest of today...s winds 15 kt with gusts to 20 kt. waves 2 ft.
.tonight...s winds 10 to 15 kt...becoming nw 5 to 10 kt after
midnight. waves 2 ft. a chance of showers and tstms.
.mon...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.mon night...e winds 10 to 15 kt with gusts to 20 kt. waves 3 ft. a
chance of showers.
.tue...e winds 15 to 20 kt. gusts up to 20 kt... increasing to 30 kt
in the afternoon. waves 2 ft...building to 4 ft in the afternoon.
showers likely.
.tue night...ne winds 20 to 25 kt with gusts to 30 kt. waves 5 ft.
showers likely with a chance of tstms.
.wed...ne winds 25 to 30 kt. waves 5 ft. showers likely with a
chance of tstms in the morning. a chance of showers.
.thu...ne winds 25 to 30 kt. waves 4 ft. a chance of showers.
winds and waves higher and visibilities lower in and near tstms.
$$
(5/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/20/2026 10:58 AM America/New_York.
Valid through 9/20/2026 4:00 PM America/New_York.
fzus51 klwx 201458
cwflwx
expires:202609202000;;768874
coastal waters forecast
national weather service baltimore md/washington dc
1058 am edt sun sep 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.
anz535-202000-
tidal potomac from key bridge to indian head-
1058 am edt sun sep 20 2026
.rest of today...sw winds 10 kt. waves 1 ft. scattered showers late
this morning, then scattered showers with a chance of tstms this
afternoon.
.tonight...nw winds 5 kt. waves less than 1 ft. showers likely with
a chance of tstms.
.mon...ne winds 10 kt. waves 1 ft.
.mon night...e winds 10 kt. waves 1 ft. showers.
.tue...ne winds 10 to 15 kt. waves 1 ft. showers.
.tue night...ne winds 10 to 15 kt. waves 1 ft. showers likely.
.wed...ne winds 10 to 15 kt. waves 1 ft. showers likely. a chance of
showers after midnight.
.thu...n winds 10 to 15 kt. waves 1 ft. a chance of showers.
winds and waves higher and visibilities lower in and near tstms.
$$
(6/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/20/2026 10:58 AM America/New_York.
Valid through 9/20/2026 4:00 PM America/New_York.
fzus51 klwx 201458
cwflwx
expires:202609202000;;768875
coastal waters forecast
national weather service baltimore md/washington dc
1058 am edt sun sep 20 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz536-202000-
tidal potomac from indian head to cobb island-
1058 am edt sun sep 20 2026
.rest of today...sw winds 10 kt. waves 1 ft. isolated showers late
this morning, then scattered showers with a chance of tstms this
afternoon.
.tonight...w winds 5 kt...becoming n late. waves 1 ft. a chance of
showers and tstms.
.mon...ne winds 10 kt. waves 1 ft.
.mon night...e winds 10 kt. waves 1 ft. a chance of showers.
.tue...ne winds 10 to 15 kt with gusts to 20 kt. waves 1 ft. showers
likely.
.tue night...ne winds 10 to 15 kt with gusts to 20 kt. waves 1 ft.
showers likely with a chance of tstms.
.wed...ne winds 15 to 20 kt. waves 1 to 2 ft. a chance of tstms in
the morning. showers likely. a chance of showers after midnight.
.thu...n winds 15 to 20 kt. waves 1 to 2 ft. a chance of showers.
winds and waves higher and visibilities lower in and near tstms.
$$
(7/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/20/2026 10:58 AM America/New_York.
Valid through 9/20/2026 4:00 PM America/New_York.
fzus51 klwx 201458
cwflwx
expires:202609202000;;768876
coastal waters forecast
national weather service baltimore md/washington dc
1058 am edt sun sep 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.
anz537-202000-
tidal potomac from cobb island to smith point-
1058 am edt sun sep 20 2026
...small craft advisory in effect until 1 pm edt this afternoon...
.rest of today...s winds 10 kt. waves 1 ft.
.tonight...sw winds 5 to 10 kt...becoming n late. waves 1 ft. a
chance of showers and tstms.
.mon...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.mon night...e winds 10 to 15 kt with gusts to 20 kt. waves 3 ft.
showers likely.
.tue...ne winds 15 to 20 kt. gusts up to 25 kt in the afternoon.
waves 2 to 3 ft. showers likely.
.tue night...ne winds 15 to 20 kt with gusts to 30 kt. waves 4 ft.
showers likely with a chance of tstms.
.wed...ne winds 20 to 25 kt. waves 4 ft. a chance of tstms in the
morning. showers likely, then a chance of showers after midnight.
.thu...ne winds 20 to 25 kt. waves 4 ft. a chance of showers.
winds and waves higher and visibilities lower in and near tstms.
$$
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