(1/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/19/2026 4:57 AM America/New_York.
Valid through 9/19/2026 7:00 PM America/New_York.
fzus51 klwx 190857
cwflwx
expires:202609192300;;701569
coastal waters forecast
national weather service baltimore md/washington dc
456 am edt sat sep 19 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.
anz531-192300-
chesapeake bay from pooles island to sandy point-
456 am edt sat sep 19 2026
...small craft advisory in effect until 10 am edt this morning...
.rest of the overnight...ne winds 15 kt with gusts to 20 kt. waves
2 ft.
.today...ne winds 10 to 15 kt. gusts up to 20 kt in the morning.
waves 1 to 2 ft.
.tonight...e winds 15 to 20 kt...becoming se 10 to 15 kt after
midnight. waves 2 ft.
.sun...s winds 15 to 20 kt. waves 2 ft. a chance of showers.
.sun night...sw winds 10 to 15 kt...becoming nw 15 to 20 kt after
midnight. waves 2 ft. showers likely.
.mon...ne winds 15 to 20 kt. waves 2 ft. a chance of showers.
.mon night...ne winds 15 to 20 kt with gusts to 25 kt. waves 2 ft. a
chance of showers.
.tue...ne winds 20 to 25 kt. waves 3 ft. a chance of showers.
.wed...ne winds 20 to 25 kt. waves 3 ft. a chance of showers.
$$
(2/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/19/2026 4:57 AM America/New_York.
Valid through 9/19/2026 7:00 PM America/New_York.
fzus51 klwx 190857
cwflwx
expires:202609192300;;701572
coastal waters forecast
national weather service baltimore md/washington dc
456 am edt sat sep 19 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz532-192300-
chesapeake bay from sandy point to north beach-
456 am edt sat sep 19 2026
...small craft advisory in effect until 10 am edt this morning...
.rest of the overnight...ne winds 15 kt with gusts to 20 kt. waves
2 ft.
.today...ne winds 10 to 15 kt. gusts up to 20 kt in the morning.
waves 1 to 2 ft.
.tonight...e winds 10 to 15 kt...becoming se in the late evening and
overnight. gusts up to 20 kt. waves 2 ft.
.sun...s winds 15 to 20 kt. waves 2 to 3 ft.
.sun night...sw winds 10 to 15 kt...becoming nw 15 to 20 kt after
midnight. waves 2 ft. showers likely.
.mon...ne winds 15 to 20 kt. waves 2 ft. a chance of showers.
.mon night...ne winds 15 to 20 kt. waves 2 ft. a chance of showers.
.tue...ne winds 20 to 25 kt. waves 3 ft. a chance of showers.
.wed...ne winds 25 to 30 kt. waves 4 ft. a chance of showers.
$$
(3/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/19/2026 4:57 AM America/New_York.
Valid through 9/19/2026 7:00 PM America/New_York.
fzus51 klwx 190857
cwflwx
expires:202609192300;;701574
coastal waters forecast
national weather service baltimore md/washington dc
456 am edt sat sep 19 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.
anz533-192300-
chesapeake bay from north beach to drum point-
456 am edt sat sep 19 2026
...small craft advisory in effect until 10 am edt this morning...
.rest of the overnight...ne winds 15 kt with gusts to 20 kt. waves
2 ft.
.today...ne winds 10 to 15 kt with gusts to 20 kt... becoming n 5 to
10 kt in the afternoon. waves 1 to 2 ft.
.tonight...e winds 10 to 15 kt...becoming se in the late evening and
overnight. gusts up to 20 kt. waves 2 ft.
.sun...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.sun night...s winds 10 to 15 kt...becoming nw 15 to 20 kt after
midnight. waves 2 ft. showers likely.
.mon...ne winds 15 to 20 kt. waves 3 ft. a chance of showers.
.mon night...ne winds 15 to 20 kt. waves 2 to 3 ft. a chance of
showers.
.tue...ne winds 25 to 30 kt. waves 3 ft...building to 4 ft. a chance
of showers.
.wed...ne winds 25 to 30 kt. waves 4 ft. a chance of showers.
$$
(4/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/19/2026 4:57 AM America/New_York.
Valid through 9/19/2026 7:00 PM America/New_York.
fzus51 klwx 190857
cwflwx
expires:202609192300;;701577
coastal waters forecast
national weather service baltimore md/washington dc
456 am edt sat sep 19 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz534-192300-
chesapeake bay from drum point to smith point-
456 am edt sat sep 19 2026
...small craft advisory in effect until 10 am edt this morning...
...small craft advisory in effect from this afternoon through late
tonight...
.rest of the overnight...ne winds 15 kt with gusts to 20 kt. waves
2 ft.
.today...ne winds 10 to 15 kt with gusts to 20 kt... becoming se
5 to 10 kt late. waves 1 to 2 ft.
.tonight...se winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.sun...s winds 10 to 15 kt. waves 2 ft.
.sun night...s winds 10 to 15 kt...becoming w 5 to 10 kt after
midnight. gusts up to 20 kt. waves 2 ft. a chance of showers.
.mon...n winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. a chance
of showers.
.mon night...ne winds 15 to 20 kt with gusts to 25 kt. waves 3 ft. a
chance of showers.
.tue...ne winds 20 to 25 kt. waves 4 ft. a chance of showers.
.wed...ne winds 25 to 30 kt. waves 5 ft. a chance of showers.
$$
(5/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/19/2026 4:57 AM America/New_York.
Valid through 9/19/2026 7:00 PM America/New_York.
fzus51 klwx 190857
cwflwx
expires:202609192300;;701565
coastal waters forecast
national weather service baltimore md/washington dc
456 am edt sat sep 19 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.
anz535-192300-
tidal potomac from key bridge to indian head-
456 am edt sat sep 19 2026
.rest of the overnight...ne winds 10 kt. waves 1 ft.
.today...ne winds 5 to 10 kt. waves 1 ft.
.tonight...se winds 5 kt. waves less than 1 ft.
.sun...s winds 5 to 10 kt with gusts to 20 kt. waves 1 ft. a chance
of showers.
.sun night...sw winds 5 to 10 kt...becoming n after midnight. waves
1 ft. showers likely.
.mon...ne winds 5 to 10 kt. waves 1 ft. a chance of showers.
.mon night...ne winds 5 to 10 kt. waves 1 ft. a chance of showers.
.tue...ne winds 10 to 15 kt. waves 1 ft. a chance of showers in the
morning, then showers likely through the night. a chance of showers
after midnight.
.wed...ne winds 10 to 15 kt. waves 1 ft. a chance of showers.
$$
(6/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/19/2026 4:57 AM America/New_York.
Valid through 9/19/2026 7:00 PM America/New_York.
fzus51 klwx 190857
cwflwx
expires:202609192300;;701566
coastal waters forecast
national weather service baltimore md/washington dc
456 am edt sat sep 19 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz536-192300-
tidal potomac from indian head to cobb island-
456 am edt sat sep 19 2026
.rest of the overnight...ne winds 10 kt. waves 1 ft.
.today...e winds 5 to 10 kt. waves 1 ft.
.tonight...se winds 10 to 15 kt...becoming s 5 to 10 kt late. waves
1 ft.
.sun...s winds 5 to 10 kt with gusts to 20 kt. waves 1 ft.
.sun night...sw winds 5 to 10 kt...becoming nw after midnight. waves
1 ft. showers likely.
.mon...ne winds 5 to 10 kt. waves 1 ft. a chance of showers.
.mon night...ne winds 10 to 15 kt. waves 1 ft. a chance of showers.
.tue...ne winds 15 to 20 kt. waves 1 to 2 ft. a chance of showers in
the morning, then showers likely through the night. a chance of
showers after midnight.
.wed...ne winds 15 to 20 kt. waves 2 ft. a chance of showers.
$$
(7/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/19/2026 4:57 AM America/New_York.
Valid through 9/19/2026 7:00 PM America/New_York.
fzus51 klwx 190857
cwflwx
expires:202609192300;;701567
coastal waters forecast
national weather service baltimore md/washington dc
456 am edt sat sep 19 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.
anz537-192300-
tidal potomac from cobb island to smith point-
456 am edt sat sep 19 2026
...small craft advisory in effect until 10 am edt this morning...
...small craft advisory in effect from this afternoon through late
tonight...
.rest of the overnight...ne winds 10 kt with gusts to 20 kt. waves
2 ft.
.today...ne winds 10 to 15 kt with gusts to 20 kt... becoming e 5 to
10 kt late. waves 1 to 2 ft.
.tonight...se winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.sun...s winds 10 to 15 kt. waves 1 ft.
.sun night...sw winds 5 to 10 kt. waves 1 ft. a chance of showers.
.mon...n winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. a chance
of showers.
.mon night...ne winds 15 to 20 kt with gusts to 25 kt. waves 3 ft. a
chance of showers.
.tue...ne winds 20 to 25 kt. waves 3 ft...building to 5 ft. a chance
of showers.
.wed...ne winds 25 to 30 kt. waves 5 ft. a chance of showers.
$$
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