(1/7)
Latest Coastal Waters Forecast by KLWX
Issued 10/20/2026 4:58 AM America/New_York.
Valid through 10/20/2026 7:00 PM America/New_York.
fzus51 klwx 200858
cwflwx
expires:202610202300;;876726
coastal waters forecast
national weather service baltimore md/washington dc
457 am edt tue oct 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-
457 am edt tue oct 20 2026
...small craft advisory in effect through late tonight...
.rest of the overnight...n winds 15 kt with gusts to 20 kt. waves
2 ft.
.today...n winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.tonight...n winds 15 to 20 kt with gusts to 25 kt. waves 2 to 3 ft.
.wed...n winds 15 to 20 kt...diminishing to 10 kt in the afternoon.
waves 2 to 3 ft.
.wed night...n winds 10 to 15 kt. waves 2 ft.
.thu...n winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.thu night...n winds 15 to 20 kt with gusts to 25 kt. waves 2 to
3 ft.
.fri...n winds 15 to 20 kt...becoming ne 5 to 10 kt. waves 2 to
3 ft...subsiding to 1 ft.
.sat...ne winds 5 to 10 kt. waves 1 ft or less.
$$
(2/7)
Latest Coastal Waters Forecast by KLWX
Issued 10/20/2026 4:58 AM America/New_York.
Valid through 10/20/2026 7:00 PM America/New_York.
fzus51 klwx 200858
cwflwx
expires:202610202300;;876729
coastal waters forecast
national weather service baltimore md/washington dc
457 am edt tue oct 20 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz532-202300-
chesapeake bay from sandy point to north beach-
457 am edt tue oct 20 2026
...small craft advisory in effect through late tonight...
.rest of the overnight...n winds 15 kt with gusts to 20 kt. waves
2 ft.
.today...n winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
.tonight...n winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
.wed...n winds 15 to 20 kt. gusts up to 25 kt in the morning. waves
2 to 3 ft.
.wed night...n winds 10 to 15 kt. waves 1 to 2 ft.
.thu...n winds 10 to 15 kt. waves 2 ft.
.thu night...n winds 20 to 25 kt. waves 2 to 3 ft.
.fri...n winds 15 to 20 kt...becoming ne 10 to 15 kt. waves 2 to
3 ft...subsiding to 1 ft.
.sat...ne winds 5 to 10 kt. waves 1 ft or less.
$$
(3/7)
Latest Coastal Waters Forecast by KLWX
Issued 10/20/2026 4:58 AM America/New_York.
Valid through 10/20/2026 7:00 PM America/New_York.
fzus51 klwx 200858
cwflwx
expires:202610202300;;876731
coastal waters forecast
national weather service baltimore md/washington dc
457 am edt tue oct 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-
457 am edt tue oct 20 2026
...small craft advisory in effect through late tonight...
.rest of the overnight...n winds 20 kt. waves 3 ft.
.today...n winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
.tonight...n winds 20 to 25 kt with gusts to 30 kt. waves 3 ft.
.wed...n winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
.wed night...n winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.thu...n winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.thu night...n winds 20 to 25 kt. waves 3 ft.
.fri...n winds 15 to 20 kt...becoming ne 10 to 15 kt. waves 3 ft...
subsiding to 2 ft.
.sat...ne winds 10 to 15 kt...diminishing to 5 kt. waves 1 to 2 ft.
$$
(4/7)
Latest Coastal Waters Forecast by KLWX
Issued 10/20/2026 4:58 AM America/New_York.
Valid through 10/20/2026 7:00 PM America/New_York.
fzus51 klwx 200858
cwflwx
expires:202610202300;;876734
coastal waters forecast
national weather service baltimore md/washington dc
457 am edt tue oct 20 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz534-202300-
chesapeake bay from drum point to smith point-
457 am edt tue oct 20 2026
...small craft advisory in effect through late tonight...
.rest of the overnight...n winds 20 kt with gusts to 25 kt. waves
3 ft.
.today...n winds 15 to 20 kt with gusts to 30 kt. waves 4 ft.
.tonight...n winds 20 to 25 kt with gusts to 30 kt. waves 4 ft.
.wed...n winds 20 to 25 kt...diminishing to 15 kt in the afternoon.
waves 3 ft.
.wed night...n winds 10 to 15 kt with gusts to 20 kt. waves 3 ft.
.thu...n winds 15 to 20 kt. waves 3 ft.
.thu night...n winds 10 to 15 kt...increasing to 20 to 25 kt after
midnight. waves 3 ft.
.fri...ne winds 15 to 20 kt. waves 3 ft...subsiding to 2 ft.
.sat...ne winds 10 to 15 kt. waves 1 to 2 ft.
$$
(5/7)
Latest Coastal Waters Forecast by KLWX
Issued 10/20/2026 4:58 AM America/New_York.
Valid through 10/20/2026 7:00 PM America/New_York.
fzus51 klwx 200858
cwflwx
expires:202610202300;;876722
coastal waters forecast
national weather service baltimore md/washington dc
457 am edt tue oct 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.
anz535-202300-
tidal potomac from key bridge to indian head-
457 am edt tue oct 20 2026
...small craft advisory in effect from 8 am edt this morning through
this afternoon...
.rest of the overnight...n winds 10 kt. waves 1 ft.
.today...n winds 5 to 10 kt with gusts to 20 kt. waves 1 ft.
.tonight...n winds 5 to 10 kt. waves 1 ft.
.wed...n winds 5 to 10 kt. waves 1 ft.
.wed night...n winds 5 kt. waves less than 1 ft.
.thu...nw winds 5 to 10 kt. waves 1 ft.
.thu night...n winds 5 to 10 kt. waves 1 ft.
.fri...ne winds 5 to 10 kt. waves 1 ft.
.sat...ne winds around 5 kt. waves 1 ft or less.
$$
(6/7)
Latest Coastal Waters Forecast by KLWX
Issued 10/20/2026 4:58 AM America/New_York.
Valid through 10/20/2026 7:00 PM America/New_York.
fzus51 klwx 200858
cwflwx
expires:202610202300;;876723
coastal waters forecast
national weather service baltimore md/washington dc
457 am edt tue oct 20 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz536-202300-
tidal potomac from indian head to cobb island-
457 am edt tue oct 20 2026
...small craft advisory in effect from 8 am edt this morning through
this afternoon...
.rest of the overnight...n winds 10 kt. waves 1 ft.
.today...n winds 10 to 15 kt with gusts to 20 kt. waves 1 ft.
.tonight...n winds 10 kt with gusts to 20 kt. waves 1 ft.
.wed...n winds 5 to 10 kt. waves 1 ft.
.wed night...n winds 5 to 10 kt. waves 1 ft.
.thu...n winds 5 to 10 kt. waves 1 ft.
.thu night...n winds 10 to 15 kt. waves 1 ft.
.fri...n winds 10 to 15 kt...becoming ne 5 kt. waves 1 ft.
.sat...ne winds around 5 kt. waves 1 ft.
$$
(7/7)
Latest Coastal Waters Forecast by KLWX
Issued 10/20/2026 4:58 AM America/New_York.
Valid through 10/20/2026 7:00 PM America/New_York.
fzus51 klwx 200858
cwflwx
expires:202610202300;;876724
coastal waters forecast
national weather service baltimore md/washington dc
457 am edt tue oct 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.
anz537-202300-
tidal potomac from cobb island to smith point-
457 am edt tue oct 20 2026
...small craft advisory in effect through late tonight...
.rest of the overnight...n winds 15 kt with gusts to 20 kt. waves
2 ft.
.today...n winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
.tonight...n winds 15 to 20 kt with gusts to 30 kt. waves 3 ft.
.wed...n winds 15 to 20 kt with gusts to 25 kt. waves 2 to 3 ft.
.wed night...n winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.thu...n winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.thu night...n winds 15 to 20 kt with gusts to 25 kt. waves 2 to
3 ft.
.fri...n winds 15 to 20 kt...becoming ne 5 to 10 kt. waves 2 to
3 ft.
.sat...ne winds 5 to 10 kt. waves 1 to 2 ft.
$$
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