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(1/7)
Latest Coastal Waters Forecast by KLWX
Issued 1/20/2026 6:58 PM America/New_York.
Valid through 1/21/2026 4:00 AM America/New_York.
fzus51 klwx 202358
cwflwx
expires:202601210900;;239229
coastal waters forecast
national weather service baltimore md/washington dc
657 pm est tue jan 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.
anz531-210900-
chesapeake bay from pooles island to sandy point-
657 pm est tue jan 20 2026
.tonight...nw winds 10 to 15 kt...becoming ne 5 kt after midnight.
waves 1 to 2 ft...subsiding to flat late.
.wed...s winds 15 to 20 kt with gusts to 25 kt. waves 1 ft...
building to 3 ft in the afternoon.
.wed night...sw winds 15 to 20 kt. waves 2 to 3 ft.
.thu...w winds 10 kt. waves 1 ft.
.thu night...nw winds 5 to 10 kt. waves 1 ft.
.fri...nw winds 10 to 15 kt. waves 1 to 2 ft.
.fri night...nw winds 20 to 25 kt. waves 3 ft.
.sat...n winds 15 to 20 kt...becoming ne 10 to 15 kt. waves 1 to
2 ft. a chance of snow in the afternoon. snow through the night.
.sun...n winds 10 to 15 kt. waves 1 to 2 ft. snow through the day,
then a chance of snow through the night.
$$
(2/7)
Latest Coastal Waters Forecast by KLWX
Issued 1/20/2026 6:58 PM America/New_York.
Valid through 1/21/2026 4:00 AM America/New_York.
fzus51 klwx 202358
cwflwx
expires:202601210900;;239232
coastal waters forecast
national weather service baltimore md/washington dc
657 pm est tue jan 20 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz532-210900-
chesapeake bay from sandy point to north beach-
657 pm est tue jan 20 2026
.tonight...n winds 5 to 10 kt...becoming se late. waves 1 ft or
less.
.wed...se winds 10 to 15 kt with gusts to 20 kt... becoming s 15 to
20 kt with gusts to 25 kt in the afternoon. waves 2 to 3 ft.
.wed night...sw winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
.thu...w winds 10 to 15 kt. waves 1 to 2 ft.
.thu night...nw winds 5 to 10 kt. waves 1 ft.
.fri...nw winds 10 to 15 kt. waves 1 ft.
.fri night...nw winds 20 to 25 kt. waves 3 ft.
.sat...n winds 15 to 20 kt...becoming ne after midnight. waves 2 to
3 ft. a chance of snow in the afternoon. snow through the night.
.sun...n winds 15 to 20 kt. waves 2 ft. snow through the day, then a
chance of snow through the night.
$$
(3/7)
Latest Coastal Waters Forecast by KLWX
Issued 1/20/2026 6:58 PM America/New_York.
Valid through 1/21/2026 4:00 AM America/New_York.
fzus51 klwx 202358
cwflwx
expires:202601210900;;239234
coastal waters forecast
national weather service baltimore md/washington dc
657 pm est tue jan 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.
anz533-210900-
chesapeake bay from north beach to drum point-
657 pm est tue jan 20 2026
.tonight...n winds 5 to 10 kt...becoming e late. waves 1 ft.
.wed...se winds 10 to 15 kt...becoming s 15 to 20 kt in the
afternoon. waves 2 to 3 ft.
.wed night...sw winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
.thu...sw winds 10 to 15 kt. waves 1 to 2 ft.
.thu night...nw winds 5 kt. waves less than 1 ft.
.fri...n winds 10 to 15 kt. waves 1 to 2 ft.
.fri night...n winds 20 to 25 kt. waves 3 ft.
.sat...n winds 20 to 25 kt...becoming ne 15 to 20 kt. waves 4 ft...
subsiding to 2 to 3 ft. a chance of snow in the afternoon. snow
through the night.
.sun...n winds 15 to 20 kt. waves 2 to 3 ft. snow through the day,
then a chance of snow through the night.
$$
(4/7)
Latest Coastal Waters Forecast by KLWX
Issued 1/20/2026 6:58 PM America/New_York.
Valid through 1/21/2026 4:00 AM America/New_York.
fzus51 klwx 202358
cwflwx
expires:202601210900;;239237
coastal waters forecast
national weather service baltimore md/washington dc
657 pm est tue jan 20 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz534-210900-
chesapeake bay from drum point to smith point-
657 pm est tue jan 20 2026
.tonight...n winds 5 to 10 kt...becoming e after midnight. waves
1 ft.
.wed...se winds 10 to 15 kt...becoming s 15 to 20 kt in the
afternoon. waves 1 ft...building to 3 ft in the afternoon.
.wed night...sw winds 15 to 20 kt. waves 3 ft.
.thu...sw winds 10 to 15 kt. waves 2 ft.
.thu night...w winds 5 kt...becoming n after midnight. waves 1 ft.
.fri...n winds 5 to 10 kt. waves 1 ft. a chance of snow.
.fri night...n winds 20 to 25 kt. waves 3 ft. a chance of snow.
.sat...n winds 20 to 25 kt...becoming ne. waves 3 ft. a chance of
snow through the day, then snow through the night.
.sun...n winds 20 to 25 kt. waves 3 ft. snow through the day, then a
chance of snow through the night.
$$
(5/7)
Latest Coastal Waters Forecast by KLWX
Issued 1/20/2026 6:58 PM America/New_York.
Valid through 1/21/2026 4:00 AM America/New_York.
fzus51 klwx 202358
cwflwx
expires:202601210900;;239225
coastal waters forecast
national weather service baltimore md/washington dc
657 pm est tue jan 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.
anz535-210900-
tidal potomac from key bridge to indian head-
657 pm est tue jan 20 2026
.tonight...ne winds around 5 kt. waves 1 ft or less.
.wed...s winds 10 to 15 kt with gusts to 25 kt. waves 1 ft.
.wed night...sw winds 10 to 15 kt with gusts to 20 kt. waves 1 ft.
.thu...w winds 5 to 10 kt with gusts to 20 kt. waves 1 ft.
.thu night...nw winds around 5 kt. waves 1 ft.
.fri...nw winds 5 to 10 kt. waves 1 ft.
.fri night...nw winds 10 to 15 kt with gusts to 20 kt. waves 1 ft.
.sat...n winds 10 to 15 kt...becoming ne 5 to 10 kt. waves 1 ft. a
chance of snow through the day, then snow through the night.
.sun...n winds 5 to 10 kt. waves 1 ft. snow through the day, then a
chance of snow through the night.
$$
(6/7)
Latest Coastal Waters Forecast by KLWX
Issued 1/20/2026 6:58 PM America/New_York.
Valid through 1/21/2026 4:00 AM America/New_York.
fzus51 klwx 202358
cwflwx
expires:202601210900;;239226
coastal waters forecast
national weather service baltimore md/washington dc
657 pm est tue jan 20 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz536-210900-
tidal potomac from indian head to cobb island-
657 pm est tue jan 20 2026
.tonight...ne winds 5 kt. waves less than 1 ft.
.wed...s winds 10 to 15 kt with gusts to 20 kt... becoming 15 kt
with gusts to 25 kt late. waves 1 to 2 ft.
.wed night...sw winds 10 to 15 kt with gusts to 20 kt. waves 1 ft.
.thu...sw winds 5 to 10 kt. waves 1 ft.
.thu night...nw winds around 5 kt. waves 1 ft.
.fri...n winds 5 to 10 kt. waves 1 ft.
.fri night...n winds 15 to 20 kt. waves 2 ft.
.sat...n winds 15 to 20 kt...becoming ne 10 to 15 kt. waves 1 ft. a
chance of snow through the day, then snow through the night.
.sun...n winds 10 to 15 kt. waves 1 ft. snow through the day, then a
chance of snow through the night.
$$
(7/7)
Latest Coastal Waters Forecast by KLWX
Issued 1/20/2026 6:58 PM America/New_York.
Valid through 1/21/2026 4:00 AM America/New_York.
fzus51 klwx 202358
cwflwx
expires:202601210900;;239227
coastal waters forecast
national weather service baltimore md/washington dc
657 pm est tue jan 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.
anz537-210900-
tidal potomac from cobb island to smith point-
657 pm est tue jan 20 2026
.tonight...ne winds 5 kt. waves less than 1 ft.
.wed...s winds 10 to 15 kt with gusts to 20 kt... becoming 15 kt
with gusts to 20 kt late. waves 1 to 2 ft.
.wed night...sw winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.thu...sw winds 10 to 15 kt. waves 1 ft.
.thu night...nw winds 5 kt. waves less than 1 ft.
.fri...n winds 5 to 10 kt. waves 1 ft. a chance of snow.
.fri night...n winds 20 to 25 kt. waves 2 to 3 ft. a chance of snow.
.sat...n winds 15 to 20 kt. waves 2 to 3 ft. a chance of snow
through the day, then snow through the night.
.sun...n winds 15 to 20 kt. waves 2 to 3 ft. snow through the day,
then a chance of snow through the night.
$$
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