(1/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/12/2026 4:57 PM America/New_York.
Valid through 7/13/2026 4:00 AM America/New_York.
fzus51 klwx 122057
cwflwx
expires:202607130800;;864458
coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt sun jul 12 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.
anz531-130800-
chesapeake bay from pooles island to sandy point-
457 pm edt sun jul 12 2026
.rest of this afternoon...se winds 10 kt. waves 1 ft.
.tonight...se winds 10 to 15 kt...diminishing to 5 kt late. waves
1 ft.
.mon...se winds 5 kt. waves less than 1 ft.
.mon night...s winds 5 to 10 kt. waves 1 ft.
.tue...sw winds 5 to 10 kt. waves 1 ft or less.
.tue night...sw winds 10 kt. waves 1 ft.
.wed...w winds 5 to 10 kt. waves 1 ft.
.thu...nw winds 5 to 10 kt. waves 1 ft.
$$
(2/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/12/2026 4:57 PM America/New_York.
Valid through 7/13/2026 4:00 AM America/New_York.
fzus51 klwx 122057
cwflwx
expires:202607130800;;864461
coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt sun jul 12 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz532-130800-
chesapeake bay from sandy point to north beach-
457 pm edt sun jul 12 2026
...small craft advisory in effect until midnight edt tonight...
.rest of this afternoon...se winds 15 kt with gusts to 20 kt. waves
2 ft.
.tonight...se winds 10 to 15 kt with gusts to 20 kt. waves 1 to
2 ft.
.mon...se winds 5 to 10 kt. waves 1 ft.
.mon night...s winds 5 to 10 kt. waves 1 ft.
.tue...sw winds 5 to 10 kt. waves 1 ft or less.
.tue night...sw winds 10 kt. waves 1 ft.
.wed...sw winds 5 to 10 kt. waves 1 to 2 ft.
.thu...nw winds 5 to 10 kt. waves 1 ft.
$$
(3/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/12/2026 4:57 PM America/New_York.
Valid through 7/13/2026 4:00 AM America/New_York.
fzus51 klwx 122057
cwflwx
expires:202607130800;;864463
coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt sun jul 12 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.
anz533-130800-
chesapeake bay from north beach to drum point-
457 pm edt sun jul 12 2026
...small craft advisory in effect until midnight edt tonight...
.rest of this afternoon...se winds 15 kt with gusts to 20 kt. waves
2 ft.
.tonight...se winds 10 to 15 kt with gusts to 20 kt. waves 1 to
2 ft.
.mon...se winds 5 to 10 kt. waves 1 ft.
.mon night...s winds 5 to 10 kt. waves 1 ft.
.tue...nw winds around 5 kt...becoming s in the afternoon. waves
1 ft or less.
.tue night...sw winds 10 kt. waves 1 ft.
.wed...sw winds 5 to 10 kt. waves 1 ft.
.thu...nw winds 5 to 10 kt. waves 1 ft.
$$
(4/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/12/2026 4:57 PM America/New_York.
Valid through 7/13/2026 4:00 AM America/New_York.
fzus51 klwx 122057
cwflwx
expires:202607130800;;864466
coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt sun jul 12 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz534-130800-
chesapeake bay from drum point to smith point-
457 pm edt sun jul 12 2026
...small craft advisory in effect through late tonight...
.rest of this afternoon...e winds 15 kt with gusts to 25 kt. waves
2 ft.
.tonight...e winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.mon...e winds 10 to 15 kt. waves 2 ft.
.mon night...se winds 5 to 10 kt. waves 1 to 2 ft.
.tue...se winds 5 to 10 kt. waves 1 ft.
.tue night...sw winds 5 to 10 kt. waves 1 ft.
.wed...sw winds 10 to 15 kt. waves 1 to 2 ft.
.thu...w winds 5 to 10 kt...becoming nw. waves 1 ft.
$$
(5/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/12/2026 4:57 PM America/New_York.
Valid through 7/13/2026 4:00 AM America/New_York.
fzus51 klwx 122057
cwflwx
expires:202607130800;;864454
coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt sun jul 12 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.
anz535-130800-
tidal potomac from key bridge to indian head-
457 pm edt sun jul 12 2026
.rest of this afternoon...se winds 10 kt. waves 1 ft. a chance of
showers and tstms.
.tonight...e winds around 5 kt. waves 1 ft.
.mon...e winds around 5 kt. waves 1 ft.
.mon night...s winds around 5 kt. waves 1 ft or less.
.tue...sw winds around 5 kt. waves 1 ft or less.
.tue night...sw winds 5 kt. waves less than 1 ft.
.wed...w winds 5 to 10 kt. waves 1 ft.
.thu...nw winds around 5 kt. waves 1 ft.
winds and waves higher and visibilities lower in and near tstms.
$$
(6/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/12/2026 4:57 PM America/New_York.
Valid through 7/13/2026 4:00 AM America/New_York.
fzus51 klwx 122057
cwflwx
expires:202607130800;;864455
coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt sun jul 12 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz536-130800-
tidal potomac from indian head to cobb island-
457 pm edt sun jul 12 2026
...small craft advisory in effect until midnight edt tonight...
.rest of this afternoon...se winds 10 kt with gusts to 20 kt. waves
1 ft. showers likely with a chance of tstms.
.tonight...se winds 10 to 15 kt with gusts to 20 kt... becoming e
5 kt late. waves 1 ft.
.mon...e winds 5 to 10 kt. waves 1 ft.
.mon night...se winds 5 to 10 kt. waves 1 ft or less.
.tue...e winds around 5 kt. waves 1 ft or less.
.tue night...sw winds around 5 kt. waves 1 ft.
.wed...sw winds 5 to 10 kt. waves 1 ft.
.thu...nw winds around 5 kt. waves 1 ft.
winds and waves higher and visibilities lower in and near tstms.
$$
(7/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/12/2026 4:57 PM America/New_York.
Valid through 7/13/2026 4:00 AM America/New_York.
fzus51 klwx 122057
cwflwx
expires:202607130800;;864456
coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt sun jul 12 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.
anz537-130800-
tidal potomac from cobb island to smith point-
457 pm edt sun jul 12 2026
...small craft advisory in effect through late tonight...
.rest of this afternoon...se winds 15 kt with gusts to 20 kt. waves
2 ft. a slight chance of showers and tstms.
.tonight...e winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.mon...e winds 10 kt. waves 2 ft.
.mon night...se winds 5 to 10 kt. waves 1 ft.
.tue...e winds around 5 kt. waves flat.
.tue night...sw winds 5 to 10 kt. waves 1 ft.
.wed...sw winds 5 to 10 kt. waves 1 ft.
.thu...nw winds 5 kt. waves less than 1 ft.
winds and waves higher and visibilities lower in and near tstms.
$$
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