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(1/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/12/2026 10:57 PM America/New_York.
Valid through 7/13/2026 4:00 AM America/New_York.
fzus51 klwx 130257
cwflwx
expires:202607130800;;876513
coastal waters forecast
national weather service baltimore md/washington dc
1057 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-
1057 pm edt sun jul 12 2026
.rest of tonight...se winds 5 to 10 kt. 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...sw winds 5 to 10 kt. waves 1 ft.
.wed night...sw winds 10 kt...becoming nw after midnight. waves
1 ft.
.thu...nw winds 5 to 10 kt. waves 1 ft.
.fri...nw winds 5 to 10 kt. waves 1 ft. a chance of showers through
the night.
$$
(2/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/12/2026 10:57 PM America/New_York.
Valid through 7/13/2026 4:00 AM America/New_York.
fzus51 klwx 130257
cwflwx
expires:202607130800;;876516
coastal waters forecast
national weather service baltimore md/washington dc
1057 pm edt sun jul 12 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz532-130800-
chesapeake bay from sandy point to north beach-
1057 pm edt sun jul 12 2026
.rest of tonight...se winds 10 kt. waves 1 to 2 ft.
.mon...se winds 5 to 10 kt. waves 1 ft.
.mon night...s winds 5 to 10 kt. waves 1 ft.
.tue...sw winds 5 to 10 kt. waves 1 ft or less.
.tue night...sw winds 10 kt. waves 1 ft.
.wed...sw winds 5 to 10 kt. waves 1 ft.
.wed night...w winds 5 to 10 kt. waves 1 to 2 ft.
.thu...nw winds 5 to 10 kt. waves 1 ft.
.fri...n winds 5 to 10 kt...becoming e after midnight. waves 1 ft. a
chance of showers through the night.
$$
(3/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/12/2026 10:57 PM America/New_York.
Valid through 7/13/2026 4:00 AM America/New_York.
fzus51 klwx 130257
cwflwx
expires:202607130800;;876518
coastal waters forecast
national weather service baltimore md/washington dc
1057 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-
1057 pm edt sun jul 12 2026
.rest of tonight...se winds 10 to 15 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.
.wed night...w winds 5 to 10 kt. waves 1 ft.
.thu...nw winds 5 to 10 kt. waves 1 ft.
.fri...n winds 5 to 10 kt...becoming se. waves 1 ft. a chance of
showers through the night.
$$
(4/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/12/2026 10:57 PM America/New_York.
Valid through 7/13/2026 4:00 AM America/New_York.
fzus51 klwx 130257
cwflwx
expires:202607130800;;876521
coastal waters forecast
national weather service baltimore md/washington dc
1057 pm edt sun jul 12 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz534-130800-
chesapeake bay from drum point to smith point-
1057 pm edt sun jul 12 2026
...small craft advisory in effect until 6 am edt monday...
.rest of tonight...e winds 15 kt with gusts to 20 kt. waves 2 to
3 ft.
.mon...e winds 10 to 15 kt. waves 2 ft.
.mon night...se winds 5 to 10 kt. waves 1 to 2 ft.
.tue...se winds 5 to 10 kt. waves 1 ft.
.tue night...sw winds 5 to 10 kt. waves 1 ft.
.wed...sw winds 5 to 10 kt. waves 1 ft.
.wed night...sw winds 10 to 15 kt...becoming w after midnight. waves
2 ft.
.thu...w winds 5 to 10 kt...becoming nw. waves 1 ft.
.fri...n winds 5 to 10 kt...becoming s. waves 1 ft.
$$
(5/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/12/2026 10:57 PM America/New_York.
Valid through 7/13/2026 4:00 AM America/New_York.
fzus51 klwx 130257
cwflwx
expires:202607130800;;876509
coastal waters forecast
national weather service baltimore md/washington dc
1057 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-
1057 pm edt sun jul 12 2026
.rest of tonight...e winds 5 kt. waves less than 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 around 5 kt. waves 1 ft.
.wed night...w winds 5 to 10 kt. waves 1 ft.
.thu...nw winds around 5 kt. waves 1 ft.
.fri...n winds 5 to 10 kt. waves 1 ft. a chance of showers through
the night.
$$
(6/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/12/2026 10:57 PM America/New_York.
Valid through 7/13/2026 4:00 AM America/New_York.
fzus51 klwx 130257
cwflwx
expires:202607130800;;876510
coastal waters forecast
national weather service baltimore md/washington dc
1057 pm edt sun jul 12 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz536-130800-
tidal potomac from indian head to cobb island-
1057 pm edt sun jul 12 2026
.rest of tonight...e winds 5 to 10 kt. waves 1 ft.
.mon...e winds 5 to 10 kt. waves 1 ft.
.mon night...se winds 5 to 10 kt until early morning... becoming
light. waves 1 ft or less.
.tue...e winds around 5 kt. waves 1 ft or less.
.tue night...sw winds around 5 kt. waves 1 ft.
.wed...sw winds 5 to 10 kt. waves 1 ft.
.wed night...w winds 5 to 10 kt. waves 1 ft.
.thu...nw winds around 5 kt. waves 1 ft.
.fri...nw winds 5 kt. waves less than 1 ft.
$$
(7/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/12/2026 10:57 PM America/New_York.
Valid through 7/13/2026 4:00 AM America/New_York.
fzus51 klwx 130257
cwflwx
expires:202607130800;;876511
coastal waters forecast
national weather service baltimore md/washington dc
1057 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-
1057 pm edt sun jul 12 2026
...small craft advisory in effect until 6 am edt monday...
.rest of tonight...e winds 15 kt with gusts to 20 kt. waves 2 to
3 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.
.wed night...sw winds 5 to 10 kt. waves 1 ft.
.thu...nw winds 5 kt. waves less than 1 ft.
.fri...n winds 5 kt...becoming se. waves 1 ft.
$$
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