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(1/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/31/2026 4:57 PM America/New_York.
Valid through 8/1/2026 4:00 AM America/New_York.
fzus51 klwx 312057
cwflwx
expires:202608010800;;408063
coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt fri jul 31 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.
anz531-010800-
chesapeake bay from pooles island to sandy point-
457 pm edt fri jul 31 2026
...small craft advisory in effect from saturday afternoon through
late saturday night...
.rest of this afternoon...s winds 5 kt. |* insufficient grids for
waveheight during (jul 31 26 20:00:00 gmt, jul
31 26 22:00:00 gmt)*|.
.tonight...s winds around 5 kt. waves 1 ft or less.
.sat...s winds 5 to 10 kt. gusts up to 20 kt in the afternoon. waves
1 ft or less.
.sat night...s winds 15 to 20 kt with gusts to 25 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 with gusts to 20 kt. waves 1 to
2 ft. showers with a chance of tstms.
.mon...s winds 5 to 10 kt. waves 1 to 2 ft. showers. a chance of
tstms through the night, then a chance of showers after midnight.
.tue...s winds 5 to 10 kt. waves 1 ft. a chance of showers. a chance
of tstms through the night.
winds and waves higher and visibilities lower in and near tstms.
$$
(2/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/31/2026 4:57 PM America/New_York.
Valid through 8/1/2026 4:00 AM America/New_York.
fzus51 klwx 312057
cwflwx
expires:202608010800;;408066
coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt fri jul 31 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz532-010800-
chesapeake bay from sandy point to north beach-
457 pm edt fri jul 31 2026
...small craft advisory in effect from saturday afternoon through
late saturday night...
.rest of this afternoon...se winds 5 kt. |* insufficient grids for
waveheight during (jul 31 26 20:00:00 gmt, jul
31 26 22:00:00 gmt)*|.
.tonight...s winds 5 to 10 kt. waves 1 ft or less.
.sat...s winds 10 to 15 kt with gusts to 25 kt. waves 1 to 2 ft.
.sat night...s winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
.sun...s winds 10 to 15 kt. gusts up to 25 kt in the afternoon.
waves 2 to 3 ft.
.sun night...s winds 10 to 15 kt. gusts up to 25 kt in the evening.
waves 2 to 3 ft. showers with a chance of tstms.
.mon...s winds 5 to 10 kt. waves 1 to 2 ft. showers. a chance of
tstms through the night, then a chance of showers after midnight.
.tue...s winds 5 to 10 kt. waves 1 ft. a chance of tstms through the
night. a chance of showers.
winds and waves higher and visibilities lower in and near tstms.
$$
(3/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/31/2026 4:57 PM America/New_York.
Valid through 8/1/2026 4:00 AM America/New_York.
fzus51 klwx 312057
cwflwx
expires:202608010800;;408068
coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt fri jul 31 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.
anz533-010800-
chesapeake bay from north beach to drum point-
457 pm edt fri jul 31 2026
...small craft advisory in effect from saturday afternoon through
late saturday night...
.rest of this afternoon...se winds 5 kt. |* insufficient grids for
waveheight during (jul 31 26 20:00:00 gmt, jul
31 26 22:00:00 gmt)*|.
.tonight...s winds 5 to 10 kt. waves 1 ft.
.sat...s winds 10 to 15 kt...becoming se 15 to 20 kt with gusts to
25 kt late. waves 1 to 2 ft.
.sat night...s winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
.sun...s winds 15 to 20 kt. gusts up to 25 kt in the afternoon.
waves 2 to 3 ft. a chance of showers.
.sun night...s winds 15 to 20 kt. gusts up to 25 kt in the evening.
waves 2 to 3 ft. showers with a chance of tstms.
.mon...s winds 10 to 15 kt. waves 1 to 2 ft. showers. a chance of
tstms through the night, then a chance of showers after midnight.
.tue...s winds 5 to 10 kt. waves 1 ft. a chance of showers. a chance
of tstms through the night.
winds and waves higher and visibilities lower in and near tstms.
$$
(4/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/31/2026 4:57 PM America/New_York.
Valid through 8/1/2026 4:00 AM America/New_York.
fzus51 klwx 312057
cwflwx
expires:202608010800;;408071
coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt fri jul 31 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz534-010800-
chesapeake bay from drum point to smith point-
457 pm edt fri jul 31 2026
...small craft advisory in effect from saturday afternoon through
late saturday night...
.rest of this afternoon...s winds 5 kt. |* insufficient grids for
waveheight during (jul 31 26 20:00:00 gmt, jul
31 26 22:00:00 gmt)*|.
.tonight...s winds 5 to 10 kt. waves 1 ft.
.sat...s winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft.
.sat night...s winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
.sun...s winds 15 to 20 kt with gusts to 25 kt. waves 2 to 3 ft. a
chance of showers.
.sun night...s winds 10 to 15 kt with gusts to 25 kt. waves 3 ft.
showers with a chance of tstms.
.mon...s winds 10 to 15 kt. waves 2 ft. showers. a chance of tstms.
a chance of showers after midnight.
.tue...s winds 5 to 10 kt. waves 1 to 2 ft. a chance of showers. a
chance of tstms through the night.
winds and waves higher and visibilities lower in and near tstms.
$$
(5/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/31/2026 4:57 PM America/New_York.
Valid through 8/1/2026 4:00 AM America/New_York.
fzus51 klwx 312057
cwflwx
expires:202608010800;;408059
coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt fri jul 31 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.
anz535-010800-
tidal potomac from key bridge to indian head-
457 pm edt fri jul 31 2026
...small craft advisory in effect from saturday afternoon through
saturday evening...
.rest of this afternoon...w winds 5 kt. |* insufficient grids for
waveheight during (jul 31 26 20:00:00 gmt, jul
31 26 22:00:00 gmt)*|.
.tonight...s winds around 5 kt. waves 1 ft.
.sat...s winds 5 to 10 kt. gusts up to 20 kt in the afternoon. waves
1 ft.
.sat night...s winds 5 to 10 kt with gusts to 20 kt. waves 1 ft.
.sun...s winds 5 to 10 kt with gusts to 20 kt. waves 1 ft. a chance
of showers.
.sun night...s winds 5 to 10 kt. gusts up to 20 kt in the evening.
waves 1 ft. showers with a chance of tstms.
.mon...s winds 5 to 10 kt. waves 1 ft. showers. a chance of tstms
through the night, then a chance of showers after midnight.
.tue...s winds around 5 kt. waves 1 ft. showers likely with a chance
of tstms through the night. a chance of showers after midnight.
winds and waves higher and visibilities lower in and near tstms.
$$
(6/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/31/2026 4:57 PM America/New_York.
Valid through 8/1/2026 4:00 AM America/New_York.
fzus51 klwx 312057
cwflwx
expires:202608010800;;408060
coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt fri jul 31 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz536-010800-
tidal potomac from indian head to cobb island-
457 pm edt fri jul 31 2026
...small craft advisory in effect from saturday afternoon through
saturday evening...
.rest of this afternoon...s winds 5 kt. |* insufficient grids for
waveheight during (jul 31 26 20:00:00 gmt, jul
31 26 22:00:00 gmt)*|.
.tonight...s winds around 5 kt. waves 1 ft.
.sat...s winds 5 to 10 kt. waves 1 ft.
.sat night...se winds 10 to 15 kt with gusts to 20 kt. waves 1 ft.
.sun...s winds 10 to 15 kt with gusts to 20 kt. waves 1 ft. a chance
of showers.
.sun night...s winds 10 to 15 kt. gusts up to 20 kt in the evening.
waves 1 ft. showers with a chance of tstms.
.mon...s winds 5 to 10 kt. waves 1 ft. showers. a chance of tstms
through the night, then a chance of showers after midnight.
.tue...s winds around 5 kt. waves 1 ft. showers likely with a chance
of tstms through the night. a chance of showers after midnight.
winds and waves higher and visibilities lower in and near tstms.
$$
(7/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/31/2026 4:57 PM America/New_York.
Valid through 8/1/2026 4:00 AM America/New_York.
fzus51 klwx 312057
cwflwx
expires:202608010800;;408061
coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt fri jul 31 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.
anz537-010800-
tidal potomac from cobb island to smith point-
457 pm edt fri jul 31 2026
...small craft advisory in effect from saturday afternoon through
late saturday night...
.rest of this afternoon...se winds 5 kt. |* insufficient grids for
waveheight during (jul 31 26 20:00:00 gmt, jul
31 26 22:00:00 gmt)*|.
.tonight...s winds 5 to 10 kt. waves 1 ft.
.sat...s winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft.
.sat night...s winds 15 to 20 kt with gusts to 25 kt. waves 2 ft.
.sun...s winds 5 to 10 kt...becoming se 15 to 20 kt in the
afternoon. waves 1 ft...building to 3 ft in the afternoon. a chance
of showers.
.sun night...s winds 10 to 15 kt with gusts to 20 kt. waves 1 to
2 ft. showers with a chance of tstms.
.mon...s winds 5 to 10 kt. waves 1 ft. showers. a chance of tstms
through the night, then a chance of showers after midnight.
.tue...s winds 5 to 10 kt. waves 1 ft. showers likely with a chance
of tstms through the night.
winds and waves higher and visibilities lower in and near tstms.
$$
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