(1/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/31/2026 4:57 AM America/New_York.
Valid through 7/31/2026 7:00 PM America/New_York.
fzus51 klwx 310857
cwflwx
expires:202607312300;;380738
coastal waters forecast
national weather service baltimore md/washington dc
457 am 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.
anz531-312300-
chesapeake bay from pooles island to sandy point-
457 am edt fri jul 31 2026
.rest of the overnight...n winds 5 kt. waves flat.
.today...n winds around 5 kt. waves 1 ft or less.
.tonight...s winds around 5 kt. waves 1 ft or less.
.sat...s winds 5 to 10 kt. waves 1 to 2 ft.
.sat night...s winds 10 to 15 kt with gusts to 20 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 2 ft.
showers likely with a chance of tstms.
.mon...s winds 5 to 10 kt. waves 1 to 2 ft. a chance of tstms.
showers likely .
.tue...se winds 5 kt. waves less than 1 ft. a chance of showers and
tstms through the night.
winds and waves higher and visibilities lower in and near tstms.
$$
(2/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/31/2026 4:57 AM America/New_York.
Valid through 7/31/2026 7:00 PM America/New_York.
fzus51 klwx 310857
cwflwx
expires:202607312300;;380741
coastal waters forecast
national weather service baltimore md/washington dc
457 am edt fri jul 31 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz532-312300-
chesapeake bay from sandy point to north beach-
457 am edt fri jul 31 2026
.rest of the overnight...n winds 5 kt. waves flat.
.today...ne winds 5 kt. waves less than 1 ft.
.tonight...s winds 5 to 10 kt. waves 1 ft.
.sat...s winds 5 kt...increasing to 10 to 15 kt with gusts to 20 kt
in the afternoon. waves 1 ft...building to 3 ft in the afternoon.
.sat night...s winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
.sun...s winds 10 to 15 kt. gusts up to 25 kt in the afternoon.
waves 2 to 3 ft.
.sun night...s winds 10 to 15 kt with gusts to 20 kt. waves 2 to
3 ft. showers likely with a chance of tstms.
.mon...s winds 5 to 10 kt. waves 1 to 2 ft. a chance of tstms.
showers likely .
.tue...se winds 5 to 10 kt. waves 1 ft. a chance of showers and
tstms through the night.
winds and waves higher and visibilities lower in and near tstms.
$$
(3/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/31/2026 4:57 AM America/New_York.
Valid through 7/31/2026 7:00 PM America/New_York.
fzus51 klwx 310857
cwflwx
expires:202607312300;;380743
coastal waters forecast
national weather service baltimore md/washington dc
457 am 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.
anz533-312300-
chesapeake bay from north beach to drum point-
457 am edt fri jul 31 2026
.rest of the overnight...nw winds 5 kt. waves flat.
.today...n winds 5 kt. waves less than 1 ft.
.tonight...s winds 5 to 10 kt. waves 1 ft.
.sat...s winds 5 kt...becoming se 15 to 20 kt with gusts to 25 kt in
the afternoon. waves 1 ft...building to 3 ft in the afternoon.
.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.
.sun night...s winds 15 to 20 kt with gusts to 25 kt. waves 2 to
3 ft. showers likely with a chance of tstms.
.mon...s winds 10 to 15 kt. waves 1 to 2 ft. a chance of tstms.
showers.
.tue...se 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.
$$
(4/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/31/2026 4:57 AM America/New_York.
Valid through 7/31/2026 7:00 PM America/New_York.
fzus51 klwx 310857
cwflwx
expires:202607312300;;380746
coastal waters forecast
national weather service baltimore md/washington dc
457 am edt fri jul 31 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz534-312300-
chesapeake bay from drum point to smith point-
457 am edt fri jul 31 2026
.rest of the overnight...nw winds 5 kt. waves less than 1 ft.
.today...nw winds around 5 kt. waves 1 ft or less.
.tonight...s winds 5 to 10 kt. waves 1 ft.
.sat...s winds 10 to 15 kt. gusts up to 25 kt in the afternoon.
waves 1 ft...building to 3 ft in the afternoon.
.sat night...s winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
.sun...s winds 10 to 15 kt with gusts to 25 kt. waves 2 to 3 ft.
.sun night...s winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
showers likely with a chance of tstms.
.mon...s winds 10 to 15 kt. waves 2 to 3 ft...subsiding to 1 ft
after midnight. a chance of tstms. showers.
.tue...s winds 5 to 10 kt. waves 1 ft. a chance of tstms. a chance
of showers.
winds and waves higher and visibilities lower in and near tstms.
$$
(5/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/31/2026 4:57 AM America/New_York.
Valid through 7/31/2026 7:00 PM America/New_York.
fzus51 klwx 310857
cwflwx
expires:202607312300;;380734
coastal waters forecast
national weather service baltimore md/washington dc
457 am 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.
anz535-312300-
tidal potomac from key bridge to indian head-
457 am edt fri jul 31 2026
.rest of the overnight...nw winds 5 kt. waves less than 1 ft.
.today...nw winds around 5 kt. waves 1 ft.
.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.
.sun night...s winds 5 to 10 kt with gusts to 20 kt. waves 1 ft.
showers likely with a chance of tstms.
.mon...s winds 5 to 10 kt. waves 1 ft. showers likely with a chance
of tstms.
.tue...se winds around 5 kt. waves 1 ft. a chance of showers and
tstms through the night.
winds and waves higher and visibilities lower in and near tstms.
$$
(6/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/31/2026 4:57 AM America/New_York.
Valid through 7/31/2026 7:00 PM America/New_York.
fzus51 klwx 310857
cwflwx
expires:202607312300;;380735
coastal waters forecast
national weather service baltimore md/washington dc
457 am edt fri jul 31 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz536-312300-
tidal potomac from indian head to cobb island-
457 am edt fri jul 31 2026
.rest of the overnight...nw winds 5 kt. waves less than 1 ft.
.today...nw winds around 5 kt. waves 1 ft.
.tonight...s winds around 5 kt. waves 1 ft.
.sat...s winds 5 to 10 kt. waves 1 ft.
.sat night...s winds 10 to 15 kt with gusts to 20 kt. waves 1 ft.
.sun...s winds 5 to 10 kt. waves 1 ft.
.sun night...s winds 5 to 10 kt. waves 1 ft. showers likely with a
chance of tstms.
.mon...s winds 5 to 10 kt. waves 1 ft. showers likely. a chance of
tstms. a chance of showers after midnight.
.tue...se winds around 5 kt. waves 1 ft. a chance of showers and
tstms through the night.
winds and waves higher and visibilities lower in and near tstms.
$$
(7/7)
Latest Coastal Waters Forecast by KLWX
Issued 7/31/2026 4:57 AM America/New_York.
Valid through 7/31/2026 7:00 PM America/New_York.
fzus51 klwx 310857
cwflwx
expires:202607312300;;380736
coastal waters forecast
national weather service baltimore md/washington dc
457 am 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.
anz537-312300-
tidal potomac from cobb island to smith point-
457 am edt fri jul 31 2026
.rest of the overnight...nw winds 5 kt. waves flat.
.today...n winds around 5 kt. waves flat.
.tonight...s winds 5 to 10 kt. waves 1 ft.
.sat...s winds around 5 kt...becoming se 10 to 15 kt with gusts to
20 kt in the afternoon. waves 1 to 2 ft.
.sat night...s winds 15 to 20 kt. waves 2 ft.
.sun...s winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft.
.sun night...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
showers likely with a chance of tstms.
.mon...s winds 5 to 10 kt. waves 1 ft. showers. a chance of tstms. 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.
$$
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