(1/7)
Latest Coastal Waters Forecast by KLWX
Issued 8/21/2026 1:37 PM America/New_York.
Valid through 8/22/2026 4:00 AM America/New_York.
fzus51 klwx 211737
cwflwx
expires:202608220800;;117642
coastal waters forecast
national weather service baltimore md/washington dc
137 pm edt fri aug 21 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.
anz531-220800-
chesapeake bay from pooles island to sandy point-
137 pm edt fri aug 21 2026
.this afternoon...ne winds 5 kt. waves less than 1 ft.
.tonight...se winds around 5 kt. waves flat. scattered showers.
.sat...e winds 5 to 10 kt. waves 1 ft. widespread showers.
.sat night...se winds 5 to 10 kt. waves 1 ft. scattered showers.
.sun...w winds 5 to 10 kt. waves 1 ft.
.sun night...nw winds 5 to 10 kt. waves 1 ft.
.mon...nw winds 5 to 10 kt. waves 1 ft.
.tue...nw winds 5 to 10 kt...becoming sw. waves 1 ft or less.
$$
(2/7)
Latest Coastal Waters Forecast by KLWX
Issued 8/21/2026 1:37 PM America/New_York.
Valid through 8/22/2026 4:00 AM America/New_York.
fzus51 klwx 211737
cwflwx
expires:202608220800;;117645
coastal waters forecast
national weather service baltimore md/washington dc
137 pm edt fri aug 21 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz532-220800-
chesapeake bay from sandy point to north beach-
137 pm edt fri aug 21 2026
.this afternoon...ne winds 5 kt. waves less than 1 ft.
.tonight...e winds around 5 kt. waves 1 ft. numerous showers.
.sat...e winds 5 to 10 kt. waves 1 ft. widespread showers.
.sat night...se winds 5 to 10 kt. waves 1 ft. scattered showers.
.sun...w winds 5 to 10 kt. waves 1 ft.
.sun night...nw winds 5 to 10 kt. waves 1 ft.
.mon...nw winds 5 to 10 kt. waves 1 ft.
.tue...nw winds 5 to 10 kt...becoming s. waves 1 ft.
$$
(3/7)
Latest Coastal Waters Forecast by KLWX
Issued 8/21/2026 1:37 PM America/New_York.
Valid through 8/22/2026 4:00 AM America/New_York.
fzus51 klwx 211737
cwflwx
expires:202608220800;;117647
coastal waters forecast
national weather service baltimore md/washington dc
137 pm edt fri aug 21 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.
anz533-220800-
chesapeake bay from north beach to drum point-
137 pm edt fri aug 21 2026
.this afternoon...n winds 5 to 10 kt. waves 1 ft.
.tonight...e winds around 5 kt. waves 1 ft. numerous showers.
.sat...e winds 5 to 10 kt. waves 1 ft. widespread showers.
.sat night...se winds 5 kt. waves less than 1 ft. scattered showers.
.sun...w winds 5 to 10 kt. waves 1 ft.
.sun night...nw winds 5 to 10 kt. waves 1 ft.
.mon...nw winds 5 to 10 kt. waves 1 ft.
.tue...nw winds 5 to 10 kt...becoming s. waves 1 ft.
$$
(4/7)
Latest Coastal Waters Forecast by KLWX
Issued 8/21/2026 1:37 PM America/New_York.
Valid through 8/22/2026 4:00 AM America/New_York.
fzus51 klwx 211737
cwflwx
expires:202608220800;;117650
coastal waters forecast
national weather service baltimore md/washington dc
137 pm edt fri aug 21 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz534-220800-
chesapeake bay from drum point to smith point-
137 pm edt fri aug 21 2026
.this afternoon...n winds 5 to 10 kt. waves 1 ft.
.tonight...e winds 5 to 10 kt. waves 1 ft. numerous showers.
.sat...e winds 5 to 10 kt. waves 2 ft. widespread showers.
.sat night...se winds 5 to 10 kt...becoming sw after midnight. waves
1 ft. numerous showers.
.sun...w winds 5 to 10 kt. waves 1 ft.
.sun night...nw winds 5 to 10 kt. waves 1 ft.
.mon...nw winds 5 to 10 kt. waves 1 ft.
.tue...n winds 5 to 10 kt...becoming se. waves 1 ft.
$$
(5/7)
Latest Coastal Waters Forecast by KLWX
Issued 8/21/2026 1:37 PM America/New_York.
Valid through 8/22/2026 4:00 AM America/New_York.
fzus51 klwx 211737
cwflwx
expires:202608220800;;117638
coastal waters forecast
national weather service baltimore md/washington dc
137 pm edt fri aug 21 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.
anz535-220800-
tidal potomac from key bridge to indian head-
137 pm edt fri aug 21 2026
.this afternoon...ne winds 5 kt. waves less than 1 ft.
.tonight...e winds around 5 kt. waves 1 ft or less. widespread
showers.
.sat...e winds around 5 kt. waves 1 ft. widespread showers. areas of
fog.
.sat night...se winds around 5 kt. waves 1 ft or less. scattered
showers.
.sun...w winds 5 to 10 kt. waves 1 ft.
.sun night...nw winds 5 to 10 kt. waves 1 ft.
.mon...nw winds around 5 kt. waves 1 ft.
.tue...sw winds around 5 kt. waves 1 ft or less.
$$
(6/7)
Latest Coastal Waters Forecast by KLWX
Issued 8/21/2026 1:37 PM America/New_York.
Valid through 8/22/2026 4:00 AM America/New_York.
fzus51 klwx 211737
cwflwx
expires:202608220800;;117639
coastal waters forecast
national weather service baltimore md/washington dc
137 pm edt fri aug 21 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz536-220800-
tidal potomac from indian head to cobb island-
137 pm edt fri aug 21 2026
.this afternoon...ne winds 5 kt. waves less than 1 ft.
.tonight...se winds around 5 kt. waves 1 ft. widespread showers.
.sat...e winds around 5 kt. waves 1 ft. widespread showers. areas of
fog.
.sat night...se winds around 5 kt. waves 1 ft. scattered showers.
.sun...w winds around 5 kt. waves 1 ft.
.sun night...nw winds around 5 kt. waves 1 ft.
.mon...nw winds around 5 kt. waves 1 ft.
.tue...sw winds around 5 kt. waves 1 ft.
$$
(7/7)
Latest Coastal Waters Forecast by KLWX
Issued 8/21/2026 1:37 PM America/New_York.
Valid through 8/22/2026 4:00 AM America/New_York.
fzus51 klwx 211737
cwflwx
expires:202608220800;;117640
coastal waters forecast
national weather service baltimore md/washington dc
137 pm edt fri aug 21 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.
anz537-220800-
tidal potomac from cobb island to smith point-
137 pm edt fri aug 21 2026
.this afternoon...ne winds 5 kt. waves less than 1 ft.
.tonight...se winds 5 kt. waves less than 1 ft. widespread showers.
.sat...e winds 5 to 10 kt. waves 1 ft. widespread showers.
.sat night...s winds around 5 kt. waves 1 ft. numerous showers.
.sun...w winds 5 kt. waves less than 1 ft.
.sun night...nw winds 5 to 10 kt. waves 1 ft.
.mon...nw winds 5 to 10 kt. waves 1 ft or less.
.tue...ne winds around 5 kt. waves 1 ft or less.
$$
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