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(1/4)
Latest Coastal Waters Forecast by KLWX
Issued 5/20/2026 1:07 PM America/New_York.
Valid through 5/21/2026 4:00 AM America/New_York.
fzus51 klwx 201707
cwflwx
expires:202605210800;;354369
coastal waters forecast
national weather service baltimore md/washington dc
107 pm edt wed may 20 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.
anz530-210800-
chesapeake bay north of pooles island-
107 pm edt wed may 20 2026
...severe thunderstorm watch 234 in effect until 8 pm edt this
evening...
...small craft advisory in effect from thursday morning through
thursday afternoon...
.this afternoon...sw winds 10 kt. waves 1 ft. widespread showers and
tstms.
.tonight...n winds 5 to 10 kt. waves 1 ft. widespread showers and
scattered tstms.
.thu...ne winds 10 to 15 kt with gusts to 20 kt. waves 1 ft.
showers.
.thu night...ne winds 5 to 10 kt. waves 1 ft.
.fri...e winds 10 to 15 kt with gusts to 20 kt. waves 1 ft. showers
likely.
.fri night...e winds 10 to 15 kt with gusts to 20 kt. waves 1 ft.
showers.
.sat...e winds 10 to 15 kt. waves 1 ft. showers.
.sun...ne winds around 5 kt. waves 1 ft or less. showers in the
morning. a chance of showers.
winds and waves higher and visibilities lower in and near tstms.
$$
(2/4)
Latest Coastal Waters Forecast by KLWX
Issued 5/20/2026 1:07 PM America/New_York.
Valid through 5/21/2026 4:00 AM America/New_York.
fzus51 klwx 201707
cwflwx
expires:202605210800;;354370
coastal waters forecast
national weather service baltimore md/washington dc
107 pm edt wed may 20 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz531-210800-
chesapeake bay from pooles island to sandy point-
107 pm edt wed may 20 2026
...severe thunderstorm watch 234 in effect until 8 pm edt this
evening...
...small craft advisory in effect from thursday morning through
thursday afternoon...
.this afternoon...s winds 10 kt. waves 1 ft. widespread showers and
tstms.
.tonight...n winds 5 to 10 kt. waves 1 ft. showers likely with
scattered tstms.
.thu...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
showers.
.thu night...ne winds 10 kt. waves 1 ft. a chance of showers.
.fri...e winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. showers
likely.
.fri night...e winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
showers.
.sat...e winds 10 to 15 kt. waves 1 to 2 ft. showers.
.sun...ne winds 5 kt. waves less than 1 ft. showers in the morning.
a chance of showers.
winds and waves higher and visibilities lower in and near tstms.
$$
(3/4)
Latest Coastal Waters Forecast by KLWX
Issued 5/20/2026 1:07 PM America/New_York.
Valid through 5/21/2026 4:00 AM America/New_York.
fzus51 klwx 201707
cwflwx
expires:202605210800;;354373
coastal waters forecast
national weather service baltimore md/washington dc
107 pm edt wed may 20 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.
anz532-210800-
chesapeake bay from sandy point to north beach-
107 pm edt wed may 20 2026
...severe thunderstorm watch 234 in effect until 8 pm edt this
evening...
...small craft advisory in effect from thursday morning through
thursday afternoon...
.this afternoon...s winds 10 kt. waves 1 to 2 ft. isolated showers
and tstms.
.tonight...ne winds 5 to 10 kt. waves 1 to 2 ft. a chance of
showers.
.thu...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
showers.
.thu night...ne winds 10 to 15 kt with gusts to 20 kt. waves 1 to
2 ft. a chance of showers.
.fri...e winds 15 kt with gusts to 20 kt. waves 2 ft. showers
likely.
.fri night...e winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
showers.
.sat...e winds 10 to 15 kt...becoming ne 5 kt after midnight. waves
1 to 2 ft. showers.
.sun...ne winds 5 to 10 kt. waves 1 ft. showers in the morning. a
chance of showers.
winds and waves higher and visibilities lower in and near tstms.
$$
(4/4)
Latest Coastal Waters Forecast by KLWX
Issued 5/20/2026 1:07 PM America/New_York.
Valid through 5/21/2026 4:00 AM America/New_York.
fzus51 klwx 201707
cwflwx
expires:202605210800;;354375
coastal waters forecast
national weather service baltimore md/washington dc
107 pm edt wed may 20 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz533-210800-
chesapeake bay from north beach to drum point-
107 pm edt wed may 20 2026
...small craft advisory in effect from thursday morning through
thursday afternoon...
.this afternoon...s winds 10 kt with gusts to 20 kt. waves 1 to
2 ft. isolated showers and tstms.
.tonight...e winds 5 to 10 kt...becoming ne after midnight. waves
1 to 2 ft. scattered showers.
.thu...ne winds 10 to 15 kt with gusts to 20 kt. waves 3 ft. showers
likely.
.thu night...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
showers likely.
.fri...e winds 15 kt with gusts to 20 kt. waves 2 ft. showers.
.fri night...e winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
showers.
.sat...e winds 10 to 15 kt...becoming ne 5 kt after midnight. waves
1 to 2 ft. showers.
.sun...ne winds 5 kt. waves less than 1 ft. a chance of showers in
the morning, then showers likely through the night. a chance of
showers after midnight.
winds and waves higher and visibilities lower in and near tstms.
$$
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