(1/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/18/2026 9:48 AM America/New_York.
Valid through 4/18/2026 4:00 PM America/New_York.
fzus51 klwx 181348
cwflwx
expires:202604182000;;582445
coastal waters forecast
national weather service baltimore md/washington dc
948 am edt sat apr 18 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.
anz531-182000-
chesapeake bay from pooles island to sandy point-
948 am edt sat apr 18 2026
...small craft advisory in effect from 2 pm this afternoon to 8 pm
edt this evening...
...small craft advisory in effect from sunday morning through sunday
afternoon...
.rest of today...e winds 5 to 10 kt...becoming se 15 kt with gusts
to 20 kt late. waves 1 to 2 ft.
.tonight...se winds 10 to 15 kt with gusts to 20 kt... becoming ne
5 to 10 kt late. waves 1 to 2 ft. scattered showers.
.sun...nw winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
showers.
.sun night...nw winds 10 to 15 kt...becoming w 5 to 10 kt after
midnight. waves 1 to 2 ft.
.mon...nw winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft.
.mon night...n winds 10 to 15 kt. waves 1 to 2 ft.
.tue...n winds 5 kt...becoming s 10 to 15 kt. waves 1 to 2 ft.
.wed...sw winds 10 to 15 kt...becoming n 5 kt. waves 1 to 2 ft.
$$
(2/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/18/2026 9:48 AM America/New_York.
Valid through 4/18/2026 4:00 PM America/New_York.
fzus51 klwx 181348
cwflwx
expires:202604182000;;582448
coastal waters forecast
national weather service baltimore md/washington dc
948 am edt sat apr 18 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz532-182000-
chesapeake bay from sandy point to north beach-
948 am edt sat apr 18 2026
...small craft advisory in effect from 2 pm this afternoon to 8 pm
edt this evening...
...small craft advisory in effect from sunday morning through sunday
afternoon...
.rest of today...e winds 5 to 10 kt...becoming s 15 kt with gusts to
20 kt late. waves 1 to 2 ft.
.tonight...se winds 10 to 15 kt with gusts to 20 kt... becoming ne
5 to 10 kt late. waves 2 to 3 ft. scattered showers.
.sun...nw winds 15 to 20 kt with gusts to 30 kt. waves 3 ft.
showers.
.sun night...nw winds 10 to 15 kt...becoming w after midnight. waves
1 to 2 ft.
.mon...nw winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft.
.mon night...n winds 10 to 15 kt with gusts to 20 kt. waves 1 to
2 ft.
.tue...n winds 5 to 10 kt...becoming s 10 to 15 kt. waves 1 to 2 ft.
.wed...sw winds 10 to 15 kt...becoming n 5 kt. waves 1 to 2 ft.
$$
(3/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/18/2026 9:48 AM America/New_York.
Valid through 4/18/2026 4:00 PM America/New_York.
fzus51 klwx 181348
cwflwx
expires:202604182000;;582450
coastal waters forecast
national weather service baltimore md/washington dc
948 am edt sat apr 18 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.
anz533-182000-
chesapeake bay from north beach to drum point-
948 am edt sat apr 18 2026
...small craft advisory in effect from 2 pm this afternoon to 8 pm
edt this evening...
...small craft advisory in effect from sunday morning through sunday
afternoon...
.rest of today...se winds 5 to 10 kt with gusts to 20 kt...becoming
s 15 kt with gusts to 20 kt late. waves 1 to 2 ft.
.tonight...se winds 15 to 20 kt...becoming w 10 to 15 kt late. waves
2 to 3 ft. scattered showers.
.sun...nw winds 20 to 25 kt with gusts to 30 kt... diminishing to
10 to 15 kt with gusts to 20 kt late. waves 3 ft. showers.
.sun night...nw winds 5 to 10 kt. waves 1 to 2 ft.
.mon...nw winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.mon night...n winds 10 to 15 kt. waves 2 ft.
.tue...n winds 5 to 10 kt...becoming se 10 to 15 kt in the afternoon
and evening, then becoming s after midnight. waves 1 to 2 ft.
.wed...sw winds 10 to 15 kt...becoming n 5 to 10 kt. waves 1 to
2 ft.
$$
(4/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/18/2026 9:48 AM America/New_York.
Valid through 4/18/2026 4:00 PM America/New_York.
fzus51 klwx 181348
cwflwx
expires:202604182000;;582453
coastal waters forecast
national weather service baltimore md/washington dc
948 am edt sat apr 18 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz534-182000-
chesapeake bay from drum point to smith point-
948 am edt sat apr 18 2026
...small craft advisory in effect from 2 pm edt this afternoon
through sunday afternoon...
.rest of today...se winds 10 to 15 kt. gusts up to 20 kt this
afternoon. waves 1 to 2 ft...building to 3 ft late.
.tonight...se winds 15 kt...becoming s late. gusts up to 20 kt.
waves 3 ft.
.sun...nw winds 20 to 25 kt. gusts up to 30 kt. waves 4 ft. showers.
.sun night...nw winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.mon...nw winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.mon night...n winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.tue...n winds 5 to 10 kt...becoming s in the afternoon, then
increasing to 15 to 20 kt. waves 1 to 2 ft... building to 3 ft after
midnight.
.wed...sw winds 15 to 20 kt...becoming w 5 to 10 kt in the afternoon
and evening, then becoming n after midnight. waves 2 to 3 ft...
subsiding to 1 ft.
$$
(5/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/18/2026 9:48 AM America/New_York.
Valid through 4/18/2026 4:00 PM America/New_York.
fzus51 klwx 181348
cwflwx
expires:202604182000;;582441
coastal waters forecast
national weather service baltimore md/washington dc
948 am edt sat apr 18 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.
anz535-182000-
tidal potomac from key bridge to indian head-
948 am edt sat apr 18 2026
...small craft advisory in effect from 2 pm this afternoon to 8 pm
edt this evening...
...small craft advisory in effect from sunday morning through sunday
afternoon...
.rest of today...e winds 5 to 10 kt with gusts to 20 kt... becoming
se 15 kt with gusts to 25 kt late. waves 1 ft.
.tonight...se winds 10 to 15 kt with gusts to 25 kt... diminishing
to 5 kt after midnight, then becoming n late. waves 1 ft. scattered
showers.
.sun...nw winds 15 to 20 kt with gusts to 30 kt... diminishing to
10 kt with gusts to 20 kt late. waves 1 to 2 ft. showers.
.sun night...nw winds 5 to 10 kt. gusts up to 20 kt in the evening.
waves 1 ft.
.mon...nw winds 5 to 10 kt with gusts to 20 kt. waves 1 ft.
.mon night...n winds 5 to 10 kt. waves 1 ft.
.tue...sw winds around 5 kt. waves 1 ft.
.wed...w winds around 5 kt. waves 1 ft. a chance of showers through
the night.
$$
(6/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/18/2026 9:48 AM America/New_York.
Valid through 4/18/2026 4:00 PM America/New_York.
fzus51 klwx 181348
cwflwx
expires:202604182000;;582442
coastal waters forecast
national weather service baltimore md/washington dc
948 am edt sat apr 18 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz536-182000-
tidal potomac from indian head to cobb island-
948 am edt sat apr 18 2026
...small craft advisory in effect from 2 pm this afternoon to 8 pm
edt this evening...
...small craft advisory in effect from sunday morning through sunday
afternoon...
.rest of today...e winds 5 to 10 kt...becoming se 15 kt with gusts
to 20 kt late. waves 1 to 2 ft.
.tonight...se winds 10 to 15 kt...becoming w 5 to 10 kt late. gusts
up to 20 kt. waves 1 to 2 ft. scattered showers.
.sun...nw winds 20 to 25 kt...diminishing to 10 to 15 kt in the
afternoon. gusts up to 30 kt...diminishing to 20 kt late. waves 2 to
3 ft. showers.
.sun night...nw winds 5 to 10 kt. waves 1 ft.
.mon...nw winds 5 to 10 kt with gusts to 20 kt. waves 1 ft.
.mon night...n winds 5 to 10 kt. waves 1 ft.
.tue...w winds around 5 kt...becoming s. waves 1 ft.
.wed...w winds 5 to 10 kt...becoming n after midnight. waves 1 ft. a
chance of showers through the night.
$$
(7/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/18/2026 9:48 AM America/New_York.
Valid through 4/18/2026 4:00 PM America/New_York.
fzus51 klwx 181348
cwflwx
expires:202604182000;;582443
coastal waters forecast
national weather service baltimore md/washington dc
948 am edt sat apr 18 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.
anz537-182000-
tidal potomac from cobb island to smith point-
948 am edt sat apr 18 2026
...small craft advisory in effect from 2 pm edt this afternoon
through sunday afternoon...
.rest of today...e winds 10 to 15 kt. gusts up to 20 kt this
afternoon. waves 1 to 2 ft.
.tonight...se winds 15 to 20 kt...becoming sw 10 to 15 kt late.
waves 2 ft.
.sun...nw winds 15 to 20 kt. gusts up to 30 kt in the late morning
and early afternoon...diminishing to 20 kt. waves 3 ft. showers.
.sun night...nw winds 5 to 10 kt. waves 1 to 2 ft.
.mon...nw winds 10 to 15 kt. waves 1 to 2 ft.
.mon night...n winds 10 to 15 kt. waves 1 to 2 ft.
.tue...n winds 5 to 10 kt...becoming se 10 to 15 kt in the afternoon
and evening, then becoming s after midnight. waves 1 to 2 ft.
.wed...sw winds 10 to 15 kt...becoming nw 5 kt. waves 1 to 2 ft.
$$
|