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(1/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/17/2026 4:59 AM America/New_York.
Valid through 4/17/2026 7:00 PM America/New_York.
fzus51 klwx 170859
cwflwx
expires:202604172300;;513024
coastal waters forecast
national weather service baltimore md/washington dc
458 am edt fri apr 17 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.
anz531-172300-
chesapeake bay from pooles island to sandy point-
458 am edt fri apr 17 2026
...small craft advisory in effect from 11 am edt this morning
through this evening...
.rest of the overnight...w winds 10 kt. waves 1 ft. isolated
showers.
.today...nw winds 5 to 10 kt. gusts up to 20 kt in the late morning
and afternoon. waves 1 to 2 ft.
.tonight...ne winds 5 to 10 kt. waves 1 to 2 ft.
.sat...e winds 10 kt. gusts up to 20 kt in the afternoon. waves 1 to
2 ft.
.sat night...e winds 10 to 15 kt with gusts to 20 kt. waves 1 to
2 ft. a chance of 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 with gusts to 25 kt. waves 2 to
3 ft.
.mon...nw winds 10 to 15 kt...becoming n 5 to 10 kt after midnight.
waves 1 to 2 ft.
.tue...ne winds 5 to 10 kt...becoming s 10 to 15 kt. waves 1 to
2 ft.
$$
(2/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/17/2026 4:59 AM America/New_York.
Valid through 4/17/2026 7:00 PM America/New_York.
fzus51 klwx 170859
cwflwx
expires:202604172300;;513027
coastal waters forecast
national weather service baltimore md/washington dc
458 am edt fri apr 17 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz532-172300-
chesapeake bay from sandy point to north beach-
458 am edt fri apr 17 2026
...small craft advisory in effect from 11 am edt this morning
through this evening...
.rest of the overnight...nw winds 10 kt. waves 1 ft. isolated
showers.
.today...nw winds 5 to 10 kt. gusts up to 20 kt in the late morning
and afternoon. waves 1 to 2 ft.
.tonight...ne winds 5 to 10 kt. waves 1 ft.
.sat...se winds 5 to 10 kt. gusts up to 20 kt in the afternoon.
waves 1 to 2 ft.
.sat night...se winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. a
chance of showers.
.sun...nw winds 15 to 20 kt with gusts to 30 kt. waves 3 ft.
showers.
.sun night...nw winds 10 to 15 kt with gusts to 25 kt. waves 2 ft.
.mon...nw winds 10 to 15 kt...becoming n after midnight. waves 1 to
2 ft.
.tue...ne winds 5 to 10 kt...becoming s 10 to 15 kt in the afternoon
and evening, then becoming sw after midnight. waves 1 to 2 ft.
$$
(3/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/17/2026 4:59 AM America/New_York.
Valid through 4/17/2026 7:00 PM America/New_York.
fzus51 klwx 170859
cwflwx
expires:202604172300;;513029
coastal waters forecast
national weather service baltimore md/washington dc
458 am edt fri apr 17 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.
anz533-172300-
chesapeake bay from north beach to drum point-
458 am edt fri apr 17 2026
...small craft advisory in effect from 11 am edt this morning
through this evening...
.rest of the overnight...nw winds 10 kt. waves 1 ft. isolated
showers.
.today...nw winds 5 to 10 kt. gusts up to 20 kt in the afternoon.
waves 1 to 2 ft.
.tonight...ne winds 5 to 10 kt. waves 1 ft.
.sat...e winds 5 to 10 kt. gusts up to 20 kt in the afternoon. waves
1 to 2 ft.
.sat night...se winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. a
chance of 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 with gusts to 25 kt. waves 2 to
3 ft.
.mon...nw winds 10 to 15 kt...becoming n after midnight. waves 2 ft.
.tue...n winds 5 to 10 kt...becoming s 10 to 15 kt in the afternoon
and evening, then becoming sw after midnight. waves 1 to 2 ft.
$$
(4/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/17/2026 4:59 AM America/New_York.
Valid through 4/17/2026 7:00 PM America/New_York.
fzus51 klwx 170859
cwflwx
expires:202604172300;;513032
coastal waters forecast
national weather service baltimore md/washington dc
458 am edt fri apr 17 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz534-172300-
chesapeake bay from drum point to smith point-
458 am edt fri apr 17 2026
.rest of the overnight...nw winds 10 kt. waves 2 ft. scattered
showers.
.today...nw winds 10 kt. waves 1 ft.
.tonight...ne winds 5 to 10 kt. waves 1 ft.
.sat...e winds 10 to 15 kt. gusts up to 25 kt in the afternoon.
waves 1 ft...building to 3 ft in the afternoon.
.sat night...se winds 10 to 15 kt with gusts to 25 kt. waves 3 ft. a
chance of showers.
.sun...nw winds 20 to 25 kt with gusts to 30 kt. waves 4 ft.
showers.
.sun night...nw winds 15 kt with gusts to 25 kt. waves 3 ft.
.mon...nw winds 15 to 20 kt...becoming n 10 to 15 kt after midnight.
waves 2 to 3 ft.
.tue...n winds 10 to 15 kt...becoming s 5 to 10 kt in the afternoon,
then increasing to 15 to 20 kt. waves 1 to 2 ft...building to 3 ft
after midnight.
$$
(5/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/17/2026 4:59 AM America/New_York.
Valid through 4/17/2026 7:00 PM America/New_York.
fzus51 klwx 170859
cwflwx
expires:202604172300;;513020
coastal waters forecast
national weather service baltimore md/washington dc
458 am edt fri apr 17 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.
anz535-172300-
tidal potomac from key bridge to indian head-
458 am edt fri apr 17 2026
...small craft advisory in effect from 11 am edt this morning
through this evening...
.rest of the overnight...nw winds 5 kt. waves less than 1 ft.
isolated showers.
.today...nw winds 5 to 10 kt. gusts up to 20 kt in the late morning
and afternoon. waves 1 ft.
.tonight...ne winds 5 to 10 kt. gusts up to 20 kt early in the
evening. waves 1 ft.
.sat...se winds 5 to 10 kt. gusts up to 20 kt in the afternoon.
waves 1 ft.
.sat night...se winds 5 to 10 kt. gusts up to 20 kt in the evening.
waves 1 ft. a chance of showers.
.sun...nw winds 10 to 15 kt with gusts to 25 kt. waves 1 ft.
showers.
.sun night...nw winds 10 to 15 kt. gusts up to 25 kt in the evening.
waves 1 ft.
.mon...nw winds 10 to 15 kt...becoming n around 5 kt after midnight.
waves 1 ft.
.tue...sw winds around 5 kt. waves 1 ft.
$$
(6/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/17/2026 4:59 AM America/New_York.
Valid through 4/17/2026 7:00 PM America/New_York.
fzus51 klwx 170859
cwflwx
expires:202604172300;;513021
coastal waters forecast
national weather service baltimore md/washington dc
458 am edt fri apr 17 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz536-172300-
tidal potomac from indian head to cobb island-
458 am edt fri apr 17 2026
...small craft advisory in effect from 11 am edt this morning
through this evening...
.rest of the overnight...nw winds 5 kt. waves less than 1 ft.
isolated showers.
.today...nw winds 5 to 10 kt. gusts up to 20 kt in the late morning
and afternoon. waves 1 ft.
.tonight...ne winds 5 to 10 kt. waves 1 ft.
.sat...e winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
waves 1 to 2 ft.
.sat night...se winds 10 to 15 kt. gusts up to 20 kt in the evening.
waves 1 to 2 ft. a chance of showers.
.sun...nw winds 10 to 15 kt with gusts to 25 kt. waves 2 ft.
showers.
.sun night...nw winds 10 to 15 kt with gusts to 25 kt...becoming w
after midnight. waves 1 to 2 ft.
.mon...nw winds 10 to 15 kt...becoming n around 5 kt after midnight.
waves 1 ft.
.tue...w winds around 5 kt...becoming s. waves 1 ft.
$$
(7/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/17/2026 4:59 AM America/New_York.
Valid through 4/17/2026 7:00 PM America/New_York.
fzus51 klwx 170859
cwflwx
expires:202604172300;;513022
coastal waters forecast
national weather service baltimore md/washington dc
458 am edt fri apr 17 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.
anz537-172300-
tidal potomac from cobb island to smith point-
458 am edt fri apr 17 2026
...small craft advisory in effect from 11 am edt this morning
through this evening...
.rest of the overnight...nw winds 10 kt. waves 1 ft. scattered
showers.
.today...nw winds 5 to 10 kt. gusts up to 20 kt in the late morning
and afternoon. waves 1 to 2 ft.
.tonight...ne winds 5 to 10 kt. waves 1 ft.
.sat...e winds 10 to 15 kt. gusts up to 25 kt in the afternoon.
waves 1 to 2 ft.
.sat night...se winds 10 to 15 kt...becoming s after midnight. gusts
up to 25 kt. waves 2 to 3 ft. a chance of 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 with gusts to 25 kt. waves 2 ft.
.mon...nw winds 10 to 15 kt...becoming n after midnight. waves 1 to
2 ft.
.tue...n winds 5 to 10 kt...becoming s 10 to 15 kt. waves 1 to 2 ft.
$$
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