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(1/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/17/2026 4:57 PM America/New_York.
Valid through 4/18/2026 4:00 AM America/New_York.
fzus51 klwx 172057
cwflwx
expires:202604180800;;542550
coastal waters forecast
national weather service baltimore md/washington dc
457 pm 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.
anz534-180800-
chesapeake bay from drum point to smith point-
457 pm edt fri apr 17 2026
.rest of this afternoon...nw winds 5 kt. waves less than 1 ft.
.tonight...n winds around 5 kt. waves 1 ft or less.
.sat...e winds 10 to 15 kt...becoming se with gusts to 20 kt late.
waves 1 to 2 ft.
.sat night...s winds 10 to 15 kt with gusts to 20 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 10 to 15 kt with gusts to 20 kt. waves 2 to
3 ft.
.mon...nw winds 10 to 15 kt...becoming n. waves 2 ft.
.tue...n winds 10 to 15 kt...becoming se 5 to 10 kt in the
afternoon, then becoming s 15 to 20 kt. waves 1 to 2 ft...building
to 3 ft after midnight.
$$
(2/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/17/2026 4:57 PM America/New_York.
Valid through 4/18/2026 4:00 AM America/New_York.
fzus51 klwx 172057
cwflwx
expires:202604180800;;542542
coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt fri apr 17 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz531-180800-
chesapeake bay from pooles island to sandy point-
457 pm edt fri apr 17 2026
...small craft advisory in effect until 8 pm edt this evening...
.rest of this afternoon...nw winds 10 kt with gusts to 20 kt. waves
1 ft. a slight chance of showers.
.tonight...ne winds 5 to 10 kt. gusts up to 20 kt early in the
evening. waves 1 ft or less.
.sat...e winds 5 to 10 kt. gusts up to 20 kt in the afternoon. waves
1 ft.
.sat night...se winds 10 to 15 kt with gusts to 20 kt...becoming e
5 to 10 kt after midnight. waves 1 to 2 ft. a chance of showers.
.sun...nw winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
showers.
.sun night...nw winds 10 to 15 kt...becoming w 5 to 10 kt after
midnight. waves 1 to 2 ft.
.mon...nw winds 10 to 15 kt...becoming n 5 to 10 kt after midnight.
waves 1 to 2 ft.
.tue...ne winds 5 kt...becoming s 10 to 15 kt. waves 1 to 2 ft.
$$
(3/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/17/2026 4:57 PM America/New_York.
Valid through 4/18/2026 4:00 AM America/New_York.
fzus51 klwx 172057
cwflwx
expires:202604180800;;542545
coastal waters forecast
national weather service baltimore md/washington dc
457 pm 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.
anz532-180800-
chesapeake bay from sandy point to north beach-
457 pm edt fri apr 17 2026
...small craft advisory in effect until 8 pm edt this evening...
.rest of this afternoon...n winds 10 kt with gusts to 20 kt. waves
1 ft.
.tonight...ne winds 5 to 10 kt. gusts up to 20 kt early in the
evening. waves 1 ft or less.
.sat...se winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft.
.sat night...se winds 10 to 15 kt...becoming e 5 to 10 kt after
midnight. gusts up to 20 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...becoming w after midnight. waves
1 to 2 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.
$$
(4/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/17/2026 4:57 PM America/New_York.
Valid through 4/18/2026 4:00 AM America/New_York.
fzus51 klwx 172057
cwflwx
expires:202604180800;;542540
coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt fri apr 17 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz537-180800-
tidal potomac from cobb island to smith point-
457 pm edt fri apr 17 2026
...small craft advisory in effect until 8 pm edt this evening...
.rest of this afternoon...nw winds 10 kt with gusts to 20 kt. waves
1 ft.
.tonight...ne winds 5 to 10 kt. gusts up to 20 kt early in the
evening. waves 1 ft or less.
.sat...e winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft.
.sat night...se winds 10 to 15 kt...becoming s after midnight. gusts
up to 20 kt. waves 2 ft. a chance of showers.
.sun...nw winds 15 to 20 kt with gusts to 30 kt. waves 3 ft.
showers.
.sun night...nw winds 5 to 10 kt. waves 1 to 2 ft.
.mon...nw winds 10 to 15 kt...becoming n 5 to 10 kt. waves 1 to
2 ft.
.tue...n winds 5 to 10 kt...becoming se 10 to 15 kt in the afternoon
and evening, then becoming sw after midnight. waves 1 to 2 ft.
$$
(5/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/17/2026 4:57 PM America/New_York.
Valid through 4/18/2026 4:00 AM America/New_York.
fzus51 klwx 172057
cwflwx
expires:202604180800;;542538
coastal waters forecast
national weather service baltimore md/washington dc
457 pm 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.
anz535-180800-
tidal potomac from key bridge to indian head-
457 pm edt fri apr 17 2026
...small craft advisory in effect until 8 pm edt this evening...
.rest of this afternoon...nw winds 10 kt with gusts to 20 kt. waves
1 ft.
.tonight...n winds 5 to 10 kt with gusts to 20 kt... becoming ne
after midnight. waves 1 ft or less.
.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 with gusts to 20 kt. waves 1 ft.
showers likely.
.sun...nw winds 15 to 20 kt with gusts to 30 kt. 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. waves 1 ft.
.tue...sw winds around 5 kt. waves 1 ft.
$$
(6/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/17/2026 4:57 PM America/New_York.
Valid through 4/18/2026 4:00 AM America/New_York.
fzus51 klwx 172057
cwflwx
expires:202604180800;;542539
coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt fri apr 17 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz536-180800-
tidal potomac from indian head to cobb island-
457 pm edt fri apr 17 2026
...small craft advisory in effect until 8 pm edt this evening...
.rest of this afternoon...nw winds 10 kt with gusts to 20 kt. waves
1 ft.
.tonight...ne winds 5 to 10 kt with gusts to 20 kt... diminishing to
around 5 kt after midnight. waves 1 ft or less.
.sat...e winds 10 to 15 kt with gusts to 20 kt. waves 1 ft.
.sat night...se winds 10 to 15 kt...becoming s 5 to 10 kt after
midnight. gusts up to 20 kt. waves 1 to 2 ft. a chance of showers.
.sun...nw winds 20 to 25 kt...diminishing to 10 to 15 kt in the
afternoon. gusts up to 30 kt. waves 2 to 3 ft. showers.
.sun night...nw winds 5 to 10 kt. waves 1 ft.
.mon...nw winds 5 to 10 kt. waves 1 ft.
.tue...w winds around 5 kt...becoming s. waves 1 ft.
$$
(7/7)
Latest Coastal Waters Forecast by KLWX
Issued 4/17/2026 2:27 PM America/New_York.
Valid through 4/18/2026 4:00 AM America/New_York.
fzus51 klwx 171827
cwflwx
expires:202604180800;;534762
coastal waters forecast
national weather service baltimore md/washington dc
227 pm 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.
anz533-180800-
chesapeake bay from north beach to drum point-
227 pm edt fri apr 17 2026
...small craft advisory in effect until 8 pm edt this evening...
.this afternoon...n winds 10 kt with gusts to 20 kt. waves 1 to
2 ft.
.tonight...n winds 5 to 10 kt. gusts up to 20 kt early in the
evening. waves 2 ft...subsiding to flat after midnight.
.sat...se winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft.
.sat night...s winds 10 to 15 kt with gusts to 20 kt. waves 2 to
3 ft. a chance of showers.
.sun...nw winds 20 to 25 kt with gusts to 30 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...becoming n 5 to 10 kt after midnight.
waves 1 to 2 ft.
.tue...ne 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.
$$
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