(1/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/23/2026 4:57 AM America/New_York.
Valid through 9/23/2026 7:00 PM America/New_York.
fzus51 klwx 230857
cwflwx
expires:202609232300;;916272
coastal waters forecast
national weather service baltimore md/washington dc
457 am edt wed sep 23 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.
anz531-232300-
chesapeake bay from pooles island to sandy point-
457 am edt wed sep 23 2026
...small craft advisory in effect through late thursday night...
.rest of the overnight...ne winds 20 kt with gusts to 30 kt. waves
3 ft. a chance of showers with patchy drizzle.
.today...ne winds 15 to 20 kt with gusts to 30 kt. waves 3 ft. a
chance of showers.
.tonight...ne winds 20 to 25 kt with gusts to 30 kt. waves 3 ft.
.thu...ne winds 15 to 20 kt with gusts to 30 kt. waves 3 ft.
.thu night...ne winds 10 to 15 kt...becoming n 20 to 25 kt after
midnight. waves 2 to 3 ft.
.fri...n winds 20 to 25 kt. waves 3 ft.
.fri night...n winds 20 to 25 kt with gusts to 30 kt. waves 3 ft.
.sat...n winds 20 to 25 kt. waves 3 ft.
.sun...nw winds 20 to 25 kt...becoming n 10 to 15 kt. waves 2 to
3 ft.
$$
(2/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/23/2026 4:57 AM America/New_York.
Valid through 9/23/2026 7:00 PM America/New_York.
fzus51 klwx 230857
cwflwx
expires:202609232300;;916275
coastal waters forecast
national weather service baltimore md/washington dc
457 am edt wed sep 23 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz532-232300-
chesapeake bay from sandy point to north beach-
457 am edt wed sep 23 2026
...small craft advisory in effect through late thursday night...
.rest of the overnight...ne winds 25 kt with gusts to 30 kt. waves
4 ft. a chance of showers with patchy drizzle.
.today...ne winds 20 to 25 kt with gusts to 30 kt. waves 4 ft.
showers likely.
.tonight...ne winds 20 to 25 kt with gusts to 30 kt. waves 4 ft.
.thu...ne winds 20 to 25 kt with gusts to 30 kt. waves 3 ft.
.thu night...n winds 20 to 25 kt with gusts to 30 kt. waves 3 ft.
.fri...n winds 20 to 25 kt with gusts to 30 kt. waves 4 ft.
.fri night...n winds 20 to 25 kt with gusts to 30 kt. waves 4 ft.
.sat...nw winds 20 to 25 kt. waves 3 ft.
.sun...nw winds 20 to 25 kt...becoming n 10 to 15 kt. waves 2 to
3 ft.
$$
(3/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/23/2026 4:57 AM America/New_York.
Valid through 9/23/2026 7:00 PM America/New_York.
fzus51 klwx 230857
cwflwx
expires:202609232300;;916277
coastal waters forecast
national weather service baltimore md/washington dc
457 am edt wed sep 23 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.
anz533-232300-
chesapeake bay from north beach to drum point-
457 am edt wed sep 23 2026
...small craft advisory in effect until 6 am edt early this
morning...
...gale warning in effect through late tonight...
...small craft advisory in effect from thursday morning through late
thursday night...
.rest of the overnight...ne winds 25 kt with gusts to 30 kt. waves
4 ft. showers likely with patchy drizzle.
.today...ne winds 20 to 25 kt with gusts to 35 kt. waves 4 ft.
showers likely.
.tonight...ne winds 20 to 25 kt with gusts to 40 kt. waves 5 ft.
.thu...ne winds 20 to 25 kt with gusts to 35 kt. waves 4 ft.
.thu night...n winds 20 to 25 kt with gusts to 30 kt. waves 4 ft.
.fri...n winds 20 to 25 kt with gusts to 35 kt. waves 4 ft.
.fri night...n winds 25 to 30 kt. waves 5 ft.
.sat...n winds 25 to 30 kt. waves 4 ft.
.sun...nw winds 20 to 25 kt...diminishing to 10 to 15 kt after
midnight. waves 3 ft...subsiding to 2 ft after midnight.
$$
(4/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/23/2026 4:57 AM America/New_York.
Valid through 9/23/2026 7:00 PM America/New_York.
fzus51 klwx 230857
cwflwx
expires:202609232300;;916280
coastal waters forecast
national weather service baltimore md/washington dc
457 am edt wed sep 23 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz534-232300-
chesapeake bay from drum point to smith point-
457 am edt wed sep 23 2026
...small craft advisory in effect until 6 am edt early this
morning...
...gale warning in effect through late tonight...
...small craft advisory in effect from thursday morning through late
thursday night...
.rest of the overnight...ne winds 25 kt with gusts to 30 kt. waves
5 ft. a chance of showers with patchy drizzle.
.today...ne winds 20 to 25 kt with gusts to 35 kt. waves 5 ft.
showers likely.
.tonight...ne winds 20 to 25 kt with gusts to 35 kt. waves 5 ft.
.thu...ne winds 20 to 25 kt with gusts to 30 kt. waves 5 ft.
.thu night...n winds 20 to 25 kt with gusts to 30 kt. waves 5 ft.
.fri...n winds 25 to 30 kt. waves 5 ft.
.fri night...n winds 25 to 30 kt. waves 5 ft.
.sat...n winds 25 to 30 kt. waves 5 ft...subsiding to 4 ft after
midnight.
.sun...nw winds 20 to 25 kt...diminishing to 10 to 15 kt after
midnight. waves 3 ft...subsiding to 2 ft after midnight.
$$
(5/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/23/2026 4:57 AM America/New_York.
Valid through 9/23/2026 7:00 PM America/New_York.
fzus51 klwx 230857
cwflwx
expires:202609232300;;916268
coastal waters forecast
national weather service baltimore md/washington dc
457 am edt wed sep 23 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.
anz535-232300-
tidal potomac from key bridge to indian head-
457 am edt wed sep 23 2026
...small craft advisory in effect through late thursday night...
.rest of the overnight...ne winds 10 kt with gusts to 20 kt. waves
1 ft. showers likely with patchy drizzle.
.today...ne winds 10 kt with gusts to 25 kt. waves 1 ft. showers
likely.
.tonight...ne winds 5 to 10 kt with gusts to 25 kt. waves 1 ft.
.thu...ne winds 10 to 15 kt with gusts to 20 kt. waves 1 ft.
.thu night...n winds 5 to 10 kt. waves 1 ft.
.fri...n winds 10 to 15 kt with gusts to 25 kt. waves 1 ft.
.fri night...n winds 10 to 15 kt with gusts to 25 kt. waves 1 ft.
.sat...nw winds 10 to 15 kt. waves 1 ft.
.sun...nw winds 10 to 15 kt. waves 1 ft.
$$
(6/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/23/2026 4:57 AM America/New_York.
Valid through 9/23/2026 7:00 PM America/New_York.
fzus51 klwx 230857
cwflwx
expires:202609232300;;916269
coastal waters forecast
national weather service baltimore md/washington dc
457 am edt wed sep 23 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz536-232300-
tidal potomac from indian head to cobb island-
457 am edt wed sep 23 2026
...small craft advisory in effect through late thursday night...
.rest of the overnight...ne winds 15 kt with gusts to 25 kt. waves
2 ft. showers with patchy drizzle. patchy fog. vsby 1 to 3 nm.
.today...ne winds 10 to 15 kt with gusts to 25 kt. waves 2 ft.
showers likely.
.tonight...ne winds 15 to 20 kt with gusts to 30 kt. waves 2 ft.
.thu...ne winds 10 to 15 kt with gusts to 25 kt. waves 2 ft.
.thu night...n winds 10 to 15 kt with gusts to 25 kt. waves 1 to
2 ft.
.fri...n winds 15 to 20 kt with gusts to 25 kt. waves 1 to 2 ft.
.fri night...n winds 15 to 20 kt with gusts to 25 kt. waves 2 ft.
.sat...nw winds 15 to 20 kt. waves 2 ft.
.sun...nw winds 10 to 15 kt. waves 1 to 2 ft.
$$
(7/7)
Latest Coastal Waters Forecast by KLWX
Issued 9/23/2026 4:57 AM America/New_York.
Valid through 9/23/2026 7:00 PM America/New_York.
fzus51 klwx 230857
cwflwx
expires:202609232300;;916270
coastal waters forecast
national weather service baltimore md/washington dc
457 am edt wed sep 23 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.
anz537-232300-
tidal potomac from cobb island to smith point-
457 am edt wed sep 23 2026
...small craft advisory in effect until 6 am edt early this
morning...
...gale warning in effect through late tonight...
...small craft advisory in effect from thursday morning through late
thursday night...
.rest of the overnight...ne winds 25 kt with gusts to 30 kt. waves
4 ft. showers likely with patchy drizzle.
.today...ne winds 20 to 25 kt with gusts to 35 kt. waves 5 ft.
showers likely.
.tonight...ne winds 20 to 25 kt with gusts to 40 kt. waves 5 ft.
.thu...ne winds 20 to 25 kt with gusts to 30 kt. waves 4 ft.
.thu night...n winds 20 to 25 kt with gusts to 30 kt. waves 4 ft.
.fri...n winds 20 to 25 kt with gusts to 30 kt. waves 4 ft.
.fri night...n winds 20 to 25 kt with gusts to 30 kt. waves 4 ft.
.sat...nw winds 20 to 25 kt. waves 3 ft.
.sun...nw winds 15 to 20 kt...diminishing to 10 kt after midnight.
waves 2 to 3 ft...subsiding to 1 ft after midnight.
$$
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