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(1/7)
Latest Coastal Waters Forecast by KLWX
Issued 10/21/2026 4:57 PM America/New_York.
Valid through 10/22/2026 4:00 AM America/New_York.
fzus51 klwx 212057
cwflwx
expires:202610220800;;958364
coastal waters forecast
national weather service baltimore md/washington dc
456 pm edt wed oct 21 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.
anz531-220800-
chesapeake bay from pooles island to sandy point-
456 pm edt wed oct 21 2026
...small craft advisory in effect through thursday evening...
.rest of this afternoon...n winds 15 kt with gusts to 20 kt. waves
2 ft.
.tonight...n winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.thu...n winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.thu night...n winds 10 to 15 kt with gusts to 25 kt. waves 2 to
3 ft.
.fri...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.fri night...e winds 5 kt. waves less than 1 ft.
.sat...ne winds around 5 kt. waves 1 ft or less.
.sun...e winds around 5 kt. waves flat.
$$
(2/7)
Latest Coastal Waters Forecast by KLWX
Issued 10/21/2026 4:57 PM America/New_York.
Valid through 10/22/2026 4:00 AM America/New_York.
fzus51 klwx 212057
cwflwx
expires:202610220800;;958367
coastal waters forecast
national weather service baltimore md/washington dc
456 pm edt wed oct 21 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz532-220800-
chesapeake bay from sandy point to north beach-
456 pm edt wed oct 21 2026
...small craft advisory in effect through thursday evening...
.rest of this afternoon...n winds 15 kt with gusts to 20 kt. waves
2 ft.
.tonight...n winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.thu...n winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.thu night...n winds 15 to 20 kt with gusts to 25 kt. waves 2 to
3 ft.
.fri...ne winds 10 to 15 kt. gusts up to 25 kt in the morning. waves
2 to 3 ft.
.fri night...e winds 5 to 10 kt. waves 1 ft.
.sat...ne winds 5 to 10 kt. waves 1 ft or less.
.sun...ne winds around 5 kt. waves flat.
$$
(3/7)
Latest Coastal Waters Forecast by KLWX
Issued 10/21/2026 4:57 PM America/New_York.
Valid through 10/22/2026 4:00 AM America/New_York.
fzus51 klwx 212057
cwflwx
expires:202610220800;;958369
coastal waters forecast
national weather service baltimore md/washington dc
456 pm edt wed oct 21 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.
anz533-220800-
chesapeake bay from north beach to drum point-
456 pm edt wed oct 21 2026
...small craft advisory in effect through thursday evening...
.rest of this afternoon...n winds 20 kt. waves 3 ft.
.tonight...n winds 10 to 15 kt with gusts to 20 kt. waves 2 to 3 ft.
.thu...n winds 10 to 15 kt with gusts to 25 kt. waves 3 ft.
.thu night...n winds 15 to 20 kt with gusts to 25 kt. waves 2 to
3 ft.
.fri...ne winds 15 to 20 kt with gusts to 25 kt. waves 2 to 3 ft.
.fri night...ne winds 5 to 10 kt. waves 1 ft.
.sat...ne winds 5 to 10 kt. waves 1 ft.
.sun...ne winds around 5 kt. waves 1 ft or less.
$$
(4/7)
Latest Coastal Waters Forecast by KLWX
Issued 10/21/2026 4:57 PM America/New_York.
Valid through 10/22/2026 4:00 AM America/New_York.
fzus51 klwx 212057
cwflwx
expires:202610220800;;958372
coastal waters forecast
national weather service baltimore md/washington dc
456 pm edt wed oct 21 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz534-220800-
chesapeake bay from drum point to smith point-
456 pm edt wed oct 21 2026
...small craft advisory in effect through thursday evening...
.rest of this afternoon...n winds 20 kt. waves 3 ft.
.tonight...n winds 10 to 15 kt with gusts to 20 kt. waves 3 ft.
.thu...n winds 10 to 15 kt with gusts to 25 kt. waves 3 ft.
.thu night...n winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
.fri...ne winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
.fri night...ne winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.sat...ne winds 10 to 15 kt. waves 1 to 2 ft.
.sun...ne winds 5 to 10 kt. waves 1 ft.
$$
(5/7)
Latest Coastal Waters Forecast by KLWX
Issued 10/21/2026 4:57 PM America/New_York.
Valid through 10/22/2026 4:00 AM America/New_York.
fzus51 klwx 212057
cwflwx
expires:202610220800;;958360
coastal waters forecast
national weather service baltimore md/washington dc
456 pm edt wed oct 21 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.
anz535-220800-
tidal potomac from key bridge to indian head-
456 pm edt wed oct 21 2026
.rest of this afternoon...n winds 10 kt. waves 1 ft.
.tonight...n winds 5 to 10 kt. waves 1 ft.
.thu...n winds 5 to 10 kt with gusts to 20 kt. waves 1 ft.
.thu night...n winds 5 to 10 kt with gusts to 20 kt. waves 1 ft.
.fri...ne winds 5 to 10 kt. waves 1 ft.
.fri night...ne winds around 5 kt. waves 1 ft.
.sat...ne winds around 5 kt. waves 1 ft or less.
.sun...e winds around 5 kt. waves 1 ft or less.
$$
(6/7)
Latest Coastal Waters Forecast by KLWX
Issued 10/21/2026 4:57 PM America/New_York.
Valid through 10/22/2026 4:00 AM America/New_York.
fzus51 klwx 212057
cwflwx
expires:202610220800;;958361
coastal waters forecast
national weather service baltimore md/washington dc
456 pm edt wed oct 21 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz536-220800-
tidal potomac from indian head to cobb island-
456 pm edt wed oct 21 2026
.rest of this afternoon...n winds 10 kt. waves 1 ft.
.tonight...n winds 5 to 10 kt. waves 1 ft.
.thu...n winds 5 to 10 kt with gusts to 20 kt. waves 1 ft.
.thu night...n winds 5 to 10 kt with gusts to 20 kt. waves 1 ft.
.fri...ne winds 5 to 10 kt. waves 1 ft.
.fri night...ne winds around 5 kt. waves 1 ft.
.sat...ne winds around 5 kt. waves 1 ft.
.sun...ne winds around 5 kt. waves 1 ft or less.
$$
(7/7)
Latest Coastal Waters Forecast by KLWX
Issued 10/21/2026 4:57 PM America/New_York.
Valid through 10/22/2026 4:00 AM America/New_York.
fzus51 klwx 212057
cwflwx
expires:202610220800;;958362
coastal waters forecast
national weather service baltimore md/washington dc
456 pm edt wed oct 21 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.
anz537-220800-
tidal potomac from cobb island to smith point-
456 pm edt wed oct 21 2026
...small craft advisory in effect through thursday evening...
.rest of this afternoon...n winds 15 kt with gusts to 20 kt. waves
2 ft.
.tonight...n winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.thu...n winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.thu night...n winds 10 to 15 kt with gusts to 25 kt. waves 1 to
2 ft.
.fri...ne winds 10 to 15 kt with gusts to 25 kt. waves 2 ft.
.fri night...ne winds 5 to 10 kt. waves 2 ft.
.sat...ne winds 5 to 10 kt. waves 1 to 2 ft.
.sun...ne winds 5 to 10 kt. waves 1 ft or less.
$$
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