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(1/4)
Latest Coastal Waters Forecast by KLWX
Issued 9/21/2026 2:27 PM America/New_York.
Valid through 9/22/2026 4:00 AM America/New_York.
fzus51 klwx 211827
cwflwx
expires:202609220800;;830199
coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt mon sep 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.
anz530-220800-
chesapeake bay north of pooles island-
227 pm edt mon sep 21 2026
...small craft advisory in effect from 6 pm edt this evening through
late tuesday night...
.this afternoon...ne winds 10 kt. waves 1 ft. scattered showers.
.tonight...e winds 15 to 20 kt with gusts to 25 kt. waves 1 to 2 ft.
rain likely.
.tue...ne winds 15 to 20 kt with gusts to 30 kt. waves 2 ft. rain.
patchy fog. vsby 1 to 3 nm.
.tue night...ne winds 15 to 20 kt with gusts to 30 kt. waves 2 ft.
rain likely. patchy fog.
.wed...ne winds 15 to 20 kt with gusts to 30 kt. waves 2 ft. a
chance of rain.
.wed night...ne winds 15 to 20 kt with gusts to 30 kt. waves 2 ft.
.thu...ne winds 15 to 20 kt. waves 1 to 2 ft.
.fri...n winds 15 to 20 kt. waves 2 ft.
$$
(2/4)
Latest Coastal Waters Forecast by KLWX
Issued 9/21/2026 2:27 PM America/New_York.
Valid through 9/22/2026 4:00 AM America/New_York.
fzus51 klwx 211827
cwflwx
expires:202609220800;;830200
coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt mon sep 21 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz531-220800-
chesapeake bay from pooles island to sandy point-
227 pm edt mon sep 21 2026
...small craft advisory in effect from 6 pm edt this evening through
late tuesday night...
.this afternoon...ne winds 5 kt...increasing to 15 kt late. waves
2 ft. showers.
.tonight...e winds 15 to 20 kt with gusts to 25 kt. waves 2 to 3 ft.
rain.
.tue...ne winds 15 to 20 kt with gusts to 30 kt. waves 3 ft. rain.
patchy fog. vsby 1 to 3 nm.
.tue night...ne winds 20 to 25 kt with gusts to 30 kt. waves 3 ft.
rain. patchy fog.
.wed...ne winds 20 to 25 kt with gusts to 30 kt. waves 3 ft. rain
likely.
.wed night...ne winds 20 kt with gusts to 35 kt. waves 4 ft.
.thu...ne winds 15 to 20 kt. waves 3 ft.
.fri...n winds 20 to 25 kt. waves 3 ft.
$$
(3/4)
Latest Coastal Waters Forecast by KLWX
Issued 9/21/2026 2:27 PM America/New_York.
Valid through 9/22/2026 4:00 AM America/New_York.
fzus51 klwx 211827
cwflwx
expires:202609220800;;830203
coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt mon sep 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-
227 pm edt mon sep 21 2026
...small craft advisory in effect from 6 pm edt this evening through
late tuesday night...
.this afternoon...ne winds 10 to 15 kt. waves 2 ft. numerous
showers.
.tonight...e winds 15 to 20 kt with gusts to 25 kt. waves 2 to 3 ft.
rain likely.
.tue...ne winds 20 kt with gusts to 30 kt. waves 3 ft. rain. patchy
fog. vsby 1 to 3 nm.
.tue night...ne winds 20 to 25 kt with gusts to 30 kt. waves 4 ft.
rain. patchy fog.
.wed...ne winds 20 to 25 kt with gusts to 35 kt. waves 4 ft. rain
likely.
.wed night...ne winds 20 to 25 kt with gusts to 35 kt. waves 4 ft.
.thu...ne winds 20 to 25 kt. waves 3 ft.
.fri...n winds 20 to 25 kt. waves 3 ft.
$$
(4/4)
Latest Coastal Waters Forecast by KLWX
Issued 9/21/2026 2:27 PM America/New_York.
Valid through 9/22/2026 4:00 AM America/New_York.
fzus51 klwx 211827
cwflwx
expires:202609220800;;830205
coastal waters forecast
national weather service baltimore md/washington dc
227 pm edt mon sep 21 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz533-220800-
chesapeake bay from north beach to drum point-
227 pm edt mon sep 21 2026
...small craft advisory in effect from 6 pm edt this evening through
late tuesday night...
...gale watch in effect from wednesday morning through late
wednesday night...
.this afternoon...ne winds 5 kt...increasing to 15 kt late. waves
2 ft. scattered showers.
.tonight...e winds 15 to 20 kt with gusts to 25 kt. waves 3 ft. rain
likely.
.tue...ne winds 15 to 20 kt with gusts to 30 kt. waves 4 ft. rain.
patchy fog. vsby 1 to 3 nm.
.tue night...ne winds 20 to 25 kt with gusts to 30 kt. waves 4 ft.
rain. patchy fog.
.wed...ne winds 20 to 25 kt with gusts to 35 kt. waves 5 ft. rain
likely.
.wed night...ne winds 20 to 25 kt with gusts to 35 kt. waves 5 ft. a
chance of rain.
.thu...ne winds 20 to 25 kt. waves 4 ft.
.fri...n winds 20 to 25 kt. waves 4 ft.
$$
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