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xt_Great Lakes

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Home : xt_USA : xt_Great Lakes : Weather Bulletin

(1/7) Latest Coastal Waters Forecast by KLWX
Issued 9/15/2026 4:57 AM America/New_York.
Valid through 9/15/2026 7:00 PM America/New_York.

fzus51 klwx 150857
cwflwx
expires:202609152300;;482445

coastal waters forecast
national weather service baltimore md/washington dc
457 am edt tue sep 15 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.


anz531-152300-
chesapeake bay from pooles island to sandy point-
457 am edt tue sep 15 2026

.rest of the overnight...ne winds 10 kt. waves 1 ft. 
.today...e winds 5 to 10 kt...becoming s late. waves 1 ft.
.tonight...se winds 5 to 10 kt. waves 1 ft. 
.wed...s winds 5 to 10 kt. waves 1 ft. 
.wed night...s winds 5 to 10 kt. waves 1 ft. 
.thu...s winds 5 to 10 kt. waves 1 ft. 
.thu night...sw winds 5 to 10 kt. waves 1 ft. 
.fri...n winds 10 to 15 kt. waves 1 to 2 ft. 
.sat...ne winds 10 to 15 kt...becoming s after midnight. waves 1 to
2 ft.  

$$

(2/7) Latest Coastal Waters Forecast by KLWX
Issued 9/15/2026 4:57 AM America/New_York.
Valid through 9/15/2026 7:00 PM America/New_York.

fzus51 klwx 150857
cwflwx
expires:202609152300;;482448

coastal waters forecast
national weather service baltimore md/washington dc
457 am edt tue sep 15 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.


anz532-152300-
chesapeake bay from sandy point to north beach-
457 am edt tue sep 15 2026

.rest of the overnight...ne winds 15 kt. waves 2 ft. 
.today...e winds 5 to 10 kt...becoming s late. waves 1 to 2 ft. 
.tonight...s winds 5 to 10 kt. waves 1 ft. 
.wed...s winds 5 to 10 kt. waves 1 ft. 
.wed night...s winds 5 to 10 kt. waves 1 ft. 
.thu...s winds 10 to 15 kt. waves 1 to 2 ft. 
.thu night...s winds 10 to 15 kt. waves 2 ft. 
.fri...nw winds 5 to 10 kt...becoming ne 10 to 15 kt. waves 1 to
2 ft. a chance of showers through the night. 
.sat...e winds 10 to 15 kt...becoming se. waves 1 to 2 ft.  

$$

(3/7) Latest Coastal Waters Forecast by KLWX
Issued 9/15/2026 4:57 AM America/New_York.
Valid through 9/15/2026 7:00 PM America/New_York.

fzus51 klwx 150857
cwflwx
expires:202609152300;;482450

coastal waters forecast
national weather service baltimore md/washington dc
457 am edt tue sep 15 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.


anz533-152300-
chesapeake bay from north beach to drum point-
457 am edt tue sep 15 2026

.rest of the overnight...ne winds 15 kt with gusts to 20 kt. waves
2 ft. 
.today...e winds 5 to 10 kt...becoming se late. waves 1 to 2 ft. 
.tonight...se winds 5 to 10 kt. waves 1 ft. 
.wed...s winds 5 to 10 kt. waves 1 ft or less. 
.wed night...s winds 5 to 10 kt. waves 1 ft. 
.thu...s winds 5 kt...increasing to 10 to 15 kt in the afternoon.
waves 1 to 2 ft. 
.thu night...s winds 10 to 15 kt. waves 1 to 2 ft. 
.fri...nw winds 5 to 10 kt...becoming ne 10 to 15 kt. waves 1 to
2 ft. a chance of showers through the night. 
.sat...e winds 10 to 15 kt...becoming se. waves 1 to 2 ft.  

$$

(4/7) Latest Coastal Waters Forecast by KLWX
Issued 9/15/2026 4:57 AM America/New_York.
Valid through 9/15/2026 7:00 PM America/New_York.

fzus51 klwx 150857
cwflwx
expires:202609152300;;482453

coastal waters forecast
national weather service baltimore md/washington dc
457 am edt tue sep 15 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.


anz534-152300-
chesapeake bay from drum point to smith point-
457 am edt tue sep 15 2026

...small craft advisory in effect until 7 am edt this morning...

.rest of the overnight...ne winds 15 kt with gusts to 20 kt. waves
2 ft. 
.today...ne winds 10 to 15 kt...becoming e around 5 kt in the
afternoon. waves 1 to 2 ft. 
.tonight...se winds 5 to 10 kt. waves 1 ft. 
.wed...se winds around 5 kt. waves 1 ft or less. 
.wed night...s winds 5 to 10 kt. waves 1 ft. 
.thu...s winds 5 to 10 kt. waves 1 to 2 ft. 
.thu night...s winds 10 to 15 kt. waves 2 ft. 
.fri...nw winds 5 to 10 kt...becoming ne 10 to 15 kt. waves 1 to
2 ft. 
.sat...e winds 10 to 15 kt...becoming se. waves 2 ft.  

$$

(5/7) Latest Coastal Waters Forecast by KLWX
Issued 9/15/2026 4:57 AM America/New_York.
Valid through 9/15/2026 7:00 PM America/New_York.

fzus51 klwx 150857
cwflwx
expires:202609152300;;482441

coastal waters forecast
national weather service baltimore md/washington dc
457 am edt tue sep 15 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.


anz535-152300-
tidal potomac from key bridge to indian head-
457 am edt tue sep 15 2026

.rest of the overnight...n winds 5 kt. waves less than 1 ft. 
.today...e winds 5 kt. waves less than 1 ft. 
.tonight...s winds around 5 kt. waves 1 ft. 
.wed...s winds around 5 kt. waves 1 ft. 
.wed night...s winds around 5 kt. waves 1 ft. 
.thu...s winds around 5 kt. waves 1 ft. 
.thu night...s winds around 5 kt. waves 1 ft. 
.fri...n winds around 5 kt. waves 1 ft. a chance of showers through
the night. 
.sat...e winds 5 to 10 kt...becoming s after midnight. waves 1 ft.  

$$

(6/7) Latest Coastal Waters Forecast by KLWX
Issued 9/15/2026 4:57 AM America/New_York.
Valid through 9/15/2026 7:00 PM America/New_York.

fzus51 klwx 150857
cwflwx
expires:202609152300;;482442

coastal waters forecast
national weather service baltimore md/washington dc
457 am edt tue sep 15 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.


anz536-152300-
tidal potomac from indian head to cobb island-
457 am edt tue sep 15 2026

.rest of the overnight...ne winds 5 kt. waves less than 1 ft. 
.today...e winds around 5 kt. waves 1 ft. 
.tonight...s winds around 5 kt. waves 1 ft. 
.wed...s winds around 5 kt. waves 1 ft. 
.wed night...s winds 5 kt. waves less than 1 ft. 
.thu...s winds 5 kt. waves less than 1 ft. 
.thu night...s winds 5 kt. waves less than 1 ft. 
.fri...n winds 5 kt...becoming ne after midnight. waves 1 ft. a
chance of showers through the night. 
.sat...e winds 5 to 10 kt...becoming s after midnight. waves 1 ft.  

$$

(7/7) Latest Coastal Waters Forecast by KLWX
Issued 9/15/2026 4:57 AM America/New_York.
Valid through 9/15/2026 7:00 PM America/New_York.

fzus51 klwx 150857
cwflwx
expires:202609152300;;482443

coastal waters forecast
national weather service baltimore md/washington dc
457 am edt tue sep 15 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.


anz537-152300-
tidal potomac from cobb island to smith point-
457 am edt tue sep 15 2026

...small craft advisory in effect until 7 am edt this morning...

.rest of the overnight...ne winds 15 kt with gusts to 20 kt. waves
2 ft. 
.today...e winds 5 to 10 kt. waves 1 to 2 ft. 
.tonight...se winds 5 to 10 kt. waves 1 ft. 
.wed...se winds around 5 kt. waves 1 ft or less. 
.wed night...s winds 5 kt. waves less than 1 ft. 
.thu...s winds 5 to 10 kt. waves 1 ft or less. 
.thu night...s winds 5 to 10 kt. waves 1 ft. 
.fri...w winds 5 to 10 kt...becoming ne. waves 1 to 2 ft. a chance
of showers in the afternoon. 
.sat...e winds 10 to 15 kt...becoming se. waves 2 ft.  

$$