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Home : xt_USA : xt_Great Lakes : Weather Bulletin

(1/7) Latest Coastal Waters Forecast by KLWX
Issued 9/15/2026 12:45 PM America/New_York.
Valid through 9/16/2026 4:00 AM America/New_York.

fzus51 klwx 151645
cwflwx
expires:202609160800;;498698

coastal waters forecast
national weather service baltimore md/washington dc
1245 pm 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.


anz531-160800-
chesapeake bay from pooles island to sandy point-
1245 pm edt tue sep 15 2026

.this afternoon...s winds 5 kt. waves less than 1 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 5 to 10 kt. waves 1 ft. 
.thu night...s winds 10 to 15 kt...becoming sw 5 to 10 kt after
midnight. 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 12:45 PM America/New_York.
Valid through 9/16/2026 4:00 AM America/New_York.

fzus51 klwx 151645
cwflwx
expires:202609160800;;498701

coastal waters forecast
national weather service baltimore md/washington dc
1245 pm 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.


anz532-160800-
chesapeake bay from sandy point to north beach-
1245 pm edt tue sep 15 2026

.this afternoon...s winds 5 kt. waves less than 1 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. gusts up to 20 kt in the afternoon.
waves 1 to 2 ft. 
.thu night...s winds 10 to 15 kt with gusts to 20 kt...becoming sw
5 to 10 kt after midnight. waves 2 ft. 
.fri...nw winds 10 to 15 kt...becoming ne after midnight. waves 1 to
2 ft. 
.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 12:45 PM America/New_York.
Valid through 9/16/2026 4:00 AM America/New_York.

fzus51 klwx 151645
cwflwx
expires:202609160800;;498703

coastal waters forecast
national weather service baltimore md/washington dc
1245 pm 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.


anz533-160800-
chesapeake bay from north beach to drum point-
1245 pm edt tue sep 15 2026

.this afternoon...se winds 5 kt. waves less than 1 ft. 
.tonight...s 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 10 to 15 kt. waves 1 to 2 ft. 
.thu night...s winds 10 to 15 kt. waves 1 to 2 ft. 
.fri...nw winds 10 to 15 kt...becoming ne. waves 1 to 2 ft. 
.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 12:45 PM America/New_York.
Valid through 9/16/2026 4:00 AM America/New_York.

fzus51 klwx 151645
cwflwx
expires:202609160800;;498706

coastal waters forecast
national weather service baltimore md/washington dc
1245 pm 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.


anz534-160800-
chesapeake bay from drum point to smith point-
1245 pm edt tue sep 15 2026

.this afternoon...se winds 5 kt. waves less than 1 ft. 
.tonight...se winds 5 to 10 kt. waves 1 ft. 
.wed...se winds 5 to 10 kt. waves 1 ft or less. 
.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. 
.sat...e winds 10 to 15 kt...becoming se. waves 2 ft.  

$$

(5/7) Latest Coastal Waters Forecast by KLWX
Issued 9/15/2026 12:45 PM America/New_York.
Valid through 9/16/2026 4:00 AM America/New_York.

fzus51 klwx 151645
cwflwx
expires:202609160800;;498694

coastal waters forecast
national weather service baltimore md/washington dc
1245 pm 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.


anz535-160800-
tidal potomac from key bridge to indian head-
1245 pm edt tue sep 15 2026

.this afternoon...se 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...sw winds around 5 kt. waves 1 ft. a chance of showers. 
.fri...n winds 5 to 10 kt. waves 1 ft. 
.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 12:45 PM America/New_York.
Valid through 9/16/2026 4:00 AM America/New_York.

fzus51 klwx 151645
cwflwx
expires:202609160800;;498695

coastal waters forecast
national weather service baltimore md/washington dc
1245 pm 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.


anz536-160800-
tidal potomac from indian head to cobb island-
1245 pm edt tue sep 15 2026

.this afternoon...se 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 5 kt. waves less than 1 ft. 
.thu...s winds 5 kt. waves less than 1 ft. 
.thu night...sw winds 5 kt. waves less than 1 ft. 
.fri...n winds 5 to 10 kt...becoming ne. waves 1 ft. 
.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 12:45 PM America/New_York.
Valid through 9/16/2026 4:00 AM America/New_York.

fzus51 klwx 151645
cwflwx
expires:202609160800;;498696

coastal waters forecast
national weather service baltimore md/washington dc
1245 pm 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.


anz537-160800-
tidal potomac from cobb island to smith point-
1245 pm edt tue sep 15 2026

.this afternoon...se winds 5 kt. waves less than 1 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 to 10 kt. waves 1 ft or less. 
.thu night...s winds 5 to 10 kt. waves 1 ft. 
.fri...nw winds 5 to 10 kt...becoming ne. waves 1 to 2 ft. 
.sat...e winds 10 to 15 kt...becoming se. waves 2 ft.  

$$