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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 8/4/2026 4:57 PM America/New_York.
Valid through 8/5/2026 4:00 AM America/New_York.

fzus51 klwx 042057
cwflwx
expires:202608050800;;625241

coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt tue aug 4 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.


anz531-050800-
chesapeake bay from pooles island to sandy point-
457 pm edt tue aug 4 2026

.rest of this afternoon...e winds 5 kt. waves less than 1 ft. 
.tonight...e winds 5 to 10 kt. waves 1 ft. 
.wed...se winds 5 to 10 kt. waves 1 ft. showers likely with a chance
of tstms. 
.wed night...s winds 5 to 10 kt. waves 1 ft. a chance of showers and
tstms. 
.thu...s winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft. 
.thu night...sw winds 10 to 15 kt. gusts up to 20 kt in the evening.
waves 1 to 2 ft. a chance of showers and tstms. 
.fri...sw winds 5 to 10 kt. waves 1 ft. a chance of showers and
tstms. 
.sat...sw winds 5 to 10 kt. waves 1 ft. a chance of showers and
tstms through the night. a chance of showers after midnight.  

winds and waves higher and visibilities lower in and near tstms.

$$

(2/7) Latest Coastal Waters Forecast by KLWX
Issued 8/4/2026 4:57 PM America/New_York.
Valid through 8/5/2026 4:00 AM America/New_York.

fzus51 klwx 042057
cwflwx
expires:202608050800;;625244

coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt tue aug 4 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.


anz532-050800-
chesapeake bay from sandy point to north beach-
457 pm edt tue aug 4 2026

.rest of this afternoon...ne winds 5 kt. waves less than 1 ft. 
.tonight...e winds 5 to 10 kt. waves 1 ft. a chance of showers. 
.wed...se winds 5 to 10 kt. waves 1 ft. a chance of showers and
tstms. 
.wed night...s winds 10 kt. waves 1 to 2 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. a chance of
showers and tstms. 
.fri...sw winds 5 to 10 kt. waves 1 ft. a chance of showers and
tstms. 
.sat...sw winds 5 to 10 kt. waves 1 ft. a chance of showers and
tstms.  

winds and waves higher and visibilities lower in and near tstms.

$$

(3/7) Latest Coastal Waters Forecast by KLWX
Issued 8/4/2026 4:57 PM America/New_York.
Valid through 8/5/2026 4:00 AM America/New_York.

fzus51 klwx 042057
cwflwx
expires:202608050800;;625246

coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt tue aug 4 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.


anz533-050800-
chesapeake bay from north beach to drum point-
457 pm edt tue aug 4 2026

.rest of this afternoon...ne winds 5 kt. waves less than 1 ft. a
slight chance of showers and tstms. 
.tonight...e winds 5 to 10 kt. waves 1 ft. a chance of showers. 
.wed...se winds 5 to 10 kt. waves 1 ft. a chance of showers. 
.wed night...s winds 10 kt. waves 2 ft. 
.thu...s winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft. 
.thu night...s winds 10 to 15 kt with gusts to 20 kt. waves 1 to
2 ft. 
.fri...sw winds 5 to 10 kt. waves 1 ft. a chance of showers and
tstms through the night. 
.sat...sw winds 5 to 10 kt. waves 1 ft. a chance of showers and
tstms.  

winds and waves higher and visibilities lower in and near tstms.

$$

(4/7) Latest Coastal Waters Forecast by KLWX
Issued 8/4/2026 4:57 PM America/New_York.
Valid through 8/5/2026 4:00 AM America/New_York.

fzus51 klwx 042057
cwflwx
expires:202608050800;;625249

coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt tue aug 4 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.


anz534-050800-
chesapeake bay from drum point to smith point-
457 pm edt tue aug 4 2026

.rest of this afternoon...e winds 10 kt. waves 1 ft. a chance of
showers with a slight chance of tstms. 
.tonight...se winds 5 to 10 kt. waves 1 ft. showers likely with a
chance of tstms. 
.wed...s winds 10 to 15 kt. waves 1 to 2 ft. a chance of showers. 
.wed night...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. 
.thu...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. 
.thu night...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. 
.fri...sw winds 10 to 15 kt. waves 2 ft. a chance of showers and
tstms through the night. 
.sat...sw winds 10 kt. waves 2 ft. a chance of showers.  

winds and waves higher and visibilities lower in and near tstms.

$$

(5/7) Latest Coastal Waters Forecast by KLWX
Issued 8/4/2026 4:57 PM America/New_York.
Valid through 8/5/2026 4:00 AM America/New_York.

fzus51 klwx 042057
cwflwx
expires:202608050800;;625237

coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt tue aug 4 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.


anz535-050800-
tidal potomac from key bridge to indian head-
457 pm edt tue aug 4 2026

.rest of this afternoon...e winds 5 kt. waves less than 1 ft. 
.tonight...e winds around 5 kt. waves 1 ft. showers likely. 
.wed...se winds around 5 kt. waves 1 ft. showers likely with a
chance of tstms. patchy fog. vsby 1 nm or less. 
.wed night...s winds 5 kt. waves less than 1 ft. a chance of showers
and tstms. 
.thu...sw winds 5 to 10 kt with gusts to 20 kt. waves 1 ft. 
.thu night...sw winds 5 to 10 kt. waves 1 ft. a chance of showers
and tstms. 
.fri...sw winds 5 to 10 kt. waves 1 ft. a chance of showers and
tstms. 
.sat...sw winds around 5 kt. waves 1 ft. a chance of showers and
tstms through the night. a chance of showers after midnight.  

winds and waves higher and visibilities lower in and near tstms.

$$

(6/7) Latest Coastal Waters Forecast by KLWX
Issued 8/4/2026 4:57 PM America/New_York.
Valid through 8/5/2026 4:00 AM America/New_York.

fzus51 klwx 042057
cwflwx
expires:202608050800;;625238

coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt tue aug 4 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.


anz536-050800-
tidal potomac from indian head to cobb island-
457 pm edt tue aug 4 2026

.rest of this afternoon...e winds 5 kt. waves less than 1 ft. a
slight chance of showers and tstms. 
.tonight...e winds 5 to 10 kt. waves 1 ft. showers likely with a
chance of tstms. 
.wed...se winds around 5 kt. waves 1 ft. showers likely with a
chance of tstms. patchy fog. vsby 1 nm or less. 
.wed night...s winds 5 to 10 kt. waves 1 ft. 
.thu...sw winds 5 to 10 kt. waves 1 ft. 
.thu night...sw winds 5 to 10 kt. waves 1 ft. 
.fri...sw winds 5 to 10 kt. waves 1 ft. a chance of showers and
tstms through the night. 
.sat...sw winds 5 to 10 kt. waves 1 ft. a chance of showers and
tstms through the night. a chance of showers after midnight.  

winds and waves higher and visibilities lower in and near tstms.

$$

(7/7) Latest Coastal Waters Forecast by KLWX
Issued 8/4/2026 4:57 PM America/New_York.
Valid through 8/5/2026 4:00 AM America/New_York.

fzus51 klwx 042057
cwflwx
expires:202608050800;;625239

coastal waters forecast
national weather service baltimore md/washington dc
457 pm edt tue aug 4 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.


anz537-050800-
tidal potomac from cobb island to smith point-
457 pm edt tue aug 4 2026

.rest of this afternoon...e winds 10 kt. waves 1 ft. a chance of
showers with a slight chance of tstms. 
.tonight...se winds 5 to 10 kt. waves 1 ft. showers likely with a
chance of tstms. 
.wed...s winds 5 to 10 kt. waves 1 ft. a chance of showers and
tstms. 
.wed night...s winds 5 to 10 kt. waves 1 ft. 
.thu...sw winds 5 to 10 kt. waves 1 ft. 
.thu night...sw winds 10 kt. waves 1 ft. 
.fri...sw winds 5 to 10 kt. waves 1 ft. a chance of showers and
tstms through the night. 
.sat...sw winds 5 to 10 kt. waves 1 ft. a chance of showers and
tstms through the night. a chance of showers after midnight.  

winds and waves higher and visibilities lower in and near tstms.

$$