423
FZUS51 KLWX 282057
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
457 PM EDT FRI AUG 28 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.
ANZ500-290800-
457 PM EDT FRI AUG 28 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A COLD FRONT WILL MOVE SOUTH OF THE WATERS BY TONIGHT. HIGH PRESSURE
WILL BUILD NORTH OF THE AREA THIS WEEKEND. WINDS LIKELY REMAIN
BELOW SMALL CRAFT ADVISORY, THOUGH CANNOT RULE OUT A FEW PERIODS OF
NEAR SCA WINDS IN SOUTHERLY CHANNELING EARLY NEXT WEEK.
ANZ535-290800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
457 PM EDT FRI AUG 28 2026
REST OF THIS AFTERNOON
N WINDS 5 KT. WAVES LESS THAN 1 FT.
ISOLATED SHOWERS AND TSTMS.
TONIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SAT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
MON
SW WINDS AROUND 5 KT. WAVES 1 FT.
TUE
SW WINDS AROUND 5 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-290800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
457 PM EDT FRI AUG 28 2026
REST OF THIS AFTERNOON
N WINDS 5 KT. WAVES LESS THAN 1 FT.
ISOLATED SHOWERS AND TSTMS.
TONIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-290800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
457 PM EDT FRI AUG 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT SATURDAY THROUGH
SATURDAY MORNING...
REST OF THIS AFTERNOON
N WINDS 5 KT. WAVES LESS THAN 1 FT.
SCATTERED SHOWERS AND TSTMS.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS AND
TSTMS.
SAT...NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING E 5 KT
LATE. WAVES 1 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON...W WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT OR LESS.
TUE
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-290800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
457 PM EDT FRI AUG 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT SATURDAY THROUGH
SATURDAY MORNING...
REST OF THIS AFTERNOON
N WINDS 5 KT. WAVES FLAT. ISOLATED SHOWERS
AND TSTMS.
TONIGHT
NE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.
WAVES 1 FT OR LESS.
SAT
NE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE MORNING. WAVES
1 FT OR LESS.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS AROUND 5 KT. WAVES FLAT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-290800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
457 PM EDT FRI AUG 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT SATURDAY THROUGH
SATURDAY MORNING...
REST OF THIS AFTERNOON
NE WINDS 5 KT. WAVES FLAT. ISOLATED
SHOWERS AND TSTMS.
TONIGHT...NE WINDS 5 KT
INCREASING TO 10 TO 15 KT WITH GUSTS TO
20 KT AFTER MIDNIGHT. WAVES 1 FT.
SAT...NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING TO
AROUND 5 KT LATE. WAVES 1 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
MON
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-290800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
457 PM EDT FRI AUG 28 2026
REST OF THIS AFTERNOON
NE WINDS 5 KT. WAVES FLAT. ISOLATED
SHOWERS AND TSTMS.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS AROUND 5 KT. WAVES FLAT.
TUE
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-290800-
CHESTER RIVER TO QUEENSTOWN MD-
457 PM EDT FRI AUG 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT SATURDAY THROUGH
SATURDAY MORNING...
REST OF THIS AFTERNOON
N WINDS 5 KT. WAVES FLAT. ISOLATED SHOWERS
AND TSTMS.
TONIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT
NE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE MORNING. WAVES
1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE
S WINDS 5 KT. WAVES LESS THAN 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-290800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
457 PM EDT FRI AUG 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT SATURDAY THROUGH
SATURDAY MORNING...
REST OF THIS AFTERNOON
NE WINDS 10 KT. WAVES 1 FT. ISOLATED
SHOWERS AND TSTMS.
TONIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT...NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING TO
5 KT LATE. WAVES 1 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-290800-
EASTERN BAY-
457 PM EDT FRI AUG 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT SATURDAY THROUGH
SATURDAY MORNING...
REST OF THIS AFTERNOON
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
ISOLATED SHOWERS AND TSTMS.
TONIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT
NE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE MORNING. WAVES
1 FT.
SAT NIGHT
SE WINDS 5 KT. WAVES FLAT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-290800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
457 PM EDT FRI AUG 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT SATURDAY THROUGH
SATURDAY MORNING...
REST OF THIS AFTERNOON
N WINDS 10 KT. WAVES 1 FT. SCATTERED
SHOWERS AND TSTMS.
TONIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SCATTERED SHOWERS AND TSTMS.
SAT...NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING N 5 KT
LATE. WAVES 1 TO 2 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...S WINDS 5 KT
INCREASING TO 10 TO 15 KT WITH GUSTS TO 20 KT
IN THE AFTERNOON. WAVES 1 TO 2 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON...NW WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT OR LESS.
TUE
S WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-290800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
457 PM EDT FRI AUG 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT SATURDAY THROUGH
SATURDAY MORNING...
REST OF THIS AFTERNOON
N WINDS 10 KT. WAVES 1 FT. SCATTERED
SHOWERS AND TSTMS.
TONIGHT...NE WINDS 5 KT
INCREASING TO 10 TO 15 KT WITH GUSTS TO
20 KT LATE. WAVES 1 FT.
SAT...NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING TO
5 KT LATE. WAVES 1 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT.
MON...W WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT OR LESS.
TUE
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-290800-
PATUXENT RIVER TO BROOMES ISLAND MD-
457 PM EDT FRI AUG 28 2026
REST OF THIS AFTERNOON
N WINDS 10 KT. WAVES 1 FT. SCATTERED
SHOWERS AND TSTMS.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS AND
TSTMS.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON
S WINDS AROUND 5 KT. WAVES 1 FT.
TUE
S WINDS AROUND 5 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-290800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
457 PM EDT FRI AUG 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT SATURDAY THROUGH
SATURDAY MORNING...
REST OF THIS AFTERNOON
N WINDS 10 KT. WAVES 1 FT. SCATTERED
SHOWERS AND TSTMS.
TONIGHT
NE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT LATE. WAVES 1 FT.
SCATTERED SHOWERS AND TSTMS.
SAT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING. WAVES
1 TO 2 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...SE WINDS 5 KT
BECOMING S 10 TO 15 KT WITH GUSTS TO 20 KT IN
THE AFTERNOON. WAVES 1 TO 2 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON...W WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
TUE
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-290800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
457 PM EDT FRI AUG 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT SATURDAY THROUGH
SATURDAY MORNING...
REST OF THIS AFTERNOON
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
SCATTERED SHOWERS AND TSTMS.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS AND
TSTMS.
SAT...NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING E 5 KT
LATE. WAVES 1 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
S WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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