477
FZUS51 KLWX 052057
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
457 PM EDT SAT SEP 5 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.
ANZ500-060800-
457 PM EDT SAT SEP 5 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A FEW SPOTTY SHOWER OR T-STORM IS POSSIBLE HEADING INTO EARLY
SATURDAY MORNING AS THE FRONT SAGS SOUTH ACROSS THE WATERS. WINDS
WILL SWITCH FROM THE WEST TO NORTHWEST AND EVENTUALLY NORTH SATURDAY
AFTERNOON AT LESS THAN 15 KNOTS. MARGINAL SMALL CRAFT CONDITIONS
RETURN LATE SUNDAY EVENING INTO MONDAY DUE TO CHANNELING.
ANZ535-060800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
457 PM EDT SAT SEP 5 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.
SUN
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
NE WINDS AROUND 5 KT. WAVES 1 FT.
MON NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE
SW WINDS AROUND 5 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-060800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
457 PM EDT SAT SEP 5 2026
REST OF THIS AFTERNOON
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SCATTERED SHOWERS WITH ISOLATED TSTMS.
TONIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON
NE WINDS AROUND 5 KT. WAVES 1 FT.
MON NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
TUE
SW WINDS AROUND 5 KT. WAVES 1 FT.
WED
SW WINDS 10 TO 15 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-060800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
457 PM EDT SAT SEP 5 2026
REST OF THIS AFTERNOON
NE WINDS 10 KT. WAVES 1 FT. ISOLATED
SHOWERS AND TSTMS.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
TUE...SW WINDS AROUND 5 KT
BECOMING S. WAVES 1 FT OR LESS.
WED
SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-060800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
457 PM EDT SAT SEP 5 2026
REST OF THIS AFTERNOON
N WINDS 5 KT. WAVES FLAT.
TONIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
NE WINDS AROUND 5 KT. WAVES FLAT.
MON NIGHT
NW WINDS AROUND 5 KT. WAVES FLAT.
TUE...SW WINDS AROUND 5 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT
OR LESS.
WED
SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
ANZ531-060800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
457 PM EDT SAT SEP 5 2026
REST OF THIS AFTERNOON
N WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
MON
NE WINDS AROUND 5 KT. WAVES 1 FT.
MON NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
TUE...SW WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT OR LESS.
WED...SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT
BUILDING TO 3 FT.
ANZ538-060800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
457 PM EDT SAT SEP 5 2026
REST OF THIS AFTERNOON
N WINDS 5 KT. WAVES FLAT.
TONIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
NE WINDS 5 KT. WAVES FLAT.
MON NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
TUE...SW WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT OR LESS.
WED
SW WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ539-060800-
CHESTER RIVER TO QUEENSTOWN MD-
457 PM EDT SAT SEP 5 2026
REST OF THIS AFTERNOON
N WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
NE WINDS AROUND 5 KT. WAVES FLAT.
MON NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
TUE...SW WINDS AROUND 5 KT
BECOMING S. WAVES 1 FT OR LESS.
WED
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ532-060800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
457 PM EDT SAT SEP 5 2026
REST OF THIS AFTERNOON
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NE WINDS 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
MON
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
MON NIGHT
S WINDS 5 KT. WAVES FLAT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
WED...SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT
BUILDING TO 3 FT.
ANZ540-060800-
EASTERN BAY-
457 PM EDT SAT SEP 5 2026
REST OF THIS AFTERNOON
N WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON
NE WINDS AROUND 5 KT. WAVES FLAT.
MON NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED
SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
ANZ533-060800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
457 PM EDT SAT SEP 5 2026
REST OF THIS AFTERNOON
N WINDS 10 KT. WAVES 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NE WINDS 10 KT. WAVES 1 TO 2 FT.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
MON
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
MON NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
TUE...SW WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT OR LESS.
WED
SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
ANZ541-060800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
457 PM EDT SAT SEP 5 2026
REST OF THIS AFTERNOON
N WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
MON
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
MON NIGHT
SE WINDS 5 KT. WAVES FLAT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED
SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
ANZ542-060800-
PATUXENT RIVER TO BROOMES ISLAND MD-
457 PM EDT SAT SEP 5 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.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
MON
NE WINDS AROUND 5 KT. WAVES 1 FT.
MON NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
TUE
SW WINDS AROUND 5 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-060800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
457 PM EDT SAT SEP 5 2026
REST OF THIS AFTERNOON
N WINDS 10 KT. WAVES 1 FT. ISOLATED
SHOWERS AND TSTMS.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...SW WINDS AROUND 5 KT...BECOMING S. WAVES 1 FT OR LESS
BUILDING TO 2 FT AFTER MIDNIGHT.
WED...SW WINDS 15 TO 20 KT. WAVES 1 FT
BUILDING TO 3 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-060800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
457 PM EDT SAT SEP 5 2026
REST OF THIS AFTERNOON
N WINDS 10 KT. WAVES 1 FT. ISOLATED
SHOWERS AND TSTMS.
TONIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...W WINDS AROUND 5 KT
BECOMING S. WAVES 1 FT OR LESS.
WED
SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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