873  
FZUS51 KLWX 050857  
CWFLWX  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
457 AM 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.  
 
ANZ500-052300-  
457 AM 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.  
 
 
 
ANZ535-052300-  
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-  
457 AM EDT SAT SEP 5 2026  
   
REST OF THE OVERNIGHT  
NW WINDS 5 KT. WAVES LESS THAN 1 FT.    
TODAY  
N WINDS AROUND 5 KT. WAVES 1 FT.    
TONIGHT  
NE WINDS AROUND 5 KT. WAVES 1 FT.    
SUN  
NE WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN NIGHT  
E 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  
S WINDS AROUND 5 KT. WAVES 1 FT.    
WED  
SW WINDS 5 TO 10 KT. WAVES 1 FT.  
 
 
 
ANZ536-052300-  
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-  
457 AM EDT SAT SEP 5 2026  
   
REST OF THE OVERNIGHT  
NW WINDS 5 KT. WAVES LESS THAN 1 FT.    
TODAY  
N WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.    
TONIGHT  
NE WINDS 5 KT. WAVES LESS THAN 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  
S WINDS AROUND 5 KT. WAVES 1 FT.    
WED  
SW WINDS 10 TO 15 KT. WAVES 1 FT.  
 
 
 
ANZ537-052300-  
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-  
457 AM EDT SAT SEP 5 2026  
   
REST OF THE OVERNIGHT  
NW WINDS 10 KT. WAVES 1 FT.    
TODAY  
N WINDS 5 TO 10 KT. WAVES 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 TO 2 FT.    
MON  
NE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON NIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT.    
TUE  
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
WED  
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.  
 
 
 
ANZ530-052300-  
CHESAPEAKE BAY NORTH OF POOLES ISLAND-  
457 AM EDT SAT SEP 5 2026  
   
REST OF THE OVERNIGHT  
N WINDS 5 KT. WAVES LESS THAN 1 FT.    
TODAY  
N WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT  
N 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.    
MON  
N WINDS AROUND 5 KT. WAVES 1 FT.    
MON NIGHT  
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
TUE  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.  
 
 
 
ANZ531-052300-  
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-  
457 AM EDT SAT SEP 5 2026  
   
REST OF THE OVERNIGHT  
N WINDS 10 KT. WAVES 1 FT.    
TODAY  
N WINDS 5 TO 10 KT. WAVES 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 OR LESS.    
MON NIGHT  
S 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.  
 
 
 
ANZ538-052300-  
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-  
457 AM EDT SAT SEP 5 2026  
   
REST OF THE OVERNIGHT  
NW WINDS 5 KT. WAVES FLAT.    
TODAY  
N WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT  
NE 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  
SW WINDS AROUND 5 KT. WAVES FLAT.    
TUE  
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
WED  
SW WINDS 10 TO 15 KT. WAVES 1 FT.  
 
 
 
ANZ539-052300-  
CHESTER RIVER TO QUEENSTOWN MD-  
457 AM EDT SAT SEP 5 2026  
   
REST OF THE OVERNIGHT  
NW WINDS 10 KT. WAVES 1 FT.    
TODAY  
N WINDS 5 TO 10 KT. WAVES 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  
S WINDS AROUND 5 KT. WAVES FLAT.    
TUE  
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
WED  
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.  
 
 
 
ANZ532-052300-  
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-  
457 AM EDT SAT SEP 5 2026  
   
REST OF THE OVERNIGHT  
NW WINDS 10 KT. WAVES 1 FT.    
TODAY  
N WINDS 5 TO 10 KT. WAVES 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 LESS THAN 1 FT.    
TUE  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
WED...SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT  
BUILDING TO 3 FT.  
 
 
 
ANZ540-052300-  
EASTERN BAY-  
457 AM EDT SAT SEP 5 2026  
   
REST OF THE OVERNIGHT  
NW WINDS 10 KT. WAVES 1 FT.    
TODAY  
N WINDS 5 TO 10 KT. WAVES 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  
S WINDS AROUND 5 KT. WAVES FLAT.    
TUE  
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
WED  
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.  
 
 
 
ANZ533-052300-  
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-  
457 AM EDT SAT SEP 5 2026  
   
REST OF THE OVERNIGHT  
NW WINDS 10 KT. WAVES 1 FT.    
TODAY  
N WINDS 5 TO 10 KT. WAVES 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 AROUND 5 KT. WAVES 1 FT OR LESS.    
TUE  
SW WINDS 10 TO 15 KT. WAVES 1 FT.    
WED  
SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.  
 
 
 
ANZ541-052300-  
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-  
457 AM EDT SAT SEP 5 2026  
   
REST OF THE OVERNIGHT  
NW WINDS 10 KT. WAVES 1 FT.    
TODAY  
N WINDS 5 TO 10 KT. WAVES 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 OR LESS.    
MON NIGHT  
S 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.  
 
 
 
ANZ542-052300-  
PATUXENT RIVER TO BROOMES ISLAND MD-  
457 AM EDT SAT SEP 5 2026  
   
REST OF THE OVERNIGHT  
NW WINDS 5 KT. WAVES LESS THAN 1 FT.    
TODAY  
N WINDS 5 TO 10 KT. WAVES 1 FT.    
TONIGHT  
NE WINDS 5 KT. WAVES LESS THAN 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  
S WINDS AROUND 5 KT. WAVES 1 FT.    
WED  
SW WINDS 5 TO 10 KT. WAVES 1 FT.  
 
 
 
ANZ534-052300-  
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-  
457 AM EDT SAT SEP 5 2026  
   
REST OF THE OVERNIGHT  
NW WINDS 10 KT. WAVES 2 FT.    
TODAY  
N WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.    
TONIGHT  
NE WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
NE WINDS 10 KT. WAVES 1 FT.    
SUN NIGHT  
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 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 10 TO 15 KT. WAVES 1 TO  
2 FT.    
WED...SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT  
BUILDING TO 3 FT.  
 
 
 
ANZ543-052300-  
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-  
457 AM EDT SAT SEP 5 2026  
   
REST OF THE OVERNIGHT  
NW WINDS 10 KT. WAVES 1 FT.    
TODAY  
N WINDS 5 TO 10 KT. WAVES 1 FT.    
TONIGHT  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
NE WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN NIGHT  
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.  
WAVES 1 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 10 TO 15 KT. WAVES 1 FT OR LESS.    
WED...SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT  
BUILDING TO 3 FT  
AFTER MIDNIGHT.  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab VA Page
The Nexlab MD Page
The Nexlab WV Page
Main Text Page