741   
FZUS51 KLWX 122334  
CWFLWX  
  
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
734 PM EDT FRI SEP 12 2025  
  
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.  
  
ANZ500-130800-  
734 PM EDT FRI SEP 12 2025  
  
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...  
  
AN AREA OF CANADIAN HIGH PRESSURE WILL DRIFT TOWARD NEW ENGLAND   
THROUGH SATURDAY. A DRY COLD FRONT WILL DROP THROUGH THE AREA   
SUNDAY, THEN WEDGING HIGH PRESSURE WILL RETURN FOR THE FIRST HALF OF  
 NEXT WEEK. THIS WILL RESULT IN LIGHT WINDS GENERALLY OUT OF THE   
NORTH TO NORTHEAST THROUGH AT LEAST THE NEXT SEVERAL DAYS.   
  
  
  
ANZ535-130800-  
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-  
734 PM EDT FRI SEP 12 2025  
   
TONIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT  
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT NIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT.    
SUN  
S WINDS AROUND 5 KT. WAVES 1 FT.    
SUN NIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT.    
MON  
E WINDS AROUND 5 KT. WAVES 1 FT.    
MON NIGHT  
E WINDS AROUND 5 KT. WAVES 1 FT.    
TUE  
E WINDS AROUND 5 KT. WAVES 1 FT.    
WED  
E WINDS AROUND 5 KT. WAVES 1 FT.    
  
  
  
ANZ536-130800-  
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-  
734 PM EDT FRI SEP 12 2025  
   
TONIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT  
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT NIGHT  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN  
S WINDS AROUND 5 KT. WAVES 1 FT.    
SUN NIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT.    
MON  
NE WINDS AROUND 5 KT. WAVES 1 FT.    
MON NIGHT  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
E WINDS 5 KT. WAVES LESS THAN 1 FT.    
  
  
  
ANZ537-130800-  
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-  
734 PM EDT FRI SEP 12 2025  
   
TONIGHT  
SE WINDS 5 KT. WAVES LESS THAN 1 FT.    
SAT  
NE WINDS AROUND 5 KT. WAVES 1 FT.    
SAT NIGHT  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
MON  
NE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON NIGHT  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
  
  
  
ANZ530-130800-  
CHESAPEAKE BAY NORTH OF POOLES ISLAND-  
734 PM EDT FRI SEP 12 2025  
   
TONIGHT  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
SAT  
S WINDS AROUND 5 KT. WAVES 1 FT.    
SAT NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN NIGHT  
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON  
NE WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON NIGHT  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
E WINDS 5 KT. WAVES LESS THAN 1 FT.    
  
  
  
ANZ531-130800-  
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-  
734 PM EDT FRI SEP 12 2025  
   
TONIGHT  
S WINDS 5 KT. WAVES FLAT.    
SAT  
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN NIGHT  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON  
NE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON NIGHT  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
  
  
  
ANZ538-130800-  
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-  
734 PM EDT FRI SEP 12 2025  
   
TONIGHT  
S WINDS AROUND 5 KT. WAVES FLAT.    
SAT  
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT NIGHT  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN  
S WINDS AROUND 5 KT. WAVES FLAT.    
SUN NIGHT  
S WINDS AROUND 5 KT. WAVES FLAT.    
MON  
NE WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON NIGHT  
E WINDS 5 KT. WAVES LESS THAN 1 FT.    
TUE  
E WINDS AROUND 5 KT. WAVES 1 FT.    
WED  
E WINDS 5 KT. WAVES LESS THAN 1 FT.    
  
  
  
ANZ539-130800-  
CHESTER RIVER TO QUEENSTOWN MD-  
734 PM EDT FRI SEP 12 2025  
   
TONIGHT  
SE WINDS 5 KT. WAVES FLAT.    
SAT  
S WINDS AROUND 5 KT. WAVES FLAT.    
SAT NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN NIGHT  
SW WINDS 5 KT. WAVES FLAT.    
MON  
NE WINDS 5 KT. WAVES FLAT.    
MON NIGHT  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
E WINDS 5 KT. WAVES LESS THAN 1 FT.    
  
  
  
ANZ532-130800-  
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-  
734 PM EDT FRI SEP 12 2025  
   
TONIGHT  
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
SAT  
SE WINDS AROUND 5 KT. WAVES FLAT.    
SAT NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
MON  
NE WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON NIGHT  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
  
  
  
ANZ540-130800-  
EASTERN BAY-  
734 PM EDT FRI SEP 12 2025  
   
TONIGHT  
SE WINDS 5 KT. WAVES FLAT.    
SAT  
SW WINDS AROUND 5 KT. WAVES FLAT.    
SAT NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN NIGHT  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON  
NE WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON NIGHT  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
  
  
  
ANZ533-130800-  
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-  
734 PM EDT FRI SEP 12 2025  
   
TONIGHT  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
SAT  
NE WINDS AROUND 5 KT. WAVES FLAT.    
SAT NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
MON  
NE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON NIGHT  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
  
  
  
ANZ541-130800-  
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-  
734 PM EDT FRI SEP 12 2025  
   
TONIGHT  
SE WINDS 5 KT. WAVES LESS THAN 1 FT.    
SAT  
N WINDS AROUND 5 KT. WAVES FLAT. PATCHY DENSE FOG. VSBY 1 NM  
OR LESS.    
SAT NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
MON  
NE WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON NIGHT  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
  
  
  
ANZ542-130800-  
PATUXENT RIVER TO BROOMES ISLAND MD-  
734 PM EDT FRI SEP 12 2025  
   
TONIGHT  
SE WINDS AROUND 5 KT. WAVES 1 FT.    
SAT  
NE WINDS AROUND 5 KT. WAVES 1 FT.    
SAT NIGHT  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN NIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT.    
MON  
NE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON NIGHT  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
  
  
  
ANZ534-130800-  
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-  
734 PM EDT FRI SEP 12 2025  
   
TONIGHT  
E WINDS 5 KT. WAVES LESS THAN 1 FT.    
SAT  
N WINDS 5 KT. WAVES LESS THAN 1 FT.    
SAT NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
MON  
NE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON NIGHT  
E WINDS 10 KT. WAVES 1 FT.    
TUE  
E WINDS 10 KT. WAVES 1 TO 2 FT.    
WED  
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH  
THE NIGHT.    
  
  
  
ANZ543-130800-  
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-  
734 PM EDT FRI SEP 12 2025  
   
TONIGHT  
E WINDS 5 KT. WAVES LESS THAN 1 FT.    
SAT  
N WINDS 5 KT. WAVES LESS THAN 1 FT.    
SAT NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
SUN NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
MON  
NE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON NIGHT  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
E WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH  
THE NIGHT.    
  
  
 
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