307  
FZUS51 KLWX 151828  
CWFLWX  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
228 PM EDT FRI MAY 15 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.  
 
ANZ500-160800-  
228 PM EDT FRI MAY 15 2026  
 
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...  
 
HIGH PRESSURE WILL BUILD IN FROM THE WEST THROUGH THIS EVENING  
BEFORE SLIDING OFF THE COAST THIS WEEKEND INTO EARLY NEXT WEEK.  
SMALL CRAFT ADVISORIES WILL CONTINUE THROUGH THIS AFTERNOON WITH NO  
MARINE HAZARDS EXPECTED TONIGHT INTO SATURDAY MORNING. ADDITIONAL  
SMALL CRAFT ADVISORIES EXPECTED THIS WEEKEND INTO EARLY NEXT WEEK  
FOR PORTIONS OF THE WATERS DUE TO CHANNELING.  
 
 
 
ANZ535-160800-  
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-  
228 PM EDT FRI MAY 15 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON  
 
   
THIS AFTERNOON  
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
TONIGHT  
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
W WINDS AROUND 5 KT. WAVES 1 FT.    
SUN NIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
SW WINDS 5 TO 10 KT. WAVES 1 FT.  
 
 
 
ANZ536-160800-  
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-  
228 PM EDT FRI MAY 15 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON  
 
   
THIS AFTERNOON  
NW WINDS 10 KT. WAVES 1 FT.    
TONIGHT  
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
SW WINDS AROUND 5 KT. WAVES 1 FT.    
SUN NIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT.    
MON  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
S WINDS 5 TO 10 KT. WAVES 1 FT.  
 
 
 
ANZ537-160800-  
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-  
228 PM EDT FRI MAY 15 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON  
 
   
THIS AFTERNOON  
NW WINDS 10 KT. WAVES 2 FT.    
TONIGHT  
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT NIGHT  
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.    
SUN  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN NIGHT  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON...SW WINDS AROUND 5 KT  
BECOMING S 10 TO 15 KT. WAVES 1 FT OR  
LESS...BUILDING TO 1 TO 2 FT.    
TUE  
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.  
 
 
 
ANZ530-160800-  
CHESAPEAKE BAY NORTH OF POOLES ISLAND-  
228 PM EDT FRI MAY 15 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON  
 
   
THIS AFTERNOON  
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
TONIGHT  
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT  
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
SAT NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
W WINDS 5 KT. WAVES FLAT.    
SUN NIGHT  
S WINDS AROUND 5 KT. WAVES FLAT.    
MON  
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
TUE  
S WINDS 5 TO 10 KT. WAVES 1 FT.  
 
 
 
ANZ531-160800-  
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-  
228 PM EDT FRI MAY 15 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON  
 
   
THIS AFTERNOON  
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO  
2 FT.    
TONIGHT  
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT  
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.    
SAT NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.    
SUN  
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN NIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON...S WINDS 10 TO 15 KT. WAVES 1 FT OR LESS  
BUILDING TO 2 FT.    
TUE  
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.  
 
 
 
ANZ538-160800-  
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-  
228 PM EDT FRI MAY 15 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON  
 
   
THIS AFTERNOON  
NW WINDS 10 KT. WAVES 1 FT.    
TONIGHT  
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT  
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
SAT NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
W WINDS 5 KT. WAVES FLAT.    
SUN NIGHT  
S WINDS AROUND 5 KT. WAVES FLAT.    
MON  
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
TUE  
S WINDS 5 TO 10 KT. WAVES 1 FT.  
 
 
 
ANZ539-160800-  
CHESTER RIVER TO QUEENSTOWN MD-  
228 PM EDT FRI MAY 15 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON  
 
   
THIS AFTERNOON  
NW WINDS 10 KT. WAVES 1 TO 2 FT.    
TONIGHT  
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN NIGHT  
S WINDS AROUND 5 KT. WAVES FLAT.    
MON  
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
TUE  
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.  
 
 
 
ANZ532-160800-  
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-  
228 PM EDT FRI MAY 15 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON  
 
   
THIS AFTERNOON  
NW WINDS 10 KT. WAVES 1 FT.    
TONIGHT  
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT NIGHT  
SW WINDS 5 TO 10 KT. WAVES 2 FT.    
SUN  
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN NIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON...S WINDS AROUND 5 KT...INCREASING TO 10 TO 15 KT. WAVES FLAT  
 
BUILDING TO 2 FT.    
TUE  
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.  
 
 
 
ANZ540-160800-  
EASTERN BAY-  
228 PM EDT FRI MAY 15 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON  
 
   
THIS AFTERNOON  
NW WINDS 10 KT. WAVES 1 FT.    
TONIGHT  
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
SAT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN NIGHT  
S WINDS AROUND 5 KT. WAVES FLAT.    
MON  
S WINDS 10 TO 15 KT. WAVES 1 FT OR LESS.    
TUE  
S WINDS 5 TO 10 KT. WAVES 1 FT.  
 
 
 
ANZ533-160800-  
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-  
228 PM EDT FRI MAY 15 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON  
 
   
THIS AFTERNOON  
NW WINDS 10 KT. WAVES 1 TO 2 FT.    
TONIGHT  
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT NIGHT  
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
SUN  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN NIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT.    
MON...S WINDS AROUND 5 KT...INCREASING TO 10 TO 15 KT. WAVES FLAT  
 
BUILDING TO 2 FT.    
TUE  
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.  
 
 
 
ANZ541-160800-  
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-  
228 PM EDT FRI MAY 15 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON  
 
   
THIS AFTERNOON  
NW WINDS 10 KT. WAVES 1 FT.    
TONIGHT  
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT NIGHT  
S WINDS 10 TO 15 KT. WAVES 1 FT.    
SUN  
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
SUN NIGHT  
S WINDS AROUND 5 KT. WAVES FLAT.    
MON...S WINDS 5 KT  
INCREASING TO 10 TO 15 KT. WAVES 1 FT OR LESS.   
TUE  
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.  
 
 
 
ANZ542-160800-  
PATUXENT RIVER TO BROOMES ISLAND MD-  
228 PM EDT FRI MAY 15 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON  
 
   
THIS AFTERNOON  
NW WINDS 10 KT. WAVES 1 FT.    
TONIGHT  
SW WINDS AROUND 5 KT. WAVES 1 FT.    
SAT  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN NIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT.    
MON  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
S WINDS 5 TO 10 KT. WAVES 1 FT.  
 
 
 
ANZ534-160800-  
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-  
228 PM EDT FRI MAY 15 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON  
 
   
THIS AFTERNOON  
NW WINDS 10 KT. WAVES 2 FT.    
TONIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT  
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.    
SAT NIGHT  
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
SUN  
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.    
SUN NIGHT  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON...S WINDS 5 KT  
INCREASING TO 10 TO 15 KT. WAVES 1 TO 2 FT.    
TUE...S WINDS 10 TO 15 KT. WAVES 1 FT  
BUILDING TO 2 TO 3 FT.  
 
 
 
ANZ543-160800-  
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-  
228 PM EDT FRI MAY 15 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON  
 
   
THIS AFTERNOON  
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
TONIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT  
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE LATE MORNING  
AND AFTERNOON. WAVES 1 TO 2 FT.    
SAT NIGHT  
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
SUN  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN NIGHT  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON  
S WINDS 10 TO 15 KT. WAVES 1 FT.    
TUE  
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.  
 
 
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