610  
FZUS51 KLWX 301948  
CWFLWX  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
348 PM EDT SUN AUG 30 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.  
 
ANZ500-310800-  
348 PM EDT SUN AUG 30 2026  
 
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...  
 
HIGH PRESSURE WILL BUILD SOUTH OF THE WATERS THROUGH MID WEEK WITH  
SCATTERED DIURNAL SHOWERS AND THUNDERSTORMS EXPECTED IN A HOT AND  
HUMID AIR MASS.  
 

 
 
ANZ535-310800-  
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-  
348 PM EDT SUN AUG 30 2026  
   
REST OF THIS AFTERNOON
 
S WINDS 10 KT. WAVES 1 FT. SCATTERED  
SHOWERS.    
TONIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
MON
 
NW WINDS AROUND 5 KT. WAVES 1 FT.    
MON NIGHT
 
S WINDS AROUND 5 KT. WAVES 1 FT.    
TUE
 
W WINDS AROUND 5 KT. WAVES 1 FT.    
TUE NIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT.    
WED
 
SW WINDS AROUND 5 KT. WAVES 1 FT.    
THU
 
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.  
 

 
 
ANZ536-310800-  
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-  
348 PM EDT SUN AUG 30 2026  
   
REST OF THIS AFTERNOON
 
S WINDS 10 KT. WAVES 1 FT. ISOLATED  
SHOWERS.    
TONIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
MON
 
SW WINDS AROUND 5 KT. WAVES 1 FT.    
MON NIGHT
 
S WINDS AROUND 5 KT. WAVES 1 FT.    
TUE
 
W WINDS AROUND 5 KT. WAVES 1 FT.    
TUE NIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT.    
WED
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
THU
 
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.  
 

 
 
ANZ537-310800-  
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-  
348 PM EDT SUN AUG 30 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT MONDAY
 
 
   
REST OF THIS AFTERNOON
 
SE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES  
1 FT.    
TONIGHT
 
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.    
MON...W WINDS 5 TO 10 KT
 
BECOMING SE LATE. WAVES 1 FT.    
MON NIGHT
 
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
TUE
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
TUE NIGHT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
WED...S WINDS AROUND 5 KT
 
INCREASING TO 5 TO 10 KT. WAVES 1 FT.    
THU
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.  
 

 
 
ANZ530-310800-  
CHESAPEAKE BAY NORTH OF POOLES ISLAND-  
348 PM EDT SUN AUG 30 2026  
   
REST OF THIS AFTERNOON
 
SW WINDS 10 KT. WAVES 1 FT. ISOLATED  
SHOWERS AND TSTMS.    
TONIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
MON
 
NE WINDS AROUND 5 KT. WAVES FLAT.    
MON NIGHT
 
S WINDS AROUND 5 KT. WAVES FLAT.    
TUE
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
TUE NIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF  
SHOWERS AND TSTMS.    
WED
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
THU
 
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ531-310800-  
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-  
348 PM EDT SUN AUG 30 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT MONDAY
 
 
   
REST OF THIS AFTERNOON
 
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES  
2 FT. ISOLATED SHOWERS AND TSTMS.    
TONIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
 
BECOMING SW  
5 TO 10 KT LATE. WAVES 1 TO 2 FT.    
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.    
TUE NIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
WED...SW WINDS 5 KT
 
BECOMING S. WAVES 1 FT OR LESS.    
THU
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ538-310800-  
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-  
348 PM EDT SUN AUG 30 2026  
   
REST OF THIS AFTERNOON
 
SW WINDS 10 KT. WAVES 1 FT. SCATTERED  
SHOWERS WITH ISOLATED TSTMS.    
TONIGHT...S WINDS 5 TO 10 KT
 
BECOMING W LATE. WAVES 1 FT OR LESS.   
MON
 
NE WINDS 5 KT. WAVES FLAT.    
MON NIGHT
 
S WINDS AROUND 5 KT. WAVES FLAT.    
TUE
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
TUE NIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF  
SHOWERS AND TSTMS.    
WED
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
THU
 
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ539-310800-  
CHESTER RIVER TO QUEENSTOWN MD-  
348 PM EDT SUN AUG 30 2026  
   
REST OF THIS AFTERNOON
 
S WINDS 10 KT. WAVES 1 FT.    
TONIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
MON
 
NW WINDS AROUND 5 KT. WAVES FLAT.    
MON NIGHT
 
S WINDS AROUND 5 KT. WAVES FLAT.    
TUE
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
TUE NIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.   
WED
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
THU
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ532-310800-  
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-  
348 PM EDT SUN AUG 30 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT MONDAY
 
 
   
REST OF THIS AFTERNOON
 
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES  
2 FT. ISOLATED SHOWERS.    
TONIGHT...S WINDS 10 TO 15 KT
 
BECOMING SW 5 TO 10 KT LATE. GUSTS  
UP TO 20 KT. WAVES 2 FT.    
MON
 
N WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON NIGHT
 
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
TUE
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
WED...W WINDS 5 KT
 
BECOMING S. WAVES 1 FT OR LESS.    
THU
 
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE  
AFTERNOON. A CHANCE OF SHOWERS AND TSTMS THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ540-310800-  
EASTERN BAY-  
348 PM EDT SUN AUG 30 2026  
   
REST OF THIS AFTERNOON
 
S WINDS 10 KT. WAVES 1 FT.    
TONIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
MON
 
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON NIGHT
 
S WINDS 5 KT. WAVES FLAT.    
TUE
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
TUE NIGHT
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
WED
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
THU
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS IN  
THE AFTERNOON. A CHANCE OF SHOWERS AND TSTMS THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ533-310800-  
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-  
348 PM EDT SUN AUG 30 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT MONDAY
 
 
   
REST OF THIS AFTERNOON
 
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES  
2 FT. ISOLATED SHOWERS.    
TONIGHT...S WINDS 10 TO 15 KT
 
BECOMING SW LATE. GUSTS UP TO  
20 KT. WAVES 2 FT.    
MON...W WINDS 5 TO 10 KT
 
BECOMING E IN THE AFTERNOON. WAVES 1 FT  
OR LESS.    
MON NIGHT
 
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
TUE
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
WED...W WINDS 5 KT
 
BECOMING S. WAVES 1 FT.    
THU
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.  
 

 
 
ANZ541-310800-  
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-  
348 PM EDT SUN AUG 30 2026  
   
REST OF THIS AFTERNOON
 
S WINDS 15 KT. WAVES 1 FT.    
TONIGHT
 
S WINDS 10 TO 15 KT. WAVES 1 FT.    
MON
 
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON NIGHT
 
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
TUE
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
TUE NIGHT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
WED...SW WINDS 5 KT
 
BECOMING S. WAVES 1 FT OR LESS.    
THU
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.  
 

 
 
ANZ542-310800-  
PATUXENT RIVER TO BROOMES ISLAND MD-  
348 PM EDT SUN AUG 30 2026  
   
REST OF THIS AFTERNOON
 
S WINDS 10 KT. WAVES 1 FT.    
TONIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
MON
 
W 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.    
TUE NIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT.    
WED
 
SW WINDS AROUND 5 KT. WAVES 1 FT.    
THU
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.  
 

 
 
ANZ534-310800-  
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-  
348 PM EDT SUN AUG 30 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT MONDAY
 
 
   
REST OF THIS AFTERNOON
 
SE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES  
2 FT.    
TONIGHT...S WINDS 10 TO 15 KT
 
BECOMING SW LATE. GUSTS UP TO  
20 KT. WAVES 2 FT.    
MON...W WINDS 5 TO 10 KT
 
BECOMING SE IN THE AFTERNOON. WAVES  
1 FT.    
MON NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
WED...W WINDS 5 KT
 
BECOMING S. WAVES 1 FT.    
THU
 
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.  
 

 
 
ANZ543-310800-  
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-  
348 PM EDT SUN AUG 30 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT MONDAY
 
 
   
REST OF THIS AFTERNOON
 
S WINDS 10 KT WITH GUSTS TO 20 KT. WAVES  
1 FT.    
TONIGHT...S WINDS 10 TO 15 KT
 
BECOMING SW LATE. GUSTS UP TO  
20 KT. WAVES 1 FT.    
MON
 
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
MON NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
WED
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
THU
 
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.  
 

 
 
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