372  
FZUS51 KLWX 102034  
CWFLWX  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
434 PM EDT SUN AUG 10 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.  
 
ANZ500-110800-  
434 PM EDT SUN AUG 10 2025  
 
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...  
 
HIGH PRESSURE WILL REMAIN DRAPED FROM THE CANADIAN MARITIMES  
SOUTHWEST TO THE MID-ATLANTIC THROUGH TUESDAY. A FRONTAL SYSTEM MAY  
GRADUALLY APPROACH FROM THE WEST THE SECOND HALF OF THE WEEK AS THE  
HIGH MOVES AWAY. NO MARINE HAZARDS ARE EXPECTED AT THIS TIME.  
 
 
 
ANZ535-110800-  
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-  
434 PM EDT SUN AUG 10 2025  
   
REST OF THIS AFTERNOON  
SE WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT  
SE WINDS AROUND 5 KT. WAVES 1 FT.    
MON  
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. PATCHY FOG. VSBY  
1 TO 3 NM.    
MON NIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT.    
TUE  
S WINDS AROUND 5 KT. WAVES 1 FT.    
TUE NIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT.    
WED  
SW WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT.    
THU  
NW WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ536-110800-  
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-  
434 PM EDT SUN AUG 10 2025  
   
REST OF THIS AFTERNOON  
SE WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT  
SE WINDS AROUND 5 KT. WAVES 1 FT.    
MON  
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. PATCHY FOG. VSBY  
1 TO 3 NM.    
MON NIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT.    
TUE  
S WINDS AROUND 5 KT. WAVES 1 FT.    
TUE NIGHT  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
WED  
SW WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT.    
THU  
N WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ537-110800-  
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-  
434 PM EDT SUN AUG 10 2025  
   
REST OF THIS AFTERNOON  
SE WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT  
SE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON  
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
MON NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
TUE NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS  
THROUGH THE NIGHT.    
THU  
N WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ530-110800-  
CHESAPEAKE BAY NORTH OF POOLES ISLAND-  
434 PM EDT SUN AUG 10 2025  
   
REST OF THIS AFTERNOON  
S WINDS 5 KT. WAVES LESS THAN 1 FT.   
TONIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT.    
MON  
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON NIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT.    
TUE  
S WINDS AROUND 5 KT. WAVES 1 FT.    
TUE NIGHT  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
WED  
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
THU  
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ531-110800-  
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-  
434 PM EDT SUN AUG 10 2025  
   
REST OF THIS AFTERNOON  
SE WINDS 5 KT. WAVES FLAT.    
TONIGHT  
S WINDS AROUND 5 KT. WAVES FLAT.    
MON  
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
TUE NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
THU  
N WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ538-110800-  
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-  
434 PM EDT SUN AUG 10 2025  
   
REST OF THIS AFTERNOON  
SE WINDS 5 KT. WAVES FLAT.    
TONIGHT  
S WINDS AROUND 5 KT. WAVES FLAT.    
MON  
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON NIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
TUE  
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
TUE NIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
WED  
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS.    
THU  
N WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ539-110800-  
CHESTER RIVER TO QUEENSTOWN MD-  
434 PM EDT SUN AUG 10 2025  
   
REST OF THIS AFTERNOON  
S WINDS 5 KT. WAVES FLAT.    
TONIGHT  
S WINDS AROUND 5 KT. WAVES FLAT.    
MON  
S WINDS AROUND 5 KT. WAVES FLAT.    
MON NIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT.    
TUE  
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
TUE NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
THU  
NW WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND TSTMS  
THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ532-110800-  
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-  
434 PM EDT SUN AUG 10 2025  
   
REST OF THIS AFTERNOON  
S WINDS 5 KT. WAVES FLAT.    
TONIGHT  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON  
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS  
THROUGH THE NIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.    
THU  
N WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ540-110800-  
EASTERN BAY-  
434 PM EDT SUN AUG 10 2025  
   
REST OF THIS AFTERNOON  
SW WINDS 5 KT. WAVES FLAT.    
TONIGHT  
S WINDS AROUND 5 KT. WAVES FLAT.    
MON  
S WINDS AROUND 5 KT. WAVES FLAT.    
MON NIGHT  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
TUE  
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
TUE NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.    
THU  
NW WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND TSTMS  
THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ533-110800-  
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-  
434 PM EDT SUN AUG 10 2025  
   
REST OF THIS AFTERNOON  
S WINDS 5 KT. WAVES FLAT.    
TONIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
MON  
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
TUE NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS  
THROUGH THE NIGHT.    
THU  
N WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ541-110800-  
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-  
434 PM EDT SUN AUG 10 2025  
   
REST OF THIS AFTERNOON  
S WINDS 5 KT. WAVES FLAT.    
TONIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT.    
MON  
S WINDS AROUND 5 KT. WAVES FLAT.    
MON NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
TUE NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS  
IN THE AFTERNOON. A CHANCE OF SHOWERS THROUGH THE NIGHT.    
THU  
NW WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND TSTMS  
THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ542-110800-  
PATUXENT RIVER TO BROOMES ISLAND MD-  
434 PM EDT SUN AUG 10 2025  
   
REST OF THIS AFTERNOON  
SE WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT.    
MON  
SE WINDS AROUND 5 KT. WAVES 1 FT.    
MON NIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT.    
TUE  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
S WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT.    
THU  
N WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ534-110800-  
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-  
434 PM EDT SUN AUG 10 2025  
   
REST OF THIS AFTERNOON  
SE WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT  
SE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON  
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
MON NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.    
WED  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
THU  
N WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ543-110800-  
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-  
434 PM EDT SUN AUG 10 2025  
   
REST OF THIS AFTERNOON  
S WINDS 5 KT. WAVES FLAT.    
TONIGHT  
SE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON  
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE  
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
TUE NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
THU  
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
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