307  
FZUS51 KLWX 101436  
CWFLWX  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1036 AM EDT THU JUL 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.  
 
ANZ500-102000-  
1036 AM EDT THU JUL 10 2025  
 
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...  
 
A WEAK FRONT WILL REMAIN STALLED NEAR THE AREA THROUGH FRIDAY. A  
SECOND FRONT MAY SETTLE SOUTHWARD INTO THE AREA OVER THE WEEKEND.  
 

 
 
ANZ535-102000-  
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-  
1036 AM EDT THU JUL 10 2025  
   
REST OF TODAY
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT. ISOLATED  
SHOWERS AND TSTMS LATE THIS MORNING, THEN SCATTERED SHOWERS AND  
TSTMS THIS AFTERNOON.    
TONIGHT
 
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SCATTERED  
SHOWERS AND TSTMS.    
FRI
 
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS. PATCHY FOG. VSBY 1 TO 3 NM.    
FRI NIGHT
 
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT
 
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS.    
SAT NIGHT
 
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SUN
 
S WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
MON
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SHOWERS LIKELY  
THROUGH THE NIGHT. A CHANCE OF TSTMS. A CHANCE OF SHOWERS AFTER  
MIDNIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ536-102000-  
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-  
1036 AM EDT THU JUL 10 2025  
   
REST OF TODAY
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED  
SHOWERS AND TSTMS. VSBY 1 NM OR LESS THIS AFTERNOON.    
TONIGHT
 
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SCATTERED  
SHOWERS AND TSTMS.    
FRI
 
LIGHT WINDS. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS AND  
TSTMS.    
FRI NIGHT
 
LIGHT WINDS. WAVES 1 FT OR LESS.    
SAT
 
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS.    
SAT NIGHT
 
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SUN
 
SE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
MON
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SHOWERS LIKELY  
THROUGH THE NIGHT. A CHANCE OF TSTMS. A CHANCE OF SHOWERS AFTER  
MIDNIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ537-102000-  
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-  
1036 AM EDT THU JUL 10 2025  
   
REST OF TODAY
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED  
SHOWERS AND TSTMS LATE THIS MORNING, THEN NUMEROUS SHOWERS AND TSTMS  
THIS AFTERNOON WITH VSBY 1 NM OR LESS.    
TONIGHT
 
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SCATTERED  
SHOWERS AND TSTMS. VSBY 1 NM OR LESS.    
FRI
 
SW WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS.    
FRI NIGHT
 
S WINDS AROUND 5 KT. WAVES FLAT.    
SAT
 
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS.    
SAT NIGHT
 
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SUN
 
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS.    
MON
 
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS.  
A CHANCE OF TSTMS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ530-102000-  
CHESAPEAKE BAY NORTH OF POOLES ISLAND-  
1036 AM EDT THU JUL 10 2025  
   
REST OF TODAY
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED  
TSTMS. SCATTERED SHOWERS LATE THIS MORNING, THEN NUMEROUS SHOWERS  
THIS AFTERNOON. VSBY 1 NM OR LESS.    
TONIGHT
 
SW WINDS AROUND 5 KT. WAVES FLAT. NUMEROUS SHOWERS AND  
SCATTERED TSTMS. PATCHY FOG. VSBY 1 TO 3 NM.    
FRI
 
E WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS. PATCHY FOG. VSBY 1 TO 3 NM.    
FRI NIGHT
 
SE WINDS AROUND 5 KT. WAVES FLAT.    
SAT
 
E WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS.    
SAT NIGHT
 
SE WINDS AROUND 5 KT. WAVES FLAT.    
SUN
 
SE WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS.    
MON
 
SW WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS IN THE MORNING, THEN SHOWERS AND TSTMS LIKELY THROUGH THE  
NIGHT. A CHANCE OF SHOWERS AND TSTMS AFTER MIDNIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ531-102000-  
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-  
1036 AM EDT THU JUL 10 2025  
   
REST OF TODAY
 
SW WINDS 5 KT. WAVES FLAT. SCATTERED SHOWERS AND  
TSTMS. VSBY 1 NM OR LESS THIS AFTERNOON.    
TONIGHT
 
SW WINDS AROUND 5 KT. WAVES FLAT. NUMEROUS SHOWERS AND  
SCATTERED TSTMS. VSBY 1 NM OR LESS.    
FRI
 
E WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS.    
FRI NIGHT
 
SE WINDS AROUND 5 KT. WAVES FLAT.    
SAT
 
E WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS.    
SAT NIGHT
 
SE WINDS AROUND 5 KT. WAVES FLAT.    
SUN
 
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS.    
MON
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS IN THE MORNING, THEN SHOWERS AND TSTMS LIKELY THROUGH THE  
NIGHT. A CHANCE OF SHOWERS AND TSTMS AFTER MIDNIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ538-102000-  
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-  
1036 AM EDT THU JUL 10 2025  
   
REST OF TODAY
 
SW WINDS 5 KT. WAVES FLAT. ISOLATED SHOWERS AND  
TSTMS LATE THIS MORNING, THEN SCATTERED SHOWERS AND TSTMS THIS  
AFTERNOON WITH VSBY 1 NM OR LESS.    
TONIGHT
 
SW WINDS AROUND 5 KT. WAVES FLAT. SCATTERED SHOWERS AND  
TSTMS. PATCHY FOG. VSBY 1 NM OR LESS.    
FRI
 
E WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS. PATCHY FOG. VSBY 1 TO 3 NM.    
FRI NIGHT
 
SE WINDS AROUND 5 KT. WAVES FLAT.    
SAT
 
E WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS.    
SAT NIGHT
 
SE WINDS AROUND 5 KT. WAVES FLAT.    
SUN
 
SE WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS.    
MON
 
SW WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS IN THE MORNING, THEN SHOWERS AND TSTMS LIKELY THROUGH THE  
NIGHT. A CHANCE OF SHOWERS AND TSTMS AFTER MIDNIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ539-102000-  
CHESTER RIVER TO QUEENSTOWN MD-  
1036 AM EDT THU JUL 10 2025  
   
REST OF TODAY
 
SW WINDS 5 KT. WAVES FLAT. SCATTERED SHOWERS AND  
TSTMS LATE THIS MORNING, THEN NUMEROUS SHOWERS AND SCATTERED TSTMS  
THIS AFTERNOON WITH VSBY 1 NM OR LESS.    
TONIGHT
 
SW WINDS AROUND 5 KT. WAVES FLAT. NUMEROUS SHOWERS AND  
SCATTERED TSTMS. VSBY 1 NM OR LESS.    
FRI
 
LIGHT WINDS. WAVES FLAT. A CHANCE OF SHOWERS AND TSTMS.    
FRI NIGHT
 
SE WINDS AROUND 5 KT. WAVES FLAT.    
SAT
 
SE WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS.    
SAT NIGHT
 
SE WINDS AROUND 5 KT. WAVES FLAT.    
SUN
 
SE WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND TSTMS.    
MON
 
SW WINDS 5 KT. WAVES FLAT. A CHANCE OF TSTMS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ532-102000-  
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-  
1036 AM EDT THU JUL 10 2025  
   
REST OF TODAY
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED  
SHOWERS AND TSTMS LATE THIS MORNING, THEN NUMEROUS SHOWERS AND  
SCATTERED TSTMS THIS AFTERNOON WITH VSBY 1 NM OR LESS.    
TONIGHT
 
SW WINDS AROUND 5 KT. WAVES FLAT. SCATTERED SHOWERS AND  
TSTMS. VSBY 1 NM OR LESS.    
FRI
 
E WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS.    
FRI NIGHT
 
S WINDS AROUND 5 KT. WAVES FLAT.    
SAT
 
SE WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS.    
SAT NIGHT
 
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SUN
 
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS.    
MON
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ540-102000-  
EASTERN BAY-  
1036 AM EDT THU JUL 10 2025  
   
REST OF TODAY
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED  
SHOWERS AND TSTMS LATE THIS MORNING, THEN NUMEROUS SHOWERS AND  
SCATTERED TSTMS THIS AFTERNOON WITH VSBY 1 NM OR LESS.    
TONIGHT
 
SW WINDS AROUND 5 KT. WAVES FLAT. SCATTERED SHOWERS AND  
TSTMS.    
FRI
 
E WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS.    
FRI NIGHT
 
SE WINDS AROUND 5 KT. WAVES FLAT.    
SAT
 
SE WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS.    
SAT NIGHT
 
SE WINDS AROUND 5 KT. WAVES FLAT.    
SUN
 
SE WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND TSTMS.    
MON
 
SW WINDS 5 KT. WAVES FLAT. SHOWERS LIKELY WITH A CHANCE OF  
TSTMS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ533-102000-  
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-  
1036 AM EDT THU JUL 10 2025  
   
REST OF TODAY
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED  
SHOWERS AND TSTMS LATE THIS MORNING, THEN NUMEROUS SHOWERS AND TSTMS  
THIS AFTERNOON WITH VSBY 1 NM OR LESS.    
TONIGHT
 
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SCATTERED  
SHOWERS AND TSTMS. VSBY 1 NM OR LESS.    
FRI
 
E WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS.    
FRI NIGHT
 
S WINDS 5 KT. WAVES FLAT.    
SAT
 
E WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND TSTMS.    
SAT NIGHT
 
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SUN
 
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS.    
MON
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS. A  
CHANCE OF TSTMS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ541-102000-  
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-  
1036 AM EDT THU JUL 10 2025  
   
REST OF TODAY
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED  
SHOWERS AND TSTMS LATE THIS MORNING, THEN NUMEROUS SHOWERS AND TSTMS  
THIS AFTERNOON WITH VSBY 1 NM OR LESS.    
TONIGHT
 
S WINDS AROUND 5 KT. WAVES FLAT. SCATTERED SHOWERS AND  
TSTMS. VSBY 1 NM OR LESS.    
FRI
 
SE WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS.    
FRI NIGHT
 
SE WINDS AROUND 5 KT. WAVES FLAT.    
SAT
 
SE WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS.    
SAT NIGHT
 
SE WINDS AROUND 5 KT. WAVES FLAT.    
SUN
 
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS.    
MON
 
SW WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS. A  
CHANCE OF TSTMS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ542-102000-  
PATUXENT RIVER TO BROOMES ISLAND MD-  
1036 AM EDT THU JUL 10 2025  
   
REST OF TODAY
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED  
SHOWERS AND TSTMS LATE THIS MORNING, THEN NUMEROUS SHOWERS AND TSTMS  
THIS AFTERNOON.    
TONIGHT
 
S WINDS AROUND 5 KT. WAVES 1 FT. SCATTERED SHOWERS AND  
TSTMS.    
FRI
 
NE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
FRI NIGHT
 
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT
 
E WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
SAT NIGHT
 
SE WINDS AROUND 5 KT. WAVES 1 FT.    
SUN
 
SE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
MON
 
S WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS. A  
CHANCE OF TSTMS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ534-102000-  
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-  
1036 AM EDT THU JUL 10 2025  
   
REST OF TODAY...SW WINDS 10 KT
 
BECOMING S LATE. WAVES 1 FT.  
SCATTERED SHOWERS AND TSTMS LATE THIS MORNING, THEN NUMEROUS SHOWERS  
AND SCATTERED TSTMS THIS AFTERNOON WITH VSBY 1 NM OR LESS.    
TONIGHT
 
S WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED SHOWERS AND  
TSTMS. VSBY 1 NM OR LESS.    
FRI
 
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
FRI NIGHT
 
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
SAT
 
E WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
SAT NIGHT
 
SE WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN
 
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS.    
MON
 
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS. A  
CHANCE OF TSTMS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ543-102000-  
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-  
1036 AM EDT THU JUL 10 2025  
   
REST OF TODAY
 
SW WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS  
AND TSTMS LATE THIS MORNING, THEN NUMEROUS SHOWERS AND TSTMS THIS  
AFTERNOON WITH VSBY 1 NM OR LESS.    
TONIGHT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT. NUMEROUS SHOWERS AND  
TSTMS. VSBY 1 NM OR LESS.    
FRI
 
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS. VSBY 1 TO 3 NM.    
FRI NIGHT
 
SE WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS.    
SAT
 
E WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND TSTMS.    
SAT NIGHT
 
SE WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN
 
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AFTER MIDNIGHT.    
MON
 
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS. A  
CHANCE OF TSTMS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
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