174  
FZUS51 KLWX 101157  
CWFLWX  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
757 AM EDT FRI JUL 10 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.  
 
ANZ500-102000-  
757 AM EDT FRI JUL 10 2026  
 
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...  
 
A FRONTAL ZONE WILL MEANDER ABOUT THE MID-ATLANTIC TODAY. ANOTHER  
COLD FRONT WILL PUSH SOUTH ACROSS THE WATERS THIS WEEKEND BEFORE  
SETTLING SOUTH OVER THE CAROLINAS BY EARLY NEXT WEEK. SPECIAL MARINE  
WARNINGS MAY BE NEEDED FOR STRONG TO SEVERE THUNDERSTORMS THROUGH  
SATURDAY, BUT ESPECIALLY THIS AFTERNOON AND EVENING.  
 

 
 
ANZ535-102000-  
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-  
757 AM EDT FRI JUL 10 2026  
   
TODAY
 
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THIS AFTERNOON.    
TONIGHT
 
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF  
SHOWERS AND TSTMS.    
SAT
 
N WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE  
OF TSTMS.    
SAT NIGHT
 
NE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
SUN
 
E WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN NIGHT
 
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON
 
SE WINDS AROUND 5 KT. WAVES 1 FT.    
TUE
 
SW WINDS AROUND 5 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ536-102000-  
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-  
757 AM EDT FRI JUL 10 2026  
   
TODAY
 
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THIS AFTERNOON.    
TONIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF  
SHOWERS AND TSTMS.    
SAT
 
NW WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
SAT NIGHT
 
NE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF  
SHOWERS AND TSTMS.    
SUN
 
NE WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN NIGHT
 
E WINDS 5 TO 10 KT. WAVES 1 FT.    
MON
 
SE WINDS AROUND 5 KT. WAVES 1 FT.    
TUE
 
SW WINDS AROUND 5 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ537-102000-  
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-  
757 AM EDT FRI JUL 10 2026  
   
TODAY...W WINDS 5 TO 10 KT
 
BECOMING S LATE. WAVES 1 FT OR LESS. A  
CHANCE OF SHOWERS AND TSTMS THIS AFTERNOON.    
TONIGHT
 
SW WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND TSTMS.   
SAT
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE  
OF TSTMS.    
SAT NIGHT
 
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
SUN
 
E WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN NIGHT
 
E WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.    
MON...SE WINDS 5 TO 10 KT
 
BECOMING S AFTER MIDNIGHT. WAVES 1 FT.    
TUE
 
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ530-102000-  
CHESAPEAKE BAY NORTH OF POOLES ISLAND-  
757 AM EDT FRI JUL 10 2026  
   
TODAY
 
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THIS AFTERNOON.    
TONIGHT
 
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
SAT
 
N WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE  
OF TSTMS.    
SAT NIGHT
 
NE WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY  
WITH A CHANCE OF TSTMS.    
SUN
 
E WINDS AROUND 5 KT. WAVES 1 FT.    
SUN NIGHT
 
SE WINDS AROUND 5 KT. WAVES 1 FT.    
MON...SE WINDS 5 TO 10 KT
 
BECOMING SW AFTER MIDNIGHT. WAVES 1 FT  
OR LESS.    
TUE
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ531-102000-  
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-  
757 AM EDT FRI JUL 10 2026  
   
TODAY
 
W WINDS 5 KT. WAVES LESS THAN 1 FT. A SLIGHT CHANCE OF  
SHOWERS AND TSTMS THIS AFTERNOON.    
TONIGHT
 
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF  
SHOWERS.    
SAT
 
N WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
SAT NIGHT
 
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
SUN
 
E WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN NIGHT
 
SE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON...SE WINDS 5 TO 10 KT
 
BECOMING SW AFTER MIDNIGHT. WAVES 1 FT  
OR LESS.    
TUE
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ538-102000-  
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-  
757 AM EDT FRI JUL 10 2026  
   
TODAY
 
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THIS AFTERNOON.    
TONIGHT
 
W WINDS AROUND 5 KT. WAVES FLAT.    
SAT
 
N WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
SAT NIGHT
 
NE WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY  
WITH A CHANCE OF TSTMS.    
SUN
 
E WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN NIGHT
 
SE WINDS AROUND 5 KT. WAVES 1 FT.    
MON
 
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
TUE
 
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ539-102000-  
CHESTER RIVER TO QUEENSTOWN MD-  
757 AM EDT FRI JUL 10 2026  
   
TODAY
 
W WINDS 5 KT. WAVES LESS THAN 1 FT. A SLIGHT CHANCE OF  
SHOWERS AND TSTMS THIS AFTERNOON.    
TONIGHT
 
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF  
SHOWERS AND TSTMS.    
SAT
 
N WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE  
OF TSTMS.    
SAT NIGHT
 
NE WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY  
WITH A CHANCE OF TSTMS.    
SUN
 
E WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN NIGHT
 
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON...SE WINDS 5 TO 10 KT
 
BECOMING SW AFTER MIDNIGHT. WAVES 1 FT  
OR LESS.    
TUE
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ532-102000-  
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-  
757 AM EDT FRI JUL 10 2026  
   
TODAY
 
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THIS AFTERNOON.    
TONIGHT
 
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF  
SHOWERS AND TSTMS.    
SAT
 
N WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
SAT NIGHT
 
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
SUN
 
E WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN NIGHT
 
SE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON...SE WINDS 5 TO 10 KT
 
BECOMING SW AFTER MIDNIGHT. WAVES 1 FT  
OR LESS.    
TUE
 
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ540-102000-  
EASTERN BAY-  
757 AM EDT FRI JUL 10 2026  
   
TODAY
 
W WINDS 5 TO 10 KT. WAVES 1 FT. A SLIGHT CHANCE OF SHOWERS  
AND TSTMS THIS AFTERNOON.    
TONIGHT
 
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF  
SHOWERS AND TSTMS.    
SAT
 
N WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
SAT NIGHT
 
NE WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY  
WITH A CHANCE OF TSTMS.    
SUN
 
E WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN NIGHT
 
SE WINDS AROUND 5 KT. WAVES 1 FT.    
MON...SE WINDS 5 TO 10 KT
 
BECOMING SW AFTER MIDNIGHT. WAVES 1 FT  
OR LESS.    
TUE
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ533-102000-  
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-  
757 AM EDT FRI JUL 10 2026  
   
TODAY...W WINDS 5 TO 10 KT
 
BECOMING SW THIS AFTERNOON. WAVES  
1 FT. A CHANCE OF SHOWERS AND TSTMS THIS AFTERNOON.    
TONIGHT
 
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
SAT
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
SAT NIGHT
 
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
SUN
 
E WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN NIGHT
 
E WINDS 5 TO 10 KT. WAVES 1 FT.    
MON...SE WINDS 5 TO 10 KT
 
BECOMING S AFTER MIDNIGHT. WAVES 1 FT  
OR LESS.    
TUE
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ541-102000-  
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-  
757 AM EDT FRI JUL 10 2026  
   
TODAY
 
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
TONIGHT
 
W WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND  
TSTMS.    
SAT
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE  
OF TSTMS.    
SAT NIGHT
 
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
SUN
 
E WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN NIGHT
 
E WINDS 5 TO 10 KT. WAVES 1 FT.    
MON...SE WINDS 5 TO 10 KT
 
BECOMING S AFTER MIDNIGHT. WAVES 1 FT  
OR LESS.    
TUE
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ542-102000-  
PATUXENT RIVER TO BROOMES ISLAND MD-  
757 AM EDT FRI JUL 10 2026  
   
TODAY
 
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
SAT
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE  
OF TSTMS.    
SAT NIGHT
 
NE WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY  
WITH A CHANCE OF TSTMS.    
SUN
 
E WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN NIGHT
 
E WINDS 5 TO 10 KT. WAVES 1 FT.    
MON...SE WINDS 5 TO 10 KT
 
BECOMING S AFTER MIDNIGHT. WAVES 1 FT.    
TUE
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ534-102000-  
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-  
757 AM EDT FRI JUL 10 2026  
   
TODAY...W WINDS 5 TO 10 KT
 
BECOMING S LATE. WAVES 1 FT.   
TONIGHT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
SAT
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
SAT NIGHT
 
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
SUN
 
E WINDS 10 KT. WAVES 1 FT.    
SUN NIGHT
 
E WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.    
MON
 
SE WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE
 
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ543-102000-  
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-  
757 AM EDT FRI JUL 10 2026  
   
TODAY...W WINDS 5 TO 10 KT
 
BECOMING SW LATE. WAVES 1 FT.    
TONIGHT
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
SAT
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE  
OF TSTMS.    
SAT NIGHT
 
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
SUN
 
NE WINDS 10 KT. WAVES 1 FT.    
SUN NIGHT
 
E WINDS 5 TO 10 KT. WAVES 1 FT.    
MON
 
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
TUE
 
SW WINDS 10 TO 15 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab VA Page
The Nexlab MD Page
The Nexlab WV Page Main Text Page