391  
FZUS51 KLWX 070048  
CWFLWX  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
848 PM EDT SUN SEP 6 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.  
 
ANZ500-071400-  
848 PM EDT SUN SEP 6 2026  
 
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...  
 
AS HIGH PRESSURE APPROACHES FROM THE GREAT LAKES, WINDS BECOME  
NORTHEASTERLY ON MONDAY BEFORE BECOMING SOUTHERLY TUESDAY AS THIS  
HIGH SLOWLY EXITS TO THE EAST. HOWEVER, WIND GUSTS REMAIN BELOW  
SMALL CRAFT ADVISORY LEVELS. AHEAD OF A COLD FRONT, WINDS INCREASE  
ON WEDNESDAY INTO THURSDAY WHICH MAY NECESSITATE SOME SMALL CRAFT  
ADVISORIES.  
 

 
 
ANZ535-071400-  
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-  
848 PM EDT SUN SEP 6 2026  
   
TONIGHT
 
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON
 
NE WINDS AROUND 5 KT. WAVES 1 FT.    
MON NIGHT
 
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
TUE
 
SW WINDS AROUND 5 KT. WAVES 1 FT.    
TUE NIGHT
 
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
WED
 
SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
WED NIGHT
 
SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
THU
 
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS  
THROUGH THE NIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.    
FRI
 
NE WINDS AROUND 5 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ536-071400-  
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-  
848 PM EDT SUN SEP 6 2026  
   
TONIGHT
 
E WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON
 
NE WINDS AROUND 5 KT. WAVES 1 FT.    
MON NIGHT
 
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
TUE
 
SW WINDS AROUND 5 KT. WAVES 1 FT.    
TUE NIGHT
 
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
WED
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
WED NIGHT
 
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
THU...SW WINDS 10 TO 15 KT
 
BECOMING NW 5 TO 10 KT AFTER MIDNIGHT.  
WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS THROUGH THE NIGHT. A  
CHANCE OF SHOWERS AFTER MIDNIGHT.   
FRI...N WINDS 5 TO 10 KT
 
BECOMING SE. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ537-071400-  
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-  
848 PM EDT SUN SEP 6 2026  
   
TONIGHT
 
E WINDS 5 TO 10 KT. WAVES 1 FT.    
MON
 
NE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON NIGHT
 
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
TUE
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
TUE NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED
 
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.  
WAVES 1 FT.    
WED NIGHT
 
S WINDS 15 TO 20 KT. WAVES 2 FT.    
THU...SW WINDS 10 TO 15 KT
 
BECOMING W 5 TO 10 KT AFTER MIDNIGHT.  
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.    
FRI...N WINDS 5 TO 10 KT
 
BECOMING E. WAVES 1 FT.  
 

 
 
ANZ530-071400-  
CHESAPEAKE BAY NORTH OF POOLES ISLAND-  
848 PM EDT SUN SEP 6 2026  
   
TONIGHT
 
NE WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON
 
N WINDS AROUND 5 KT. WAVES FLAT.    
MON NIGHT
 
N WINDS AROUND 5 KT. WAVES FLAT.    
TUE
 
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
TUE NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED
 
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
WED NIGHT
 
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.    
THU...W WINDS 10 TO 15 KT
 
BECOMING NW 5 TO 10 KT AFTER MIDNIGHT.  
WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS THROUGH THE NIGHT. A  
CHANCE OF SHOWERS AFTER MIDNIGHT.   
FRI...N WINDS 5 TO 10 KT
 
BECOMING E AFTER MIDNIGHT. WAVES 1 FT OR  
LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ531-071400-  
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-  
848 PM EDT SUN SEP 6 2026  
   
TONIGHT
 
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
MON
 
NE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON NIGHT
 
N WINDS AROUND 5 KT. WAVES FLAT.    
TUE...NW WINDS AROUND 5 KT
 
BECOMING S IN THE AFTERNOON. WAVES  
1 FT OR LESS.    
TUE NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED
 
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.    
WED NIGHT
 
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.    
THU...SW WINDS 10 TO 15 KT
 
BECOMING NW AFTER MIDNIGHT. WAVES  
2 FT. A CHANCE OF SHOWERS AND TSTMS THROUGH THE NIGHT. A CHANCE OF  
SHOWERS AFTER MIDNIGHT.    
FRI...N WINDS 10 TO 15 KT...BECOMING E 5 KT. WAVES 1 TO 2 FT
 
 
SUBSIDING TO FLAT AFTER MIDNIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ538-071400-  
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-  
848 PM EDT SUN SEP 6 2026  
   
TONIGHT
 
NE WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON
 
NE WINDS 5 KT. WAVES FLAT.    
MON NIGHT
 
NW WINDS AROUND 5 KT. WAVES FLAT.    
TUE...NW WINDS AROUND 5 KT
 
BECOMING S IN THE AFTERNOON. WAVES  
1 FT OR LESS.    
TUE NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED
 
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
WED NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
THU
 
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS  
THROUGH THE NIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.    
FRI...N WINDS 5 TO 10 KT
 
BECOMING E AFTER MIDNIGHT. WAVES 1 FT OR  
LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ539-071400-  
CHESTER RIVER TO QUEENSTOWN MD-  
848 PM EDT SUN SEP 6 2026  
   
TONIGHT
 
E WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON
 
N WINDS AROUND 5 KT. WAVES 1 FT.    
MON NIGHT
 
E WINDS AROUND 5 KT. WAVES FLAT.    
TUE
 
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
TUE NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED
 
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.    
WED NIGHT
 
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.    
THU...SW WINDS 10 TO 15 KT
 
BECOMING NW 5 TO 10 KT AFTER MIDNIGHT.  
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND TSTMS THROUGH THE NIGHT. A  
CHANCE OF SHOWERS AFTER MIDNIGHT.   
FRI...N WINDS 5 TO 10 KT
 
BECOMING E AFTER MIDNIGHT. WAVES 1 TO  
2 FT...SUBSIDING TO FLAT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ532-071400-  
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-  
848 PM EDT SUN SEP 6 2026  
   
TONIGHT
 
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
MON
 
NE WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON NIGHT
 
S WINDS AROUND 5 KT. WAVES FLAT.    
TUE
 
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
TUE NIGHT
 
S WINDS 10 KT. WAVES 1 FT.    
WED
 
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.    
WED NIGHT
 
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.    
THU...SW WINDS 10 TO 15 KT
 
BECOMING NW AFTER MIDNIGHT. WAVES 1 TO  
2 FT. A CHANCE OF SHOWERS AND TSTMS THROUGH THE NIGHT. A CHANCE OF  
SHOWERS AFTER MIDNIGHT.   
FRI...N WINDS 10 TO 15 KT
 
BECOMING E 5 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ540-071400-  
EASTERN BAY-  
848 PM EDT SUN SEP 6 2026  
   
TONIGHT
 
E WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON
 
N WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON NIGHT
 
SE WINDS AROUND 5 KT. WAVES FLAT.    
TUE
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
TUE NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED
 
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
WED NIGHT
 
S WINDS 15 TO 20 KT. WAVES 2 FT.    
THU...SW WINDS 10 TO 15 KT
 
BECOMING NW 5 TO 10 KT AFTER MIDNIGHT.  
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND TSTMS THROUGH THE NIGHT. A  
CHANCE OF SHOWERS AFTER MIDNIGHT.   
FRI...N WINDS 5 TO 10 KT
 
BECOMING E AFTER MIDNIGHT. WAVES 1 FT OR  
LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ533-071400-  
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-  
848 PM EDT SUN SEP 6 2026  
   
TONIGHT
 
E WINDS 5 TO 10 KT. WAVES 1 FT.    
MON
 
NE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON NIGHT
 
S WINDS AROUND 5 KT. WAVES FLAT.    
TUE
 
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
TUE NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED
 
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.    
WED NIGHT
 
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.    
THU...SW WINDS 10 TO 15 KT
 
BECOMING NW AFTER MIDNIGHT. WAVES 1 TO  
2 FT. A CHANCE OF SHOWERS.    
FRI...N WINDS 10 TO 15 KT
 
BECOMING E 5 KT. WAVES 1 TO 2 FT.  
 

 
 
ANZ541-071400-  
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-  
848 PM EDT SUN SEP 6 2026  
   
TONIGHT
 
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
MON
 
N WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON NIGHT
 
SE WINDS AROUND 5 KT. WAVES FLAT.    
TUE
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
TUE NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED
 
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.    
WED NIGHT
 
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.    
THU...SW WINDS 10 TO 15 KT
 
BECOMING NW AFTER MIDNIGHT. WAVES 1 TO  
2 FT. A CHANCE OF SHOWERS.    
FRI...N WINDS 10 TO 15 KT
 
BECOMING E AROUND 5 KT. WAVES 1 TO  
2 FT...SUBSIDING TO 1 FT OR LESS.  
 

 
 
ANZ542-071400-  
PATUXENT RIVER TO BROOMES ISLAND MD-  
848 PM EDT SUN SEP 6 2026  
   
TONIGHT
 
E WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON
 
NE 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
 
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
WED
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
WED NIGHT
 
S WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
THU
 
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
FRI...N WINDS 5 TO 10 KT
 
BECOMING E AFTER MIDNIGHT. WAVES 1 FT.  
 

 
 
ANZ534-071400-  
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-  
848 PM EDT SUN SEP 6 2026  
   
TONIGHT
 
E WINDS 5 TO 10 KT. WAVES 1 FT.    
MON
 
NE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON NIGHT
 
SE WINDS 5 KT. WAVES LESS THAN 1 FT.    
TUE
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
TUE NIGHT
 
S WINDS 10 TO 15 KT. WAVES 2 FT.    
WED...SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT
 
 
BUILDING TO 3 FT IN THE AFTERNOON.    
WED NIGHT
 
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.    
THU...SW WINDS 15 TO 20 KT
 
BECOMING W 10 TO 15 KT AFTER MIDNIGHT.  
WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.    
FRI...N WINDS 10 TO 15 KT
 
BECOMING E 5 TO 10 KT. WAVES 1 TO 2 FT.  
 
 

 
 
ANZ543-071400-  
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-  
848 PM EDT SUN SEP 6 2026  
   
TONIGHT
 
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
MON
 
NE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON NIGHT
 
SE WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE
 
W WINDS AROUND 5 KT. WAVES FLAT.    
TUE NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED
 
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.    
WED NIGHT
 
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.    
THU...SW WINDS 15 TO 20 KT
 
BECOMING W 10 TO 15 KT AFTER MIDNIGHT.  
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.    
FRI...N WINDS 10 TO 15 KT
 
BECOMING E 5 TO 10 KT. WAVES 1 FT.  
 

 
 
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