144  
FZUS51 KLWX 212057  
CWFLWX  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
457 PM EDT SUN JUN 21 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.  
 
ANZ500-220800-  
457 PM EDT SUN JUN 21 2026  
 
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...  
 
HIGH PRESSURE WILL REMAIN NEARBY TONIGHT BEFORE A FRONTAL SYSTEM  
APPROACHES THE AREA MONDAY. HIGH PRESSURE WILL RETURN WEDNESDAY.  
SMALL CRAFT ADVISORIES WILL LIKELY BE NEEDED FOR PORTIONS OF THE  
WATERS MONDAY NIGHT INTO TUESDAY. SPECIAL MARINE WARNINGS MAY BE  
NEEDED AS THUNDERSTORMS TRACK OVER THE WATERS MONDAY AFTERNOON AND  
EVENING.  
 

 
 
ANZ535-220800-  
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-  
457 PM EDT SUN JUN 21 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT MONDAY AFTERNOON
 
 
   
REST OF THIS AFTERNOON
 
W WINDS 10 KT. WAVES 1 FT.    
TONIGHT
 
NE WINDS AROUND 5 KT. WAVES 1 FT.    
MON...S WINDS 10 TO 15 KT WITH GUSTS TO 30 KT
 
BECOMING SW WITH  
GUSTS TO 30 KT LATE. WAVES 1 TO 2 FT. SHOWERS LIKELY WITH A CHANCE  
OF TSTMS.    
MON NIGHT
 
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.  
WAVES 1 FT. SHOWERS WITH A CHANCE OF TSTMS.    
TUE
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
TUE NIGHT
 
NW WINDS 5 TO 10 KT. WAVES 1 FT.    
WED
 
N WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
THU
 
S 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.  
 

 
 
ANZ536-220800-  
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-  
457 PM EDT SUN JUN 21 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT MONDAY AFTERNOON
 
 
   
REST OF THIS AFTERNOON
 
NW WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT
 
E WINDS AROUND 5 KT. WAVES 1 FT.    
MON...S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
 
BECOMING SW WITH  
GUSTS TO 25 KT LATE. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE OF  
TSTMS.    
MON NIGHT
 
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.  
WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.    
TUE
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
TUE NIGHT
 
NW WINDS 5 TO 10 KT. WAVES 1 FT.    
WED
 
NE WINDS AROUND 5 KT. WAVES 1 FT.    
THU
 
S 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.  
 

 
 
ANZ537-220800-  
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-  
457 PM EDT SUN JUN 21 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT MONDAY AFTERNOON
 
 
   
REST OF THIS AFTERNOON
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT
 
SE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON...S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 FT
 
 
BUILDING TO 3 FT IN THE AFTERNOON.    
MON NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
 
BECOMING SW  
5 TO 10 KT AFTER MIDNIGHT. WAVES 3 FT... SUBSIDING TO 1 FT AFTER  
MIDNIGHT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.    
TUE
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE  
OF TSTMS.    
TUE NIGHT
 
N WINDS 5 TO 10 KT. WAVES 1 FT.    
WED...N WINDS 5 TO 10 KT
 
BECOMING SE. WAVES 1 FT.    
THU...S WINDS AROUND 5 KT...INCREASING TO 10 TO 15 KT. WAVES FLAT
 
 
BUILDING TO 2 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ530-220800-  
CHESAPEAKE BAY NORTH OF POOLES ISLAND-  
457 PM EDT SUN JUN 21 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT MONDAY AFTERNOON
 
 
   
REST OF THIS AFTERNOON
 
W WINDS 10 KT. WAVES 1 FT.    
TONIGHT
 
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON...SE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
 
BECOMING S WITH  
GUSTS TO 25 KT LATE. WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE OF  
TSTMS.    
MON NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
 
BECOMING W  
5 KT AFTER MIDNIGHT. WAVES 1 FT. SHOWERS WITH A CHANCE OF TSTMS.    
TUE
 
NW WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT
 
N WINDS 5 TO 10 KT. WAVES 1 FT.    
WED...NW WINDS 5 TO 10 KT
 
BECOMING SW. WAVES 1 FT OR LESS.    
THU
 
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ531-220800-  
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-  
457 PM EDT SUN JUN 21 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH MONDAY  
AFTERNOON...  
   
REST OF THIS AFTERNOON
 
W WINDS 10 KT. WAVES 1 FT.    
TONIGHT
 
E WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON...SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
 
BECOMING S 15 TO  
20 KT WITH GUSTS TO 30 KT IN THE AFTERNOON. WAVES 2 TO 3 FT. SHOWERS  
WITH A CHANCE OF TSTMS.    
MON NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
 
BECOMING W  
5 TO 10 KT AFTER MIDNIGHT. WAVES 3 FT...SUBSIDING TO 1 FT AFTER  
MIDNIGHT. SHOWERS WITH A CHANCE OF TSTMS.    
TUE
 
NW WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT
 
N WINDS 5 TO 10 KT. WAVES 1 FT.    
WED...NW WINDS 5 TO 10 KT
 
BECOMING S. WAVES 1 FT OR LESS.    
THU
 
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ538-220800-  
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-  
457 PM EDT SUN JUN 21 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT MONDAY AFTERNOON
 
 
   
REST OF THIS AFTERNOON
 
W WINDS 10 KT. WAVES 1 FT.    
TONIGHT
 
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON...SE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
 
BECOMING S WITH  
GUSTS TO 25 KT LATE. WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE OF  
TSTMS.    
MON NIGHT
 
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.  
WAVES 1 FT OR LESS. SHOWERS WITH A CHANCE OF TSTMS.    
TUE
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
TUE NIGHT
 
N WINDS 5 TO 10 KT. WAVES 1 FT.    
WED
 
W WINDS AROUND 5 KT. WAVES FLAT.    
THU
 
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. 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.  
 

 
 
ANZ539-220800-  
CHESTER RIVER TO QUEENSTOWN MD-  
457 PM EDT SUN JUN 21 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH MONDAY  
AFTERNOON...  
   
REST OF THIS AFTERNOON
 
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT
 
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON...S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
 
BECOMING 15 KT  
WITH GUSTS TO 25 KT LATE. WAVES 1 FT...BUILDING TO 3 FT IN THE  
AFTERNOON. SHOWERS LIKELY WITH A CHANCE OF TSTMS.    
MON NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
 
BECOMING W  
5 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE OF  
TSTMS.    
TUE
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
TUE NIGHT
 
N WINDS 5 TO 10 KT. WAVES 1 FT.    
WED...N WINDS 5 TO 10 KT
 
BECOMING S. WAVES 1 FT OR LESS.    
THU
 
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS  
THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ532-220800-  
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-  
457 PM EDT SUN JUN 21 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH MONDAY  
AFTERNOON...  
   
REST OF THIS AFTERNOON
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT
 
SE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON...S WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT
 
 
BUILDING TO 4 FT IN THE AFTERNOON. SHOWERS LIKELY WITH A CHANCE OF  
TSTMS.    
MON NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
 
BECOMING W  
5 TO 10 KT AFTER MIDNIGHT. WAVES 4 FT...SUBSIDING TO 1 FT AFTER  
MIDNIGHT. SHOWERS WITH A CHANCE OF TSTMS.    
TUE
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
TUE NIGHT
 
N WINDS 5 TO 10 KT. WAVES 1 FT.    
WED...N WINDS 5 TO 10 KT
 
BECOMING SE. WAVES 1 FT OR LESS.    
THU...S WINDS 10 TO 15 KT. WAVES 1 FT
 
BUILDING TO 2 TO 3 FT. A  
CHANCE OF SHOWERS AND TSTMS THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ540-220800-  
EASTERN BAY-  
457 PM EDT SUN JUN 21 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH MONDAY  
AFTERNOON...  
   
REST OF THIS AFTERNOON
 
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT
 
E WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON...S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
 
INCREASING TO  
15 TO 20 KT WITH GUSTS TO 25 KT LATE. WAVES 1 TO 2 FT. SHOWERS  
LIKELY WITH A CHANCE OF TSTMS.    
MON NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
 
BECOMING W  
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE OF  
TSTMS.    
TUE
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
TUE NIGHT
 
N WINDS 5 TO 10 KT. WAVES 1 FT.    
WED...N WINDS 5 TO 10 KT
 
BECOMING SE. WAVES 1 FT OR LESS.    
THU...S WINDS AROUND 5 KT
 
INCREASING TO 10 TO 15 KT. WAVES 1 FT  
OR LESS. A CHANCE OF SHOWERS AND TSTMS THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ533-220800-  
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-  
457 PM EDT SUN JUN 21 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH MONDAY  
AFTERNOON...  
   
REST OF THIS AFTERNOON
 
S WINDS 5 KT. WAVES LESS THAN 1 FT.   
TONIGHT
 
SE WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON...S WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT
 
 
BUILDING TO 4 FT IN THE AFTERNOON. A CHANCE OF SHOWERS AND TSTMS.    
MON NIGHT...S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
 
BECOMING W  
5 TO 10 KT AFTER MIDNIGHT. WAVES 4 FT...SUBSIDING TO 1 FT AFTER  
MIDNIGHT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.    
TUE
 
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
TUE NIGHT
 
N WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.    
WED...N WINDS 5 TO 10 KT
 
BECOMING SE. WAVES 1 FT.    
THU...S WINDS 15 TO 20 KT. WAVES 1 FT
 
BUILDING TO 2 TO 3 FT. A  
CHANCE OF SHOWERS AND TSTMS THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ541-220800-  
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-  
457 PM EDT SUN JUN 21 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH MONDAY  
AFTERNOON...  
   
REST OF THIS AFTERNOON
 
W WINDS 5 KT. WAVES FLAT.    
TONIGHT
 
SE WINDS 5 KT. WAVES FLAT.    
MON
 
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.    
MON NIGHT...S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
 
BECOMING SW  
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE OF  
TSTMS.    
TUE
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
TUE NIGHT
 
N WINDS 5 TO 10 KT. WAVES 1 FT.    
WED...N WINDS 5 TO 10 KT
 
BECOMING S AFTER MIDNIGHT. WAVES 1 FT OR  
LESS.    
THU...S WINDS AROUND 5 KT
 
INCREASING TO 10 TO 15 KT. WAVES 1 TO  
2 FT. A CHANCE OF SHOWERS AND TSTMS AFTER MIDNIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ542-220800-  
PATUXENT RIVER TO BROOMES ISLAND MD-  
457 PM EDT SUN JUN 21 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT MONDAY AFTERNOON
 
 
   
REST OF THIS AFTERNOON
 
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT
 
SE WINDS AROUND 5 KT. WAVES 1 FT.    
MON
 
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.    
MON NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
 
BECOMING SW  
5 KT AFTER MIDNIGHT. WAVES 1 FT. SHOWERS WITH A CHANCE OF TSTMS.    
TUE
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE  
OF TSTMS.    
TUE NIGHT
 
N WINDS 5 TO 10 KT. WAVES 1 FT.    
WED
 
NE WINDS AROUND 5 KT. WAVES 1 FT.    
THU
 
S WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS AFTER  
MIDNIGHT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ534-220800-  
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-  
457 PM EDT SUN JUN 21 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH MONDAY  
AFTERNOON...  
   
REST OF THIS AFTERNOON
 
SE WINDS 10 KT. WAVES 1 FT.    
TONIGHT
 
SE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON...S WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT
 
 
BUILDING TO 4 FT IN THE AFTERNOON.    
MON NIGHT...S WINDS 15 TO 20 KT WITH GUSTS TO 30 KT
 
BECOMING SW  
10 TO 15 KT AFTER MIDNIGHT. WAVES 4 FT... SUBSIDING TO 2 FT AFTER  
MIDNIGHT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.    
TUE
 
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF TSTMS.    
TUE NIGHT
 
N WINDS 10 KT. WAVES 2 FT.    
WED...N WINDS 5 TO 10 KT
 
BECOMING SE. WAVES 1 TO 2 FT.    
THU...S WINDS 5 KT...INCREASING TO 15 TO 20 KT. WAVES 1 FT
 
 
BUILDING TO 3 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ543-220800-  
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-  
457 PM EDT SUN JUN 21 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH MONDAY  
AFTERNOON...  
   
REST OF THIS AFTERNOON
 
S WINDS 10 KT. WAVES 1 FT.    
TONIGHT
 
SE WINDS 5 TO 10 KT. WAVES 1 FT.    
MON
 
S WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 TO 3 FT.    
MON NIGHT...S WINDS 15 TO 20 KT WITH GUSTS TO 30 KT
 
BECOMING SW  
10 TO 15 KT WITH GUSTS TO 20 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT.  
SHOWERS LIKELY WITH A CHANCE OF TSTMS.    
TUE
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
TUE NIGHT
 
N WINDS 10 TO 15 KT. WAVES 1 FT.    
WED...NW WINDS 5 TO 10 KT
 
BECOMING S. WAVES 1 FT.    
THU...S WINDS 5 KT
 
INCREASING TO 10 TO 15 KT. WAVES 1 TO 2 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
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