195  
FZUS51 KLWX 101201  
CWFLWX  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
801 AM EDT SUN MAY 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-  
801 AM EDT SUN MAY 10 2026  
 
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...  
 
A COLD FRONT WILL SLOWLY PUSH SOUTHEASTWARD THROUGH THE AREA BETWEEN  
THIS AFTERNOON INTO TONIGHT. LOW PRESSURE WILL RIDE ALONG THE  
BOUNDARY TO OUR SOUTH ON MONDAY. HIGH PRESSURE WILL BUILD IN FROM  
THE WEST ON TUESDAY BEFORE ANOTHER FRONTAL SYSTEM APPROACHES  
WEDNESDAY. SMALL CRAFT ADVISORIES MAY BE NEEDED AGAIN AT TIMES  
MONDAY NIGHT THROUGH TUESDAY MORNING AND AGAIN WEDNESDAY THROUGH  
THURSDAY.  
 

 
 
ANZ535-102000-  
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-  
801 AM EDT SUN MAY 10 2026  
   
TODAY
 
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THIS AFTERNOON.    
TONIGHT
 
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
MON
 
N WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.    
MON NIGHT
 
NW WINDS AROUND 5 KT. WAVES 1 FT.    
TUE
 
N WINDS AROUND 5 KT. WAVES 1 FT.    
TUE NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED
 
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE  
AFTERNOON. SHOWERS THROUGH THE NIGHT.    
THU
 
NW WINDS 5 TO 10 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-  
801 AM EDT SUN MAY 10 2026  
   
TODAY
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS  
AND TSTMS THIS AFTERNOON.    
TONIGHT
 
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
MON...N WINDS 5 TO 10 KT
 
BECOMING E LATE. WAVES 1 FT. SHOWERS  
LIKELY.    
MON NIGHT
 
W WINDS AROUND 5 KT. WAVES 1 FT.    
TUE
 
N WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED...S WINDS 10 TO 15 KT
 
BECOMING SW 5 KT AFTER MIDNIGHT. WAVES  
1 FT. A CHANCE OF SHOWERS IN THE AFTERNOON. SHOWERS THROUGH THE  
NIGHT.    
THU
 
NW WINDS 5 TO 10 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-  
801 AM EDT SUN MAY 10 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY  
MORNING...  
   
TODAY...SW WINDS 5 KT
 
BECOMING SE LATE. WAVES 1 FT OR LESS.    
TONIGHT...E WINDS 5 TO 10 KT
 
BECOMING N 10 TO 15 KT AFTER  
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.    
MON...N WINDS 10 TO 15 KT
 
BECOMING NE 5 KT LATE. GUSTS UP TO  
20 KT. WAVES 2 FT. SHOWERS LIKELY.    
MON NIGHT...SE WINDS AROUND 5 KT
 
BECOMING N AFTER MIDNIGHT. WAVES  
1 FT.    
TUE
 
N WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED
 
S WINDS 10 TO 15 KT. WAVES 2 FT. A CHANCE OF SHOWERS IN THE  
AFTERNOON. SHOWERS THROUGH THE NIGHT.    
THU
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE  
MORNING.  
 

 
 
ANZ530-102000-  
CHESAPEAKE BAY NORTH OF POOLES ISLAND-  
801 AM EDT SUN MAY 10 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY  
MORNING...  
   
TODAY
 
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. SHOWERS LIKELY WITH  
A CHANCE OF TSTMS THIS AFTERNOON.    
TONIGHT
 
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.  
WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS.    
MON...N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT
 
BECOMING SW LATE.  
WAVES 1 FT. A CHANCE OF SHOWERS.    
MON NIGHT
 
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
TUE
 
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
TUE NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
WED
 
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN  
THE AFTERNOON. SHOWERS THROUGH THE NIGHT.    
THU
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ531-102000-  
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-  
801 AM EDT SUN MAY 10 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY  
MORNING...  
   
TODAY...W WINDS 5 KT
 
BECOMING S THIS AFTERNOON. WAVES 1 FT OR  
LESS. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF TSTMS THIS  
AFTERNOON.    
TONIGHT
 
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.  
A CHANCE OF SHOWERS AND TSTMS.    
MON...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
 
BECOMING W 5 KT IN  
THE AFTERNOON. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.    
MON NIGHT...SW WINDS AROUND 5 KT
 
BECOMING N AFTER MIDNIGHT. WAVES  
1 FT OR LESS.    
TUE
 
N WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT
 
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.    
WED
 
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN  
THE AFTERNOON. SHOWERS THROUGH THE NIGHT.    
THU
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE  
MORNING.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ538-102000-  
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-  
801 AM EDT SUN MAY 10 2026  
   
TODAY
 
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. SHOWERS LIKELY  
WITH A CHANCE OF TSTMS THIS AFTERNOON.    
TONIGHT
 
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
MON...NE WINDS 5 TO 10 KT
 
BECOMING SE LATE. WAVES 1 FT OR LESS. A  
CHANCE OF SHOWERS.    
MON NIGHT...SW WINDS AROUND 5 KT
 
BECOMING N AFTER MIDNIGHT. WAVES  
1 FT OR LESS.    
TUE
 
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
TUE NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
WED...S WINDS 10 TO 15 KT
 
BECOMING SW 5 KT AFTER MIDNIGHT. WAVES  
1 FT. A CHANCE OF SHOWERS IN THE AFTERNOON. SHOWERS THROUGH THE  
NIGHT.    
THU
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE  
MORNING.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ539-102000-  
CHESTER RIVER TO QUEENSTOWN MD-  
801 AM EDT SUN MAY 10 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY  
MORNING...  
   
TODAY...W WINDS 5 KT
 
BECOMING S THIS AFTERNOON. WAVES 1 FT OR  
LESS. A CHANCE OF SHOWERS AND TSTMS THIS AFTERNOON.    
TONIGHT
 
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.  
A CHANCE OF SHOWERS AND TSTMS.    
MON...N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT
 
BECOMING SW LATE.  
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.    
MON NIGHT...SW WINDS AROUND 5 KT
 
BECOMING N AFTER MIDNIGHT. WAVES  
1 FT OR LESS.    
TUE
 
NW WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
WED
 
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN  
THE AFTERNOON. SHOWERS THROUGH THE NIGHT.    
THU
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE  
MORNING.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ532-102000-  
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-  
801 AM EDT SUN MAY 10 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY  
MORNING...  
   
TODAY...SW WINDS 5 KT
 
BECOMING S THIS AFTERNOON. WAVES 1 FT OR  
LESS. A CHANCE OF SHOWERS AND TSTMS THIS AFTERNOON.    
TONIGHT
 
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.  
A CHANCE OF SHOWERS AND TSTMS.    
MON...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
 
BECOMING E 5 KT IN  
THE AFTERNOON. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.    
MON NIGHT...SW WINDS 5 KT
 
BECOMING N AFTER MIDNIGHT. WAVES 1 FT  
OR LESS.    
TUE
 
N WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT
 
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.  
WAVES 1 TO 2 FT.    
WED
 
S WINDS 10 TO 15 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS IN  
THE AFTERNOON. SHOWERS THROUGH THE NIGHT.    
THU
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE  
MORNING.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ540-102000-  
EASTERN BAY-  
801 AM EDT SUN MAY 10 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY  
MORNING...  
   
TODAY...SW WINDS 5 KT
 
BECOMING S LATE. WAVES 1 FT OR LESS. A  
CHANCE OF SHOWERS AND TSTMS THIS AFTERNOON.    
TONIGHT
 
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.  
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND TSTMS.    
MON...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
 
BECOMING NW 5 KT  
IN THE AFTERNOON. WAVES 1 FT. A CHANCE OF SHOWERS.    
MON NIGHT...SW WINDS AROUND 5 KT
 
BECOMING N AFTER MIDNIGHT. WAVES  
1 FT OR LESS.    
TUE
 
N WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
WED
 
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN  
THE AFTERNOON. SHOWERS THROUGH THE NIGHT.    
THU
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE  
MORNING.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ533-102000-  
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-  
801 AM EDT SUN MAY 10 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY  
MORNING...  
   
TODAY...SW WINDS 5 KT
 
BECOMING SE LATE. WAVES 1 FT.    
TONIGHT...N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT
 
 
BUILDING TO 3 FT AFTER MIDNIGHT. A CHANCE OF SHOWERS.    
MON...N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
 
BECOMING E 5 KT  
LATE. WAVES 2 TO 3 FT. SHOWERS LIKELY.    
MON NIGHT...S WINDS AROUND 5 KT
 
BECOMING N AFTER MIDNIGHT. WAVES  
FLAT...BUILDING TO 2 FT AFTER MIDNIGHT.    
TUE
 
N WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.    
TUE NIGHT
 
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.    
WED
 
S WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS IN  
THE AFTERNOON. SHOWERS THROUGH THE NIGHT.    
THU
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE  
MORNING.  
 

 
 
ANZ541-102000-  
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-  
801 AM EDT SUN MAY 10 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY  
MORNING...  
   
TODAY
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT
 
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.  
A CHANCE OF SHOWERS.    
MON...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
 
BECOMING NW 5 KT  
LATE. WAVES 1 TO 2 FT. SHOWERS LIKELY.    
MON NIGHT...SW WINDS AROUND 5 KT
 
BECOMING N AFTER MIDNIGHT. WAVES  
1 FT OR LESS.    
TUE
 
N WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT
 
S WINDS 10 TO 15 KT. WAVES 1 FT.    
WED
 
S WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS IN THE  
AFTERNOON. SHOWERS THROUGH THE NIGHT.    
THU
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE  
MORNING.  
 

 
 
ANZ542-102000-  
PATUXENT RIVER TO BROOMES ISLAND MD-  
801 AM EDT SUN MAY 10 2026  
   
TODAY...SW WINDS 5 KT
 
BECOMING SE LATE. WAVES 1 FT.    
TONIGHT
 
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
MON
 
N WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.    
MON NIGHT
 
W WINDS AROUND 5 KT. WAVES 1 FT.    
TUE
 
N WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
WED
 
S WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE  
AFTERNOON. SHOWERS THROUGH THE NIGHT.    
THU
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE  
MORNING.  
 

 
 
ANZ534-102000-  
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-  
801 AM EDT SUN MAY 10 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY  
MORNING...  
   
TODAY...SW WINDS 5 KT
 
BECOMING SE THIS AFTERNOON. WAVES 1 FT.    
TONIGHT...SE WINDS 5 TO 10 KT
 
BECOMING NE 10 TO 15 KT IN THE LATE  
EVENING AND EARLY MORNING, THEN BECOMING N LATE. GUSTS UP TO 20 KT.  
WAVES 2 TO 3 FT.    
MON
 
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 2 TO 3 FT.  
SHOWERS LIKELY.    
MON NIGHT...SE WINDS AROUND 5 KT
 
BECOMING N 10 TO 15 KT WITH  
GUSTS TO 20 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.    
TUE
 
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.    
TUE NIGHT
 
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.    
WED
 
S WINDS 15 TO 20 KT. WAVES 3 FT. A CHANCE OF SHOWERS IN THE  
AFTERNOON. SHOWERS THROUGH THE NIGHT.    
THU
 
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN  
THE MORNING.  
 

 
 
ANZ543-102000-  
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-  
801 AM EDT SUN MAY 10 2026  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY  
MORNING...  
   
TODAY...SW WINDS 5 KT
 
BECOMING S LATE. WAVES 1 FT.    
TONIGHT...S WINDS 5 TO 10 KT
 
BECOMING NE 10 TO 15 KT IN THE LATE  
EVENING AND OVERNIGHT. GUSTS UP TO 20 KT. WAVES 1 TO 2 FT.    
MON
 
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.  
SHOWERS LIKELY.    
MON NIGHT...SE WINDS AROUND 5 KT
 
BECOMING N AFTER MIDNIGHT. WAVES  
1 FT.    
TUE...N WINDS 10 TO 15 KT
 
BECOMING NW 5 TO 10 KT IN THE  
AFTERNOON. WAVES 1 FT.    
TUE NIGHT
 
S WINDS 10 TO 15 KT. WAVES 1 FT.    
WED
 
S WINDS 15 TO 20 KT. WAVES 2 FT. SHOWERS THROUGH THE NIGHT.    
THU
 
NW WINDS 10 TO 15 KT. WAVES 1 FT. SHOWERS LIKELY IN THE  
MORNING.  
 

 
 
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