159  
FZUS51 KLWX 061800  
CWFLWX  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
ISSUED BY NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
200 PM EDT TUE MAY 6 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.  
 
ANZ500-070815-  
200 PM EDT TUE MAY 6 2025  
 
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...  
 
AN UPPER LEVEL LOW WILL SLOWLY MOVE NORTHEASTWARD AND CROSS THE  
NORTHEAST AND MID-ATLANTIC REGIONS BY TONIGHT, THEN IT WILL  
LIFT OUT DURING WEDNESDAY. A COLD FRONT WILL CROSS OUR AREA  
WEDNESDAY NIGHT AND THURSDAY MORNING. ANOTHER UPPER LEVEL LOW  
DEVELOPS ACROSS THE NORTHEAST AND MID-ATLANTIC REGIONS THURSDAY  
NIGHT AND FRIDAY WITH WEAK LOW PRESSURE NEARBY, THEN IT SHIFTS  
NORTHEAST ON SATURDAY. A COLD FRONT MAY THEN MOVE THROUGH DURING  
SUNDAY WITH HIGH PRESSURE ARRIVING FOR MONDAY.  
 

 
 
ANZ535-070815-  
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-  
200 PM EDT TUE MAY 6 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
 
 
   
THIS AFTERNOON
 
SW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A  
SLIGHT CHANCE OF SHOWERS AND TSTMS.    
TONIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT.    
WED
 
W WINDS 5 TO 10 KT. WAVES 1 FT.    
WED NIGHT
 
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
THU
 
NW WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY.    
THU NIGHT
 
N WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH  
A CHANCE OF TSTMS.    
FRI
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH  
THE DAY.    
SAT
 
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ536-070815-  
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-  
200 PM EDT TUE MAY 6 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
 
 
   
THIS AFTERNOON
 
SW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A  
SLIGHT CHANCE OF SHOWERS AND TSTMS.    
TONIGHT
 
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE  
EVENING. WAVES 1 FT.    
WED
 
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
WED NIGHT
 
N WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
THU
 
E WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY.    
THU NIGHT
 
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
FRI
 
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH  
THE DAY.    
SAT
 
NW WINDS AROUND 5 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ537-070815-  
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-  
200 PM EDT TUE MAY 6 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
 
 
   
THIS AFTERNOON
 
SW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A  
SLIGHT CHANCE OF SHOWERS.    
TONIGHT
 
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE  
EVENING. WAVES 1 FT OR LESS.    
WED
 
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
WED NIGHT
 
S WINDS AROUND 5 KT. WAVES FLAT.    
THU
 
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF  
SHOWERS.    
THU NIGHT
 
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.    
FRI
 
N WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH  
THE DAY.    
SAT
 
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.  
 

 
 
ANZ530-070815-  
CHESAPEAKE BAY NORTH OF POOLES ISLAND-  
200 PM EDT TUE MAY 6 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
 
 
   
THIS AFTERNOON
 
SW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO  
2 FT. A CHANCE OF SHOWERS AND TSTMS.    
TONIGHT
 
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE  
EVENING. WAVES 1 FT.    
WED
 
W WINDS 5 TO 10 KT. WAVES 1 FT.    
WED NIGHT
 
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
THU
 
NW WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
THU NIGHT
 
N WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.    
FRI
 
NW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH  
THE DAY.    
SAT
 
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ531-070815-  
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-  
200 PM EDT TUE MAY 6 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
 
 
   
THIS AFTERNOON
 
S WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO  
2 FT. A CHANCE OF SHOWERS AND TSTMS.    
TONIGHT
 
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
WED
 
W WINDS 5 TO 10 KT. WAVES 1 FT.    
WED NIGHT
 
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
THU
 
NW WINDS AROUND 5 KT. WAVES FLAT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
THU NIGHT
 
N WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
FRI
 
NW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH  
THE DAY.    
SAT
 
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ538-070815-  
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-  
200 PM EDT TUE MAY 6 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
 
 
   
THIS AFTERNOON
 
SW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A  
CHANCE OF SHOWERS AND TSTMS.    
TONIGHT
 
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
WED
 
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
WED NIGHT
 
W WINDS AROUND 5 KT. WAVES FLAT.    
THU
 
NE WINDS AROUND 5 KT. WAVES FLAT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
THU NIGHT
 
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. SHOWERS LIKELY  
WITH A CHANCE OF TSTMS.    
FRI
 
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
THROUGH THE DAY.    
SAT
 
NW WINDS AROUND 5 KT. WAVES FLAT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ539-070815-  
CHESTER RIVER TO QUEENSTOWN MD-  
200 PM EDT TUE MAY 6 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
 
 
   
THIS AFTERNOON
 
S WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A  
CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF TSTMS.    
TONIGHT
 
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
WED
 
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
WED NIGHT
 
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
THU
 
NW WINDS AROUND 5 KT. WAVES FLAT. SHOWERS LIKELY.    
THU NIGHT
 
N WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.    
FRI
 
NW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH  
THE DAY.    
SAT
 
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ532-070815-  
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-  
200 PM EDT TUE MAY 6 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
 
 
   
THIS AFTERNOON
 
S WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A  
SLIGHT CHANCE OF SHOWERS AND TSTMS.    
TONIGHT
 
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE  
EVENING. WAVES 1 FT.    
WED
 
W WINDS 5 TO 10 KT. WAVES 1 FT.    
WED NIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
THU
 
NE WINDS 5 KT. WAVES FLAT. SHOWERS LIKELY.    
THU NIGHT
 
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.    
FRI
 
NW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH  
THE DAY.    
SAT
 
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ540-070815-  
EASTERN BAY-  
200 PM EDT TUE MAY 6 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
 
 
   
THIS AFTERNOON
 
SW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A  
SLIGHT CHANCE OF SHOWERS AND TSTMS.    
TONIGHT
 
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
WED
 
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
WED NIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
THU
 
NW WINDS AROUND 5 KT. WAVES FLAT. SHOWERS LIKELY.    
THU NIGHT
 
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.    
FRI
 
NW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH  
THE DAY.    
SAT
 
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ533-070815-  
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-  
200 PM EDT TUE MAY 6 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
 
 
   
THIS AFTERNOON
 
S WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A  
SLIGHT CHANCE OF SHOWERS.    
TONIGHT
 
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE  
EVENING. WAVES 1 FT.    
WED
 
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
WED NIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
THU
 
NE WINDS AROUND 5 KT. WAVES FLAT. SHOWERS LIKELY.    
THU NIGHT
 
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.    
FRI
 
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS  
THROUGH THE DAY.    
SAT
 
NW WINDS 5 TO 10 KT. WAVES 1 FT.  
 

 
 
ANZ541-070815-  
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-  
200 PM EDT TUE MAY 6 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
 
 
   
THIS AFTERNOON
 
SW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A  
SLIGHT CHANCE OF SHOWERS.    
TONIGHT
 
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE  
EVENING. WAVES 1 FT OR LESS.    
WED
 
W WINDS 5 TO 10 KT. WAVES 1 FT.    
WED NIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
THU
 
NW WINDS AROUND 5 KT. WAVES FLAT. SHOWERS LIKELY.    
THU NIGHT...SE WINDS 5 TO 10 KT
 
BECOMING N AFTER MIDNIGHT. WAVES  
1 FT. SHOWERS LIKELY.    
FRI
 
NW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH  
THE DAY.    
SAT
 
NW WINDS 5 TO 10 KT. WAVES 1 FT.  
 

 
 
ANZ542-070815-  
PATUXENT RIVER TO BROOMES ISLAND MD-  
200 PM EDT TUE MAY 6 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
 
 
   
THIS AFTERNOON
 
SW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A  
SLIGHT CHANCE OF SHOWERS.    
TONIGHT
 
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE  
EVENING. WAVES 1 FT.    
WED
 
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
WED NIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
THU
 
NE WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY.    
THU NIGHT
 
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.    
FRI...N WINDS 10 TO 15 KT
 
BECOMING NW 5 KT AFTER MIDNIGHT. WAVES  
1 FT. A CHANCE OF SHOWERS THROUGH THE DAY.    
SAT
 
W WINDS 5 TO 10 KT. WAVES 1 FT.  
 

 
 
ANZ534-070815-  
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-  
200 PM EDT TUE MAY 6 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
 
 
   
THIS AFTERNOON
 
S WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A  
SLIGHT CHANCE OF SHOWERS.    
TONIGHT
 
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE  
EVENING. WAVES 1 FT.    
WED
 
W WINDS 5 TO 10 KT. WAVES 1 FT.    
WED NIGHT
 
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
THU
 
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS.   
THU NIGHT...SE WINDS 5 TO 10 KT
 
BECOMING NE AFTER MIDNIGHT. WAVES  
1 TO 2 FT. SHOWERS.   
FRI...N WINDS 15 TO 20 KT
 
BECOMING NW 10 KT AFTER MIDNIGHT. WAVES  
2 FT. A CHANCE OF SHOWERS THROUGH THE DAY.    
SAT
 
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.  
 

 
 
ANZ543-070815-  
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-  
200 PM EDT TUE MAY 6 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
 
 
   
THIS AFTERNOON
 
S WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A  
SLIGHT CHANCE OF SHOWERS.    
TONIGHT
 
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE  
EVENING. WAVES 1 FT.    
WED
 
W WINDS 5 TO 10 KT. WAVES 1 FT.    
WED NIGHT
 
S WINDS AROUND 5 KT. WAVES FLAT.    
THU
 
SE WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS.    
THU NIGHT...SE WINDS 5 TO 10 KT
 
BECOMING NE AFTER MIDNIGHT. WAVES  
1 FT. SHOWERS LIKELY.    
FRI...N WINDS 15 TO 20 KT
 
BECOMING NW 10 KT AFTER MIDNIGHT. WAVES  
1 FT. SHOWERS LIKELY, MAINLY IN THE MORNING.    
SAT
 
W WINDS 5 TO 10 KT. WAVES 1 FT.  
 

 
 
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