518  
FZUS51 KLWX 062341  
CWFLWX  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
741 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.  
 
ANZ500-070800-  
741 PM EDT TUE MAY 6 2025  
 
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...  
 
A COLD FRONT WILL SLOWLY PULL OFFSHORE TONIGHT. HIGH PRESSURE  
BRIEFLY FOLLOWS FOR WEDNESDAY. A POTENT COLD FRONT IS EXPECTED TO  
MOVE SOUTHEAST FROM THE EASTERN GREAT LAKES TO AND ACROSS THE MID-  
ATLANTIC LATE IN THE WEEK. SMALL CRAFT ADVISORIES MAY BE NEEDED IN  
NORTHERLY FLOW THURSDAY NIGHT INTO FRIDAY.  
 
 
 
ANZ535-070800-  
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-  
741 PM EDT TUE MAY 6 2025  
   
TONIGHT  
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
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 WITH A  
CHANCE OF TSTMS.    
THU NIGHT  
N WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH  
A CHANCE OF TSTMS.    
FRI  
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
FRI NIGHT  
NW WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT  
NW WINDS AROUND 5 KT. WAVES 1 FT.    
SUN  
E WINDS AROUND 5 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ536-070800-  
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-  
741 PM EDT TUE MAY 6 2025  
   
TONIGHT  
SW WINDS 5 KT. WAVES LESS THAN 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 WITH A CHANCE  
OF TSTMS.    
THU NIGHT  
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
FRI  
N WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
FRI NIGHT  
NW WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT  
NW WINDS AROUND 5 KT. WAVES 1 FT.    
SUN  
E WINDS AROUND 5 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ537-070800-  
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-  
741 PM EDT TUE MAY 6 2025  
   
TONIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
WED  
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
WED NIGHT  
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
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 2 FT. A CHANCE OF SHOWERS.    
FRI NIGHT  
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.    
SAT  
NW WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN...N WINDS 5 KT  
BECOMING E. WAVES 1 FT.  
 
 
 
ANZ530-070800-  
CHESAPEAKE BAY NORTH OF POOLES ISLAND-  
741 PM EDT TUE MAY 6 2025  
   
TONIGHT  
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. ISOLATED SHOWERS.   
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 OR LESS. SHOWERS LIKELY.    
THU NIGHT  
N WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
FRI  
N WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
FRI NIGHT  
NW WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT  
W WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
W WINDS AROUND 5 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ531-070800-  
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-  
741 PM EDT TUE MAY 6 2025  
   
TONIGHT  
W WINDS 5 KT. WAVES LESS THAN 1 FT. ISOLATED SHOWERS.    
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 OR LESS. SHOWERS LIKELY.    
THU NIGHT  
N WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
FRI  
N WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.    
FRI NIGHT  
NW WINDS 10 TO 15 KT. WAVES 1 FT.    
SAT  
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
SUN  
E WINDS 5 KT. WAVES LESS THAN 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ538-070800-  
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-  
741 PM EDT TUE MAY 6 2025  
   
TONIGHT  
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. ISOLATED  
SHOWERS.    
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  
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
FRI NIGHT  
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
SAT  
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SUN  
E WINDS 5 KT. WAVES FLAT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ539-070800-  
CHESTER RIVER TO QUEENSTOWN MD-  
741 PM EDT TUE MAY 6 2025  
   
TONIGHT  
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
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 1 FT OR LESS. SHOWERS LIKELY.    
THU NIGHT  
N WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
FRI  
N WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
FRI NIGHT  
NW WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT  
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
SUN  
SW WINDS 5 KT. WAVES LESS THAN 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ532-070800-  
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-  
741 PM EDT TUE MAY 6 2025  
   
TONIGHT...W WINDS 5 TO 10 KT. WAVES 1 TO 2 FT  
SUBSIDING TO FLAT  
LATE.    
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 WITH A  
CHANCE OF TSTMS.    
FRI  
N WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.    
FRI NIGHT  
NW WINDS 10 TO 15 KT. WAVES 1 FT.    
SAT  
NW WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
E WINDS 5 KT. WAVES LESS THAN 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ540-070800-  
EASTERN BAY-  
741 PM EDT TUE MAY 6 2025  
   
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 OR LESS. SHOWERS LIKELY  
WITH A CHANCE OF TSTMS.    
FRI  
N WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
FRI NIGHT  
NW WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT  
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
SUN  
NE WINDS 5 KT. WAVES LESS THAN 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ533-070800-  
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-  
741 PM EDT TUE MAY 6 2025  
   
TONIGHT  
W WINDS 5 TO 10 KT. 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 OR LESS. SHOWERS LIKELY.    
THU NIGHT  
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
FRI  
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A CHANCE  
OF SHOWERS.    
FRI NIGHT  
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.    
SAT  
NW WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN...N WINDS 5 TO 10 KT  
BECOMING SE. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ541-070800-  
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-  
741 PM EDT TUE MAY 6 2025  
   
TONIGHT  
W WINDS 5 TO 10 KT. 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 WITH A CHANCE OF TSTMS.    
FRI  
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. A  
CHANCE OF SHOWERS.    
FRI NIGHT  
NW WINDS 10 TO 15 KT. WAVES 1 FT.    
SAT  
NW WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
NE WINDS 5 KT. WAVES LESS THAN 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ542-070800-  
PATUXENT RIVER TO BROOMES ISLAND MD-  
741 PM EDT TUE MAY 6 2025  
   
TONIGHT  
SW WINDS 5 TO 10 KT. 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 WITH A  
CHANCE OF TSTMS.    
FRI  
N WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
FRI NIGHT  
NW WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT  
W WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN  
E WINDS 5 KT. WAVES LESS THAN 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ534-070800-  
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-  
741 PM EDT TUE MAY 6 2025  
   
TONIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 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. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.    
FRI NIGHT  
NW WINDS 10 TO 15 KT. WAVES 2 FT.    
SAT  
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.    
SUN...NE WINDS 5 TO 10 KT  
BECOMING SE. WAVES 1 FT.  
 
 
 
ANZ543-070800-  
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-  
741 PM EDT TUE MAY 6 2025  
   
TONIGHT  
SW WINDS 5 TO 10 KT. 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 1 FT OR LESS. 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. WAVES 2 FT. A CHANCE OF SHOWERS.    
FRI NIGHT  
NW WINDS 10 TO 15 KT. WAVES 1 FT.    
SAT  
W WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN...N WINDS 5 TO 10 KT  
BECOMING S IN THE AFTERNOON AND EVENING,  
THEN BECOMING E AFTER MIDNIGHT. WAVES 1 FT.  
 
 
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