213  
FZUS51 KLWX 052058  
CWFLWX  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
458 PM EDT WED AUG 5 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.  
 
ANZ500-060800-  
458 PM EDT WED AUG 5 2026  
 
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...  
 
DAILY SHOWER AND THUNDERSTORM CHANCES RETURN TO THE FORECAST THROUGH  
THE WEEKEND, WITH GUSTY WINDS POSSIBLE IN THE STRONGEST  
THUNDERSTORMS ESPECIALLY LATER THIS WEEK. ADDITIONAL SMALL CRAFT  
ADVISORIES MAY BE NEEDED AT TIMES LATE THIS WEEK DUE TO PERIODS OF  
SOUTHERLY CHANNELING.  
 
 
 
ANZ535-060800-  
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-  
458 PM EDT WED AUG 5 2026  
   
REST OF THIS AFTERNOON  
S WINDS 5 KT. WAVES LESS THAN 1 FT. A  
CHANCE OF SHOWERS AND TSTMS.    
TONIGHT  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
THU  
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING  
AND AFTERNOON. WAVES 1 FT.    
THU NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
FRI  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
FRI NIGHT  
SW WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
SAT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.    
SUN  
W WINDS AROUND 5 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ536-060800-  
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-  
458 PM EDT WED AUG 5 2026  
   
REST OF THIS AFTERNOON  
S WINDS 10 KT. WAVES 1 FT. A CHANCE OF  
SHOWERS AND TSTMS.    
TONIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
THU  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
THU NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
FRI  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
FRI NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
SAT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.    
SUN  
SW WINDS AROUND 5 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ537-060800-  
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-  
458 PM EDT WED AUG 5 2026  
   
REST OF THIS AFTERNOON  
S WINDS 10 KT. WAVES 1 FT. A SLIGHT CHANCE  
OF SHOWERS AND TSTMS.    
TONIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
THU  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
THU NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
FRI  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
FRI NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
SAT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
SUN  
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ530-060800-  
CHESAPEAKE BAY NORTH OF POOLES ISLAND-  
458 PM EDT WED AUG 5 2026  
   
REST OF THIS AFTERNOON  
S WINDS 5 KT. WAVES LESS THAN 1 FT. A  
CHANCE OF SHOWERS AND TSTMS.    
TONIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
THU  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
THU NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
FRI  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
FRI NIGHT  
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF  
SHOWERS AND TSTMS.    
SAT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
SUN  
W WINDS AROUND 5 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ531-060800-  
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-  
458 PM EDT WED AUG 5 2026  
   
REST OF THIS AFTERNOON  
S WINDS 10 KT. WAVES 1 FT. A CHANCE OF  
SHOWERS AND TSTMS.    
TONIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
THU  
S WINDS 10 KT. WAVES 1 TO 2 FT.    
THU NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.    
FRI  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
FRI NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
SAT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.    
SUN  
SW WINDS 5 KT. WAVES LESS THAN 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ538-060800-  
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-  
458 PM EDT WED AUG 5 2026  
   
REST OF THIS AFTERNOON  
SE WINDS 10 KT. WAVES 1 FT. SHOWERS WITH A  
CHANCE OF TSTMS.    
TONIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
THU  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
THU NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.   
FRI  
SW WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
FRI NIGHT  
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF  
SHOWERS AND TSTMS.    
SAT  
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS THROUGH THE NIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.    
SUN  
SW WINDS AROUND 5 KT. WAVES FLAT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ539-060800-  
CHESTER RIVER TO QUEENSTOWN MD-  
458 PM EDT WED AUG 5 2026  
   
REST OF THIS AFTERNOON  
S WINDS 5 KT. WAVES LESS THAN 1 FT. A  
SLIGHT CHANCE OF SHOWERS AND TSTMS.    
TONIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
THU  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
THU NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
FRI  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
FRI NIGHT  
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF  
SHOWERS AND TSTMS.    
SAT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.    
SUN  
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ532-060800-  
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-  
458 PM EDT WED AUG 5 2026  
   
REST OF THIS AFTERNOON  
S WINDS 10 KT. WAVES 2 FT. A SLIGHT CHANCE  
OF SHOWERS AND TSTMS.    
TONIGHT  
S WINDS 10 KT. WAVES 2 FT.    
THU  
S WINDS 10 KT. WAVES 1 TO 2 FT.    
THU NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF  
SHOWERS.    
FRI  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
FRI NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
SAT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.    
SUN  
SW WINDS 5 KT. WAVES LESS THAN 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ540-060800-  
EASTERN BAY-  
458 PM EDT WED AUG 5 2026  
   
REST OF THIS AFTERNOON  
S WINDS 10 KT. WAVES 1 FT.    
TONIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
THU  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
THU NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
FRI  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
FRI NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
SAT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.    
SUN  
SW WINDS 5 KT. WAVES LESS THAN 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ533-060800-  
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-  
458 PM EDT WED AUG 5 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING  
 
   
REST OF THIS AFTERNOON  
S WINDS 15 KT. WAVES 2 FT. A SLIGHT CHANCE  
OF SHOWERS AND TSTMS.    
TONIGHT  
S WINDS 10 TO 15 KT. WAVES 2 FT.    
THU  
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.    
THU NIGHT  
SW WINDS 10 KT. WAVES 1 TO 2 FT.    
FRI  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
FRI NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
SAT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
SUN  
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ541-060800-  
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-  
458 PM EDT WED AUG 5 2026  
   
REST OF THIS AFTERNOON  
S WINDS 10 KT. WAVES 1 FT. A SLIGHT CHANCE  
OF SHOWERS AND TSTMS.    
TONIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
THU  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
THU NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
FRI  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
FRI NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
SAT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
SUN  
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ542-060800-  
PATUXENT RIVER TO BROOMES ISLAND MD-  
458 PM EDT WED AUG 5 2026  
   
REST OF THIS AFTERNOON  
S WINDS 10 KT. WAVES 1 FT. A SLIGHT CHANCE  
OF SHOWERS AND TSTMS.    
TONIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FT.    
THU  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
THU NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
FRI  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.    
FRI NIGHT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
SAT  
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
SUN  
SW WINDS AROUND 5 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ534-060800-  
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-  
458 PM EDT WED AUG 5 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING  
 
   
REST OF THIS AFTERNOON  
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES  
2 FT. A SLIGHT CHANCE OF SHOWERS AND TSTMS.    
TONIGHT  
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
THU  
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
THU NIGHT  
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
FRI  
SW WINDS 10 KT. WAVES 2 FT.    
FRI NIGHT  
SW WINDS 10 TO 15 KT. WAVES 2 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
SAT  
SW WINDS 10 TO 15 KT. WAVES 2 FT. A CHANCE OF SHOWERS AND  
TSTMS THROUGH THE NIGHT.    
SUN  
SW WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ543-060800-  
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-  
458 PM EDT WED AUG 5 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING  
 
   
REST OF THIS AFTERNOON  
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES  
2 FT.    
TONIGHT  
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
THU  
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.    
THU NIGHT  
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
FRI  
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.    
FRI NIGHT  
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF  
SHOWERS AND TSTMS.    
SAT  
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS  
AND TSTMS THROUGH THE NIGHT.    
SUN  
SW WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
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