255  
FZUS51 KLWX 311738  
CWFLWX  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
137 PM EDT SAT MAY 31 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.  
 
ANZ500-010800-  
137 PM EDT SAT MAY 31 2025  
 
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...  
 
A COLD FRONT WILL CROSS THE AREA THIS AFTERNOON. SHOWERS AND  
THUNDERSTORMS WILL DEVELOP AND MOVE ACROSS THE WATERS. HIGH PRESSURE  
BUILDS LATER TONIGHT THROUGH MUCH OF NEXT WEEK. ANOTHER FRONTAL  
SYSTEM APPROACHES TOWARDS THE END OF THE WEEK, BRINGING RENEWED  
CHANCES FOR SHOWERS AND THUNDERSTORMS.  
 
 
 
ANZ535-010800-  
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-  
137 PM EDT SAT MAY 31 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING  
 
   
THIS AFTERNOON  
W WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.  
NUMEROUS SHOWERS AND SCATTERED TSTMS.    
TONIGHT  
NW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT. WAVES 1 FT.    
SUN  
W WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN NIGHT  
NW WINDS AROUND 5 KT. WAVES 1 FT.    
MON  
NW WINDS AROUND 5 KT. WAVES 1 FT.    
MON NIGHT  
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
TUE  
SW WINDS AROUND 5 KT. WAVES 1 FT.    
WED  
S WINDS AROUND 5 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ536-010800-  
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-  
137 PM EDT SAT MAY 31 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING  
 
   
THIS AFTERNOON  
W WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO  
2 FT. SCATTERED SHOWERS AND TSTMS.    
TONIGHT  
NW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE EVENING.  
WAVES 1 TO 2 FT.    
SUN  
W WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN NIGHT  
NW WINDS AROUND 5 KT. WAVES 1 FT.    
MON  
NW WINDS AROUND 5 KT. WAVES 1 FT.    
MON NIGHT  
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
TUE  
S WINDS AROUND 5 KT. WAVES 1 FT.    
WED  
S WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ537-010800-  
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-  
137 PM EDT SAT MAY 31 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT  
 
   
THIS AFTERNOON  
W WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.  
NUMEROUS SHOWERS AND SCATTERED TSTMS.    
TONIGHT  
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.  
SCATTERED SHOWERS AND TSTMS.    
SUN...W WINDS 10 TO 15 KT  
BECOMING SW 5 TO 10 KT LATE. WAVES 1 TO  
2 FT.    
SUN NIGHT  
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON  
N WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON NIGHT  
SW WINDS 5 KT. WAVES FLAT.    
TUE  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
WED  
S WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ530-010800-  
CHESAPEAKE BAY NORTH OF POOLES ISLAND-  
137 PM EDT SAT MAY 31 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT  
 
   
THIS AFTERNOON  
W WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.  
NUMEROUS SHOWERS AND SCATTERED TSTMS.    
TONIGHT  
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO  
2 FT. SCATTERED SHOWERS AND TSTMS.    
SUN  
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
SUN NIGHT  
W WINDS 5 TO 10 KT. WAVES 1 FT.    
MON  
NW WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON NIGHT  
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
TUE  
SW WINDS AROUND 5 KT. WAVES 1 FT.    
WED  
S WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ531-010800-  
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-  
137 PM EDT SAT MAY 31 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT  
 
   
THIS AFTERNOON  
W WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.  
WIDESPREAD SHOWERS AND SCATTERED TSTMS.    
TONIGHT  
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.    
SUN  
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.    
SUN NIGHT  
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
MON  
NW WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON NIGHT  
SW WINDS 5 KT. WAVES FLAT.    
TUE  
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
WED  
S WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ538-010800-  
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-  
137 PM EDT SAT MAY 31 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT  
 
   
THIS AFTERNOON  
W WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.  
WIDESPREAD SHOWERS AND SCATTERED TSTMS.    
TONIGHT  
NW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT UNTIL EARLY  
MORNING. WAVES 1 FT.    
SUN  
W WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN NIGHT  
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON  
NW WINDS 5 KT. WAVES FLAT.    
MON NIGHT  
SW WINDS AROUND 5 KT. WAVES FLAT.    
TUE  
SW WINDS AROUND 5 KT. WAVES FLAT.    
WED  
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ539-010800-  
CHESTER RIVER TO QUEENSTOWN MD-  
137 PM EDT SAT MAY 31 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT  
 
   
THIS AFTERNOON  
W WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 TO  
3 FT. WIDESPREAD SHOWERS AND SCATTERED TSTMS.    
TONIGHT  
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO  
3 FT. SCATTERED SHOWERS AND TSTMS.    
SUN  
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.    
SUN NIGHT  
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON  
NW WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON NIGHT  
SW WINDS 5 KT. WAVES FLAT.    
TUE  
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
WED  
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ532-010800-  
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-  
137 PM EDT SAT MAY 31 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT  
 
   
THIS AFTERNOON  
W WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.  
WIDESPREAD SHOWERS AND SCATTERED TSTMS.    
TONIGHT  
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.  
SCATTERED SHOWERS AND TSTMS.    
SUN  
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.    
SUN NIGHT  
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON  
NW WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON NIGHT  
SW WINDS 5 KT. WAVES FLAT.    
TUE  
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
WED  
S WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ540-010800-  
EASTERN BAY-  
137 PM EDT SAT MAY 31 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT  
 
   
THIS AFTERNOON  
W WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.  
WIDESPREAD SHOWERS AND SCATTERED TSTMS.    
TONIGHT  
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.  
SCATTERED SHOWERS AND TSTMS.    
SUN  
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.    
SUN NIGHT  
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON  
NW WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON NIGHT  
SW WINDS 5 KT. WAVES FLAT.    
TUE  
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
WED  
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ533-010800-  
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-  
137 PM EDT SAT MAY 31 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT  
 
   
THIS AFTERNOON  
W WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 TO  
3 FT. WIDESPREAD SHOWERS AND NUMEROUS TSTMS.    
TONIGHT  
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.  
SCATTERED SHOWERS AND TSTMS.    
SUN...W WINDS 10 TO 15 KT  
BECOMING SW 5 TO 10 KT LATE. GUSTS UP  
TO 20 KT. WAVES 1 TO 2 FT.    
SUN NIGHT...SW WINDS 5 TO 10 KT  
BECOMING NW AFTER MIDNIGHT. WAVES  
1 FT.    
MON  
NW WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON NIGHT  
SW WINDS 5 KT. WAVES FLAT.    
TUE  
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
WED  
S WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ541-010800-  
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-  
137 PM EDT SAT MAY 31 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT  
 
   
THIS AFTERNOON  
W WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.  
WIDESPREAD SHOWERS AND SCATTERED TSTMS.    
TONIGHT  
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.  
SCATTERED SHOWERS AND TSTMS.    
SUN...W WINDS 10 TO 15 KT  
BECOMING SW 5 TO 10 KT LATE. GUSTS UP  
TO 20 KT. WAVES 1 TO 2 FT.    
SUN NIGHT  
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON  
NW WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON NIGHT  
SW WINDS 5 KT. WAVES FLAT.    
TUE  
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
WED  
S WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ542-010800-  
PATUXENT RIVER TO BROOMES ISLAND MD-  
137 PM EDT SAT MAY 31 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT  
 
   
THIS AFTERNOON  
W WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.  
WIDESPREAD SHOWERS AND NUMEROUS TSTMS.    
TONIGHT  
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.  
SCATTERED SHOWERS AND TSTMS.    
SUN  
W WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN NIGHT  
W WINDS AROUND 5 KT. WAVES 1 FT.    
MON  
NW WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON NIGHT  
SW WINDS AROUND 5 KT. WAVES 1 FT.    
TUE  
S WINDS 5 KT. WAVES LESS THAN 1 FT.    
WED  
S WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ534-010800-  
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-  
137 PM EDT SAT MAY 31 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT  
 
   
THIS AFTERNOON  
W WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES  
3 FT. NUMEROUS SHOWERS AND TSTMS.    
TONIGHT  
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.  
SCATTERED SHOWERS AND TSTMS.    
SUN...W WINDS 10 TO 15 KT  
BECOMING SW 5 TO 10 KT IN THE  
AFTERNOON. GUSTS UP TO 20 KT. WAVES 3 FT... SUBSIDING TO 1 FT IN THE  
AFTERNOON.    
SUN NIGHT...S WINDS 5 TO 10 KT  
BECOMING NW AFTER MIDNIGHT. WAVES  
1 FT.    
MON  
N WINDS 5 TO 10 KT. WAVES 1 FT.    
MON NIGHT  
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
TUE  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
 
ANZ543-010800-  
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-  
137 PM EDT SAT MAY 31 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT  
 
   
THIS AFTERNOON  
W WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES  
2 FT. NUMEROUS SHOWERS AND TSTMS.    
TONIGHT  
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.  
SCATTERED SHOWERS AND TSTMS.    
SUN...W WINDS 10 TO 15 KT  
BECOMING SW IN THE AFTERNOON. GUSTS UP  
TO 20 KT. WAVES 1 TO 2 FT.    
SUN NIGHT...S WINDS 5 TO 10 KT  
BECOMING N AFTER MIDNIGHT. WAVES  
1 FT.    
MON  
NW WINDS 5 TO 10 KT. WAVES 1 FT.    
MON NIGHT  
SW WINDS 5 KT. WAVES FLAT.    
TUE  
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
WED  
S WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 
 
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