273  
FZUS51 KLWX 201432  
CWFLWX  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1032 AM EDT SUN AUG 20 2017  
 
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.  
 
ANZ500-202000-  
1032 AM EDT SUN AUG 20 2017  
 
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...  
 
HIGH PRESSURE WILL MOVE OFFSHORE THROUGH TONIGHT. A COLD FRONT WILL  
CROSS THE WATERS LATE TUESDAY NIGHT INTO EARLY WEDNESDAY. HIGH  
PRESSURE WILL RETURN FOR THE SECOND HALF OF THE WEEK. SMALL CRAFT  
ADVISORIES WILL LIKELY BE NEEDED MONDAY NIGHT THROUGH WEDNESDAY  
NIGHT.  
 

 
 
ANZ535-202000-  
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-  
1032 AM EDT SUN AUG 20 2017  
   
REST OF TODAY
 
NW WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT
 
SE WINDS AROUND 5 KT. WAVES 1 FT.    
MON
 
S WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
MON NIGHT
 
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
TUE
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
WED
 
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
THU
 
N WINDS 5 KT. WAVES LESS THAN 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ536-202000-  
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-  
1032 AM EDT SUN AUG 20 2017  
   
REST OF TODAY
 
N WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT
 
S WINDS AROUND 5 KT. WAVES 1 FT.    
MON
 
S WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
MON NIGHT
 
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
TUE
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
WED
 
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF TSTMS. A  
CHANCE OF SHOWERS.    
THU
 
N WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS IN  
THE MORNING.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ537-202000-  
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-  
1032 AM EDT SUN AUG 20 2017  
   
REST OF TODAY
 
NE WINDS 5 TO 10 KT. WAVES 1 FT.    
TONIGHT
 
SE WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
MON NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.    
TUE
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
WED
 
N WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF TSTMS. A  
CHANCE OF SHOWERS.    
THU
 
N WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ530-202000-  
CHESAPEAKE BAY NORTH OF POOLES ISLAND-  
1032 AM EDT SUN AUG 20 2017  
   
REST OF TODAY
 
NW WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT
 
SW WINDS AROUND 5 KT. WAVES FLAT.    
MON
 
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS.    
MON NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
TUE
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
WED
 
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
THU
 
N WINDS 5 KT. WAVES LESS THAN 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ531-202000-  
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-  
1032 AM EDT SUN AUG 20 2017  
   
REST OF TODAY
 
N WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT
 
SE WINDS AROUND 5 KT. WAVES FLAT.    
MON
 
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS.    
MON NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
TUE
 
S WINDS 10 TO 15 KT. WAVES 1 FT.    
TUE NIGHT
 
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF  
SHOWERS AND TSTMS.    
WED
 
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
THU
 
N WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ538-202000-  
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-  
1032 AM EDT SUN AUG 20 2017  
   
REST OF TODAY
 
N WINDS 5 KT. WAVES FLAT.    
TONIGHT
 
SE WINDS AROUND 5 KT. WAVES FLAT.    
MON
 
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS.    
MON NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
TUE
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
WED
 
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
THU
 
N WINDS 5 KT. WAVES LESS THAN 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ539-202000-  
CHESTER RIVER TO QUEENSTOWN MD-  
1032 AM EDT SUN AUG 20 2017  
   
REST OF TODAY
 
N WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT
 
SE WINDS 5 KT. WAVES FLAT.    
MON
 
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS.    
MON NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
TUE
 
S WINDS 10 TO 15 KT. WAVES 1 FT.    
TUE NIGHT
 
SW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
WED
 
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
THU
 
N WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ532-202000-  
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-  
1032 AM EDT SUN AUG 20 2017  
   
REST OF TODAY
 
NE WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT
 
SE WINDS 5 KT. WAVES FLAT.    
MON
 
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS.    
MON NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
TUE
 
S WINDS 10 TO 15 KT. WAVES 1 FT.    
TUE NIGHT
 
SW WINDS 10 TO 15 KT. WAVES 2 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
WED
 
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
THU
 
N WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ540-202000-  
EASTERN BAY-  
1032 AM EDT SUN AUG 20 2017  
   
REST OF TODAY
 
NE WINDS 5 TO 10 KT. WAVES 1 FT.    
TONIGHT
 
SE WINDS 5 KT. WAVES FLAT.    
MON
 
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS  
AND TSTMS.    
MON NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
TUE
 
S WINDS 10 TO 15 KT. WAVES 1 FT.    
TUE NIGHT
 
SW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
WED
 
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
THU
 
N WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ533-202000-  
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-  
1032 AM EDT SUN AUG 20 2017  
   
REST OF TODAY
 
NE WINDS 5 TO 10 KT. WAVES 1 FT.    
TONIGHT
 
SE WINDS 5 KT. WAVES FLAT.    
MON
 
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
MON NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF  
SHOWERS AND TSTMS.    
TUE
 
S WINDS 10 TO 15 KT. WAVES 1 FT.    
TUE NIGHT
 
SW WINDS 10 TO 15 KT. WAVES 2 FT.    
WED
 
N WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF TSTMS. A  
CHANCE OF SHOWERS.    
THU
 
N WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN  
THE MORNING.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ541-202000-  
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-  
1032 AM EDT SUN AUG 20 2017  
   
REST OF TODAY
 
NE WINDS 5 TO 10 KT. WAVES 1 FT.    
TONIGHT
 
SE WINDS AROUND 5 KT. WAVES FLAT.    
MON
 
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
MON NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
TUE
 
S WINDS 10 TO 15 KT. WAVES 1 FT.    
TUE NIGHT
 
SW WINDS 10 TO 15 KT. WAVES 2 FT.    
WED
 
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF TSTMS. A CHANCE  
OF SHOWERS.    
THU
 
N 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.  
 

 
 
ANZ542-202000-  
PATUXENT RIVER TO BROOMES ISLAND MD-  
1032 AM EDT SUN AUG 20 2017  
   
REST OF TODAY
 
NE WINDS 5 KT. WAVES LESS THAN 1 FT.    
TONIGHT
 
SE WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
MON NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
TUE NIGHT
 
SW WINDS 10 KT. WAVES 1 FT.    
WED
 
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF TSTMS. A CHANCE  
OF SHOWERS.    
THU
 
N WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS IN  
THE MORNING.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ534-202000-  
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-  
1032 AM EDT SUN AUG 20 2017  
   
REST OF TODAY
 
N WINDS 5 TO 10 KT. WAVES 1 FT.    
TONIGHT
 
SE WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
MON NIGHT
 
S WINDS 10 TO 15 KT. WAVES 2 FT.    
TUE
 
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
TUE NIGHT
 
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO 3 FT.    
WED...W WINDS 10 TO 15 KT
 
BECOMING N 5 TO 10 KT. WAVES 2 TO  
3 FT...SUBSIDING TO 1 FT. A CHANCE OF TSTMS. A CHANCE OF SHOWERS.    
THU...N WINDS 5 TO 10 KT. WAVES 2 TO 3 FT
 
SUBSIDING TO 1 TO 2 FT.  
A CHANCE OF SHOWERS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ543-202000-  
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-  
1032 AM EDT SUN AUG 20 2017  
   
REST OF TODAY
 
N WINDS 5 TO 10 KT. WAVES 1 FT.    
TONIGHT
 
SE WINDS 5 KT. WAVES LESS THAN 1 FT.    
MON
 
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
MON NIGHT
 
S WINDS 10 KT. WAVES 1 FT.    
TUE
 
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.    
TUE NIGHT
 
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
WED...W WINDS 10 TO 15 KT
 
BECOMING N 5 TO 10 KT. WAVES 1 TO 2 FT.  
A CHANCE OF TSTMS. A CHANCE OF SHOWERS.    
THU
 
NE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
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