097  
FZUS51 KLWX 140001  
CWFLWX  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
800 PM EDT WED MAY 13 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.  
 
ANZ500-140800-  
800 PM EDT WED MAY 13 2026  
 
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...  
 
A COLD FRONT WILL CROSS THE WATERS TONIGHT. THE ASSOCIATED LOW WILL  
LINGER OVER NEW ENGLAND THURSDAY BEFORE HIGH PRESSURE BUILDS IN FROM  
THE WEST FRIDAY. THE HIGH WILL THEN SLIDE OFF THE COAST AND REMAIN  
THERE THROUGH THE WEEKEND. SMALL CRAFT ADVISORIES MAY BE NEEDED AT  
TIMES THURSDAY THROUGH FRIDAY.  
 

 
 
ANZ535-140800-  
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-  
800 PM EDT WED MAY 13 2026  
   
TONIGHT...S WINDS 5 KT
 
BECOMING NW LATE. WAVES 1 FT. SHOWERS WITH  
A CHANCE OF TSTMS EARLY THIS EVENING, THEN A CHANCE OF SHOWERS AFTER  
MIDNIGHT.    
THU
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
THU NIGHT
 
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
FRI
 
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
FRI NIGHT
 
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT NIGHT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN
 
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON
 
SE WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ536-140800-  
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-  
800 PM EDT WED MAY 13 2026  
   
TONIGHT...S WINDS 5 TO 10 KT
 
BECOMING NW LATE. WAVES 1 FT.  
SHOWERS WITH A SLIGHT CHANCE OF TSTMS EARLY THIS EVENING, THEN A  
SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.    
THU
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
THU NIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
FRI
 
NW WINDS 10 TO 15 KT. WAVES 1 FT.    
FRI NIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT NIGHT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON
 
SE WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ537-140800-  
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-  
800 PM EDT WED MAY 13 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
 
 
   
TONIGHT...SE WINDS 15 KT WITH GUSTS TO 25 KT
 
BECOMING SW 5 KT  
AFTER MIDNIGHT, THEN BECOMING NW LATE. WAVES 2 TO 3 FT...SUBSIDING  
TO 1 FT AFTER MIDNIGHT. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF  
TSTMS EARLY THIS EVENING, THEN SHOWERS AFTER MIDNIGHT.    
THU
 
NW WINDS 10 TO 15 KT. WAVES 2 FT.    
THU NIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
FRI
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
FRI NIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT NIGHT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN...SW WINDS 5 TO 10 KT
 
BECOMING SE. WAVES 1 FT OR LESS.    
MON
 
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ530-140800-  
CHESAPEAKE BAY NORTH OF POOLES ISLAND-  
800 PM EDT WED MAY 13 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
 
 
   
TONIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
 
BECOMING W  
LATE. WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE OF TSTMS EARLY THIS  
EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.    
THU
 
NW WINDS 10 TO 15 KT. WAVES 1 FT.    
THU NIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
FRI
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
FRI NIGHT
 
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT NIGHT
 
SW WINDS 5 KT. WAVES LESS THAN 1 FT.    
SUN
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON
 
SE WINDS AROUND 5 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ531-140800-  
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-  
800 PM EDT WED MAY 13 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
 
 
   
TONIGHT...S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
 
DIMINISHING TO  
10 KT AFTER MIDNIGHT, THEN BECOMING NW LATE. WAVES 2 TO 3 FT...  
SUBSIDING TO 1 FT AFTER MIDNIGHT. SHOWERS WITH A CHANCE OF TSTMS  
EARLY THIS EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.    
THU
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
THU NIGHT
 
NW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
FRI
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
FRI NIGHT
 
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
SAT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT NIGHT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN
 
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON
 
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ538-140800-  
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-  
800 PM EDT WED MAY 13 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
 
 
   
TONIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
 
BECOMING SW  
5 KT AFTER MIDNIGHT, THEN BECOMING NW LATE. WAVES 1 FT. SHOWERS WITH  
A CHANCE OF TSTMS EARLY THIS EVENING, THEN A CHANCE OF SHOWERS AFTER  
MIDNIGHT.    
THU
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
THU NIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
FRI
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
FRI NIGHT
 
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT
 
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
SAT NIGHT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.   
SUN
 
SW WINDS AROUND 5 KT. WAVES FLAT.    
MON
 
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ539-140800-  
CHESTER RIVER TO QUEENSTOWN MD-  
800 PM EDT WED MAY 13 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
 
 
   
TONIGHT...S WINDS 10 TO 15 KT
 
BECOMING W LATE. GUSTS UP TO 20 KT.  
WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE OF TSTMS EARLY THIS EVENING,  
THEN SHOWERS AFTER MIDNIGHT.    
THU
 
NW WINDS 10 TO 15 KT. WAVES 2 FT.    
THU NIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
FRI
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
FRI NIGHT
 
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN
 
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON
 
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ532-140800-  
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-  
800 PM EDT WED MAY 13 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
 
 
   
TONIGHT...S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
 
DIMINISHING TO  
10 KT AFTER MIDNIGHT, THEN BECOMING NW LATE. WAVES 2 TO 3 FT...  
SUBSIDING TO 1 FT LATE. SHOWERS WITH A SLIGHT CHANCE OF TSTMS EARLY  
THIS EVENING, THEN SHOWERS AFTER MIDNIGHT.    
THU
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
THU NIGHT
 
NW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
FRI
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
FRI NIGHT
 
W WINDS 5 KT. WAVES LESS THAN 1 FT.    
SAT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON...SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS
 
BUILDING TO 1 TO  
2 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ540-140800-  
EASTERN BAY-  
800 PM EDT WED MAY 13 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
 
 
   
TONIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
 
BECOMING W  
LATE. WAVES 1 TO 2 FT. SHOWERS WITH A SLIGHT CHANCE OF TSTMS EARLY  
THIS EVENING, THEN SHOWERS AFTER MIDNIGHT.    
THU
 
NW WINDS 10 TO 15 KT. WAVES 1 FT.    
THU NIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO  
2 FT.    
FRI
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.    
FRI NIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT
 
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
SAT NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON
 
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ533-140800-  
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-  
800 PM EDT WED MAY 13 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
 
 
   
TONIGHT...S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
 
BECOMING SW  
10 KT AFTER MIDNIGHT, THEN BECOMING NW LATE. WAVES 2 TO 3 FT...  
SUBSIDING TO 1 FT LATE. SHOWERS LIKELY WITH A SLIGHT CHANCE OF TSTMS  
EARLY THIS EVENING, THEN SHOWERS AFTER MIDNIGHT.    
THU
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
THU NIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
FRI...NW WINDS 15 TO 20 KT
 
DIMINISHING TO 5 TO 10 KT IN THE  
AFTERNOON. WAVES 2 FT.    
FRI NIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN
 
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON...SE WINDS 10 TO 15 KT
 
BECOMING S 5 TO 10 KT AFTER MIDNIGHT.  
WAVES 1 FT OR LESS...BUILDING TO 1 TO 2 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ541-140800-  
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-  
800 PM EDT WED MAY 13 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
 
 
   
TONIGHT...S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
 
BECOMING SW  
10 KT AFTER MIDNIGHT, THEN BECOMING NW LATE. WAVES 1 TO 2 FT.  
SHOWERS LIKELY WITH A SLIGHT CHANCE OF TSTMS EARLY THIS EVENING,  
THEN SHOWERS AFTER MIDNIGHT.    
THU
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
THU NIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
FRI
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
FRI NIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT NIGHT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN
 
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON
 
S WINDS 10 TO 15 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ542-140800-  
PATUXENT RIVER TO BROOMES ISLAND MD-  
800 PM EDT WED MAY 13 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
 
 
   
TONIGHT...S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT
 
BECOMING NW  
LATE. WAVES 1 FT. SHOWERS LIKELY WITH A SLIGHT CHANCE OF TSTMS EARLY  
THIS EVENING, THEN SHOWERS AFTER MIDNIGHT.    
THU
 
NW WINDS 5 TO 10 KT. WAVES 1 FT.    
THU NIGHT
 
NW WINDS 10 KT. WAVES 1 FT.    
FRI
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.    
FRI NIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
SAT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT NIGHT
 
SW WINDS 5 TO 10 KT. WAVES 1 FT.    
SUN
 
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.    
MON
 
SE WINDS 5 TO 10 KT. WAVES 1 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ534-140800-  
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-  
800 PM EDT WED MAY 13 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
 
 
   
TONIGHT...S WINDS 20 KT WITH GUSTS TO 25 KT
 
BECOMING SW AFTER  
MIDNIGHT, THEN BECOMING NW LATE. WAVES 4 FT... SUBSIDING TO 1 TO  
2 FT AFTER MIDNIGHT. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF  
TSTMS EARLY THIS EVENING, THEN SHOWERS AFTER MIDNIGHT.    
THU
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.    
THU NIGHT
 
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.    
FRI
 
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.    
FRI NIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT.    
SAT
 
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.    
SAT NIGHT
 
S WINDS 10 KT. WAVES 2 FT.    
SUN
 
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.    
MON...S WINDS AROUND 5 KT
 
INCREASING TO 10 TO 15 KT. WAVES 1 TO  
2 FT.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
ANZ543-140800-  
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-  
800 PM EDT WED MAY 13 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
 
 
   
TONIGHT...S WINDS 20 KT WITH GUSTS TO 25 KT
 
BECOMING SW AFTER  
MIDNIGHT, THEN BECOMING NW LATE. WAVES 1 TO 2 FT. A CHANCE OF  
SHOWERS WITH A SLIGHT CHANCE OF TSTMS EARLY THIS EVENING, THEN  
SHOWERS LIKELY AFTER MIDNIGHT.    
THU
 
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A  
CHANCE OF SHOWERS.    
THU NIGHT
 
NW WINDS 15 TO 20 KT. WAVES 2 FT.    
FRI
 
NW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.    
FRI NIGHT
 
SW WINDS AROUND 5 KT. WAVES 1 FT.    
SAT
 
S WINDS 5 TO 10 KT. WAVES 1 FT.    
SAT NIGHT
 
S WINDS 10 TO 15 KT. WAVES 1 FT.    
SUN
 
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.    
MON
 
S WINDS 10 TO 15 KT. WAVES 1 FT OR LESS.  
 
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.  
 

 
 
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