946  
FZUS52 KJAX 151745  
CWFJAX  
 
COASTAL WATERS FORECAST FOR NORTHEAST FLORIDA/SOUTHEAST GEORGIA  
NATIONAL WEATHER SERVICE JACKSONVILLE FL  
145 PM EDT MON SEP 15 2025  
 
ATLANTIC COASTAL WATERS FROM ALTAMAHA SOUND GA TO FLAGLER BEACH  
FL OUT TO 60 NM.  
 
SEAS ARE PROVIDED AS A RANGE OF THE AVERAGE HEIGHT OF THE HIGHEST  
1/3 OF THE WAVES, ALONG WITH THE OCCASIONAL HEIGHT OF THE AVERAGE  
HIGHEST 1/10 OF THE WAVES.  
 
AMZ400-160800-  
SYNOPSIS FOR ALTAMAHA SOUND GA TO FLAGLER BEACH FL OUT TO 60 NM-  
145 PM EDT MON SEP 15 2025  
   
SYNOPSIS
 
 
SMALL CRAFT EXERCISE CAUTION LEVEL SEAS OVER THE OFFSHORE WATERS  
WILL SLOWLY SUBSIDE TODAY AND TONIGHT AS NORTHEAST FLOW WEAKENS BUT  
REMAINS ONSHORE THROUGH THE END OF THE WEEK. THE NEXT SURGE OF  
STRONGER NORTHEAST WINDS IS EXPECTED LATE FRIDAY AND INTO THE  
UPCOMING WEEKEND WITH ANOTHER ROUND OF SMALL CRAFT ADVISORIES  
EXPECTED.  
 
   
GULF STREAM
 
 
THE APPROXIMATE LOCATION OF THE WEST WALL OF THE GULF STREAM AS OF  
SEP 13, 2025 AT 1200 UTC...  
 
43 NAUTICAL MILES EAST OF FLAGLER BEACH.  
54 NAUTICAL MILES EAST OF SAINT AUGUSTINE BEACH.  
72 NAUTICAL MILES EAST SOUTHEAST OF JACKSONVILLE BEACH.  
90 NAUTICAL MILES EAST SOUTHEAST OF ST SIMONS ISLAND.  
 
THIS DATA COURTESY OF THE NAVAL OCEANOGRAPHIC OFFICE.  
 

 
 
AMZ450-452-454-160800-  
COASTAL WATERS FROM ALTAMAHA SOUND TO FERNANDINA BEACH FL OUT  
20 NM-  
COASTAL WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL OUT  
20 NM-  
COASTAL WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL OUT 20 NM-  
145 PM EDT MON SEP 15 2025  
   
REST OF TODAY
 
NORTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO  
5 FEET, OCCASIONALLY TO 6 FEET. WAVE DETAIL: NORTHEAST 5 FEET AT  
10 SECONDS. INTRACOASTAL WATERS A MODERATE CHOP.    
TONIGHT
 
NORTHEAST WINDS 10 TO 15 KNOTS, DIMINISHING TO 5 TO  
10 KNOTS AFTER MIDNIGHT. SEAS 3 TO 5 FEET, OCCASIONALLY TO  
6 FEET. WAVE DETAIL: NORTHEAST 5 FEET AT 10 SECONDS. INTRACOASTAL  
WATERS A MODERATE CHOP.    
TUESDAY
 
NORTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET,  
OCCASIONALLY TO 5 FEET. WAVE DETAIL: NORTHEAST 4 FEET AT  
9 SECONDS. INTRACOASTAL WATERS A MODERATE CHOP.    
TUESDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING SOUTH  
AFTER MIDNIGHT. SEAS 3 TO 4 FEET, OCCASIONALLY TO 5 FEET. WAVE  
DETAIL: NORTHEAST 4 FEET AT 9 SECONDS. INTRACOASTAL WATERS LIGHT  
CHOP.    
WEDNESDAY AND WEDNESDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS.  
SEAS 2 TO 3 FEET. WAVE DETAIL: NORTHEAST 3 FEET AT 9 SECONDS AND  
SOUTHEAST 2 FEET AT 5 SECONDS. INTRACOASTAL WATERS LIGHT CHOP.    
THURSDAY THROUGH FRIDAY
 
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS  
2 TO 4 FEET, OCCASIONALLY TO 5 FEET. WAVE DETAIL: EAST 3 FEET AT  
5 SECONDS AND EAST 3 FEET AT 8 SECONDS. INTRACOASTAL WATERS  
CHOPPY. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.  
 
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
AMZ470-472-474-160800-  
WATERS FROM ALTAMAHA SOUND GA TO FERNANDINA BEACH FL FROM 20 TO  
60 NM-  
WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL FROM 20 TO 60 NM-  
WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL FROM 20 TO 60 NM-  
145 PM EDT MON SEP 15 2025  
 
...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 8 PM EDT THIS  
EVENING...  
   
REST OF TODAY
 
NORTH WINDS 10 TO 15 KNOTS. SEAS 4 TO 6 FEET,  
OCCASIONALLY TO 8 FEET. WAVE DETAIL: NORTHEAST 5 FEET AT  
9 SECONDS. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE THIS  
MORNING.    
TONIGHT
 
NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 4 TO 6 FEET,  
OCCASIONALLY TO 8 FEET. WAVE DETAIL: NORTHEAST 5 FEET AT  
9 SECONDS AND SOUTHEAST 2 FEET AT 5 SECONDS.    
TUESDAY
 
NORTHEAST WINDS 10 TO 15 KNOTS. SEAS 4 TO 5 FEET,  
OCCASIONALLY TO 6 FEET. WAVE DETAIL: NORTHEAST 5 FEET AT  
9 SECONDS AND SOUTHEAST 2 FEET AT 5 SECONDS.    
TUESDAY NIGHT
 
EAST WINDS 5 TO 10 KNOTS, BECOMING SOUTHEAST  
AFTER MIDNIGHT. SEAS 3 TO 5 FEET, OCCASIONALLY TO 6 FEET. WAVE  
DETAIL: NORTHEAST 5 FEET AT 9 SECONDS.    
WEDNESDAY
 
NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 3 TO 4 FEET,  
OCCASIONALLY TO 5 FEET. WAVE DETAIL: NORTHEAST 4 FEET AT  
9 SECONDS.    
WEDNESDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO  
3 FEET. WAVE DETAIL: NORTHEAST 3 FEET AT 9 SECONDS AND SOUTHEAST  
2 FEET AT 5 SECONDS. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER MIDNIGHT.    
THURSDAY THROUGH FRIDAY
 
NORTHEAST WINDS 10 TO 15 KNOTS. SEAS  
2 TO 4 FEET, OCCASIONALLY TO 5 FEET. A CHANCE OF SHOWERS AND  
THUNDERSTORMS.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
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