399  
FZUS52 KJAX 081753  
CWFJAX  
 
COASTAL WATERS FORECAST FOR NORTHEAST FLORIDA/SOUTHEAST GEORGIA  
NATIONAL WEATHER SERVICE JACKSONVILLE FL  
153 PM EDT TUE SEP 8 2026  
 
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.  
 
AMZ400-090900-  
SYNOPSIS FOR ALTAMAHA SOUND GA TO FLAGLER BEACH FL OUT TO 60 NM-  
153 PM EDT TUE SEP 8 2026  
   
SYNOPSIS
 
 
A COASTAL TROUGH DEVELOPING TODAY WILL PERSISTS THROUGH THIS EVENING  
INTO WEDNESDAY MORNING WITH WAVES OF GUSTY SHOWERS AND ISOLATED  
THUNDERSTORMS. ELEVATED WINDS AND SEAS WILL BRING EXERCISE CAUTION  
CONDITIONS TO THE WATERS NORTH OF ST AUGUSTINE THROUGH THIS LATE  
THIS EVENING. WINDS WILL BECOME EASTERLY WEDNESDAY MORNING AND  
GRADUALLY LESSEN AS THE TROUGH BEGINS TO WEAKEN BY LATE WEDNESDAY  
NIGHT AS HIGH PRESSURE BUILDS NORTHEAST OF THE REGION. THE HIGH WILL  
THEN EXTEND ACROSS THE FLORIDA PENINSULA THURSDAY WITH SOUTHERLY  
WINDS AND A RETURN OF SOUTHWEST WINDS FRIDAY INTO THE WEEKEND WITH  
THE AFTERNOON EAST COAST SEA BREEZE.  
 
   
GULF STREAM
 
 
THE APPROXIMATE LOCATION OF THE WEST WALL OF THE GULF STREAM AS OF  
SEP 08, 2026 AT 0000 UTC...  
 
54 NAUTICAL MILES EAST OF FLAGLER BEACH.  
58 NAUTICAL MILES EAST OF SAINT AUGUSTINE BEACH.  
70 NAUTICAL MILES EAST SOUTHEAST OF JACKSONVILLE BEACH.  
76 NAUTICAL MILES EAST SOUTHEAST OF ST SIMONS ISLAND.  
 
THIS DATA DERIVED FROM NCEP GLOBAL RTOFS MODEL.  
 

 
 
AMZ450-452-470-090900-  
COASTAL WATERS FROM ALTAMAHA SOUND TO FERNANDINA BEACH FL OUT  
20 NM-  
COASTAL WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL OUT  
20 NM-  
WATERS FROM ALTAMAHA SOUND GA TO FERNANDINA BEACH FL FROM 20 TO  
60 NM-  
153 PM EDT TUE SEP 8 2026  
   
..SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH LATE TONIGHT
 
 
   
REST OF TODAY
 
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 4 TO  
6 FEET, OCCASIONALLY TO 8 FEET. WAVE DETAIL: NORTHEAST 5 FEET AT  
6 SECONDS. INTRACOASTAL WATERS CHOPPY. A CHANCE OF SHOWERS. A  
CHANCE OF THUNDERSTORMS THIS AFTERNOON.    
TONIGHT
 
EAST WINDS 15 TO 20 KNOTS, DIMINISHING TO 10 TO  
15 KNOTS AFTER MIDNIGHT. SEAS 4 TO 6 FEET, OCCASIONALLY TO  
8 FEET. WAVE DETAIL: NORTHEAST 6 FEET AT 8 SECONDS. INTRACOASTAL  
WATERS CHOPPY. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF  
THUNDERSTORMS.    
WEDNESDAY
 
EAST WINDS 10 TO 15 KNOTS. SEAS 4 TO 5 FEET,  
OCCASIONALLY TO 6 FEET. WAVE DETAIL: EAST 5 FEET AT 8 SECONDS.  
INTRACOASTAL WATERS A MODERATE CHOP. A SLIGHT CHANCE OF  
THUNDERSTORMS. A CHANCE OF SHOWERS, MAINLY IN THE MORNING.    
WEDNESDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS, BECOMING SOUTH  
5 TO 10 KNOTS AFTER MIDNIGHT. SEAS 3 TO 5 FEET, OCCASIONALLY TO  
6 FEET. WAVE DETAIL: EAST 5 FEET AT 8 SECONDS. INTRACOASTAL  
WATERS A MODERATE CHOP. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS.    
THURSDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 3 TO 4 FEET,  
OCCASIONALLY TO 5 FEET. WAVE DETAIL: EAST 4 FEET AT 7 SECONDS.  
INTRACOASTAL WATERS LIGHT CHOP. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON.    
THURSDAY NIGHT
 
SOUTH WINDS AROUND 10 KNOTS, BECOMING SOUTHWEST  
AFTER MIDNIGHT. SEAS 2 TO 3 FEET. WAVE DETAIL: EAST 3 FEET AT  
7 SECONDS. INTRACOASTAL WATERS LIGHT CHOP. A CHANCE OF SHOWERS  
AND THUNDERSTORMS.    
FRIDAY
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.  
INTRACOASTAL WATERS LIGHT CHOP. A SLIGHT CHANCE OF THUNDERSTORMS  
IN THE MORNING. A CHANCE OF SHOWERS. A CHANCE OF THUNDERSTORMS.  
SHOWERS LIKELY AFTER MIDNIGHT.    
SATURDAY
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.  
INTRACOASTAL WATERS LIGHT CHOP. A CHANCE OF SHOWERS AND  
THUNDERSTORMS.  
 
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
AMZ472-090900-  
WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL FROM 20 TO 60 NM-  
153 PM EDT TUE SEP 8 2026  
   
..SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH LATE TONIGHT
 
 
   
REST OF TODAY
 
EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 5 FEET,  
OCCASIONALLY TO 6 FEET. WAVE DETAIL: NORTHEAST 5 FEET AT 7  
SECONDS. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE THIS  
MORNING, THEN A CHANCE OF SHOWERS AND THUNDERSTORMS THIS  
AFTERNOON.    
TONIGHT
 
EAST WINDS 10 TO 15 KNOTS. SEAS AROUND 5 FEET,  
OCCASIONALLY TO 6 FEET. WAVE DETAIL: NORTHEAST 5 FEET AT  
8 SECONDS. A CHANCE OF SHOWERS. A CHANCE OF THUNDERSTORMS, MAINLY  
IN THE EVENING.    
WEDNESDAY
 
SOUTHEAST WINDS AROUND 10 KNOTS. SEAS AROUND 5 FEET,  
OCCASIONALLY TO 6 FEET. WAVE DETAIL: NORTHEAST 5 FEET AT  
8 SECONDS. A SLIGHT CHANCE OF THUNDERSTORMS. A CHANCE OF SHOWERS,  
MAINLY IN THE MORNING.    
WEDNESDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 4 TO  
5 FEET, OCCASIONALLY TO 6 FEET. WAVE DETAIL: EAST 5 FEET AT  
8 SECONDS. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.    
THURSDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 3 TO 4 FEET,  
OCCASIONALLY TO 5 FEET. WAVE DETAIL: EAST 4 FEET AT 8 SECONDS. A  
SLIGHT CHANCE OF THUNDERSTORMS. A CHANCE OF SHOWERS, MAINLY IN  
THE MORNING.    
THURSDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS AROUND 3 FEET.  
WAVE DETAIL: EAST 3 FEET AT 7 SECONDS. A CHANCE OF SHOWERS AND  
THUNDERSTORMS.    
FRIDAY THROUGH SATURDAY
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 2 TO  
3 FEET. SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
AMZ454-090900-  
COASTAL WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL OUT 20 NM-  
153 PM EDT TUE SEP 8 2026  
   
REST OF TODAY
 
NORTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO  
4 FEET, OCCASIONALLY TO 5 FEET. WAVE DETAIL: NORTHEAST 4 FEET AT  
7 SECONDS. INTRACOASTAL WATERS A MODERATE CHOP. A CHANCE OF  
SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS LATE THIS MORNING, THEN  
A CHANCE OF THUNDERSTORMS THIS AFTERNOON.    
TONIGHT
 
EAST WINDS 10 TO 15 KNOTS. SEAS AROUND 4 FEET,  
OCCASIONALLY TO 5 FEET. WAVE DETAIL: NORTHEAST 4 FEET AT  
8 SECONDS. INTRACOASTAL WATERS A MODERATE CHOP. A CHANCE OF  
THUNDERSTORMS IN THE EVENING. A CHANCE OF SHOWERS.    
WEDNESDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING EAST 10 TO  
15 KNOTS IN THE AFTERNOON. SEAS AROUND 4 FEET, OCCASIONALLY TO  
5 FEET. WAVE DETAIL: NORTHEAST 4 FEET AT 8 SECONDS. INTRACOASTAL  
WATERS A MODERATE CHOP. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS.    
WEDNESDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 3 TO  
4 FEET, OCCASIONALLY TO 5 FEET. WAVE DETAIL: NORTHEAST 4 FEET AT  
8 SECONDS. INTRACOASTAL WATERS LIGHT CHOP.    
THURSDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND 3 FEET.  
WAVE DETAIL: NORTHEAST 3 FEET AT 8 SECONDS. INTRACOASTAL WATERS  
LIGHT CHOP. A SLIGHT CHANCE OF SHOWERS IN THE MORNING, THEN A  
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.    
THURSDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS, BECOMING SOUTHWEST  
AFTER MIDNIGHT. SEAS 2 TO 3 FEET. WAVE DETAIL: EAST 3 FEET AT  
8 SECONDS. INTRACOASTAL WATERS LIGHT CHOP. A SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS.    
FRIDAY
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.  
INTRACOASTAL WATERS LIGHT CHOP. A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE MORNING, THEN SHOWERS AND THUNDERSTORMS  
LIKELY IN THE AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS IN  
THE EVENING, THEN A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER MIDNIGHT.    
SATURDAY
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET.  
INTRACOASTAL WATERS LIGHT CHOP. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE MORNING, THEN SHOWERS LIKELY WITH A CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS THROUGH THE NIGHT.  
 
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
AMZ474-090900-  
WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL FROM 20 TO 60 NM-  
153 PM EDT TUE SEP 8 2026  
   
REST OF TODAY
 
EAST WINDS 10 TO 15 KNOTS. SEAS AROUND 4 FEET,  
OCCASIONALLY TO 5 FEET. WAVE DETAIL: NORTHEAST 4 FEET AT  
7 SECONDS. A CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS  
LATE THIS MORNING, THEN A CHANCE OF THUNDERSTORMS THIS AFTERNOON.   
TONIGHT
 
EAST WINDS 10 TO 15 KNOTS. SEAS 4 TO 5 FEET,  
OCCASIONALLY TO 6 FEET. WAVE DETAIL: NORTHEAST 5 FEET AT  
8 SECONDS. SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS IN THE  
EVENING, THEN A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT.    
WEDNESDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 4 TO 5 FEET,  
OCCASIONALLY TO 6 FEET. WAVE DETAIL: NORTHEAST 5 FEET AT  
8 SECONDS. A CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS  
IN THE MORNING, THEN A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.    
WEDNESDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 4 TO  
5 FEET, OCCASIONALLY TO 6 FEET. WAVE DETAIL: NORTHEAST 5 FEET AT  
8 SECONDS. A SLIGHT CHANCE OF THUNDERSTORMS. A SLIGHT CHANCE OF  
SHOWERS IN THE EVENING, THEN A CHANCE OF SHOWERS AFTER MIDNIGHT.    
THURSDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 3 TO 4 FEET,  
OCCASIONALLY TO 5 FEET. WAVE DETAIL: EAST 4 FEET AT 8 SECONDS. A  
CHANCE OF SHOWERS AND THUNDERSTORMS, MAINLY IN THE MORNING.    
THURSDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS AROUND 3 FEET.  
WAVE DETAIL: NORTHEAST 3 FEET AT 7 SECONDS AND EAST 2 FEET AT  
8 SECONDS. A CHANCE OF SHOWERS AND THUNDERSTORMS.    
FRIDAY
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET. A CHANCE  
OF THUNDERSTORMS.    
SATURDAY
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET. A CHANCE  
OF SHOWERS AND THUNDERSTORMS.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
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