498  
FZUS52 KJAX 181318  
CWFJAX  
 
COASTAL WATERS FORECAST FOR NORTHEAST FLORIDA/SOUTHEAST GEORGIA  
NATIONAL WEATHER SERVICE JACKSONVILLE FL  
918 AM EDT WED SEP 18 2019  
 
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.  
 
AMZ400-182130-  
SYNOPSIS FOR ALTAMAHA SOUND GA TO FLAGLER BEACH FL OUT TO 60 NM-  
918 AM EDT WED SEP 18 2019  
   
SYNOPSIS
 
 
A COLD FRONT WILL SLIDE SOUTHEAST OVER THE OFFSHORE AND COASTAL  
WATERS TODAY, BRINGING A RETURN OF STRONG NORTHEAST FLOW TO FUEL  
ANOTHER INCREASE IN WAVE HEIGHTS. ADVISORY CONDITIONS ARE  
EXPECTED TO CONTINUE THROUGH THE REMAINDER OF THE WEEK. SHOWERS  
AND ISOLATED THUNDERSTORMS WILL ALSO RETURN WITH TODAY'S COLD  
FRONT, MOSTLY DURING THE DAYTIME HOURS.  
   
GULF STREAM
 
 
THE APPROXIMATE LOCATION OF THE WEST WALL OF THE GULF STREAM AS OF  
SEP 17, 2019 AT 1200 UTC...  
 
67 NAUTICAL MILES EAST NORTHEAST OF FLAGLER BEACH.  
72 NAUTICAL MILES EAST OF SAINT AUGUSTINE BEACH.  
78 NAUTICAL MILES EAST OF JACKSONVILLE BEACH.  
91 NAUTICAL MILES EAST SOUTHEAST OF ST SIMONS ISLAND.  
 
THIS DATA COURTESY OF THE NAVAL OCEANOGRAPHIC OFFICE.  
 

 
 
AMZ450-182130-  
COASTAL WATERS FROM ALTAMAHA SOUND TO FERNANDINA BEACH FL OUT  
20 NM-  
918 AM EDT WED SEP 18 2019  
   
..SMALL CRAFT SHOULD EXERCISE CAUTION
 
 
   
REST OF TODAY
 
EAST NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 4 TO  
6 FEET WITH OCCASIONAL SEAS UP TO 8 FEET. DOMINANT PERIOD 11 SECONDS.  
INLAND WATERS A MODERATE CHOP. SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS.    
TONIGHT
 
EAST NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET  
WITH OCCASIONAL SEAS UP TO 8 FEET. DOMINANT PERIOD 12 SECONDS. INLAND  
WATERS CHOPPY.    
THURSDAY
 
NORTHEAST WINDS 20 TO 25 KNOTS WITH GUSTS TO AROUND  
35 KNOTS. SEAS 5 TO 7 FEET WITH OCCASIONAL SEAS UP TO 9 FEET.  
DOMINANT PERIOD 12 SECONDS. INLAND WATERS CHOPPY. A CHANCE OF SHOWERS.    
THURSDAY NIGHT
 
EAST NORTHEAST WINDS 20 TO 25 KNOTS WITH GUSTS  
TO AROUND 35 KNOTS. SEAS 6 TO 8 FEET WITH OCCASIONAL SEAS UP TO  
10 FEET. DOMINANT PERIOD 7 SECONDS INCREASING TO 13 SECONDS AFTER  
MIDNIGHT. INLAND WATERS CHOPPY. A CHANCE OF SHOWERS.    
FRIDAY
 
EAST NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET  
WITH OCCASIONAL SEAS UP TO 8 FEET. DOMINANT PERIOD 13 SECONDS. INLAND  
WATERS CHOPPY. A CHANCE OF SHOWERS.    
FRIDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET WITH  
OCCASIONAL SEAS UP TO 8 FEET. A SLIGHT CHANCE OF SHOWERS.    
SATURDAY AND SATURDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS. SEAS  
3 TO 5 FEET WITH OCCASIONAL SEAS UP TO 6 FEET.    
SUNDAY
 
EAST WINDS AROUND 10 KNOTS. SEAS 3 TO 5 FEET WITH  
OCCASIONAL SEAS UP TO 6 FEET.  
 

 
 
AMZ452-454-182130-  
COASTAL WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL OUT  
20 NM-  
COASTAL WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL OUT 20 NM-  
918 AM EDT WED SEP 18 2019  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING
 
 
   
REST OF TODAY
 
EAST NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 5 TO  
7 FEET WITH OCCASIONAL SEAS UP TO 9 FEET. DOMINANT PERIOD 11 SECONDS.  
INLAND WATERS A MODERATE CHOP. SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS.    
TONIGHT
 
EAST NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 6 TO 8 FEET  
WITH OCCASIONAL SEAS UP TO 10 FEET. DOMINANT PERIOD 12 SECONDS. INLAND  
WATERS CHOPPY. A CHANCE OF SHOWERS.    
THURSDAY
 
NORTHEAST WINDS 20 TO 25 KNOTS. SEAS 7 TO 10 FEET  
WITH OCCASIONAL SEAS UP TO 13 FEET. DOMINANT PERIOD 12 SECONDS. INLAND  
WATERS CHOPPY. A CHANCE OF SHOWERS.    
THURSDAY NIGHT
 
EAST NORTHEAST WINDS 20 TO 25 KNOTS. SEAS 7 TO  
10 FEET WITH OCCASIONAL SEAS UP TO 13 FEET. DOMINANT PERIOD 12 SECONDS.  
INLAND WATERS CHOPPY. A CHANCE OF SHOWERS.    
FRIDAY
 
EAST NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 6 TO 9 FEET  
WITH OCCASIONAL SEAS UP TO 11 FEET. DOMINANT PERIOD 12 SECONDS. INLAND  
WATERS CHOPPY. A CHANCE OF SHOWERS.    
FRIDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS. SEAS 6 TO 9 FEET WITH  
OCCASIONAL SEAS UP TO 11 FEET. A CHANCE OF SHOWERS.    
SATURDAY AND SATURDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS. SEAS  
6 TO 8 FEET WITH OCCASIONAL SEAS UP TO 10 FEET.    
SUNDAY
 
EAST WINDS 10 TO 15 KNOTS. SEAS 4 TO 6 FEET WITH  
OCCASIONAL SEAS UP TO 8 FEET.  
 

 
 
AMZ470-472-474-182130-  
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-  
918 AM EDT WED SEP 18 2019  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING
 
 
   
REST OF TODAY
 
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 7 TO  
10 FEET WITH OCCASIONAL SEAS UP TO 13 FEET. DOMINANT PERIOD 11 SECONDS.  
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.    
TONIGHT
 
NORTHEAST WINDS AROUND 20 KNOTS. SEAS 8 TO 11 FEET  
WITH OCCASIONAL SEAS UP TO 14 FEET. DOMINANT PERIOD 12 SECONDS. A SLIGHT  
CHANCE OF SHOWERS.    
THURSDAY
 
NORTHEAST WINDS 20 TO 25 KNOTS WITH GUSTS TO AROUND  
35 KNOTS. SEAS 9 TO 12 FEET WITH OCCASIONAL SEAS UP TO 15 FEET.  
DOMINANT PERIOD 12 SECONDS. A CHANCE OF SHOWERS.    
THURSDAY NIGHT
 
EAST NORTHEAST WINDS 20 TO 25 KNOTS WITH GUSTS  
TO AROUND 35 KNOTS. SEAS 10 TO 13 FEET WITH OCCASIONAL SEAS UP TO  
17 FEET SUBSIDING TO 8 TO 11 FEET WITH OCCASIONAL SEAS UP TO  
14 FEET AFTER MIDNIGHT. DOMINANT PERIOD 12 SECONDS. A CHANCE OF SHOWERS  
AND A SLIGHT CHANCE OF THUNDERSTORMS.    
FRIDAY
 
EAST NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 8 TO 11 FEET  
WITH OCCASIONAL SEAS UP TO 14 FEET. DOMINANT PERIOD 12 SECONDS. A CHANCE  
OF SHOWERS.    
FRIDAY NIGHT AND SATURDAY
 
EAST WINDS 15 TO 20 KNOTS. SEAS 8 TO  
11 FEET WITH OCCASIONAL SEAS UP TO 14 FEET. A SLIGHT CHANCE OF  
SHOWERS.    
SATURDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS. SEAS 6 TO 9 FEET  
WITH OCCASIONAL SEAS UP TO 11 FEET.    
SUNDAY
 
EAST WINDS 10 TO 15 KNOTS. SEAS 5 TO 7 FEET WITH  
OCCASIONAL SEAS UP TO 9 FEET.  
 

 
 
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