530  
FZUS54 KLCH 230800  
CWFLCH  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE LAKE CHARLES LA  
300 AM CDT SAT OCT 23 2021  
 
COASTAL WATERS FROM THE LOWER ATCHAFALAYA RIVER LA TO HIGH  
ISLAND TX OUT 60 NAUTICAL MILES INCLUDING SABINE AND  
CALCASIEU LAKES AND VERMILION BAY  
 
SEAS ARE PROVIDED AS A RANGE OF THE AVERAGE HEIGHT OF THE  
HIGHEST ONE THIRD OF THE WAVES...ALONG WITH THE OCCASIONAL  
HEIGHT OF THE AVERAGE HIGHEST TEN PERCENT OF THE WAVES.  
 
GMZ400-232015-  
SYNOPSIS FOR LOWER ATCHAFALAYA RIVER LA TO HIGH ISLAND TX OUT  
60 NM INCLUDING SABINE AND CALCASIEU LAKES AND VERMILION BAY  
300 AM CDT SAT OCT 23 2021  
   
SYNOPSIS
 
 
ONSHORE FLOW WILL CONTINUE THROUGH EARLY NEXT WEEK. WINDS AND SEAS  
WILL INCREASE BY WEDNESDAY AS A STRONG SURFACE AND UPPER LEVEL LOW  
MOVES NORTH OF THE REGION, BRINGING AND INCREASED CHANCE OF  
SHOWERS AND THUNDERSTORMS. ONCE THE STORM SYSTEM EXITS THE REGION,  
A STRONG COLD FRONT WILL BRING MODERATE OFFSHORE FLOW BY WEDNESDAY  
NIGHT.  
 

 
 
GMZ430-232015-  
SABINE LAKE-  
300 AM CDT SAT OCT 23 2021  
   
TODAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. LAKE WATERS A LIGHT CHOP.  
PATCHY FOG IN THE MORNING. SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON.    
TONIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. LAKE WATERS A LIGHT  
CHOP. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING.    
SUNDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. LAKE WATERS A LIGHT  
CHOP. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.    
SUNDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS. LAKE WATERS A LIGHT  
CHOP.    
MONDAY
 
SOUTHWEST WINDS AROUND 5 KNOTS. LAKE WATERS SMOOTH.    
MONDAY NIGHT
 
SOUTH WINDS AROUND 5 KNOTS. LAKE WATERS SMOOTH.    
TUESDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. LAKE WATERS A LIGHT  
CHOP. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON.    
TUESDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS. LAKE WATERS A LIGHT  
CHOP. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE  
EVENING, THEN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS AFTER  
MIDNIGHT.    
WEDNESDAY
 
SOUTHWEST WINDS 10 TO 15 KNOTS. LAKE WATERS CHOPPY.  
SHOWERS AND THUNDERSTORMS LIKELY IN THE MORNING, THEN CHANCE OF  
SHOWERS IN THE AFTERNOON.    
WEDNESDAY NIGHT
 
WEST WINDS 5 TO 10 KNOTS. LAKE WATERS A LIGHT  
CHOP. SLIGHT CHANCE OF SHOWERS IN THE EVENING.  
 

 
 
GMZ432-232015-  
CALCASIEU LAKE-  
300 AM CDT SAT OCT 23 2021  
   
TODAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. LAKE WATERS A LIGHT CHOP.  
PATCHY FOG IN THE MORNING. SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON.    
TONIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. LAKE WATERS A LIGHT  
CHOP. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING.    
SUNDAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS. LAKE WATERS CHOPPY.  
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.    
SUNDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS. LAKE WATERS A LIGHT  
CHOP.    
MONDAY
 
SOUTHWEST WINDS AROUND 5 KNOTS. LAKE WATERS SMOOTH.    
MONDAY NIGHT
 
SOUTH WINDS AROUND 5 KNOTS. LAKE WATERS SMOOTH.    
TUESDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. LAKE WATERS A LIGHT  
CHOP. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON.    
TUESDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS. LAKE WATERS A LIGHT  
CHOP. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE  
EVENING, THEN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS AFTER  
MIDNIGHT.    
WEDNESDAY
 
SOUTHWEST WINDS 10 TO 15 KNOTS. LAKE WATERS CHOPPY.  
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN THE MORNING, THEN  
CHANCE OF SHOWERS IN THE AFTERNOON.    
WEDNESDAY NIGHT
 
WEST WINDS 5 TO 10 KNOTS. LAKE WATERS A LIGHT  
CHOP. SLIGHT CHANCE OF SHOWERS IN THE EVENING.  
 

 
 
GMZ435-232015-  
VERMILION BAY-  
300 AM CDT SAT OCT 23 2021  
   
TODAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS A LIGHT CHOP.  
PATCHY FOG IN THE MORNING.    
TONIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS A LIGHT  
CHOP.    
SUNDAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS. BAY WATERS CHOPPY.  
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.    
SUNDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS. BAY WATERS A LIGHT  
CHOP.    
MONDAY
 
SOUTHWEST WINDS AROUND 5 KNOTS. BAY WATERS SMOOTH.  
SLIGHT CHANCE OF SHOWERS.    
MONDAY NIGHT
 
SOUTH WINDS AROUND 5 KNOTS. BAY WATERS SMOOTH.    
TUESDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS A LIGHT  
CHOP. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON.    
TUESDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS A  
LIGHT CHOP. SLIGHT CHANCE OF SHOWERS IN THE EVENING, THEN CHANCE  
OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.    
WEDNESDAY
 
SOUTHWEST WINDS 10 TO 15 KNOTS. BAY WATERS CHOPPY.  
SHOWERS IN THE MORNING. CHANCE OF THUNDERSTORMS THROUGH THE DAY.  
SHOWERS LIKELY IN THE AFTERNOON.    
WEDNESDAY NIGHT
 
WEST WINDS 10 TO 15 KNOTS. BAY WATERS CHOPPY.  
CHANCE OF SHOWERS IN THE EVENING, THEN SLIGHT CHANCE OF SHOWERS  
AFTER MIDNIGHT.  
 

 
 
GMZ450-232015-  
COASTAL WATERS FROM CAMERON LA TO HIGH ISLAND TX OUT 20 NM-  
300 AM CDT SAT OCT 23 2021  
   
TODAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 TO 2 FEET. SLIGHT  
CHANCE OF SHOWERS IN THE MORNING, THEN CHANCE OF SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.    
TONIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. SLIGHT CHANCE OF  
SHOWERS THROUGH THE NIGHT.    
SUNDAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.  
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.    
SUNDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 1 TO 3 FEET.    
MONDAY
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 1 TO 3 FEET.    
MONDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 1 TO 2 FEET.    
TUESDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 TO 3 FEET.  
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON.    
TUESDAY NIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.  
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE  
EVENING, THEN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS AFTER  
MIDNIGHT.    
WEDNESDAY
 
SOUTHWEST WINDS 15 TO 20 KNOTS. SEAS 3 TO 5 FEET.  
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN THE MORNING, THEN  
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON.    
WEDNESDAY NIGHT
 
WEST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.  
SLIGHT CHANCE OF SHOWERS IN THE EVENING.  
 

 
 
GMZ452-232015-  
COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM-  
300 AM CDT SAT OCT 23 2021  
   
TODAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 1 TO 2 FEET. SLIGHT  
CHANCE OF SHOWERS THROUGH THE DAY. SLIGHT CHANCE OF THUNDERSTORMS  
IN THE AFTERNOON.    
TONIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.    
SUNDAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.  
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.    
SUNDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 1 TO 3 FEET.    
MONDAY
 
SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS 1 TO 3 FEET. SLIGHT  
CHANCE OF SHOWERS IN THE MORNING.    
MONDAY NIGHT
 
SOUTH WINDS AROUND 5 KNOTS. SEAS 1 TO 2 FEET.    
TUESDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 TO 2 FEET.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.    
TUESDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO  
4 FEET. SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. CHANCE OF  
SHOWERS THROUGH THE NIGHT. CHANCE OF THUNDERSTORMS AFTER  
MIDNIGHT.    
WEDNESDAY
 
SOUTHWEST WINDS 15 TO 20 KNOTS. SEAS 3 TO 6 FEET  
WITH OCCASIONAL SEAS UP TO 7 FEET. SHOWERS AND CHANCE OF  
THUNDERSTORMS IN THE MORNING, THEN CHANCE OF SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.    
WEDNESDAY NIGHT
 
WEST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET.  
SLIGHT CHANCE OF SHOWERS IN THE EVENING.  
 

 
 
GMZ455-232015-  
COASTAL WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY  
LA OUT 20 NM-  
300 AM CDT SAT OCT 23 2021  
   
TODAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 1 FOOT OR LESS.  
AREAS OF DENSE FOG IN THE MORNING.    
TONIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 1 TO 3 FEET.    
SUNDAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 1 TO 3 FEET.  
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.    
SUNDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 1 FOOT OR LESS.  
SLIGHT CHANCE OF SHOWERS IN THE EVENING.    
MONDAY
 
SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS 1 FOOT OR LESS.  
SLIGHT CHANCE OF SHOWERS THROUGH THE DAY.    
MONDAY NIGHT
 
SOUTHWEST WINDS UP TO 5 KNOTS. SEAS 1 FOOT OR  
LESS.    
TUESDAY
 
EAST WINDS 5 TO 10 KNOTS. SEAS 1 FOOT OR LESS. SLIGHT  
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.    
TUESDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 1 TO  
3 FEET. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
EVENING, THEN CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.   
WEDNESDAY
 
SOUTHWEST WINDS 15 TO 20 KNOTS. SEAS 2 TO 4 FEET.  
SHOWERS IN THE MORNING. CHANCE OF THUNDERSTORMS THROUGH THE DAY.  
SHOWERS LIKELY IN THE AFTERNOON.    
WEDNESDAY NIGHT
 
WEST WINDS 15 TO 20 KNOTS. SEAS 2 TO 4 FEET.  
CHANCE OF SHOWERS IN THE EVENING, THEN SLIGHT CHANCE OF SHOWERS  
AFTER MIDNIGHT.  
 

 
 
GMZ470-232015-  
WATERS FROM CAMERON LA TO HIGH ISLAND TX FROM 20 TO 60 NM-  
300 AM CDT SAT OCT 23 2021  
   
TODAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET. SLIGHT  
CHANCE OF SHOWERS IN THE MORNING, THEN CHANCE OF SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.    
TONIGHT
 
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 3 TO 5 FEET.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING. CHANCE  
OF SHOWERS AFTER MIDNIGHT.    
SUNDAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 6 FEET.  
CHANCE OF SHOWERS IN THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS  
THROUGH THE DAY. SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.    
SUNDAY NIGHT
 
SOUTH WINDS AROUND 10 KNOTS. SEAS 3 TO 5 FEET.    
MONDAY
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 2 TO 4 FEET.    
MONDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 1 TO 3 FEET.    
TUESDAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.  
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON.    
TUESDAY NIGHT
 
SOUTH WINDS 15 TO 20 KNOTS. SEAS 3 TO 5 FEET.  
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE  
EVENING, THEN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS AFTER  
MIDNIGHT.    
WEDNESDAY
 
SOUTHWEST WINDS 15 TO 20 KNOTS. SEAS 3 TO 6 FEET  
WITH OCCASIONAL SEAS UP TO 7 FEET. SHOWERS LIKELY AND CHANCE OF  
THUNDERSTORMS IN THE MORNING, THEN CHANCE OF SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.    
WEDNESDAY NIGHT
 
NORTHWEST WINDS AROUND 15 KNOTS. SEAS 3 TO  
6 FEET WITH OCCASIONAL SEAS UP TO 7 FEET. SLIGHT CHANCE OF  
SHOWERS IN THE EVENING.  
 

 
 
GMZ472-232015-  
WATERS FROM INTRACOASTAL CITY TO CAMERON LA FROM 20 TO 60 NM-  
300 AM CDT SAT OCT 23 2021  
   
TODAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET. SLIGHT  
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.    
TONIGHT
 
SOUTHEAST WINDS AROUND 15 KNOTS. SEAS 3 TO 5 FEET.  
SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.    
SUNDAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 6 FEET.  
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.    
SUNDAY NIGHT
 
SOUTH WINDS AROUND 10 KNOTS. SEAS 3 TO 5 FEET.  
SLIGHT CHANCE OF SHOWERS IN THE EVENING.    
MONDAY
 
SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS 2 TO 4 FEET. SLIGHT  
CHANCE OF SHOWERS IN THE MORNING.    
MONDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS. SEAS 1 TO 3 FEET.    
TUESDAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.    
TUESDAY NIGHT
 
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 2 TO  
4 FEET. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN  
THE EVENING, THEN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS  
AFTER MIDNIGHT.    
WEDNESDAY
 
SOUTHWEST WINDS 15 TO 20 KNOTS. SEAS 4 TO 7 FEET  
WITH OCCASIONAL SEAS UP TO 8 FEET. SHOWERS AND CHANCE OF  
THUNDERSTORMS IN THE MORNING, THEN SHOWERS LIKELY AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.    
WEDNESDAY NIGHT
 
NORTHWEST WINDS 15 TO 20 KNOTS. SEAS 4 TO  
7 FEET WITH OCCASIONAL SEAS UP TO 8 FEET. SLIGHT CHANCE OF  
SHOWERS THROUGH THE NIGHT.  
 

 
 
GMZ475-232015-  
WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY LA FROM  
20 TO 60 NM-  
300 AM CDT SAT OCT 23 2021  
   
TODAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 1 TO 3 FEET.    
TONIGHT
 
SOUTHEAST WINDS AROUND 15 KNOTS. SEAS 3 TO 5 FEET.    
SUNDAY
 
SOUTHEAST WINDS AROUND 15 KNOTS. SEAS 3 TO 5 FEET.  
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.    
SUNDAY NIGHT
 
SOUTH WINDS AROUND 10 KNOTS. SEAS 2 TO 4 FEET.  
SLIGHT CHANCE OF RAIN SHOWERS THROUGH THE NIGHT.    
MONDAY
 
SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS 2 TO 4 FEET. SLIGHT  
CHANCE OF SHOWERS IN THE MORNING.    
MONDAY NIGHT
 
SOUTH WINDS AROUND 5 KNOTS. SEAS 1 TO 3 FEET.    
TUESDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 4 FEET.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.    
TUESDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO  
4 FEET. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.    
WEDNESDAY
 
SOUTHWEST WINDS 15 TO 20 KNOTS. SEAS 4 TO 7 FEET  
WITH OCCASIONAL SEAS UP TO 8 FEET. SHOWERS AND CHANCE OF  
THUNDERSTORMS.    
WEDNESDAY NIGHT
 
WEST WINDS 15 TO 20 KNOTS. SEAS 4 TO 7 FEET  
WITH OCCASIONAL SEAS UP TO 8 FEET. CHANCE OF SHOWERS IN THE  
EVENING, THEN SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.  
 

 
 
08  
 
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