691
FZUS54 KLCH 170809
CWFLCH
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE LAKE CHARLES LA
308 AM CDT FRI JUL 17 2026
COASTAL WATERS FROM THE LOWER ATCHAFALAYA RIVER LA TO HIGH
ISLAND TX OUT 60 NAUTICAL MILES INCLUDING SABINE AND
CALCASIEU LAKES AND VERMILION AND COTE BLANCHE BAYS
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.
GMZ400-172100-
308 AM CDT FRI JUL 17 2026
.SYNOPSIS FOR LOWER ATCHAFALAYA RIVER LA TO HIGH ISLAND TX OUT
60 NM INCLUDING SABINE AND CALCASIEU LAKES AND VERMILION AND COTE
BLANCHE BAYS...
LIGHT SOUTHERLY FLOW AND LOW SEAS ARE EXPECTED TO CONTINUE
THROUGH THE FORECAST PERIOD WITH WEAK SURFACE HIGH PRESSURE CENTERED
OVER THE NORTHEASTERN GULF. MAINLY DRY CONDITIONS ARE EXPECTED TO
PREVAIL AS HIGH PRESSURE BUILDS OVERHEAD. WINDS AND SEAS WILL BE
LOCALLY HIGHER NEAR THUNDERSTORMS.
GMZ430-172100-
SABINE LAKE-
308 AM CDT FRI JUL 17 2026
TODAY
SOUTH WINDS AROUND 5 KNOTS, INCREASING TO 5 TO 10 KNOTS
THIS AFTERNOON. LAKE WATERS LIGHT CHOP.
TONIGHT
SOUTHWEST WINDS 5 TO 10 KNOTS. LAKE WATERS LIGHT CHOP.
SATURDAY
SOUTHWEST WINDS AROUND 5 KNOTS, INCREASING TO 5 TO
10 KNOTS IN THE AFTERNOON. LAKE WATERS LIGHT CHOP.
SATURDAY NIGHT
SOUTHWEST WINDS 5 TO 10 KNOTS. LAKE WATERS
LIGHT CHOP.
SUNDAY
WEST WINDS AROUND 5 KNOTS. LAKE WATERS SMOOTH.
SUNDAY NIGHT
SOUTHWEST WINDS 5 TO 10 KNOTS. LAKE WATERS LIGHT
CHOP.
MONDAY
WEST WINDS AROUND 5 KNOTS. LAKE WATERS SMOOTH.
MONDAY NIGHT
SOUTHWEST WINDS 5 TO 10 KNOTS. LAKE WATERS LIGHT
CHOP.
TUESDAY
WEST WINDS 5 TO 10 KNOTS. LAKE WATERS LIGHT CHOP.
TUESDAY NIGHT
SOUTHWEST WINDS 5 TO 10 KNOTS. LAKE WATERS LIGHT
CHOP.
GMZ432-172100-
CALCASIEU LAKE-
308 AM CDT FRI JUL 17 2026
TODAY
SOUTH WINDS AROUND 5 KNOTS, INCREASING TO AROUND
10 KNOTS LATE. LAKE WATERS LIGHT CHOP.
TONIGHT
SOUTHWEST WINDS 5 TO 10 KNOTS. LAKE WATERS LIGHT CHOP.
SATURDAY
SOUTHWEST WINDS 5 TO 10 KNOTS. LAKE WATERS LIGHT
CHOP.
SATURDAY NIGHT
SOUTHWEST WINDS 5 TO 10 KNOTS. LAKE WATERS
LIGHT CHOP.
SUNDAY
WEST WINDS 5 TO 10 KNOTS. LAKE WATERS LIGHT CHOP.
SUNDAY NIGHT
SOUTHWEST WINDS 5 TO 10 KNOTS. LAKE WATERS LIGHT
CHOP.
MONDAY
WEST WINDS 5 TO 10 KNOTS. LAKE WATERS LIGHT CHOP.
MONDAY NIGHT
SOUTHWEST WINDS 5 TO 10 KNOTS. LAKE WATERS LIGHT
CHOP.
TUESDAY
WEST WINDS 5 TO 10 KNOTS. LAKE WATERS LIGHT CHOP.
TUESDAY NIGHT
SOUTHWEST WINDS 5 TO 10 KNOTS. LAKE WATERS LIGHT
CHOP.
GMZ435-172100-
VERMILION AND WEST COTE BLANCHE BAYS-
308 AM CDT FRI JUL 17 2026
TODAY
SOUTHWEST WINDS AROUND 5 KNOTS, INCREASING TO 5 TO
10 KNOTS LATE. BAY WATERS LIGHT CHOP.
TONIGHT
WEST WINDS 5 TO 10 KNOTS. BAY WATERS LIGHT CHOP.
SATURDAY
WEST WINDS 5 TO 10 KNOTS. BAY WATERS LIGHT CHOP.
SATURDAY NIGHT
WEST WINDS 5 TO 10 KNOTS. BAY WATERS LIGHT
CHOP.
SUNDAY
NORTHWEST WINDS 5 TO 10 KNOTS. BAY WATERS LIGHT CHOP.
SUNDAY NIGHT
WEST WINDS 5 TO 10 KNOTS. BAY WATERS LIGHT CHOP.
MONDAY
WEST WINDS 5 TO 10 KNOTS. BAY WATERS LIGHT CHOP.
MONDAY NIGHT
WEST WINDS 5 TO 10 KNOTS. BAY WATERS LIGHT CHOP.
TUESDAY
WEST WINDS 5 TO 10 KNOTS. BAY WATERS LIGHT CHOP.
TUESDAY NIGHT
WEST WINDS 5 TO 10 KNOTS. BAY WATERS LIGHT CHOP.
A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
GMZ436-172100-
ATCHAFALAYA AND EAST COTE BLANCHE BAYS-
308 AM CDT FRI JUL 17 2026
TODAY
WEST WINDS AROUND 5 KNOTS, BECOMING SOUTHWEST LATE. BAY
WATERS LIGHT CHOP.
TONIGHT
WEST WINDS 5 TO 10 KNOTS. BAY WATERS LIGHT CHOP.
SATURDAY
NORTHWEST WINDS 5 TO 10 KNOTS. BAY WATERS LIGHT CHOP.
SATURDAY NIGHT
WEST WINDS 5 TO 10 KNOTS. BAY WATERS LIGHT
CHOP.
SUNDAY
NORTHWEST WINDS 5 TO 10 KNOTS. BAY WATERS LIGHT CHOP.
SUNDAY NIGHT
WEST WINDS 5 TO 10 KNOTS. BAY WATERS LIGHT CHOP.
MONDAY
NORTHWEST WINDS 5 TO 10 KNOTS. BAY WATERS LIGHT CHOP.
MONDAY NIGHT
WEST WINDS 5 TO 10 KNOTS. BAY WATERS LIGHT CHOP.
TUESDAY
WEST WINDS 5 TO 10 KNOTS. BAY WATERS LIGHT CHOP. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
TUESDAY NIGHT
WEST WINDS 5 TO 10 KNOTS. BAY WATERS LIGHT CHOP.
A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
GMZ450-172100-
COASTAL WATERS FROM CAMERON LA TO HIGH ISLAND TX OUT 20 NM-
308 AM CDT FRI JUL 17 2026
TODAY
SOUTH WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET. WAVE
DETAIL: SOUTH 2 FEET AT 5 SECONDS.
TONIGHT
SOUTH WINDS AROUND 10 KNOTS. SEAS AROUND 2 FEET. WAVE
DETAIL: SOUTH 2 FEET AT 5 SECONDS.
SATURDAY
SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET.
WAVE DETAIL: SOUTH 2 FEET AT 5 SECONDS.
SATURDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KNOTS. SEAS AROUND
2 FEET. WAVE DETAIL: SOUTH 2 FEET AT 4 SECONDS.
SUNDAY
WEST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET IN THE
MORNING, THEN 1 FOOT OR LESS. WAVE DETAIL: SOUTHWEST 2 FEET AT
4 SECONDS, BECOMING SOUTHWEST 1 FOOT AT 4 SECONDS.
SUNDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KNOTS. SEAS AROUND
2 FEET. WAVE DETAIL: SOUTHWEST 2 FEET AT 4 SECONDS.
MONDAY
WEST WINDS 10 TO 15 KNOTS, BECOMING SOUTHWEST 5 TO
10 KNOTS IN THE AFTERNOON. SEAS AROUND 2 FEET IN THE MORNING,
THEN 1 FOOT OR LESS.
MONDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KNOTS. SEAS AROUND
2 FEET.
TUESDAY
WEST WINDS 10 TO 15 KNOTS, BECOMING SOUTHWEST 5 TO
10 KNOTS IN THE AFTERNOON. SEAS AROUND 2 FEET.
TUESDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KNOTS. SEAS AROUND
2 FEET.
GMZ452-172100-
COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM-
308 AM CDT FRI JUL 17 2026
TODAY
SOUTH WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET. WAVE
DETAIL: SOUTH 2 FEET AT 4 SECONDS.
TONIGHT
SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET.
WAVE DETAIL: SOUTHWEST 1 FOOT AT 4 SECONDS.
SATURDAY
WEST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET. WAVE
DETAIL: SOUTH 1 FOOT AT 5 SECONDS.
SATURDAY NIGHT
WEST WINDS AROUND 10 KNOTS. SEAS AROUND 2 FEET.
WAVE DETAIL: SOUTHWEST 2 FEET AT 4 SECONDS.
SUNDAY
WEST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET. WAVE
DETAIL: SOUTHWEST 2 FEET AT 4 SECONDS.
SUNDAY NIGHT
WEST WINDS 10 TO 15 KNOTS. SEAS AROUND 2 FEET.
WAVE DETAIL: SOUTHWEST 2 FEET AT 4 SECONDS.
MONDAY
NORTHWEST WINDS 10 TO 15 KNOTS, BECOMING WEST 5 TO
10 KNOTS IN THE AFTERNOON. SEAS AROUND 2 FEET.
MONDAY NIGHT
WEST WINDS 10 TO 15 KNOTS. SEAS AROUND 2 FEET.
TUESDAY
NORTHWEST WINDS 10 TO 15 KNOTS, BECOMING WEST 5 TO
10 KNOTS IN THE AFTERNOON. SEAS AROUND 2 FEET.
TUESDAY NIGHT
WEST WINDS 10 TO 15 KNOTS. SEAS AROUND 2 FEET.
GMZ455-172100-
COASTAL WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY
LA OUT 20 NM-
308 AM CDT FRI JUL 17 2026
TODAY
SOUTHWEST WINDS AROUND 5 KNOTS EARLY THIS MORNING,
BECOMING LIGHT AND VARIABLE, THEN BECOMING SOUTHWEST AROUND
5 KNOTS THIS AFTERNOON. SEAS 1 FOOT OR LESS. WAVE DETAIL: SOUTH
1 FOOT AT 4 SECONDS.
TONIGHT
WEST WINDS 5 TO 10 KNOTS. SEAS 1 FOOT OR LESS. WAVE
DETAIL: SOUTHWEST 1 FOOT AT 3 SECONDS.
SATURDAY
NORTHWEST WINDS 5 TO 10 KNOTS. SEAS 1 FOOT OR LESS.
WAVE DETAIL: WEST 1 FOOT AT 3 SECONDS.
SATURDAY NIGHT
WEST WINDS AROUND 10 KNOTS. SEAS 1 FOOT OR
LESS, THEN AROUND 2 FEET AFTER MIDNIGHT. WAVE DETAIL: WEST 1 FOOT
AT 3 SECONDS, BECOMING WEST 2 FEET AT 3 SECONDS.
SUNDAY
NORTHWEST WINDS 5 TO 10 KNOTS. SEAS 1 TO 2 FEET. WAVE
DETAIL: WEST 1 FOOT AT 3 SECONDS.
SUNDAY NIGHT
WEST WINDS 10 TO 15 KNOTS. SEAS 1 FOOT OR LESS,
THEN AROUND 2 FEET AFTER MIDNIGHT. WAVE DETAIL: WEST 1 FOOT AT
3 SECONDS, BECOMING WEST 2 FEET AT 3 SECONDS.
MONDAY
NORTHWEST WINDS 10 TO 15 KNOTS, BECOMING WEST 5 TO
10 KNOTS IN THE AFTERNOON. SEAS 1 TO 2 FEET.
MONDAY NIGHT
WEST WINDS 10 TO 15 KNOTS. SEAS 1 FOOT OR LESS,
THEN AROUND 2 FEET AFTER MIDNIGHT.
TUESDAY
NORTHWEST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET.
TUESDAY NIGHT
WEST WINDS AROUND 10 KNOTS. SEAS AROUND 2 FEET.
A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.
GMZ470-172100-
COASTAL WATERS FROM CAMERON LA TO HIGH ISLAND TX FROM 20 TO 60 NM-
308 AM CDT FRI JUL 17 2026
TODAY
SOUTH WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET. WAVE
DETAIL: SOUTH 3 FEET AT 5 SECONDS.
TONIGHT
SOUTH WINDS AROUND 10 KNOTS. SEAS AROUND 2 FEET. WAVE
DETAIL: SOUTH 2 FEET AT 5 SECONDS.
SATURDAY
SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET.
WAVE DETAIL: SOUTH 2 FEET AT 6 SECONDS.
SATURDAY NIGHT
SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS AROUND
2 FEET. WAVE DETAIL: SOUTH 2 FEET AT 5 SECONDS.
SUNDAY
WEST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET. WAVE
DETAIL: SOUTH 2 FEET AT 5 SECONDS.
SUNDAY NIGHT
SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS AROUND
2 FEET. WAVE DETAIL: SOUTH 2 FEET AT 5 SECONDS.
MONDAY
WEST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET.
MONDAY NIGHT
SOUTHWEST WINDS 5 TO 10 KNOTS, INCREASING TO
10 TO 15 KNOTS AFTER MIDNIGHT. SEAS AROUND 2 FEET.
TUESDAY
WEST WINDS 10 TO 15 KNOTS, DIMINISHING TO 5 TO
10 KNOTS IN THE AFTERNOON. SEAS AROUND 2 FEET.
TUESDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KNOTS. SEAS AROUND
2 FEET.
GMZ472-172100-
COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA FROM 20 TO
60 NM-
308 AM CDT FRI JUL 17 2026
TODAY
SOUTH WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET. WAVE
DETAIL: SOUTH 2 FEET AT 5 SECONDS.
TONIGHT
SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET.
WAVE DETAIL: SOUTH 2 FEET AT 5 SECONDS.
SATURDAY
WEST WINDS 5 TO 10 KNOTS, DIMINISHING TO AROUND
5 KNOTS IN THE AFTERNOON. SEAS AROUND 2 FEET. WAVE DETAIL: SOUTH
2 FEET AT 6 SECONDS.
SATURDAY NIGHT
WEST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET.
WAVE DETAIL: SOUTHWEST 2 FEET AT 3 SECONDS AND SOUTH 1 FOOT AT
6 SECONDS.
SUNDAY
WEST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET. WAVE
DETAIL: SOUTHWEST 2 FEET AT 5 SECONDS.
SUNDAY NIGHT
WEST WINDS 5 TO 10 KNOTS, INCREASING TO 10 TO
15 KNOTS AFTER MIDNIGHT. SEAS AROUND 2 FEET. WAVE DETAIL:
SOUTHWEST 2 FEET AT 4 SECONDS.
MONDAY
NORTHWEST WINDS 10 TO 15 KNOTS, DIMINISHING TO 5 TO
10 KNOTS IN THE AFTERNOON. SEAS AROUND 2 FEET.
MONDAY NIGHT
WEST WINDS 5 TO 10 KNOTS, INCREASING TO 10 TO
15 KNOTS AFTER MIDNIGHT. SEAS AROUND 2 FEET.
TUESDAY
NORTHWEST WINDS 10 TO 15 KNOTS, BECOMING WEST 5 TO
10 KNOTS IN THE AFTERNOON. SEAS 2 TO 3 FEET.
TUESDAY NIGHT
WEST WINDS 10 TO 15 KNOTS. SEAS AROUND 2 FEET. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.
GMZ475-172100-
COASTAL WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY
LA FROM 20 TO 60 NM-
308 AM CDT FRI JUL 17 2026
TODAY
SOUTHWEST WINDS AROUND 5 KNOTS. SEAS AROUND 2 FEET. WAVE
DETAIL: SOUTHEAST 2 FEET AT 6 SECONDS.
TONIGHT
WEST WINDS 5 TO 10 KNOTS. SEAS 1 FOOT OR LESS, THEN
AROUND 2 FEET AFTER MIDNIGHT. WAVE DETAIL: SOUTH 1 FOOT AT
6 SECONDS.
SATURDAY
NORTHWEST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET.
WAVE DETAIL: SOUTH 1 FOOT AT 6 SECONDS.
SATURDAY NIGHT
WEST WINDS 5 TO 10 KNOTS, INCREASING TO 10 TO
15 KNOTS AFTER MIDNIGHT. SEAS AROUND 2 FEET. WAVE DETAIL: WEST
2 FEET AT 3 SECONDS AND SOUTH 1 FOOT AT 6 SECONDS.
SUNDAY
NORTHWEST WINDS 10 TO 15 KNOTS, DIMINISHING TO 5 TO
10 KNOTS IN THE AFTERNOON. SEAS 2 TO 3 FEET. WAVE DETAIL:
SOUTHWEST 2 FEET AT 4 SECONDS.
SUNDAY NIGHT
WEST WINDS 5 TO 10 KNOTS, INCREASING TO 10 TO
15 KNOTS AFTER MIDNIGHT. SEAS AROUND 2 FEET. WAVE DETAIL:
SOUTHWEST 2 FEET AT 4 SECONDS.
MONDAY
NORTHWEST WINDS 10 TO 15 KNOTS, DIMINISHING TO 5 TO
10 KNOTS IN THE AFTERNOON. SEAS 2 TO 4 FEET. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE MORNING.
MONDAY NIGHT
WEST WINDS 10 TO 15 KNOTS. SEAS AROUND 2 FEET. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.
TUESDAY
NORTHWEST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING.
TUESDAY NIGHT
WEST WINDS 10 TO 15 KNOTS. SEAS AROUND 2 FEET. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.
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