Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 300840
CWFLCH

COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE LAKE CHARLES LA
340 AM CDT SUN APR 30 2017

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.

GMZ400-302115-
SYNOPSIS FOR LOWER ATCHAFALAYA RIVER LA TO HIGH ISLAND TX OUT
60 NM INCLUDING SABINE AND CALCASIEU LAKES AND VERMILION BAY
340 AM CDT SUN APR 30 2017

.SYNOPSIS...
A COLD FRONT WITH SHOWERS AND THUNDERSTORMS ALONG IT WILL MOVE
RAPIDLY THROUGH SOUTHWEST LOUISIANA AND THE COASTAL WATERS THIS
MORNING. ONSHORE FLOW WILL WEAKEN ESPECIALLY DURING THE AFTERNOON
HOURS AND WILL FURTHER DIMINISH TONIGHT. HIGH PRESSURE WILL BUILD
OVER THE AREA TONIGHT AND MONDAY.

ONSHORE FLOW WILL STRENGTHEN TUESDAY NIGHT AND WEDNESDAY AS LOW
PRESSURE DEVELOPS OVER THE SOUTHERN PLAINS. THE CHANCE FOR SHOWERS
AND THUNDERSTORMS WILL INCREASE AS WELL AS AN UPPER LEVEL
DISTURBANCE APPROACHES.

$$

GMZ430-302115-
SABINE LAKE-
340 AM CDT SUN APR 30 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...
...TORNADO WATCH 180 IN EFFECT UNTIL 9 AM CDT THIS MORNING...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 10 AM CDT THIS
MORNING THROUGH THIS AFTERNOON...

.TODAY...NORTHWEST WINDS 10 TO 15 KNOTS. LAKE WATERS CHOPPY.
SHOWERS AND THUNDERSTORMS LIKELY IN THE MORNING, THEN SLIGHT
CHANCE OF SHOWERS IN THE AFTERNOON.
.TONIGHT...WEST WINDS 5 TO 10 KNOTS. LAKE WATERS A LIGHT CHOP.
.MONDAY...WEST WINDS AROUND 5 KNOTS BECOMING SOUTH IN THE
AFTERNOON. LAKE WATERS SMOOTH.
.MONDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KNOTS. LAKE WATERS A
LIGHT CHOP.
.TUESDAY...SOUTHEAST WINDS 5 TO 10 KNOTS. LAKE WATERS A LIGHT
CHOP.
.TUESDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS. LAKE WATERS
CHOPPY. CHANCE OF SHOWERS AND THUNDERSTORMS.
.WEDNESDAY...SOUTH WINDS 10 TO 15 KNOTS. LAKE WATERS CHOPPY.
SHOWERS AND THUNDERSTORMS LIKELY.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KNOTS BECOMING
NORTHWEST 5 TO 10 KNOTS AFTER MIDNIGHT. LAKE WATERS CHOPPY
DECREASING TO A LIGHT CHOP AFTER MIDNIGHT. SHOWERS AND
THUNDERSTORMS LIKELY.
.THURSDAY...NORTHWEST WINDS 10 TO 15 KNOTS. LAKE WATERS CHOPPY.
CHANCE OF SHOWERS AND THUNDERSTORMS.
.THURSDAY NIGHT...NORTHWEST WINDS 10 TO 15 KNOTS. LAKE WATERS
CHOPPY. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.

$$

GMZ432-302115-
CALCASIEU LAKE-
340 AM CDT SUN APR 30 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...
...TORNADO WATCH 180 IN EFFECT UNTIL 9 AM CDT THIS MORNING...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 10 AM CDT THIS
MORNING THROUGH THIS AFTERNOON...

.TODAY...NORTHWEST WINDS 10 TO 15 KNOTS. LAKE WATERS CHOPPY.
THUNDERSTORMS AND SHOWERS IN THE MORNING, THEN CHANCE OF SHOWERS
IN THE AFTERNOON.
.TONIGHT...WEST WINDS 5 TO 10 KNOTS. LAKE WATERS A LIGHT CHOP.
.MONDAY...WEST WINDS AROUND 5 KNOTS BECOMING SOUTH IN THE
AFTERNOON. LAKE WATERS SMOOTH.
.MONDAY NIGHT...SOUTH WINDS 5 TO 10 KNOTS. LAKE WATERS A LIGHT
CHOP.
.TUESDAY...SOUTHEAST WINDS 5 TO 10 KNOTS. LAKE WATERS A LIGHT
CHOP.
.TUESDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS. LAKE WATERS
CHOPPY. CHANCE OF SHOWERS AND THUNDERSTORMS.
.WEDNESDAY...SOUTH WINDS 10 TO 15 KNOTS. LAKE WATERS CHOPPY.
SHOWERS AND THUNDERSTORMS LIKELY.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KNOTS BECOMING
NORTHWEST AFTER MIDNIGHT. LAKE WATERS CHOPPY DECREASING TO A
LIGHT CHOP AFTER MIDNIGHT. SHOWERS AND THUNDERSTORMS LIKELY.
.THURSDAY...NORTHWEST WINDS AROUND 10 KNOTS. LAKE WATERS A LIGHT
CHOP. CHANCE OF SHOWERS AND THUNDERSTORMS.
.THURSDAY NIGHT...NORTHWEST WINDS 10 TO 15 KNOTS. LAKE WATERS
CHOPPY. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.

$$

GMZ435-302115-
VERMILION BAY-
340 AM CDT SUN APR 30 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST 5 TO
10 KNOTS IN THE AFTERNOON. BAY WATERS ROUGH DECREASING TO A LIGHT
CHOP IN THE AFTERNOON. THUNDERSTORMS AND SHOWERS IN THE MORNING,
THEN SHOWERS AND THUNDERSTORMS LIKELY IN THE AFTERNOON.
.TONIGHT...NORTHWEST WINDS 5 TO 10 KNOTS. BAY WATERS A LIGHT
CHOP. SLIGHT CHANCE OF RAIN SHOWERS IN THE EVENING.
.MONDAY...NORTH WINDS UP TO 5 KNOTS BECOMING NORTHEAST AROUND
5 KNOTS IN THE AFTERNOON. BAY WATERS SMOOTH.
.MONDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS A LIGHT
CHOP.
.TUESDAY...SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS A LIGHT
CHOP.
.TUESDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS. BAY WATERS
CHOPPY. CHANCE OF SHOWERS AND THUNDERSTORMS.
.WEDNESDAY...SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS CHOPPY.
CHANCE OF SHOWERS AND THUNDERSTORMS.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS CHOPPY.
SHOWERS AND THUNDERSTORMS LIKELY.
.THURSDAY...NORTHWEST WINDS 10 TO 15 KNOTS. BAY WATERS CHOPPY.
CHANCE OF SHOWERS AND THUNDERSTORMS.
.THURSDAY NIGHT...NORTHWEST WINDS 10 TO 15 KNOTS. BAY WATERS
CHOPPY. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.

$$

GMZ450-302115-
COASTAL WATERS FROM CAMERON LA TO HIGH ISLAND TX OUT 20 NM-
340 AM CDT SUN APR 30 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON
THROUGH LATE TONIGHT...

.TODAY...NORTHWEST WINDS 15 TO 20 KNOTS. SEAS 3 TO 5 FEET. CHANCE
OF THUNDERSTORMS IN THE MORNING. CHANCE OF SHOWERS THROUGH THE
DAY.
.TONIGHT...NORTHWEST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.
.MONDAY...NORTHEAST WINDS AROUND 5 KNOTS BECOMING SOUTHEAST IN
THE AFTERNOON. SEAS 1 TO 2 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 1 TO 3 FEET.
.TUESDAY...SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.
.TUESDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO
4 FEET. CHANCE OF SHOWERS AND THUNDERSTORMS.
.WEDNESDAY...SOUTH WINDS 15 TO 20 KNOTS. SEAS 2 TO 4 FEET.
SHOWERS AND THUNDERSTORMS LIKELY.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING
NORTHWEST 10 TO 15 KNOTS AFTER MIDNIGHT. SEAS 3 TO 5 FEET.
SHOWERS AND THUNDERSTORMS LIKELY.
.THURSDAY...NORTHWEST WINDS 15 TO 20 KNOTS. SEAS 2 TO 4 FEET.
CHANCE OF SHOWERS AND THUNDERSTORMS.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 20 KNOTS. SEAS 1 TO
3 FEET. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.

$$

GMZ452-302115-
COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM-
340 AM CDT SUN APR 30 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON
THROUGH LATE TONIGHT...

.TODAY...WEST WINDS 15 TO 20 KNOTS. SEAS 3 TO 6 FEET WITH
OCCASIONAL SEAS UP TO 7 FEET. THUNDERSTORMS AND SHOWERS IN THE
MORNING, THEN CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
.TONIGHT...NORTHWEST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.
.MONDAY...NORTHEAST WINDS UP TO 5 KNOTS BECOMING SOUTHEAST AROUND
5 KNOTS IN THE AFTERNOON. SEAS 1 TO 3 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 1 TO 2 FEET.
.TUESDAY...SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 1 TO 3 FEET.
.TUESDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO
4 FEET. CHANCE OF SHOWERS AND THUNDERSTORMS.
.WEDNESDAY...SOUTH WINDS 15 TO 20 KNOTS. SEAS 2 TO 4 FEET.
SHOWERS AND THUNDERSTORMS LIKELY.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 15 TO 20 KNOTS. SEAS 3 TO
5 FEET. SHOWERS AND THUNDERSTORMS LIKELY.
.THURSDAY...NORTHWEST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET.
CHANCE OF SHOWERS AND THUNDERSTORMS.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 20 KNOTS. SEAS 2 TO
4 FEET. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.

$$

GMZ455-302115-
COASTAL WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY
LA OUT 20 NM-
340 AM CDT SUN APR 30 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON
THROUGH LATE TONIGHT...

.TODAY...SOUTH WINDS 20 TO 25 KNOTS BECOMING WEST 15 TO 20 KNOTS
IN THE AFTERNOON. SEAS 3 TO 5 FEET. THUNDERSTORMS IN THE MORNING.
SHOWERS THROUGH THE DAY. THUNDERSTORMS IN THE AFTERNOON.
.TONIGHT...NORTHWEST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING.
.MONDAY...NORTH WINDS 5 TO 10 KNOTS BECOMING EAST IN THE
AFTERNOON. SEAS 1 TO 3 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 FOOT OR
LESS.
.TUESDAY...SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 1 TO 3 FEET.
.TUESDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 1 TO
3 FEET. CHANCE OF SHOWERS AND THUNDERSTORMS.
.WEDNESDAY...SOUTH WINDS 15 TO 20 KNOTS. SEAS 1 TO 3 FEET. CHANCE
OF SHOWERS AND THUNDERSTORMS.
.WEDNESDAY NIGHT...SOUTH WINDS 15 TO 20 KNOTS. SEAS 2 TO 4 FEET.
SHOWERS AND THUNDERSTORMS LIKELY.
.THURSDAY...NORTHWEST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.
SHOWERS AND THUNDERSTORMS LIKELY.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 20 KNOTS. SEAS 2 TO
4 FEET. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.

$$

GMZ470-302115-
WATERS FROM CAMERON LA TO HIGH ISLAND TX FROM 20 TO 60 NM-
340 AM CDT SUN APR 30 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON
THROUGH LATE TONIGHT...

.TODAY...NORTHWEST WINDS 20 TO 25 KNOTS. SEAS 5 TO 8 FEET WITH
OCCASIONAL SEAS UP TO 10 FEET. CHANCE OF THUNDERSTORMS IN THE
MORNING. CHANCE OF SHOWERS THROUGH THE DAY.
.TONIGHT...NORTH WINDS 10 TO 15 KNOTS. SEAS 4 TO 7 FEET WITH
OCCASIONAL SEAS UP TO 8 FEET.
.MONDAY...EAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 4 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.
.TUESDAY...SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
.TUESDAY NIGHT...SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 3 TO
5 FEET. CHANCE OF SHOWERS AND THUNDERSTORMS.
.WEDNESDAY...SOUTH WINDS 15 TO 20 KNOTS. SEAS 3 TO 5 FEET. CHANCE
OF SHOWERS AND THUNDERSTORMS.
.WEDNESDAY NIGHT...SOUTH WINDS 15 TO 20 KNOTS BECOMING WEST 10 TO
15 KNOTS AFTER MIDNIGHT. SEAS 3 TO 6 FEET WITH OCCASIONAL SEAS UP
TO 7 FEET. SHOWERS AND THUNDERSTORMS LIKELY.
.THURSDAY...NORTHWEST WINDS 15 TO 20 KNOTS. SEAS 3 TO 6 FEET WITH
OCCASIONAL SEAS UP TO 7 FEET. CHANCE OF SHOWERS AND
THUNDERSTORMS.
.THURSDAY NIGHT...NORTH WINDS 15 TO 20 KNOTS. SEAS 3 TO 6 FEET
WITH OCCASIONAL SEAS UP TO 7 FEET. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS.

$$

GMZ472-302115-
WATERS FROM  INTRACOASTAL CITY TO CAMERON LA FROM 20 TO 60 NM-
340 AM CDT SUN APR 30 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON
THROUGH LATE TONIGHT...

.TODAY...SOUTHWEST WINDS 15 TO 20 KNOTS BECOMING NORTHWEST 10 TO
15 KNOTS IN THE AFTERNOON. SEAS 6 TO 10 FEET WITH OCCASIONAL SEAS
UP TO 11 FEET. SHOWERS AND THUNDERSTORMS IN THE MORNING, THEN
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
.TONIGHT...NORTHWEST WINDS 10 TO 15 KNOTS. SEAS 5 TO 8 FEET WITH
OCCASIONAL SEAS UP TO 10 FEET. SLIGHT CHANCE OF SHOWERS IN THE
EVENING.
.MONDAY...EAST WINDS 5 TO 10 KNOTS. SEAS 3 TO 5 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.
.TUESDAY...SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET.
SLIGHT CHANCE OF SHOWERS.
.TUESDAY NIGHT...SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 3 TO
5 FEET. CHANCE OF SHOWERS AND THUNDERSTORMS.
.WEDNESDAY...SOUTH WINDS 15 TO 20 KNOTS. SEAS 3 TO 6 FEET WITH
OCCASIONAL SEAS UP TO 6 FEET. CHANCE OF SHOWERS AND
THUNDERSTORMS.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 15 TO 20 KNOTS. SEAS 4 TO
7 FEET WITH OCCASIONAL SEAS UP TO 7 FEET. SHOWERS AND
THUNDERSTORMS LIKELY.
.THURSDAY...NORTHWEST WINDS 15 TO 20 KNOTS. SEAS 3 TO 6 FEET WITH
OCCASIONAL SEAS UP TO 7 FEET. CHANCE OF SHOWERS AND
THUNDERSTORMS.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 20 KNOTS. SEAS 3 TO
6 FEET WITH OCCASIONAL SEAS UP TO 7 FEET. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS.

$$

GMZ475-302115-
WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY LA FROM
20 TO 60 NM-
340 AM CDT SUN APR 30 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON
THROUGH LATE TONIGHT...

.TODAY...SOUTH WINDS 20 TO 25 KNOTS BECOMING WEST 15 TO 20 KNOTS
IN THE AFTERNOON. SEAS 8 TO 12 FEET WITH OCCASIONAL SEAS UP TO
13 FEET. SHOWERS AND THUNDERSTORMS IN THE MORNING, THEN CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
.TONIGHT...NORTHWEST WINDS 10 TO 15 KNOTS. SEAS 5 TO 8 FEET WITH
OCCASIONAL SEAS UP TO 10 FEET. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING.
.MONDAY...NORTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 6 FEET WITH
OCCASIONAL SEAS UP TO 7 FEET.
.MONDAY NIGHT...EAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.
.TUESDAY...SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
.TUESDAY NIGHT...SOUTHEAST WINDS AROUND 15 KNOTS. SEAS 3 TO
5 FEET. CHANCE OF SHOWERS AND THUNDERSTORMS.
.WEDNESDAY...SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 3 TO 5 FEET.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
.WEDNESDAY NIGHT...SOUTH WINDS 15 TO 20 KNOTS. SEAS 4 TO 7 FEET
WITH OCCASIONAL SEAS UP TO 7 FEET. SHOWERS AND THUNDERSTORMS
LIKELY.
.THURSDAY...WEST WINDS 10 TO 15 KNOTS. SEAS 4 TO 7 FEET WITH
OCCASIONAL SEAS UP TO 8 FEET. SHOWERS AND THUNDERSTORMS LIKELY.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 20 KNOTS. SEAS 4 TO
7 FEET WITH OCCASIONAL SEAS UP TO 8 FEET. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS.

$$

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