Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 220845
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
345 AM CDT Sun Oct 22 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.

GMZ400-222115-
Synopsis for Lower Atchafalaya River LA to High Island TX out
60 NM including Sabine and Calcasieu Lakes and Vermilion Bay
345 AM CDT Sun Oct 22 2017

.SYNOPSIS...
Onshore flow will shift offshore during the afternoon as a cold
front crosses the region. Widespread showers and thunderstorms
can be expected along and ahead of the front today. Offshore flow
will strengthen tonight and continue into Monday as cooler and
drier air moves into the area, and exercise caution conditions are
expected. A secondary front will move across the coastal waters by
Tuesday, further increasing the winds and seas and possibly
requiring Small Craft Advisories Tuesday into Wednesday.

$$

GMZ430-222115-
Sabine Lake-
345 AM CDT Sun Oct 22 2017

.TODAY...Southwest winds 5 to 10 knots becoming northwest in the
afternoon. Lake waters a light chop. Showers and thunderstorms
through the day.
.TONIGHT...North winds 10 to 15 knots. Lake waters choppy.
.MONDAY...North winds 5 to 10 knots. Lake waters a light chop.
.MONDAY NIGHT...Northwest winds 5 to 10 knots. Lake waters a
light chop.
.TUESDAY...North winds 10 to 15 knots. Lake waters choppy.
.TUESDAY NIGHT...Northwest winds 10 to 15 knots. Lake waters
choppy.
.WEDNESDAY...Northwest winds 5 to 10 knots. Lake waters a light
chop.
.WEDNESDAY NIGHT...West winds 5 to 10 knots becoming southwest
after midnight. Lake waters a light chop decreasing to smooth
after midnight.
.THURSDAY...South winds 5 to 10 knots. Lake waters a light chop.
.THURSDAY NIGHT...South winds 10 to 15 knots. Lake waters choppy.

$$

GMZ432-222115-
Calcasieu Lake-
345 AM CDT Sun Oct 22 2017

.TODAY...Southwest winds 5 to 10 knots becoming northwest in the
afternoon. Lake waters a light chop. Showers and thunderstorms
through the day.
.TONIGHT...North winds 10 to 15 knots. Lake waters choppy.
.MONDAY...North winds around 10 knots. Lake waters a light chop.
.MONDAY NIGHT...Northwest winds 5 to 10 knots. Lake waters a
light chop.
.TUESDAY...North winds 10 to 15 knots. Lake waters choppy.
.TUESDAY NIGHT...Northwest winds 10 to 15 knots. Lake waters
choppy.
.WEDNESDAY...Northwest winds 5 to 10 knots. Lake waters a light
chop.
.WEDNESDAY NIGHT...West winds 5 to 10 knots becoming southwest
after midnight. Lake waters a light chop decreasing to smooth
after midnight.
.THURSDAY...South winds 5 to 10 knots. Lake waters a light chop.
.THURSDAY NIGHT...South winds around 10 knots. Lake waters a
light chop.

$$

GMZ435-222115-
Vermilion Bay-
345 AM CDT Sun Oct 22 2017

.TODAY...Southeast winds 5 to 10 knots becoming southwest in the
afternoon. Bay waters a light chop decreasing to smooth in the
afternoon. Showers and thunderstorms likely in the morning, then
showers and thunderstorms in the afternoon.
.TONIGHT...North winds 10 to 15 knots. Bay waters choppy. Slight
chance of showers in the evening.
.MONDAY...North winds 10 to 15 knots. Bay waters choppy.
.MONDAY NIGHT...North winds 10 to 15 knots. Bay waters choppy.
.TUESDAY...North winds 15 to 20 knots. Bay waters rough.
.TUESDAY NIGHT...North winds 10 to 15 knots. Bay waters choppy.
.WEDNESDAY...Northwest winds 10 to 15 knots. Bay waters choppy.
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots becoming
southwest after midnight. Bay waters a light chop decreasing to
smooth after midnight.
.THURSDAY...South winds 5 to 10 knots. Bay waters a light chop.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters a light
chop.

$$

GMZ450-222115-
Coastal waters from Cameron LA to High Island TX out 20 NM-
345 AM CDT Sun Oct 22 2017

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS EVENING
THROUGH MONDAY EVENING...

.TODAY...Southwest winds 5 to 10 knots becoming northwest 10 to
15 knots in the afternoon. Seas 1 to 3 feet. Chance of showers
and thunderstorms in the morning, then showers and thunderstorms
in the afternoon.
.TONIGHT...North winds 15 to 20 knots. Seas 1 to 3 feet.
.MONDAY...North winds 15 to 20 knots. Seas 1 to 3 feet.
.MONDAY NIGHT...North winds 15 to 20 knots. Seas 1 to 2 feet.
.TUESDAY...North winds 15 to 20 knots. Seas 1 to 3 feet.
.TUESDAY NIGHT...North winds 20 to 25 knots. Seas 1 to 3 feet.
.WEDNESDAY...North winds 10 to 15 knots. Seas 1 foot or less.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
.THURSDAY...South winds 10 to 15 knots. Seas 1 foot or less.
.THURSDAY NIGHT...South winds 15 to 20 knots. Seas 2 to 4 feet.

$$

GMZ452-222115-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
345 AM CDT Sun Oct 22 2017

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS EVENING
THROUGH MONDAY EVENING...

.TODAY...South winds 5 to 10 knots becoming west in the
afternoon. Seas 1 to 3 feet. Showers and thunderstorms likely in
the morning, then showers and thunderstorms in the afternoon.
.TONIGHT...North winds 15 to 20 knots. Seas 2 to 4 feet.
.MONDAY...North winds 15 to 20 knots. Seas 2 to 4 feet.
.MONDAY NIGHT...North winds 15 to 20 knots. Seas 1 to 3 feet.
.TUESDAY...North winds 15 to 20 knots. Seas 1 to 3 feet.
.TUESDAY NIGHT...North winds 20 to 25 knots. Seas 1 to 3 feet.
.WEDNESDAY...North winds 15 to 20 knots. Seas 1 to 3 feet.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
.THURSDAY...South winds 5 to 10 knots. Seas 1 foot or less.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.

$$

GMZ455-222115-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
345 AM CDT Sun Oct 22 2017

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS EVENING
THROUGH MONDAY EVENING...

.TODAY...Southeast winds 5 to 10 knots becoming southwest in the
afternoon. Seas 1 foot or less. Showers and thunderstorms likely
in the morning, then showers and thunderstorms in the afternoon.
.TONIGHT...North winds 15 to 20 knots. Seas 1 to 3 feet. Slight
chance of showers in the evening.
.MONDAY...North winds 15 to 20 knots. Seas 1 to 3 feet.
.MONDAY NIGHT...North winds 15 to 20 knots. Seas 1 to 3 feet.
.TUESDAY...North winds 15 to 20 knots. Seas 1 to 3 feet.
.TUESDAY NIGHT...North winds 20 to 25 knots. Seas 1 to 3 feet.
.WEDNESDAY...North winds 15 to 20 knots. Seas 1 foot or less.
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or
less.
.THURSDAY...South winds 5 to 10 knots. Seas 1 foot or less.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 1 to 3 feet.

$$

GMZ470-222115-
Waters from Cameron LA to High Island TX from 20 to 60 NM-
345 AM CDT Sun Oct 22 2017

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS EVENING
THROUGH MONDAY EVENING...

.TODAY...Southwest winds 5 to 10 knots becoming northwest 10 to
15 knots in the afternoon. Seas 2 to 4 feet. Showers and
thunderstorms likely in the morning, then showers and
thunderstorms in the afternoon.
.TONIGHT...North winds 15 to 20 knots. Seas 3 to 6 feet with
occasional seas up to 7 feet.
.MONDAY...North winds 15 to 20 knots. Seas 3 to 5 feet.
.MONDAY NIGHT...North winds 15 to 20 knots. Seas 2 to 4 feet.
.TUESDAY...North winds 20 to 25 knots. Seas 3 to 5 feet.
.TUESDAY NIGHT...North winds 20 to 25 knots. Seas 3 to 6 feet
with occasional seas up to 7 feet.
.WEDNESDAY...North winds 15 to 20 knots. Seas 2 to 4 feet.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. Seas 1 to 2 feet.
.THURSDAY...South winds 10 to 15 knots. Seas 1 to 2 feet.
.THURSDAY NIGHT...South winds 15 to 20 knots. Seas 3 to 5 feet.

$$

GMZ472-222115-
Waters from  Intracoastal City to Cameron LA from 20 to 60 NM-
345 AM CDT Sun Oct 22 2017

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS EVENING
THROUGH MONDAY EVENING...

.TODAY...South winds 5 to 10 knots becoming northwest in the
afternoon. Seas 2 to 4 feet. Showers and thunderstorms likely in
the morning, then showers and thunderstorms in the afternoon.
.TONIGHT...North winds 15 to 20 knots. Seas 3 to 5 feet.
.MONDAY...North winds 15 to 20 knots. Seas 3 to 6 feet with
occasional seas up to 7 feet.
.MONDAY NIGHT...North winds 15 to 20 knots. Seas 2 to 4 feet.
.TUESDAY...North winds 20 to 25 knots. Seas 3 to 5 feet.
.TUESDAY NIGHT...North winds 20 to 25 knots. Seas 3 to 6 feet
with occasional seas up to 7 feet.
.WEDNESDAY...North winds 15 to 20 knots. Seas 2 to 4 feet.
.WEDNESDAY NIGHT...Northwest winds 10 to 15 knots becoming west
around 5 knots after midnight. Seas 1 to 2 feet.
.THURSDAY...South winds 5 to 10 knots. Seas 1 to 2 feet.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 5 feet.

$$

GMZ475-222115-
Waters from Lower Atchafalaya River to Intracoastal City LA from
20 to 60 NM-
345 AM CDT Sun Oct 22 2017

...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS EVENING
THROUGH MONDAY EVENING...

.TODAY...Southeast winds 10 to 15 knots becoming west 5 to
10 knots in the afternoon. Seas 3 to 5 feet. Showers and
thunderstorms likely in the morning, then showers and
thunderstorms in the afternoon.
.TONIGHT...North winds 15 to 20 knots. Seas 3 to 5 feet. Slight
chance of showers in the evening.
.MONDAY...North winds 15 to 20 knots. Seas 3 to 6 feet with
occasional seas up to 7 feet.
.MONDAY NIGHT...North winds 15 to 20 knots. Seas 3 to 5 feet.
.TUESDAY...North winds 20 to 25 knots. Seas 3 to 5 feet.
.TUESDAY NIGHT...North winds 20 to 25 knots. Seas 3 to 5 feet.
.WEDNESDAY...North winds 15 to 20 knots. Seas 3 to 5 feet.
.WEDNESDAY NIGHT...North winds 10 to 15 knots becoming northwest
around 5 knots after midnight. Seas 1 to 3 feet.
.THURSDAY...South winds 5 to 10 knots. Seas 1 to 2 feet.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.

$$

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