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National Weather Service Marine Forecast FZUS54 KLCH

FZUS54 KLCH 221531
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
1031 AM CDT Tue Aug 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.

GMZ400-230430-
Synopsis for Lower Atchafalaya River LA to High Island TX out
60 NM including Sabine and Calcasieu Lakes and Vermilion Bay
1031 AM CDT Tue Aug 22 2017

SYNOPSIS

Light southeast winds and low seas will continue through
Wednesday as surface high pressure ridges west across the Gulf
States. Scattered showers and thunderstorms are expected each
afternoon. The high is forecast to breakdown late Wednesday as
the region is squeezed between an approaching cold front to the
north and what is likely to be a regenerating Harvey over the
Southern Gulf of Mexico. Elevated winds and seas are possible
through the weekend over the Gulf waters pending the eventual
track and strength of this system, which at this time is forecast
to move ashore near the middle Texas coast late Friday.



GMZ430-230430-
Sabine Lake-
1031 AM CDT Tue Aug 22 2017

REST OF TODAY
East winds around 5 knots. Lake waters smooth.
Chance of showers and thunderstorms.

TONIGHT
East winds up to 5 knots. Lake waters smooth. Slight
chance of showers and thunderstorms after midnight.

WEDNESDAY
Northeast winds up to 5 knots becoming east around
5 knots in the afternoon. Lake waters smooth. Chance of showers
and thunderstorms.

WEDNESDAY NIGHT
Southeast winds up to 5 knots becoming north
after midnight. Lake waters smooth. Chance of showers and
thunderstorms.

THURSDAY
East winds 5 to 10 knots. Lake waters a light chop.
Chance of showers and thunderstorms in the morning, then showers
and thunderstorms likely in the afternoon.

THURSDAY NIGHT
East winds 5 to 10 knots. Lake waters a light
chop. Chance of showers and thunderstorms.

FRIDAY
East winds 5 to 10 knots. Lake waters a light chop.
Chance of showers and thunderstorms.

FRIDAY NIGHT
East winds 10 to 15 knots. Lake waters choppy.
Showers and thunderstorms likely.

SATURDAY
Southeast winds 10 to 15 knots. Lake waters choppy.
Showers and thunderstorms likely.

SATURDAY NIGHT
Southeast winds 5 to 10 knots. Lake waters a
light chop. Showers and thunderstorms likely.



GMZ432-230430-
Calcasieu Lake-
1031 AM CDT Tue Aug 22 2017

REST OF TODAY
East winds around 5 knots. Lake waters smooth.
Chance of showers and thunderstorms.

TONIGHT
East winds up to 5 knots. Lake waters smooth. Slight
chance of showers and thunderstorms.

WEDNESDAY
East winds up to 5 knots. Lake waters smooth. Chance
of showers and thunderstorms.

WEDNESDAY NIGHT
Southeast winds up to 5 knots becoming
northeast after midnight. Lake waters smooth. Chance of showers
and thunderstorms.

THURSDAY
Northeast winds 5 to 10 knots. Lake waters a light
chop. Chance of showers and thunderstorms in the morning, then
showers and thunderstorms likely in the afternoon.

THURSDAY NIGHT
East winds 5 to 10 knots. Lake waters a light
chop. Chance of showers and thunderstorms.

FRIDAY
East winds 5 to 10 knots. Lake waters a light chop.
Chance of showers and thunderstorms.

FRIDAY NIGHT
East winds 10 to 15 knots. Lake waters choppy.
Chance of showers and thunderstorms.

SATURDAY
Southeast winds 10 to 15 knots. Lake waters choppy.
Showers and thunderstorms likely.

SATURDAY NIGHT
Southeast winds 5 to 10 knots. Lake waters a
light chop. Showers and thunderstorms likely.



GMZ435-230430-
Vermilion Bay-
1031 AM CDT Tue Aug 22 2017

REST OF TODAY
East winds around 5 knots. Bay waters smooth.
Chance of showers and thunderstorms.

TONIGHT
East winds up to 5 knots. Bay waters smooth. Slight
chance of showers and thunderstorms.

WEDNESDAY
Northeast winds up to 5 knots becoming east around
5 knots in the afternoon. Bay waters smooth. Chance of showers
and thunderstorms.

WEDNESDAY NIGHT
Southeast winds up to 5 knots becoming north
after midnight. Bay waters smooth. Chance of showers and
thunderstorms.

THURSDAY
East winds 5 to 10 knots. Bay waters a light chop.
Chance of showers and thunderstorms in the morning, then showers
and thunderstorms likely in the afternoon.

THURSDAY NIGHT
East winds 5 to 10 knots. Bay waters a light
chop. Chance of showers and thunderstorms.

FRIDAY
East winds 5 to 10 knots. Bay waters a light chop.
Chance of showers and thunderstorms.

FRIDAY NIGHT
Southeast winds 5 to 10 knots. Bay waters a light
chop. Chance of showers and thunderstorms.

SATURDAY
Southeast winds 5 to 10 knots. Bay waters a light
chop. Chance of showers and thunderstorms.

SATURDAY NIGHT
Southeast winds 5 to 10 knots. Bay waters a
light chop. Chance of showers and thunderstorms.



GMZ450-230430-
Coastal waters from Cameron LA to High Island TX out 20 NM-
1031 AM CDT Tue Aug 22 2017

REST OF TODAY
East winds 5 to 10 knots. Seas 1 to 2 feet.
Chance of showers and thunderstorms.

TONIGHT
Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Slight chance of showers and thunderstorms through the night.

WEDNESDAY
East winds 5 to 10 knots. Seas 1 to 2 feet. Chance
of showers and thunderstorms.

WEDNESDAY NIGHT
East winds 5 to 10 knots. Seas 1 to 2 feet.
Slight chance of showers and thunderstorms in the evening, then
chance of showers and thunderstorms after midnight.

THURSDAY
East winds 10 to 15 knots. Seas 1 to 3 feet. Chance
of showers and thunderstorms in the morning, then showers and
thunderstorms likely in the afternoon.

THURSDAY NIGHT
East winds 15 to 20 knots. Seas 3 to 5 feet.
Chance of showers and thunderstorms.

FRIDAY
East winds 20 to 25 knots. Seas 3 to 5 feet. Chance of
showers and thunderstorms.

FRIDAY NIGHT
Southeast winds 25 to 30 knots. Seas 3 to 6 feet
with occasional seas up to 7 feet. Showers and thunderstorms
likely.

SATURDAY
Southeast winds 25 to 30 knots. Seas 4 to 7 feet with
occasional seas up to 8 feet. Showers and thunderstorms likely.

SATURDAY NIGHT
South winds 15 to 20 knots. Seas 3 to 6 feet
with occasional seas up to 7 feet. Showers and thunderstorms
likely.



GMZ452-230430-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
1031 AM CDT Tue Aug 22 2017

REST OF TODAY
East winds 5 to 10 knots. Seas 1 to 2 feet.
Chance of showers and thunderstorms.

TONIGHT
Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Slight chance of showers and thunderstorms.

WEDNESDAY
East winds 5 to 10 knots. Seas 1 to 2 feet. Chance
of showers and thunderstorms.

WEDNESDAY NIGHT
Southeast winds up to 5 knots becoming east
after midnight. Seas 1 to 2 feet. Slight chance of showers and
thunderstorms in the evening, then chance of showers and
thunderstorms after midnight.

THURSDAY
East winds 10 to 15 knots. Seas 1 to 3 feet. Chance
of showers and thunderstorms.

THURSDAY NIGHT
East winds 15 to 20 knots. Seas 2 to 4 feet.
Chance of showers and thunderstorms.

FRIDAY
East winds 15 to 20 knots. Seas 3 to 5 feet. Chance of
showers and thunderstorms.

FRIDAY NIGHT
Southeast winds 20 to 25 knots. Seas 3 to 5 feet.
Chance of showers and thunderstorms.

SATURDAY
Southeast winds 20 to 25 knots decreasing to 10 to
15 knots in the afternoon. Seas 3 to 6 feet with occasional seas
up to 7 feet. Showers and thunderstorms likely.

SATURDAY NIGHT
Southeast winds 10 to 15 knots. Seas 3 to
6 feet with occasional seas up to 7 feet. Showers and
thunderstorms likely.



GMZ455-230430-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
1031 AM CDT Tue Aug 22 2017

REST OF TODAY
East winds 5 to 10 knots. Seas 1 foot or less.
Chance of showers and thunderstorms.

TONIGHT
Southeast winds 5 to 10 knots. Seas 1 foot or less.
Slight chance of showers and thunderstorms.

WEDNESDAY
East winds 5 to 10 knots. Seas 1 foot or less.
Chance of showers and thunderstorms.

WEDNESDAY NIGHT
Southeast winds up to 5 knots becoming
northeast after midnight. Seas 1 foot or less. Slight chance of
showers and thunderstorms in the evening, then chance of showers
and thunderstorms after midnight.

THURSDAY
East winds 5 to 10 knots. Seas 1 foot or less. Chance
of showers and thunderstorms.

THURSDAY NIGHT
East winds 15 to 20 knots. Seas 1 to 3 feet.
Chance of showers and thunderstorms.

FRIDAY
Southeast winds 15 to 20 knots. Seas 1 to 3 feet.
Chance of showers and thunderstorms.

FRIDAY NIGHT
Southeast winds 15 to 20 knots. Seas 2 to 4 feet.
Chance of showers and thunderstorms.

SATURDAY
Southeast winds 15 to 20 knots. Seas 2 to 4 feet.
Chance of showers and thunderstorms.

SATURDAY NIGHT
Southeast winds 10 to 15 knots. Seas 2 to
4 feet. Chance of showers and thunderstorms.



GMZ470-230430-
Waters from Cameron LA to High Island TX from 20 to 60 NM-
1031 AM CDT Tue Aug 22 2017

REST OF TODAY
East winds 5 to 10 knots. Seas 1 to 3 feet.
Chance of showers and thunderstorms.

TONIGHT
Southeast winds 5 to 10 knots. Seas 1 to 3 feet.
Slight chance of showers and thunderstorms through the night.

WEDNESDAY
East winds 5 to 10 knots. Seas 1 to 3 feet. Slight
chance of showers and thunderstorms in the morning, then chance
of showers and thunderstorms in the afternoon.

WEDNESDAY NIGHT
East winds 5 to 10 knots. Seas 2 to 4 feet.
Slight chance of showers and thunderstorms in the evening, then
chance of showers and thunderstorms after midnight.

THURSDAY
East winds 10 to 15 knots. Seas 3 to 5 feet. Chance
of showers and thunderstorms.

THURSDAY NIGHT
East winds 10 to 15 knots increasing to 20 to
25 knots after midnight. Seas 4 to 7 feet with occasional seas up
to 8 feet. Chance of showers and thunderstorms.

FRIDAY
Southeast winds 20 to 25 knots. Seas 6 to 10 feet with
occasional seas up to 11 feet. Chance of showers and
thunderstorms.

FRIDAY NIGHT
Southeast winds 20 to 25 knots. Seas 8 to 12 feet
with occasional seas up to 13 feet. Showers and thunderstorms
likely.

SATURDAY
South winds 20 to 25 knots. Seas 8 to 12 feet with
occasional seas up to 13 feet. Showers and thunderstorms likely.

SATURDAY NIGHT
South winds 15 to 20 knots. Seas 5 to 8 feet
with occasional seas up to 10 feet. Showers and thunderstorms
likely.



GMZ472-230430-
Waters from  Intracoastal City to Cameron LA from 20 to 60 NM-
1031 AM CDT Tue Aug 22 2017

REST OF TODAY
East winds 5 to 10 knots. Seas 1 to 3 feet.
Chance of showers and thunderstorms.

TONIGHT
Southeast winds 5 to 10 knots. Seas 1 to 3 feet.
Slight chance of showers and thunderstorms.

WEDNESDAY
East winds 5 to 10 knots. Seas 2 to 4 feet. Slight
chance of showers and thunderstorms in the morning, then chance
of showers and thunderstorms in the afternoon.

WEDNESDAY NIGHT
East winds 5 to 10 knots. Seas 2 to 4 feet.
Slight chance of showers and thunderstorms in the evening, then
chance of showers and thunderstorms after midnight.

THURSDAY
East winds 10 to 15 knots. Seas 3 to 5 feet. Chance
of showers and thunderstorms.

THURSDAY NIGHT
East winds 10 to 15 knots increasing to 20 to
25 knots after midnight. Seas 5 to 8 feet with occasional seas up
to 10 feet. Chance of showers and thunderstorms.

FRIDAY
Southeast winds 20 to 25 knots. Seas 6 to 10 feet with
occasional seas up to 11 feet. Chance of showers and
thunderstorms.

FRIDAY NIGHT
Southeast winds 20 to 25 knots. Seas 6 to 10 feet
with occasional seas up to 11 feet. Chance of showers and
thunderstorms.

SATURDAY
Southeast winds 20 to 25 knots with gusts to around
40 knots decreasing to 10 to 15 knots in the afternoon. Seas 6 to
10 feet with occasional seas up to 11 feet. Showers and
thunderstorms likely.

SATURDAY NIGHT
Southeast winds 15 to 20 knots. Seas 5 to
8 feet with occasional seas up to 10 feet. Showers and
thunderstorms likely.



GMZ475-230430-
Waters from Lower Atchafalaya River to Intracoastal City LA from
20 to 60 NM-
1031 AM CDT Tue Aug 22 2017

REST OF TODAY
East winds 5 to 10 knots. Seas 1 to 3 feet.
Chance of showers and thunderstorms late in the morning, then
slight chance of showers and thunderstorms in the afternoon.

TONIGHT
Southeast winds 5 to 10 knots. Seas 2 to 4 feet.
Slight chance of showers and thunderstorms.

WEDNESDAY
East winds 5 to 10 knots. Seas 2 to 4 feet. Slight
chance of showers and thunderstorms in the morning, then chance
of showers and thunderstorms in the afternoon.

WEDNESDAY NIGHT
East winds 5 to 10 knots. Seas 2 to 4 feet.
Slight chance of showers and thunderstorms in the evening, then
chance of showers and thunderstorms after midnight.

THURSDAY
East winds 10 to 15 knots. Seas 3 to 5 feet. Chance
of showers and thunderstorms.

THURSDAY NIGHT
East winds 15 to 20 knots. Seas 5 to 8 feet
with occasional seas up to 10 feet. Chance of showers and
thunderstorms.

FRIDAY
Southeast winds 15 to 20 knots. Seas 5 to 8 feet with
occasional seas up to 10 feet. Chance of showers and
thunderstorms.

FRIDAY NIGHT
Southeast winds 15 to 20 knots. Seas 5 to 8 feet
with occasional seas up to 10 feet. Chance of showers and
thunderstorms.

SATURDAY
Southeast winds 15 to 20 knots. Seas 4 to 7 feet with
occasional seas up to 8 feet. Chance of showers and
thunderstorms.

SATURDAY NIGHT
Southeast winds 10 to 15 knots. Seas 4 to
7 feet with occasional seas up to 8 feet. Chance of showers and
thunderstorms.



13