Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 201528
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
928 AM CST Tue Feb 20 2018

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.

GMZ400-210315-
Synopsis for Lower Atchafalaya River LA to High Island TX out
60 NM including Sabine and Calcasieu Lakes and Vermilion Bay
928 AM CST Tue Feb 20 2018

.SYNOPSIS...
Tight pressure gradient across the region will persist today with
a surface low over the Plains and high pressure just off the
Atlantic coast. The result will be moderate and gusty south winds.
With warm moist air moving over relatively cooler Gulf shelf
water, there will be the potential for at-least patchy sea fog
through Wednesday morning over the near shore waters. A cold front
will near the coastal waters late Wednesday into Thursday with
south winds decreasing slightly as the pressure gradient relaxes.
The front will also bring a chance for showers and a few
thunderstorms.

$$

GMZ430-210315-
Sabine Lake-
928 AM CST Tue Feb 20 2018

.REST OF TODAY...Southeast winds around 15 knots. Lake waters
choppy. Patchy fog late in the morning. Slight chance of showers
late in the morning, then chance of showers and slight chance of
thunderstorms in the afternoon.
.TONIGHT...South winds 10 to 15 knots. Lake waters choppy. Chance
of showers and slight chance of thunderstorms.
.WEDNESDAY...South winds 10 to 15 knots. Lake waters choppy.
Patchy fog. Showers and thunderstorms.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Lake waters
choppy. Patchy fog. Showers and thunderstorms likely.
.THURSDAY...Southeast winds 5 to 10 knots. Lake waters a light
chop. Patchy fog. Chance of showers and slight chance of
thunderstorms.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters a
light chop. Patchy fog. Slight chance of showers.
.FRIDAY...South winds 5 to 10 knots. Lake waters a light chop.
Chance of showers and slight chance of thunderstorms.
.FRIDAY NIGHT...South winds around 10 knots. Lake waters a light
chop. Slight chance of showers.
.SATURDAY...South winds 10 to 15 knots. Lake waters choppy.
Chance of showers and slight chance of thunderstorms.
.SATURDAY NIGHT...Southwest winds around 10 knots becoming north
after midnight. Lake waters a light chop. Chance of rain showers
and slight chance of thunderstorms.

$$

GMZ432-210315-
Calcasieu Lake-
928 AM CST Tue Feb 20 2018

.REST OF TODAY...Southeast winds around 15 knots. Lake waters
choppy. Patchy fog late in the morning. Slight chance of showers
through the day.
.TONIGHT...Southeast winds 10 to 15 knots. Lake waters choppy.
Chance of showers and slight chance of thunderstorms.
.WEDNESDAY...South winds 10 to 15 knots. Lake waters choppy.
Patchy fog. Showers and thunderstorms.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Lake waters
choppy. Patchy fog. Showers and thunderstorms likely.
.THURSDAY...Southeast winds 5 to 10 knots. Lake waters a light
chop. Patchy fog. Chance of showers and slight chance of
thunderstorms.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters a
light chop. Patchy fog. Slight chance of showers.
.FRIDAY...South winds 5 to 10 knots. Lake waters a light chop.
Chance of showers and slight chance of thunderstorms.
.FRIDAY NIGHT...South winds around 10 knots. Lake waters a light
chop. Slight chance of showers.
.SATURDAY...South winds 10 to 15 knots. Lake waters choppy.
Chance of showers and slight chance of thunderstorms.
.SATURDAY NIGHT...Southwest winds around 10 knots becoming
northwest after midnight. Lake waters a light chop. Chance of
showers and slight chance of thunderstorms.

$$

GMZ435-210315-
Vermilion Bay-
928 AM CST Tue Feb 20 2018

.REST OF TODAY...Southeast winds 10 to 15 knots. Bay waters
choppy. Patchy fog late in the morning. Slight chance of showers
through the day.
.TONIGHT...Southeast winds 10 to 15 knots. Bay waters choppy.
Patchy fog. Slight chance of showers.
.WEDNESDAY...Southeast winds 10 to 15 knots. Bay waters choppy.
Patchy fog. Chance of showers and thunderstorms.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Bay waters choppy.
Patchy fog. Chance of showers and thunderstorms.
.THURSDAY...Southeast winds 10 to 15 knots. Bay waters choppy.
Patchy fog. Chance of showers and slight chance of thunderstorms.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters a
light chop. Patchy fog. Slight chance of showers.
.FRIDAY...Southeast winds 5 to 10 knots. Bay waters a light chop.
Chance of showers and slight chance of thunderstorms.
.FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters a light
chop. Slight chance of showers.
.SATURDAY...South winds 10 to 15 knots. Bay waters choppy. Chance
of showers and slight chance of thunderstorms.
.SATURDAY NIGHT...South winds around 10 knots becoming west after
midnight. Bay waters a light chop. Chance of showers and slight
chance of thunderstorms.

$$

GMZ450-210315-
Coastal waters from Cameron LA to High Island TX out 20 NM-
928 AM CST Tue Feb 20 2018

.REST OF TODAY...Southeast winds around 15 knots. Seas 2 to
4 feet. Patchy fog late in the morning. Slight chance of showers
through the day.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Patchy fog. Chance of showers and slight chance of thunderstorms.
.WEDNESDAY...South winds 15 to 20 knots. Seas 2 to 4 feet. Patchy
fog. Showers and thunderstorms likely.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.
Patchy fog. Showers and thunderstorms likely.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 1 to 3 feet.
Patchy fog. Chance of showers and slight chance of thunderstorms.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 1 to
3 feet. Patchy fog. Slight chance of showers.
.FRIDAY...Southeast winds around 10 knots. Seas 1 to 3 feet.
Chance of showers and slight chance of thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.
Slight chance of showers.
.SATURDAY...South winds 10 to 15 knots. Seas 2 to 4 feet. Slight
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southwest winds around 10 knots becoming north
after midnight. Seas 1 to 3 feet. Chance of rain showers and
slight chance of thunderstorms.

$$

GMZ452-210315-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
928 AM CST Tue Feb 20 2018

.REST OF TODAY...Southeast winds 10 to 15 knots. Seas 2 to
4 feet. Patchy fog late in the morning. Slight chance of showers
through the day.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Patchy fog. Slight chance of showers and thunderstorms.
.WEDNESDAY...Southeast winds 15 to 20 knots. Seas 3 to 5 feet.
Patchy fog. Showers and thunderstorms likely.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.
Patchy fog. Chance of showers and thunderstorms.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 1 to 3 feet.
Patchy fog. Chance of showers and slight chance of thunderstorms.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas 1 to
3 feet. Patchy fog. Slight chance of showers.
.FRIDAY...Southeast winds around 10 knots. Seas 1 to 3 feet.
Slight chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds around 10 knots. Seas 1 to 3 feet.
Slight chance of showers.
.SATURDAY...South winds 10 to 15 knots. Seas 2 to 4 feet. Slight
chance of showers and thunderstorms.
.SATURDAY NIGHT...South winds 10 to 15 knots becoming west after
midnight. Seas 2 to 4 feet. Chance of showers and slight chance
of thunderstorms.

$$

GMZ455-210315-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
928 AM CST Tue Feb 20 2018

.REST OF TODAY...Southeast winds 10 to 15 knots. Seas 1 to
3 feet. Patchy fog late in the morning. Slight chance of showers
through the day.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 1 to 3 feet.
Patchy fog. Slight chance of showers.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Patchy fog. Chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 1 to
3 feet. Patchy fog. Chance of showers and thunderstorms.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 1 to 3 feet.
Patchy fog. Slight chance of showers and thunderstorms.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to
3 feet. Patchy fog. Slight chance of showers.
.FRIDAY...Southeast winds 5 to 10 knots. Seas 1 to 3 feet. Chance
of showers and slight chance of thunderstorms.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas 1 to
3 feet. Slight chance of showers.
.SATURDAY...South winds 10 to 15 knots. Seas 1 to 3 feet. Slight
chance of showers and thunderstorms.
.SATURDAY NIGHT...South winds 10 to 15 knots becoming west after
midnight. Seas 1 to 3 feet. Chance of showers and slight chance
of thunderstorms.

$$

GMZ470-210315-
Waters from Cameron LA to High Island TX from 20 to 60 NM-
928 AM CST Tue Feb 20 2018

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 6 PM CST THIS
EVENING...

.REST OF TODAY...Southeast winds 15 to 20 knots. Seas 3 to 6 feet
with occasional seas up to 7 feet. Slight chance of showers.
.TONIGHT...Southeast winds around 15 knots. Seas 3 to 6 feet with
occasional seas up to 7 feet. Slight chance of showers and
thunderstorms.
.WEDNESDAY...South winds 15 to 20 knots. Seas 3 to 6 feet with
occasional seas up to 7 feet. Showers and thunderstorms likely.
.WEDNESDAY NIGHT...South winds 15 to 20 knots becoming southeast
around 10 knots after midnight. Seas 3 to 6 feet with occasional
seas up to 7 feet. Chance of showers and thunderstorms.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet.
Chance of showers and slight chance of thunderstorms.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
5 feet. Slight chance of showers.
.FRIDAY...Southeast winds around 10 knots. Seas 3 to 5 feet.
Slight chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 5 feet.
Slight chance of showers.
.SATURDAY...South winds 10 to 15 knots. Seas 3 to 5 feet. Slight
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots becoming
northwest after midnight. Seas 3 to 5 feet. Chance of showers and
slight chance of thunderstorms.

$$

GMZ472-210315-
Waters from  Intracoastal City to Cameron LA from 20 to 60 NM-
928 AM CST Tue Feb 20 2018

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 6 PM CST THIS
EVENING...

.REST OF TODAY...Southeast winds 15 to 20 knots. Seas 3 to
6 feet. Slight chance of showers.
.TONIGHT...Southeast winds 15 to 20 knots. Seas 3 to 6 feet with
occasional seas up to 7 feet. Slight chance of showers.
.WEDNESDAY...Southeast winds 15 to 20 knots. Seas 3 to 6 feet
with occasional seas up to 7 feet. Chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
6 feet with occasional seas up to 7 feet. Chance of showers and
thunderstorms.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet.
Chance of showers and slight chance of thunderstorms.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
5 feet. Slight chance of showers.
.FRIDAY...Southeast winds around 10 knots. Seas 3 to 5 feet.
Slight chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 5 feet.
Slight chance of showers.
.SATURDAY...South winds 10 to 15 knots. Seas 3 to 6 feet with
occasional seas up to 7 feet. Slight chance of showers and
thunderstorms.
.SATURDAY NIGHT...South winds 10 to 15 knots becoming west after
midnight. Seas 3 to 6 feet with occasional seas up to 7 feet.
Chance of showers and slight chance of thunderstorms.

$$

GMZ475-210315-
Waters from Lower Atchafalaya River to Intracoastal City LA from
20 to 60 NM-
928 AM CST Tue Feb 20 2018

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 6 PM CST THIS
EVENING...

.REST OF TODAY...Southeast winds 15 to 20 knots. Seas 3 to 6 feet
with occasional seas up to 7 feet. Slight chance of showers.
.TONIGHT...Southeast winds 15 to 20 knots. Seas 3 to 6 feet with
occasional seas up to 7 feet. Slight chance of showers.
.WEDNESDAY...Southeast winds 15 to 20 knots. Seas 3 to 6 feet
with occasional seas up to 7 feet. Chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
6 feet with occasional seas up to 7 feet. Slight chance of
showers and thunderstorms.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet.
Slight chance of showers and thunderstorms.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
5 feet. Slight chance of showers.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet.
Slight chance of showers and thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 5 feet.
Slight chance of showers.
.SATURDAY...South winds 10 to 15 knots. Seas 3 to 6 feet with
occasional seas up to 7 feet. Slight chance of showers and
thunderstorms.
.SATURDAY NIGHT...South winds 10 to 15 knots becoming west after
midnight. Seas 3 to 6 feet with occasional seas up to 7 feet.
Chance of showers and slight chance of thunderstorms.

$$



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