Coastal Waters Forecast
Issued by NWS Lake Charles, LA

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FZUS54 KLCH 170330
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
930 PM CST Sat Dec 16 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.

GMZ400-171615-
Synopsis for Lower Atchafalaya River LA to High Island TX out
60 NM including Sabine and Calcasieu Lakes and Vermilion Bay
930 PM CST Sat Dec 16 2017

.SYNOPSIS...
An upper trough will approach the area tonight resulting in
widespread showers and thunderstorms. East winds will continue to
increase this evening through early Sunday morning over the
coastal waters as an area of low pressure moves up the Texas
coast. Winds will peak from the southeast this evening through
early Sunday morning, then begin to diminish from west to east as
the low moves northeast of the area. The south winds will aid in
transporting very moist air northward atop relatively cool
nearshore shelf waters, so there is some potential for marine fog
starting late tonight and possibly persisting for a few days. Rain
chances will continue to start the new work week as another upper
trof slowly approaches the area from the west.

$$

GMZ430-171615-
Sabine Lake-
930 PM CST Sat Dec 16 2017

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 3 AM CST SUNDAY...

.REST OF TONIGHT...East winds 15 to 20 knots becoming north after
midnight. Lake waters rough. Chance of rain showers late in the
evening, then rain showers and isolated thunderstorms after
midnight. Patchy fog after midnight.
.SUNDAY...North winds around 5 knots becoming east up to 5 knots
in the afternoon. Lake waters smooth. Slight chance of rain
showers in the morning.
.SUNDAY NIGHT...Northeast winds up to 5 knots. Lake waters
smooth. Slight chance of rain showers in the evening. Slight
chance of thunderstorms through the night. Chance of rain showers
after midnight.
.MONDAY...East winds around 5 knots. Lake waters smooth. Rain
showers likely in the morning. Slight chance of thunderstorms
through the day. Chance of rain showers in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters a
light chop. Chance of thunderstorms in the evening. Chance of
showers through the night. Slight chance of thunderstorms after
midnight.
.TUESDAY...South winds 5 to 10 knots. Lake waters a light chop.
Chance of showers and slight chance of thunderstorms.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters a
light chop. Showers likely and slight chance of thunderstorms.
.WEDNESDAY...West winds 5 to 10 knots. Lake waters a light chop.
Slight chance of showers.
.WEDNESDAY NIGHT...Southwest winds around 5 knots becoming south
up to 5 knots after midnight. Lake waters smooth.
.THURSDAY...Southeast winds 5 to 10 knots. Lake waters a light
chop. Slight chance of rain showers.
.THURSDAY NIGHT...South winds 5 to 10 knots. Lake waters a light
chop. Chance of rain showers.

$$

GMZ432-171615-
Calcasieu Lake-
930 PM CST Sat Dec 16 2017

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 3 AM CST SUNDAY...

.REST OF TONIGHT...East winds 15 to 20 knots becoming south after
midnight. Lake waters rough. Chance of rain showers late in the
evening, then rain showers and isolated thunderstorms after
midnight. Patchy fog after midnight.
.SUNDAY...North winds around 5 knots becoming east in the
afternoon. Lake waters smooth. Patchy fog in the morning. Chance
of rain showers and isolated thunderstorms in the morning.
.SUNDAY NIGHT...East winds around 5 knots. Lake waters smooth.
Chance of showers and slight chance of thunderstorms.
.MONDAY...East winds around 5 knots. Lake waters smooth. Showers
likely in the morning. Slight chance of thunderstorms through the
day. Chance of showers in the afternoon.
.MONDAY NIGHT...Southeast winds around 5 knots. Lake waters
smooth. Chance of showers and thunderstorms.
.TUESDAY...South winds 5 to 10 knots. Lake waters a light chop.
Chance of showers and slight chance of thunderstorms.
.TUESDAY NIGHT...Southwest winds around 10 knots. Lake waters a
light chop. Showers likely and slight chance of thunderstorms.
.WEDNESDAY...West winds 5 to 10 knots. Lake waters a light chop.
Slight chance of showers.
.WEDNESDAY NIGHT...South winds up to 5 knots. Lake waters smooth.
.THURSDAY...Southeast winds 5 to 10 knots. Lake waters a light
chop. Slight chance of rain showers.
.THURSDAY NIGHT...South winds 5 to 10 knots. Lake waters a light
chop. Chance of rain showers.

$$

GMZ435-171615-
Vermilion Bay-
930 PM CST Sat Dec 16 2017

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 3 AM CST SUNDAY...

.REST OF TONIGHT...Southeast winds 15 to 20 knots. Bay waters
rough. Chance of rain showers late in the evening, then rain
showers and isolated thunderstorms after midnight. Patchy fog
after midnight.
.SUNDAY...South winds 5 to 10 knots. Bay waters a light chop.
Patchy fog through the day. Showers and isolated thunderstorms in
the morning. Chance of showers and slight chance of thunderstorms
in the afternoon.
.SUNDAY NIGHT...Southeast winds around 5 knots. Bay waters
smooth. Slight chance of showers in the evening. Slight chance of
thunderstorms through the night. Chance of showers after
midnight. Patchy fog after midnight.
.MONDAY...East winds around 5 knots. Bay waters smooth. Showers
likely and slight chance of thunderstorms in the morning, then
chance of showers and thunderstorms in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters a light
chop. Slight chance of showers in the evening. Slight chance of
thunderstorms through the night. Chance of showers after
midnight.
.TUESDAY...South winds 5 to 10 knots. Bay waters a light chop.
Chance of showers and slight chance of thunderstorms.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters a
light chop. Showers likely and slight chance of thunderstorms.
.WEDNESDAY...West winds 5 to 10 knots. Bay waters a light chop.
Chance of showers.
.WEDNESDAY NIGHT...Southwest winds up to 5 knots. Bay waters
smooth.
.THURSDAY...Southeast winds 5 to 10 knots. Bay waters a light
chop. Slight chance of rain showers.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters a light
chop. Slight chance of rain showers.

$$

GMZ450-171615-
Coastal waters from Cameron LA to High Island TX out 20 NM-
930 PM CST Sat Dec 16 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM CST SUNDAY...

.REST OF TONIGHT...East winds 20 to 25 knots becoming southwest
after midnight. Seas 3 to 6 feet with occasional seas up to
7 feet. Chance of rain showers late in the evening, then rain
showers and isolated thunderstorms after midnight. Patchy fog
after midnight.
.SUNDAY...North winds 5 to 10 knots becoming east in the
afternoon. Seas 1 to 3 feet. Patchy fog in the morning. Chance of
rain showers and isolated thunderstorms in the morning, then
slight chance of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or
less. Chance of showers and slight chance of thunderstorms
through the night. Patchy fog after midnight.
.MONDAY...East winds 5 to 10 knots. Seas 1 foot or less. Showers
likely in the morning. Slight chance of thunderstorms through the
day. Chance of showers in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Chance of thunderstorms in the evening. Chance of showers through
the night. Slight chance of thunderstorms after midnight.
.TUESDAY...South winds 5 to 10 knots. Seas 1 to 3 feet. Chance of
showers and slight chance of thunderstorms.
.TUESDAY NIGHT...Southwest winds 10 to 15 knots. Seas 1 to
3 feet. Showers likely and slight chance of thunderstorms.
.WEDNESDAY...West winds 5 to 10 knots. Seas 1 to 3 feet. Slight
chance of showers.
.WEDNESDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or
less.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Slight chance of rain showers.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 1 to 3 feet.
Chance of rain showers.

$$

GMZ452-171615-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
930 PM CST Sat Dec 16 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM CST SUNDAY...

.REST OF TONIGHT...Southeast winds 20 to 25 knots. Seas 3 to
6 feet with occasional seas up to 7 feet. Chance of rain showers
late in the evening, then rain showers and isolated thunderstorms
after midnight. Patchy fog after midnight.
.SUNDAY...Northwest winds 10 to 15 knots becoming northeast
around 5 knots in the afternoon. Seas 1 to 3 feet. Patchy fog
through the day. Showers and isolated thunderstorms in the
morning. Chance of showers and slight chance of thunderstorms in
the afternoon.
.SUNDAY NIGHT...East winds around 5 knots. Seas 1 to 3 feet.
Patchy fog through the night. Slight chance of showers in the
evening. Slight chance of thunderstorms through the night.
Showers likely after midnight.
.MONDAY...East winds 5 to 10 knots. Seas 1 to 3 feet. Showers
likely and slight chance of thunderstorms in the morning, then
chance of showers and thunderstorms in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. Slight chance of showers and thunderstorms in the evening,
then chance of showers and thunderstorms after midnight.
.TUESDAY...South winds 5 to 10 knots. Seas 1 to 2 feet. Chance of
showers and slight chance of thunderstorms.
.TUESDAY NIGHT...Southwest winds 10 to 15 knots. Seas 1 to
3 feet. Showers likely and slight chance of thunderstorms.
.WEDNESDAY...West winds 10 to 15 knots. Seas 2 to 4 feet. Chance
of showers.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Slight chance of rain showers.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 1 foot or
less. Slight chance of rain showers.

$$

GMZ455-171615-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
930 PM CST Sat Dec 16 2017

...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 3 AM CST SUNDAY...

.REST OF TONIGHT...Southeast winds 15 to 20 knots. Seas 2 to
4 feet. Chance of rain showers through the night. Isolated
thunderstorms after midnight. Patchy fog after midnight.
.SUNDAY...South winds 10 to 15 knots. Seas 1 to 3 feet. Patchy
fog through the day. Showers and isolated thunderstorms in the
morning. Chance of showers and slight chance of thunderstorms in
the afternoon.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 3 feet.
Patchy fog through the night. Slight chance of thunderstorms in
the evening. Chance of showers through the night. Chance of
thunderstorms after midnight.
.MONDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Chance of showers and thunderstorms.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. Slight chance of showers and thunderstorms.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Slight chance of showers and thunderstorms.
.TUESDAY NIGHT...Southwest winds 10 to 15 knots. Seas 1 to
3 feet. Showers likely and slight chance of thunderstorms.
.WEDNESDAY...West winds 10 to 15 knots. Seas 1 to 3 feet. Chance
of showers.
.WEDNESDAY NIGHT...West winds 5 to 10 knots becoming north after
midnight. Seas 1 foot or less.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Slight chance of rain showers.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less.
Slight chance of rain showers.

$$

GMZ470-171615-
Waters from Cameron LA to High Island TX from 20 to 60 NM-
930 PM CST Sat Dec 16 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM CST SUNDAY...

.REST OF TONIGHT...Southeast winds 20 to 25 knots becoming
southwest after midnight. Seas 5 to 8 feet with occasional seas
up to 10 feet. Chance of showers late in the evening, then
showers and isolated thunderstorms after midnight.
.SUNDAY...Northeast winds 5 to 10 knots. Seas 3 to 5 feet. Chance
of showers and isolated thunderstorms in the morning, then slight
chance of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet.
Chance of showers in the evening. Slight chance of thunderstorms
through the night. Showers likely after midnight.
.MONDAY...East winds 5 to 10 knots. Seas 2 to 4 feet. Showers
likely and slight chance of thunderstorms in the morning, then
chance of showers and thunderstorms in the afternoon.
.MONDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
4 feet. Slight chance of showers and thunderstorms in the
evening, then chance of showers and thunderstorms after midnight.
.TUESDAY...South winds 10 to 15 knots. Seas 2 to 4 feet. Chance
of showers and slight chance of thunderstorms.
.TUESDAY NIGHT...Southwest winds 10 to 15 knots. Seas 3 to
5 feet. Showers likely and slight chance of thunderstorms.
.WEDNESDAY...West winds 10 to 15 knots. Seas 2 to 4 feet. Slight
chance of showers.
.WEDNESDAY NIGHT...Southwest winds around 5 knots. Seas 1 to
3 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 1 to 3 feet.
Slight chance of showers.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.
Slight chance of showers.

$$

GMZ472-171615-
Waters from  Intracoastal City to Cameron LA from 20 to 60 NM-
930 PM CST Sat Dec 16 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM CST SUNDAY...

.REST OF TONIGHT...Southeast winds 20 to 25 knots. Seas 4 to
7 feet with occasional seas up to 8 feet. Chance of showers late
in the evening, then showers and isolated thunderstorms after
midnight.
.SUNDAY...Northwest winds 10 to 15 knots becoming northeast
around 5 knots in the afternoon. Seas 3 to 5 feet. Showers and
isolated thunderstorms in the morning, then chance of showers and
slight chance of thunderstorms in the afternoon.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 4 feet.
Slight chance of thunderstorms in the evening. Chance of showers
through the night. Chance of thunderstorms after midnight. Patchy
fog after midnight.
.MONDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Chance
of showers and thunderstorms.
.MONDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
4 feet. Slight chance of showers and thunderstorms.
.TUESDAY...South winds around 10 knots. Seas 2 to 4 feet. Slight
chance of showers and thunderstorms.
.TUESDAY NIGHT...Southwest winds 10 to 15 knots. Seas 3 to
5 feet. Showers likely and slight chance of thunderstorms.
.WEDNESDAY...West winds 10 to 15 knots. Seas 3 to 5 feet. Chance
of showers.
.WEDNESDAY NIGHT...West winds 5 to 10 knots becoming southwest
after midnight. Seas 2 to 4 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 1 to 3 feet.
Slight chance of showers.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.
Slight chance of showers.

$$

GMZ475-171615-
Waters from Lower Atchafalaya River to Intracoastal City LA from
20 to 60 NM-
930 PM CST Sat Dec 16 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM CST SUNDAY...

.REST OF TONIGHT...Southeast winds 15 to 20 knots. Seas 3 to
6 feet with occasional seas up to 7 feet. Chance of showers late
in the evening, then slight chance of showers and isolated
thunderstorms after midnight.
.SUNDAY...South winds 10 to 15 knots becoming east in the
afternoon. Seas 3 to 5 feet. Isolated thunderstorms in the
morning. Showers through the day. Slight chance of thunderstorms
in the afternoon.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to 5 feet.
Slight chance of thunderstorms in the evening. Chance of showers
through the night. Chance of thunderstorms after midnight. Patchy
fog after midnight.
.MONDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Chance
of showers and thunderstorms.
.MONDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
4 feet. Slight chance of showers and thunderstorms.
.TUESDAY...South winds around 10 knots. Seas 2 to 4 feet. Slight
chance of showers and thunderstorms.
.TUESDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to
4 feet. Showers and thunderstorms likely.
.WEDNESDAY...West winds 10 to 15 knots. Seas 3 to 5 feet. Chance
of showers and slight chance of thunderstorms.
.WEDNESDAY NIGHT...West winds 5 to 10 knots becoming north after
midnight. Seas 2 to 4 feet. Slight chance of showers.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Slight chance of showers.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 1 to 3 feet.
Slight chance of showers.

$$

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