Coastal Waters Forecast
Issued by NWS New Orleans/Baton Rouge, LA

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FZUS54 KLIX 210820
CWFLIX

Coastal Waters Forecast
National Weather Service New Orleans LA
320 AM CDT Sun Apr 21 2019

Pascagoula to Atchafalaya River Out to 60 mile

Seas are provided as a range of the average height of the highest 1/3
of the waves...along with the occasional height of the average highest
ten percent of the waves.

GMZ500-GMZ501-212115-
Synopsis Pascagoula to SW Pass Mississippi-
Synopsis SW Pass Mississippi River to Atchafalaya River-
320 AM CDT Sun Apr 21 2019

.SYNOPSIS...

Surface high pressure will build across the region early this
morning, and steadily drift north and east of the northern Gulf
coast later this afternoon. As a response, winds will transition
to E to eventual SE later today, with an onshore flow expected
through mid/late week. The next storm system arrives on Thursday
as a cold front and associated showers/storms, some of which may
be strong to possibly severe with gusty, erratic winds. Conditions
improve by Friday through the weekend with a offshore flow
developing after the passage of the cold front.

$$

GMZ534-212115-
Lake Borgne-
320 AM CDT Sun Apr 21 2019

.TODAY...Southeast winds 5 to 10 knots. Waves 1 foot or less.
Dominant period 4 seconds.
.TONIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or less.
Dominant period 4 seconds.
.MONDAY...Southeast winds 5 to 10 knots. Waves 1 to 2 feet.
Dominant period 4 seconds.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or
less. Dominant period 4 seconds.
.TUESDAY...Southeast winds 5 to 10 knots. Waves 1 to 2 feet.
Dominant period 4 seconds.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or
less. Dominant period 4 seconds.
.WEDNESDAY...Southeast winds 10 to 15 knots. Waves 1 to 2 feet.
Dominant period 4 seconds.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Waves 1 to
2 feet. Dominant period 4 seconds. Slight chance of showers after
midnight.
.THURSDAY...South winds 10 to 15 knots. Waves 1 to 2 feet.
Dominant period 4 seconds. Chance of showers and thunderstorms in
the morning, then showers and thunderstorms likely in the
afternoon.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Waves 1 to
2 feet. Dominant period 4 seconds. Chance of thunderstorms in the
evening. Chance of showers through the night.

$$

GMZ532-212115-
Mississippi Sound-
320 AM CDT Sun Apr 21 2019

.TODAY...East winds near 5 knots becoming south in the late
morning and afternoon. Waves 1 to 2 feet. Dominant period
4 seconds.
.TONIGHT...South winds 5 to 10 knots. Waves 1 to 2 feet. Dominant
period 4 seconds.
.MONDAY...Southeast winds 10 to 15 knots. Waves 1 to 2 feet.
Dominant period 4 seconds.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 to 2 feet.
Dominant period 4 seconds.
.TUESDAY...Southeast winds 5 to 10 knots. Waves 1 to 2 feet.
Dominant period 4 seconds.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 to
2 feet. Dominant period 4 seconds.
.WEDNESDAY...Southeast winds 10 to 15 knots. Waves 1 to 2 feet.
Dominant period 4 seconds.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Waves 1 to
2 feet. Dominant period 4 seconds. Slight chance of showers after
midnight.
.THURSDAY...South winds 10 to 15 knots. Waves 2 to 4 feet.
Dominant period 4 seconds. Chance of showers and thunderstorms in
the morning, then showers and thunderstorms likely in the
afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots becoming west 5 to
10 knots after midnight. Waves 2 to 4 feet. Dominant period
4 seconds. Showers and thunderstorms likely in the evening, then
chance of showers after midnight.

$$

GMZ536-538-212115-
Chandeleur Sound-Breton Sound-
320 AM CDT Sun Apr 21 2019

.TODAY...Southeast winds 5 to 10 knots. Waves 1 foot or less.
Dominant period 4 seconds.
.TONIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or less.
Dominant period 4 seconds.
.MONDAY...Southeast winds 10 to 15 knots. Waves 1 to 2 feet.
Dominant period 4 seconds.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 to 2 feet.
Dominant period 4 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Waves 1 to 2 feet.
Dominant period 4 seconds.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Waves 1 to
2 feet. Dominant period 4 seconds.
.WEDNESDAY...Southeast winds 10 to 15 knots. Waves 2 to 4 feet.
Dominant period 4 seconds.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Waves 2 to
4 feet. Dominant period 4 seconds.
.THURSDAY...South winds 15 to 20 knots. Waves 2 to 4 feet.
Dominant period 4 seconds. Chance of showers and thunderstorms in
the morning, then showers and thunderstorms likely in the
afternoon.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Waves 2 to
4 feet. Dominant period 4 seconds. Chance of thunderstorms in the
evening. Chance of showers through the night.

$$

GMZ555-557-212115-
Coastal Waters from Boothville LA to Southwest Pass of the
Mississippi River out 20 nm-
Coastal waters from Pascagoula Mississippi to Stake Island out
20 mile-
320 AM CDT Sun Apr 21 2019

.TODAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Dominant period 8 seconds.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Dominant period 7 seconds.
.MONDAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Dominant period 4 seconds.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Dominant period 4 seconds.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Dominant period 4 seconds.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Dominant period 5 seconds.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 1 to 2 feet.
Dominant period 5 seconds.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
4 feet. Dominant period 6 seconds.
.THURSDAY...South winds 10 to 15 knots. Seas 2 to 4 feet.
Dominant period 6 seconds. Chance of showers and thunderstorms in
the morning, then showers and thunderstorms likely in the
afternoon.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to
4 feet. Dominant period 6 seconds. Showers and thunderstorms
likely in the evening, then chance of showers after midnight.

$$

GMZ550-552-212115-
Coastal Waters from Port Fourchon LA to Lower Atchafalaya River
LA out 20 nm-
Coastal waters from the Southwest Pass of the Mississippi River
to Port Fourchon Louisiana out 20 mile-
320 AM CDT Sun Apr 21 2019

.TODAY...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.
Dominant period 4 seconds.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 1 to 2 feet.
Dominant period 4 seconds.
.MONDAY...Southeast winds 10 to 15 knots. Seas 1 to 2 feet.
Dominant period 4 seconds.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Dominant period 4 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Dominant period 5 seconds.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
4 feet. Dominant period 5 seconds.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Dominant period 6 seconds.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
4 feet. Dominant period 6 seconds. Slight chance of showers after
midnight.
.THURSDAY...South winds 10 to 15 knots. Seas 3 to 5 feet.
Dominant period 6 seconds. Chance of showers and thunderstorms in
the morning, then showers and thunderstorms likely in the
afternoon.
.THURSDAY NIGHT...West winds 10 to 15 knots. Seas 3 to 5 feet.
Dominant period 6 seconds. Chance of thunderstorms in the
evening. Chance of showers through the night.

$$

GMZ575-577-212115-
Coastal Waters from Stake Island LA to Southwest Pass of the
Mississippi River from 20 to 60 nm-
Coastal waters from Pascagoula Mississippi to Stake Island
Louisiana out 20 to 60 mile-
320 AM CDT Sun Apr 21 2019

.TODAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet.
Dominant period 5 seconds.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less.
Dominant period 7 seconds.
.MONDAY...Southeast winds 10 to 15 knots. Seas 1 to 2 feet.
Dominant period 4 seconds.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 1 to 2 feet.
Dominant period 4 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 1 to 2 feet.
Dominant period 4 seconds.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
4 feet. Dominant period 5 seconds.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Dominant period 5 seconds.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
4 feet. Dominant period 5 seconds.
.THURSDAY...South winds 10 to 15 knots. Seas 3 to 5 feet.
Dominant period 6 seconds. Chance of showers and thunderstorms.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas 3 to
5 feet. Dominant period 6 seconds. Chance of thunderstorms in the
evening. Chance of showers through the night.

$$

GMZ570-572-212115-
Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya
River LA from 20 to 60 mile-
Coastal waters from Southwest Pass of the Mississippi River to
Port Fourchon Louisiana from 20 to 60 mile-
320 AM CDT Sun Apr 21 2019

.TODAY...Southeast winds near 10 knots. Seas 1 to 2 feet.
Dominant period 5 seconds.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 1 to 2 feet.
Dominant period 4 seconds.
.MONDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Dominant period 4 seconds.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Dominant period 5 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Dominant period 5 seconds.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
4 feet. Dominant period 6 seconds.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Dominant period 6 seconds.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
5 feet. Dominant period 6 seconds. Slight chance of showers after
midnight.
.THURSDAY...South winds 10 to 15 knots. Seas 3 to 5 feet.
Dominant period 6 seconds. Chance of showers and thunderstorms in
the morning, then showers and thunderstorms likely in the
afternoon.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas 3 to
5 feet. Dominant period 7 seconds. Chance of thunderstorms in the
evening. Chance of showers through the night.

$$

GMZ530-212115-
Lake Pontchartrain and Lake Maurepas-
320 AM CDT Sun Apr 21 2019

.TODAY...South winds 5 to 10 knots. Waves less than 1 foot.
Dominant period 4 seconds. Waves or Seas building to 1 to 3 feet.
Dominant period 4 seconds in the afternoon.
.TONIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or less.
Dominant period 4 seconds.
.MONDAY...Southeast winds 5 to 10 knots. Waves 1 to 2 feet.
Dominant period 4 seconds.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or
less. Dominant period 4 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Waves 1 foot or less.
Dominant period 4 seconds. Waves or Seas building to 1 to 3 feet.
Dominant period 4 seconds in the afternoon.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or
less. Dominant period 4 seconds.
.WEDNESDAY...Southeast winds 5 to 10 knots. Waves 1 to 2 feet.
Dominant period 4 seconds.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 to
2 feet. Dominant period 4 seconds. Slight chance of showers after
midnight.
.THURSDAY...South winds 10 to 15 knots. Waves 1 to 3 feet.
Dominant period 4 seconds. Showers and thunderstorms likely.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Waves 1 to
2 feet. Dominant period 4 seconds. Chance of thunderstorms in the
evening. Chance of showers through the night.

$$


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