Coastal Waters Forecast for Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM (GMZ572) (Text-Only)
NWS Forecast for: Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM (GMZ572)
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Last Update: 537 PM CDT Wed Aug 19 2026
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Tonight: Southwest winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave detail: west 1 foot at 3 seconds and north 1 foot at 3 seconds, becoming west 1 foot at 3 seconds.

Thursday: West winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. Wave detail: west 1 foot at 3 seconds, becoming north 1 foot at 3 seconds.

Thursday Night: West winds 5 to 10 knots. Seas 1 foot or less. Wave detail: north 1 foot at 3 seconds and west 1 foot at 4 seconds.

Friday: West winds 5 to 10 knots. Seas 1 foot or less. Wave detail: west 1 foot at 3 seconds and northeast 1 foot at 3 seconds. A chance of showers. A chance of thunderstorms, mainly in the morning.

Friday Night: West winds 5 to 10 knots. Seas 1 foot or less. Wave detail: west 1 foot at 3 seconds and northeast 1 foot at 3 seconds. A chance of showers and thunderstorms after midnight.

Saturday: West winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet in the afternoon. Wave detail: west 1 foot at 3 seconds. A chance of showers and thunderstorms.

Saturday Night: West winds 5 to 10 knots. Seas 1 foot or less. Wave detail: west 1 foot at 4 seconds. A slight chance of showers and thunderstorms after midnight.

Sunday: Northwest winds around 5 knots. Seas 1 foot or less, then around 2 feet in the afternoon. Wave detail: northwest 1 foot at 4 seconds, becoming northwest 1 foot at 3 seconds and northeast 1 foot at 4 seconds. A chance of showers and thunderstorms, mainly in the morning.

Sunday Night: West winds around 5 knots. Seas 1 foot or less. Wave detail: west 1 foot at 4 seconds and northeast 1 foot at 4 seconds.

Monday: Northwest winds around 5 knots. Seas 1 foot or less. Wave detail: west 1 foot at 4 seconds. A slight chance of showers and thunderstorms.

Monday Night: Northwest winds around 5 knots, becoming southwest after midnight. Seas 1 foot or less.

winds and seas higher in and near thunderstorms.







Zone Forecast: Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM (GMZ572)

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