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: 201 PM CDT Wed Sep 9 2026


This Afternoon: Northeast winds 10 to 15 knots. Seas around 3 feet. Wave detail: northeast 3 feet at 5 seconds. A chance of thunderstorms. Showers early, then a chance of showers late.

Tonight: East winds 10 to 15 knots with gusts up to 20 knots, becoming southeast 5 to 10 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: east 3 feet at 5 seconds. A chance of showers and thunderstorms.

Thursday: Southwest winds 5 to 10 knots. Seas around 2 feet. Wave detail: east 2 feet at 5 seconds. A chance of showers and thunderstorms.

Thursday Night: Southwest winds 5 to 10 knots. Seas around 2 feet. Wave detail: southwest 1 foot at 3 seconds and east 1 foot at 4 seconds. A chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight.

Friday: Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave detail: southwest 1 foot at 3 seconds and east 1 foot at 4 seconds. Showers likely with a chance of thunderstorms.

Friday Night: South winds around 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave detail: south 1 foot at 3 seconds. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight.

Saturday: South winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. Wave detail: south 1 foot at 4 seconds. A chance of thunderstorms. Showers likely, mainly in the morning.

Saturday Night: Southeast winds 5 to 10 knots. Seas around 2 feet. Wave detail: southeast 2 feet at 4 seconds. A slight chance of showers and thunderstorms after midnight.

Sunday: Southeast winds around 5 knots. Seas around 2 feet. Wave detail: southeast 2 feet at 4 seconds. A chance of showers and thunderstorms.

Sunday Night: Southeast winds 5 to 10 knots. Seas around 2 feet. Wave detail: southeast 2 feet at 5 seconds.

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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