Coastal Waters Forecast for Coastal Waters from Stake Island LA to Southwest Pass of the Mississippi River from 20 to 60 nm (GMZ575) (Text-Only)
NWS Forecast for: Coastal Waters from Stake Island LA to Southwest Pass of the Mississippi River from 20 to 60 nm (GMZ575)
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Last Update: 1226 AM CDT Thu Mar 12 2026




Rest Of Tonight: South winds 15 to 20 knots, becoming southwest 20 to 25 knots late. Seas 4 to 6 feet, occasionally to 8 feet. Wave detail: south 4 feet at 6 seconds. A chance of thunderstorms. A chance of showers, then showers late.

Thursday: Northwest winds 20 to 25 knots, becoming north in the afternoon. Seas 7 to 10 feet, occasionally to 13 feet, building to 9 to 12 feet, occasionally to 15 feet in the afternoon. Wave detail: west 7 feet at 6 seconds and southeast 4 feet at 7 seconds, becoming northeast 10 feet at 8 seconds and northwest 9 feet at 9 seconds. A slight chance of showers and thunderstorms in the morning.

Thursday Night: Northeast winds 20 to 25 knots, diminishing to 15 to 20 knots after midnight. Seas 7 to 8 feet, occasionally to 10 feet, subsiding to 5 to 6 feet, occasionally to 8 feet after midnight. Wave detail: north 8 feet at 8 seconds and northwest 5 feet at 8 seconds, becoming northeast 6 feet at 7 seconds and west 2 feet at 7 seconds.

Friday: East winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: northeast 4 feet at 7 seconds.

Friday Night: East winds around 5 knots. Seas around 2 feet. Wave detail: east 2 feet at 6 seconds.

Saturday: East winds 5 to 10 knots. Seas around 2 feet. Wave detail: east 2 feet at 6 seconds.

Saturday Night: East winds around 10 knots, becoming southeast after midnight. Seas around 2 feet. Wave detail: east 2 feet at 5 seconds. A slight chance of showers in the evening, then a chance of showers after midnight.

Sunday: South winds around 10 knots. Seas around 2 feet. Wave detail: southeast 2 feet at 4 seconds. A slight chance of thunderstorms in the morning. A slight chance of showers.

Sunday Night: Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southwest 3 feet at 5 seconds. A chance of showers and thunderstorms after midnight.

Monday: North winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet, building to 7 to 9 feet, occasionally to 11 feet in the afternoon. Wave detail: northwest 3 feet at 5 seconds and southeast 3 feet at 5 seconds, becoming north 8 feet at 7 seconds. A chance of showers and thunderstorms, mainly in the morning.

Monday Night: North winds around 20 knots. Seas 6 to 8 feet, occasionally to 10 feet.

winds and seas higher in and near thunderstorms.







Zone Forecast: Coastal Waters from Stake Island LA to Southwest Pass of the Mississippi River from 20 to 60 nm (GMZ575)

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