Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM Marine Forecast

NOAA marine forecast

Text forecast

Updated 5:36pm CDT Oct 11, 2026

Tonight

East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.

Monday

East winds 10 to 15 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 7 seconds.

Monday Night

Southeast winds 10 to 15 knots. Seas 2 to 3 feet.

Tuesday

Southeast winds around 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.

Tuesday Night

Southeast winds 10 to 15 knots. Seas 2 to 3 feet.

Wednesday

East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.

Wednesday Night

East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 6 seconds.

Thursday

East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 6 seconds.

Thursday Night

East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 6 seconds.

Friday

Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. A chance of showers with a slight chance of thunderstorms.

Friday Night

Northeast winds 15 to 20 knots, increasing to 30 to 35 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet, building to 6 to 9 feet, occasionally to 11 feet after midnight. A slight chance of showers.

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Interactive Mapbox map highlighting marine forecast zone GMZ570.