| NWS Forecast for: Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM (GMZ570) Issued by: National Weather Service New Orleans/Baton Rouge, LA Last Update: 536 AM CDT Wed Apr 15 2026 |  |
| Today: Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: southeast 4 feet at 7 seconds. Tonight: Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: southeast 4 feet at 7 seconds. Thursday: Southeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: southeast 4 feet at 7 seconds. Thursday Night: Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 7 seconds. Friday: Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 7 seconds. Friday Night: Southeast winds 10 to 15 knots. Seas around 3 feet. Wave detail: southeast 3 feet at 7 seconds. Saturday: South winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 6 seconds. Saturday Night: South winds 5 to 10 knots, becoming southwest 10 to 15 knots after midnight. Seas around 2 feet. Wave detail: southeast 2 feet at 6 seconds. A slight chance of showers after midnight. Sunday: North winds 20 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet, building to 6 to 7 feet, occasionally to 9 feet in the afternoon. Wave detail: north 4 feet at 4 seconds and southeast 2 feet at 6 seconds, becoming northeast 6 feet at 5 seconds. A slight chance of showers and thunderstorms in the morning. Sunday Night: Northeast winds 20 to 25 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave detail: northeast 8 feet at 7 seconds. winds and seas higher in and near thunderstorms. | |
| Zone Forecast: Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM (GMZ570) | |
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