| 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: 602 PM CST Wed Jan 7 2026 | |
| Tonight: South winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots after midnight. Seas 2 to 3 feet. Wave detail: south 2 feet at 5 seconds. Thursday: Southeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave detail: south 4 feet at 5 seconds. Thursday Night: Southeast winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave detail: south 5 feet at 6 seconds. A chance of showers, mainly in the evening with visibility 1 nm or less. Friday: South winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave detail: south 6 feet at 7 seconds. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Friday Night: South winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave detail: south 6 feet at 7 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Saturday: Southwest winds 15 to 20 knots, becoming northwest 20 to 25 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave detail: south 5 feet at 7 seconds and west 4 feet at 6 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. Saturday Night: North winds 20 to 25 knots, increasing to 25 to 30 knots after midnight. Seas 6 to 9 feet, occasionally to 11 feet, building to 8 to 11 feet, occasionally to 14 feet after midnight. Wave detail: north 7 feet at 6 seconds and southeast 3 feet at 7 seconds, becoming north 9 feet at 7 seconds and southeast 2 feet at 7 seconds. A chance of showers. Sunday: North winds 25 to 30 knots. Seas 8 to 11 feet, occasionally to 14 feet, subsiding to 6 to 9 feet, occasionally to 11 feet in the afternoon. Wave detail: north 10 feet at 7 seconds, becoming north 9 feet at 7 seconds. A slight chance of showers in the morning. Sunday Night: Northeast winds 20 to 25 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave detail: north 7 feet at 7 seconds. Monday: Northeast winds 20 to 25 knots, diminishing to 15 to 20 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 3 to 5 feet, occasionally to 6 feet in the afternoon. Wave detail: northeast 7 feet at 7 seconds, becoming northeast 5 feet at 7 seconds. Monday Night: Northeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. A slight chance of showers after midnight. 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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