| 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: 702 PM CST Tue Jan 27 2026 |  |
| Tonight: Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: northeast 2 feet at 6 seconds. Wednesday: North winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: northeast 2 feet at 5 seconds. Wednesday Night: North winds 5 to 10 knots. Seas around 2 feet. Wave detail: northwest 1 foot at 4 seconds and east 1 foot at 5 seconds. Thursday: East winds around 5 knots, becoming south in the afternoon. Seas 1 foot or less. Wave detail: northeast 1 foot at 3 seconds and northwest 1 foot at 3 seconds. Thursday Night: South winds 5 to 10 knots, becoming southwest 10 to 15 knots with gusts up to 20 knots after midnight. Seas 1 foot or less, then around 2 feet after midnight. Wave detail: south 1 foot at 3 seconds, becoming south 2 feet at 4 seconds. A chance of showers with a slight chance of thunderstorms after midnight. Friday: Northwest winds 15 to 20 knots, becoming north 20 to 25 knots with gusts up to 30 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet, building to 5 to 7 feet, occasionally to 9 feet in the afternoon. Wave detail: west 4 feet at 4 seconds, becoming northwest 7 feet at 5 seconds. Showers likely, mainly in the morning. Friday Night: North winds 25 to 30 knots with gusts up to 40 knots. Seas 8 to 11 feet, occasionally to 14 feet, building to 9 to 13 feet, occasionally to 17 feet after midnight. Wave detail: north 9 feet at 7 seconds, becoming northwest 10 feet at 8 seconds and northeast 9 feet at 8 seconds. A chance of showers. Saturday: North winds 25 to 30 knots. Seas 9 to 13 feet, occasionally to 17 feet, subsiding to 8 to 11 feet, occasionally to 14 feet in the afternoon. Wave detail: northwest 10 feet at 8 seconds and northeast 10 feet at 8 seconds, becoming northeast 8 feet at 8 seconds and northwest 8 feet at 8 seconds. A chance of showers in the morning. Saturday Night: North winds 20 to 25 knots. Seas 7 to 9 feet, occasionally to 11 feet, subsiding to 6 to 7 feet, occasionally to 9 feet after midnight. Wave detail: north 7 feet at 7 seconds. A slight chance of showers in the evening. Sunday: North winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave detail: north 6 feet at 6 seconds. Sunday Night: North winds 5 to 10 knots. Seas 2 to 3 feet. 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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