| 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: 435 AM CST Sun Jan 11 2026 | |
Today: North winds 20 to 25 knots with gusts up to 30 knots. Seas 7 to 9 feet, occasionally to 11 feet, subsiding to 5 to 8 feet, occasionally to 10 feet this afternoon. Wave detail: north 8 feet at 7 seconds, becoming northeast 8 feet at 7 seconds and northwest 2 feet at 7 seconds. Tonight: Northeast winds 20 to 25 knots with gusts up to 30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave detail: north 6 feet at 7 seconds. Monday: Northeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave detail: northeast 5 feet at 7 seconds. Monday Night: Northeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: northeast 4 feet at 7 seconds. Tuesday: Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: east 3 feet at 6 seconds and northeast 2 feet at 3 seconds. Tuesday Night: Northwest winds 5 to 10 knots. Seas around 2 feet. Wave detail: east 2 feet at 6 seconds and northwest 1 foot at 3 seconds. A slight chance of showers in the evening, then a chance of showers after midnight. Wednesday: Northwest winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: west 3 feet at 4 seconds and east 1 foot at 6 seconds. A chance of showers. Wednesday Night: Northwest winds 15 to 20 knots, becoming north 20 to 25 knots after midnight. Seas 4 to 6 feet, occasionally to 8 feet, building to 6 to 8 feet, occasionally to 10 feet after midnight. Wave detail: northwest 5 feet at 6 seconds and southeast 1 foot at 6 seconds, becoming north 7 feet at 6 seconds. A slight chance of showers. Thursday: North 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: north 7 feet at 6 seconds, becoming northeast 4 feet at 6 seconds. Thursday Night: North winds 10 to 15 knots, becoming northeast 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave detail: north 3 feet at 6 seconds and northwest 1 foot at 4 seconds. | |
| Zone Forecast: Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM (GMZ570) | |
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