| 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: 156 PM CDT Fri Oct 16 2026 | |
This Afternoon: North winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: northeast 2 feet at 3 seconds. A slight chance of thunderstorms early. A slight chance of showers. Tonight: North winds 25 to 30 knots, increasing to 30 to 35 knots after midnight. Seas 4 to 6 feet, occasionally to 8 feet, building to 9 to 12 feet, occasionally to 15 feet after midnight. Wave detail: north 4 feet at 5 seconds, becoming north 6 feet at 5 seconds. A slight chance of showers in the evening. Saturday: Northeast winds 25 to 30 knots with gusts up to 40 knots. Seas 9 to 12 feet, occasionally to 15 feet. Wave detail: northwest 1 foot at 8 seconds. Saturday Night: Northeast winds 25 to 30 knots. Seas 7 to 10 feet, occasionally to 13 feet. Sunday: Northeast winds 20 to 25 knots with gusts up to 30 knots. Seas 7 to 9 feet, occasionally to 11 feet. Sunday Night: Northeast winds 20 to 25 knots with gusts up to 30 knots. Seas 7 to 10 feet, occasionally to 13 feet. Monday: Northeast winds 15 to 20 knots, increasing to 20 to 25 knots in the afternoon. Seas 5 to 6 feet, occasionally to 8 feet. A slight chance of showers in the afternoon. Monday Night: Northeast winds 20 to 25 knots. Seas 6 to 9 feet, occasionally to 11 feet. Tuesday: Northeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Tuesday Night: Northeast winds 15 to 20 knots, becoming east 10 to 15 knots after midnight. Seas 3 to 5 feet, occasionally to 6 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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