| 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: 537 AM CDT Fri Oct 16 2026 | |
Today: East winds 5 to 10 knots, becoming northeast 10 to 15 knots late this morning and afternoon. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 6 seconds and northeast 2 feet at 3 seconds. Showers likely with a chance of thunderstorms this morning, then a chance of showers with a slight chance of thunderstorms this afternoon. Tonight: North winds 25 to 30 knots, becoming northeast 30 to 35 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet, building to 9 to 12 feet, occasionally to 15 feet after midnight. Wave detail: northeast 4 feet at 4 seconds and southeast 2 feet at 6 seconds, becoming northeast 11 feet at 6 seconds. A slight chance of showers and thunderstorms 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: northeast 12 feet at 8 seconds. Saturday Night: Northeast winds 25 to 30 knots. Seas 8 to 11 feet, occasionally to 14 feet. Wave detail: northeast 11 feet at 8 seconds. Sunday: Northeast winds 20 to 25 knots with gusts up to 30 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave detail: east 9 feet at 8 seconds. Sunday Night: Northeast winds 25 to 30 knots, becoming east 20 to 25 knots after midnight. Seas 8 to 11 feet, occasionally to 14 feet. Wave detail: east 11 feet at 9 seconds. Monday: East winds 20 to 25 knots. Seas 7 to 10 feet, occasionally to 13 feet. Wave detail: east 10 feet at 9 seconds. A slight chance of showers in the morning, then a chance of showers in the afternoon. Monday Night: Northeast winds 25 to 30 knots, becoming east 20 to 25 knots after midnight. Seas 8 to 11 feet, occasionally to 14 feet. Wave detail: east 11 feet at 9 seconds. Tuesday: Northeast winds 20 to 25 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave detail: east 8 feet at 9 seconds. Tuesday Night: Northeast winds 20 to 25 knots, becoming east 15 to 20 knots after midnight. Seas 5 to 8 feet, occasionally to 10 feet. Wave detail: east 8 feet at 9 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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