| 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 PM CDT Fri Jul 17 2026 | |
| Tonight: West winds around 5 knots, becoming northwest after midnight. Seas 1 foot or less, then around 2 feet after midnight. Wave detail: south 1 foot at 5 seconds, becoming west 2 feet at 3 seconds and southeast 1 foot at 6 seconds. Saturday: Northwest winds 5 to 10 knots. Seas around 2 feet. Wave detail: northwest 2 feet at 4 seconds and southeast 1 foot at 6 seconds. Saturday Night: Northwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: northwest 3 feet at 4 seconds and east 1 foot at 6 seconds. Sunday: Northwest winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: northwest 3 feet at 5 seconds and northeast 1 foot at 6 seconds. A slight chance of showers and thunderstorms in the morning. Sunday Night: West winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: northwest 2 feet at 4 seconds and east 1 foot at 6 seconds. A slight chance of showers and thunderstorms. Monday: Northwest winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave detail: north 4 feet at 5 seconds. A chance of showers and thunderstorms, mainly in the morning. Monday Night: West winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: west 2 feet at 4 seconds and east 1 foot at 6 seconds. A chance of showers and thunderstorms after midnight. Tuesday: Northwest winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: north 3 feet at 5 seconds. A chance of showers and thunderstorms, mainly in the morning. Tuesday Night: West winds 10 to 15 knots. Seas around 2 feet. Wave detail: west 2 feet at 4 seconds and northeast 1 foot at 4 seconds. A slight chance of showers and thunderstorms. Wednesday: West winds 10 to 15 knots. Seas around 2 feet. Wave detail: west 2 feet at 4 seconds. A chance of showers and thunderstorms, mainly in the morning. Wednesday Night: West winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers and thunderstorms. 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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