| 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: 536 AM CDT Thu Jul 9 2026 | |
| Today: Southeast winds around 5 knots. Seas 1 foot or less. Wave detail: south 1 foot at 4 seconds. A slight chance of showers and thunderstorms late this morning. Tonight: Southeast winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave detail: southeast 1 foot at 3 seconds, becoming southeast 2 feet at 4 seconds. Friday: Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 5 seconds. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Friday Night: Southeast winds 10 to 15 knots. Seas around 3 feet. Wave detail: southeast 3 feet at 7 seconds. A slight chance of showers and thunderstorms after midnight. Saturday: Southeast winds 5 to 10 knots. Seas around 3 feet. Wave detail: southeast 3 feet at 7 seconds. A chance of showers and thunderstorms. Saturday Night: South winds 5 to 10 knots. Seas around 3 feet. Wave detail: southeast 3 feet at 7 seconds. A chance of showers and thunderstorms after midnight. Sunday: Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 6 seconds. Thunderstorms likely. Showers likely. Sunday Night: Southwest winds 5 to 10 knots. Seas around 2 feet. Wave detail: southeast 2 feet at 6 seconds. A chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. Monday: West winds 5 to 10 knots. Seas around 2 feet. Wave detail: south 2 feet at 5 seconds. Showers and thunderstorms likely in the morning, then showers likely with a chance of thunderstorms in the afternoon. Monday Night: Southwest winds 5 to 10 knots. Seas around 2 feet. Wave detail: south 2 feet at 5 seconds and west 1 foot at 3 seconds. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. 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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