| 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 PM CDT Mon May 25 2026 |  |
| Tonight: Southeast winds 5 to 10 knots, becoming south 10 to 15 knots late. Seas 2 to 3 feet. Wave detail: south 2 feet at 5 seconds. A chance of showers and thunderstorms early this evening. A slight chance of showers and thunderstorms after midnight, then a chance of showers and thunderstorms late. Tuesday: South winds around 10 knots. Seas 2 to 3 feet. Wave detail: south 3 feet at 6 seconds. A chance of thunderstorms. A chance of showers. Tuesday Night: Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: south 4 feet at 6 seconds. A slight chance of showers and thunderstorms in the evening. Wednesday: Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: southeast 4 feet at 7 seconds. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Wednesday Night: Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: south 4 feet at 6 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Thursday: Southeast winds around 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: south 3 feet at 6 seconds. Showers with thunderstorms likely. Thursday Night: South winds around 10 knots. Seas around 3 feet. Wave detail: south 3 feet at 6 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Friday: South winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: south 2 feet at 6 seconds. A chance of thunderstorms. A chance of showers. Friday Night: Southwest winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: southeast 2 feet at 7 seconds. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Saturday: West winds around 10 knots. Seas 2 to 3 feet. Wave detail: south 2 feet at 5 seconds and southeast 1 foot at 8 seconds. A chance of showers and thunderstorms, mainly in the morning. Saturday Night: West winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers. 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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