| NWS Forecast for: Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm (GMZ551) Issued by: National Weather Service New Orleans/Baton Rouge, LA Last Update: 537 AM CDT Mon Jul 13 2026 |  |
| Today: West winds 5 to 10 knots. Seas 1 to 2 feet. Wave detail: west 2 feet at 3 seconds and southeast 2 feet at 6 seconds. Showers this morning. A chance of thunderstorms. A chance of showers this afternoon. Tonight: West winds 5 to 10 knots. Seas 1 to 2 feet. Wave detail: west 1 foot at 3 seconds and southeast 1 foot at 6 seconds. A chance of showers and thunderstorms after midnight. Tuesday: West winds 5 to 10 knots. Seas 1 to 2 feet. Wave detail: northwest 1 foot at 3 seconds and southeast 1 foot at 6 seconds. A chance of showers and thunderstorms. Tuesday Night: Southwest winds 5 to 10 knots, becoming south after midnight. Seas 1 to 2 feet. Wave detail: southeast 2 feet at 5 seconds and west 1 foot at 3 seconds. Wednesday: South winds around 5 knots. Seas 1 to 2 feet. Wave detail: southeast 2 feet at 6 seconds. Wednesday Night: South winds around 5 knots. Seas 1 to 2 feet. Wave detail: south 2 feet at 6 seconds. Thursday: South winds around 5 knots. Seas 1 to 2 feet. Wave detail: southeast 2 feet at 6 seconds. Thursday Night: Southwest winds 5 to 10 knots. Seas 1 to 2 feet. Wave detail: south 2 feet at 7 seconds. Friday: West winds around 5 knots. Seas 1 to 2 feet. Wave detail: south 2 feet at 6 seconds. A slight chance of showers and thunderstorms in the morning. Friday Night: West winds 5 to 10 knots. Seas 1 to 2 feet. Wave detail: southwest 1 foot at 2 seconds and south 1 foot at 6 seconds. A slight chance of showers and thunderstorms in the evening. winds and seas higher in and near thunderstorms. | |
| Zone Forecast: Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm (GMZ551) | |
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