| NWS Forecast for: Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm (GMZ550) Issued by: National Weather Service New Orleans/Baton Rouge, LA Last Update: 1131 PM CST Tue Dec 9 2025 | |
| Rest Of Tonight: Southeast winds around 5 knots, becoming southwest late. Seas 1 foot or less. Wave detail: southwest 1 foot at 2 seconds. Wednesday: West winds 5 to 10 knots. Seas 1 to 2 feet. Wave detail: west 2 feet at 3 seconds. Wednesday Night: Northwest winds 10 to 15 knots, becoming north after midnight. Seas 2 to 3 feet. Wave detail: north 2 feet at 3 seconds and west 2 feet at 4 seconds. Thursday: Northeast winds 10 to 15 knots with gusts up to 20 knots, becoming east 5 to 10 knots in the afternoon. Seas 1 to 2 feet. Wave detail: west 1 foot at 4 seconds. Thursday Night: Southeast winds 5 to 10 knots, becoming south after midnight. Seas 1 foot or less. Wave detail: east 1 foot at 3 seconds. Friday: South winds 5 to 10 knots. Seas 1 foot or less. Wave detail: south 1 foot at 3 seconds. Friday Night: Southeast winds around 5 knots. Seas 1 foot or less. Wave detail: south 1 foot at 3 seconds. A slight chance of showers after midnight. Saturday: East winds 5 to 10 knots. Seas 1 foot or less. Wave detail: south 1 foot at 3 seconds. Saturday Night: East winds 5 to 10 knots. Seas 1 foot or less. Wave detail: southeast 1 foot at 3 seconds. A slight chance of showers. Sunday: Northeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 1 to 2 feet. Wave detail: northeast 2 feet at 3 seconds. Sunday Night: Northeast winds 15 to 20 knots. Seas 2 to 3 feet. | |
| Zone Forecast: Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm (GMZ550) | |
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