| NWS Forecast for: Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM (GMZ552) Issued by: National Weather Service New Orleans/Baton Rouge, LA Last Update: 437 AM CST Sat Dec 27 2025 | |
Today: South winds around 5 knots. Seas 1 to 2 feet. Wave detail: south 1 foot at 5 seconds. Patchy dense fog this morning. Tonight: South winds 5 to 10 knots. Seas 1 to 2 feet. Wave detail: south 2 feet at 5 seconds. Patchy fog after midnight. Sunday: South winds 5 to 10 knots. Seas 1 to 2 feet. Wave detail: south 2 feet at 4 seconds. A slight chance of showers in the afternoon. Sunday Night: South winds 5 to 10 knots, becoming southwest 10 to 15 knots after midnight. Seas 1 to 2 feet, building to 2 to 3 feet after midnight. Wave detail: south 2 feet at 5 seconds, becoming south 3 feet at 6 seconds. A chance of showers in the evening, then showers likely with a slight chance of thunderstorms after midnight. Monday: North winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: northwest 3 feet at 4 seconds and south 3 feet at 6 seconds. A chance of showers. Monday Night: North winds 20 to 25 knots with gusts up to 30 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: north 4 feet at 3 seconds. Tuesday: North winds 20 to 25 knots, diminishing to 10 to 15 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: north 4 feet at 3 seconds. Tuesday Night: North winds 10 to 15 knots. Seas 1 to 2 feet. Wave detail: north 2 feet at 3 seconds. Wednesday: North winds 5 to 10 knots. Seas 1 to 2 feet in the morning, then 1 foot or less. Wave detail: northeast 1 foot at 3 seconds. Wednesday Night: Northwest winds around 5 knots. Seas 1 foot or less. Wave detail: northwest 1 foot at 2 seconds. winds and seas higher in and near thunderstorms. | |
| Zone Forecast: Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM (GMZ552) | |
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