| NWS Forecast for: Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm (GMZ555) Issued by: National Weather Service New Orleans/Baton Rouge, LA Last Update: 437 AM CST Sat Dec 6 2025 | |
| Today: Northeast winds 5 to 10 knots. Seas around 2 feet. Wave detail: northeast 2 feet at 4 seconds. Showers until late afternoon, then a chance of showers late. Tonight: Southeast winds 5 to 10 knots. Seas around 2 feet. Wave detail: east 2 feet at 4 seconds. A chance of showers in the evening, then showers likely with a slight chance of thunderstorms after midnight. Sunday: Northeast winds 5 to 10 knots. Seas around 2 feet. Wave detail: east 2 feet at 5 seconds. Showers likely with a slight chance of thunderstorms in the morning, then a chance of showers in the afternoon. Sunday Night: North winds 5 to 10 knots, increasing to 15 to 20 knots with gusts up to 25 knots after midnight. Seas around 2 feet, building to 3 to 5 feet, occasionally to 6 feet after midnight. Wave detail: northeast 2 feet at 5 seconds, becoming north 3 feet at 5 seconds. Showers likely, mainly in the evening. Monday: North winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave detail: north 5 feet at 5 seconds. Monday Night: Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: northeast 4 feet at 5 seconds. Tuesday: Northeast winds 5 to 10 knots. Seas around 2 feet. Wave detail: northeast 2 feet at 5 seconds. Tuesday Night: East winds around 5 knots, becoming southwest after midnight. Seas around 2 feet in the evening, then 1 foot or less. Wave detail: east 1 foot at 5 seconds. Wednesday: Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave detail: southwest 1 foot at 2 seconds and east 1 foot at 5 seconds. Wednesday Night: Southwest winds 5 to 10 knots. Seas around 2 feet. Wave detail: southwest 2 feet at 3 seconds and east 1 foot at 5 seconds. winds and seas higher in and near thunderstorms. | |
| Zone Forecast: Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm (GMZ555) | |
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