| 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: 1127 AM CST Tue Jan 20 2026 | |
| This Afternoon: Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: east 3 feet at 5 seconds. Tonight: East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: east 4 feet at 6 seconds. Wednesday: Southeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: southeast 4 feet at 7 seconds. Wednesday Night: Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: southeast 4 feet at 7 seconds. A chance of showers. Thursday: Southeast winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: southeast 4 feet at 8 seconds. A chance of showers, mainly in the morning. Thursday Night: Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 7 seconds. A slight chance of showers in the evening, then a chance of showers after midnight. Friday: East winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 7 seconds. A chance of showers. Friday Night: East winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: east 3 feet at 5 seconds. A chance of showers. Saturday: Southeast winds 10 to 15 knots. Seas around 3 feet. Wave detail: southeast 3 feet at 6 seconds. A chance of showers in the morning, then showers likely in the afternoon. Saturday Night: Southwest winds 10 to 15 knots, becoming northwest 15 to 20 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet. Wave detail: northwest 3 feet at 4 seconds and southeast 3 feet at 5 seconds. Showers. | |
| Zone Forecast: Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm (GMZ555) | |
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