| 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: 1128 AM CST Thu Feb 19 2026 | |
| This Afternoon: South winds around 15 knots with gusts up to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: south 3 feet at 6 seconds. Tonight: Southwest winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: south 4 feet at 6 seconds. Areas of dense fog after midnight with visibility 1 nm or less. Friday: South winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: south 4 feet at 7 seconds. A slight chance of showers in the morning, then a chance of showers in the afternoon. Friday Night: South winds around 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: south 4 feet at 7 seconds. A slight chance of showers. Saturday: Southwest winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: south 4 feet at 7 seconds. A chance of showers. Saturday Night: West winds 10 to 15 knots with gusts up to 20 knots, becoming northwest 20 to 25 knots with gusts up to 30 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet, building to 4 to 6 feet, occasionally to 8 feet after midnight. Wave detail: south 4 feet at 7 seconds, becoming northwest 5 feet at 5 seconds and south 3 feet at 7 seconds. Showers likely with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Sunday: North winds 25 to 30 knots, diminishing to 20 to 25 knots in the afternoon. Seas 6 to 9 feet, occasionally to 11 feet. Wave detail: north 9 feet at 7 seconds and south 2 feet at 7 seconds. Sunday Night: North winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave detail: north 7 feet at 6 seconds. Monday: North winds 20 to 25 knots, diminishing to 15 to 20 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave detail: north 5 feet at 5 seconds. Monday Night: North winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave detail: northeast 5 feet at 6 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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