| 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: 1227 AM CDT Sun Mar 15 2026 |  |
Rest Of Tonight: Southeast winds 10 to 15 knots. Seas around 2 feet. Wave detail: southeast 2 feet at 4 seconds. Sunday: South winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: south 3 feet at 5 seconds. Sunday Night: South winds 15 to 20 knots with gusts up to 25 knots, becoming northwest 25 to 30 knots with gusts up to 40 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet. Wave detail: south 5 feet at 6 seconds and northwest 4 feet at 4 seconds. A slight chance of showers and thunderstorms in the evening, then showers with a chance of thunderstorms after midnight. Monday: North winds 25 to 30 knots with gusts up to 40 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave detail: northwest 6 feet at 5 seconds and southwest 3 feet at 6 seconds. A slight chance of thunderstorms in the morning. A slight chance of showers. Monday Night: North winds 20 to 25 knots with gusts up to 30 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave detail: north 4 feet at 4 seconds and west 1 foot at 6 seconds. Tuesday: North winds 20 to 25 knots, becoming northeast 10 to 15 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: northeast 4 feet at 4 seconds. Tuesday Night: Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 1 to 2 feet. Wave detail: northeast 2 feet at 3 seconds. Wednesday: East winds 5 to 10 knots. Seas 1 to 2 feet. Wave detail: east 2 feet at 4 seconds. Wednesday Night: East winds 5 to 10 knots. Seas 1 to 2 feet. Wave detail: east 1 foot at 4 seconds. Thursday: East winds around 5 knots. Seas 1 foot or less. Wave detail: southeast 1 foot at 5 seconds. Thursday Night: Southwest winds 5 to 10 knots. Seas 1 to 2 feet. 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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