| 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: 343 AM CDT Wed May 21 2025 |  |
| Today: West winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: southwest 3 feet at 6 seconds. A chance of showers and thunderstorms. Tonight: West winds around 5 knots, becoming east after midnight. Seas around 2 feet. Wave detail: south 2 feet at 5 seconds. A chance of showers and thunderstorms after midnight. Thursday: Northeast winds 5 to 10 knots, becoming southeast in the afternoon. Seas around 2 feet. Wave detail: south 2 feet at 5 seconds and northeast 1 foot at 2 seconds. A chance of showers and thunderstorms, mainly in the morning. Thursday Night: Southwest winds 5 to 10 knots. Seas around 2 feet in the evening, then 1 foot or less. Wave detail: south 1 foot at 4 seconds, becoming south 1 foot at 5 seconds. Friday: North winds 5 to 10 knots, becoming east in the afternoon. Seas 1 foot or less. Wave detail: west 1 foot at 4 seconds. Friday Night: South winds 5 to 10 knots. Seas 1 foot or less. Wave detail: southeast 1 foot at 4 seconds. Saturday: Southeast winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet in the afternoon. Wave detail: south 1 foot at 4 seconds, becoming southeast 1 foot at 3 seconds. Saturday Night: South winds around 10 knots. Seas around 2 feet. Wave detail: southeast 2 feet at 4 seconds. Sunday: South winds around 10 knots. Seas around 2 feet. Wave detail: southeast 2 feet at 4 seconds. A slight chance of showers and thunderstorms in the afternoon. Sunday Night: South winds around 10 knots. Seas around 2 feet. Wave detail: south 2 feet at 4 seconds. A slight chance of showers and thunderstorms. 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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