Coastal Waters Forecast for Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm (GMZ555) (Text-Only)
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: 701 AM CDT Thu Sep 4 2025
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Today: North winds around 5 knots, becoming southeast late. Seas 1 foot or less.

Tonight: South winds around 5 knots. Seas 1 foot or less.

Friday: East winds around 5 knots. Seas 1 foot or less.

Friday Night: Southeast winds 5 to 10 knots. Seas 1 foot or less.

Saturday: East winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the afternoon.

Saturday Night: Southeast winds around 5 knots, becoming northwest after midnight. Seas 1 foot or less. A slight chance of showers after midnight.

Sunday: Northeast winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet in the afternoon. A slight chance of showers and thunderstorms.

Sunday Night: Northeast winds 10 to 15 knots, increasing to 15 to 20 knots after midnight. Seas 2 to 3 feet. A slight chance of showers and thunderstorms.

Monday: Northeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A slight chance of showers and thunderstorms.

Monday Night: Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight.

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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