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New Orleans/Baton Rouge, LA Local Forecast Office

19NM SE Grand Isle LA

Marine Zone Forecast

Today

North winds 15 to 20 knots, diminishing to 10 to 15 knots this afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: northwest 2 feet at 3 seconds.

Tonight

Northwest winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: northwest 3 feet at 4 seconds.

Friday

North winds 15 to 20 knots with gusts up to 25 knots, becoming northwest 10 to 15 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: northwest 3 feet at 3 seconds.

Friday Night

North winds around 10 knots. Seas around 2 feet. Wave detail: north 1 foot at 3 seconds.

Saturday

Northeast winds 5 to 10 knots, becoming east in the afternoon. Seas 1 foot or less. Wave detail: northeast 1 foot at 3 seconds.

Saturday Night

Southeast winds around 5 knots, becoming south after midnight. Seas 1 foot or less.

Sunday

South winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet in the afternoon. Wave detail: south 1 foot at 3 seconds, becoming south 1 foot at 4 seconds.

Sunday Night

South winds 10 to 15 knots. Seas around 2 feet. Wave detail: south 2 feet at 4 seconds.

Monday

South winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: southwest 2 feet at 5 seconds.

Monday Night

South winds 5 to 10 knots. Seas around 2 feet. Wave detail: southwest 2 feet at 5 seconds. A slight chance of showers after midnight.