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New Orleans/Baton Rouge, LA Local Forecast Office

19NM SE Grand Isle LA

Marine Zone Forecast

Today

Southeast winds 15 to 20 knots with gusts up to 25 knots, diminishing to 10 to 15 knots with gusts up to 20 knots this afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: southeast 4 feet at 5 seconds.

Tonight

Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 6 seconds.

Sunday

East winds 5 to 10 knots, becoming northeast 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas 1 to 2 feet. Wave detail: southeast 2 feet at 6 seconds and northeast 1 foot at 2 seconds. A slight chance of showers.

Sunday Night

Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: northeast 3 feet at 4 seconds and southeast 2 feet at 8 seconds. A slight chance of showers.

Monday

East winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: southeast 3 feet at 8 seconds. A chance of showers in the morning, then showers likely with a slight chance of thunderstorms in the afternoon.

Monday Night

Southeast winds 10 to 15 knots, becoming west 15 to 20 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: west 3 feet at 4 seconds. Showers. A chance of thunderstorms, mainly in the evening.

Tuesday

Northwest winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: northwest 4 feet at 4 seconds and southeast 3 feet at 7 seconds. A chance of showers in the morning.

Tuesday Night

North winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: north 3 feet at 4 seconds and southeast 2 feet at 7 seconds.

Wednesday

Northeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave detail: northeast 2 feet at 3 seconds and southeast 1 foot at 7 seconds.

Wednesday Night

East winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 1 to 2 feet. Wave detail: east 2 feet at 3 seconds and southeast 1 foot at 6 seconds. A slight chance of showers and thunderstorms after midnight.

winds and seas higher in and near thunderstorms.

Winds and seas higher in and near thunderstorms.