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New Orleans/Baton Rouge, LA Local Forecast Office

19NM SE Grand Isle LA

Marine Zone Forecast

Tonight

East winds 5 to 10 knots. Seas 1 to 2 feet this evening, then 1 foot or less. Wave detail: east 1 foot at 4 seconds. A chance of showers. A slight chance of thunderstorms after midnight.

Sunday

Northeast winds around 5 knots. Seas 1 foot or less. Wave detail: east 1 foot at 4 seconds. A slight chance of thunderstorms. Showers likely, mainly in the morning.

Sunday Night

North winds 10 to 15 knots, increasing to 20 to 25 knots after midnight. Seas 1 to 2 feet, building to 2 to 4 feet, occasionally to 5 feet after midnight. Wave detail: southwest 1 foot at 3 seconds and northeast 1 foot at 4 seconds, becoming northwest 4 feet at 4 seconds and east 1 foot at 3 seconds. A chance of showers, mainly in the evening.

Monday

North winds 20 to 25 knots, diminishing to 15 to 20 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: north 4 feet at 4 seconds.

Monday Night

Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 2 to 3 feet. Wave detail: northeast 3 feet at 4 seconds.

Tuesday

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

Tuesday Night

Southeast winds around 5 knots, becoming south around 5 knots after midnight. Seas 1 foot or less. Wave detail: east 1 foot at 4 seconds.

Wednesday

Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave detail: southwest 1 foot at 2 seconds and east 1 foot at 5 seconds.

Wednesday Night

Southwest winds 5 to 10 knots. Seas 1 to 2 feet. Wave detail: southwest 2 feet at 4 seconds.

Thursday

Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southwest 3 feet at 5 seconds.

Thursday Night

Southwest winds around 10 knots, becoming west after midnight. Seas 2 to 3 feet. A slight chance of showers.

winds and seas higher in and near thunderstorms.

Winds and seas higher in and near thunderstorms.