19NM SE Grand Isle LA

Northwest winds 25 to 30 knots, diminishing to 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave detail: northwest 5 feet at 5 seconds.

Northeast winds 10 to 15 knots, becoming southeast 5 to 10 knots in the afternoon. Seas 1 to 2 feet. Wave detail: northeast 2 feet at 3 seconds and southwest 1 foot at 5 seconds.

Southeast 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 southeast 1 foot at 3 seconds.

Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: south 3 feet at 5 seconds and south 2 feet at 2 seconds.

West winds around 10 knots, becoming north in the afternoon. Seas 2 to 3 feet. Wave detail: southwest 3 feet at 6 seconds and north 1 foot at 3 seconds. Showers likely with a chance of thunderstorms in the morning, then a slight chance of showers and thunderstorms in the afternoon.