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17NM E Grand Isle LA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 1:57 pm CDT Sep 15, 2026
Forecast Valid: 4pm CDT Sep 15, 2026-6pm CDT Sep 22, 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH

Tonight

E wind 5 to 10 kt. Mostly clear. Seas 1 ft or less.

Wednesday

E wind 10 to 15 kt, with gusts as high as 25 kt. A chance of showers and thunderstorms, mainly after 8am. Seas around 1 ft.

Wednesday Night

E wind 10 to 15 kt, with gusts as high as 25 kt. A slight chance of showers and thunderstorms before 8pm. Seas around 1 ft.

Thursday

ENE wind around 15 kt, with gusts as high as 25 kt. Sunny. Seas around 1 ft.

Thursday Night

E wind 10 to 15 kt, with gusts as high as 20 kt. Clear. Seas around 1 ft.

Friday

ENE wind 10 to 15 kt. Sunny. Seas 1 ft or less.

Friday Night

E wind 5 to 10 kt. Mostly clear. Seas 1 ft or less.

Saturday

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Saturday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.