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29NM NE Grand Isle LA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 11:32 am CST Dec 4, 2025
Forecast Valid: 4pm CST Dec 4, 2025-6pm CST Dec 11, 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

Late Afternoon

E wind around 15 kt. A chance of showers and thunderstorms. Seas around 4 ft.

Tonight

E wind 10 to 15 kt becoming NNW in the evening. Showers and thunderstorms likely, mainly before midnight. Seas 1 to 3 ft.

Friday

N wind 10 to 15 kt. A chance of showers and thunderstorms. Seas 1 to 3 ft.

Friday Night

NE wind 5 to 10 kt. Showers likely, mainly after midnight. Seas around 1 ft.

Saturday

NNE wind around 10 kt. Showers. Seas 1 to 2 ft.

Saturday Night

E wind 5 to 10 kt. A chance of showers, with thunderstorms also possible after midnight. Seas 1 to 2 ft.

Sunday

NNE wind 5 to 10 kt. A chance of showers before noon. Seas around 1 ft.

Sunday Night

N wind 5 to 10 kt increasing to 15 to 20 kt after midnight. A slight chance of showers. Seas 1 ft building to 4 ft.

Monday

N wind 15 to 20 kt. Mostly sunny. Seas 3 to 4 ft.

Winds and waves higher in and near thunderstorms.

*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.