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29NM NE Grand Isle LA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 11:41 pm CDT Jun 30, 2025
Forecast Valid: 12am CDT Jul 1, 2025-6pm CDT Jul 7, 2025

Overnight

SSW wind 5 to 10 kt becoming W. A chance of showers and thunderstorms, mainly after 3am. Seas around 1 ft.

Tuesday

W wind 5 to 10 kt becoming SW in the afternoon. A chance of showers and thunderstorms. Seas around 1 ft.

Tuesday Night

SW wind around 10 kt becoming WNW after midnight. A chance of showers and thunderstorms, mainly after 3am. Seas around 2 ft.

Wednesday

WNW wind around 10 kt. Showers and thunderstorms likely, mainly between 7am and 1pm. Seas 1 to 2 ft.

Wednesday Night

WNW wind around 10 kt. A chance of showers and thunderstorms. Seas around 1 ft.

Thursday

NNW wind 5 to 10 kt. A chance of showers and thunderstorms, mainly before 1pm. Seas 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.

Independence Day

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

Friday Night

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

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.