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29NM NE Grand Isle LA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 9:21 pm CST Dec 7, 2025
Forecast Valid: 11pm CST Dec 7, 2025-6pm CST Dec 14, 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT CST TONIGHT THROUGH

Overnight

ENE wind 5 to 10 kt becoming N 15 to 20 kt after midnight. Showers likely, mainly before 2am. Seas 2 ft building to 5 ft.

Monday

N wind 15 to 20 kt, with gusts as high as 25 kt. Mostly sunny. Seas 4 to 5 ft.

Monday Night

NNE wind 10 to 15 kt, with gusts as high as 20 kt. Partly cloudy. Seas 3 to 4 ft.

Tuesday

NE wind 5 to 10 kt. Sunny. Seas 1 to 2 ft.

Tuesday Night

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

Wednesday

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

Wednesday Night

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

Thursday

Variable winds 5 kt or less. Mostly sunny. Seas 1 to 2 ft.

Thursday Night

Variable winds 5 kt or less. A slight chance of showers and thunderstorms after midnight. Seas around 1 ft.

*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.