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3NM SW Grand Isle LA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 11:20 pm CST Dec 1, 2025
Forecast Valid: 4am CST Dec 2, 2025-6pm CST Dec 8, 2025

Tuesday

NNW wind 15 to 20 kt. Cloudy through mid morning, then gradual clearing. Seas around 1 ft.

Tuesday Night

N wind 10 to 15 kt becoming NE after midnight. Partly cloudy. Seas 1 ft or less.

Wednesday

NE wind 5 to 10 kt becoming E in the afternoon. Mostly sunny. Seas 1 ft or less.

Wednesday Night

ESE wind 5 to 10 kt. A chance of showers, mainly after midnight. Seas around 1 ft.

Thursday

E wind 10 to 15 kt. Showers and possibly a thunderstorm. Seas around 1 ft.

Thursday Night

ENE wind 10 to 15 kt. Showers likely and possibly a thunderstorm. Seas around 1 ft.

Friday

N wind around 10 kt. Showers likely and possibly a thunderstorm. Seas around 1 ft.

Friday Night

NNE wind 5 to 10 kt. Showers likely. Seas around 1 ft.

Saturday

N wind 5 to 10 kt. A chance of showers, with thunderstorms also possible after noon. 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.