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Marine Thunderstorm Wind — Coastal Waters From Southwest Pass of the Mississippi River To Port Fourchon Louisiana Out 20 Nm, Gulf of Mexico

2026-01-25 · near Grand Isle Station (gisl1), Coastal Waters From Southwest Pass of the Mississippi River To Port Fourchon Louisiana Out 20 Nm, Gulf of Mexico

43 MG

Magnitude

Event narrative

Buoy station GISL1 on Grand Isle measured a thunderstorm wind gust of 50 mph or 43 knots.

Wider weather episode

A cold front moved east across the coastal waters of southeast Louisiana and coastal Mississippi during the morning of January 25th. A line of showers and thunderstorms developed along and just ahead of the front within a moist and moderately unstable airmass. As the line progressed eastward, embedded cells within this line produced severe wind gusts at multiple locations of the local marine areas.

View location on OpenStreetMap → (29.2600, -89.9600)

Source: NOAA Storm Events Database, event_id 1311395. Narrative written by the NWS forecast office that issued the report.