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Marine Thunderstorm Wind · Gulf of Mexico

Marine Thunderstorm Wind August 17, 2025 · Lake Ponchartrain and Lake Maurepas, Gulf of Mexico

43 mph

Measured gust (37 kt)

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

The Mandeville Lakefront Weatherflow station XMLV measured a marine thunderstorm wind gust of 41 mph or 36 knots.

The wider storm

A typical summertime pattern was in place across the region, with intense daytime heating and abundant low-level moisture leading to the development of numerous afternoon thunderstorms. The storms were primarily outflow-driven, producing locally strong and gusty winds. A couple storms produced severe marine wind gusts.

Began near Mandeville Lakefront - Xmvl Weatherflow (30.3600, -90.0900).

Source: NOAA Storm Events Database, event 1292987. Narratives are written by the National Weather Service forecast office that issued the report.

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