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Marine Thunderstorm Wind · Lake Michigan

Marine Thunderstorm Wind August 9, 2025 · Rock Island Passage To Sturgeon Bay Wi, Lake Michigan

75 mph

Estimated gust (65 kt)

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

What the National Weather Service wrote

Thunderstorms produced strong winds over the Lake Michigan waters near Newport State Park.

The wider storm

A line of thunderstorms produced strong winds over the bay of Green Bay and Lake Michigan during the evening hours on Saturday (8/09) as well as a brief waterspout over Eagle Harbor on the bay of Green Bay.

Began near Gills Rock (45.2183, -86.9670).

Source: NOAA Storm Events Database, event 1281032. Narratives are written by the National Weather Service forecast office that issued the report.

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