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Marine Thunderstorm Wind · Lake Superior

Marine Thunderstorm Wind July 6, 2020 · Manitou Island To Marquette Mi Beyond 5nm From Shore, Lake Superior

45 mph

Measured gust (39 kt)

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

What the National Weather Service wrote

Peak thunderstorm wind gust of 48 mph observed at the Granite Island Light GLOS observing station.

The wider storm

A cold front moving through a moist and unstable air mass produced strong thunderstorms over portions of Lake Superior on the afternoon and evening of the 6th.

Began near Marquette (46.7200, -87.4100).

Source: NOAA Storm Events Database, event 906721. Narratives are written by the National Weather Service forecast office that issued the report.

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