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Marine Thunderstorm Wind · Lake Superior

Marine Thunderstorm Wind July 21, 2016 · Point Isabelle To Lower Entrance of Portage Canal Mi, Lake Superior

69 mph

Estimated gust (60 kt)

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

What the National Weather Service wrote

There was a public report of multiple trees down on either side of the Portage Canal near Jacobsville.

The wider storm

An upper disturbance approaching from the west interacted with a very warm and unstable air mass to produce strong to severe thunderstorms over Lake Superior on the morning of the 21st.

Began near Keweenaw Lower Entrance Light (47.0000, -88.4300).

Source: NOAA Storm Events Database, event 651605. Narratives are written by the National Weather Service forecast office that issued the report.

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