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Marine Thunderstorm Wind · Lake Superior

Marine Thunderstorm Wind July 21, 2016 · Portage Lake To Huron Is Mi To Lower Entrance of Portage Canal To Huron Is Inc Keweenaw and Huron Bays, Lake Superior

47 mph

Measured gust (41 kt)

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

What the National Weather Service wrote

The Keweenaw Bay buoy 45025 measured a peak thunderstorm wind gust of 47 mph.

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 (46.9500, -88.4100).

Source: NOAA Storm Events Database, event 653054. Narratives are written by the National Weather Service forecast office that issued the report.

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