Marine Thunderstorm Wind · Lake Superior

Marine Thunderstorm Wind July 20, 2011 · Point Isabelle To Lower Entrance of Portage Canal Mi, Lake Superior

49 mph

Measured gust (43 kt)

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

What the National Weather Service wrote

Wind gust measured at buoy 45025 in the Keweenaw Bay. Golf ball-sized hail was also observed near Chassell from this same storm.

An approaching warm front produced severe thunderstorms near Chassell and over the Keweenaw Bay on the morning of the 20th.

Began near Keweenaw Lower Entrance Light (46.9677, -88.4214).

Source: NOAA Storm Events Database, event 332813. Narratives are written by the National Weather Service forecast office that issued the report.

See every tornado that passed near a place you know, measured to its path.