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Marine Thunderstorm Wind · Lake Superior

Marine Thunderstorm Wind October 5, 2023 · Point Isabelle To Lower Entrance of Portage Canal Mi, Lake Superior

48 mph

Measured gust (42 kt)

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

What the National Weather Service wrote

The State of Michigan vessel reported a max thunderstorm wind gust to 48 mph in Keweenaw Bay.

The wider storm

Forcing and instability ahead of a low pressure system moving across the region spawned strong to severe thunderstorms and isolated waterspouts over portions of Lake Superior during the afternoon of the 5th.

Began near Keweenaw Lower Entrance Light (47.0000, -88.3000).

Source: NOAA Storm Events Database, event 1139999. Narratives are written by the National Weather Service forecast office that issued the report.

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