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Marine Thunderstorm Wind · Lake Superior

Marine Thunderstorm Wind September 15, 2018 · Silver Bay Hbr To Two Hbrs Mn, Lake Superior

46 mph

Measured gust (40 kt)

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

What the National Weather Service wrote

This was the highest wind gust reported by the M/V Paul R. Tregurtha.

The wider storm

Storms developed along a stationary boundary. One supercell storm produced large hail before a line of storms formed to the north and brought strong winds to far western Lake Superior into St. Louis Bay.

Began near Silver Bay Station Slvm5 (46.9730, -91.3575).

Source: NOAA Storm Events Database, event 784292. Narratives are written by the National Weather Service forecast office that issued the report.

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