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Marine Thunderstorm Wind · Lake Superior

Marine Thunderstorm Wind July 18, 2020 · Sand Is To Bayfield Wi, Lake Superior

40 mph

Measured gust (35 kt)

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

What the National Weather Service wrote

A gust to 40 mph was recorded at the Devils Island Lighthouse station DISW3.

The wider storm

An area of low pressure and a cold front moved across the Northland on the afternoon and evening of the 18th. Ahead of the cold front, dew points surged into the 70s and, coupled with the cold front, led to the development of a few supercell thunderstorms that moved across the region. The storms developed over north-central Minnesota during the afternoon and pushed eastward through northwest Wisconsin during the evening hours producing damaging winds and large hail as they pushed across the area.

Began near Devils Island Lighthouse Station Disw3 (47.0800, -90.7300).

Source: NOAA Storm Events Database, event 907363. Narratives are written by the National Weather Service forecast office that issued the report.

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