Weak Tornado Confirmed in Shawano County

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Damage surveys by the National Weather Service and Shawano County emergency management confirmed a weak tornado hit a few miles northwest and north of Gresham during the afternoon of May 17. The tornado first touched down about 3:31 pm and produced intermittent tree damage along a nearly five mile long path, dissipating at 3:40 pm. The tornado was witnessed at a farm northwest of Gresham. This is the first tornado in Wisconsin this year.

Tornado path (preliminary data).

The tornado was associated with a "mini" supercell thunderstorm and produced only minor damage.

Doppler radar at 3:35 pm showing reflectivity hook echo (left) and rotation (right) in the velocity.

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