Walsh Medical Media

Heading : Introduction

A vortex originating from a cumulonimbus cloud, tapering toward the ground, and touching it is called a tornado. Feared and admired by man, the tornado is an atmospheric phenomenon that can cause a catastrophe to pass through [<a href="#1" title="1">1</a>]. If it reaches an unsuspecting and unprotected population on inhabited urban and rural properties, it can lead to human losses and serious material damage. It causes serious losses with the death of wild and farmed animals [<a href="#1" title="1">1</a>].

On June 6, 2017, an alleged tornado hit the municipalities of Rio Branco do Ivaí and Rosario do Ivaí, located in the state of Paraná, southern Brazil. The images of the alleged tornado have been disseminated on social networks and in several newspapers in the country [<a href="#2" title="2">2</a>,<a href="#3" title="3">3</a>]. Videos with one or more alleged tornadoes were made and disseminated on social networks such as youtube, whatsapp, facebook, blogs, among others, by several residents of stricken cities, on the afternoon of June 6, 2017, in the municipalities of Rio Branco do Ivaí and Rosário do Ivaí [<a href="#2" title="2">2</a>,<a href="#3" title="3">3</a>]. Local officials reported the damage caused by the alleged tornado, causing a large number of homeless, with the destruction of houses, as well as the killing of animals and the destruction of rural properties. The occurrence of tornado had not been confirmed by the country's meteorological institutes [<a href="#2" title="2">2</a>-<a href="#4" title="4">4</a>].

A search was initiated to verify the probable cause of the losses and damages caused in these municipalities, by the supposed tornado.

The videos posted by the local residents on social networks [<a href="#2" title="2">2</a>-<a href="#4" title="4">4</a>] and images obtained by meteorological satellites were collected on the REDEMET website, in the visible spectrum and highlighted infrared channel, as well as the image of the GOES 13/NOAA/USA-Infrared Channel highlighted [<a href="#5" title="5">5</a>].

The meteorological phenomenon caused the destruction of urban properties - with the destruction of houses, and in the gymnasium of sports, that was completely destroyed. In rural properties and localities, property damage and the death of livestock and wild animals, causing counties of Rosário do Ivaí and Rio Branco do Ivaí [<a href="#2" title="2">2</a>-<a href="#4" title="4">4</a>].