Walsh Medical Media

Heading : Methods

Collected data and evidence

Supposed tornado causes damage in the interior of Parana: An alleged tornado hit the city of Rio Branco do Ivaí, north of Paraná, on Wednesday afternoon [<a href="#7" title="7">7</a>], according to the city's municipality. The Simepar Meteorological Institute said it has not yet evaluated the phenomenon. "We have not had information yet, let's look at the case," said meteorologist S Paz, According to the mayor of the municipality, GC Rosa, the strong wind caused havoc in the city. "We had damages in the gymnasium of sports, our block was completely destroyed and six houses were discovered, mainly in the rural town D Izalino. Trees fell and interdicted streets, utility poles were damaged leaving part of the city without electricity grid, "he said. A city hall staff works to free the interdicted places. The orientation of the city hall is that the affected families seek the Civil Defense and the Social Action Secretariat of the municipality. The bulletin released at 12th this Thursday [<a href="#8" title="8">8</a>] by the Civil Defense of Paraná indicates that 20 people were hit and seven houses were damaged [<a href="#2" title="2">2</a>].

Thunderstorm: Gale in Rosario do Ivai and Rio Branco do Ivai: In Tuesday, June 6, 2017 reports of residents of some neighborhoods, such as Caneleira and Vila União (Rosario do Ivaí), are that animals that died and houses were damaged. In Rio Branco Ivaí, there were also havoc and images of a funnel cloud. Residents of Rural Districts of Rosario de Ivaí, called the report of the Blog of Berimbau and Radio Nova Era, to report that a gale hit some locations, among them Bairro da Caneleira and Vila União. "It looked like a tornado, it was taking everything, destroying houses and even causing animals to die, like cattle," said a farmer living in Vila União. Another rural producer said tomato greenhouses and other cultures, have also been damaged. By telephone, H Sílva, a contributor to our report, also brought personal accounts of the affected regions, narrating the moments of fear and concern. In Rio Branco do Ivaí, it also rained hard and residents came to make the video of a cloud funnel, stating that it was a tornado. The mayor issued a note, through the advisor F Barbosa, with the following information: "Rio Branco do Ivaí was hit by a tornado; houses were discovered in the Rural Village D Izalino and next to the gymnasium of sports Cidão. A few days later, our press office together with sports secretary, Mr. G Oliveira, were in the affected areas, thank God no one was injured, only material damages. M Gerôncio was also accompanying and lamented the fact, "says a note from the city of Rio Branco. (Collaboration of P Gruber and Letícia, from Rio Branco do Ivaí, and H Silva, Rosario, and Soldiers from cup officer on duty [<a href="#3" title="3">3</a>].

Forecasting for Tuesday, June 6, 2017: With the accumulated rains of yesterday and this dawn we have already passed from the expected to the month of June. This autumn has already surpassed the autumn of last year, which had already been rainy in the months of April and May. The fall of this year already had rain above the historical average in the month of April (35%), May (155%) and June until today in the morning (3%). The current national climate models put rain above the historical average for that month, around 50 mm, not reached until that moment. Normality for the month of July and above the average for August. We are in climatological neutrality with a tendency to warm up, but without reaching the El Niño [<a href="#31" title="31">31</a>].

Analysis of images

For the accomplishment of this work the images of satellite GOES 13/NOAA/USA-Infrared Channel more enhancement, available 06/06/2017, local time: 06:40, South of Brazil. Central and South America and the Caribbean, Cooperative Institute for Research in the Atmosphere, Colorado State University, USA, modified by LabClima/ UNIVALI., (Figure 4).

A reanalysis of the National Centers for Environmental Prediction (NCEP) model. The processing and analysis of the data were performed in the decoded and separated into their quantified RGB color channels. The technique consists of the analysis of the pixels of the images of primary light sources [<a href="#32" title="32">32</a>].

The images were obtained from the REDEMET (Meteorology Network of the Aeronautics Command) website for June 6, 2017, from 2:30 p.m. to 8:30 p.m. (UTC) at 30 minute intervals. The images are in the visible spectral, in black and white. They represent the reflectance factor from zero to 80%. The images were obtained from the REDEMET (Rede de Meteorologia do Comando da Aeronáutica. GTREDEMET) website for June 6, 2017, from 2:30 p.m. to 8:30 p.m. (UTC) at 30 minute intervals. They are highlighted and indicate the temperature from 45°C-90°C.

The analyzes of the GOES-13 satellite were used observing the formation and dissipation of the storm along 06/06/2017, with a temporal resolution of approximately every 30 minutes. Then, the gray level (Nc), for the brightness temperature (Tb) was analyzed using the following equation:

Tb=320-(0.625 Nc) (1)

The images analyzed for Tb were classified in order to find areas that had the lowest Tb values, thus indicating more intense convection. The classification adopted was unsupervised, that is, the user does not properly determine the classes that are to be found by the classifiers [<a href="#33" title="33">33</a>].