It's with immense satisfaction that I share my first ever lead author journal article. This also the first paper from my PhD. I'm exploring PAR to observe and study of lightning echoes. In short, PARs allow us to better observe and understand lightning. https://t.co/gm38naCT3m

Previsão convectiva de hoje (17/11/2025), válida até 12Z de amanhã.

New video of the Rio Bonito do Iguacu upclose. Notice the suction vortices dancing around the main tornado circulation.

I Had the opportunity to talk to the OU undergrads about the South American tornadoes alley and the tornado outbreak that unfolded in November 7.

2025 appreciation post! My best year on this planet so far

Moore '13 reincarnated, spinning clockwise. CCTV footage of the Salto do Iguacu/Rio Bonito do Iguacu/Porto Barreiro/Laranjeiras do Sul/Condoi F4 seen from a farm was posted by @Catve.

We have updated the reports of the November 7 severe and tornado outbreak. Damage tracks were also added for the confirmed tornadoes. Rio Bonito do Iguace to Candoi remains as preliminary F4, and so does the Candoi to Guarapuava F3. A new tornado track was added in Maua da Serra.

Sequence of images (more in the comments) of the most impressive images of the damage of the Tornado de Rio Bonito - PR. Good evidence of a vioTOR: Ground Scouring, peeled hardwood trees bark stripped off, cars thrown away, family homes leveled or their upper floor destroyed

Yet another video of the Rio Bonito do Iguacu F4 going through town. Please give credit to Everton Dias Paulo as I have no intention to take credit.

Perhaps the clearest video of has come out just now as the tornado was entering the city of Rio Bonito do Iguacu.

New footage of the Rio Bonito do Iguacu F4 as it was nearing the city. Forward to 1:10 minutes. https://t.co/LU9MSVFiib

Footage of the Rio Bunito do Iguaçu beast has surfaced. All credits to JOSE VITOR BESEGATO

Preliminary storm reports from last Friday. at least 8 torandoes have been observerd in Brazil, and the number will increase. Moreover, Rio Bonito do Iguacu received a preliminary rating of F4, and Guarapuava of F3.

This data is from the Chapeco radar that is well maintained by the @DefesaCivilSC, and is located at ranges beyong 150 km from the actual tornadoes, so artifacts such as NBF will hamper a clear cut TDS. Still, is some of the scans shown had some debris lofted at higher heights.

Meanwhile, another storm to the north is suspected to have produced tornadoes near Nova Laranjeiras and Laranjeiras do Sul, and then the observed tornado in Turvo. (3/n)

The storm cycled over western Candoi, and seemed to put a new circulation to the north that would eventually cause another storng tornado in Guarapuava. (2/n)

Radar imagery of the Rio Bonito do Iguacu tornado as it was striking the municipality. The tornado likely started in Quedas do Iguacu, made a b-line to Rio Bonito do Iguacu, then struck rural areas of Porto Barreiro, Virmond, and Condoi. (1/n)

A better video of the tornado sweeping through the heart of Rio Bonito do Iguaçu. 5 dead and 700 injured

People struck by the Rio Bonito tornado.

Another Misiones (AR) tornado.

Another tornado - this time caught on camera - occurred near Turvo, Parana. Damage has been reported to the city limits. I do not own this video and would to credit the two gentlemen for their calmness when recording it. Whoever you are, you deserve a medal