Significant Tornado Events

[Marshal79344]

Just found this image of the tree damage from the 2009 San Pedro tornado and good god. This thing was definitely stronger than Lone Grove and Murfreesboro. Almost all the trees and shrubbery are snapped off very low to the ground and significantly debarked. Eyewitness accounts describe very heavy hail and rain accompanying the EF4 tornado, there was no way they knew what was coming at them until they heard it, and by then it was too late, for most homes there have 0 shelter or basement.

 

[warneagle]

I admittedly know next to nothing about tornadoes in South America. Is that sort of messy, HP mode the most common there?

 

[MNTornadoGuy]

Just found this image of the tree damage from the 2009 San Pedro tornado and good god. This thing was definitely stronger than Lone Grove and Murfreesboro. Almost all the trees and shrubbery are snapped off very low to the ground and significantly debarked. Eyewitness accounts describe very heavy hail and rain accompanying the EF4 tornado, there was no way they knew what was coming at them until they heard it, and by then it was too late, for most homes there have 0 shelter or basement.
View attachment 5047

Some photographs of damage and satellite imagery also appear to show possible ground scouring in some areas.

 

[pohnpei]

I admittedly know next to nothing about tornadoes in South America. Is that sort of messy, HP mode the most common there?

Pasillo de los Tornados - Pasado y presente - Google My Maps

Este es un pequeño proyecto en marcha que tiene como finalidad tener un registro de todos los tornados que ocurren en la zona comprendida por; Brasil, Paraguay, Uruguay y Argentina. Toda la data que se encuentra aquí es gracias al; SMN (Servicio Meteorológico de Argentina), el INMET (Instituto...

www.google.com

I used to search some of the South Amercia tornados on this website but it didn't update in recent years.
It had some pretty decent looking tornados occasionally

Some tornados in 2017 in South Amercia, the first three pics was from an F3 tornado that year.

 

[pohnpei]

And some footages of 2016 Dolores Uruguay F3 tornado was one of the most insane outside of US.(Especially the fourth one, making me jaw dropping the first time I watch.)

 

[pohnpei]

Some additional information about 2009 San Pedro tornado

 

[MNTornadoGuy]

And some footages of 2016 Dolores Uruguay F3 tornado was one of the most insane outside of US.(Especially the fourth one, making me jaw dropping the first time I watch.)

Some pictures of damage from that tornado.

 

[MNTornadoGuy]

Vehicle damage from the 2009 San Pedro tornado.

 

[FelipeFreitas]

Em 7 de setembro de 2009, um violento F4 atingiu o vilarejo de Tobuna, na Argentina. Ele varreu várias casas de suas fundações e produziu alguns danos muito intensos às árvores.

On that same date, three tornadoes were registered in the state of Santa Catarina, Brazil.
The strongest affected the rural region of Guaraciaba and killed 6 people (same tornado that affected San Pedro, Argentina)

 

[FelipeFreitas]

Coxilha, Rio Grande do Sul - 2018

 

[FelipeFreitas]

Coxilha, Rio Grande do Sul - 2018



Before


After

 

[FelipeFreitas]

Brazil has no responsibility for the study and classification of tornadoes, which is why most are underestimated or called microexplosion here.

This tornado occurred in August 2005 in Muitos Capões, state of Rio Grande do Sul and was classified as F1 / F2. As you can see in the images, this was possibly at least F4.

 

[FelipeFreitas]

Palmas, state of Paraná, Brazil - 1959 - 35 killed

 

[FelipeFreitas]

Canoinhas, estado de Santa Catarina, Brasil - 1948 - 23 mortos

 

[MNTornadoGuy]

Palmas, state of Paraná, Brazil - 1959 - 35 killed

View attachment 5085

Southern Brazil and Argentina seem to experience a lot of intense tornadoes. It’s like the tornado alley of the Southern Hemisphere. It does make me wonder if there were any recent possible EF/F5 tornadoes that were “missed” in the area.

 

[Juliett Bravo Kilo]

I'm beginning to think that Brazil and southeastern South America in general, is more prone to violent tornadoes than previously thought, like China. Check out this insane tree damage from a tornado earlier this year near Agua Doce, Brazil. Whole forest of debarked trees here, almost like Bassfield, MS. No official rating was assigned as far as I know, but based on this tree damage, i'd say this tornado reached EF4 intensity as it traversed dense forest. Damage in more populated areas along the path was less intense, thankfully.

This is a translation from English, but it does appear that South America as it's own 'Tornado Alley': https://translate.google.com/transl...i/Pasillo_de_los_Tornados&prev=search&pto=aue

Also, you may be interested in the Encarnación, Paraguay tornado of 1926 that supposedly killed 300 people. This a Spanish forum with some pics of damage: http://foro.gustfront.com.ar/viewtopic.php?t=1556

A YouTube video of the aftermath:


The setup is interesting: you have the large pampas (plains) where cold air from Patagonia and Antarctica collides with warm, moist air from areas of Brazil, northern Argentina and Paraguay, and dry air from the Andes. I wonder if the Amazon rainforest plays a role in tornadogenesis down there, be interesting to see studies done on that, and if deforestation of it may have an effect on tornado formation down there. I also can't help but wonder if perhaps a massive wedge has ever gone through the Amazon Rainforest and no one was around to see or hear it? Not likely with the vast amount of people that live in, near or around it but who knows?

 

[Juliett Bravo Kilo]

Southern Brazil and Argentina seem to experience a lot of intense tornadoes. It’s like the tornado alley of the Southern Hemisphere. It does make me wonder if there were any recent possible EF/F5 tornadoes that were “missed” in the area.

The setup is interesting: you have the large pampas (plains) where cold air from Patagonia and Antarctica collides with warm, moist air from areas of Brazil, northern Argentina and Paraguay, and dry air from the Andes. I wonder if the Amazon rainforest plays a role in tornadogenesis down there, be interesting to see studies done on that, and if deforestation of it may have an effect on tornado formation down there. I also can't help but wonder if perhaps a massive wedge has ever gone through the Amazon Rainforest and no one was around to see or hear it? Not likely with the vast amount of people that live in, near or around it but who knows?

 

[MNTornadoGuy]

Radar images of the supercell that would go on the produce the 2009 San Pedro tornado. It looks like it was a discrete isolated HP supercell.

 

[Austin Dawg]

I know you guys have moved the conversation but I found a photo of the area where my brother and nephews lived in Smithville and marked it with a red arrow. You can see just how close it was to the area where F5 damage was. The boys had left 5 minutes before the storm to go to their mom's house in Amory and the rear flank downdraft pushed their truck off the road. Scott was at work 45 minutes away. They were so lucky. Across the street was a cemetery as well that had headstones moved. He said there were fire hydrants ripped out of the ground and manhole covers thrown.

I also saw somewhere where we have been around 8 years since our last F5.

 

[FelipeFreitas]

I admittedly know next to nothing about tornadoes in South America. Is that sort of messy, HP mode the most common there?

Yes, these two videos (first from Xanxerê, Santa Catarina in 2015 and the second from Tangará, Santa Catarina in 2020) show this well.