FelipeFreitas
Member
Francisco Beltrão, state of Paraná, Brazil - 2015
This tornado received no rating.
This tornado received no rating.
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Significant Tornado Events
- Thread starter locomusic01
- Start date
MNTornadoGuy
Member
Some of that damage looks potentially violent.
MNTornadoGuy
Member
Out of all the tornadoes in South America, the 1973 San Justo tornado was by far the strongest, possibly the strongest recorded anywhere outside the United States. Large factories were leveled, a tractor was thrown 546 yards, homes were completely swept away with debris being granulated, an engine block was embedded in a concrete wall, cars were reduced to scrap metal, intense ground scouring occurred and trees were severely debarked.
Attachments
Juliett Bravo Kilo
Member
The best collection of damage photos of the San Justo tornado I've been able to find. Yeah, this thing was definitely an F5, and this is probably the most violent tornado damage I've seen outside of the United States.
1. https://web.archive.org/web/2013052...011/03/tornado-ef5-en-san-justo-santa-fe.html
2 more articles:
1. https://translate.google.com/transl....org/wiki/Pasillo_de_los_Tornados&prev=search
2. https://translate.google.com/transl...wiki/Tornado_de_San_Justo_en_1973&prev=search
Juliett Bravo Kilo
Member
It was a surprisingly violent tornado despite being spawned from an exceptionally high cloud base, there was only a 2% area for tornadoes when it touched down.
Here is a study down on it by NWS:
So the Lawrenceburg, TN F5 of 1998 apparently produced very intense ground scouring, with at least one grassy pasture reportedly reduced to bare soil and dirt clumps. Unfortunately, I haven't been able to find photographs of this, but it was apparently Philadelphia, MS-like, with the earth deeply plowed up in some areas. I was however, able to find photos of another pasture that the tornado moved though, and produced similar deep scouring, albeit on a smaller scale. You can see it caused deep, patchy scouring almost identical to that produced on 4/27 by Cordova, Smithville, and Philadelphia. I believe this is likely a hallmark indicative of a remarkably violent Dixie-alley event, with the strange appearance being caused by dense, clay-laden southern soil being dug up by extremely violent suction vortices. I wonder if there are other incidents of this kind of scouring that occurred in historic Dixie events, but have been lost to time?
Also, in case anyone hasn't seen the Cordova scouring, as it doesn't get mentioned much. Like I said, very similar.
Also, in case anyone hasn't seen the Cordova scouring, as it doesn't get mentioned much. Like I said, very similar.
I'd say at least EF3 for sure. Why no rating?
I used to think that there was little to no debarking in Washington IL(2013/11/17) just like other violent tornados in this area but clearly I was wrong. There were considerable debarking in its peak but what really impressive was that all these big trees only had its largest branches or trunks leave behind.
I am no botanist at all but the tree species here seems different from those in Joplin, Moore or Pakersburg.
Debris from houses churned into very small pieces in the field and low level debarking also can be noticed.
wind rowing feature was obvious around these slabs
It also should be noticed that this tornado was extremely fast moving. It moved through 46.4 miles in 48 mins, compared to Smithville MS EF5 moved through about 37miles in 43 mins and Rainsville EF5 moved through 34 miles in 37 mins. These all extremely fast moving tornados, which means the damage above was made in a few seconds. It's also intrersting that most of these fast moving tornados always had very narrow core compared to its width when in the peak intensity such as Bassfield MS or Smithville MS. But EF4+ damage width was over 200m inside the town which was relatively big compared to its overall width.
I am no botanist at all but the tree species here seems different from those in Joplin, Moore or Pakersburg.
Debris from houses churned into very small pieces in the field and low level debarking also can be noticed.
wind rowing feature was obvious around these slabs
It also should be noticed that this tornado was extremely fast moving. It moved through 46.4 miles in 48 mins, compared to Smithville MS EF5 moved through about 37miles in 43 mins and Rainsville EF5 moved through 34 miles in 37 mins. These all extremely fast moving tornados, which means the damage above was made in a few seconds. It's also intrersting that most of these fast moving tornados always had very narrow core compared to its width when in the peak intensity such as Bassfield MS or Smithville MS. But EF4+ damage width was over 200m inside the town which was relatively big compared to its overall width.
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MNTornadoGuy
Member
Where did you find these photos?So the Lawrenceburg, TN F5 of 1998 apparently produced very intense ground scouring, with at least one grassy pasture reportedly reduced to bare soil and dirt clumps. Unfortunately, I haven't been able to find photographs of this, but it was apparently Philadelphia, MS-like, with the earth deeply plowed up in some areas. I was however, able to find photos of another pasture that the tornado moved though, and produced similar deep scouring, albeit on a smaller scale. You can see it caused deep, patchy scouring almost identical to that produced on 4/27 by Cordova, Smithville, and Philadelphia. I believe this is likely a hallmark indicative of a remarkably violent Dixie-alley event, with the strange appearance being caused by dense, clay-laden southern soil being dug up by extremely violent suction vortices. I wonder if there are other incidents of this kind of scouring that occurred in historic Dixie events, but have been lost to time?
Also, in case anyone hasn't seen the Cordova scouring, as it doesn't get mentioned much. Like I said, very similar.
MNTornadoGuy
Member
New damage photographs of the May 6 1965 Mounds View tornado. Cinder-blocks were chopped up, vehicles severely mangled and debris was wind-rowed.
Attachments
Juliett Bravo Kilo
Member
The Lawrenceburg, TN ones can be found here in this report: https://www.weather.gov/media/ohx/PDF/april1998stormdata.pdf
The Cordova ones can be found on an extremeplanet: https://extremeplanet.wordpress.com...outbreak-vs-the-2011-tornado-outbreak-part-i/
Juliett Bravo Kilo
Member
That soil photograph from Lawrenceburg is interesting, it looks like a large object was bounced into the soil several times and made those marks.So the Lawrenceburg, TN F5 of 1998 apparently produced very intense ground scouring, with at least one grassy pasture reportedly reduced to bare soil and dirt clumps. Unfortunately, I haven't been able to find photographs of this, but it was apparently Philadelphia, MS-like, with the earth deeply plowed up in some areas. I was however, able to find photos of another pasture that the tornado moved though, and produced similar deep scouring, albeit on a smaller scale. You can see it caused deep, patchy scouring almost identical to that produced on 4/27 by Cordova, Smithville, and Philadelphia. I believe this is likely a hallmark indicative of a remarkably violent Dixie-alley event, with the strange appearance being caused by dense, clay-laden southern soil being dug up by extremely violent suction vortices. I wonder if there are other incidents of this kind of scouring that occurred in historic Dixie events, but have been lost to time?
Also, in case anyone hasn't seen the Cordova scouring, as it doesn't get mentioned much. Like I said, very similar.
Here's spectacular footage of it. Around 3:30 it hits a house. The rapid forward speed and rotation of the funnel are quite impressive:
CheeselandSkies
Member
Thanks for also providing the new link to Extreme Planet! I thought it was down.
Juliett Bravo Kilo
Member
I randomly stumbled across the new link for it via google image search, I wonder why he hasn't updated it since 2013 or so.
Juliett Bravo Kilo
Member
Hackleburg did some similar damage to this, such as exhibited below (trying to find more pics of it):
Juliett Bravo Kilo
Member
Given my interest in Dixie Alley events and the Tri-State Tornado, I felt like posting these clips of the Hackleburg. First off, this video is from a storm chase, the incredible forward speed of the tornado is evident throughout (see how quickly it comes to reaching the videographer):
1.
2.
This is a classic video of it, so ghostly how it sounds and how quickly it moves through:
3.
5:20 in this vid is the most notable, the width and scope of this thing:
4.
This pic of Hackleburg:
These videos and pictures of the Hackleburg tornado are what most likely match the Tri-State's appearance as a "rolling cloud" hanging low to the ground and moving very fast. So eerie looking at these pics and just how dangerous it was to be caught in the path of a tornado back in 1925. Obviously it's not fun now, but at least we have warnings and public recognition of how to take shelter and the like. Folks back then simply had eyesight and not much else in terms of tornado preparation.
1.
2.
This is a classic video of it, so ghostly how it sounds and how quickly it moves through:
3.
5:20 in this vid is the most notable, the width and scope of this thing:
4.
This pic of Hackleburg:
These videos and pictures of the Hackleburg tornado are what most likely match the Tri-State's appearance as a "rolling cloud" hanging low to the ground and moving very fast. So eerie looking at these pics and just how dangerous it was to be caught in the path of a tornado back in 1925. Obviously it's not fun now, but at least we have warnings and public recognition of how to take shelter and the like. Folks back then simply had eyesight and not much else in terms of tornado preparation.
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MNTornadoGuy
Member
I view Hackleburg as the best analog we have to the 1925 Tri-State tornado. They both produced a long swath of EF4/EF5 or F4/F5 damage and had very long paths.
Juliett Bravo Kilo
Member
They were also rain-wrapped, fast-moving wedges riding a 'boundary' of some sort and very deadly. They were also both around 1.25-1.3 miles at their widest. Of course, Hackleburg's deadliness is much more shocking given how well-prepared people in the path of it were, whereas Tri-State it's somewhat not surprising given the lack of knowledge of tornadoes and a public warning system back then. Also, the Yazoo City, MS tornado of 2010 is probably a pretty good analog for Tri-State as well, it was on the ground for 149.25 miles for 164 minutes and maxed out at 1.75 miles in width. It left a massive stretch of F3-EF4 damage along almost it's entire path so it undoubtedly achieved EF5 intensity but didn't hit any DI's capable of registering it. The only reason it only killed 10 people is because the majority of it's path was through unpopulated forestland and farmland, only clipping the southwestern side of Yazoo City.
Juliett Bravo Kilo
Member
Yazoo City, in addition to being struck by an EF4 on April 24, 2010 was also struck twice on November 29, 2010 by two EF2 tornadoes that both touched down within 20 minutes of one other, pretty crazy. A town struck 3 times in the same year by a tornado, what is the deal down there in Dixie Alley? Also, Cordova, AL was struck twice in a row on 4/27/11, an EF3 in the morning and the long-track EF4 in the late afternoon.