Significant Tornado Events

[Shakespeare2016]

Can’t see what’s there. Wants me to subscribe to see the content.

It doesn't have much info so just don't worry about it. There used to be damage photos and the damage survey from Grand Forks, ND.

 

[pohnpei]

Another overlooked tornado is the Roanoke, IL tornado of 2004. Completely demolished a manufacturing plant. Some of the most impressive damage to an industrial building.






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Finally, some before & after pics of the plant:

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The car damage of Roanoke tornado was also quite intense and the video appearance of this tornado was impressive.

 

[Shakespeare2016]

Here is some information on how the Barnes County, ND formed. https://journals.ametsoc.org/doi/full/10.1175/2007WAF2006109.1

 

[pohnpei]

Here is some information on how the Barnes County, ND formed. https://journals.ametsoc.org/doi/full/10.1175/2007WAF2006109.1

Thanks for this! Haven't read this before.

 

[Shakespeare2016]

The car damage of Roanoke tornado was also quite intense and the video appearance of this tornado was impressive.
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That is some pretty impressive vehicle damage.

 

[Shakespeare2016]

T

Thanks for this! Haven't read this before.

Your welcome. There used to be damage photos out there. One well-built/anchored home was reduced to a slab of concrete with very little to no visible debris left. Additionally a huge semi truck was flung 1/4 to 1/2 mile through the air.

 

[bjdeming]

"Philadelphia style" is a reference to this:



This tornado struck areas near Philadelphia, MS during the April 27, 2011 Super Outbreak. These trenches were up to 3 feet deep in places.

Thank you. Now I remember that gouging was mentioned.

My jaw dropped when that one man jumped down into the hole!

The damage to the land in that video does remind me of images of liquefaction and lateral spreading (like the first one under "Cyclic Mobility" here, though those cracks paralleling the shore are something else related to earthquake effects; I just mean the whole area change).

In the video you shared, look at how sod clumps sit "high and dry," for instance, as though what was under them flowed away (and probably up and outwards in that situation).

Just because powerful tornadoes leave a muddy path doesn't mean that all came from rainwater -- could be from the soil, too, though I can't imagine how to test that.

This is complex, but I did find a reference for tornadoes transferring energy to the ground: perhaps non-seismologists could get access to the whole article through a university library?

Here's a list of papers that cited the above 2001 article, including a fairly recent one from the American Meteorological Society.


What do experts say about these effects from the Smithville EF5 (photos from this post)?

 

[Juliett Bravo Kilo]

Thank you. Now I remember that gouging was mentioned.

My jaw dropped when that one man jumped down into the hole!

The damage to the land in that video does remind me of images of liquefaction and lateral spreading (like the first one under "Cyclic Mobility" here, though those cracks paralleling the shore are something else related to earthquake effects; I just mean the whole area change).

In the video you shared, look at how sod clumps sit "high and dry," for instance, as though what was under them flowed away (and probably up and outwards in that situation).

Just because powerful tornadoes leave a muddy path doesn't mean that all came from rainwater -- could be from the soil, too, though I can't imagine how to test that.

This is complex, but I did find a reference for tornadoes transferring energy to the ground: perhaps non-seismologists could get access to the whole article through a university library?

Here's a list of papers that cited the above 2001 article, including a fairly recent one from the American Meteorological Society.


What do experts say about these effects from the Smithville EF5 (photos from this post)?

All I can say about the Smithville tornado is that it's touchdown point and much of its initial path was just east of a man-made waterway, so possibly the soil was a bit looser due to being in close proximity to a body of water but ultimately I doubt it. This scouring occurred right after it reorganized itself and went multivortex, so likely it was from one of an intense suction vortex, much like the Philadelphia ground scouring.

 

[Juliett Bravo Kilo]

The Crystal Lake, Illinois tornado of Palm Sunday 1965 did this, and the entire family hiding in the basement was killed. Pretty amazing.

 

[Shakespeare2016]

The Crystal Lake, Illinois tornado of Palm Sunday 1965 did this, and the entire family hiding in the basement was killed. Pretty amazing.View attachment 3393

What happened to them? Were they crushed by debris or sucked out of the basement? That is terrible.

 

[Juliett Bravo Kilo]

What happened to them? Were they crushed by debris or sucked out of the basement? That is terrible.

I should have added that. They were crushed by the pickup, no joke. Some tornadoes just aren't survivable no matter what you do, it seems.

 

[pohnpei]

Only in a few cases that a security camera can survive a violent tornado and here was some of them and the aftermath of the places that the camera was. These kinds of video had a full representation of how scray inside a violent tornado.
2008 Pakersburg IA EF5 First State Bank


I am very sure that the beginning of this video is some of the strongest wind Ihave ever seen in all kinds fo footage, TC or tornado.
aftermath: the bank was rated EF2


2011 Joplin MO EF5 East Middle School


Joplin had several surveillance footage, this one in East Middle School probably the most famous one. It was rated EF2 with winds of 125mph
aftermath

source:https://www.academia.edu/25105277/Performance_of_Concrete_Masonry_Buildings_in_the_Joplin_Tornado

2012 Henryville IN EF4 Henryville Junior-Senior High School


There were much more different angeles can be found in Youtube. Damge photo showed clearly multi-vortex pattern(the gym right-below of the image can be damaged by a sub vortex). Damage here was rated EF4 I believe.
aftermath


2013 Washinton IL EF4


I don't know where this place excatly located and what's the rating of this house but certainly a scray video to watch.

2015 Rochelle IL EF4


Though not a security camera but easily one of the most scary tornado footage of all time, very sad that the man shot this video lost his wife.
aftermath:It was rated high end EF3

I once saw surveillance video from Moore Medical Center several years ago but can't find it now.

 

[pohnpei]

Some very violent car damages from 2001 Seward NE F4 tornado.

 

[pohnpei]

I find I am a little confused about when was the real starting time of Jarrell TX F5 torando,
Based on this paper:https://journals.ametsoc.org/doi/full/10.1175/MWR3301.1
The starting time was determined at 20:25.
But based on NCDC, the starting time was determined at 20:40.
It may depends on whether this long roped and tilted feature tornado being classified into the beginning of Jarrell tornado


It has been mentioned in NCDC database that eyewitnesses indicated the damage path may not have been made strictly by one tornado. Also in this video, we can see that rope tornado at one time looked like it was going to dissipate. But after a very short time, the tornado came back again and there seems like it had a a small chance that the circulation was constantly on the ground during this period.

 

[Juliett Bravo Kilo]

Alright so I got some impressive photos of damage done in Palm Sunday 1965.

Some photographs of damage done by the Dunlap tornado:






Intense debris granulation near Sheridan, IN



Damage in Greentown:


Mangled car near Pittsfield, Ohio



Damage at Crystal Lake, Illinois

 

[Juliett Bravo Kilo]

Some more.

Damage in Toledo:



Damage at La Paz Indiana. Can't believe this thing only got a rating of F3



Damage done by the Manitou Beach-Devils Lake Michigan tornadoes:

 

[warneagle]

I doubt this is a controversial opinion but I think both Dunlap tornadoes, Coldwater, Toledo, and Strongsville were all probably F5 strength. All five completely swept away several well-built structures.

 

[Juliett Bravo Kilo]

I doubt this is a controversial opinion but I think both Dunlap tornadoes, Coldwater, Toledo, and Strongsville were all probably F5 strength. All five completely swept away several well-built structures.

I really do wonder what the basis was for downgrading them.

 

[Juliett Bravo Kilo]

Might as well post this classic video of the Andover tornado going through McConnell AFB...these people caught it up close & personal as it was just beginning to go into multivortex mode. They really have no idea how lucky they are that they weren't completely engulfed by it:

 

[Shakespeare2016]

Might as well post this classic video of the Andover tornado going through McConnell AFB...these people caught it up close & personal as it was just beginning to go into multivortex mode. They really have no idea how lucky they are that they weren't completely engulfed by it:

I work right over by where the Andover, KS tornado came through in 1991.