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Significant Tornado Events

I just always wonder why there are 200mph Ef4 DIs. It makes no sense to me, especially considering that it is literally 1 MPH from Ef5. 1! What difference is that 1 going to make? And if one is giving out large numbers of them in a small area, are we sure NONE of these houses are Ef5?
 
About Bremen, something i’ve always wondered is why Ethan (June First) is so impressed with the damage at the 190 MPH DI compared to a lot of the poured concrete anchor bolted homes that were swept away/obliterated in the Deer Creek subdivision in Rochelle. Especially when considering the odd construction of the home in Bremen.
I believe it was because because part of the houses slab was shattered and carried away.
 
I just always wonder why there are 200mph Ef4 DIs. It makes no sense to me, especially considering that it is literally 1 MPH from Ef5. 1! What difference is that 1 going to make? And if one is giving out large numbers of them in a small area, are we sure NONE of these houses are Ef5?
Lyza covered this 200 MPH craziness pretty well in his paper earlier this year.
 
I just always wonder why there are 200mph Ef4 DIs. It makes no sense to me, especially considering that it is literally 1 MPH from Ef5. 1! What difference is that 1 going to make? And if one is giving out large numbers of them in a small area, are we sure NONE of these houses are Ef5?
Yeah none of these homes are EF5, the survey for Rochelle was rushed, one of the 200 DI at a farmstead was at most mid-range EF3. The homes in the neighborhood are EF4/185 maxed
 
I believe it was because because part of the houses slab was shattered and carried away.
It looks that way but this isn’t really the case. I’ve gone over this a few times but I’ll bring it up again. That Bremen house was not a traditional poured slab foundation home. It was a CMU foundation home that essentially had a relatively thin concrete subfloor on top of it. While that concrete floor was indeed broken and displaced, it wasn’t a true “slab foundation” and we don’t actually know in what manner it was attached to the CMU.
 
It looks that way but this isn’t really the case. I’ve gone over this a few times but I’ll bring it up again. That Bremen house was not a traditional poured slab foundation home. It was a CMU foundation home that essentially had a relatively thin concrete subfloor on top of it. While that concrete floor was indeed broken and displaced, it wasn’t a true “slab foundation” and we don’t actually know in what manner it was attached to the CMU.
As far as i remember, the home also sat on top of gravel (sorry for being condescending earlier)
 
It looks that way but this isn’t really the case. I’ve gone over this a few times but I’ll bring it up again. That Bremen house was not a traditional poured slab foundation home. It was a CMU foundation home that essentially had a relatively thin concrete subfloor on top of it. While that concrete floor was indeed broken and displaced, it wasn’t a true “slab foundation” and we don’t actually know in what manner it was attached to the CMU.
Oh whoops. After seeing the images again, the garage has a poured foundation but the house doesn’t.
 
Yeah none of these homes are EF5, the survey for Rochelle was rushed, one of the 200 DI at a farmstead was at most mid-range EF3. The homes in the neighborhood are EF4/185 maxed
I believe that Rochelle deserved Ef5. It did textbook Ef5 damage and extreme contextual damage, such as buckeye mentioned, lawn scouring and severe debarking.
 
rochelle ain't deserving of a ef5 rating
Why not? It certainly did extreme damage and swept well anchored houses away. Also, lawn grass is hard to pull up. Have you ever gone to your yard and tried to rip up the grassy top layer? It’s well in there. Plus, it has comparatively little sideways surface area for winds to push against. There was also the moved concrete walkway, indicative of extreme surface winds. I don’t mean to sound angry, and I’m not trying to start an argument, this is just my opinion and I cannot convey emotion through an internet post in arial font at 9 pm.
 
As far as i remember, the home also sat on top of gravel (sorry for being condescending earlier)
Yes there was a gravel aggregate fill between the CMU and the concrete subfloor.

Also you’re good dude. I will say this, I’ll concede and admit I cannot say for sure the construction crew didn’t half-money maker washer installation at Deer Creek. Of course it’s possible. I just simultaneously can’t pretend that lawn scouring and wind rowing isn’t significant.
 
Yes there was a gravel aggregate fill between the CMU and the concrete subfloor.

Also you’re good dude. I will say this, I’ll concede and admit I cannot say for sure the construction crew didn’t half-money maker washer installation at Deer Creek. Of course it’s possible. I just simultaneously can’t pretend that lawn scouring and wind rowing isn’t significant.
What are the most textbook examples of extreme contextual damage on an Ef5 level in your opinion?
 
Why not? It certainly did extreme damage and swept well anchored houses away. Also, lawn grass is hard to pull up. Have you ever gone to your yard and tried to rip up the grassy top layer? It’s well in there. Plus, it has comparatively little sideways surface area for winds to push against. I don’t mean to sound angry, and I’m not trying to start an argument, this is just my opinion and you cannon convey emotion through an internet post in arial font at 9 pm.
"Also, lawn grass is hard to pull up. Have you ever gone to your yard and tried to rip up the grassy top layer? It’s well in there." Just because its hard to pull out doesn't mean its evidence for EF5 intensity, EF4 can still easily do it. "swept well anchored houses away." Well anchored doesn't automatically mean EF5.
 
"Also, lawn grass is hard to pull up. Have you ever gone to your yard and tried to rip up the grassy top layer? It’s well in there." Just because it’s hard to pull out doesn't mean it’s evidence for EF5 intensity, EF4 can still easily do it. "swept well anchored houses away." Well anchored doesn't automatically mean EF5.
Can you give an example of an Ef4 tornado that did extreme lawn scouring? Also, one of the MAIN FACTORS in rating is how well anchored a building is, I’m not saying that’s all, it is, but it’s a significant part.
 
Can you give an example of an Ef4 tornado that did extreme lawn scouring? Also, one of the MAIN FACTORS in rating is how well anchored a building is, I’m not saying that’s all, it is, but it’s a significant part.
Grass scouring caused by the Gary, SD EF3 tornado. And for the second part, one of the homes had an abundance of cut nails usages as its anchoring so EF5 is out of the window for that home. The third photo home has the bolts too spaced out. The fourth photo home, not only theres quite a bit of debris left on the foundation, there's also shrubbery left unaffected. Not too mention some of these homes likely had garage failure
 

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Any sort of ground scouring is unreliable to be honest, and those debarking can easily be debris loaded
1.) That take on scouring is a steaming pile of absolute stinking bs. Grass scouring, and specifically lawn scouring, is highly correlated to tornadoes of extreme intensity. I just typed out a multi paragraph post on how I’ve been cataloging every violent, hell, every intense tornado of my life time, and many prior. While a lot of scouring (like farm field scouring) is overhyped, instances the scouring and removal of all surface vegetation, particularly lawn grass, only occurs in the immediate vicinity of very high end damage. It’s not like you ever see properties with basically no grass left, and the house left in an unswept heap or with walls intact, barring some western/central Oklahoma counties where the ground is more scour prone. It otherwise simply does not happen.

If I were to put together a statistical analysis of every tornado that scoured grassy surfaces, especially lawns, down to exposed dirt, the correlation between this occurrence and high-end events would be undeniable. I am sick and tired of people throwing out these dismissive generalizations without even coming close to having amassed the amount of observational note taking on instances of grass scouring that I have, over the course of a decade and a half of note taking to boot. There’s a reason why people like LaDue and Marshall still consider it a high-end hallmark. You clearly think you’re really saying something big and well-informed, but trust me, you’re not. I literally cannot express how big the disparity is between the validity you think your stance has, and how little it has in reality. Abysmally stupid take, and I can’t stress that enough.

2.) Debris loading is only a significant factor in putting less weight in contextual damage if it can be linked to a specific airborne material. All significant tornadoes that impact semi-populated are debris loaded. If there’s no specific link to a specific airborne material, the debris loading argument is a vague generalization soaked nothing burger.
 
Grass scouring caused by the Gary, SD EF3 tornado. And for the second part, one of the homes had an abundance of cut nails usages as its anchoring so EF5 is out of the window for that home. The third photo home has the bolts too spaced out. The fourth photo home, not only theres quite a bit of debris left on the foundation, there's also shrubbery left unaffected. Not too mention some of these homes likely had garage failure
That’s farm field scouring, like I literally just mentioned, you absolute knuckle dragger. You simultaneously don’t know what you’re looking at, nor what you’re talking about.
 
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