View attachment 7748
Slabbed home in Greensboro
View attachment 7749
Probably the most intense damage I've seen from the entire outbreak. Trees snapped and appear to have been partially debarked. Also ground scouring? Not sure. I do believe the empty slab was most likely an outbuilding however.
One thing I always paticularly notice about when determining the intensity of tornados in Dixie was the treefall pattern due to the feature of its high moving speed.(often 50 or 60mph)
A tornado with rotational wind speed only slightly higher than its transitional speed(like 60 or 70mph) can leading to trees bent or uprooted in mainly one direction or being unregular like these pictures you showed, then causing EF0/1 structure damage if there are buildings nearby. That is because of the nature of its high moving speed would lead to almost no winds in the weaker side of the tornado.
And I find two cases of these types of treefall damage with structure damage avilable nearby to further prove it
2021 Shoal Creek AL tornado:
2019 Beauregard tornado in GA section:
When rotational wind speed of the tornado being moderately higher than tornado's moving speed(like 120 or 140 mph), trees would bent or uproot in different direction(towards center) and shows a little symmetry. But the winds on the weaker side of the tornado are not strong enough to fully bent or unroot a large section of the forest and the damage in the weaker side of the tornado can be siginificantly weaker than the stronger side.
I also find one case with structure damage nearby to further prove it.
Bassfield near Seminary. there were several EF3 rating houses in this place. Compare damage between stronger and weaker side of the tornado wike red circle:
When rotational winds are siginifantly higher than tornado's moving speed, the treefall pattern can show much more regularity than previous case and the structure damage nearby can easily go into EF4 level.
Beauregard tornado 2019 at peak intensity with EF4 level structure damage 800 yards from this forest:
2011 Rainsville's treefall pattern near Lingerfeldt Road (also known as County Road 180) with EF4/5 strructure damage:
2021 Greensboro tornado with clear defined center line and many trees were tossed along the center line :
With the center line labeled as red arrow, you can see the structure damage right side of the picture wasn't in the center line which the damage should be strongest:
2021 Greensboro tornado with symmetrical treefall pattern, very identical to Beauregard's treefall pattern:
a larger viewer of treefall pattern of Greensboro with very well defined center line. Trees from both side bent towards the center.
When rotational winds far far exceed tornado's moving speed which is very rare can lead to extremely symmetrical and regular treefall pattern. The structure damage nearby should be EF5 level(or well into EF5 level) if the building are well built enough.
Hackleburg tornado 2011 with EF5 structure damage nearby:
And I find these two arcticles about tornado tree damage was very interesting to read.
Research Highlights: Simulations of treefall patterns during tornado events have been conducted, enabling the coupled effects of tornado characteristics, tree properties and soil conditions to be assessed for the first time. Background and Objectives: Treefall patterns and forest damage assessed...
www.mdpi.com
Abstract Damage surveys in the aftermath of tornadoes occurring in the forested regions of the Mogollon Rim in northern Arizona have been assessed using the enhanced Fujita scale (EF scale) damage indicator (DI) and degree of damage (DOD) tables. These surveys often revealed different DODs...
journals.ametsoc.org
I also posted some additional treefall pattern pictures in there:
So many older events (New Richmond, Fergus Falls, Sherman, Tri-State) are said to have ripped railroads from the ground but I've never been able to find photographs of this. This photo you've presented here looks a lot like Chapman, KS 2016 in terms of deforming rails instead of ripping them up...
talkweather.com