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Tornado Anniversaries

The main July 19th event was in 2018, with intense tornadoes striking Marshalltown and Pella.






https://m.youtube.com/playlist?list=PLcSVZ2OhUGvyUoZZlzDoSjY7OWPCmeLtY
https://m.youtube.com/watch?v=FOVeMgxijto&pp=ygUUSnVseSAxOSAyMDE4IHRvcm5hZG8=
https://m.youtube.com/watch?v=2JkwIqbuWHg&pp=ygUUSnVseSAxOSAyMDE4IHRvcm5hZG8=
https://m.youtube.com/watch?v=dTz47aEDmkQ&pp=ygUUSnVseSAxOSAyMDE4IHRvcm5hZG8=
https://m.youtube.com/watch?v=IdYHPiK4okY&pp=ygUUSnVseSAxOSAyMDE4IHRvcm5hZG8=
https://m.youtube.com/watch?v=OGuXcQMp87o&pp=ygUUSnVseSAxOSAyMDE4IHRvcm5hZG8=

But, IMO, more important in the grand scheme of things: Twisters made its US debut one year ago today.

https://www.reddit.com/r/tornado/comments/1m49pre/1_year_of_twisters_review/
https://m.youtube.com/watch?v=MKKn11w4a4w
https://m.youtube.com/watch?v=jgdh2KDgbh0

No map today because the Redditor didn't upload it.
 
July 21: Will have to edit this post in more detail at a later date. Notable events included the Teton-Yellowstone F4 of 1987...


...and a few F4s in Iowa and Minnesota.

Map:
 
7/26: the day of the Reserve, MT EF3 in 2010. A very good argument can be made for EF4 for this tornado, which was likely Montana's strongest. Sadly, there were 2 fatalities.



Further details:
Unrelated to the current discussion but I strongly suspect the 7/26/2010 Reserve tornado was worthy of an EF4 rating and the actual strongest tornado in Montana's recorded history. The state's only official F4 (Glendive 1961) is not listed as a significant tornado by Grazulis and from what I've heard was literally a brief touchdown in an empty field. The Reserve tornado on the other hand completely destroyed the Smith Ranch at its peak intensity, sweeping away every building on the property with the exception of one quonset hut that was flattened regardless. A two-story ranch house was swept clean, and two people were killed there despite sheltering in the home's basement. In addition, a pickup truck was thrown a quarter mile, a combine was rolled "several times" per the NWS survey and left a mangled mess, and grain bins full of grain were obliterated, including one that had its foundation cracked. Though the ranch home was not well anchored, the damage seems pretty consistent with other tornadoes rated low-end EF4 including Pocahontas 2011 and Keota 2023 (the homes impacted in those cases were also not well constructed, but the contextual damage was still used to rate those tornadoes as violent including a combine wrecked in a very similar fashion by the Pocahontas County EF4).

Footage of the thing:


Screenshot_2021-05-08_Microsoft_Word_-_Sheridan_County_Tornado_Event_Summary__Final__-_sheridan2010_.png

View attachment 23057
View attachment 23058
Screenshot_2021-05-08_Microsoft_Word_-_Sheridan_County_Tornado_Event_Summary__Final__-_sheridan2010_.png


For reference, the combine in Reserve:
Screenshot_2021-05-08_Microsoft_Word_-_Sheridan_County_Tornado_Event_Summary__Final__-_sheridan2010_.png


The combine in Pocahontas (unlike Reserve this is a plowed farm field):
TORD_Pic.JPG

I think Reserve would have almost certainly gotten an F5 rating had it occurred before 1970 or so. I don't think it's an EF5 candidate though. Couldn't find any notable ground scouring or a scar on satellite imagery, nor did it debark trees (though it was more than likely capable of producing at least partial debarking to hardwoods, but I don't know how many trees it encountered considering that area of Montana is extremely remote). The similarly violent 2011 Almena, KS tornado also should have been rated EF4 since it not only managed to do both but actually picked up and threw heavy farm implements a considerable distance (a quarter mile if I'm not mistaken?)
 
7/26: the day of the Reserve, MT EF3 in 2010. A very good argument can be made for EF4 for this tornado, which was likely Montana's strongest. Sadly, there were 2 fatalities.



Further details:

Thanks I posted this above @Lake Martin EF4
 
Ok, here we go...

(Copy/pasted from my YouTube description):

On August 18th, 2005, Wisconsin experienced what still stands as its record single-day tornado outbreak, with 27 occurring in the state. The most significant of these was a high-end F3 which tracked for 20 miles through residential subdivisions on the northern edge of the city of Stoughton, in southeastern Dane County. The house where my parents and I lived at the time (and they still do) is in one of these subdivisions. The tornado missed us by less than 1/4 of a mile, and the one man who died in it (I believe still the last tornado-related fatality in southern Wisconsin to date) lived on the opposite end of the same subdivision.

I was 19 at the time and about to start my sophomore year in college. I had long had a fascination with severe weather and tornadoes from childhood and intended to take up storm chasing at some point. For a long time I was angry at myself for not being more prepared on this day and ready to get better footage (a quick YouTube search will unveil the many incredible videos which exist of this tornado, captured by several people who lived not far away). I felt like the atmosphere had tried to hand me the ultimate "backyard chase" and I botched it. You never actually see the tornado itself, just debris falling out of the sky beneath violently churning clouds over our house before I ran for cover (portions of the audio muted because I was shouting like an idiot), and then the structure on the back edge of the supercell thunderstorm after it had moved off and was producing a series of weaker tornadoes north of Lake Koshkonong/west of Fort Atkinson.

Most of this footage has never been seen before on YouTube. I had the damage tour section on my old channel, uploaded about a year and a half after the fact in YT's old, lousy 240p resolution, but that was about it.



AI-upscaled screen capture of the thumbnail; the back side of the supercell after the tornado had passed, with a rainbow:

050818_Storm_04-transformed.jpeg

Our driveway strewn with small tree debris in the immediate aftermath:

08_18_03.jpg

Looking into our neighbor's yard, several large downed limbs are visible:

08_18_04.jpg

Large tree downed across the street (the trunk was hollow, so not quite as impressive as it looks):

08_18_06.jpg

My dad chainsawing a path for his van after getting back from work:

08_18_08.jpg

08_18_09.jpg

Looking across our backyard the next day, note piece of structural debris in the foreground:

08_19_01.jpg

Remarkably, only one of the plant stands on our screened-off porch section of the back deck was blown over (ironically, this same plant stand was bequeathed to me by my parents when I moved out, it's currently supporting the petunias on my apartment balcony):

08_19_04.jpg

Two days later, on August 20th, we took a more extensive tour of the damage. Part 1 here since it'll bump up against the attachment limit.

There were two houses here at the intersection of Spring & Skaalen Roads, they both disintegrated and were "slabbed," but all the debris ended up in the trees immediately downstream:

08_20_02.jpg

Garage collapsed onto the vehicle inside:

08_20_03.jpg
 
Last edited:
Part 2...

Three houses and a shed with partial roof damage. I imagine these only received a glancing blow from the tornado:

08_20_04.jpg08_20_05.jpg

Distant views (the neighborhood was thoroughly cordoned off at this point, inaccessible to "outsiders" apart from first responders/cleanup crews) of the most heavily-damaged area, along the south shore of Lake Kegonsa between Country Club Road and Skyline Drive. Most of these houses were still standing at least partially, but a few were "flattened" in what could be considered low-end (E)F4 fashion, with no walls standing but most of the debris remaining in a pile. La Plata syndrome of course dictated that they go with high-end F3, but given the isolated nature of that type of damage and overall lack of slam-dunk violent contextual indicators, I don't think it's an egregiously lowballed rating:

08_20_07.jpg08_20_08.jpg

This historic (1890s) farmhouse about 1/2 mile to our east, while still standing, had extensive structural damage including complete removal of the roof. It had to be torn down and a replica built:

08_20_09.jpg

This house, on the north end of our neighborhood had partial roof loss, but otherwise shifted off the foundation and down the hill in one piece. A textbook "slider":

08_20_11.jpg

The neighbor's house had partial roof loss, as well as loss of several of the large trees surrounding it, but was otherwise intact:

08_20_12.jpg

Across the street from the previous two, this house lost the roof and parts of the exterior walls. In addition, I believe this was the house where the fatality occurred. A severe case of bad luck given the relatively light damage to surrounding houses; he was on his way to the basement to take shelter when the chimney collapsed on him:

08_20_13.jpg

On August 26th, an arborist working on the trees in our backyard, to remove those limbs that were damaged but hadn't completely fallen...yet:

08_26_01.jpg
 
Behold, the closest Wisconsin has come to a violent tornado since 1996. It's the iconic Stoughton day!




 
Behold, the closest Wisconsin has come to a violent tornado since 1996. It's the iconic Stoughton day!





 
Yes, kds86 is right. OTD 18 years ago, we got the good ol' Northwood tornado!






https://www.youtube.com/watch?v=c2wsd5TtN8o&pp=ygUUbm9ydGh3b29kIG5kIHRvcm5hZG8=
https://www.youtube.com/watch?v=B2S5d14cklk&pp=ygUUbm9ydGh3b29kIG5kIHRvcm5hZG8=
https://www.youtube.com/watch?v=INtoYtzKXiY&pp=ygUUbm9ydGh3b29kIG5kIHRvcm5hZG8=
 
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