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Messages
920
Location
Missouri
2018 was a crazy year for tornadoes in Wyoming. 3 EF3s occurred during the year in that state.

6/1/2018 Oriva Hills Subdivision EF3:
A 136 mph EF3 tornado moved through a subdivision of homes NW of Gillette. Numerous homes were damaged or destroyed and a dual-axle dump truck was tossed 250 yards.
997557


6/6/2018 Laramie EF3:
This photogenic tornado moved through rural areas north of Laramie WY. Several steel poles were bent 90 degrees at the base and grass was scoured in a 1/3 mile wide swath. In some areas, grass was scoured to bare soil. This tornado was also accompanied by an EF2 satellite.
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unknown.png


7/28/2018 Sheep Mountain EF3:
An intense tornado moved through rural areas on the northern slopes of the Laramie Mountains. Large cottonwood trees were stripped of all but the largest limbs while some smaller trees were partially debarked, a hut metal tractor building was completely destroyed with debris being carried off, and 7000 lb horse trailers were carried off with only one of the axles being found.
1026845

1026841

It's been a while since I've heard of violent tornadoes in Wyoming. I know Cheyenne was struck by an F3 back in the 70s that may actually have achieved F4 intensity, which is really impressive for a tornado that far west. I wonder what the most intense tornado recorded out west is (aside from the Grand Teton-Yellowstone tornado of 1987). Also, I didn't realize that grass/soil scouring was documented in some of these, really impressive for a western state tornado.
 

locomusic01

Member
Messages
251
Location
Pennsylvania
So, this is really random and only very tangentially related to the topic, but whatever. I was just talking to a guy who lived near New Waterford, OH in 1985 when the tornado hit and totally destroyed his home + garage/tool shop. He mentioned that he had a large air compressor that weighed around a thousand pounds and was anchored to the slab. Apparently it was torn out and thrown into a creek a few hundred yards away.

That was pretty impressive, especially for an F3 tornado (officially), but this is where I go way off-track. I was curious how he went about anchoring the compressor considering the vibration they produce, so I asked him. The secret? Hockey pucks. He drilled them and ran the concrete anchors through them, basically turning them into jumbo-sized anti-vibration washers. And apparently this is like a whole thing that a lot of people do. Maybe I'm just easily amused (in fact, I'm quite sure I am) but I was very happy to learn that.
 

buckeye05

Member
Messages
1,005
Location
Riverside, Ohio
2018 was a crazy year for tornadoes in Wyoming. 3 EF3s occurred during the year in that state.

6/1/2018 Oriva Hills Subdivision EF3:
A 136 mph EF3 tornado moved through a subdivision of homes NW of Gillette. Numerous homes were damaged or destroyed and a dual-axle dump truck was tossed 250 yards.
997557


6/6/2018 Laramie EF3:
This photogenic tornado moved through rural areas north of Laramie WY. Several steel poles were bent 90 degrees at the base and grass was scoured in a 1/3 mile wide swath. In some areas, grass was scoured to bare soil. This tornado was also accompanied by an EF2 satellite.
1000329

1000327

unknown.png


7/28/2018 Sheep Mountain EF3:
An intense tornado moved through rural areas on the northern slopes of the Laramie Mountains. Large cottonwood trees were stripped of all but the largest limbs while some smaller trees were partially debarked, a hut metal tractor building was completely destroyed with debris being carried off, and 7000 lb horse trailers were carried off with only one of the axles being found.
1026845

1026841
Yeah with that kind of grass scouring, I find it highly unlikely that the Laramie tornado was only an EF3. While this tornado was slow-moving, there wasn’t really any significant debris loading to speak of, yet it left only bare soil in some areas. That’s impressive.
 

Marshal79344

Member
Messages
265
Location
Chicago, IL
Yeah with that kind of grass scouring, I find it highly unlikely that the Laramie tornado was only an EF3. While this tornado was slow-moving, there wasn’t really any significant debris loading to speak of, yet it left only bare soil in some areas. That’s impressive.
I mean when the radar shows this type of mesocyclone on velocity, it's usually pretty safe to assume it was higher than EF3

20180606.png
 

zvl5316

Member
Messages
49
Location
State College, PA
I wonder if there were more tornadoes in China today as there were some nasty supercells.
Currently no confirmed tornadoes yet. I think 3 problems cause the difficulty in investigate and statistic of tornadoes in China: First, most of today's TVSs happened in mountainous areas. Also, nearlly all professional tornado investigators in China are currently busy in Wuhan & Shengze and there is not a mature network to report tornado and downburst areas in China. And lastly, fallen trees that can best indicate tornadic wind patterns in rural areas are usually quickly cleaned up and purchased in rural areas of China…… I guess there were definitely some weak tornadoes yesterday but they could be hardly indentified.
 

zvl5316

Member
Messages
49
Location
State College, PA
Considering the tornadoes ignored by official statistics and the significant tornado/weak tornado ratio from careful statistics of NWS, my guestimate is there are on average about 100 tornadoes in China a year in 21th century. Considering the significant decreasing trend of number of tornadoes in China, I guestimate there might be on average about 200 tornadoes and 1 violent tornado a year in China from 1950 to 2000.
 
Last edited:

eric11

Member
Messages
172
Location
Shanghai,China
Special Affiliations
  1. SKYWARN® Volunteer
  2. ARRL Member
Two tough day, AT LEAST A DOZEN OF tornado was confirmed by Chinese Weather Bureau and other sources, and the number is still counting, including the two killer Shengze EF3 and Wuhan EF2(which is very likely to be upgraded to EF3).Keep hearing fatalities from other affected area, so the death toll and injuries may keep rising....This is the worst tornado event since Funing EF4 nation wide and may be one of the strongest tornado outbreak in China since a decade ...
I surveyed the damage in Shengze yesterday, the tornado landed on a farmland and then went directly into downtown Shengze.It only lasted several minutes and covered a short path around 1.25 mi, 80-100 yrd wide according to local survey team (Me and my friend use GE and drones to estimated the path was actually a little bit longer, around 1.5-1.7 mi, though extremely short for tornadoes with such strength).There're more survey teams arriving today so let's see if there's any updates.Me and my friend took a lot of photographs and use drones to investigate and flim the damage path(which I think it's the first time in Chinese history to use a drone filming such high-quality videos during tornado damage survey).I'll update the photos I've taken here and on Twitter, as well as other tornadoes during the outbreak.
 

MNTornadoGuy

Member
Messages
566
Location
Apple Valley, MN
Two tough day, AT LEAST A DOZEN OF tornado was confirmed by Chinese Weather Bureau and other sources, and the number is still counting, including the two killer Shengze EF3 and Wuhan EF2(which is very likely to be upgraded to EF3).Keep hearing fatalities from other affected area, so the death toll and injuries may keep rising....This is the worst tornado event since Funing EF4 nation wide and may be one of the strongest tornado outbreak in China since a decade ...
I surveyed the damage in Shengze yesterday, the tornado landed on a farmland and then went directly into downtown Shengze.It only lasted several minutes and covered a short path around 1.25 mi, 80-100 yrd wide according to local survey team (Me and my friend use GE and drones to estimated the path was actually a little bit longer, around 1.5-1.7 mi, though extremely short for tornadoes with such strength).There're more survey teams arriving today so let's see if there's any updates.Me and my friend took a lot of photographs and use drones to investigate and flim the damage path(which I think it's the first time in Chinese history to use a drone filming such high-quality videos during tornado damage survey).I'll update the photos I've taken here and on Twitter, as well as other tornadoes during the outbreak.
Wow that is an extremely impressive outbreak for China. Also do you know what DI got the Shengze tornado rated as a prelim EF3?
 
Messages
920
Location
Missouri
So, I couldn't fit the US and Canadian portions into the same screengrab, but the map's starting to fill in a bit. Obviously still need to add a number of tornadoes, and some of them here are still a WIP, but it's getting there. What a fascinating and bizarre collection of tracks, though:

View attachment 9583

View attachment 9584

Sweet, you picked one of my choices :)

I've always been fascinated by this outbreak due to the improbability of it occurring at all, especially in the Great Lakes region. One thing I wonder is if there was any violent tornadoes that touched down directly on the Great Lakes and spent all their life over water and thus were never recorded as there wouldn't be any tracks to easily verify.
Getty images has some photographs of the Grand Valley and Barrie F4 damage; the majority aren't that impressive but there's a handful of real instances violent damage (either the result of a narrow core or suction vortex) that can be found in some of them.

Also, will your entry go into detail about the circumstances that led to this event? I'm still not quite sure how it all transpired, since it seems to be a freak occurrence that likely won't happen any time soon.
 

andyhb

Member
Messages
377
Location
Norman, OK
Yeah with that kind of grass scouring, I find it highly unlikely that the Laramie tornado was only an EF3. While this tornado was slow-moving, there wasn’t really any significant debris loading to speak of, yet it left only bare soil in some areas. That’s impressive.
Have a friend who surveyed it, he is convinced it was at least EF4 because of this.
 

eric11

Member
Messages
172
Location
Shanghai,China
Special Affiliations
  1. SKYWARN® Volunteer
  2. ARRL Member
Wow that is an extremely impressive outbreak for China. Also do you know what DI got the Shengze tornado rated as a prelim EF3?
I've heard that one of the EF3 points was given to this debarked hardwood tree I photoed.One of my friends showed them the pic, they discussed several minutes later and decided to attain an EF3 rating, but they also mentioned the incongruity between the tree and the contextual damage, I don't know how to explain this, it's pretty weird. Maybe it was hit by some nasty subvortices?
IMG_20210516_124337.jpg
IMG_20210515_113143.jpg
I believe there were other EF3-level damage since I wasn't able to cover the whole path on the ground. Our drones took a pic of maybe a leveled two story house at the beginning of the path.Some clean might already have been done but we're not sure about that.
1621136161933.jpg
 

locomusic01

Member
Messages
251
Location
Pennsylvania
Sweet, you picked one of my choices :)

I've always been fascinated by this outbreak due to the improbability of it occurring at all, especially in the Great Lakes region. One thing I wonder is if there was any violent tornadoes that touched down directly on the Great Lakes and spent all their life over water and thus were never recorded as there wouldn't be any tracks to easily verify.
Getty images has some photographs of the Grand Valley and Barrie F4 damage; the majority aren't that impressive but there's a handful of real instances violent damage (either the result of a narrow core or suction vortex) that can be found in some of them.

Also, will your entry go into detail about the circumstances that led to this event? I'm still not quite sure how it all transpired, since it seems to be a freak occurrence that likely won't happen any time soon.
I wanna save the photos for my article, but the Barrie tornado produced some really impressive damage. Grand Valley maybe a little less so, but I haven't really gotten too deep into that tornado yet besides getting the path down. Both definitely deserving of violent ratings though.

Some of the "weaker" OH/PA tornadoes may have deserved violent ratings too, IMO. I'd never really paid much attention to many of them, but some were pretty damn impressive.

Honestly, I'm super excited about this one. I thought it might be hard to track down survivors in some of these areas, but I've literally already talked to like 50+ people. It's actually been kinda overwhelming lol

By circumstances, you mean the meteorology of it? If so, yeah, it's pretty fascinating and obviously very unusual. I think that's an important aspect of the story.
 

MNTornadoGuy

Member
Messages
566
Location
Apple Valley, MN
I've heard that one of the EF3 points was given to this debarked hardwood tree I photoed.One of my friends showed them the pic, they discussed several minutes later and decided to attain an EF3 rating, but they also mentioned the incongruity between the tree and the contextual damage, I don't know how to explain this, it's pretty weird. Maybe it was hit by some nasty subvortices?
View attachment 9587
View attachment 9586
I believe there were other EF3-level damage since I wasn't able to cover the whole path on the ground. Our drones took a pic of maybe a leveled two story house at the beginning of the path.Some clean might already have been done but we're not sure about that.
View attachment 9588
Well considering that the tornado wasn’t very large (~100 yards at max) it is a likely that the isolated debarked hardwood trees were due to extremely narrow brief sub-vortices. Another possibility is that the trees were unhealthy.
 
Messages
920
Location
Missouri
Well considering that the tornado wasn’t very large (~100 yards at max) it is a likely that the isolated debarked hardwood trees were due to extremely narrow brief sub-vortices. Another possibility is that the trees were unhealthy.
It reminds me of the debarked tree at Canton Lake 2011 that was right next to a ton of trees that weren't debarked, perhaps an extremely narrow and brief subvortex hit it and dissipated before hitting anything else.
 
Messages
920
Location
Missouri
I wanna save the photos for my article, but the Barrie tornado produced some really impressive damage. Grand Valley maybe a little less so, but I haven't really gotten too deep into that tornado yet besides getting the path down. Both definitely deserving of violent ratings though.

Some of the "weaker" OH/PA tornadoes may have deserved violent ratings too, IMO. I'd never really paid much attention to many of them, but some were pretty damn impressive.

Honestly, I'm super excited about this one. I thought it might be hard to track down survivors in some of these areas, but I've literally already talked to like 50+ people. It's actually been kinda overwhelming lol

By circumstances, you mean the meteorology of it? If so, yeah, it's pretty fascinating and obviously very unusual. I think that's an important aspect of the story.
Yes, the meteorology of it is fascinating.

Also they apparently discovered another F1 tornado that touched down in Ontario after 8 PM that was lost in the initial documentation of the event. https://www.theweathernetwork.com/c...85-outbreak-how-a-lost-14th-tornado-was-found

This photograph of a factory that took a direct hit from the Barrie tornado is a serious candidate for most violent damage to a large building outside of the United States that I've seen. Sorry if this spoils anything.

Barrie 3.jpg
 

eric11

Member
Messages
172
Location
Shanghai,China
Special Affiliations
  1. SKYWARN® Volunteer
  2. ARRL Member
Well considering that the tornado wasn’t very large (~100 yards at max) it is a likely that the isolated debarked hardwood trees were due to extremely narrow brief sub-vortices. Another possibility is that the trees were unhealthy.
Actually, I think both are reasonable assumptions.I checked the bark closely and noticed they're tiny bug holes on it.It really interesting to see a severely debarked tree standing in an unharmed forest.
What convinced me of its EF3 rating is that this wasn't the only debarked tree. ~50 yards south of it, another portions of severe tree damage was discovered, these trees are the same species
This healthy tree was snapped into half and severely debarked
IMG_20210516_131505.jpg
This, uh.....I don't know how to describe it
IMG_20210516_131620.jpg
It looks as if the tree was striken by lightning. Actually, it was twisted by extreme wind direction change at very low ground level
IMG_20210516_131715.jpg IMG_20210516_131726.jpg
The tornado looks like having cheery-picking several trees to annihilate, while left the rest mostly intact.
 

MNTornadoGuy

Member
Messages
566
Location
Apple Valley, MN
Actually, I think both are reasonable assumptions.I checked the bark closely and noticed they're tiny bug holes on it.It really interesting to see a severely debarked tree standing in an unharmed forest.
What convinced me of its EF3 rating is that this wasn't the only debarked tree. ~50 yards south of it, another portions of severe tree damage was discovered, these trees are the same species
This healthy tree was snapped into half and severely debarked
View attachment 9589
This, uh.....I don't know how to describe it
View attachment 9591
It looks as if the tree was striken by lightning. Actually, it was twisted by extreme wind direction change at very low ground level
View attachment 9592 View attachment 9593
The tornado looks like having cheery-picking several trees to annihilate, while left the rest mostly intact.
The way the tree snapped is typical of unhealthy trees.
 

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