2024-05-21 EVENT: IA/IL/MO/KS/OK/AR

I started a report page wow what a day. East of red oak somewhere we were very lucky that people didn't get hit by that tornado cuz large metal went over the road at that time.
 
Can anyone think of a significant outbreak that happened with storms right on a surging cold front? I can't. So my current plan is to focus on storms ahead of the front.
I might be imagining things, but it looks like many of the storms in southern Iowa / northern Missouri are just ahead of a diffuse cold front, possibly outrunning it. And indeed there are now some storms further out into the warm sector near the IA/MO border.

05212024 2245Z.png
 
I saw this solution on yesterday evenings HRRR run which seemed to show a phasing of the initial line which was replaced by a separate line out ahead of the initial main QLCS... I don't know if that was due to enhanced confluence or not, I see that on occasion but it's definitely happening.

another thing, looking at the Hodo and the cross over winds, it just seems like todays tornadic producing cells were , well, radar "ugly". I'm guessing both the 1-3km SVC wasn't lined up well next to the 4-6KM winds on top of it? (in terms of photogenic and radar presentation)

Next Day Edit

I just saw Jeff Duda's post above... yup, what he said! lol.
 
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A personal comment:

A chaser (I don't think he is affiliated with StormTrack) posted a photo of the tornado going through also hard-hit Caroll IA yesterday with a big debris cloud and said the image was "beautiful." While I get what he meant, believe me, no one outside of our community thinks a tornado with a cloud of the objects of peoples' lives is "beautiful."

Please be mindful of what we say and write in these circumstances. Thanks for considering.
 
I had to post this.taken from RT video of the greenfield tornado and compared the sub vorticy pictured to Leigh orf's 10m resolution simulation presentation at the 100th annual AMS conference of vorticity magnitude. It was pretty amazing to see modeling come to life like that.
 

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