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Severe WX April 1-2 (overnight) Severe Weather Event

Somewhat off topic, but considering what date it is I really hope people under the gun today are taking this threat 100% seriously.

On April 1, 1946, a massive earthquake caused a tsunami that devastated multiple towns in Hawaii - and before it struck there were reports that some people thought the tsunami warnings were a joke.

159 people died in Hawaii that day.
 
A lot of attention (understandably) on OK tonight...

But keep a very close eye on Northern IL tomorrow for a relatively early EF3+ tornado threat. Surface low/triple point will be sitting right under the nose of the 500mb upper jet. Quite a few models develop an isolated supercell or two in this region. Wind profiles paired with solid instability will likely be highly conducive to strong tornadoes. This hodograph may not seem your typical plains or dixie large and looping profile, but this specific shape (subtle curve, very strong storm relative inflow) has a long history of very powerful tornadoes.

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This is obviously a fairly conditional risk, and the whole larger warm sector to the SE will be also primed for severe weather tomorrow, but I thought it might be mentioning as it may end up catching some by surprise I feel. Will have to track morning observations carefully to see if this threat remains tomorrow...
 
All eyes are on central Oklahoma (understandably so) but I pulled this sounding from the Wichita area off the 21z GFS. Not really sure what to make of it. Any thoughts?

(Sorry for the photo of a computer screen, I pulled this up on our work computer)
 

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All eyes are on central Oklahoma (understandably so) but I pulled this sounding from the Wichita area off the 21z GFS. Not really sure what to make of it. Any thoughts?

(Sorry for the photo of a computer screen, I pulled this up on our work computer)
Unfortunately, the pic isn't showing up for me.
 
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