Yep. NWS Little Rock is going to review the enhanced area of damage in Wynne, AR today - which included that partially levelled home with a bent anchor bolt. That could be a possible candidate for EF4 damage yet for some reason I am not really thinking it will. I doubt Little Rock tornado itself will go EF4, yet when you get EF3 165mph tornadoes a small part of me always questions if that will go up. I haven't seen anything from the long tracked TN tornado, though it wouldn't surprise me if they found some low end EF4 tree or structure damage - but that wouldn't happen unless they actually found some in the first place. The tornado that crossed the Mississippi river would have most certainly done violent damage had it hit anything, but fortunately for now I don't think it did.Yeah, based on my own uneducated guess, we may have one or two more storms from Friday with the chance to be rated EF4. I think there may still be some DIs coming from the southern mode that could yield an upgrade. I mean one EF4 during an outbreak isn’t anything to sneeze at as well.
I also agree, any outbreak with high tornado numbers, around 60-70+ tornadoes (which I reckon this one will be soon enough), and multiple violent tornadoes is one I really consider as being very significant, only occurring a few times a decade.