I'll be honest, I've been slightly stunned at the moisture/temps expected in this which gives me actually more confidence than what we had last week. We've had a fishing/camping trip planned for sometime out by Columbia, SC so to see mid to upper 80s this weekend shows the dynamic nature of this system.
I know I am certainly a hobbyist in this field but the thing that gives me quite a bit of pause is the strength of the low shown on the Euro. Last week we were dealing with a system at 998 MB I believe at its strongest, while the Euro shows a rapidly deepening low for this week that may very well go sub-990. I'd say the vast majority of outbreaks I've dealt with in the past had this very feature, a strong deepening low sparking off overachieving cells that spawn violent tornadoes.