Wow that is a really cool map! You can see the warm air from the gulf come up and hit the cool air from the north, You can really see the rotation!
Oh yeah, weve known for a few days today was going to produce tornadoes. Earlier SPC issued what was it a 20% ch of tornadoes? Mesoanalysis showed SBCAPE levels (surface based convective available potential energy) upwards of 2750 j/kg which is pretty high along with the strong deep layer shear and the amount of moisture...add that with the instability/lift trigger and woot!