My neighbor has been erecting cell towers in the area for several months. They took their boom truck and skid steer in to town this week to help out.
He was showing me pictures on his phone...
a photo of a BIG tree, with a pair of large steel rails wrapped tightly against it, and on the other side the cab and rear end of 2 1/2 ton, box/delivery truck
a D8 CAT tossed about 50 yards, they weigh ~15 tons
incredible power!
The search & rescue folks are expecting the death toll to increase.

Joplin was originally a coal, strip mining town.
Most of the old, homes wiped off earth were worth from $40 to $60K and will cost double that to replace.
Lots of similarities to Katrina/New Orleans.