I already blogged about NearCast earlier today, but I wanted to show how it actually verified.  Storms initiated on the boundary and as they moved into the unstable air, they became stronger as the followed the unstable air.  Also, the storms that formed in the lighter blue actually began to weaken as more stable air moved in.  The storms moved like this model showed from NW to SE.  I would use this for storm motion for sure! ~Vollmar