A "catastrophic" tornado has moved through the Little Rock, Arkansas area, according to the National Weather Service, and several tornadoes have been reported in Tennessee, Iowa, and Illinois. The National Weather Service issued a Tornado Emergency for portions of the metro area of Little Rock on Friday afternoon, stating that a "damaging tornado" moved through the area. Professional storm chaser Zachary Hall, from Vortex Chasing, spoke with LiveNOW's Andrew Craft from Arkansas after tracking tornadoes across the state