i'm veronica delacruz. this morning a trail of destruction. in iowa a state of emergency in parts of that state where a tornado hit a 5th of one town. >> get back! >> reporter: the tornado slammed into iowa saturday evening without warning. >> it happened so fast. we were about 50 yards away from it. we had a dust swirl and before we knew it, we had a full blown tornado on the ground. >> reporter: leaving blocks of the small town shattered. hail and a sunday full of cleaning up to parts of the carolinas and virginia. >> the storm follows days and heat in some places. >> spans wildfires, a foot of snow in arizona. >> this time of year, we see the temperature swings driven by a jet stream moving from the winter into the summer mode. and the battle is what is helping to fuel the storms. >> forecasters warn the danger is not over yet. bringing the potential for dangversus weather to 40 million people across 20 states. frances coe, nbc news. >> in washington, the government may have averted a shut done. but already a battle is brewing. one in which