i want to introduce marie colby with the american red cross.e actually on the highway driving a car when the storm hit, right? >> yeah. i was on the highway, turned off onto the interstate. i was trying to get under an overpass, try to get some protection. we started seeing debris flying around. we saw this whole wall of debris coming right at us. >> there was somebody -- a young man who came to -- hiding with you? >> yeah. there was a guy who was in a car behind us. we got out of his car and tried to lay down in the ditch. when the rain came, it started to wash him away. he stood up, got hit by a couple pieces of debris and came and started pounding on the side of my door, trying to get in. the wind was so strong we couldn't open the door until the eye of the tornado got there. >> incredible. >> we were able to open it, pull him in before the rest of the tornado really hit. >> a tractor-trailer truck got flipped? >> yeah, several tractor-trailers. one right in front of us that just flipped over. lifted up completely off the ground and slammed

. >> reporter: marie colby couldn't believe her eyes. >> you could see all the stuff flying through the air. big, huge chunks hitting the car. and they we saw a semitruck in front of us flip over and another one up and over a little ways get picked up, thrown in ]> the air and actually tossed over into the ditch. >> reporter: but no one knew the enormity of the destruction till daybreak. well over 100 and counting among the confirmed dead. six miles of debris. more than 2,000 buildings damaged.xd to give you an idea of the path and the power of this tornado, take a look at what it did to a massive chunk of the roof of this walmart. just lifted it completely off. but then look at the incredible swath that it cut. some three to four miles. in the tattered distance, that tiny little building is, in fact, the seven story st. john's hospital. destroyed cars lined streets. roofs torn from homes and buildings. leading to a facebook page created for people looking for information about lost loved ones. governor nixon urged people to focus on saving those who were possibly still trapped in that