in the segment we visit mickey davis one of the mothers who tragically lost her son. she's pushing very hard to get these new codes into schools. because it is difficult to retrofit buildings. this involved building new forms of construction based on the advice of texas tech university, and involved much thicker walls, and slightly different designs compared to conventional ways of building schools. it has to start from scratch, but some schools we visited one in the segment in oklahoma, they did use advice from the university to construct a gym that also doubles up as a community shelter. it seems to be very effective. we see that through the testing. >> well, i want to tease this, we don't want you to answer the question, but you're going to tell us what it's like to stand in front of an ef 3 tornado. it's good to see you. happy that you're still here. >> yes, for a fluid that was really fun. thank you. >> we'll be bam with the nation's weather forecast. >> every sunday night >> meteorologist: i'm dave warren with a look at the national forecast. freezing rain advis