roared. there is significant damage and gas leaks throughout the city of 2600. this weekend. >> a very pronounced funnel cloud and tornado in progress. >> reporter: over 70 reported from south dakota to texas. >> there goes the school. there goes the school. >> this video shows the tornado hitting a high school in iowa. the school shelters 100 people. all evacuated in the nick of time as tornado sirens flared. another tornado ripping through a small south dakota town damaging over 20 buildings. >> i step outside, there is no wind. no rain. no noises and then i can hear the howling. it sounded like an airplane. >> tlafrs the first tornado i have ever seen in my life. >> reporter: on saturday a tornado hit eastland texas, storms dumped rain and baseball sized hail on parts of oklahoma