When a massive twister hit Joplin, Mo. last night, YouTube user izelsg was trapped inside a convenience store. He posted this terrifying video shortly after, writing:

More details of yesterday's tornado in Joplin, Missouri, have emerged after a press conference there early this morning. Officials said that 89 people are confirmed dead, and a Fire Department spokesman told reporters that the tornado had "cut the city in half." The path of the tornado was a mile wide and six miles long, and it destroyed much of the St. John's Regional Medical Center.