At its strongest , the tornado was an EF5 , the National Weather Service says . The storm system is expected to move through central and eastern Oklahoma on Friday night into Saturday morning before moving out over southern Kansas by Sunday morning. , more than 100 people rescued after tornado hit , officials say . Insurance claims will likely top $ 1 billion , state insurance official says . `` She was a ball of energy , a ball of love . '' The mayor says `` we ( have ) gone from rescue and searching to recovery ''
At its strongest , the tornado was an EF5 , the National Weather Service says . The storm system is expected to move through central and eastern Oklahoma on Friday night into Saturday morning before moving out over southern Kansas by Sunday morning. , more than 100 people rescued after tornado hit , officials say . Insurance claims will likely top $ 1 billion , state insurance official says . The mayor says `` we ( have ) gone from rescue and searching to recovery ''