 Additionally, it produced the largest (in area) and longest (in distance and duration) recorded swaths of very large hail, up to baseball size, and also incurred the most expensive damages of any hailstorm in U.S. history.At $2 billion in insured losses, it was more damaging than the most damaging tornado, in real dollars, the Oklahoma City Tornado of May 3, 1999.Hundreds of vehicles outside a Ford Assembly Plant in Hazelwood were damaged as well as almost every house within the city of Florissant in St. Louis County.