size hail near Chatham, IL, Columbia, IL and Millstadt, IL on June 29, 2015. This hail storm was traveling ESE at
19.45 mph and produced hail for roughly 3 hour(s). Spotters reported a max hail size of 1.5″ and an average hail size of 1.2″. We estimate that 18,631 buildings were in the affected area. There were 8 spotter report(s) and the volume of hail DHI detected was significant. Based on this information, you can expect to see minor damage to vehicles, tile roofs and crops in isolated areas (Impact Rating 2).
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