Doppler radar detected Quarter size hail near Sioux City, IA, Norfolk, NE and Le Mars, IA on August 31, 2021. This hail storm was traveling ESE at 24 mph and the entire storm produced hail for roughly 12 hour(s). There were 11 spotter report(s) with reported max hail size of 1.75″ and an average hail size of 1.16″. We estimate that 111,130 buildings were in the affected area and the probability of hail DHI detected was significant. Based on this information, you can expect to find widespread roof damage, broken glass and automobile bodywork damage in well populated areas.
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