"In just twenty minutes it completely leveled a number of houses, and caused other houses to explode as the pressure inside the structures rose when the tornado passed overhead." The affluent residential area to the south was substantially diminished, but the tornado left houses untouched here and there immediately adjacent to houses which were flattened. "n the warehouse district, it destroyed many of the storage buildings. The CPR Roundhouse was stripped to the rafters, and boxcars were pulled from the tracks and hurtled into the air."