 Within a minute, the tornado dramatically intensified and struck a small residential area at EF3 intensity.There, two homes were destroyed and another was severely damaged.One of the homes was built with bolts along the foundation perimeter and was reduced to a bare slab, normally indicative of EF5 strength; however, it was found that the anchor bolts were not secured with nuts and washers, and nearby vehicles were not moved, which indicated a lesser intensity.