Severe thunderstorms, lightning, and winds gusting to 65 m.p.h. thwarted cleanup efforts by volunteers and homeless residents attempting to salvage what was left from a weekend tornado here that killed 10 and caused up to $100 million in damage. The twister cut a swath 15 miles long and 300 and 400 yards wide through town.
Gov. James R. Thompson said he had been assured by President Reagan that federal disaster aid would be made available to the community.