Whole power line poles snapped and down at 1530 Dempster in Mount
Prospect and Des Plaines area. Power outages in Arlington Heights along
Arlington Heights Road, Elk Grove Village, Palatine and Mount Prospect.
Click here for radar image of the storm from 2:44 p.m. until 4:18 p.m. that brought trees and utility lines down, collapsed the warehouse in West Chicago, and started building fires during a tornado warning Thursday afternoon.