Rescue workers search the Green Acres Campground in Pine Lake, Alta., Saturday, July 15, after a tornado touched down in the area Friday evening. Twenty years after a tornado swept through a campground at a scenic tree-lined lake in central Alberta, killing a dozen people and turning trailers into kindling, Heather Thomson has a pocketful of miracles to reflect on. She's the grandmother of Ashley Thomson, who was just four months old when she was ripped from her car seat and sucked up as high as a three-storey building by the twister at Pine Lake on July 14, 2000. THE CANADIAN PRESS/Adrian Wyld