Suburbs in Perth was devasted by a tornado on June 7th 2012 with winds in the vicinity of about 125km/h. Roofs were damaged along its path and debris hurled into the air in a spectacular fury. Tornadoes at this time of the year are of cool season variety which occur as strong cold fronts and associated vorticity with steep lapse rates provide ideal conditions for low topped storms to spawn tornadoes. Photo sources ABC