Much of the damage was done well away from the landfall site , as Carla caused one of the largest hurricane-related tornado outbreaks on record at the time , when 26 tornadoes touched down within its circulation . Much of the damage was done well away from the landfall site , as Carla spawned one of the largest hurricane-related tornado outbreaks on record at the time , when 26 tornadoes touched down within its circulation .