"Technology has come a long way since then. In 1974, weather radar was crude by today’s standards. We could only see a depiction of the precipitation over a large area. There was no Doppler radar, which allows us to peer inside of storms and see areas of rotation. We lacked the computer power to zoom in and pinpoint the most dangerous part of the storm, let alone track it in real time to give people in the path a heads up to when the storm would be in their backyard."