Identification of Tornadoes by Observation of Waveform Atmospherics

Research on the characteristics of atmospherics peculiar to tornadoes has been in progress at the Oklahoma Agricultural and Mechanical College since 1947. It has been discovered that high-energy thunderstorms which develop into tornadoes generate discharges with a preponderance of frequencies in the 200- to- 400-kc band. The number of these discharges increases as tornado time is approached.