TOM A WARNER / WEATHERVIDEOHD.TV / SCIENCE PHOTO LIBRARY TOM A WARNER / WEATHERVIDEOHD.TV / SCIENCE PHOTO LIBRARY
Normal and high-speed footage of an upward lightning discharge from a television tower, which was triggered by a nearby cloud-to-ground strike (not seen). This occurs when the local electric field was enhanced by the first strike. Filmed in Rapid City, South Dakota, USA, in summer.
Model release not required. Property release not required.