The storm over western Oklahoma on June 23, 2014 produced hundreds of sprites and some ELVEs and also some rare phenomena called negative sprites. I am still processing the captures. The radio emissions in the video are VLF-ELF, very low frequency and extremely low frequency, and you can hear the lightning strokes that generated the sprites.
More transient luminous events and sprite specimens can be found here:
Color near infrared image here of sprite above: heliotown.com/Sprite_June_23_2014.html
More various observations here : heliotown.com
Thomas Ashcraft – New Mexico