This is one of a number of videos that have appeared recently involving unusual lights being observed in storm clouds. Contrary to the witness’s claims that it has something to do with the HAARP program, it is a known phenomenon. The HAARP project was permanently shut down in 2014, and was never engaged in any activity that would produce lights like this. This is called a crown flash, which takes place when lightning is reflected off of water droplets in rainstorms, a sort of rainbow generated by lightning instead of sunlight. So much for HAARP.

Story Source:
https://www.youtube.com/watch?v=CPk0mKVnnCs#t=45