You need to read more precisely.
Tesla was doing HARRP-like experiments way back.
First of all, that wasn't what you linked to.
Second of all, do you have any understanding of the amount of energy in a thunderstorm? It exceeds that released by a nuclear warhead.
So you are trying to tell me that HAARP can reach out from Alaska with radio waves (and radio intensity decreases with the SQUARE of the distance) and generate massive thunderstorms with that much energy. Suuure...
Maybe you should learn to read a weather map. And read news articles to where hundreds of meterologists were seeing this severe setup coming well in advance. And then tell us how HAARP can include so many people to report the prospect of this in advance.