Originally posted by RobtardSaruman has powers to do so and Gandalf is also an elite wizard from the same universe who so happens to use a storm to defeat a Balrog. If you can't(mainly won't) see the connection then I don't know what to tell you.
There's as much proof for Gandalf (the Grey) making the storm/lightning as there is for the storm happening when it did and Gandalf using his abilities to capitalize on it. You're just going to have to accept this.Not even sure why you're so hard up on lightning taking down a T-800, it's powered by a nuclear device powerful enough to make a small mushroom cloud and it's designed for battle, so I doubt some lighting will shut it down.
The power was enough to kill a Balrog who would dominate a Terminator with a sword.