The problem with Storm Call is that it doesn't care whether the ones surrounding you are friendly or not, it will attack them either way. This makes Storm Call the perfect shout to use if you want to be hated by everyone. The shout is completely useless in combat, unless you are fighting off a horde of skeletons or something, where civilians and friendly people won't be nearby. I really wish the shout would only attack hostiles, then it would actually be pretty useful. Even if I stand in the plains and activate the shout, there will be people near settlements/camps that will be unfortunate enough to stand under the wrath of the Dovahkiin.
Storm Call is only useful if you want to be a dike. I haven't played Skyrim in months, so if this has changed I'll be happy. I really wished the shout wouldn't attack non-hostiles.
Actually, the problem isn't exactly that the lightning hits everything, but it's the fact that those who are hit turn against me. It doesn't make sense that they are to blame me for a natural disaster either, especially not when they weren't around to witness me summoning the storm.