This is an I-cannot-define-it song... i'll explain you why.
Firstly, during the first minute, I wasn't concentrating very much on the song (It's 1 a.m. here, and I'm quite tired, I can say I was near to fall asleep with your music i my ears) so It initially seemed a calm song, without nothing strange, but while I was listening to the rest of it I understood what you said. I could feel the coming of the storm! So I really like it, and I feel a bit nervous while listening to it!
I have one thing to say: you actually should have done the storm too, or not?