Literally interpreting the title, I half expected some rain and thunder samples in the intro/outro for dramatic effect, but then dramatic isn't generally your style. I do think it could add a cool dimension, particularly in the breakdown before the "drop", some distant low pass rumbling or something.
Honestly impressed by Avizura picking out the Pendulum samples, I definitely couldn't identify 'em.
I like the mood set by the piano in the intro, and how it builds up by further padding out its melody; it contributes to the build as much as the addition of drums and other samples in the intro. When the latter drop away and the LFO-laden synth becomes the only thing to back the piano, it feels like the calm before the storm, that sudden lack of wind or rain before the thunderstorm is about to really start off. I like the restraint in mix level on that LFO-y synth too, because personally when I put a bunch of effort into carefully modulating stuff, I automatically want to make sure it's properly heard; the subtlety really helps the atmosphere.
In the drop I'm met with signature Quarl reeses. I don't know exactly what it is about them, but whenever I hear them I know beyond a doubt it's a Quarl track. Might be the way you take the resonance all the way up into that squelchiness, without turning it into a deafening ringing mess. Definitely an interesting patch.
[Damnit I was going to drop a quick 2 paragraph at most review on this and get on with my day.]
The chorus/drop (what do you even call these things in songs that aren't just verse/chorus/verse/chorus etc?) works well, repeating the same pattern a few times and then re-introducing that piano for continuity at the right time. The outro works well too.
One small touch I liked was the general midi "ah" sample found on basically every cheap rompler keyboard (the kind you hit "sound", and then punch in a 3 digit number)'s drum kit.
Anyhow, ace track Quarl. Short and sweet, and still chock-full with work to keep stuff varied all over the place. You work definitely never sounds lazy to my ears.