We slept up top and got blasted, but to get the clearing or oncoming storm shots, you need to be in the storm at some point.
I remember on viewing "Clearing Winter Storm Yosemite" having the realization that "Ah! That means that you have to be there, ready to shoot, DURING the storm".
Since then, like you, I've tended to aim for shzzty weather.
Thanks for freezing your ass off up there. Well worth it, IMHO.