The Last Storm by Tim Lebbon (brief note)

Second paragraph of third chapter:

He paid no attention, because he had spent so much time and effort making this place his own, and it was too precious to lose. Yet he had always known that rain would be his downfall.

Interesting and horrifying;I felt that the protagonist’s super powers were magical rather than sfnal. Perhaps it belongs on the same shelf as The Stand. You can get it here.