The pets definitely could tell that something was up. Pre-storm, both cats watched the birds in the yard gather food, and Dorothy, bothered by the shifts in barometric pressure, kept close to wherever we were. Once Sandy arrived and the winds got nasty, however, Posy got down to important hurricane business: she gave her little person a thorough cleaning. Here she is next to me on the couch, getting jiggy with her tummy region:
What? I already have batteries and candles at the ready!