I said so because of the potential of power loss, which is why i specified electric reliant heat. Gusts over 60mph plus ice means a lot of the city is at least at risk for power outage, and when the power goes, so does electric and some oil heat. If the power stays on, I'm sure cats can do a few days, and the pipes are unlikely to burst anywhere that would cause dangerous flooding for the cats. But if electric heat is all you have, and there's a risk of power outage, that's something to consider. That's why I said that.