Is There a Difference Between Good Day Rules and Bad Day Rules?

The rules a lot of the times are built for, I don't want to say a good day, but a predictable day. This is entirely different. Look what's going on in Buffalo right now, right? With all these people being found frozen under vehicles and their homes. Is there a checklist for that for doing these kinds of rescues in the middle of a blizzard or an ice storm?"