While this site is dedicated to cyber-security, either as consumers, or professionals trying to get into the trade, physical security is a close sibling.
I have a background in emergency communications. I am a second generation amateur radio operator. In that hobby (and part of the draw) I was, and hope to resume being, active in emergency communications function. I have been a communications officer for the U.S. Civil Air Patrol, another organization that I would encourage people to be involved with.
Here are the emergency plans that I am working on to help you consider for yourself or family: