I'd like to mention some of the thing we do for emergencies that fit our situation. Nana has an outstanding list and in this state there's no such thing as too prepared.
In general, if a power outage is probable, we keep all the cans and vehicles filled with gas. We fill the bathtubs with water (for washing and flushing toilets) and plastic barrels of water for live stock. We keep a lot of canned goods and bottled water in the house and because the entire clan usually gathers here they bring more. Batteries are important because as Nana said, the generator doesn't power everything. And toilet paper!
For winter, (I grew up in South Dakota a long time ago) we have a wood fire place and a propane cook stove. A propane grill is something most people have.
Tornado and fire season, bug out bags and tubs of important stuff are by the back door. Nana mentioned something I didn't think of and that's assigning tasks. I back up the computer to a portable hard drive and keep it in a safe deposit box in town along with irreplaceable things. Since the only road to our house includes a dam, we keep a vehicle on the other side in case it washes out because it does overflow. Keep the shelter stocked with water and a little food or snacks. I keep a camping tent and a little portable grill in the shelter too.
I know I've mentioned things that most of you already do, but I was in the military for a long, long time, and went through just about anything you can imagine. And I tend to ramble!
Having said all that this is a wonderful place to live and family, good friends and neighbors make it what it is!