Along with your generator for the power FReepers need to think about a supply of gas for it also. I have a 6.2Kw generator and the 5 gallon tank does not last very long. I think we got something like 10 hrs out of the generator’s 5gal. tank. We ran a frig, TV w/satellite a couple of lights and a couple of fans and a coffee maker. We also ran a small microwave with other loads turned off. I keep at least 20 gallons of gas, treated with Sta-Bil, in reserve at all times. You will need oil also. Used the generator for two weeks after Katrina. I would not expect the wide spread power outages like after Katrina or an ice storm for a tornado but having a couple of days of gas for the gen set would be wise.
We keep the vehicles pretty well topped off. They are our back gas supply. The truck alone holds 27 gallons. Keeping it in the spare vehicles also helps rotate it and keep it fresh.
By keeping an eye on the news (Hurricane / Ice Storm) we fill up a 5 gallon can a couple of days before the mad rush. If nothing happens we dump it in one of the cars.
Being in the city and in a neighborhood with underground utilities we’ve never been out of power more than two days.