To a certain extent weather makes preppers of us all. I daresay people in Syracuse can rely on harsher weather coming more regularly than down here on the Texas coast. We get hurricanes and tropical storms but they have the entire Gulf Coast and Eastern Seaboard to choose from.
Every time a storm comes we get the usual advisories to stock up on a few days of food, check flashlight batteries, fill a clean tub with tap water for drinking, etc. Those things are drilled into your head from grade school and are repeated on news broadcasts before every major storm.
What's interesting is the unexpected byproduct of outages. Particularly here in the South home construction techniques have changed over the last 100 years. Older homes have lots of large, screened windows, whole house fans and vented attics to help move large amounts of air and help with heat. Even without power you can open all your windows and get a cross breeze. New construction is heavily insulated, has fewer windows and makes no concessions for mass airflow outside the air conditioning system.
Hurricane Katrina was an epiphany for many home owners down here as power was out for weeks afterwards; previously comfortable homes became sweltering hotboxes. The effect on local generator supply was immediate and obvious: sold out everywhere. I heard through the grapevine of entrepreneurs driving down truckloads of them to make a quick buck.
Even so gasoline-fueled generators can be difficult to keep fueled after a hurricane - people leaving the city have a tendency to deplete supplies and gas stations may not have power to pump. But natural gas tends to stay on even when power fails since gas distribution systems can have their own generation and some use the fuel they're moving to maintain pressure.
All the anecdotal evidence I have points to a heavy uptick in natural-gas-fired whole house generator sales after Katrina. In fact there was a trend for a while of new construction actively advertising whole house generator inclusion. I think it happened to a lesser extent again after Ike. Life really stinks down here without air conditioning. I guess my point is most preppers seem to concentrate on food and water, but at least down here electricity is high on the list. :-)