1. The impending Zombie menace
2. Hurricanes
3. Fires, house and wildland
4. Home invasion robbery, Burglary
5. Temporary disruption of essential utilities & services
6. Temporary disruptions to commerce & the economy
7. Temporary disruptions to civil order & law enforcement
8. Industrial and environmental accidents
9. Anything unforeseen and unpleasant

In addition to being prepared for the sorts of "big" disasters that could befall my community, I consider having food, etc. stored to be an affordable and convenient form of personal, short-term unemployment and disability insurance.

Anyone with three to six months of groceries on hand is certainly better able to cope with a sudden job loss than anyone without.

Jeff