Disasters can be more personal, a lost job, financial situation, whatever. After the market tanked in 2008, I wound up living for over a year on stored food and local forage.
Up until about 60 years ago, almost everyone went into fall with a room full of stored food. It's just conservative prudence to prepare to take care of yourself and your family, regardless of the circumstances.
/johnny
Okay then, just some routine preparations for any kind of extended “rainy day”.