My neighbor had lots of food storage in those ubiquitous 5 gal buckets. He (and 10 other homes)were flooded from a careless farmer who didn't build up his dikes high enough. Everything in those buckets were ruined. He even had vacuum sealed food that had water get in! (I can't explain that...) The only things that survived were 2 liter bottles and canned food.

I store my grains in #10 cans that my church allows us to "dry-pack". They are bombproof and make flour last 4-5 years. We have a nice rotating storage rack to make rotation easier http://www.shelfreliance.com/

In a disaster situation, remember that your food storage requirements may have to take a real beating and survive.