Use saltwater only if you distill it first. Do NOT drink flood water. Even though it is unlikely that an emergency would cut off your food supply for two weeks, you should consider preparing a supply that will last that long. The easiest way to develop a two-week stockpile is to increase the amount of basic foods you normally keep on your shelves. If your water supply is limited, try to avoid foods that are high in fat and protein, and don't stock salty foods, since they will make you thirsty.
Familiar foods can lift morale and give a feeling of security in time of stress.
Also, canned foods won't require cooking, water, or special preparation. Take into account your family's unique needs and tastes. Try to include foods that they will enjoy and that are also high in calories, protein, carbohydrates, vitamins, and minerals. Pack at least a three-day supply of nonperishable food and water, and store it in a handy place. You need to have these items packed and ready in case there is no time to gather food from the kitchen when disaster strikes.