The first 24 hours
The first 24 hours of a disruption are often about calm, safety, and information. A household should be able to find light, communicate, keep people warm or cool, protect refrigerated food, access needed medications, and understand what is happening locally.
A basic first-day plan includes knowing how to receive emergency alerts, keeping phones charged when severe weather is expected, having flashlights where people can find them, keeping a small amount of cash at home, knowing where important medications are, having a written contact list, and keeping vehicle fuel from running too low. This layer of preparedness costs little. Much of it is habit.
The first 72 hours
The 72-hour layer is the foundation most people recognize. It covers the period when outside help may be delayed, stores may be crowded, roads may be unsafe, or utilities may be disrupted. The full 72-hour readiness guide walks through every category in detail.
Ready.gov recommends storing water at a minimum of one gallon per person per day for several days, for drinking and sanitation — with more needed for pets, hot weather, medical needs, or pregnancy.[1] The Red Cross also recommends a three-day supply of water and nonperishable food as part of basic emergency readiness.[2]
For a family of four, that means at least 12 gallons of water for three days. A 72-hour household supply typically includes water, shelf-stable food, a manual can opener, flashlights or headlamps, a battery or crank radio, phone chargers and backup power banks, first aid supplies, any prescription medications, hygiene and sanitation items, pet food, copies of key documents, basic tools, and blankets or weather-appropriate clothing. A family can build this one grocery trip at a time.
One week and two weeks
This is where preparedness becomes less about a kit and more about household resilience. The full two-week preparedness guide covers every layer in depth.
For food, this can be as ordinary as keeping extra rice, oats, pasta, canned beans, canned meat, peanut butter, shelf-stable milk, soup, cooking oil, and familiar comfort foods. The best emergency food is food your household already knows how to prepare and will actually eat.
For water, storage is only one part. The CDC advises households to store emergency water and to know how to make unsafe water safer if needed. During an emergency, tap water may not be safe, and households should follow local health department guidance.[3]
For power during extended outages, a two-week plan may include battery banks, spare batteries, solar chargers for small devices, and a written plan for charging medical equipment or phones. Generators and camp stoves require care.
Generator safety: Never run a generator, camp stove, grill, or any fuel-burning equipment inside a home, garage, basement, carport, or shed. Keep generators at least 20 feet from any window, door, or vent. Opening a door or window does not make an enclosed space safe — exhaust contains carbon monoxide, an odorless gas. Follow manufacturer instructions and install a battery-operated carbon monoxide alarm on every level of the home.[4]