What a winter storm home kit must cover
Key takeaways
• Build for the problems winter storms commonly create: loss of heat or power, limited communications, dangerous roads and delayed access to supplies.
• Ready.gov recommends one gallon of water per person per day for several days. Adjust for local guidance, pets, medical needs and your realistic storage capacity.
• Use flashlights or battery lights as the first choice during an outage. Never run a portable generator inside or in a garage, basement, crawlspace, shed, porch or carport.
• Store the kit where household members can reach it, label dates and test alarms, radios, lights and power banks before the season.
A winter storm emergency kit is not a random box of camping gear. It is a household system for staying informed, hydrated, fed and warm when roads are unsafe, stores are closed or electricity and phone service fail.
The National Weather Service says the main home concerns during a winter storm are loss of heat, power and telephone service, plus shortages if conditions continue for more than a day. The Centers for Disease Control and Prevention similarly warns that winter storms can bring cold, outages, communication failures and icy roads.
The best kit reflects those specific failure points. It should work in the dark, remain usable without cooking, include the needs of every person and pet, and avoid introducing carbon monoxide or fire risks. This guide focuses on preparation, not medical or emergency-response diagnosis. Follow local authorities, utility instructions and product manuals during an actual event.
Start with two risks: isolation and power loss
Isolation changes what you can buy and how quickly help can reach you. Power loss affects lighting, communications, refrigeration, heating controls and some medical equipment. Write down which household functions stop when the power goes out.
Check five dependencies:
1. Heat: Does the main heating system require electricity even if it burns another fuel?
2. Water: Is the home on an electric well pump, or could pipes freeze?
3. Communication: Which phones, radios or internet equipment need charging?
4. Health: Does anyone rely on powered medical equipment, refrigerated medicine, mobility support or regular care?
5. Access: Who might be unable to use stairs, carry water or reach a high storage shelf?
These answers determine priorities. A household with an electric well pump needs more stored water. Someone using powered medical equipment needs an outage plan developed with the equipment provider and local emergency services, not simply a larger consumer power bank.
The COLD READY framework
Use COLD READY to turn a shopping list into a maintained preparedness system.
Communications
Keep a battery-powered or hand-crank radio, phone charging cables, charged power banks and written contact numbers. Save local emergency management, utility outage and non-emergency numbers. Enable official weather alerts and keep a paper map if travel may become necessary.
Outage basics
Store flashlights, headlamps, spare batteries, a first-aid kit, hygiene supplies, trash bags, a manual can opener and basic tools. Battery lights reduce fire risk compared with candles. Test devices together so you know the batteries and connectors fit.
Life essentials
Store water and non-perishable food that the household already eats and can prepare without mains power. Include warm layers, hats, gloves, blankets or sleeping bags. Rotate food and water according to labels and official storage guidance.
Documents and decisions
Keep waterproof copies of identification, insurance information, medicine lists, emergency contacts and essential account or property details. Add a simple plan: where to shelter, when to move to a warmer location, how family members will reconnect and who will check on vulnerable neighbors or relatives.
Reliable heat and carbon-monoxide safety
Test smoke and carbon-monoxide alarms and keep battery backup where applicable. Follow the manufacturer’s instructions for any heater. Do not improvise indoor heating with grills, charcoal, camp stoves or outdoor cooking equipment.
The U.S. Consumer Product Safety Commission says portable generators must be used outdoors only, at least 20 feet from homes and buildings, with exhaust directed away from windows, doors and vents. Opening a garage door or window does not make indoor generator use safe.
Extra household needs
Add prescription and medical items as advised by the relevant clinician or pharmacist, along with glasses, hearing-aid batteries, mobility supplies, baby items and pet food, water, medication, carrier or leash. Do not change medicine storage, dosing or refill plans based on a generic checklist.
Access and storage
Use labeled, water-resistant containers that household members can open. Split heavy water from lighter supplies. Put frequently needed lights and radios where they can be reached in darkness. Keep a smaller go bag near the exit if local hazards may require evacuation.
Dates and maintenance
Create an inventory with purchase or expiry dates. Check food, water, medicines, batteries, alarms and power banks at least before each winter season and after any use. Replace damaged items and update contacts, family needs and pet records.
Yearly practice
Run a short drill without turning off critical systems. Find the kit in low light, tune the radio, charge a phone, locate the water shutoff and review the meeting plan. Practice exposes missing cables, dead batteries and unclear responsibilities safely.
Core winter storm emergency kit checklist
Water and food
• Water for several days, calculated per person and adjusted for pets and special needs
• Non-perishable, easy-to-prepare food
• Manual can opener if the kit contains cans
• Infant food or formula where needed
• Pet food and water
• Disposable or reusable utensils that do not require extensive washing
Information and power
• Battery-powered or hand-crank radio; NOAA Weather Radio where available
• Flashlights or headlamps
• Correct spare batteries stored separately
• Charged power banks and device cables
• Printed contacts, local maps and copies of alerts or plans
Warmth and shelter
• Warm, dry layers for each household member
• Hats, gloves, socks and sturdy footwear
• Blankets or sleeping bags
• Safe room plan for concentrating people in the warmest suitable area
• Weather stripping or temporary draft-control supplies that do not block required ventilation
Health and hygiene
• First-aid kit
• Prescription and medical items under professional guidance
• Soap, sanitizer, wipes, toilet paper and personal hygiene products
• Trash bags and ties for sanitation
• Masks if advised for local hazards or individual needs
• Accessibility, mobility, vision or hearing supplies
Safety and tools
• Working smoke and CO alarms with appropriate backup
• Fire extinguisher that household members know how to use
• Multi-tool, wrench or pliers as appropriate
• Whistle
• Work gloves
• Battery-operated lights
• Manufacturer instructions for heaters, generators and medical equipment
Documents and comfort
• Waterproof copies of identification, insurance and medical information
• Emergency contacts and household communication plan
• Small amount of local cash if appropriate
• Quiet activities for children
• Pet carrier, leash, identification and cleanup supplies
Calculate water without guessing
Ready.gov’s basic kit guidance calls for one gallon of water per person per day for several days, covering drinking and sanitation. Use this baseline calculation:
Household water baseline = number of people × planned days × 1 gallon
For four people and three days:
4 × 3 × 1 gallon = 12 gallons
That is a planning baseline, not a universal ceiling. Add water for pets and follow local emergency management advice. More may be needed for pregnancy, illness, hot indoor conditions, medical use or other needs. The American Red Cross recommends a longer home supply than an evacuation supply, but storage conditions and local risks vary.
Do not rely on snow as the primary water plan. Melting and treating snow uses energy and requires safe handling. Store water in approved containers and follow manufacturer or public-health guidance for rotation and treatment.
Choose food that works during an outage
Prioritize food that is shelf-stable, familiar, easy to open and safe without refrigeration. Choose a mix that supplies energy and variety without depending on an electric stove.
Check each item against four questions:
• Can it be eaten safely without cooking?
• Can everyone in the household eat it, considering allergies and dietary requirements?
• Does it require water that should be reserved for drinking?
• Can it be opened with the tools in the kit?
Label the kit’s manual can opener. Avoid placing all food in one heavy container. Review dates before winter and use normal pantry rotation so emergency food does not become waste.
Light, power and communication
Place at least one flashlight or headlamp in every sleeping area and next to the main kit. Headlamps keep hands free for checking pipes, helping children or moving supplies. Store batteries in their original packaging where contacts cannot short.
Charge power banks before predicted severe weather, but treat them as limited reserves. Put phones in low-power mode and use text messages when networks are congested. A battery or hand-crank radio provides a route to official information when mobile data or home internet fails.
Do not use vehicle engines inside a garage to charge devices. If you use a vehicle outdoors, ensure the exhaust pipe is clear of snow and follow official safety advice.
Warmth without creating a fire or CO hazard
Warm clothing and blankets are the lowest-risk first layer. Close doors to unused rooms where safe, block drafts without covering required vents, and gather household members in a suitable room.
Fuel-burning devices create carbon monoxide, an odorless and potentially fatal gas. Never use a grill, charcoal, camp stove or portable generator indoors. Never use a generator in a garage, basement, crawlspace, shed, porch or carport, even if doors are open.
CPSC guidance says to operate a portable generator outdoors at least 20 feet from the home, direct exhaust away from openings and follow the manufacturer’s instructions for wet conditions. Use working CO alarms on every level and outside sleeping areas. If an alarm sounds or carbon-monoxide exposure is suspected, get outside to fresh air immediately and call emergency services.
Space heaters also require strict manufacturer instructions and clear space from materials that can burn. If the home cannot be kept safely warm, follow local directions and move to a designated warming center or other safe location before travel becomes more dangerous.
Medical, accessibility, baby and pet needs
Generic lists fail when they ignore the household. Make a person-by-person addendum.
For medication and powered medical equipment, ask the clinician, pharmacist, equipment supplier or utility about safe storage, backup power and priority-restoration or emergency programs. Keep a written medicine list. Do not stockpile, alter dosing or move refrigerated medicines into unverified conditions.
For mobility or sensory needs, include spare batteries, chargers, communication cards and a plan for assistance. For babies, add formula or food, bottles, diapers, wipes and warm clothing. For pets, include food, water, medication, identification, carrier or leash and a plan for pet-friendly shelter.
Home kit, go bag and car kit compared
Kit | Purpose | Priority contents | Storage rule
Home kit | Shelter safely through an outage or blocked roads | Larger water and food supply, warmth, radio, lighting, sanitation, documents | Accessible, dry location; heavy water stored separately
Go bag | Leave quickly when authorities advise evacuation | Identification, medicine, contacts, water, compact food, charger, clothing | Light enough for the user to carry
Car kit | Manage a breakdown or delayed trip in winter | Blanket, warm clothes, food, water, light, charger, scraper, shovel and traction aid | Secured in vehicle; checked before winter trips
Do not make the home kit portable at the cost of having too little water, and do not make a go bag too heavy to carry. The three kits solve different problems.
A 60-minute setup plan
Minutes 0–10: List household members, pets, health needs, power dependencies and likely local winter hazards.
Minutes 10–25: Gather water, food, light, radio, charging, warmth, hygiene and first-aid basics already in the home.
Minutes 25–35: Add documents, contacts and a written outage and evacuation plan.
Minutes 35–45: Test smoke and CO alarms, flashlights, radio and power banks. Replace failed batteries or devices.
Minutes 45–55: Label containers, dates and storage locations. Separate the heavy water supply.
Minutes 55–60: Tell every household member where the kit is and schedule a seasonal review.
A complete kit can be built in stages. Start with life safety, water, food, light and communication, then improve comfort and redundancy. Do not delay safety planning while trying to buy a perfect branded kit.
When to leave or call for help
Leave immediately when local authorities order evacuation. Call emergency services for a fire, suspected carbon-monoxide exposure, severe medical symptoms, a downed live power line or another immediate threat.
Move to a designated warming center or other safe heated location if the home cannot maintain safe conditions, especially where household members are medically vulnerable. Do not travel through closed roads or around barricades. Conditions can differ sharply by location, so official local instructions override a general online checklist.
Frequently asked questions
How much water belongs in a winter storm kit?
Ready.gov recommends one gallon per person per day for several days. Multiply household members by planned days, then adjust for pets, health needs and local guidance.
Are candles suitable for a power outage kit?
Battery-operated lights are the safer first choice. If candles are used, follow fire-safety guidance, keep them away from anything that can burn and never leave them unattended.
Can a generator run in a garage with the door open?
No. CPSC says never operate a portable generator in a home, garage, basement, crawlspace, shed or other enclosed area. Use it outdoors at least 20 feet from the home, with exhaust directed away from openings.
How often should the kit be checked?
Review it before each winter season and after use. Check dates, batteries, alarms, power banks, contacts, clothing sizes, medicines under professional guidance and changing household needs.
Should the kit include a space heater?
Only include or use a heater that is suitable for the location and can be operated exactly as the manufacturer directs. Maintain required clearances and never improvise with outdoor cooking or fuel-burning devices.
