Winter storm preparedness means having a safe backup heat source, knowing how to stop pipes from freezing, and keeping a stocked emergency kit in your car. These three steps protect your family and your home when a storm knocks out power or strands you on the road. This guide walks through each one using official safety guidance.
Warning Signs to Know Before a Storm Hits
Some winter storm dangers can hurt you before you realize what is happening. Learn these warning signs now.
- Carbon monoxide poisoning: headache, dizziness, weakness, nausea, or confusion. This gas is colorless and odorless, so a working CO alarm is the only reliable early warning.
- Hypothermia: shivering, slurred speech, clumsiness, or confusion in a cold room or vehicle.
- Frostbite: numbness, waxy-looking skin, or a white or grayish-yellow patch on fingers, toes, ears, or nose.
- A frozen or burst pipe: no water from a faucet, or water spraying, dripping, or bulging from a wall, ceiling, or pipe.
If someone shows signs of carbon monoxide poisoning or hypothermia, get them to fresh air or warmth right away and call for emergency help. Do not wait to see if symptoms pass on their own.
Alternative Heating: What’s Safe When the Power Goes Out
A backup heat source keeps your home livable during an outage and helps protect your pipes from freezing. But home heating equipment is a leading cause of house fires each winter, and portable generators are a top source of deadly carbon monoxide poisoning. Safety rules matter as much as the heat source itself.
Generators
A gasoline-powered generator can produce carbon monoxide as fast as hundreds of car engines running at once. Follow these rules without exception:
- Run the generator outdoors only, at least 20 feet from doors, windows, and vents, with the exhaust pointed away from your home.
- Never run a generator inside a home, garage, basement, shed, or crawlspace, even with doors and windows open.
- Install carbon monoxide alarms with battery backup on every level of your home and outside sleeping areas, and test them monthly.
- Never use a generator to backfeed power into your home’s wiring. This is illegal in most areas and can electrocute utility workers.
Space Heaters and Fireplaces
- Keep portable heaters at least three feet from beds, curtains, furniture, and anything else that can burn.
- Never heat a home using a gas stovetop or oven. This is a common but dangerous mistake during outages.
- Have fuel-burning heating equipment, fireplaces, and chimneys professionally inspected every year.
- Never burn charcoal indoors, and always keep proper ventilation around any fuel-burning heater.
For readers building a longer-term backup heat and power plan, our guide to off-grid power and heating systems covers wood stoves, propane, and solar setups in more depth.
Pipe Protection: Stopping Freezes Before They Start
Frozen pipes can burst and cause serious water damage, and prevention is far easier than repair. Official guidance points to a few key steps.
- Insulate pipes that run through unheated spaces, like a garage, attic, crawlspace, or exterior wall.
- Seal drafts around pipes and foundation openings with caulk or weather stripping.
- Know where your main water shutoff valve is located before a storm arrives.
- Let faucets drip slightly during extreme cold, and keep cabinet doors under sinks open so warm air reaches the pipes.
- Keep your thermostat set to the same temperature day and night during a cold snap, even if you leave the house.
If a pipe does freeze, shut off the water supply before it thaws, since a frozen pipe may already be cracked. If your home loses power for an extended stretch and pipes can’t be kept warm, review your options in our water storage guide so a burst pipe doesn’t also mean a water shortage.
Vehicle Emergency Kits: What to Keep in the Car
Winter storms strand drivers on roads that freeze faster than forecasts predict. A basic kit and a few habits reduce that risk.
- Keep the gas tank near full to help prevent ice from forming in the tank and fuel lines.
- Pack a flashlight with extra batteries, jumper cables, a windshield scraper, and sand or cat litter for traction.
- Bring warm blankets, extra clothing, and gloves in case you’re stuck without heat.
- Carry bottled water and non-perishable snacks.
- Keep a phone charger and a paper map, since GPS and cell service can be unreliable in a storm.
If you get stranded, stay with your vehicle unless help is clearly visible nearby, and run the engine only in short bursts with a window cracked to prevent carbon monoxide buildup from a snow-blocked exhaust pipe. For a full list of what to pack for extended travel disruptions, see our prepping for beginners guide.
Home vs. Vehicle Preparedness: Quick Comparison
- Primary risk at home: carbon monoxide poisoning and house fires from heating equipment. Primary risk in a vehicle: being stranded without heat, water, or communication.
- Key home tool: a working carbon monoxide alarm with battery backup. Key vehicle tool: a full tank of gas and a charged phone.
- Home prevention step: insulate pipes and know your shutoff valve. Vehicle prevention step: check road conditions and delay travel when possible.
- Shared supply need: water, non-perishable food, and warm layers, stored in both locations.
Evidence Limits and Extra-Caution Groups
Official guidance changes as agencies update safety recommendations, so always check current instructions from Ready.gov, the CDC, or your local emergency management office before a storm. Product-specific details, like a heater’s clearance distance or a generator’s ventilation requirements, come from the owner’s manual, since these vary by model.
Older adults, infants, people with chronic health conditions, and anyone without reliable heat should take extra precautions and check in with neighbors or family during extended cold snaps. This article does not replace guidance from local emergency officials or a qualified professional for your specific home heating system.
Frequently Asked Questions
Can I use a generator in my garage with the door open?
No. A generator should never run inside a garage, even with the door open. Carbon monoxide can build up quickly and opening the door does not provide enough ventilation.
How do I know if my pipes have already frozen?
A frozen pipe usually means little or no water comes out when you turn on the faucet. Shut off the main water valve before the pipe thaws, since it may have already cracked, and contact a plumber if you’re unsure.
Is it safe to run my car in the driveway to stay warm during an outage?
Never leave a car running in a closed garage, and use caution running it outdoors near your home. Exhaust can seep into living spaces even from outside, so keep the vehicle well away from doors, windows, and vents.
How much water should I store for a winter storm?
General guidance suggests at least one gallon per person per day, with a two-week supply recommended when possible. See our water storage guide for container and rotation details.
This article is for educational purposes only and is not a substitute for professional advice. Always follow instructions from local emergency officials, your utility company, and equipment manufacturers, and consult a qualified professional for home heating, electrical, or plumbing work.