How to Prepare for a Blizzard: A Complete Safety Checklist
A blizzard can bring everyday life to a sudden halt. Heavy snow, powerful winds, and freezing temperatures can make roads impassable, disrupt essential services, and leave homes without electricity or heat for days. Knowing how to prepare for a blizzard can help you protect your family, reduce property damage, and avoid last-minute emergencies. Whether you’re facing your first major winter storm or have experienced severe winters before, taking precautions ahead of time can make a significant difference. This guide covers essential preparation steps, home safety measures, and practical ways to handle power outages and other hazards before, during, and after a blizzard.
Quick Answer
To prepare for a blizzard, take these essential steps before severe weather arrives:
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Monitor weather alerts: Follow National Weather Service forecasts and local emergency warnings.
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Prepare emergency supplies: Stock up on food, water, medications, flashlights, and warm clothing for several days.
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Protect your home: Inspect heating systems, insulate exposed pipes, seal drafts, and test carbon monoxide alarms.
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Plan for power outages: Charge essential devices and prepare a reliable backup power source.
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Prepare your vehicle: Check tires, fuel, and battery condition, and keep a winter emergency kit in your car.
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Stay safe during the storm: Avoid unnecessary travel, remain indoors, and follow local emergency instructions.
What Is a Blizzard and Why Is Preparation Important?
A blizzard is a severe winter storm defined by sustained winds or frequent gusts of at least 35 mph, falling or blowing snow that frequently reduces visibility to one-quarter mile or less, and these conditions lasting for at least three hours. Unlike ordinary snowstorms, blizzards do not require heavy snowfall, as strong winds can also blow existing snow across the ground.
Blizzards can disrupt essential services and create dangerous conditions both indoors and outdoors. Understanding the major risks helps households recognize why early preparation matters:
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Dangerous travel conditions: Blowing snow and whiteout conditions can severely limit visibility, make roads impassable, and leave drivers stranded.
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Power outages: Strong winds, falling branches, and ice accumulation can damage power lines, interrupting electricity, heating systems, and communication services.
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Extreme cold: Prolonged exposure to freezing temperatures increases the risk of hypothermia and frostbite, particularly for vulnerable individuals.
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Property damage: Snow accumulation, ice buildup, and strong winds can damage roofs, trees, pipes, and other parts of a home.
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Additional safety hazards: Improper use of fuel-burning equipment can cause carbon monoxide poisoning, while strenuous snow removal can increase the risk of heart-related emergencies.
Winter Storm Watches and Warnings Explained
The National Weather Service (NWS) issues winter weather alerts based on expected storm conditions and local weather risks. A watch means hazardous weather is possible, an advisory indicates potentially disruptive conditions, and a warning means dangerous weather is expected or already occurring. Understanding these alerts helps you know when to prepare and when to take protective action.
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Weather Alert
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When It Is Issued
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What You Should Do
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Winter Storm Watch
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Conditions are favorable for significant snow, sleet, ice, or a combination of winter hazards.
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Review your emergency plan, gather supplies, and monitor forecast updates.
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Winter Weather Advisory
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Snow, sleet, ice, or blowing snow is expected to cause travel difficulties without meeting local warning criteria.
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Use caution outdoors, prepare for slippery roads, and monitor changing conditions.
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Winter Storm Warning
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Significant snow, sleet, ice, or blowing snow is expected or occurring, with thresholds varying by location.
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Complete preparations, postpone unnecessary travel, and follow official instructions.
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Blizzard Warning
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Winds or frequent gusts of at least 35 mph, with falling or blowing snow reducing visibility below ¼ mile for at least three hours, are expected or occurring.
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Stay indoors, avoid travel, and prepare for dangerous visibility and possible power outages.
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Ice Storm Warning
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Significant freezing rain is expected or occurring, typically producing around ¼ inch or more of ice accumulation.
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Avoid travel, stay clear of trees and power lines, and prepare for extended power outages.
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For reliable information, check the National Weather Service, local emergency management agencies, state transportation departments, and your electric utility. Enable Wireless Emergency Alerts on your phone and keep a battery-powered or hand-crank NOAA Weather Radio available in case internet or cellular service becomes unavailable.
How to Prepare Before a Blizzard
Preparing early can help your household manage disruptions to transportation, electricity, and essential services. Complete the following tasks while roads remain safe and stores, pharmacies, and other services are still accessible.
Create a household emergency and communication plan
Decide how family members will stay in touch if phone or internet service becomes unreliable. Choose an out-of-area emergency contact, identify a meeting place, and discuss where to go if your home becomes unsafe or loses heat. Write down important phone numbers and addresses, and make sure everyone, including children and caregivers, understands the plan. Keep emergency contacts accessible and review how to shut off household utilities safely if instructed to do so.
Prepare enough emergency supplies
Stock up on essential supplies before stores close or travel becomes difficult. The American Red Cross recommends keeping at least two weeks of supplies at home and at least three days of essentials in a portable emergency kit. Allow at least one gallon of water per person per day, and adjust quantities to meet your household’s needs.
Your blizzard emergency kit should include:
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Food and water: Nonperishable meals, ready-to-eat snacks, and drinking water.
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Medications and first aid: Prescription medications, essential over-the-counter medicines, and a first-aid kit.
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Emergency lighting: Flashlights, battery-powered lanterns, and spare batteries.
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Communication equipment: A battery-powered or hand-crank radio, phone chargers, and portable power banks.
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Warm clothing and bedding: Insulated jackets, gloves, hats, blankets, and sleeping bags.
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Hygiene supplies: Toilet paper, wet wipes, hand sanitizer, and personal care items.
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Essential tools: A manual can opener, basic household tools, and emergency cash.
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Pet supplies: Extra food, water, medications, leashes, litter, and waste disposal supplies.
Store these items in a dry, accessible location where they can be retrieved quickly during an emergency.
Plan for medical and accessibility needs
If anyone in your household depends on electrically powered medical equipment, refrigerated medication, or regular medical treatment, contact their healthcare provider to develop an emergency plan. Confirm backup power requirements, medication storage instructions, and alternative treatment or shelter options. Make sure mobility aids, ramps, and essential pathways remain accessible, and arrange assistance with transportation or snow removal if needed. Include the needs of infants, older adults, and service animals when planning emergency supplies and shelter arrangements.
Charge devices and secure important documents
Fully charge phones, laptops, power banks, and other essential rechargeable devices before the storm arrives. Download offline maps, save emergency contacts, and enable local weather notifications. Keep printed or securely stored digital copies of identification, insurance policies, prescriptions, and important utility information. Place essential documents in a waterproof container so they remain accessible if you need to evacuate or lose internet connectivity.
Home Preparation for a Blizzard and Power Outage
Preparing your home before a blizzard helps minimize heat loss, prevent weather-related damage, and reduce safety risks during a power outage. Focus on heating equipment, insulation, outdoor hazards, and safe backup power options.
Check heating systems and safety alarms
Have your furnace, boiler, fireplace, chimney, or wood stove inspected and serviced as recommended. Check that heating fuel supplies are sufficient, and keep fire extinguishers accessible. Test smoke and carbon monoxide alarms, replace batteries when needed, and ensure alarms are properly installed on every level and near sleeping areas. If a carbon monoxide alarm sounds, leave the building immediately and call 911 from outside.
Insulate pipes and prevent heat loss
Insulate exposed pipes in unheated areas and along exterior walls, and locate your main water shutoff valve in case a pipe bursts. Seal gaps around windows and doors with caulk or weatherstripping, and close storm windows to help retain indoor heat. During extreme cold, open cabinet doors beneath sinks when appropriate to allow warm air to reach vulnerable plumbing. Never use an open flame to thaw frozen pipes.
Inspect the roof and outdoor areas
Check for damaged shingles, clogged gutters, weak tree branches, and signs of roof damage from a safe location on the ground. Arrange professional repairs or tree trimming before the storm arrives. Clear drainage areas to help melting snow flow away from your foundation, and secure loose outdoor furniture or decorations that could become hazards in strong winds.
Prepare safe backup power and heating options
Plan how to maintain essential electricity and safe heating if the grid goes down. Consider a properly installed home battery backup system or a compatible generator setup, depending on your household’s needs. Fuel-burning generators must operate outdoors, at least 20 feet from doors, windows, and vents, with exhaust directed away from the home. Never connect a generator directly to a wall outlet or use grills, camp stoves, or ovens to heat indoor spaces. Choose battery-powered lighting over candles whenever possible, and use all heating and backup equipment according to the manufacturer’s instructions.
How to Prepare Your Vehicle for Winter Storm Travel
Traveling during a blizzard can be extremely dangerous due to poor visibility, icy roads, and heavy snowfall. Although staying home is the safest option, preparing your vehicle in advance can help if emergency travel becomes necessary.
Check your vehicle before the storm
Check tire pressure and tread depth, battery condition, antifreeze levels, headlights, windshield wipers, heater, and defroster. Keep your gas tank at least half full, preferably full before the storm, or fully charge your electric vehicle when possible. Make sure your vehicle is properly maintained and that its registration and insurance information are up to date.
Pack a winter emergency car kit
Keep a winter survival kit in your vehicle in case you become stranded in snow or freezing temperatures. Essential items include:
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Snow removal tools: Ice scraper, snow brush, and compact shovel.
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Emergency lighting: Flashlight, spare batteries, and reflective warning devices.
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Vehicle supplies: Jumper cables or a portable jump starter, basic tools, and traction materials such as sand or cat litter.
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Communication devices: Phone charger, backup battery, and paper road map.
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Food and water: Bottled water and nonperishable, high-energy snacks.
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Warm clothing: Blankets, insulated coat, gloves, hat, and extra socks.
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Medical supplies: First-aid kit and essential medications.
Share your route and expected arrival time
If travel is unavoidable, tell someone your destination, planned route, and expected arrival time before leaving. Check road conditions through your state transportation department or 511 service where available, and stick to major roads whenever possible. Keep a paper map in your vehicle in case GPS or cellular service becomes unavailable, and update your contact if your plans change.
What to Do During a Blizzard
Once blizzard conditions develop, staying indoors and minimizing exposure to extreme cold are essential. Follow official emergency instructions, maintain safe indoor temperatures, and be prepared to respond if heating or electricity becomes unavailable.
Stay indoors and monitor official alerts
Remain inside and follow updates from the National Weather Service and local emergency authorities. Avoid unnecessary travel or outdoor activities, especially when strong winds and blowing snow reduce visibility. Keep emergency supplies accessible and conserve phone battery if electricity or communication services are disrupted.
Stay warm and recognize cold-related illnesses
Wear loose, warm layers and keep clothing dry. If your heating system stops working, close off unused rooms, draw curtains, and gather in a smaller living area to conserve warmth. Watch for hypothermia symptoms such as shivering, confusion, slurred speech, and drowsiness, as well as frostbite symptoms including numbness or pale, waxy skin. Move anyone showing symptoms to a warm location and seek medical attention. Never rub frostbitten skin or apply direct heat.
Keep essential appliances running during a power outage
If a blizzard causes a power outage, prioritize electricity for essential appliances such as refrigerators, communication devices, lighting, and compatible heating equipment. A properly installed Home Battery Backup system can help maintain these functions when grid power becomes unavailable.
For example, the Anker SOLIX E10 Whole-Home Backup offers expandable battery storage from 6 kWh to 90 kWh across supported configurations, allowing homeowners to adjust capacity to their energy needs. When paired with the compatible Power Dock, it supports automatic backup switching in under 20 milliseconds, helping keep selected household circuits powered during an outage.
Use heating and backup equipment safely
Operate generators, fireplaces, and space heaters according to manufacturer instructions, keeping combustible materials away from heat sources. Never run fuel-burning generators, grills, or camp stoves indoors or use an oven to heat your home. Keep exterior furnace and appliance vents clear of snow when it is safe to do so. If a carbon monoxide alarm sounds or someone develops symptoms such as headache, dizziness, or nausea, leave the building immediately and call 911 from outside.
Protect children, older adults, and pets
Keep children and pets indoors and away from snowplows, icy roads, fallen branches, and other outdoor hazards. Check regularly on older adults, people with medical conditions, and anyone who may struggle to maintain body warmth. Supervise brief outdoor bathroom breaks for pets, and ensure everyone has access to warm clothing, drinking water, and necessary medications.
Know what to do if stranded in a vehicle
If your vehicle becomes stranded, stay inside unless a safe shelter is very close and clearly accessible. Call for help and make your vehicle visible to rescuers using hazard lights or a brightly colored cloth. For a fuel-burning vehicle, run the engine for about 10 minutes each hour for heat only if the exhaust pipe is clear of snow and a window is opened slightly for ventilation. Conserve phone battery, stay warm with blankets, and avoid walking into blowing snow to seek help.
After the Blizzard: Cleanup and Recovery Safety
Even after the snow stops, icy roads, damaged power lines, and unstable structures can remain dangerous. Take precautions before heading outside or starting cleanup.
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Follow official updates and safety instructions: Check local alerts for road closures, power restoration updates, and water safety notices. Avoid unnecessary travel until authorities confirm that conditions have improved, and report outages to your utility provider.
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Check for electrical and property damage: Stay away from downed power lines, damaged trees, and unstable structures. Inspect your home from a safe location for roof damage, leaks, frozen pipes, and blocked heating vents. If you notice a gas leak or serious structural damage, leave the area and contact emergency services.
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Remove snow and ice safely: Clear essential walkways, entrances, and exterior exhaust vents when conditions are safe. Take frequent breaks while shoveling, avoid heavy exertion, and seek help if you have heart-related health risks. Leave dangerous roof snow or ice removal to professionals.
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Check on neighbors and vulnerable residents: Contact older adults, people living alone, and neighbors with medical or mobility needs to make sure they have heat, food, and necessary medications. Offer assistance when safe, and direct anyone needing additional support to local emergency services or community resources.
Conclusion
Knowing how to prepare for a blizzard can help protect your family, home, and essential daily needs when severe winter weather strikes. From monitoring weather alerts and stocking emergency supplies to protecting your property and preparing for power outages, taking action early can make a significant difference.
Reliable backup electricity is also an important part of winter storm preparedness. Solutions like the Anker SOLIX E10 can help keep essential household appliances powered during outages when properly configured. By planning ahead, avoiding unnecessary travel, and following local safety guidance, you can face the next blizzard with greater confidence and peace of mind.
FAQs
What to stock up on before a snowstorm?
Before a snowstorm, stock up on nonperishable food, bottled water, prescription medications, flashlights, batteries, warm clothing, and basic first-aid supplies. Keep at least one gallon of water per person per day and prepare enough essentials for several days. Include pet supplies, hygiene products, and backup phone chargers in case roads become impassable or power outages occur.
Why fill a bathtub before a snowstorm?
Filling a bathtub before a snowstorm provides an emergency water supply if frozen pipes, power outages, or water system disruptions affect your home. This water can be useful for flushing toilets and basic cleaning. However, bathtub water should not be considered safe for drinking unless it has been properly treated and stored in a suitable container.
What are the three requirements for a blizzard?
According to the National Weather Service, a blizzard must meet three conditions: sustained winds or frequent gusts of at least 35 mph, falling or blowing snow that frequently reduces visibility to less than one-quarter mile, and these conditions lasting at least three hours. Heavy snowfall is not required because strong winds can also blow snow already on the ground.
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