Weather Emergencies
Blizzard while driving: what to do?
A blizzard can turn a routine drive into a life-threatening situation in minutes. Know how to react if you're caught on the road.
Written by Emily Brooks · Reviewed by Claire Dubois · Updated October 31, 2026 · Reviewed October 30, 2026 · 3 min read
Immediate actions
- 1 Slow down and turn on your headlights and hazard lights if visibility is poor.
- 2 If conditions become too dangerous, pull off the road as far as possible and stay in your vehicle.
- 3 Call emergency services if you are stranded, injured, or in immediate danger.
- 4 Run the engine only occasionally for heat, and crack a window to avoid carbon monoxide buildup.
- 5 Stay with your car and make it visible to rescuers.
What not to do / warning
Carbon monoxide is a silent killer. Never run your engine if the exhaust pipe is blocked by snow, and always crack a window for ventilation.
Being caught in a blizzard while driving is dangerous: whiteout conditions can reduce visibility to near zero, roads become icy, and you can become stranded quickly. The following steps can help you stay safe until conditions improve or help arrives.
What to do first
- Slow down and increase your following distance. Turn on your headlights and, if visibility is very poor, your hazard lights. Avoid sudden braking or steering.
- If you must stop, pull off the road as far as possible. Turn on your hazard lights and keep your seatbelt on. Do not get out of the vehicle unless absolutely necessary.
- Call for help if you are stranded or in danger. Use your phone to call emergency services. Give your location using highway markers, mileposts, or GPS coordinates if possible.
If you are stranded
- Stay in your vehicle. It provides shelter and makes it easier for rescuers to find you. Do not wander into the storm.
- Run the engine only occasionally for heat. Run it for about 10 minutes per hour, then turn it off. Before running the engine, ensure the exhaust pipe is clear of snow to prevent carbon monoxide poisoning. Crack a window slightly for fresh air.
- Make your vehicle visible. Turn on interior lights and hazard lights. Tie a brightly colored cloth to the antenna or door handle. At night, keep a dome light on.
- Stay warm. Use blankets, extra clothing, or emergency blankets. Move around to maintain circulation but avoid overexertion.
- Conserve phone battery. Use your phone sparingly and keep it warm (e.g., in an inside pocket).
What NOT to do
- Do not leave your vehicle to search for help unless you can see a building clearly and it is safe to do so.
- Do not run the engine continuously in an enclosed space or if the exhaust is blocked by snow.
- Do not overexert yourself by shoveling snow or pushing the car; this can lead to injury or heart strain.
- Do not ignore emergency warnings or road closures.
When to call for help
Call emergency services immediately if you are stranded, injured, or in immediate danger. If you have a medical emergency, call first and follow dispatcher instructions.
How to prevent getting caught
- Check weather forecasts and road conditions before traveling. Avoid unnecessary travel during blizzard warnings.
- Keep an emergency kit in your vehicle: blankets, extra warm clothing, food, water, flashlight, first-aid kit, phone charger, shovel, and sand or cat litter for traction.
- Keep your gas tank at least half full.
- Inform someone of your route and expected arrival time.
Stay calm, stay in your vehicle, and wait for help. This is general information and not a substitute for professional advice. In an emergency, call your local emergency services immediately.
Sources & references
- Ready.gov - Winter Weather (https://www.ready.gov/winter-weather)
- National Weather Service - Winter Safety (https://www.weather.gov/safety/winter)