What action should you take if trapped in a car during a blizzard?

When trapped in a car during a blizzard, running the engine for warmth periodically is the safest action. This approach helps to maintain a warm environment inside the vehicle, which is crucial for preventing hypothermia in extremely cold conditions. It is important to ensure that the exhaust pipe is clear of snow to prevent carbon monoxide buildup, which can be deadly.

This strategy allows you to conserve fuel while still benefiting from the warmth the engine provides when it is running. Additionally, being inside the car protects you from the wind and snowfall, which can further decrease your body temperature.

Other options, such as turning the car off to conserve fuel, may expose you to dangerous cold conditions. Staying outside to wave for help can be futile and increases the risk of exposure to harsh weather. Leaving the car to find shelter could also be misguided, as it may lead you further away from safety, especially if visibility is low and the likelihood of getting lost is high. Thus, remaining in the vehicle, with the engine running periodically for warmth, is the most practical decision in such a scenario.