Is It Safe to Stay in a Car During a Thunderstorm?
2 Answers
It is very safe to stay in a car during a thunderstorm. The car's shell is mostly made of metal, and when the doors and windows are closed, the car forms an enclosed space similar to the principle of a "Faraday cage." In this space, the interior is not affected by lightning during a thunderstorm. Here is the relevant explanation: 1. Principle of safety: Staying in a car during a thunderstorm is like installing a lightning rod for the driver. During a thunderstorm, a large number of mobile electrons gather on the car's shell, causing the shell's potential to be similar to that of lightning, thus preventing a potential difference and eliminating the flow of current. 2. Avoid using mobile phones: The instantaneous discharge of lightning creates a strong magnetic field, which can interfere with the electromagnetic waves of a mobile phone. In mild cases, it may cause signal disruption or damage to the phone, and in severe cases, it may even lead to a lightning strike.
Staying in a car during a thunderstorm is indeed relatively safe, primarily because the car's body is made of metal, forming a protective cage-like structure. When lightning strikes the car, the current flows along the outer shell rather than entering the interior to harm occupants, based on an ancient principle called the Faraday cage. However, safety is ensured only if you remain inside the car, close all windows, and avoid touching any metal parts like door handles. I once experienced lightning while driving—the loud noise made my heart race, but nothing happened except for some minor scorch marks on the car's surface. That said, it's important to remember that thunderstorms pose dangers beyond lightning, such as hail or strong winds. Falling branches or billboards could damage the car or even cause accidents. My advice: if the sky starts flashing, don’t risk driving; instead, find a safe place to park and wait, preferably while listening to weather updates. In short, a car is a good shelter from lightning, but don’t overlook other hazards—always prioritize personal safety.
