Le mythe de la foudre: les téléphones portables et le métal attirent-ils vraiment les coups de foudre ?

A popular myth suggests that mobile phones and metal objects attract lightning strikes during thunderstorms, but experts say this belief is unfounded. On July 14, 2026, reports emerged that clarify common misconceptions about lightning safety, particularly regarding the role of modern technology and materials in attracting electrical discharges. The discussion comes amid ongoing public interest in how best to protect oneself during severe weather conditions. Lightning has long been a subject of fascination and fear, with many cultures attributing its occurrence to divine intervention or supernatural forces. In Slovenia, traditional beliefs included the idea that church bells could ward off storms and that blessed candles offered protection against lightning. These practices have largely faded with the advancement of scientific understanding, yet some myths persist. One such belief is that lightning never strikes the same place twice, which is false. Lightning often hits high points repeatedly, such as tall poles, church steeples, or telecommunications towers. For example, the Plešivec tower on Mount Uršla experiences approximately 18 lightning strikes annually, making it one of the most frequently struck locations in Slovenia. Another common misconception is that lightning can strike from clear skies. Meteorologists emphasize that lightning originates from clouds, even if the sky above appears clear. The cloud responsible for a lightning strike might be several kilometers away, creating the illusion of a sudden strike from nowhere. This misunderstanding highlights the need for accurate information about storm behavior and safety protocols. During thunderstorms, being inside a car provides a level of protection. A vehicle with a metal frame acts as a Faraday cage, directing the electrical current along the exterior of the car rather than through the interior. Passengers remain safe as long as they avoid touching any metal parts within the vehicle. Similarly, airplanes flying through storm clouds often experience multiple lightning strikes without passengers noticing them. However, these strikes can cause minor damage, such as small holes in fuel tanks, emphasizing the importance of proper aircraft design and maintenance. The notion that mobile phones attract lightning is another widely held but incorrect belief. Scientific evidence shows that using a mobile phone during a thunderstorm does not increase the risk of being struck by lightning. However, it is advisable to avoid using corded landline telephones during severe weather, as their wiring can conduct electricity. Charging devices should also be avoided unless necessary, as power surges from lightning can damage electronics or batteries. While mobile phones themselves do not draw lightning, electrical installations and cables can transmit a lightning strike directly to connected devices, posing risks of fire or electric shock. Public awareness campaigns continue to stress the importance of avoiding water contact, showering, or handling metal objects during thunderstorms. Water conducts electricity efficiently, increasing the likelihood of injury if lightning strikes nearby. Practical advice includes staying indoors, avoiding open fields, and refraining from using electronic devices until the storm has passed. Experts recommend preparing for thunderstorms well in advance, ensuring that essential items like flashlights and batteries are readily available. Emergency preparedness plans should include knowledge of local weather patterns and access to reliable forecasts. Communities are encouraged to stay informed and follow guidelines issued by meteorological services to minimize risks associated with severe weather events. Authorities and emergency management officials are working to disseminate accurate information through various channels, including social media, community outreach programs, and educational initiatives. These efforts aim to correct misunderstandings and promote behaviors that enhance personal and communal safety during thunderstorms. As climate change continues to influence weather patterns, the frequency and intensity of thunderstorms may increase, underscoring the need for ongoing education and vigilance.