Why should planes fly at a low altitude during a solar storm?

During a solar storm, increased solar radiation can disrupt communication and navigation systems, as well as pose risks to passenger safety due to heightened radiation exposure at higher altitudes. Flying at lower altitudes reduces these risks, as the Earth’s atmosphere provides more protection from radiation. Additionally, lower altitudes typically have better access to ground-based navigation systems, enhancing flight safety and operational communication. Overall, flying lower helps mitigate the potential adverse effects of solar storms on aviation.