The longer answer is that now it's summer, long, hot, sultry days, rounded off with a finale of atmospheric fireworks. But sometimes the thunder and lightning fail to materialize, even on the most stifling of summer days, and on other occasions the sky starts to rumble with seemingly no provocation. read more
Yes. Lightning strikes both follow magnetic fields and create them, dependent upon a wide range of circumstances. Read up on the experiments of Nikola Tesla for some fascinating reading about it. read more
Meredith, S. L., Earles, S. K., Kostanic, I. N., & Turner, N. E. (2010). The magnetic field induced by a lightning strike's indirect effect double exponential current waveform. Journal of Mathematics and Statistics, 6(3), 221-225. read more